CN202544824U - Concentric double-pipe hierarchical injection pipe column - Google Patents
Concentric double-pipe hierarchical injection pipe column Download PDFInfo
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- CN202544824U CN202544824U CN2012201197812U CN201220119781U CN202544824U CN 202544824 U CN202544824 U CN 202544824U CN 2012201197812 U CN2012201197812 U CN 2012201197812U CN 201220119781 U CN201220119781 U CN 201220119781U CN 202544824 U CN202544824 U CN 202544824U
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- tubing string
- pipe column
- safety valve
- injection
- packer
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Abstract
The utility model relates to a concentric double-pipe hierarchical injection pipe column which is characterized by comprising an inner pipe column. A subsurface safety valve and a location joint are arranged on an upper portion of the inner pipe column, an isolation seal assembly is arranged on a lower portion of the inner pipe column and inserted into an isolation packer internally settled with a subsurface sleeve, a big-end-up outer tapered pipe column is arranged outside the inner pipe column, a production packer positioned between the subsurface safety valve and the location joint is arranged between an upper portion of the outer pipe column and the inner pipe column and settled between the outer pipe column and the inner pipe column, an annular safety valve is connected onto the production packer, a seal assembly is connected with a lower portion of the outer pipe column and inserted into an upper packer internally settled with the subsurface sleeve, and the subsurface safety valve and the annular safety valve are connected with a hydraulic control system of a well head respectively through a hydraulic control pipeline. The concentric double-pipe hierarchical injection pipe column can be widely applied to operations of water injection and polymer injection of offshore oil exploitation.
Description
Technical field
The utility model relates to the water filling notes that use in a kind of petroleum production engineering and gathers tubing string, particularly about a kind of concentric double pipe layering injection string.
Background technology
Along with the continuous exhaustion of petroleum resources, petroleum industry more and more requires to become more meticulous to oil field development.Meticulous development requires is reasonably annotated reservoir and is adopted, and wherein, seperated layer water injection/gather the displacement of reservoir oil is meticulous exploitation and the important means that guarantees the stable yields raising the output.The layering injection technique is more at present, mainly contains technology such as single tube injection, two-tube concentric injection and two-tube branch notes in general.
The single tube injection technique comprises general injection and layering injection.But which kind of single tube injection technique no matter all can not guarantee the injection volume of implanted layer also accurately to measure to each implanted layer.Concentric double pipe layering injection technique is adopted in the oil field, land mostly, and it can guarantee every layer of injection rate, and metering is convenient.But annular space does not have safety control in the existing concentric double pipe injection string, causes well head and implanted layer directly to be linked up, and therefore can't satisfy maritime safety operation and environmental requirement.Improved the control of the concentric double pipe ascending pipe band of column and be provided with safety valve, but its complex structure, constructional difficulties, and injected media contacts with protective casing is not suitable for injecting and has a Korrosionsmedium (like polymer etc.).Though adopt two-tube injection technique can realize that layering injects, be lowered to, workover treatment is very difficult, therefore, employing is should technology also just fewer and feweri.
Summary of the invention
To the problems referred to above, the purpose of the utility model provides and a kind ofly can satisfy the maritime safety environmental requirement, can realize the concentric double pipe layering injection string that layering is injected again.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: a kind of concentric double pipe layering injection string; It is characterized in that: it comprises tubing string in, and said interior tubing string top is provided with a storm valve and and is located joint, the bottom one isolating seal assembly of said interior tubing string; Said isolating seal assembly be inserted in one with down-hole casing in the isolation packer that sets; The outer setting of tubing string has a up big and down small outer tubing string of reducing in said, is provided with one between the top of said outer tubing string and the said interior tubing string at said storm valve be located the production packer between the joint, and production packer sets outside said between the tubing string and interior tubing string; Be connected with an annulus safety valve on the said production packer; The bottom of said outer tubing string is connected with a seal assembly, said seal assembly be inserted in one with down-hole casing in the upper packer that sets, said storm valve and annulus safety valve are connected the hydraulic control system of well head respectively through the hydraulic control pipeline.
The utility model is owing to take above technical scheme, and it has the following advantages:
1, therefore the utility model guarantees that the injection of each layer liquid is sufficient because two independent injection channel layerings of employing are injected, and can make the injection volume metering convenient.2, the utility model has been owing to installed safety control respectively on two autonomous channels, and is provided with the system that independently controls, and therefore guarantees that security risk is controlled between influx time.3, the utility model is owing to adopt the outer tubing string of up big and down small reducing, when therefore tubing string normally inserts being lowered to, setting of isolating seal assembly in guaranteeing, can also reduce the insertion difficulty with seal assembly that is lowered to of outer tubing string.4, but the size of outer tubing string of the utility model and interior tubing string adopts optimum organization, therefore can realize many cover oil reservoir layering fluid injection schemes.5, therefore the utility model guarantees that injected media does not contact with outer tubing string, has improved the application life of ascending pipe owing to adopt two autonomous channels to be communicated with each implanted layer respectively.6, simple, the technology maturation of the utility model operating procedure can be widely used in offshore oil exploitation water filling notes and gather among the operation.
