CN107060643A - A kind of hybrid rotary steering system of high build angle rate and its control method - Google Patents
A kind of hybrid rotary steering system of high build angle rate and its control method Download PDFInfo
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- CN107060643A CN107060643A CN201611169799.2A CN201611169799A CN107060643A CN 107060643 A CN107060643 A CN 107060643A CN 201611169799 A CN201611169799 A CN 201611169799A CN 107060643 A CN107060643 A CN 107060643A
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- rotary steering
- steering system
- backup
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- palm
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- 238000000034 method Methods 0.000 title claims description 27
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000005553 drilling Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of high hybrid rotary steering system of build angle rate, the rotary steering system includes upper centralizer, backup palm and drill bit, the upper centralizer, backup palm and drill bit contact with the borehole wall at 3 points, by by overcoming pushing type rotary steering system guidance capability to be influenceed by bottom factor, form hole curvature and complete deflecting function, the outer backup of the present invention is combined with interior sensing, and system deflecting ability is greatly promoted；Outer backup is shared with interior sensing hydraulic power system, and system design is simplified；System has good adaptability to various stratum；The bending mandrel of system is disconnected, drive mechanism is connected using universal joint, the force-bearing situation of mandrel is effectively improved, improves system lifetim and reliability.
Description
Technical field
The invention belongs to petroleum underground instrument technical field, and in particular to a kind of high hybrid rotary steering system of build angle rate
And its control method.
Background technology
Rotary steerable drilling technology is the progress steerable drilling under conditions of drill string full rotation, represents current drilling well skill
The highest level of art, its rotation equipped with a control bias stabilizer or controllable bit side force (guiding force) above drill bit
Turn steering tool, and equipped with complete rotary steerable drilling control system, wellbore trajectory can be regulated and controled when drill string rotating is crept into
One technology.When carrying out drillng operation using rotary steerable drilling technology, it is not necessary to which three-dimensional well can just be realized by frequently making a trip
Eye TRAJECTORY CONTROL, and, extended distance bigger advantage more smooth with well track, to ensureing well track quality, improve and bore
Well speed and efficiency, the demand for meeting brill complex structural well are all significant.
Rotary steering system is divided into 2 kinds by its guidance mode:Backup drill-bit type (Push the Bit) and sensing drill bit
Formula (Point the Bit).Pushing type rotary steering system be in the case where there is one remote drill bit fulcrum, close proximity to
The position of drill bit, is produced after certain bias force, the contact borehole wall by biasing mechanism according to " power working method ", by the borehole wall
Reaction force makes drill bit produce side cutting power, so as to realize guiding.Pushing type rotary steering system compares stratum dependence
By force, especially soft formation guidance capability is restricted.Directional type rotary steering system is biasing mechanism according to " displacement work side
Formula " produces biasing, and drill bit is produced an inclination angle realization guiding relative to borehole axis.Directional type system is to curved
The fatigue life requirements of bent mandrel are higher, and to produce big build angle rate will overcome the rigidity of whole mandrel, and whole mandrel is easy
There is fatigue rupture phenomenon.
Traditional RSS build angle rates scope is 6-8 °/100ft, and when boring chance soft formation or slice with dissection, is made
Slope is lower, caliper expansion.The present invention proposes a kind of hybrid rotary steering system mentality of designing, and outer backup and interior sensing are revolved
The advantage for turning guidance system is combined so that the deflecting ability of system is not limited by stratum, and it is total to effectively improve system
Deflecting ability.
