CN114941510B - Circulating blocking-removing sand-fishing process system - Google Patents
Circulating blocking-removing sand-fishing process system Download PDFInfo
- Publication number
- CN114941510B CN114941510B CN202210692257.2A CN202210692257A CN114941510B CN 114941510 B CN114941510 B CN 114941510B CN 202210692257 A CN202210692257 A CN 202210692257A CN 114941510 B CN114941510 B CN 114941510B
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- Prior art keywords
- sand
- pump
- fishing
- circulating
- pipe
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000004576 sand Substances 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 125000004122 cyclic group Chemical group 0.000 claims 5
- 238000005488 sandblasting Methods 0.000 claims 2
- 238000011010 flushing procedure Methods 0.000 abstract description 8
- 239000003208 petroleum Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 4
- 239000013049 sediment Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 15
- 238000005507 spraying Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Abstract
The invention discloses a circulating blocking-removing sand-fishing process system which comprises a sand-fishing adjusting assembly, a serial pump set and a liquid inlet assembly, wherein the serial pump set is arranged in the sand-fishing adjusting assembly, and the liquid inlet assembly is arranged at the upper end of the sand-fishing adjusting assembly; the sand fishing adjusting component comprises a sleeve and a sand sucking pipe, the sand sucking pipe is arranged in the sleeve, a connecting seat is arranged at the upper end of the sleeve, a sand sucking opening is arranged at one end, far away from the connecting seat, of the sleeve, and a sand sucking nozzle is arranged at one end, far away from the connecting seat, of the sand sucking pipe; the serial pump group comprises a circulating pump, a lifting pump and a sand sucking pump. The invention belongs to the technical field of petroleum exploitation, and particularly provides a circulating unblocking sand-fishing process system which is used for effectively solving the problems of sand discharge of a horizontal well, a stratum defect serious lost well and an ultra-deep well, and adopts a flushing fluid half-way circulation to drive a series pump set to suck underground sediment out of the ground, and the sand sucking process always generates negative pressure, so that the oil layer is unblocked and the yield is increased.
Description
Technical Field
The invention belongs to the technical field of petroleum exploitation, and particularly relates to a circulating blocking removal sand fishing process system.
Background
Petroleum extraction refers to the act of excavating and extracting petroleum where it is stored. In the process of petroleum exploitation, oil gas flows into the bottom of a well from a reservoir, and rises to a driving mode of a wellhead from the bottom of the well.
The conventional circulating sand flushing construction for sand discharge of the existing horizontal well has the following problems: 1. the sand washing process is easy to clamp the pipe column to cause underground accidents; 2. circulating well flushing liquid in the sand flushing process to cause the oil layer to flood the crude oil production and reduce the yield; 3. and part of stratum sand is washed back to the stratum by the well washing liquid in the sand washing process, so that an oil layer is temporarily blocked, and crude oil yield is reduced.
The existing mechanical oil well sand fishing process has the defects of short sand fishing distance at one time, high operation cost, and large difficulty in sand fishing construction when entering a deep horizontal well section, and can be completed only by taking out and taking down a plurality of pipe columns.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a circulating blocking-removing sand-fishing process system which can effectively solve the problems of serious leakage of horizontal wells and stratum defects and sand production of ultra-deep wells, adopts a flushing fluid half-way circulation to drive a series pump set to suck underground sediment out of the ground, and always generates negative pressure in the sand-sucking process, thereby having blocking-removing and yield-increasing effects on an oil layer.
