CN103726830A - Pole plate assembly for logging instrument - Google Patents
Pole plate assembly for logging instrument Download PDFInfo
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- CN103726830A CN103726830A CN201210381068.XA CN201210381068A CN103726830A CN 103726830 A CN103726830 A CN 103726830A CN 201210381068 A CN201210381068 A CN 201210381068A CN 103726830 A CN103726830 A CN 103726830A
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Abstract
The invention relates to a pole plate assembly for a logging instrument. The pole plate assembly comprises a pole plate base body (1). The pole plate base body (1) comprises at least one inner cavity used for containing data collecting and processing circuits (5) and at least one rear cover (2). At least one opening which is communicated to the at least one inner cavity is defined in the lower surface of the at least one inner cavity, and the at least one rear cover (2) is mounted in the at least one opening of the pole plate base body (1) through sealing screws (3). The pole plate base body (1) comprises at least one supporting pillar (15) which extends downwards from the top, and the at least one rear cover (2) comprises at least one supporting pillar (19) which is matched with the at least one supporting pillar (15) of the pole plate base body (1).
Description
Technical field
The present invention relates to the pole plate assembly for logger, relate more specifically to sealing, pressure-bearing, insulation and the shielding construction of this pole plate assembly.
Background technology
Micro-resistivity imaging well logging is mainly used in crack identification and evaluation, high-resolution Thin-bed Evaluation, and sedimentation environmental analysis, ground is inner structure and structure interpretation layer by layer, and rock core location and description.Use the well logging of Microresistivity Imaging Tool device can obtain real visual high-quality borehole wall geologic image.
Microresistivity device is measured well surface resistivity with fine dimension, the measurement result of this resistivity is changed into pixel intensity value, to obtain borehole wall image.The such logging instrument of initial exploitation is for for conducting electricity drilling fluid (such as water-base mud).But, because the impedance variations in the oil-base mud of encirclement logging instrument, so the resistive drilling fluid such as oil-base mud can hinder this type of measurement.
Oil-base mud and artificial synthetic drilling mud can greatly reduce drilling well risk by strengthening hole stability, improve greatly drilling efficiency simultaneously.But under such environment, the advantage of micro-resistivity imaging technology has not existed, conventional Microresistivity Imaging Tool can not well be worked in non-conductive like this mud.As a rule, the shortage of microresistivity well image is representing the loss of the important information to successfully developing reservoir.Therefore, develop that to be used for the Microresistivity Imaging Tool device of oil-base mud very urgent.
Pole plate is as the sensor of micro-resistivity imaging logging instrument, scans, the work such as data processing.The quality of pole plate directly affects logging quality.Pole plate assembly is support and the hermetic unit of pole plate.Due to pole plate assembly built-in electronic circuit, therefore the sealing of pole plate assembly, pressure-bearing, insulation and shielding become the key of pole plate invention.
Summary of the invention
The object of the invention is to for oil well logging instrument, especially oil-base mud resistivity imaging instrument, provide a kind of can 180 ℃, under the working environment of 140MPa, pressure bearing and seal internal cavity does not leak, inner lead can not produce the pole plate modular construction disturbing to circuit.
In order to meet above-mentioned requirements, the invention provides a kind of pole plate assembly for logger, this pole plate assembly comprises:
Polar plate matrix, described Polar plate matrix comprises at least one internal cavity for holding data acquisition processing circuit and at soffit, limits at least one opening of sensible described at least one internal cavity; And
At least one bonnet, described at least one bonnet is arranged on by sealing screw in described at least one opening of described Polar plate matrix,
Wherein, described Polar plate matrix comprises at least one support column from top to downward-extension, and described at least one bonnet comprises at least one support column coordinating with at least one support column of described Polar plate matrix.
According to a preferred embodiment of the invention, described pole plate assembly also comprises wiring cover, and described wiring cover is arranged on the soffit of Polar plate matrix front end by screw.
According to a preferred embodiment of the invention, described at least one support column of described at least one support column of described Polar plate matrix and described at least one bonnet all has strip cross section, and described data acquisition processing circuit is provided with strip hole.
According to a preferred embodiment of the invention, two of the quantity of internal cavity, two internal cavities communicate with each other by multiple cable tray and multiple trough.
