CN202707016U - Sliding sleeve for oil gas well slicing extraction - Google Patents
Sliding sleeve for oil gas well slicing extraction Download PDFInfo
- Publication number
- CN202707016U CN202707016U CN201220319560XU CN201220319560U CN202707016U CN 202707016 U CN202707016 U CN 202707016U CN 201220319560X U CN201220319560X U CN 201220319560XU CN 201220319560 U CN201220319560 U CN 201220319560U CN 202707016 U CN202707016 U CN 202707016U
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- Prior art keywords
- sliding sleeve
- way valve
- hollow shaft
- cylindrical shell
- oil
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- Withdrawn - After Issue
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Abstract
The utility model discloses a sliding sleeve for oil gas well slicing extraction. The sliding sleeve comprises a sliding sleeve body which is formed by the sequential connection of an upper connector, a middle connector, a cylinder body, a one-way valve connector and a lower connector. The cylinder body is provided with a circle of first through holes. A plurality of one-way valve components which are communicated with an inner cavity of the sliding sleeve body are arranged on the circumference inside the wall of the one-way valve connector. A sliding hollow shaft is arranged inside the sliding sleeve body. The sliding hollow shaft is provided with an elastic positioning step which is formed by slotting. A circle of second through holes which are matched with the first through holes on the cylinder body are arranged on the wall of the sliding hollow shaft. The cylinder body is provided with a shut-down positioning groove and a starting positioning groove which are matched with the elastic positioning step on the sliding hollow shaft. The plurality of one-way valve components are used, fluid flow passages are provided, energy of stratum is used on each production layer so that simultaneous production is achieved, the phenomenon that oil gas fluid flows backward from a high-pressure production layer to a low-pressure production layer is avoided, the energy of each layer of oil deposit is fully used, and production efficiency is maximized.
Description
Technical field
The utility model oil gas well mining equipment is specifically related to a kind of sliding sleeve for the Oil/gas Well separate zone production.
Background technology
In oil exploration industry, the individual well flow string often needs a plurality of oil-gas Layer position is exploited when carrying out completion practice, therefore need to carry out separate zone production because the pressure coefficient of each oil-gas Layer position is different with the oil reservoir characteristics, obtain maximum oil recovery in the hope of utilizing to greatest extent stratum energy.In modern oil-gas mining, for the exploitation of each layer position under the control well, generally can isolate with packer each layer position, and realize the opening and closing of target zone position by switching sliding sleeve.Adopting switching sliding sleeve to carry out separate zone production is land and offshore oilfield multiple zone completion operating type commonly used, and the switch motion of purpose oil reservoir is the steel wire switching tools that uses standard according to the needs of recovery process, and switching sliding sleeve is carried out opening and closing.This operating type is so that the site engineer can select to exploit the order of each layer position oil reservoir as required.
The technology of switching sliding sleeve is no more than two kinds both at home and abroad, and a kind of is the steel wire switching tools realization switch motion of utilization standard, and another is the action that realizes switch by liquid controling pipe line.The sliding sleeve of two kinds of forms all can be realized switching function, but because the parameters such as the pressure coefficient of each oil reservoir, flow, stream pressure are different, and along with the exploitation carrying out also in continuous variation, the phenomenon of pouring in down a chimney that occurs each oil reservoir when therefore being difficult to avoid multilayer to exploit simultaneously, will waste stratum energy reduction recovery ratio in case phenomenon occurs pouring in down a chimney, therefore the method that generally still adopts each layer to exploit respectively, it is not high that this mode can cause production efficiency to be carried.
The utility model content
Technical problem to be solved in the utility model provides a kind of sliding sleeve for the Oil/gas Well separate zone production, with in the situation that reservoir pressure coefficient, flow, stream press indefinite each payzone of parameter can realize that multilayer exploits simultaneously and prevent from pouring in down a chimney, and standard-sized sheet, full cut-off function when possessing the later stage operation.