The technical scheme adopted by the invention is as follows: the circulating unblocking sand fishing process system comprises a sand fishing adjusting assembly, a serial pump set and a liquid inlet assembly, wherein the serial pump set is arranged in the sand fishing adjusting assembly, and the liquid inlet assembly is arranged at the upper end of the sand fishing adjusting assembly; the sand fishing adjusting component comprises a sleeve and a sand sucking pipe, the sand sucking pipe is arranged in the sleeve, a connecting seat is arranged at the upper end of the sleeve, a sand sucking opening is arranged at one end, far away from the connecting seat, of the sleeve, and a sand sucking nozzle is arranged at one end, far away from the connecting seat, of the sand sucking pipe; the serial pump set comprises a circulating pump, a lifting pump and a sand sucking pump, and the circulating pump, the lifting pump and the sand sucking pump are sequentially arranged in the sand sucking pipe from top to bottom; the liquid inlet assembly comprises a pump truck, a reversing valve, an oil pipe and a positive circulation valve, wherein the oil pipe is arranged at the upper end of the connecting seat, the positive circulation valve is arranged at the upper end of the oil pipe, the reversing valve is arranged at the upper end of the pump truck, and a positive circulation pipeline is arranged between the reversing valve and the positive circulation valve.
Preferably, the liquid inlet assembly further comprises a side circulation valve, and a side circulation pipeline is connected between the side circulation valve and the reversing valve.
Preferably, the outside of the sand sucking pipe is provided with a balance valve and a packer, and the packer is arranged at the upper end of the balance valve.
Preferably, a sand spraying nozzle is arranged on the outer side of the sand sucking pipe, and the sand spraying nozzle is arranged at the upper end of the packer.
Preferably, two groups of water nozzles are symmetrically arranged on the outer side of the sand sucking pipe, and two groups of water nozzles which are symmetrically arranged are arranged on the outer side of the sand sucking pipe.
Preferably, the outside of connecting seat is equipped with circulation exit tube, the pollution jar of external world is connected to the one end of circulation exit tube.
Preferably, a control valve is arranged on the outer side of the circulating outlet pipe.
Preferably, the connecting seat is communicated and arranged between the oil pipe and the sleeve.
The beneficial effects obtained by the invention by adopting the structure are as follows: according to the circulating unblocking sand fishing process system, when a single pipe column is connected, the reversing valve can close the positive circulating pipeline and open the lateral circulating pipeline in a state of not stopping the pump, so that the purpose of replacing the single pipe column without stopping the pump can be realized, and the phenomenon of pump clamping and pipe column clamping caused by the fact that the single pipe column is connected and stopped is avoided; the balance valve and the packer not only can block the well-flushing liquid from entering the stratum, but also can adjust the underground negative pressure value to prevent suction from inducing blowout, and the sand sucking nozzle is used for adjusting the mixing ratio of the liquid and sand.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a circulating unblocking sand fishing process system according to the scheme;
FIG. 2 is a schematic diagram of a side circulation pipeline in the circulating unblocking sand fishing process system according to the scheme;
fig. 3 is a schematic diagram of the circulating unblocking sand fishing process system without stopping a pump when a single pipe column is replaced.
Wherein, 1, a sand fishing adjusting component, 2, a serial pump group, 3, a liquid inlet component, 4, a sleeve, 5, a sand sucking pipe, 6, a connecting seat, 7, a sand sucking port, 8, a sand sucking nozzle, 9, a circulating pump, 10, a lifting pump, 11, a sand sucking pump, 12 and a pump truck, 13, reversing valves, 14, oil pipes, 15, positive circulation valves, 16, positive circulation pipelines, 17, side circulation valves, 18, side circulation pipelines, 19, balance valves, 20, packers, 21, sand nozzles, 22, circulation pipes, 23 and control valves.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, the circulating unblocking sand fishing process system comprises a sand fishing adjusting assembly 1, a serial pump set 2 and a liquid inlet assembly 3, wherein the serial pump set 2 is arranged in the sand fishing adjusting assembly 1, and the liquid inlet assembly 3 is arranged at the upper end of the sand fishing adjusting assembly 1; the sand fishing adjusting assembly 1 comprises a sleeve 4 and a sand sucking pipe 5, the sand sucking pipe 5 is arranged in the sleeve 4, a connecting seat 6 is arranged at the upper end of the sleeve 4, a sand sucking opening 7 is arranged at one end, far away from the connecting seat 6, of the sleeve 4, and a sand sucking opening 8 is arranged at one end, far away from the connecting seat 6, of the sand sucking pipe 5; the serial pump set 2 comprises a circulating pump 9, a lifting pump 10 and a sand sucking pump 11, wherein the circulating pump 9, the lifting pump 10 and the sand sucking pump 11 are sequentially arranged in the sand sucking pipe 5 from top to bottom; the liquid inlet assembly 3 comprises a pump truck 12, a reversing valve 13, an oil pipe 14 and a positive circulation valve 15, wherein the oil pipe 14 is arranged at the upper end of the connecting seat 6, the positive circulation valve 15 is arranged at the upper end of the oil pipe 14, the connecting seat 6 is communicated between the oil pipe 14 and the sleeve 4, the reversing valve 13 is arranged at the upper end of the pump truck 12, and a positive circulation pipeline 16 is arranged between the reversing valve 13 and the positive circulation valve 15.
