CN1354317A - Downhole production-injection method and integrated pipe string - Google Patents
Downhole production-injection method and integrated pipe string Download PDFInfo
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- CN1354317A CN1354317A CN 00128597 CN00128597A CN1354317A CN 1354317 A CN1354317 A CN 1354317A CN 00128597 CN00128597 CN 00128597 CN 00128597 A CN00128597 A CN 00128597A CN 1354317 A CN1354317 A CN 1354317A
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Abstract
The present invention discloses a downhole production-injection process and integrated pipe string. It mainly utilizes integrated pipe string to make downhole separate zone production-injection, and uses packer to pack production-injection horizon, uses booster pump to extract liquid from producing horizon and utilizes sealing pump to reinject the liquid into the injection horizon of same well. The arrangement change of the integrated pipe string can be used for making various production-injection process of extracting upper portion and injecting lower portion, extracting lower portion and injecting upper portion, extracting middle and injecting two ends, and extracting two ends and injecting middle, etc. Said invention is suitable for various oil fields, especially it is suitable for water-injecting production process of peripheral small block.
Description
The present invention relates to oil-field flooding technology, relate in particular to individual well production-injection method and integrated pipe column.
At present, the oil-field flooding process using is built ground water-injection station, Sewage Disposal, laying ground waterflood-transmission line, and the recovered water of floor treatment is injected the stratum by special water injection equipment, and stratum energy is maintained, and improves oil recovery.But shortcomings such as equipment is many, investment is big, the construction period is long, the line service amount is big, cost of production height that this ancient method exists are restricting the exploitation and the development in oil field.
The purpose of this invention is to provide a kind of down-hole production-injection method and integral process tubing string, it can overcome above-mentioned the deficiencies in the prior art and shortcoming, and has characteristics such as investment is little, construction is fast, equipment is simple, make up flexibly, cost is low.
The objective of the invention is to reach like this:
Comprise that formation water with extraction is recycled into the down-hole production-injection method in the oil reservoir, with precalculated position under the integrated pipe column lower going-into-well, booster pump, canned pump, packer and injection allocation switch by integrated pipe column comes out the hydromining of extraction layer, be recycled into again in the implanted layer, to keep and the recovery stratum energy.
The integrated pipe column that comprises tubing string, rod string, packer, pump and injection allocation switch, implanted layer and extraction layer are opened in the packer and the packing in sleeve pipe of injection allocation switch that are connected on the tubing string, and the injection allocation switch that the water of extraction in the extraction layer is recycled into booster pump, canned pump and connection tubing string interior or exterior space in the implanted layer is connected on the tubing string.
Purpose of the present invention also can reach by following measure:
Adopting lower floor by integrated pipe column one-tenth capable of being combined injects the upper strata, adopts upper strata injection lower floor, adopts the various production-injection methods that the intermediate layer is injected two layer, adopted layer injection intermediate layer, two.
Pump in the integrated pipe column is the booster pump of recovered water and the canned pump that injects water, and its pattern can be bar plunger displacement pump, screw pump, submersible electric pump.
The drawing of accompanying drawing of the present invention is described as follows:
Fig. 1 adopts lower floor for the embodiment of the invention and injects upper strata tubing string schematic diagram;
Fig. 2 adopts the upper strata for the embodiment of the invention and injects lower floor's tubing string schematic diagram;
Fig. 3 adopts the intermediate layer for the embodiment of the invention and injects two layer tubing string schematic diagram;
Fig. 4 adopts two layer for the embodiment of the invention and injects intermediate layer tubing string schematic diagram.
Below in conjunction with embodiment the present invention is further described:
As Fig. 1, adopt lower floor and inject the upper strata, packer 2,7, canned pump 3, injection allocation switch 5, booster pump 8 and plug 15 are connected on the tubing string 11, be connected with 9 by the plunger 4 of connecting rod 6 canned pump 3 and booster pump 8, rod string 1 is connected with the plunger 4 of canned pump, in whole integrated pipe column lower going-into-well setting of casing 12, packer 2 packing implanted layers 13 above oil jacket annular spaces, oil jacket annular space between packer 7 packing implanted layers 13 and the extraction layer 14 is recycled into the fluid of extraction in the extraction layer 14 in the implanted layer 13.
