CN105363574A - Oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus - Google Patents
Oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus Download PDFInfo
- Publication number
- CN105363574A CN105363574A CN201510927207.8A CN201510927207A CN105363574A CN 105363574 A CN105363574 A CN 105363574A CN 201510927207 A CN201510927207 A CN 201510927207A CN 105363574 A CN105363574 A CN 105363574A
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- China
- Prior art keywords
- sand
- pipe
- tank
- separating
- tank body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000007788 liquid Substances 0.000 title claims abstract description 30
- 238000005488 sandblasting Methods 0.000 title abstract 4
- 239000004576 sand Substances 0.000 claims abstract description 86
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 10
- 239000013049 sediment Substances 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 2
- 230000003139 buffering effect Effects 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000406668 Loxodonta cyclotis Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses an oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus, which comprises a separating device and a sand grain circulating device which is mounted under the separating device for matching use, wherein the separating device consists of a separating tank body, a tangent inlet pipe, a casing pipe, an overflowing pipe, a sand washing pipe and a sand discharging device; the tangent inlet pipe, the casing pipe, the overflowing pipe, the sand washing pipe and the sand discharging device are arranged inside the separating tank body; the circulating device mainly consists of a sand storage tank, a screw pump sand washing pipe line assembly and a variable frequency motor; the sand storage tank is connected with the screw pump sand washing pipe line assembly and the variable frequency motor; flow-back liquid tangentially enters from the tangent inlet pipe; after entering an acceleration gap between the separating tank and the casing pipe by rotational flow of a buffering cavity of the separating tank, the tangent speed and the radial speed of the liquid are rapidly increased; sand grains are thrown to the inner wall of the separating tank under the effect of centrifugal force, accumulate and slide to the tank bottom along the tank wall, so that the sand grains deposit on the tank bottom; the separated sand grains are collected by the sand storage tank and further conveyed by a screw pump to a sand mixing vehicle upon control of the variable frequency motor for cyclic utilization. According to the oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus, the efficient separation of hydraulic sand blasting perforation flow-back liquid is realized under double effects of inertia force and centrifugal force.
Description
Technical field
The invention belongs to a kind of solid-liquid separation device, particularly a kind of oil field hydraulic jet perforation returns sediment outflow liquid separating cycle equipment.
Technical background
In oil energy development process, fracturing work is one of Main Means of reconstruction of oil and gas pools volume increase, is therefore generally adopted by each elephant.Wellfracturing relates to hydraulic jet perforation and the combination operation process such as fracturing, open flow.After the operation of abrasive perforating mouth, a large amount of high sand waste liquid that contains can be produced and return to ground, become one of primary pollution source of the current water body in oil field.The top priority of process for treating waste liquor is returned discharge opeing to height containing sand exactly and is carried out sand liquid separating treatment.Current domestic each elephant realize hydraulic perforating return sediment outflow liquid be separated main method be utilize cyclone desanding.
Although utilize cyclone desanding volume little, disposal ability is also little, and its disposal ability is directly proportional to its full diameter.Huge discharge, the high hydraulic jet perforation containing sand are returned and needs several units to superpose when sediment outflow liquid processes to use, considerably increase cost.Reply high-silt content water power abrasive perforating returns sediment outflow liquid, its erosion phenomenon especially severe.Moreover its volume is little, does not have buffer capacity to flow oscillation, cause desanding efficiency unstable.
Summary of the invention
The object of the invention is to overcome existing technological deficiency, provide a kind of oil field hydraulic jet perforation to return sediment outflow liquid separation equipment, can to large discharge (3.2m
3/ min), the high discharge opeing of returning containing sand realizes continuous quick separating process; Its volume is large, reduces application cost; The structural design of its uniqueness, greatly reduces the erosion to equipment in separation process; Its separation principle adopts inertia force and centrifugal force dual force, efficiently can be separated sand liquid; The sand grains be separated can continue to recycle in hydraulic jet perforation, achieves environmental protection operation.