The content of the invention
In order to solve the above problems, the present invention provides a kind of high hybrid rotary steering system of build angle rate, and the rotation is led
Include upper centralizer, backup palm and drill bit to system, the upper centralizer, backup palm and drill bit contact with the borehole wall at 3 points,
By by overcoming pushing type rotary steering system guidance capability to be influenceed by bottom factor, forming hole curvature and completing deflecting work(
Energy；
Further, the rotary steering system also includes power transmission shaft and universal joint, and the power transmission shaft is connected by universal joint and bored
Head, the power transmission shaft is used to transmit the pressure of the drill and moment of torsion；
Further, the rotary steering system also include ball bearing, upper bearing (metal) and non-rotating set, the power transmission shaft with it is non-rotating
There is upper bearing (metal) and ball bearing, the upper bearing (metal) and ball bearing are respectively configured to provide radial and axial assembling between set；
Further, the backup palm covers into 120 degree of radial equipartitions along non-rotating；
Further, the bottom of the backup palm is provided with thrust plunger and pulling force plunger, the thrust plunger and pulling force plunger
120 degree of radial equipartitions are covered into along non-rotating；
Further, the pulling force plunger is connected with power transmission shaft by articulated form；
Further, a kind of control method of the hybrid rotary steering system of high build angle rate, methods described includes neutral pattern control
Method and system guided mode control method processed；
Further, the neutral mode control method is that system does not produce guide effect, center line of bit and drilling tool center line
Coincide, three thrust plungers produce identical side force, have the effect of righting drill bit, three as a near-bit centralizer
Individual pulling force plunger produces identical pulling force effect, keeps current pose angle holding drilling；
Further, the system guided mode control method is that the hydraulic coupling that three hydraulic circuits are produced is unequal, system production
Raw certain center displacement amount OO1', it can be produced and OO along thrust plunger section1' direction identical center displacement amount OO2', draw
Power plunger can produce thrust to backup palm, increase the side force of BHA, lifting system build angle rate.
Beneficial effects of the present invention are as follows：
1）Outer backup is combined with interior sensing, and system deflecting ability is greatly promoted；
2）Outer backup is shared with interior sensing hydraulic power system, and system design is simplified；
3）System has good adaptability to various stratum；
4）The bending mandrel of system is disconnected, drive mechanism is connected using universal joint, the force-bearing situation of mandrel is effectively improved,
Improve system lifetim and reliability.
Brief description of the drawings
Fig. 1 is existing rotary steering system fundamental diagram；
Fig. 2 is high build angle rate rotary steering system main assembly schematic diagram;
Fig. 3 is the neutral Schema control schematic diagram of high build angle rate rotary steering system;
Fig. 4 is high build angle rate rotary steering system guided mode control schematic diagram;
Fig. 5 is high build angle rate rotary steering system side force and drill bit inclination angle schematic diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.On the contrary, the present invention cover it is any be defined by the claims the present invention spirit and scope on do
Replacement, modification, equivalent method and scheme.Further, in order that the public has a better understanding to the present invention, below to this
It is detailed to describe some specific detail sections in the detailed description of invention.It is thin without these for a person skilled in the art
The description of section part can also understand the present invention completely.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as a limitation of the invention.
Below most preferred embodiment is enumerated for the present invention：
As Figure 1-Figure 5, the present invention provides a kind of high hybrid rotary steering system of build angle rate, the rotary steering system bag
Centralizer, backup palm and drill bit are included, the upper centralizer, backup palm and drill bit contact with the borehole wall at 3 points, by passing through
Overcome pushing type rotary steering system guidance capability to be influenceed by bottom factor, form hole curvature and complete deflecting function, it is described
Rotary steering system also includes power transmission shaft and universal joint, and the power transmission shaft connects drill bit by universal joint, and the power transmission shaft is used for
The pressure of the drill and moment of torsion are transmitted, the rotary steering system also includes ball bearing, upper bearing (metal) and non-rotating set, the power transmission shaft and non-rotation
There is upper bearing (metal) and ball bearing, the upper bearing (metal) and ball bearing are respectively configured to provide radial and axial assembling, institute between pivoted housing
State backup palm and cover into 120 degree of radial equipartitions along non-rotating, the bottom of the backup palm is provided with thrust plunger and pulling force plunger,
The thrust plunger and pulling force plunger cover into 120 degree of radial equipartitions along non-rotating, and the pulling force plunger passes through hinge with power transmission shaft
Connect form connection.