According to a preferred embodiment of the invention, isolation mutually between described multiple cable tray, and isolation mutually between multiple trough, when described at least one bonnet is arranged on Polar plate matrix, described multiple troughs form enclosed construction.
According to a preferred embodiment of the invention, Polar plate matrix front end has multiple the first closed holes, and the two ends at Polar plate matrix top and centre have the second closed hole and the 3rd closed hole, and the second closed hole is with respect to the 3rd closed hole symmetry.
According to a preferred embodiment of the invention, described multiple first closed holes of Polar plate matrix front end are equipped with multiple single core pressure bearing and seal plugs and a multicore pressure bearing and seal plug.
According to a preferred embodiment of the invention, second closed hole at Polar plate matrix top is equipped with emission electrode sealing-plug, and the 3rd closed hole at Polar plate matrix top is equipped with collecting electrode sealing-plug (36).
According to a preferred embodiment of the invention, Polar plate matrix internal cavity is provided with the square groove of laying data acquisition processing circuit, and square groove two ends are provided with step in order to support data acquisition processing circuit.
According to a preferred embodiment of the invention, described at least one bonnet is provided with the screwed hole that holds sealing screw, and the dimensions of screwed hole is more bigger than sealing screw, described at least one bonnet is by screwing in screwed hole and eject from Polar plate matrix with the screw of screwed hole same size specification.
According to a preferred embodiment of the invention, sealing screw is used end face seal, and the head of sealing screw is provided with seal groove near a side of screw thread.
According to a preferred embodiment of the invention, described at least one bonnet surrounding is provided with the seal groove for holding sealing ring.
According to a preferred embodiment of the invention, the upper surface of described Polar plate matrix is provided with recess, and described pole plate assembly also comprises:
Insulating slab, the two ends of described insulating slab are provided with a pair of groove;
Laterally be embedded in a pair of emission electrode plate in the groove of described insulating slab; With
Electricity button, described electricity button is embedded in the middle part of described insulating slab;
This arranges with respect to described electricity button symmetrically to emission electrode plate.
According to a preferred embodiment of the invention, described pole plate electrode system also comprises multiple volute springs and multiple emission electrode sealing-plug, described volute spring is arranged in the hole at insulating slab two ends, between emission electrode plate and emission electrode sealing-plug, and contact with emission electrode plate and emission electrode sealing-plug; Described emission electrode sealing-plug is arranged in the closed hole at Polar plate matrix two ends; Described emission electrode plate, volute spring and emission electrode sealing-plug form emission electrode system.
According to a preferred embodiment of the invention, described pole plate electrode system also comprises multiple collecting electrode sealing-plugs, and described collecting electrode sealing-plug is arranged in the closed hole at Polar plate matrix middle part, and insulating slab, electricity button and collecting electrode sealing-plug form collecting electrode system.
According to a preferred embodiment of the invention, insulating slab is curved thin plate, and its width equates with Polar plate matrix, and described insulating slab adopts PEEK resin material to make, and insulating slab covers Polar plate matrix and removes the surface beyond front end and afterbody.
According to a preferred embodiment of the invention, the insulating slab thickness between emission electrode plate and Polar plate matrix exceedes 5mm.
According to a preferred embodiment of the invention, emission electrode plate is the metal sheet roof covering of arc.
According to a preferred embodiment of the invention, circular groove is arranged at electricity button bottom, arranges consistent with collecting electrode sealing-plug.
According to another embodiment of the invention, provide the method for a kind of installation for the pole plate assembly of logger, comprise the following steps:
Polar plate matrix is provided, and described Polar plate matrix comprises at least one internal cavity for holding data acquisition processing circuit and at soffit, limits at least one opening of sensible described at least one internal cavity;
Data acquisition processing circuit is passed through on screw fixed polar plate matrix; And
At least one bonnet is arranged on by sealing screw in described at least one opening of described Polar plate matrix,
Wherein, described Polar plate matrix comprises at least one support column from top to downward-extension, and described at least one bonnet comprises at least one support column coordinating with at least one support column of described Polar plate matrix.