In order to achieve the above object, technical scheme of the present invention is:
A kind of oil field hydraulic jet perforation returns sediment outflow liquid separating cycle equipment, comprises separator and is installed on matching used sand grains EGR below separator;
Described separator comprises separation tank body 1, and the tank skin of the cushion chamber 2 on separation tank body 1 top offers tangential inlet pipe 3, and the tank deck axle center being separated tank body 1 is provided with the overflow pipe 14 be threaded, and overflow pipe 14 top is connected with flow controller 15;
The sleeve pipe 4 being separated tank body 1 and its inside is formed and accelerates gap 5, and sleeve pipe 4 top is connected with overflow pipe 14, and sleeve pipe 4 bottom adopts locator 13 to fix, and locator 13 is fixed with sand clean out pipe 6 by retainer ring 7;
Being separated tank body 1 bottom is sand setting chamber 12, sand setting chamber 12 is communicated with bypass pipe 9, bypass pipe 9 is provided with blocking rotary type level-sensing device 8;
Be separated tank body 1 bottom welding and have sediment outflow pipe 11, sediment outflow pipe 11 bottom is connected and installed ecp switch 10; Sediment outflow pipe 11 is connected with sand storage tank 16;
Described sand grains EGR comprises sand storage tank 16, is provided with sand clean out pipe 19 in sand storage tank 16, and sand clean out pipe 19 is connected with the sand washing pump of outside by sand washing pump interface 18, and sand storage tank 16 bottom is communicated with the interface of screw pump 17, and screw pump 17 is driven by variable-frequency motor 22.
Outstanding advantages of the present invention is:
(1) the present invention adopts the efficient separating solids sand grains of dual force, i.e. centrifugal force and inertia force.Return discharge opeing to be entered by cushion chamber eddy flow and accelerate behind wide gap, liquid tangential velocity and axial velocity increase rapidly.Sand grains is thrown toward knockout drum inwall under the influence of centrifugal force, and numerous sand grains is assembled and slided at the bottom of tank along tank skin, is sunken at the bottom of tank.Reduced velocity flow after accelerated liquid disengaging accelerated passage, and be subject to the jacking of cavity of resorption liquid, flow velocity reduces greatly, and solid sand grains, under the effect of inertia force, rushes at bottom knockout drum, gathers sedimentation, greatly reduces the erosion to equipment in separation process.
(2) blocking rotary type level-sensing device Real-Time Monitoring desilting amount, unanimously controls sediment outflow pipe with ecp switch, realizes automatic sand draining.Sand clean out pipe has ensured that sand setting is discharged smoothly.
(3) sand grains of separator well is sent into fracturing blender truck continuation through EGR and is participated in dosing, achieves Dynamic Separation, the feature recycled.
The present invention can meet huge discharge (3.2m
3/ min), the high hydraulic jet perforation containing sand returns the unique advantages such as the efficient sand-liquid separation fast of sediment outflow liquid, its structure is simple, safety coefficient is high.Be separated in the process of recycling at whole sand liquid, sand grains without the need to landing, environmental protection more.
Accompanying drawing explanation
Fig. 1 is the axial sectional view of separator of the present invention.
Fig. 2 is sand grains EGR schematic diagram of the present invention.
Fig. 3 is operating diagram of the present invention.
Detailed description of the invention
Do to carry out step detailed description to the present invention below in conjunction with embodiment.
As illustrated in fig. 1 and 2, a kind of oil field hydraulic jet perforation returns sediment outflow liquid separating cycle equipment, comprises separator and is installed on matching used sand grains EGR below separator;
Described separator comprises separation tank body 1, and the tank skin of the cushion chamber 2 on separation tank body 1 top offers tangential inlet pipe 3, and the tank deck axle center being separated tank body 1 is provided with the overflow pipe 14 be threaded, and there is flow controller 15 on overflow pipe 14 top by Flange joint;
The sleeve pipe 4 being separated tank body 1 and its inside is formed and accelerates gap 5, and sleeve pipe 4 top and overflow pipe 14 connect by being weldingly connected, and sleeve pipe 4 bottom adopts locator 13 to fix, and locator 13 is welded with sand clean out pipe 6 by retainer ring 7;
Being separated tank body 1 bottom is sand setting chamber 12, sand setting chamber 12 is communicated with bypass pipe 9, bypass pipe 9 is provided with blocking rotary type level-sensing device 8;
Be separated tank body 1 bottom welding and have sediment outflow pipe 11, sediment outflow pipe 11 bottom adopts Flange joint to install ecp switch 10; Sediment outflow pipe 11 is connected with sand storage tank 16;
Described sand grains EGR comprises sand storage tank 16, sand clean out pipe 19 is provided with in sand storage tank 16, sand clean out pipe 19 is connected with the pump machine of outside by sand washing pump interface 18, sand storage tank 16 bottom is communicated with the interface of screw pump 17, screw pump 17 is driven by variable-frequency motor 22, screw pump 17 and variable-frequency motor 22 are placed on base 23, and bracing frame 21 is also arranged on base 23 for supporting sand storage tank 16.
