CN202882862U - Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved - Google Patents
Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved Download PDFInfo
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- CN202882862U CN202882862U CN 201220547688 CN201220547688U CN202882862U CN 202882862 U CN202882862 U CN 202882862U CN 201220547688 CN201220547688 CN 201220547688 CN 201220547688 U CN201220547688 U CN 201220547688U CN 202882862 U CN202882862 U CN 202882862U
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Abstract
The utility model discloses an underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved. Through the underground sand prevention tubular column capable of enabling the well backwashing and the sand washing and the high-pressure gravel packing to be achieved, the operation procedures of oil-water well sand prevention construction can be reduced, and construction cost of sand prevention can be reduced. The sand prevention tubular column comprises a top packer, a signal screen pipe and a sand filter pipe. A filling port is formed in the top packer. The top packer, the signal screen pipe and the sand filter pipe are connected through an oil pipe in sequence. A bottom sand washing machine is connected below the sand filter pipe. A central pipe of the top packer is connected with a washing pipe. A lower joint of the top packer is connected with the signal screen pipe. The washing pipe penetrates through the signal screen pipe and the sand filter pipe and then is inserted into the bottom sand washing machine to form a sand washing inner channel. The high pressure gravel packing is carried out by the utilization of the filling port of the top packer. The sand prevention tubular column can wash sand and drill down simultaneously, and then the sand prevention tubular column can be guaranteed to be descended to a planed position. Therefore, a construction cycle can be shortened, and operation cost is reduced. After the sand prevention tubular column is descended to the planned position, high pressure packing sand prevention and circulation packing sand prevention can be carried out.
Description
Technical field
The utility model belongs to the underground sand-prevention tubing string of petroleum industry, but the underground sand-prevention tubing string of a kind of capable of backwashing wells sand washing high pressure gravel pack particularly can reduce the flow chart of oil-water well underground sand-prevention construction, reduces the sand control construction cost.
Background technology
Shake out on the impact of crude oil production in order to reduce oil-water well, often adopt this technological means of gravel pack to slow down formation sand production.Being connected at present the high pressure packing instrument of the routine on the sand control pipe, is to adopt behind the design attitude hydraulic principle to make instrument first setting under sand control pipe, and then open fill passage again behind the packing oil jacket annular space carries out high pressure gravel pack and flow pack; After the sand off, the gravel in the backwash flowline, last forward tubing string is realized giving up, and trips out all processes that sand control pipe is finished gravel filling sand prevention.For guaranteeing under the sand control pipe will to descend first blank tubing to design attitude before conventional packing tool is gone into the well, carry out the sand washing operation and leave sufficiently long pocket preventing behind the formation sand production not in place under the sand control pipe; But many sand proof wells can shake out again in the process that makes a trip after the sand washing operation is finished in a large number because to reserve pocket little and shake out seriously, cause under the sand control pipe so just must tripping out sand control pipe and re-starting the sand washing operation less than design attitude.This will prolong duty cycle, greatly improves operating cost.The scene needs a kind of lower one-trip string just can realize that the sand control pipe of sand washing and gravel pack solves the problems referred to above.
Summary of the invention
But the purpose of this utility model provides the underground sand-prevention tubing string of a kind of capable of backwashing wells sand washing high pressure gravel pack, only lower one-trip string can be realized anti-flushing well sand washing and high pressure gravel pack, reduce the flow chart of oil-water well underground sand-prevention construction, reduce the sand control construction cost.
But the utility model is achieved in that the underground sand-prevention tubing string of a kind of capable of backwashing wells sand washing high pressure gravel pack and comprises top packer, tell tale screen and sand screen, top packer is provided with the filling mouth, and top packer, tell tale screen are connected with sand screen and are connected with oil pipe.The below of sand screen connects the bottom sand washing machine, the central tube of top packer is connected with washing pipe, its lower contact is connected with tell tale screen, washing pipe passes from tell tale screen, sand screen, insert in the sand washing machine of bottom, consist of the sand washing internal channel, use the filling mouth of top packer to carry out the high pressure gravel pack.
Compared with prior art, the utlity model has following useful effect.This tubing string not only has the high pressure packing function of conventional sand control pipe, but also has the sand washing function.When using this sand control pipe to go into the well high pressure gravel pack operation, seriously can't descend the hole condition of design attitude if running into shakes out, can utilize by top packer and connect and be inserted into the sand washing internal channel that washing pipe in the sand washing machine of bottom and bottom sand washing machine form, carry out anti-flushing well sand washing operation, bore but make under the sand washing limit, this sand control pipe limit, thereby can guarantee that sand control pipe is lower to design attitude smoothly.Will shorten construction period like this, reduce operating cost.Behind design attitude, can carry out high-pressure packing sand-control and flow pack sand control under this sand control pipe.