The technical scheme that the utility model adopts is: the sliding sleeve that is used for the Oil/gas Well separate zone production, comprise by top connection, center tap, cylindrical shell, the sliding sleeve body that one way valve joint and lower contact connect and compose successively, described cylindrical shell is provided with a circle the first through hole, circumferentially be provided with the check valve assembly that several are communicated with the sliding sleeve chamber body in the wall of described one way valve joint, be provided with the slip hollow shaft in the described sliding sleeve body, be provided with the elasticity positioning step that fluting forms on the slip hollow shaft, the wall of slip hollow shaft is provided with the second through hole that a circle can cooperate with the first through hole on the cylindrical shell, is provided with closing positioning groove and opening positioning groove of cooperating with elasticity positioning step on the hollow shaft of sliding on the described cylindrical shell.
Described check valve assembly consists of housing by one way valve body and one-way valve seat, is provided with in the housing between unidirectional valve head and the one-way valve seat and realizes one-way sealing, is provided with sand filter in the one-way valve seat.
Described one way valve joint is provided with urceolus described check valve assembly is covered.
Between described top connection and the center tap, between center tap and the cylindrical shell, be provided with the sealed packing combination between cylindrical shell and the one way valve joint, provide sealing to the different operating position of slip hollow shaft respectively.
The utility model adopts a plurality of check valve assemblies that the fluid passage is provided, in the situation that each reservoir pressure coefficient, flow, stream press parameter indefinite, utilize the energy on stratum self that each payzone is realized producing simultaneously, and avoid occuring the energy that phenomenon that hydrocarbon fluids pours in down a chimney to the low pressure payzone by the high pressure payzone takes full advantage of each layer oil reservoir, make the production efficiency maximization.Be provided with sand prevention mechanism on the check valve assembly and prevent blocking channel, check valve assembly is installed in sliding sleeve inside and can be prevented from colliding with by the urceolus protection.The inside of sliding sleeve is provided with slip hollow shaft moving up and down and detent mechanism, can realize by the steel wire instrument of standard full open and the contract fully of sliding sleeve passage, the function that provides the later stage operation to need, and full closing state can also prevent failure of check valve.The utility model had both possessed the switching function of conventional sliding sleeve, exploitation when can realize the multilayer position again.
Description of drawings
Fig. 1 is structure of the present utility model (production position) schematic diagram.
Fig. 2 is I place partial enlarged drawing among Fig. 1.
Fig. 3 is II place partial enlarged drawing among Fig. 1.
Fastening position schematic diagram when Fig. 4 is the utility model separate zone production.
Full open position view when Fig. 5 is the utility model separate zone production.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing a kind of separate zone production sliding sleeve of the present utility model is made a detailed description.
Such as Fig. 1-shown in Figure 3; a kind of separate zone production sliding sleeve of the present utility model; comprise the sliding sleeve body that is connected and composed successively by screw thread by top connection 2, center tap 6, cylindrical shell 7, one way valve joint 10 and lower contact 14; cylindrical shell 7 is provided with a circle the first through hole 19; the sealing of body realizes by O shape circle 4 and O shape circle 9; one way valve joint 10 is connected by API tubing thread 23 with lower contact 14 realizes sealing; urceolus 13 is connected by screw 11 with one way valve joint 10, and urceolus 13 is for the protection of check valve assembly 12.The material of sliding sleeve body is to be processed by the respective metal that is fit to hole condition, and the sliding sleeve body is the carrier of connected pipes 1, check valve assembly 12.Be provided with slip hollow shaft 3 in the described sliding sleeve body, the lower end of being connected with lower contact in the upper end of described top connection 2 connects respectively external oil pipe 1.
Circumferentially be provided with several check valve assemblies 12 in the wall of described one way valve joint 10, check valve assembly 12 is communicated with the sliding sleeve chamber body by the skewed slot 27 on cylindrical shell 7 bottoms, and check valve assembly 12 is connected with the one way valve joint by the NPT screw thread and is connected and realization seals.Described check valve assembly 12 is by one way valve body 121, one-way valve seat 126 is threaded connection, and by 124 sealings of O shape circle, form unidirectional valve housing, be provided with unidirectional valve head 122 in the housing and realize one-way sealing by O shape circle 123 and one-way valve seat 126, be provided with sand filter 125 its inside in the one-way valve seat 126 and prevent blocking channel for the filtration fine-structure mesh filters the hydrocarbon fluids that passes through, fluid enters the inner realization production of sliding sleeve by passage 15.