According to a preferred embodiment of the invention, described method also comprises: the soffit that wiring cover is arranged on to Polar plate matrix front end by screw.
According to a preferred embodiment of the invention, Polar plate matrix front end has multiple the first closed holes, and the two ends at Polar plate matrix top and centre have the second closed hole and the 3rd closed hole, and the second closed hole is with respect to the 3rd closed hole symmetry, and described method also comprises:
Multiple single core pressure bearing and seal plugs and a multicore pressure bearing and seal plug are arranged in described multiple closed holes of Polar plate matrix (1) front end;
Emission electrode sealing-plug is arranged in second closed hole at Polar plate matrix top; And
Collecting electrode sealing-plug is arranged in the 3rd closed hole at Polar plate matrix top.
According to a preferred embodiment of the invention, described at least one bonnet surrounding is provided with seal groove, described method also comprises: before in described at least one opening that at least one bonnet is arranged on to described Polar plate matrix by sealing screw, sealing ring is placed in the seal groove of described at least one bonnet.
According to a preferred embodiment of the invention, the upper surface of described Polar plate matrix is provided with recess, and described method also comprises:
Insulating slab is arranged in the recess of described Polar plate matrix, the two ends of described insulating slab are provided with a pair of groove;
A pair of emission electrode plate is laterally embedded in the groove of described insulating slab; With
Electricity button is embedded in to the middle part of described insulating slab;
This arranges with respect to described electricity button symmetrically to emission electrode plate.
The invention has the beneficial effects as follows: Polar plate matrix internal cavity and bonnet all have the support column arrangement of strip, this structure can improve the bearing strength of bonnet, can also serve as the shielding construction of data acquisition processing circuit in chamber.Described Polar plate matrix has two pressure-bearing internal cavities, between internal cavity, communicates, and this design can make, in described pole plate assembly, more data acquisition processing circuit is housed, and coordinates bonnet and sealing ring positiver sealing.Polar plate matrix internal cavity is provided with trough around, after bonnet is assembled on Polar plate matrix, described trough is isolated into independent cable tray by bonnet and Polar plate matrix, by the holding wire in cable tray and power line, can data acquisition processing circuit not produced and be disturbed.Multiple single core pressure bearing and seal plugs and multicore pressure bearing and seal plug are housed in Polar plate matrix forward end seal hole, between sealing-plug, mutually separate and pass through sealing ring positiver sealing, this design makes power supply Fen Li with signal code, can not produce interference.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, it is clearer that these and other objects and advantages of the present invention will become, in the accompanying drawings:
Fig. 1 is the rear isometric view of pole plate assembly according to an embodiment of the invention.
Fig. 2 is the isometric front view of pole plate assembly according to an embodiment of the invention.
Fig. 3 is the side sectional view of pole plate assembly according to an embodiment of the invention, and wherein, insulating slab is removed, so that Polar plate matrix to be shown better.
Fig. 4 is the forward sectional view of the Polar plate matrix of pole plate assembly according to an embodiment of the invention.
Fig. 5 is the horizontal cross of the Polar plate matrix of pole plate assembly according to an embodiment of the invention.
Fig. 6 is the stereogram of the bonnet of pole plate assembly according to an embodiment of the invention.
Fig. 7 is the side sectional view of pole plate assembly according to an embodiment of the invention.
Fig. 8 is the horizontal cross of pole plate assembly according to an embodiment of the invention.
Fig. 9 is the forward sectional view of pole plate assembly according to an embodiment of the invention.
Figure 10 is the stereogram of pole plate assembly according to an embodiment of the invention.
Figure 11 is the side sectional view of pole plate assembly according to an embodiment of the invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, by exemplary mode, the present invention is described in further detail.
Fig. 1 and Fig. 2 have described the structure of the pole plate assembly of oil-base mud instrument by stereogram, comprise Polar plate matrix 1, multiple bonnet 2, sealing screw 3, wiring cover 4, data acquisition processing circuit 5, single core pressure bearing and seal plug 6 and multicore pressure bearing and seal plug 7.Although illustrated that in Fig. 1 and 2 pole plate assembly comprises two bonnets 2, should be understood that, pole plate assembly can comprise the bonnet 2 of other quantity, such as but not limited to 3,4 etc., and does not depart from scope of the present invention.