Description of drawings
Fig. 1 is the schematic diagram that uses this tubing string to carry out the sand washing operation in the process of going into the well.
Fig. 2 is the schematic diagram that uses this tubing string to carry out the high pressure packing operation.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description.Referring to Fig. 1, but the underground sand-prevention tubing string of a kind of capable of backwashing wells sand washing high pressure gravel pack comprises top packer 3, tell tale screen and sand screen 5, and top packer 3 is provided with filling mouth 9, and top packer 3, tell tale screen and sand screen are connected successively with oil pipe 2 connections.The below of sand screen 5 connects bottom sand washing machine 7, and the central tube of top packer 3 is connected with washing pipe 4, its lower contact is connected with tell tale screen, and washing pipe 4 passes from tell tale screen, sand screen 5, inserts in the sand washing machine 7 of bottom.Bottom sand washing machine 7 comprises housing and bottom ball seat 10, and housing is cylindrical body, and its bottom is provided with baffle ring or limited step, and housing top is connected with oil pipe 2, and bottom ball seat 10 is installed in the housing, fixes by shear pin.Bottom ball seat 10 is provided with scouring sluice, scouring sluice also is centre bore, and its cylindrical is provided with in the shear pin hole, and the top inner circle of scouring sluice engages, forms sealing with the bottom cylindrical of washing pipe 4, the bottom inner circle of scouring sluice cooperates with the steel ball of input, can close the sand washing internal channel.
The utility model is connected G.I.H by oil pipe 2 with top packer 3, if this sand control pipe needs sand washing in going down process, then can open oil pipe gate and sleeve gate, with pump truck flushing fluid is pumped into from sleeve pipe, the annular space that flushing fluid forms by oil pipe 2 and sleeve pipe 1 enters the bottom of sand control pipe; Flushing fluid carries reservoir sand 8 and enters the sand washing internal channel that is comprised of washing pipe 4 and bottom sand washing machine 7, returns out ground by oil pipe 2 inner chambers.
Referring to Fig. 2, finish under the sand control pipe of sand washing operation behind design attitude, from oil pipe 2 interior input steel balls, steel ball is sink on the scouring sluice of bottom ball seat 10; Just suppress from oil pipe, make steel ball close the scouring sluice of bottom on the ball seat 10.Under the effect of hydraulic coupling, the shear pin between bottom ball seat 10 and the housing is cut off, and makes bottom ball seat 10 descending, and washing pipe 4 breaks away from bottom ball seat 10, sets up the flow pack passage.Again drop into steel ball and suppress, top packer 3 is finished setting, and open fill mouth 9.Close sleeve gate, ground high pressure pump truck pumps into the high pressure load fluid to oil pipe 2, load fluid carry gravel that filling uses by oil pipe 2 to top packer 3, the annular space that enters sand screen 5 and sleeve pipe 1 through filling mouth 9 arrives oil reservoir 6, implement squeeze pack, open sleeve gate after finishing squeeze pack.Pump truck continues to pump into low sand and compares load fluid in oil pipe 2, load fluid enters the annular space of sand screen 5 and sleeve pipe 1 through filling mouth 9, because the steel ball that the scouring sluice of bottom ball seat 10 is put into cuts out, after its liquid partly enters sand screen 5, arrive in the oil jacket annular space on top packer 3 tops through washing pipe 4, return ground by sleeve gate.And the after filtration filtration of sandpipe 5 of the gravel composition in the load fluid constantly deposits in the annular space of sand screen 5 and sleeve pipe 1, finishes flow pack.Gravel after filling is finished in the backwash flowline 2, forward oil pipe 2 is given up, and this sand control pipe is stayed the down-hole, finishes whole sand control process.
Claims (3)
1. but the underground sand-prevention tubing string of capable of backwashing wells sand washing high pressure gravel pack, comprise top packer (3), tell tale screen and sand screen (5), top packer (3) is provided with filling mouth (9), top packer (3), tell tale screen is connected 5 with sand screen) use successively oil pipe (2) to connect, it is characterized in that, the below of sand screen (5) connects bottom sand washing machine (7), the central tube of top packer (3) is connected with washing pipe (4), its lower contact is connected with tell tale screen, washing pipe (4) is from tell tale screen, sand screen passes in (5), inserts in the bottom sand washing machine (7).
2. but the underground sand-prevention tubing string of a kind of capable of backwashing wells sand washing high pressure according to claim 1 gravel pack, it is characterized in that, described bottom sand washing machine (7) comprises housing and bottom ball seat (10), housing is cylindrical body, its bottom is provided with baffle ring or limited step, housing top is connected with oil pipe (2), and bottom ball seat (10) is installed in the housing, fixes by shear pin.
