CN202165064U - Pipe column used for layered oil production technology and provided with oil layer protection function - Google Patents
Pipe column used for layered oil production technology and provided with oil layer protection function Download PDFInfo
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- CN202165064U CN202165064U CN2011202265884U CN201120226588U CN202165064U CN 202165064 U CN202165064 U CN 202165064U CN 2011202265884 U CN2011202265884 U CN 2011202265884U CN 201120226588 U CN201120226588 U CN 201120226588U CN 202165064 U CN202165064 U CN 202165064U
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Abstract
The utility model discloses a pipe column used for layered oil production technology and provided with oil layer protection function. The pipe column comprises an oil pumping pipe column and an oil layer protection releasing pipe column, wherein the oil layer protection releasing pipe column is formed by sequentially and fixedly connecting a screwed plug (4), an oil layer protector (9), a safety connector (8), a Y341 self-test sealing packer (10), a Y441 packer (6) and a releasing head (5) from bottom to top, wherein a switch (11) of the oil pumping pipe column is inserted into the oil layer protector (9) of the oil layer protection releasing pipe column, and has the characteristic that any production layer can be opened or closed freely, conveniently and accurately. The pipe column provided by the utility model has the advantages that the structural design is simple, reasonable, convenient and practical; the stratum can be sealed and a pump is maintained without controlling an oil well, so that flushing fluid or well control fluid is prevented from entering into and polluting an oil layer, the oil/gas layer is protected, the production efficiency is improved, the effective production period of the oil layer is prolonged, any oil layer can be closed or opened when the oil is produced, and a stratum-changing production is realized without withdrawing a stratum-clamping releasing pipe column.
Description
Technical field
The utility model relates to a kind of oilfield layering oil extraction process tubular column when producing especially relates to a kind of oil production by layer process pipe string that is used for low energy oil well pump detection and workover process protection oil reservoir.
Background technology
At present, oil field most of old liberated areas piece and part block stratum energy newly developed is low, after the kill job, and the well killing fluid polluted reservoir, the oil well restore cycle is long, and the oil well productivity after the recovery can significantly reduce, and directly influences oil well output.
To the oil layer protection in the operation, most at present chemical methodes that adopt realize through the performance of improving well killing fluid, but because of price is high, cost is big, on promoting, also have certain degree of difficulty.
Along with oil field development is goed deep into, the stratum operating mode becomes increasingly complex, and straticulate exploration is many, and interlayer difference is big, and interlayer contradiction is outstanding, closes to adopt and can not satisfy the production demand, and mechanical separate zone production has become the most effective means of potentiality between tap layer.For now; The oil field has formed the multiple conventional excavating technology tubing string that divides; As: sand control card branch is adopted the production technology tubing string, multilayer looks for Ka Shui once to accomplish tubing string etc., but all branch excavating technology tubing strings all lack the function of protecting oil reservoir, aborning or in the frequent inspection pump measure; Flushing fluid or well killing fluid get into the stratum, have caused contaminated, the obstruction of part oil reservoir.
The utility model content
In order to solve the problem that can not protect oil reservoir on the above-mentioned mechanical oil production by layer flow string basis, the utility model provides a kind of protection oil reservoir oil production by layer production technology tubing string, can either when pump detection and workover, seal the stratum; Realize the snubbing serving in the inspection pump process; Avoid flushing fluid or well killing fluid to get into the oil layer pollution oil reservoir, the protection oil reservoir improves rate when producing; Reduce cost, prolong oil reservoir effective campaign; Can when oil well production, close or open arbitrary oil reservoir again, realize that the motionless card layer of the oil well tubing string of giving up changes layer exploitation.Tubular column structure simplicity of design, reasonable, convenient, practical is at present domestic process pipe string the most ripe, the oil production by layer of state-of-the-art employing mechanical system protection oil reservoir.
The utility model adopts following technical proposals: protection oil reservoir oil production by layer process pipe string is made up of pumping pipe string and the protection oil reservoir tubing string of giving up, and pumping pipe string is fixedly connected sequentially and is formed by derailing switch 11, core pipe 7, plug 4, screen casing 3, anti-jetting oil pump 2, tubing string 1; The protection oil reservoir give up tubing string by plug 4, reservoir protector 9, safety joint 8, Y341 self-test sealing packer 10, Y441 type packer 6, giving up 5 is fixedly connected sequentially and forms; Wherein, pumping pipe string derailing switch 11 is inserted into the protection oil reservoir and gives up in the tubing string reservoir protector 9.
