CN202954798U - Multifunctional water extraction and injection safety production string - Google Patents
Multifunctional water extraction and injection safety production string Download PDFInfo
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- CN202954798U CN202954798U CN 201220576044 CN201220576044U CN202954798U CN 202954798 U CN202954798 U CN 202954798U CN 201220576044 CN201220576044 CN 201220576044 CN 201220576044 U CN201220576044 U CN 201220576044U CN 202954798 U CN202954798 U CN 202954798U
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Abstract
The utility model discloses a multifunctional water extraction and injection safety production string which comprises a casing and a central tube. A part of the central tube is arranged in the casing, and a releasing string used for water extraction and injection is connected to the lower end of the central tube; and a dual-channel Y-shaped joint is arranged at the bottom of the casing, one channel of the dual-channel Y-shaped joint penetrates through the central tube, and another channel of the dual-channel Y-shaped joint is connected with an electric pumping water extraction string. A normally closed hydraulic-control slide bushing, a check valve and an electric pump unit are respectively arranged on the electric pumping water extraction string from top to bottom. The releasing string is a double-layer sand filter tube, the double-layer sand filter tube is a tubular body, production channel structures are arranged inside the tubular body at intervals, sealing plugs are arranged in the double-layer sand filter tube which is the releasing string, the other ends of the sealing plugs are connected into the lower end of the central tube, and a plug is mounted at the lower end of the double-layer sand filter tube. The multifunctional water extraction and injection safety production string has the advantages that a well can be multipurpose, not only can be used as a water source well, but also can be used as a water injection well, and can meet requirements of safety offshore production, and problems of deficiency of water injection sources, poor development effect and the like of oil transportation platforms with ships and remote locations.
Description
Technical field
The utility model relates to the down-hole string of oil exploitation, specifically the multi-functional water water filling safety in production tubing string of adopting.
Background technology
Along with going deep into of some water floodings, water injection well quantity and individual well injection allocation amount constantly increase, and the water yield provided due to injection pattern imperfection and part water supply well can not meet the water filling demand day by day increased.Not only cost is high for new brill water supply well, and required time is long, can not solve as early as possible the contradiction of restriction offshore oilfield water filling.According to producing well reservoir geology characteristics, penetrate boiled water layer water source is provided, keep the normal water filling of former water injection well simultaneously, both can solve the problem of old platform water supply well deficiency, also can solve the difficult problem of outlying platform water filling.Realize that a well can " annotate " can " adopt " again multi-functional, significantly increase the economic benefit of oil field development.
The same well production-injection technology at present at home several oil fields have fraction to use, mainly in order to solve the energy supplement than block far away, that stake well number is few, in-place permeability is low apart from main force's oil field injection and extraction well pattern, its so-called same well production-injection is by adopting down-hole pump supercharging and packer layered, realization directly is recycled into another water filling layer in same well by a water yield formation extraction liquid in individual well, is embodied as the technology of marginal block water filling.
In view of this, for the present situation of the current outlying platform in above-mentioned sea and old platform water filling insufficient water sources, a kind of reasonable in design and multi-functional water water filling safety in production tubing string of adopting of effectively improving above-mentioned disappearance is proposed.
Summary of the invention
The purpose of this utility model is to provide the multi-functional water water filling safety in production tubing string of adopting, and can meet the maritime safety production requirement, can adopt water, again can water filling.
In order to reach above-mentioned purpose, the utility model provides following technical scheme, and the multi-functional water water filling safety in production tubing string of adopting, comprise that sleeve pipe and part are placed in the central tube in sleeve pipe, and described central tube lower end is connected with adopts the Back-off Pipe String that the water water filling is used; Described casing shoe arranges the binary channels breeches joint, and a wherein passage of this binary channels breeches joint is passed by central tube, and another passage connects electric pump water gathering tube post.
Electric pump water gathering tube post from top to bottom is respectively arranged with normal pass type hydraulic control sliding sleeve, ball-and-seat, electric pump unit.