3. but the underground sand-prevention tubing string of a kind of capable of backwashing wells sand washing high pressure according to claim 2 gravel pack, it is characterized in that, described bottom ball seat (10) is provided with scouring sluice, its cylindrical is provided with the shear pin hole, the top inner circle of scouring sluice engages, forms sealing with the bottom cylindrical of washing pipe (4), and the bottom inner circle of scouring sluice cooperates with the steel ball of input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547688 CN202882862U (en) | 2012-10-24 | 2012-10-24 | Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220547688 CN202882862U (en) | 2012-10-24 | 2012-10-24 | Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882862U true CN202882862U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220547688 Expired - Fee Related CN202882862U (en) | 2012-10-24 | 2012-10-24 | Underground sand prevention tubular column capable of enabling well backwashing and sand washing and high-pressure gravel packing to be achieved |
Country Status (1)
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| CN (1) | CN202882862U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695915A (en) * | 2015-03-16 | 2015-06-10 | 山东普瑞思德石油技术有限公司 | Sand washing and prevention integrated completion pipe string and control method thereof |
| CN105626000A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Gravel pack sand prevention pipe column installed when wellhole is flushed, for horizontal well |
| CN106948805A (en) * | 2017-05-11 | 2017-07-14 | 中国石油化工股份有限公司 | A kind of oil-water well is multi-functional to test pipe construction device and its construction method |
| CN107842345A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Multi-functional well selective sand control tubing string |
| CN109854213A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | Set damage repairs the sand control pipe of well |
| CN109958417A (en) * | 2017-12-26 | 2019-07-02 | 中国石油天然气股份有限公司 | Fracturing sand control tubing string and method |
| CN111706304A (en) * | 2020-07-01 | 2020-09-25 | 杨国 | Filling tool with reverse circulation function |
| CN112343562A (en) * | 2020-11-04 | 2021-02-09 | 山东华冠能源技术有限公司 | Gravel filling device and method |
| CN112502675A (en) * | 2021-02-09 | 2021-03-16 | 东营市海天自动化工程有限责任公司 | Forward filling tool |
| CN113958293A (en) * | 2020-07-20 | 2022-01-21 | 中国石油化工股份有限公司 | Sand control pipe column capable of washing sand and reversely filling in pipe and filling device |
| 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 |
| CN114075933B (en) * | 2020-08-13 | 2024-04-26 | 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 |
-
2012
- 2012-10-24 CN CN 201220547688 patent/CN202882862U/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626000A (en) * | 2014-10-29 | 2016-06-01 | 中国石油化工股份有限公司 | Gravel pack sand prevention pipe column installed when wellhole is flushed, for horizontal well |
| CN105626000B (en) * | 2014-10-29 | 2018-06-15 | 中国石油化工股份有限公司 | Horizontal well washes down gravel filling sand prevention tubing string |
| CN104695915B (en) * | 2015-03-16 | 2017-05-10 | 山东普瑞思德石油技术有限公司 | Sand washing and prevention integrated completion pipe string and control method thereof |
| CN104695915A (en) * | 2015-03-16 | 2015-06-10 | 山东普瑞思德石油技术有限公司 | Sand washing and prevention integrated completion pipe string and control method thereof |
| CN107842345A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Multi-functional well selective sand control tubing string |
| CN106948805B (en) * | 2017-05-11 | 2023-05-02 | 中国石油化工股份有限公司 | Multifunctional pipe inspection construction device for oil-water well and construction method thereof |
| CN106948805A (en) * | 2017-05-11 | 2017-07-14 | 中国石油化工股份有限公司 | A kind of oil-water well is multi-functional to test pipe construction device and its construction method |
| CN109958417A (en) * | 2017-12-26 | 2019-07-02 | 中国石油天然气股份有限公司 | Fracturing sand control tubing string and method |
| CN109854213A (en) * | 2019-03-18 | 2019-06-07 | 中国石油化工股份有限公司 | Set damage repairs the sand control pipe of well |
| CN111706304A (en) * | 2020-07-01 | 2020-09-25 | 杨国 | Filling tool with reverse circulation function |
| CN111706304B (en) * | 2020-07-01 | 2022-08-30 | 杨国 | Filling tool with reverse circulation function |
| CN113958293A (en) * | 2020-07-20 | 2022-01-21 | 中国石油化工股份有限公司 | Sand control pipe column capable of washing sand and reversely filling in pipe and filling device |
| 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 |
| CN114075933B (en) * | 2020-08-13 | 2024-04-26 | 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 |
| CN112343562A (en) * | 2020-11-04 | 2021-02-09 | 山东华冠能源技术有限公司 | Gravel filling device and method |
| CN112502675A (en) * | 2021-02-09 | 2021-03-16 | 东营市海天自动化工程有限责任公司 | Forward filling tool |
| CN112502675B (en) * | 2021-02-09 | 2021-06-11 | 山东高盛石油科技有限公司 | Forward filling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131024 |