With reference to Fig. 1, described separation tank body 1 is the cylinder knockout drum of 0.785 ㎡ * 1970 ㎜, adopts ellipsoidal head up and down, total measurement (volume) 1.5m
3, meeting discharge capacity is 3.2m
3the hydraulic jet perforation of/min returns the complete open flow operating mode of discharge opeing, and bearing capacity is 15Mpa, and safety coefficient is greater than 1.5, safe and reliable.
Operation principle of the present invention is:
Operationally, as shown in Figure 3, adopt the mode stacked, namely sand grains EGR is installed on the below being separated tank body 1, is separated tank body 1 slant setting and adopts supporting mechanism 24 to fix.
After device start, return discharge opeing and tangentially enter from tangential inlet pipe 3, enter the acceleration gap 5 be separated between tank body 1 and sleeve pipe 4 through cushion chamber 2 eddy flow, liquid tangential velocity and axial velocity are accelerated rapidly.Sand grains is thrown toward under the influence of centrifugal force and is separated tank body 1 inwall, and numerous sand grains is assembled and slided at the bottom of tank along tank skin, is sunken at the bottom of tank.After liquid departs from gap, reduced velocity flow, and the jacking being subject to cavity of resorption liquid, flow velocity reduces greatly, and solid sand grains, under the effect of inertia force, rushes at sand setting chamber 12, gathers sedimentation.Clear liquid is discharged by overflow pipe 14 overflow.Sediment outflow pipe 11 realizes automatic sand draining under blocking rotary type level-sensing device 8 and ecp switch 10 control automatically.
Sand grains EGR is installed on below knockout drum, and sand storage tank 16 collects the sand grains of separator well.The built-in sand clean out pipe 19 of described sand storage tank is connected with outside sand washing pump, utilizes extraneous clear liquid to mix with sand grains.Sand grains, under the control of variable-frequency motor 22, is delivered to fracturing blender truck, is entered and recycle by screw pump 17 further.
The parts that the present invention does not describe in detail belong to common structure, do not describe in detail one by one here.
Claims (1)
1. oil field hydraulic jet perforation returns a sediment outflow liquid separating cycle equipment, comprises separator and is installed on matching used sand grains EGR below separator;
Described separator comprises separation tank body (1), the tank skin of the cushion chamber (2) on separation tank body (1) top offers tangential inlet pipe (3), the tank deck axle center being separated tank body (1) is provided with the overflow pipe (14) be threaded, and overflow pipe (14) top is connected with flow controller (15);
The sleeve pipe (4) being separated tank body (1) and its inside is formed and accelerates gap (5), sleeve pipe (4) top is connected with overflow pipe (14), sleeve pipe (4) bottom adopts locator (13) to fix, and locator (13) is fixed with sand clean out pipe (6) by retainer ring (7);
Being separated tank body (1) bottom is sand setting chamber (12), sand setting chamber (12) is communicated with bypass pipe (9), bypass pipe (9) is provided with blocking rotary type level-sensing device (8);
Be separated tank body (1) bottom welding and have sediment outflow pipe (11), sediment outflow pipe (11) bottom is connected and installed ecp switch (10); Sediment outflow pipe (11) is connected with sand storage tank (16);
Described sand grains EGR comprises sand storage tank (16), sand clean out pipe (19) is provided with in sand storage tank (16), sand clean out pipe (19) is connected with the sand washing pump of outside by sand washing pump interface (18), sand storage tank 16 bottom is communicated with the interface of screw pump (17), and screw pump (17) is driven by variable-frequency motor (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927207.8A CN105363574A (en) | 2015-12-12 | 2015-12-12 | Oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510927207.8A CN105363574A (en) | 2015-12-12 | 2015-12-12 | Oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105363574A true CN105363574A (en) | 2016-03-02 |