Described Polar plate matrix 1 comprises at least one internal cavity for holding data acquisition processing circuit 5 and at soffit, limits at least one opening of sensible described at least one internal cavity.Bonnet 2 is arranged in described at least one opening of described Polar plate matrix 1 by sealing screw 3.
As shown in Figure 1, described Polar plate matrix 1 comprises at least one support column 15 from top to downward-extension.As shown in Figure 2, described bonnet 2 comprises at least one support column 19 coordinating with at least one support column 15 of described Polar plate matrix 1.Although illustrated that in Fig. 1 and 2 each internal cavity of Polar plate matrix 1 comprises that 5 support columns 15 and each bonnet 2 comprise 5 support columns 19, but should be understood that, pole plate assembly can comprise support column 15 and the support column 19 of other quantity, such as but not limited to 3,4 etc., and do not depart from scope of the present invention.
As illustrated in fig. 1 and 2, described at least one support column 19 of described at least one support column 15 of described Polar plate matrix 1 and described at least one bonnet 2 all has strip cross section.Correspondingly, described data acquisition processing circuit 5 is provided with strip hole, for described at least one support column 15 of described Polar plate matrix 1 or described at least one support column 19 of described at least one bonnet 2 are therefrom passed.Should be understood that, described at least one support column 1 of described at least one support column 15 of described Polar plate matrix 1, described at least one bonnet 2 and the hole of data acquisition processing circuit 5 can adopt other shape, and do not depart from scope of the present invention.
As shown in Figure 3, Polar plate matrix 1 front end has multidiameter 8, and there are two mutually perpendicular pin-and-holes 9 rear end, and these two parts part that is connected, makes pole plate assembly be connected with other parts of oil-base mud instrument.
The two ends at Polar plate matrix 1 top and centre have closed hole 10 and closed hole 11, and the closed hole 10 at two ends is with respect to intermediate seal hole 11 symmetries.
As shown in Figure 4, the 11 one-tenth fan-shaped distributions of multiple closed holes in the middle of Polar plate matrix 1, closed hole 11 axis overlap with Polar plate matrix 1 cambered surface normal, and these closed holes are used for installing corresponding sealing-plug.
As shown in Figure 5, Polar plate matrix 1 front end laterally has side by side in multiple the first closed hole 12, the first closed holes 12 multiple single core pressure bearing and seal plugs 6 and a multicore pressure bearing and seal plug 7 is housed.Should be understood that, the quantity of single core pressure bearing and seal plug 6 and multicore pressure bearing and seal plug 7 can be other quantity, and does not depart from scope of the present invention.Single core pressure bearing and seal plug 6 and multicore pressure bearing and seal plug 7 are threaded connection and are fixed on Polar plate matrix 1.Single core pressure bearing and seal plug 6 and multicore pressure bearing and seal plug 7 are high temperature resistant pressure part, use PEEK resin material to make, and have good insulating properties and heat-resisting quantity.
As shown in Figure 5, Polar plate matrix 1 internal cavity is provided with the square groove 13 of laying data acquisition processing circuit 5, square groove 13 two ends are provided with semicircular step 14 in order to support data acquisition processing circuit 5, and step has replaced the double-screw bolt of common use, has effectively utilized space.Square groove 13 middle parts have the support column 15 of strip.Support column 15 has improved the bearing strength of Polar plate matrix 1 and bonnet 2, and provides shielding construction for the element in data acquisition processing circuit in chamber 5.
On Polar plate matrix 1, be also provided with trough 16, be used for laying the wire of drawing from closed hole 11.
As shown in Figure 6, bonnet 2 is arranged on Polar plate matrix 1, and fixing by sealing screw 3.Bonnet 2 is provided with seal groove 17, and fitted seal circle can guarantee the positiver sealing under the high temperature and high pressure environment of down-hole.
Described bonnet 2 is provided with the screwed hole 18 that holds sealing screw 3, and the dimensions of screwed hole 18 is more bigger than sealing screw 3.Bonnet 2 is by screwing in screwed hole 18 and eject from Polar plate matrix 1 with the screw of screwed hole 18 same size specifications.Bonnet 2 has strip support column 19 structures equally, matches with the support column 15 on Polar plate matrix 1, has improved the bearing strength of bonnet 2.