Said protection oil reservoir give up tubing string can install 2 the cover above reservoir protector 9.All reservoir protectors 9 all are in closed condition in removing the pumping pipe string process.Said pumping pipe string is in closed state in the process of removing.
The beneficial effect of the utility model is; Tubular column structure is reasonable in design, practical, can satisfy the requirement that oil well delamination recovers the oil, and oil reservoir is not contaminated in the time of guaranteeing the oil well pump detection and workover again or change layer to produce; Specifically: tubing string is to all corresponding configuration reservoir protector of each section oil reservoir; Protector can be closed during pump detection and workover, without the kill-job construction, reaches the non-staining purpose of oil reservoir; Change layer during production as required, the protector that can open random layer reaches and changes the purpose that layer is produced; The supporting safety joint of tubing string, easy to use, safe and reliable, be the tubing string condition that facilitates smoothly; The supporting Y341 self-test sealing packer of tubing string has realized that multiple-string packer sets the function of posteriority envelope; Reservoir protector is that mechanical type is opened, closed and reach the purpose of changing layer, with the hydraulic pressure seam change switch relatively, have unlatchings, close convenience, accurately, characteristics intuitively.
Description of drawings
Fig. 1 is the utility model protection oil reservoir oil production by layer process pipe string structural representation.
Fig. 2 is the protection oil reservoir tubular column structure sketch map of giving up
Fig. 3 is the pumping pipe string structural representation
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further:
The utility model protection oil reservoir oil production by layer process pipe string is made up of pumping pipe string and the protection oil reservoir tubing string of giving up, and pumping pipe string is fixedly connected sequentially and is formed by derailing switch 11, core pipe 7, plug 4, screen casing 3, anti-jetting oil pump 2, tubing string 1; The protection oil reservoir give up tubing string by plug 4, reservoir protector 9, safety joint 8, Y341 self-test sealing packer 10, Y441 type packer 6, giving up 5 is fixedly connected sequentially and forms; Wherein, Pumping pipe string derailing switch 11 is inserted into the protection oil reservoir and gives up in the tubing string reservoir protector 9; Open the feed pathway of reservoir protector 9, crude oil gets into pit shaft, satisfies the production needs.
Said protection oil reservoir give up tubing string can install 2 the cover above reservoir protector 9.All reservoir protectors 9 all are in closed condition in removing the pumping pipe string process.The crude oil of all oil reservoirs all can not get into pit shaft, and flushing fluid or well killing fluid can not get into oil reservoir, prevent polluted reservoir, under the situation of not kill-job, the accident of well kick or blowout can not take place yet.Said pumping pipe string is in closed state in the process of removing, prevent that the crude oil in the pit shaft gets into the pumping pipe string inner chamber when playing lower sucker rod and flow string, prevents that liquid overflows in pipe is annotated in the pit shaft.
The utility model realizes that function comprises following process: the protection oil reservoir give up tubing string composition member plug 4, reservoir protector 9, safety joint 8, Y341 self-test sealing packer 10, Y441 type packer 6, give up 5 and oil pipe 1 be lowered to the pit shaft precalculated position successively by design from bottom to top; Beat hydraulic pressure Y341 self-test sealing packer 9, Y441 packer 6 sets; Packing element is attached on the casing wall; Be sealed in oil sets annular space, oil reservoir is separated into some intervals; Simultaneously Y441 packer 6 slips open and are stuck on the casing wall, continue to suppress to improve pressure 5 a control pin of giving up and cut off again, and realize giving up, and the tubing string 5 or more of proposing to give up protects the oil reservoir tubing string of giving up to be suspended on the sleeve pipe.
The composition member derailing switch 11 of pumping pipe string, core pipe 7, plug 4, screen casing 3, anti-jetting oil pump 2, oil pipe are lowered in the pit shaft by design from bottom to top successively.Derailing switch 11, core pipe 7 inserts the protection oil reservoirs and gives up in the tubing string, opens the reservoir protector 9 of producing zone position and produces, and anti-jetting oil pump 2 takes formation fluid to ground.