Family
ID=55366486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510927207.8A Pending CN105363574A (en) | 2015-12-12 | 2015-12-12 | Oil field hydraulic sand blasting perforation flow-back liquid separating and circulating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105363574A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138878A (en) * | 2019-06-26 | 2020-12-29 | 中国海洋石油集团有限公司 | Spiral centrifugal separation device for mixed fluid |
| CN113503151A (en) * | 2021-08-06 | 2021-10-15 | 四川凌耘建科技有限公司 | Sand removal and gas production integrated system for tight gas well wellhead and process method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234310Y (en) * | 1995-03-09 | 1996-09-04 | 克洛德拉瓦尔公司 | Apparatus for removing solid particles from fluid |
| JP2003001143A (en) * | 2001-06-18 | 2003-01-07 | Taiho Ind Co Ltd | Revolving separator and method for separating impurity from liquid for treatment, device for purifying accumulated liquid within tank and the method therefor |
| CN2645775Y (en) * | 2003-08-13 | 2004-10-06 | 中国石化胜利油田有限公司胜利采油厂 | Cyclone for separating and cleaning oil-containing polluted sand |
| CN101961687A (en) * | 2009-07-24 | 2011-02-02 | 上海金匙环保科技有限公司 | Power cyclone separator |
| CN102950064A (en) * | 2012-09-28 | 2013-03-06 | 刘宇婧 | Energy-saving dusting machine |
| WO2013103305A1 (en) * | 2012-01-03 | 2013-07-11 | Dwc As | Dynamic particle separator |
| CN203582619U (en) * | 2013-12-07 | 2014-05-07 | 四川省博仁达石油科技有限公司 | Fracturing flow-back liquid filtration treatment device of skid-type boron treatment device |
| CN104368188A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Sand removing process for oilfield fracturing flowback fluid |
| CN104514524A (en) * | 2014-12-23 | 2015-04-15 | 西安石油大学 | Spiral sand remover |
| CN205199756U (en) * | 2015-12-12 | 2016-05-04 | 西安石油大学 | Oil field water conservancy sandblast perforation returns sediment outflow liquid solid -liquid separation circulating equipment |
-
2015
- 2015-12-12 CN CN201510927207.8A patent/CN105363574A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234310Y (en) * | 1995-03-09 | 1996-09-04 | 克洛德拉瓦尔公司 | Apparatus for removing solid particles from fluid |
| JP2003001143A (en) * | 2001-06-18 | 2003-01-07 | Taiho Ind Co Ltd | Revolving separator and method for separating impurity from liquid for treatment, device for purifying accumulated liquid within tank and the method therefor |
| CN2645775Y (en) * | 2003-08-13 | 2004-10-06 | 中国石化胜利油田有限公司胜利采油厂 | Cyclone for separating and cleaning oil-containing polluted sand |
| CN101961687A (en) * | 2009-07-24 | 2011-02-02 | 上海金匙环保科技有限公司 | Power cyclone separator |
| WO2013103305A1 (en) * | 2012-01-03 | 2013-07-11 | Dwc As | Dynamic particle separator |
| CN102950064A (en) * | 2012-09-28 | 2013-03-06 | 刘宇婧 | Energy-saving dusting machine |
| CN104368188A (en) * | 2013-08-15 | 2015-02-25 | 中国石油天然气股份有限公司 | Sand removing process for oilfield fracturing flowback fluid |
| CN203582619U (en) * | 2013-12-07 | 2014-05-07 | 四川省博仁达石油科技有限公司 | Fracturing flow-back liquid filtration treatment device of skid-type boron treatment device |
| CN104514524A (en) * | 2014-12-23 | 2015-04-15 | 西安石油大学 | Spiral sand remover |
| CN205199756U (en) * | 2015-12-12 | 2016-05-04 | 西安石油大学 | Oil field water conservancy sandblast perforation returns sediment outflow liquid solid -liquid separation circulating equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138878A (en) * | 2019-06-26 | 2020-12-29 | 中国海洋石油集团有限公司 | Spiral centrifugal separation device for mixed fluid |
| CN113503151A (en) * | 2021-08-06 | 2021-10-15 | 四川凌耘建科技有限公司 | Sand removal and gas production integrated system for tight gas well wellhead and process method thereof |
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| PB01 | Publication | ||
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Application publication date: 20160302 |