Wiring cover 4 is fixed by screws in Polar plate matrix 1 front end, the wire that can protect single core pressure bearing and seal plug 6 of being arranged on Polar plate matrix 1 and multicore pressure bearing and seal plug 7 and be connected.
If Fig. 7 is to as shown in Fig. 9, multiple data acquisition processing circuit 5 are arranged in the internal cavity of Polar plate matrix 1.Single core pressure bearing and seal plug 6 and multicore pressure bearing and seal plug 7 are arranged in Polar plate matrix 1 forward end seal hole.Sealing-plug external cabling is connected with instrument, and back panel wiring is connected with data acquisition processing circuit 5 by trough 20.
Between two internal cavities of Polar plate matrix 1, be also provided with cable tray 22, isolation mutually between passage, the wire that the first closed hole 11 from Polar plate matrix 1 is drawn is connected to by cable tray 22 and trough 16 in the data acquisition processing circuit 5 on both sides, when bonnet 2 is arranged on Polar plate matrix 1,16 one-tenth enclosed constructions of trough, can not disturb between wire wherein.
Figure 10 and Figure 11 have described the structure and composition of oil-base mud pole plate electrode system, and wherein, pole plate assembly comprises pole plate body 1, insulating slab 32, and emission electrode plate 33, volute spring 34, emission electrode sealing-plug 35, collecting electrode sealing-plug 36 and electricity buckle 31.The upper surface of described pole plate body 1 is provided with opening.Described insulating slab 32 is arranged in the opening of described pole plate body 1, and the two ends of described insulating slab 32 are provided with a pair of groove.A pair of emission electrode plate 33 is laterally embedded in the groove of described insulating slab 32.Described electricity button 31 is embedded in the middle part of described insulating slab 32.This arranges with respect to described electricity button 31 symmetrically to emission electrode plate 33.Collecting electrode sealing-plug 36 is arranged in the 3rd closed hole 11 at pole plate body 1 middle part, and electricity button 31 is embedded in insulating slab 32, and coordinates and contact with collecting electrode sealing-plug 36 heads.
As shown in figure 10,10 electricity buttons 31 are arranged on the middle part of described insulating slab 32, and are arranged to two rows.Should be understood that, insulating slab 32 can arrange the electricity button 31 of other quantity and arrangement, and does not depart from scope of the present invention.
Described pole plate assembly can comprise multiple volute springs 34 and multiple emission electrode sealing-plug 35, described volute spring 34 is arranged in the hole at insulating slab two ends, between emission electrode plate 33 and emission electrode sealing-plug 35, and contact with emission electrode plate 33 and emission electrode sealing-plug 35; Described emission electrode sealing-plug 35 is arranged in second closed hole 10 at pole plate body 1 two ends.
Described pole plate assembly can comprise multiple collecting electrode sealing-plugs 36, and described collecting electrode sealing-plug 36 is arranged in the 3rd closed hole 11 at pole plate body 1 middle part.
Insulating slab 32, emission electrode plate 33, volute spring 34, emission electrode sealing-plug 35 has formed the emission electrode system of pole plate electrode system.Insulating slab 32, electricity button 31, collecting electrode sealing-plug 36 has formed the collecting electrode system of pole plate electrode system.
As shown in figure 10, insulating slab 32 is curved thin plates, and width is consistent with pole plate body 1, and fits tightly with pole plate body 1 cambered surface.Insulating slab 32 adopts PEEK resin material to make, and has good insulating properties.The surface that insulating slab 32 covers pole plate body 1 removes front end and afterbody, making between pole plate emission electrode system and collecting electrode system the electric field of formation can not be subject to pole plate body 1 affects.
As shown in figure 11, emission electrode plate 33 is curved metal thin plates, laterally place and be embedded in insulating slab 32 two ends, and symmetrical with respect to 31 one-tenth, the electricity button at insulating slab 32 middle parts.It is area that emission electrode plate 33 has increased emission electrode, makes emission current signal coverage rate wider.