A kind of control method of the hybrid rotary steering system of high build angle rate, methods described includes neutral mode control method
With system guided mode control method, the neutral mode control method is that system does not produce guide effect, center line of bit and
Drilling tool center line coincides, and three thrust plungers produce identical side force, have righting brill as a near-bit centralizer
The effect of head, three pulling force plungers produce identical pulling force effect, keep current pose angle holding drilling, the system guided mode
Control method is that the hydraulic coupling that three hydraulic circuits are produced is unequal, and system produces certain center displacement amount OO1', along thrust
Plunger section can be produced and OO1' direction identical center displacement amount OO2', pulling force plunger can produce thrust work to backup palm
With the side force of increase BHA, lifting system build angle rate.
Fig. 2 is high build angle rate rotary steering system main assembly schematic diagram, by upper centralizer 1, pulling force plunger 22, backup bar
The palm 3, thrust plunger 4, drill bit 5, ball bearing 6, universal joint 7, upper bearing (metal) 8, power transmission shaft 9 and non-rotating set 10 are constituted.
The whipstock theory of guidance system is based on three-point circle method basic norm, upper centralizer 1, backup palm during real work
3 and drill bit composition contacted with the borehole wall 3 points, the deflecting function of the hole curvature completion system certain by being formed.System deflecting
The influence factor of performance is a lot, and the factor for having stratum also has the factor of BHA in itself, and pushing type rotary steering system is over the ground
Layer has certain dependence, there is good adaptability to hard formation, but to soft formation due to relying between thrust palm and the borehole wall
Reaction force so that the deflecting ability of whole system is restricted.Directional type guidance system is due to being displacement mode of operation, only
The drill bit inclination angle for needing generation certain can be achieved with the guide function of system, therefore less demanding can also realize of side force is led
To function.Outer backup is combined by the present invention with two kinds of guidance modes of interior sensing, proposes a kind of new hybrid rotary steering system
System design and control method, fully both advantages of fusion, effectively raise the deflecting ability of system.
Power transmission shaft 9 is used for transmitting the pressure of the drill and moment of torsion, is connected with drill bit 5 by universal joint 7, power transmission shaft 9 and non-rotating set 10
Between there is upper bearing (metal) 8 and ball bearing 6 to provide radial and axial assembling.Backup palm 3 covers 10 into 120 degree of footpaths along non-rotating
To uniform, the bottom of backup palm 3 is equipped with thrust plunger 4 and pulling force plunger 2, and thrust plunger 4 and pulling force plunger 2 are also along non-rotation
Pivoted housing 10 is into 120 degree of radial equipartitions.Thrust plunger 4 contacts the side for producing and making drill bit occur inclination angle by backup palm 3 with the borehole wall
Xiang Li, pulling force plunger 2 is connected with shaft portion by articulated form, using directional type operation principle, passes through inside bending
The connected main shaft of drill bit produces drill bit inclination angle, and the total build angle rate size of system is both pushing type and directional type sums.Will rotation
After main shaft 9 is connected with drill bit connected component using universal joint, because universal joint does not transmit moment of flexure, main axis stiffness pair can be effectively reduced
The influence of directional type deflecting ability.
Fig. 3 is when system is in neutral pattern
When system is in neutral pattern, system does not produce guide effect, and center line of bit and drilling tool center line coincide, and now three push away
Power plunger 4 produces identical side force, has the effect of righting drill bit, same three pulling force posts as a near-bit centralizer
Plug 2 also produces identical pulling force effect, keeps current pose angle holding drilling.This pattern is particularly suitable for the hold angle of extended reach well
Section.