The liquid inlet assembly 3 further comprises a side circulation valve 17, and a side circulation pipeline 18 is connected between the side circulation valve 17 and the reversing valve 13.
The outside of sand sucking pipe 5 is equipped with balanced valve 19 and packer 20, packer 20 is located the upper end of balanced valve 19.
The outside of the sand sucking pipe 5 is provided with a sand spraying nozzle 21, and the sand spraying nozzle 21 is arranged at the upper end of the packer 20.
Two groups of the sand spraying nozzles 21 are symmetrically arranged on the outer side of the sand sucking pipe 5, and two groups of the symmetrically arranged water spraying nozzles are arranged on the outer side of the sand sucking pipe 5.
The outside of connecting seat 6 is equipped with circulation exit tube 22, the outside of circulation exit tube 22 is equipped with control valve 23, the pollution jar of external world is connected to the one end of circulation exit tube 22.
When the sand fishing adjusting assembly is particularly used, the sand fishing adjusting assembly 1 is placed on a sand surface, a pump truck 12 enables well flushing liquid to enter the circulating pump 9 through a reversing valve 13, a positive circulating valve 15 and an oil pipe 14, and the circulating pump 9, the lifting pump 10 and the sand sucking pump 11 are in circulating series pump set operation; the sand in the pit enters the sleeve 4 and the oil pipe 14 through the sand sucking port 7 and the sand sucking pipe 5 to circulate out of the wellhead, in the using process, the balance valve 19 and the packer 20 block the flushing fluid from entering the stratum and adjust the negative pressure value in the pit to prevent suction from inducing blowout, the sand sucking nozzle 21 is used for adjusting the mixing ratio of the fluid and the sand, in order to avoid the phenomenon of pump clamping and pipe column clamping caused by single pipe column stopping, as shown in fig. 2, when the single pipe column is connected, the reversing valve 13 can close the positive circulation pipeline 16 and simultaneously open the side circulation pipeline 18 in a state of not stopping the pump, and the plug connector of the side circulation pipeline 18 is connected with the side circulation valve 17 in advance, so that the aim of replacing the single pipe column without stopping the pump can be realized.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (6)
1. The circulating blocking-removing sand-fishing process system is characterized in that: the device comprises a sand fishing adjusting assembly, a serial pump set and a liquid inlet assembly, wherein the serial pump set is arranged in the sand fishing adjusting assembly, and the liquid inlet assembly is arranged at the upper end of the sand fishing adjusting assembly; the sand fishing adjusting component comprises a sleeve and a sand sucking pipe, the sand sucking pipe is arranged in the sleeve, a connecting seat is arranged at the upper end of the sleeve, a sand sucking opening is arranged at one end, far away from the connecting seat, of the sleeve, and a sand sucking nozzle is arranged at one end, far away from the connecting seat, of the sand sucking pipe; the serial pump set comprises a circulating pump, a lifting pump and a sand sucking pump, and the circulating pump, the lifting pump and the sand sucking pump are sequentially arranged in the sand sucking pipe from top to bottom; the liquid inlet component comprises a pump truck, a reversing valve, an oil pipe and a positive circulation valve, wherein the oil pipe is arranged at the upper end of the connecting seat, the positive circulation valve is arranged at the upper end of the oil pipe, the reversing valve is arranged at the upper end of the pump truck, and a positive circulation pipeline is arranged between the reversing valve and the positive circulation valve;
the liquid inlet assembly further comprises a side circulating valve, and a side circulating pipeline is connected between the side circulating valve and the reversing valve;
the outside of inhale the sand pipe is equipped with balanced valve and packer, the upper end of balanced valve is located to the packer.