Insulating slab 32 thickness between emission electrode plate 33 and pole plate body 1 exceed 5mm, have guaranteed the insulating properties between emission electrode plate 33 and pole plate body 1.
Between emission electrode plate 33 and emission electrode sealing-plug 35, by volute spring 34, connect, volute spring 34 has formed pressure contact with upper and lower both sides, makes signal transmission good.Volute spring 34 takes up room little, and elastic deformation is large, is adapted at using in small space.
Emission electrode sealing-plug 35 is arranged in the closed hole at pole plate body 1 two ends, and position is corresponding with emission electrode plate.Although Figure 11 only shows each emission electrode plate 33 and is provided with an emission electrode sealing-plug 35.But should be understood that, each emission electrode plate 33 can arrange the emission electrode sealing-plug 35 of other quantity, and does not depart from scope of the present invention.
Describe now the method for installing for the pole plate assembly of logger, said method comprising the steps of:
Data acquisition processing circuit 5 is passed through on screw fixed polar plate matrix 1; And
At least one bonnet 2 is arranged in described at least one opening of described Polar plate matrix 1 by sealing screw 3.
Wherein, described Polar plate matrix 1 comprises at least one support column 15 from top to downward-extension, and described at least one bonnet 2 comprises at least one support column 19 coordinating with at least one support column 15 of described Polar plate matrix 1.
Described method can also comprise: the soffit that wiring cover 4 is arranged on to Polar plate matrix 1 front end by screw.
Multiple single core pressure bearing and seal plugs 6 and a multicore pressure bearing and seal plug 7 are arranged in described multiple closed holes 12 of Polar plate matrix 1 front end;
Emission electrode sealing-plug 25 is arranged in second closed hole 10 at Polar plate matrix 1 top; And
Collecting electrode sealing-plug 36 is arranged in the 3rd closed hole 11 at Polar plate matrix 1 top.
Described at least one bonnet 2 surrounding are provided with seal groove 17, described method can also comprise: before in described at least one opening that at least one bonnet 2 is arranged on to described Polar plate matrix 1 by sealing screw 3, sealing ring is placed in the seal groove 17 of described at least one bonnet 2.
The upper surface of described Polar plate matrix 1 is provided with recess, and described method can also comprise:
Insulating slab 32 is arranged in the recess of described Polar plate matrix 1, the two ends of described insulating slab 32 are provided with a pair of groove;
A pair of emission electrode plate 33 is laterally embedded in the groove of described insulating slab 32; With
This arranges with respect to described electricity button 31 symmetrically to emission electrode plate 33.
It should be understood that the only unrestricted technical scheme of the present invention in order to explanation of above embodiment.Although the present invention is had been described in detail with reference to above-described embodiment, but those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the present invention, and do not depart from the spirit and scope of the present invention, and claims are intended to contain and fall into these modifications of spirit and scope of the invention or be equal to replacement.
Claims (24)
1. for a pole plate assembly for logger, this pole plate assembly comprises:
Polar plate matrix (1), described Polar plate matrix (1) comprises at least one internal cavity for holding data acquisition processing circuit (5) and at soffit, limits at least one opening of sensible described at least one internal cavity; And
At least one bonnet (2), described at least one bonnet (2) is arranged on by sealing screw (3) in described at least one opening of described Polar plate matrix (1),
Wherein, described Polar plate matrix (1) comprises at least one support column (15) from top to downward-extension, and described at least one bonnet (2) comprises at least one support column (19) coordinating with at least one support column (15) of described Polar plate matrix (1).
2. pole plate assembly according to claim 1, is characterized in that, described pole plate assembly also comprises wiring cover (4), and described wiring cover (4) is arranged on the soffit of Polar plate matrix (1) front end by screw.
3. pole plate assembly according to claim 1, it is characterized in that, described at least one support column (15) of described Polar plate matrix (1) and described at least one support column (19) of described at least one bonnet (2) all have strip cross section, and described data acquisition processing circuit (5) is provided with strip hole.
4. pole plate assembly according to claim 1, is characterized in that, two of the quantity of internal cavity, and two internal cavities communicate with each other by multiple cable tray (22) and multiple trough (16).