Be provided with slip hollow shaft 3 in the described sliding sleeve body, be provided with the elasticity positioning step 16 that fluting forms on the slip hollow shaft 3, the wall of slip hollow shaft 3 is provided with the second through hole 26 that a circle can cooperate with the first through hole 19 on the cylindrical shell 7, be provided with closing positioning groove 17 and opening positioning groove 18 of cooperating with elasticity positioning step 16 on the hollow shaft 3 of sliding on the cylindrical shell 7, be used for locking slip hollow shaft 3 work, close and opening, position shown in the figure one is duty.Be provided with sealed packing combination 5 between top connection 2 and the center tap 6; Also be provided with sealed packing combination 5 between center tap 6 and the cylindrical shell 7; Also be provided with sealed packing combination 5 between cylindrical shell 7 and the one way valve joint 10, provide sealing to 3 operating positions of slip hollow shaft respectively.
As shown in Figure 4, the utility model can the steel wire operation by standard when separate zone production realize sliding sleeve inside and outside close, passage that should closing one-way valve assembly 12 also will be closed the passage of through hole 19, is convenient to the operations such as acidifying pressure.Its implementation is to withstand the interior step 20 of slip hollow shaft 3 by the steel wire switching tools 22 of standard, vibration downwards, the slip hollow shaft move up into for 3 times lower seal packing assembly 5 simultaneously elasticity positioning step 16 enter and close positioning groove 17 location, slip hollow shaft 3 is by O shape circle 8 and 5 sealings of lower seal packing assembly, check valve assembly 12 is closed, and the hollow shaft of at this moment sliding 3 is with the first through hole 19 sealings on the cylindrical shell 7.
As shown in Figure 5, the full open of the utility model when separate zone production is to realize that by the steel wire operation of standard the mounting hole of link mandrel 3 and through hole 19 UNICOMs form passage, are convenient to the later stage machine and adopt operation.Its implementation is to withstand the interior step 21 of slip hollow shaft 3 by the steel wire switching tools 22 of standard, upwards vibration, move mounting hole and through hole 19 UNICOMs on the slip hollow shaft 3, positioning step 16 enters and opens positioning groove 18 location simultaneously, realize opening fully, the fluid of large flow can enter oil pipe 1 inside by through hole 19 smoothly.
Operating principle:
In the oil and gas development process, often have individual well and a plurality of mined beds occur; traditional production method is to isolate with packer between each layer position; middle by the oil pipe conducting; and by each layer position the exploitation that a sliding sleeve is controlled each layer position is installed, prevent that hydrocarbon fluids from pouring in down a chimney the recovery ratio that affects oil field development from the high pressure payzone to the low pressure payzone.Adopt traditional separate zone production pattern just must successively develop, along with the bottom in later stage pressure drop in debt can affect odd-numbered day output.Effect of the present utility model is by the one-way conduction principle, prevent that the high pressure payzone from pouring in down a chimney to the low pressure payzone, along with the pressure drop of high pressure payzone, in case the gas stream of low pressure payzone was known from experience and entered oil pipe and improve output when low pressure payzone pressure was higher than the pressure of this sliding sleeve installation site, realize multiple-zone production.When layer fluid upwards flowed along 24 directions of arrow instantly, the high-pressure fluid of lower floor one way valve 12 when the sliding sleeve position played reverse sealing function and can not flow out from sliding sleeve, stops pouring in down a chimney to sliding sleeve position payzone.Instantly after the stream of layer fluid 24 was pressed and descended in time, the hydrocarbon fluids of sliding sleeve position just can flow into oil pipe along 25 directions of arrow by one way valve 12 and realize simultaneously exploitation.