Described Back-off Pipe String is double-deck sand screen, and double-deck sand screen is the tubular body that internal layout is provided with the production channel design, in the double-deck sand screen of Back-off Pipe String, is provided with sealing plug, and the sealing plug other end is connected in the central tube lower end; Described double-deck worry sandpipe lower end is equipped with plug.
In the middle of described double-deck worry sandpipe, be to be provided with packer between implanted layer and extraction layer.
Described central tube hypomere from top to bottom is respectively arranged with centralizer and large latus rectum sand control packer near the position of Back-off Pipe String.
In sleeve pipe one section of described central tube is equipped with storm valve, between the central tube of storm valve below and sleeve pipe, is provided with annulus safety valve; On the sleeve pipe of putting on described binary channels breeches joint, cover has large latus rectum cable-passing packer.
Compared to prior art, the beneficial effects of the utility model are:
Can realize that a well is multiplex, can either do water supply well, can do water injection well again, and can meet the requirement that maritime safety is produced.Efficiently solve boats and ships and draw the problems such as oily platform, outlying block water filling water scarcity development effectiveness be poor, can decrease marine production fluid, injected water disposal cost, effectively improve strata pressure, reduce main line back pressure, energy saving, significant for stable and high yields and the reasonable Efficient Development of some mid-late oilfield developments; Simultaneously for low-cost dilatation and the transformation of central platform, save to greatest extent platform space all significant.
The accompanying drawing explanation
Fig. 1 is the multi-functional structural representation of adopting water water filling safety in production tubing string of the utility model.
In figure: 1, storm valve; 2, annulus safety valve; 3, large latus rectum cable-passing packer; 4, binary channels breeches joint; 5, normal pass type hydraulic control sliding sleeve; 6, ball-and-seat; 7, electric pump unit; 8, centralizer; 9, large latus rectum sand control packer; 10, sealing plug; 11, double-deck worry sandpipe; 12, large latus rectum layer separating packer; 13, plug.
The specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, yet accompanying drawing only provides the use of reference with explanation, not is used for the utility model is limited.
Shown in Fig. 1, the multi-functional water water filling safety in production tubing string of adopting, comprise that sleeve pipe and part are placed in the central tube in sleeve pipe, and described central tube lower end is connected with adopts the Back-off Pipe String that the water water filling is used; Described casing shoe arranges binary channels breeches joint 4, and a wherein passage of this binary channels breeches joint is passed by central tube, and another passage connects electric pump water gathering tube post.Electric pump water gathering tube post from top to bottom is respectively arranged with normal pass type hydraulic control sliding sleeve 5, ball-and-seat 6, electric pump unit 7.In sleeve pipe one section of described central tube is equipped with storm valve 1, between the central tube of storm valve below and sleeve pipe, is provided with annulus safety valve 2; On the sleeve pipe of putting on described binary channels breeches joint, cover has large latus rectum cable-passing packer 3.
Back-off Pipe String is double-deck sand screen 11, and double-deck sand screen is the tubular body that internal layout is provided with the production channel design, in the double-deck sand screen of Back-off Pipe String, is provided with sealing plug 10, and the sealing plug other end is connected in the central tube lower end; Described double-deck worry sandpipe lower end is equipped with plug 13.In the middle of described double-deck worry sandpipe, be to be provided with packer 12 between implanted layer and extraction layer.Described central tube hypomere from top to bottom is respectively arranged with centralizer 8 and large latus rectum sand control packer 9 near the position of Back-off Pipe String.
This adopts water water filling safety in production tubing string, is applicable to the 9-5/8in sleeve pipe, and the tubing string primary structure connects electric pump water gathering tube post, the vertical side water injection string in breeches joint lower end by the oblique side in breeches joint lower end.Main kit forms by adopting the latent pump assembly of water power, large latus rectum cable-passing packer, annulus safety valve, storm valve and supporting aid.Flow string Y-shaped connector top is the concentric double pipe structure, kits such as the cable-passing packer that meets the maritime safety production requirement, annulus safety valve and storm valves, consists of.Double-deck sand screen is that inner tube is provided with the tubular body of production channel design in position at regular intervals; The sealing plug of flow string is positioned at the double-deck sand screen of Back-off Pipe String.