5. pole plate assembly according to claim 4, it is characterized in that, isolation mutually between described multiple cable tray (22), and isolation mutually between multiple troughs (16), when described at least one bonnet (2) is arranged on Polar plate matrix (1), described multiple troughs (16) form enclosed construction.
6. pole plate assembly according to claim 1, it is characterized in that, Polar plate matrix (1) front end has multiple the first closed holes (12), the two ends at Polar plate matrix (1) top and centre have the second closed hole (10) and the 3rd closed hole (11), and the second closed hole (10) is with respect to the 3rd closed hole (11) symmetry.
7. pole plate assembly according to claim 6, is characterized in that, described multiple first closed holes (12) of Polar plate matrix (1) front end are equipped with multiple single core pressure bearing and seal plugs (6) and a multicore pressure bearing and seal plug (7).
8. pole plate assembly according to claim 6, it is characterized in that, second closed hole (10) at Polar plate matrix (1) top is equipped with emission electrode sealing-plug (25), and the 3rd closed hole (11) at Polar plate matrix (1) top is equipped with collecting electrode sealing-plug (36).
9. pole plate assembly according to claim 1, it is characterized in that, Polar plate matrix (1) internal cavity is provided with the square groove (13) of laying data acquisition processing circuit (5), and square groove (13) two ends are provided with step (14) in order to support data acquisition processing circuit (5).
10. pole plate assembly according to claim 1, it is characterized in that, described at least one bonnet (2) is provided with the screwed hole (18) that holds sealing screw (3), and the dimensions of screwed hole (18) is more bigger than sealing screw (3), described at least one bonnet (2) is by screwing in screwed hole (18) and eject from Polar plate matrix (1) with the screw of screwed hole (18) same size specification.
11. pole plate assemblies according to claim 10, is characterized in that, sealing screw (3) is used end face seal, and the head of sealing screw (3) is provided with seal groove near a side of screw thread.
12. pole plate assemblies according to claim 5, is characterized in that, described at least one bonnet (2) surrounding is provided with the seal groove (17) for holding sealing ring.
13. pole plate assemblies according to claim 1, is characterized in that, the upper surface of described Polar plate matrix (1) is provided with recess, and described pole plate assembly also comprises:
Insulating slab (32), described insulating slab (32) is arranged in the recess of described Polar plate matrix (1), and the two ends of described insulating slab (32) are provided with a pair of groove;
Laterally be embedded in a pair of emission electrode plate (33) in the groove of described insulating slab (32); With
Electricity button (31), described electricity button (31) is embedded in the middle part of described insulating slab (32);
This arranges with respect to described electricity button (31) symmetrically to emission electrode plate (33).
14. pole plate assemblies according to claim 13, it is characterized in that, described pole plate assembly also comprises multiple volute springs (34) and multiple emission electrode sealing-plug (35), described volute spring (34) is arranged in the hole at insulating slab two ends, be positioned between emission electrode plate (33) and emission electrode sealing-plug (35), and contact with emission electrode plate (33) and emission electrode sealing-plug (35); Described emission electrode sealing-plug (35) is arranged in the closed hole at Polar plate matrix (1) two ends; Described emission electrode plate (33), volute spring (34) and emission electrode sealing-plug (35) form emission electrode system.
15. pole plate assemblies according to claim 14, it is characterized in that, described pole plate assembly also comprises multiple collecting electrode sealing-plugs (36), described collecting electrode sealing-plug (36) is arranged in the closed hole at Polar plate matrix (1) middle part, and insulating slab (32), electricity button (31) and collecting electrode sealing-plug (36) form collecting electrode system.
16. pole plate assemblies according to claim 13, it is characterized in that, insulating slab (32) is curved thin plate, its width equates with Polar plate matrix (1), described insulating slab (32) adopts PEEK resin material to make, and insulating slab (32) covers Polar plate matrix (1) and removes front end and afterbody surface in addition.
17. pole plate assemblies according to claim 13, is characterized in that, insulating slab (32) thickness between emission electrode plate (33) and Polar plate matrix (1) exceedes 5mm.
18. pole plate assemblies according to claim 13, is characterized in that, emission electrode plate (33) is the metal sheet roof covering of arc.