During production, have only one deck reservoir protector 9 to be in opening, formation fluid gets in the tubing string through reservoir protector 9, is brought to ground through anti-jetting oil pump 2; The reservoir protector 9 of remainder layer is in closed condition.During pump detection and workover, derailing switch 11 cuts out producing zone reservoir protector 9, and all reservoir protectors are in closed condition, and flushing fluid or well killing fluid can not get into the oil layer pollution oil reservoir, effectively protects oil reservoir.In the time of need changing layer, propose pumping pipe string, primary payzone reservoir protector is closed, and is lowered to the reservoir protector 9 that pumping pipe string is opened another layer again, need not move the protection oil reservoir tubing string of giving up, and realizes changing layer production.
If when need changing the protection oil reservoir and giving up tubing string, propose pumping pipe string earlier, be lowered to fishing string again, if deblocking is smooth, pull the protection oil reservoir tubing string of giving up out; If tubing string is by the sand card, the deblocking tubing string is carried motionless, and tubing string just breaks off from safety joint 8 and proposing.Then, take other measure again, pull the protection oil reservoir tubing string of giving up out.
Claims (4)
1. protection oil reservoir oil production by layer process pipe string is made up of pumping pipe string and the protection oil reservoir tubing string of giving up, and said pumping pipe string is fixedly connected sequentially and is formed by derailing switch (11), core pipe (7), plug (4), screen casing (3), anti-jetting oil pump (2), tubing string (1); The said protection oil reservoir tubing string of giving up is fixedly connected sequentially and is formed by plug (4), reservoir protector (9), safety joint (8), Y341 self-test sealing packer (10), Y441 type packer (6), the head (5) of giving up; It is characterized in that: said pumping pipe string derailing switch (11) is inserted into said protection oil reservoir and gives up in the tubing string reservoir protector (9).
2. protection oil reservoir oil production by layer process pipe string according to claim 1 is characterized in that: said protection oil reservoir give up tubing string can install 2 the cover above reservoir protectors (9).
3. protection oil reservoir oil production by layer process pipe string according to claim 2, it is characterized in that: said all reservoir protectors (9) all are in closed condition in removing said pumping pipe string process.
4. protection oil reservoir oil production by layer process pipe string according to claim 1, it is characterized in that: said pumping pipe string is in closed state in the process of removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202265884U CN202165064U (en) | 2011-06-30 | 2011-06-30 | Pipe column used for layered oil production technology and provided with oil layer protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202265884U CN202165064U (en) | 2011-06-30 | 2011-06-30 | Pipe column used for layered oil production technology and provided with oil layer protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165064U true CN202165064U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202265884U Expired - Lifetime CN202165064U (en) | 2011-06-30 | 2011-06-30 | Pipe column used for layered oil production technology and provided with oil layer protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165064U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852467A (en) * | 2011-06-30 | 2013-01-02 | 中国石油天然气股份有限公司 | Separate zone production technical string capable of protecting oil reservoirs |
| CN103015951A (en) * | 2012-12-27 | 2013-04-03 | 阜新驰宇石油机械有限公司 | Layer-selected oil production processing pipe column |
| CN103696744A (en) * | 2012-09-27 | 2014-04-02 | 大港油田集团有限责任公司 | Three-stage layered commingled production string |
| CN104420834A (en) * | 2013-08-23 | 2015-03-18 | 天津大港油田钻采技术开发公司 | Separate-layer sand blocking simultaneous production pipe string |
-
2011
- 2011-06-30 CN CN2011202265884U patent/CN202165064U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852467A (en) * | 2011-06-30 | 2013-01-02 | 中国石油天然气股份有限公司 | Separate zone production technical string capable of protecting oil reservoirs |
| CN103696744A (en) * | 2012-09-27 | 2014-04-02 | 大港油田集团有限责任公司 | Three-stage layered commingled production string |
| CN103015951A (en) * | 2012-12-27 | 2013-04-03 | 阜新驰宇石油机械有限公司 | Layer-selected oil production processing pipe column |
| CN104420834A (en) * | 2013-08-23 | 2015-03-18 | 天津大港油田钻采技术开发公司 | Separate-layer sand blocking simultaneous production pipe string |
| CN104420834B (en) * | 2013-08-23 | 2017-03-29 | 天津大港油田钻采技术开发公司 | Layering sand block is same to adopt tubing string |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
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| CX01 | Expiry of patent term |