Claims (4)
1. sliding sleeve that is used for the Oil/gas Well separate zone production, it is characterized in that comprising by top connection, center tap, cylindrical shell, the sliding sleeve body that one way valve joint and lower contact connect and compose successively, described cylindrical shell is provided with a circle the first through hole, circumferentially be provided with the check valve assembly that several are communicated with the sliding sleeve chamber body in the wall of described one way valve joint, be provided with the slip hollow shaft in the described sliding sleeve body, be provided with the elasticity positioning step that fluting forms on the slip hollow shaft, the wall of slip hollow shaft is provided with the second through hole that a circle can cooperate with the first through hole on the cylindrical shell, is provided with closing positioning groove and opening positioning groove of cooperating with elasticity positioning step on the hollow shaft of sliding on the described cylindrical shell.
2. the sliding sleeve for the Oil/gas Well separate zone production according to claim 1, it is characterized in that described check valve assembly consists of housing by one way valve body and one-way valve seat, be provided with in the housing between unidirectional valve head and the one-way valve seat and realize one-way sealing, be provided with sand filter in the one-way valve seat.
3. the sliding sleeve for the Oil/gas Well separate zone production according to claim 1 and 2 is characterized in that described one way valve joint is provided with urceolus described check valve assembly is covered.
4. the sliding sleeve for the Oil/gas Well separate zone production according to claim 3, it is characterized in that between described top connection and the center tap, between center tap and the cylindrical shell, be provided with the sealed packing combination between cylindrical shell and the one way valve joint, provide sealing to the different operating position of slip hollow shaft respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220319560XU CN202707016U (en) | 2012-07-04 | 2012-07-04 | Sliding sleeve for oil gas well slicing extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220319560XU CN202707016U (en) | 2012-07-04 | 2012-07-04 | Sliding sleeve for oil gas well slicing extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707016U true CN202707016U (en) | 2013-01-30 |
Family
ID=47587325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220319560XU Withdrawn - After Issue CN202707016U (en) | 2012-07-04 | 2012-07-04 | Sliding sleeve for oil gas well slicing extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707016U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733786A (en) * | 2012-07-04 | 2012-10-17 | 湖南唯科拓石油科技服务有限公司 | Sliding sleeve for mining oil-gas well in layering manner |
| CN107100606A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | A kind of full-bore multistage subsection fracturing sliding bush |
| CN114288545A (en) * | 2013-08-01 | 2022-04-08 | 康沃特克科技公司 | Self-closing bag connector |
-
2012
- 2012-07-04 CN CN201220319560XU patent/CN202707016U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733786A (en) * | 2012-07-04 | 2012-10-17 | 湖南唯科拓石油科技服务有限公司 | Sliding sleeve for mining oil-gas well in layering manner |
| CN114288545A (en) * | 2013-08-01 | 2022-04-08 | 康沃特克科技公司 | Self-closing bag connector |
| CN107100606A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | A kind of full-bore multistage subsection fracturing sliding bush |
| CN107100606B (en) * | 2016-02-19 | 2023-05-02 | 中石化石油工程技术服务有限公司 | Full latus rectum multistage staged fracturing sliding sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHI YU Free format text: FORMER OWNER: HUNAN VICTOR PETROLEUM TECHNOLOGY SERVICE CO., LTD. Effective date: 20130220 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130220 Address after: 410001 Zhenhua Road 199, Pioneer Center of environmental protection science and Technology Industrial Park, Yuhua District, Hunan, Changsha Patentee after: Shi Yu Address before: 410001 Zhenhua Road 199, Pioneer Center of environmental protection science and Technology Industrial Park, Yuhua District, Hunan, Changsha Patentee before: Hunan Victor Petroleum Technology Service Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: HUNAN VICTOR PETROLEUM TECHNOLOGY SERVICE CO., LTD Free format text: FORMER OWNER: SHI YU Effective date: 20130325 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130325 Address after: 410001 Zhenhua Road 199, Pioneer Center of environmental protection science and Technology Industrial Park, Yuhua District, Hunan, Changsha Patentee after: Hunan Victor Petroleum Technology Service Co., Ltd. Address before: 410001 Zhenhua Road 199, Pioneer Center of environmental protection science and Technology Industrial Park, Yuhua District, Hunan, Changsha Patentee before: Shi Yu |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20131113 |
|
| RGAV | Abandon patent right to avoid regrant |