19. pole plate assemblies according to claim 15, is characterized in that, circular groove is arranged at electricity button (31) bottom, arranges consistent with collecting electrode sealing-plug (36).
20. 1 kinds of installations are used for the method for the pole plate assembly of logger, comprise the following steps:
Polar plate matrix (1) is provided, and described Polar plate matrix (1) comprises at least one internal cavity for holding data acquisition processing circuit (5) and at soffit, limits at least one opening of sensible described at least one internal cavity;
Data acquisition processing circuit (5) is passed through on screw fixed polar plate matrix (1); And
At least one bonnet (2) is arranged on by sealing screw (3) in described at least one opening of described Polar plate matrix (1),
Wherein, described Polar plate matrix (1) comprises at least one support column (15) from top to downward-extension, and described at least one bonnet (2) comprises at least one support column (19) coordinating with at least one support column (15) of described Polar plate matrix (1).
21. methods according to claim 20, is characterized in that, described method also comprises: the soffit that wiring cover (4) is arranged on to Polar plate matrix (1) front end by screw.
22. methods according to claim 20, it is characterized in that, Polar plate matrix (1) front end has multiple the first closed holes (12), the two ends at Polar plate matrix (1) top and centre have the second closed hole (10) and the 3rd closed hole (11), the second closed hole (10) is with respect to the 3rd closed hole (11) symmetry, and described method also comprises:
Multiple single core pressure bearing and seal plugs (6) and a multicore pressure bearing and seal plug (7) are arranged in described multiple closed holes (12) of Polar plate matrix (1) front end;
Emission electrode sealing-plug (25) is arranged in second closed hole (10) at Polar plate matrix (1) top; And
Collecting electrode sealing-plug (36) is arranged in the 3rd closed hole (11) at Polar plate matrix (1) top.
23. methods according to claim 20, it is characterized in that, described at least one bonnet (2) surrounding is provided with seal groove (17), described method also comprises: before in described at least one opening that at least one bonnet (2) is arranged on to described Polar plate matrix (1) by sealing screw (3), sealing ring is placed in the seal groove (17) of described at least one bonnet (2).
24. methods according to claim 20, is characterized in that, the upper surface of described Polar plate matrix (1) is provided with recess, and described method also comprises:
Insulating slab (32) is arranged in the recess of described Polar plate matrix (1), and the two ends of described insulating slab (32) are provided with a pair of groove;
A pair of emission electrode plate (33) is laterally embedded in the groove of described insulating slab (32); With
Electricity button (31) is embedded in to the middle part of described insulating slab (32);
This arranges with respect to described electricity button (31) symmetrically to emission electrode plate (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381068.XA CN103726830B (en) | 2012-10-10 | 2012-10-10 | Pole plate component for logger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210381068.XA CN103726830B (en) | 2012-10-10 | 2012-10-10 | Pole plate component for logger |
Publications (2)
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| CN106321091A (en) * | 2016-08-29 | 2017-01-11 | 中国石油天然气集团公司 | High temperature ultrahigh pressure microresistivity scanning imaging polar plate and preparation method thereof |
| CN107178362A (en) * | 2017-07-26 | 2017-09-19 | 中国石油大学(华东) | A kind of oil/gas drilling gas cut early detection device based on impedance bioelectrical measurement |
| CN107605460A (en) * | 2017-10-31 | 2018-01-19 | 中国石油集团川庆钻探工程有限公司 | Polar plate of storage type micro-resistivity scanning imaging logging instrument of drilling tool |
| CN108316914A (en) * | 2017-01-16 | 2018-07-24 | 中国石油集团长城钻探工程有限公司 | Portable resistor rate scanning imagery instrument pole plate |
| CN110725681A (en) * | 2018-07-16 | 2020-01-24 | 中国石油化工股份有限公司 | Near-bit measuring device |
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| CN106321091B (en) * | 2016-08-29 | 2020-06-09 | 中国石油天然气集团公司 | High-temperature ultrahigh-pressure micro-resistivity scanning imaging polar plate and preparation method thereof |
| CN108316914A (en) * | 2017-01-16 | 2018-07-24 | 中国石油集团长城钻探工程有限公司 | Portable resistor rate scanning imagery instrument pole plate |
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