During work, up stroke: the plunger 9 of booster pump 8, the plunger 4 of canned pump 3 are up with rod string 1, enter in plunger 9 lower cavity of booster pump 8 from the fluid of extraction layer 14 extraction: down stroke: the plunger 9 of booster pump 8, the plunger 4 of canned pump 3 are descending with rod string 1, booster pump 8 is discharged liquid and is entered between canned pump 3 and the booster pump 8, and the plunger 4 descending compressed liquids of canned pump 3 enter in the implanted layer 13 by injection allocation switch 5.Move in circles like this, reached in the purpose of not only adopting but also annotating with well.
According to above-mentioned principle.Can also design following several notes integrated pipe column of adopting:
As Fig. 2, adopt the upper strata and inject lower floor: connect packer 2, canned pump 3 and booster pump 8 on the tubing string 11; Plunger 4 and the plunger 9 of booster pump 8, the plunger 4 that rod string 1 is connected canned pump 3 that connecting rod 6 connects canned pump 3 together are lowered to precalculated position, down-hole in the sleeve pipe 12.Layer 13 and implanted layer 14 is exploited out in packer 2 packings, and the liquid of extraction layer extraction is injected in the implanted layer 13.
As Fig. 3, adopt the intermediate layer and annotate two layer: packer 2,7 and 10, canned pump 3, booster pump 8 and injection allocation switch 5 are connected on the tubing string 11, the plunger 4 of rod string 1 and canned pump 3 links to each other, connecting rod 6 is connected plunger 4 with plunger 9, the precalculated position in the lower going-into-well setting of casing 12 together, implanted layer 13 above oil jacket annular spaces are left in packer 2 packings, the oil jacket annular space between implanted layer 13 and the extraction layer 14 is left in packer 7 and 10 packings, injection allocation switch 5 is positioned at implanted layer 13 relative positions, and booster pump 8 is in the relative position of extraction layer 14.The liquid of extraction in the intermediate layer 14 is recycled in the implanted layer 13 at two.
As Fig. 4, adopt two layer and annotate the intermediate layer: packer 2 and 7, canned pump 3, booster pump 8, injection allocation switch 5 and plug 15 are connected on the tubing string 11, connecting rod 6 connects plunger 4 and 9, and rod string 1 is connected on the plunger 4 of canned pump 3, together the precalculated position in the lower going-into-well setting of casing 12.The oil jacket annular space of implanted layer 13 and two extraction layer 14 in the middle of packer 2 and 7 is separated respectively, injection allocation switch 5 is at the correspondence position of implanted layer 13.Plug 15 is arranged at tubing string 11 bottoms, is equipped with extraction liquid inlet opening in the corresponding positions of extraction layer 14.Booster pump 8 is positioned at the correspondence position of top extraction layer 14, and canned pump 3 is connected with its top.
The present invention has the following advantages compared to existing technology:
1, can in individual well, realize adopting the notes integral process, have little, the instant effect of investment, do not need the large number of ground construction,
The advantage such as do not have that sewage handling problem, expense are low, easy construction, line service amount are few;
2, can be widely used in the waterflooding extraction technology in all kinds of oil fields, be specially adapted to the water injection technology in edge cell piece oil field.
Claims (4)
1. down-hole production-injection method, comprise that the formation water with extraction is recycled in the oil reservoir again, it is characterized in that with the integrated pipe column G.I.H booster pump, canned pump, packer and the injection allocation switch by integrated pipe column comes out the hydromining of extraction layer, is recycled in the implanted layer.
2. a kind of down-hole according to claim 1 production-injection method is characterized in that being combined into by integrated pipe column and adopts lower floor and inject the upper strata, adopt the upper strata and inject lower floor, adopt the intermediate layer and inject two layer, adopt the various production-injection methods that two layer injects the intermediate layer.
3. the notes integrated pipe column is adopted in a down-hole, comprise tubing string, rod string, packer, pump and injection allocation switch, implanted layer (13) and extraction layer (14) are opened in the packer (2,7) and injection allocation switch (5) packing in sleeve pipe (12) that it is characterized in that being connected on the tubing string (11), in implanted layer (13), the injection allocation switch (5) of booster pump (8), canned pump (3) and connection tubing string (11) interior or exterior space is connected on the tubing string (11) with the produced-water reinjection in the extraction layer (14).