The foregoing is only preferred embodiment of the present utility model, non-in order to limit the scope of the claims of the present utility model, other use the equivalence of patent spirit of the present utility model to change, and all should all belong to the scope of the claims of the present utility model.
Claims (6)
1. the multi-functional water water filling safety in production tubing string of adopting, comprise that sleeve pipe and part are placed in the central tube in sleeve pipe, it is characterized in that, described central tube lower end is connected with adopts the Back-off Pipe String that the water water filling is used; Described casing shoe arranges the binary channels breeches joint, and a wherein passage of this binary channels breeches joint is passed by central tube, and another passage connects electric pump water gathering tube post.
2. the multi-functional water water filling safety in production tubing string of adopting according to claim 1, is characterized in that, electric pump water gathering tube post from top to bottom is respectively arranged with normal pass type hydraulic control sliding sleeve, ball-and-seat, electric pump unit.
3. the multi-functional water water filling safety in production tubing string of adopting according to claim 1, it is characterized in that, described Back-off Pipe String is double-deck sand screen, double-deck sand screen is the tubular body that internal layout is provided with the production channel design, be provided with sealing plug in the double-deck sand screen of Back-off Pipe String, the sealing plug other end is connected in the central tube lower end; Described double-deck worry sandpipe lower end is equipped with plug.
4. the multi-functional water water filling safety in production tubing string of adopting according to claim 3, is characterized in that, in the middle of described double-deck worry sandpipe, is to be provided with packer between implanted layer and extraction layer.
5. the multi-functional water water filling safety in production tubing string of adopting according to claim 1, is characterized in that, described central tube hypomere from top to bottom is respectively arranged with centralizer and large latus rectum sand control packer near the position of Back-off Pipe String.
6. the multi-functional water water filling safety in production tubing string of adopting according to claim 1, is characterized in that, in sleeve pipe one section of described central tube is equipped with storm valve, between the central tube of storm valve below and sleeve pipe, is provided with annulus safety valve; On the sleeve pipe of putting on described binary channels breeches joint, cover has large latus rectum cable-passing packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576044 CN202954798U (en) | 2012-11-05 | 2012-11-05 | Multifunctional water extraction and injection safety production string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220576044 CN202954798U (en) | 2012-11-05 | 2012-11-05 | Multifunctional water extraction and injection safety production string |
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| Publication Number | Publication Date |
|---|---|
| CN202954798U true CN202954798U (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220576044 Expired - Fee Related CN202954798U (en) | 2012-11-05 | 2012-11-05 | Multifunctional water extraction and injection safety production string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202954798U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU169737U1 (en) * | 2016-08-01 | 2017-03-30 | Самуил Григорьевич Бриллиант | Integrated submersible rodless electric pump for pumping water into the reservoir |
| CN109057755A (en) * | 2018-08-19 | 2018-12-21 | 中国海洋石油集团有限公司 | A kind of downhole rotational-flow gas-liquid point adopts tubing string and systematic analytic method |
| CN111594114A (en) * | 2020-05-19 | 2020-08-28 | 中国石油天然气股份有限公司 | Double-pipe digital layered water injection system and method |
-
2012
- 2012-11-05 CN CN 201220576044 patent/CN202954798U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU169737U1 (en) * | 2016-08-01 | 2017-03-30 | Самуил Григорьевич Бриллиант | Integrated submersible rodless electric pump for pumping water into the reservoir |
| CN109057755A (en) * | 2018-08-19 | 2018-12-21 | 中国海洋石油集团有限公司 | A kind of downhole rotational-flow gas-liquid point adopts tubing string and systematic analytic method |
| CN109057755B (en) * | 2018-08-19 | 2021-02-19 | 中国海洋石油集团有限公司 | Underground rotational flow gas-liquid separate production pipe column and system analysis method |
| CN111594114A (en) * | 2020-05-19 | 2020-08-28 | 中国石油天然气股份有限公司 | Double-pipe digital layered water injection system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20151105 |
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| EXPY | Termination of patent right or utility model |