Fig. 4 is system guided mode control schematic diagram, when system carries out guiding operation, the hydraulic pressure that three hydraulic circuits are produced
Power is no longer equal.Fig. 4 c illustrate thrust plunger schematic cross-section, system it is unequal acted on along hydraulic pressure under can produce
Certain center displacement amount OO1', because every set pulling force plunger and thrust plunger share a set of hydraulic system, therefore along thrust column
Plug section can be produced and OO1' direction identical center displacement amount OO2', while now pulling force plunger can be produced to backup palm
Thrust, increases the side force of BHA, also can have a certain degree of help to the lifting of system build angle rate.
Fig. 5 is system lateral power and drill bit inclination angle schematic diagram, and Fig. 5 e represent the drill bit inclination angle th1 produced by pushing type merely
And bit side force Fs1 ', Fig. 5 f are represented because directional type acts on the drill bit inclination angle th2 and bit side force Fs2 ' that produce, it is clear that
The total inclination angle of drill bit is the synthesis at the drill bit inclination angle that th1+th2 and side force Fs1 '+Fs2 ' is produced under guided mode, due to system
Design principle understands that the drill bit inclination direction produced under two kinds of operative conditions is consistent with the direction of side force, by reasonable in design
BHA size and the output of suitable side force, hybrid rotary steering system and simple directional type or pushing type rotate
Guidance system system is compared, and can significantly improve the deflecting ability of system.
One kind of embodiment described above, simply more preferably embodiment of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention all should be comprising within the scope of the present invention.
Claims (9)
1. a kind of hybrid rotary steering system of high build angle rate, it is characterised in that the rotary steering system include upper centralizer,
Backup palm and drill bit, the upper centralizer, backup palm and drill bit contact with the borehole wall at 3 points, by by overcoming pushing type to revolve
Turn guidance system guidance capability is influenceed by bottom factor, is formed hole curvature and is completed deflecting function.
2. rotary steering system according to claim 1, it is characterised in that the rotary steering system also includes power transmission shaft
And universal joint, the power transmission shaft is by universal joint connection drill bit, and the power transmission shaft is for transmitting the pressure of the drill and moment of torsion.
3. rotary steering system according to claim 2, it is characterised in that the rotary steering system also includes ball axle
Hold, upper bearing (metal) and non-rotating set, there is upper bearing (metal) and ball bearing, the upper bearing (metal) and ball between the power transmission shaft and non-rotating set
Bearing is respectively configured to provide radial and axial assembling.
4. rotary steering system according to claim 3, it is characterised in that the backup palm covers into 120 along non-rotating
Spend radial equipartition.
5. rotary steering system according to claim 1, it is characterised in that the bottom of the backup palm is provided with thrust column
Plug and pulling force plunger, the thrust plunger and pulling force plunger cover into 120 degree of radial equipartitions along non-rotating.
6. rotary steering system according to claim 1, it is characterised in that the pulling force plunger is with power transmission shaft by being hinged
Form is connected.
7. a kind of control method of the hybrid rotary steering system of high build angle rate, based on described in one of the claims 1-6
Rotary steering system, it is characterised in that methods described includes neutral mode control method and system guided mode control method.
8. control method according to claim 7, it is characterised in that the neutral mode control method is that system is not produced
Guide effect, center line of bit and drilling tool center line coincide, and three thrust plungers produce identical side force, near as one
Bit centralizer has the effect of righting drill bit, and three pulling force plungers produce identical pulling force effect, keep current pose hold angle
Drilling.
9. control method according to claim 7, it is characterised in that the system guided mode control method is three
The hydraulic coupling that hydraulic circuit is produced is unequal, and system produces certain center displacement amount OO1', it can be produced along thrust plunger section
Raw and OO1' direction identical center displacement amount OO2', pulling force plunger can produce thrust to backup palm, increase BHA
Side force, lifting system build angle rate.