4. the notes integrated pipe column is adopted in a kind of down-hole according to claim 3, it is characterized in that said pump is the booster pump (8) of recovered water and the canned pump (3) that injects water, and its pattern can be bar plunger displacement pump, screw pump, submersible electric pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00128597 CN1354317A (en) | 2000-11-21 | 2000-11-21 | Downhole production-injection method and integrated pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00128597 CN1354317A (en) | 2000-11-21 | 2000-11-21 | Downhole production-injection method and integrated pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1354317A true CN1354317A (en) | 2002-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00128597 Pending CN1354317A (en) | 2000-11-21 | 2000-11-21 | Downhole production-injection method and integrated pipe string |
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| CN (1) | CN1354317A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187305B (en) * | 2007-01-18 | 2012-04-25 | 中国海洋石油总公司 | Single pipe co-well oil-pumping and water-injecting system |
| CN103362490A (en) * | 2012-04-01 | 2013-10-23 | 北京化工大学 | Production-injection device for downhole oil-water separation |
| CN107035349A (en) * | 2017-06-10 | 2017-08-11 | 山东恒驰石油装备有限责任公司 | A kind of interlayer pressure difference cyclic water stimulation pumping pipe string |
| CN107420076A (en) * | 2017-07-07 | 2017-12-01 | 中国石油天然气股份有限公司 | Turbine injection increasing device applied to oil field separate injection well |
| CN107558931A (en) * | 2016-07-01 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of full pit shaft Gravity Separation sucker rod pump same well production-injection method and process pipe string |
| CN107740685A (en) * | 2017-09-30 | 2018-02-27 | 中国海洋石油总公司 | It is a kind of with adopted under submersible electric pump it is upper note completion flow string |
| CN107780904A (en) * | 2016-08-29 | 2018-03-09 | 中国石油天然气股份有限公司 | Water injection and oil production pipe column |
| CN108071365A (en) * | 2016-11-10 | 2018-05-25 | 中国石油天然气股份有限公司 | Coal bed gas production, drainage and water injection integrated tubular column |
| CN108071376A (en) * | 2016-11-17 | 2018-05-25 | 中国石油天然气股份有限公司 | Injection and production string in coal-bed gas well |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
-
2000
- 2000-11-21 CN CN 00128597 patent/CN1354317A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101187305B (en) * | 2007-01-18 | 2012-04-25 | 中国海洋石油总公司 | Single pipe co-well oil-pumping and water-injecting system |
| CN103362490A (en) * | 2012-04-01 | 2013-10-23 | 北京化工大学 | Production-injection device for downhole oil-water separation |
| CN107558931A (en) * | 2016-07-01 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of full pit shaft Gravity Separation sucker rod pump same well production-injection method and process pipe string |
| CN107558931B (en) * | 2016-07-01 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of full pit shaft Gravity Separation sucker rod pump same well production-injection method and process pipe string |
| CN107780904A (en) * | 2016-08-29 | 2018-03-09 | 中国石油天然气股份有限公司 | Water injection and oil production pipe column |
| CN108071365A (en) * | 2016-11-10 | 2018-05-25 | 中国石油天然气股份有限公司 | Coal bed gas production, drainage and water injection integrated tubular column |
| CN108071365B (en) * | 2016-11-10 | 2020-03-10 | 中国石油天然气股份有限公司 | Coal bed gas production, drainage and water injection integrated tubular column |
| CN108071376A (en) * | 2016-11-17 | 2018-05-25 | 中国石油天然气股份有限公司 | Injection and production string in coal-bed gas well |
| CN107035349A (en) * | 2017-06-10 | 2017-08-11 | 山东恒驰石油装备有限责任公司 | A kind of interlayer pressure difference cyclic water stimulation pumping pipe string |
| CN107420076A (en) * | 2017-07-07 | 2017-12-01 | 中国石油天然气股份有限公司 | Turbine injection increasing device applied to oil field separate injection well |
| CN107740685A (en) * | 2017-09-30 | 2018-02-27 | 中国海洋石油总公司 | It is a kind of with adopted under submersible electric pump it is upper note completion flow string |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
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