2. The cyclic unblocking and sand fishing process system according to claim 1, wherein: the outside of inhale the sand pipe is equipped with the sandblast mouth, the upper end of packer is located to the sandblast mouth.
3. The cyclic unblocking and sand fishing process system according to claim 2, wherein: two groups of sand blasting nozzles are symmetrically arranged on the outer side of the sand sucking pipe, and two groups of sand blasting nozzles which are symmetrically arranged are arranged on the outer side of the sand sucking pipe.
4. The cyclic unblocking and sand fishing process system according to claim 1, wherein: the outside of connecting seat is equipped with the circulation exit tube, the pollution jar of external world is connected to the one end of circulation exit tube.
5. The cyclic unblocking and sand fishing process system according to claim 4, wherein: and a control valve is arranged on the outer side of the circulating outlet pipe.
6. The cyclic unblocking and sand fishing process system according to claim 1, wherein: the connecting seat is communicated between the oil pipe and the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210692257.2A CN114941510B (en) | 2022-06-17 | 2022-06-17 | Circulating blocking-removing sand-fishing process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210692257.2A CN114941510B (en) | 2022-06-17 | 2022-06-17 | Circulating blocking-removing sand-fishing process system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114941510A CN114941510A (en) | 2022-08-26 |
| CN114941510B true CN114941510B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210692257.2A Active CN114941510B (en) | 2022-06-17 | 2022-06-17 | Circulating blocking-removing sand-fishing process system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116717203B (en) * | 2023-08-09 | 2023-10-10 | 海塔石油科技有限公司 | Horizontal well sand discharging device and use method |
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| CN208502990U (en) * | 2018-06-11 | 2019-02-15 | 中国石油化工股份有限公司 | A kind of submersible electric pump hanging basket |
| CN210564418U (en) * | 2019-07-05 | 2020-05-19 | 中国石油化工股份有限公司 | Sand washing pipe column |
| CN210918933U (en) * | 2019-08-05 | 2020-07-03 | 中国石油化工股份有限公司 | Reverse circulation positive sand washing pipe column |
| CN110566144A (en) * | 2019-09-27 | 2019-12-13 | 中石化石油工程技术服务有限公司 | Leakage-proof sand washing method and sand washing pipe column |
| CN112647872A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Underground sand suction device |
| CN211230307U (en) * | 2019-11-05 | 2020-08-11 | 中国石油化工股份有限公司 | Continuous sand washing device and special continuous sand washing adapter |
| CN211950394U (en) * | 2019-11-08 | 2020-11-17 | 北京宝沃石油技术有限责任公司 | Sand-discharging oil-production jet pump |
| CN210858625U (en) * | 2019-11-26 | 2020-06-26 | 秦红星 | Workover bailing equipment with clearance function |
| CN114075933A (en) * | 2020-08-13 | 2022-02-22 | 中国石油化工股份有限公司 | Sand washing and filling pipe column system and sand washing and filling process |
| CN112031683A (en) * | 2020-08-19 | 2020-12-04 | 中国海洋石油集团有限公司 | Sand washing and sand carrying lifting production integrated process pipe column and method thereof |
| CN112576211A (en) * | 2020-12-29 | 2021-03-30 | 中国地质调查局水文地质环境地质调查中心 | Novel shaft bottom desilting device |
| CN113279710A (en) * | 2021-06-09 | 2021-08-20 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
| CN113882819A (en) * | 2021-11-02 | 2022-01-04 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
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