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| CN201611169799.2A CN107060643B (en) | 2016-12-16 | 2016-12-16 | A kind of hybrid rotary steering system of high build angle rate and its control method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843417A (en) * | 2017-10-11 | 2018-03-27 | 中国科学院地质与地球物理研究所 | A kind of rotary steerable tool horizontally or diagonally function and performance testing device under state |
| CN107882507A (en) * | 2017-12-11 | 2018-04-06 | 西安石油大学 | A kind of high build angle rate rotary steering drilling tool |
| CN107939291A (en) * | 2017-11-14 | 2018-04-20 | 中国科学院地质与地球物理研究所 | A kind of rotary guiding device |
| CN108035677A (en) * | 2017-11-14 | 2018-05-15 | 中国科学院地质与地球物理研究所 | A kind of hybrid rotary guiding device |
| CN108930515A (en) * | 2018-07-23 | 2018-12-04 | 徐芝香 | Torticollis rotary steerable tool |
| CN108979534A (en) * | 2018-07-24 | 2018-12-11 | 徐芝香 | Torticollis camcylinder pushing type rotary steerable tool |
| CN109025821A (en) * | 2018-08-10 | 2018-12-18 | 西安石油大学 | A kind of high build angle rate rotary steering drilling tool of mixed type |
| CN109098660A (en) * | 2018-08-10 | 2018-12-28 | 西安石油大学 | A kind of modulation pushing type and eccentric hoop directional type mixed type guide drilling tool |
| CN109209221A (en) * | 2018-11-14 | 2019-01-15 | 中国铁建重工集团有限公司 | A kind of down-hole hammer equipment and its impact guidance system |
| WO2019095524A1 (en) * | 2017-11-14 | 2019-05-23 | 中国科学院地质与地球物理研究所 | Anti-rotation device of non-rotating sleeve and rotation guide device |
| WO2019095526A1 (en) * | 2017-11-14 | 2019-05-23 | 中国科学院地质与地球物理研究所 | Rotary steering device based on radial driving force |
| CN110080682A (en) * | 2019-05-07 | 2019-08-02 | 中国科学院地质与地球物理研究所 | A kind of rotary steerable tool and transmission device |
| CN110761712A (en) * | 2019-10-12 | 2020-02-07 | 中国海洋石油集团有限公司 | Deflecting drill bit for improving deflecting performance of flexible drilling tool |
| CN111173452A (en) * | 2020-02-21 | 2020-05-19 | 万晓跃 | Static offset rotary steering drilling tool with sandwich cylinder structure |
| CN112031653A (en) * | 2019-06-06 | 2020-12-04 | 万晓跃 | Easily-deflecting hybrid rotary steering drilling system |
| WO2020244629A1 (en) * | 2019-06-06 | 2020-12-10 | 万晓跃 | Rotary guide device |
| WO2020244665A1 (en) * | 2019-06-06 | 2020-12-10 | 万晓跃 | Rotary steering well-drilling tool based on bit pressure steering transmission structure |
| CN113404429A (en) * | 2021-07-19 | 2021-09-17 | 万晓跃 | Composite guiding drilling tool and method |
| CN114233194A (en) * | 2021-12-02 | 2022-03-25 | 中煤科工集团西安研究院有限公司 | Coal mine underground split type hydraulic deflecting drilling tool combination and drilling method |
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Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843417A (en) * | 2017-10-11 | 2018-03-27 | 中国科学院地质与地球物理研究所 | A kind of rotary steerable tool horizontally or diagonally function and performance testing device under state |
| JP2020502394A (en) * | 2017-11-14 | 2020-01-23 | インスティチュート オブ ジオロジー アンド ジオフィジックス， チャイニーズ アカデミー オブ サイエンシズＩｎｓｔｉｔｕｔｅ ｏｆ Ｇｅｏｌｏｇｙ ａｎｄ Ｇｅｏｐｈｙｓｉｃｓ， Ｃｈｉｎｅｓｅ Ａｃａｄｅｍｙ ｏｆ Ｓｃｉｅｎｃｅｓ | Rotation guidance device based on radial driving force |
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