Description of drawings
Fig. 1 is the structural representation of the utility model
Fig. 2 is that schematic flow sheet is injected in the utility model layering
Fig. 3 is that the anti-implanted layer of going up of the utility model returns and gushes structural representation
Fig. 4 is that the anti-implanted layer down of the utility model returns and gushes structural representation
The specific embodiment
With implementing the utility model is carried out detailed description below in conjunction with accompanying drawing.
Like Fig. 1, shown in Figure 2; The utility model comprises tubing string 1 in; Interior tubing string 1 top is provided with a storm valve 2 and and is located joint 3; The bottom of interior tubing string 1 connects an isolating seal assembly 4, through tubing string 1 in being lowered to isolating seal assembly 4 be inserted in one with down-hole casing 5 in the isolation packer 6 that sets, the implanted layers in the down-hole casing 5 are separated into 7,8 liang of implanted layers of upper and lower implanted layer; Connection one is covered with the sleeve pipe 9 of preforation tunnel in down-hole casing 5 bottoms, and sleeve pipe 9 places implanted layer, and the liquid of injection is through the preforation tunnel injection oil reservoir of each tubing string through sleeve pipe 9; Tubing string 10 outside the outer setting of interior tubing string 1 has a up big and down small reducing; Be provided with one between the top of outer tubing string 10 and the interior tubing string 1 at storm valve 2 be located the production packer 11 between the joint 3; Production packer 11 is suppressed or is lowered to blanking plug and suppresses and set through pitching; Ball or blanking plug place and are located joint 3 places; Production packer 11 is set outside between the tubing string 10 and interior tubing string 1, on production packer 11, be connected with an annulus safety valve 12, the bottom of outer tubing string 10 is connected with a seal assembly 13; Through be lowered to outer tubing string 10 with seal assembly 13 be inserted in one with down-hole casing 5 in the upper packer 14 that sets, will go up implanted layer 7 and isolate with well head.Storm valve 2 and annulus safety valve 12 are connected the hydraulic control system of well head respectively through hydraulic control pipeline 15,16.
Among above-mentioned each embodiment, as shown in Figure 2, interior tubing string 1 through storm valve 2 be located joint 3 form one be connected under the autonomous channel of implanted layer 8, the hydraulic control system control storm valve 2 of following implanted layer 8 through well head open or close the connection well head; Gap between outer tubing string 10 and the interior tubing string 1 and annulus safety valve 12 are formed an autonomous channel that is communicated with implanted layer 7, and last implanted layer 7 opens or closes the connection well head through what the hydraulic control system of well head was controlled annulus safety valve 12.
Among above-mentioned each embodiment; As shown in Figure 3; If on go into the wellhead assembly that emergencies or outer tubing string 10 take place layer 7 and break down, the well head hydraulic control system is closed annulus safety valve 12 through hydraulic control pipeline 16, the high-pressure fluid of last implanted layer 7 can't arrive well head owing to closing of annulus safety valve 12; Guarantee that wellhead assembly is not damaged, and the injection operation of interior tubing string 1 is not influenced by it.
Among above-mentioned each embodiment; As shown in Figure 4; If the wellhead assembly of implanted layer 8 generation emergencies or interior tubing string 1 breaks down down, the well head hydraulic control system is closed storm valve 2 through hydraulic control pipeline 15, and the high-pressure fluid of following implanted layer 8 can't arrive well head owing to closing of storm valve 2; Guarantee that wellhead assembly is not damaged, and the injection operation of outer tubing string 10 is not influenced by it.
Above-mentioned each embodiment only is used to explain the utility model; Wherein the structure of each parts, connected mode etc. all can change to some extent; Every equivalents of on the basis of the utility model technical scheme, carrying out and improvement all should not got rid of outside the protection domain of the utility model.
Claims (1)
1. concentric double pipe layering injection string; It is characterized in that: it comprises tubing string in; Tubing string top is provided with a storm valve and and is located joint in said; The bottom one isolating seal assembly of tubing string in said, said isolating seal assembly be inserted in one with down-hole casing in the isolation packer that sets, said in the outer setting of tubing string the one up big and down small outer tubing string of reducing is arranged; The top of said outer tubing string and said in be provided with one between the tubing string at said storm valve be located the production packer between the joint; Production packer sets outside said and between the tubing string and interior tubing string, is connected with an annulus safety valve on the said production packer, and the bottom of said outer tubing string is connected with a seal assembly; Said seal assembly be inserted in one with down-hole casing in the upper packer that sets, said storm valve and annulus safety valve are connected the hydraulic control system of well head respectively through the hydraulic control pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201197812U CN202544824U (en) | 2012-03-27 | 2012-03-27 | Concentric double-pipe hierarchical injection pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201197812U CN202544824U (en) | 2012-03-27 | 2012-03-27 | Concentric double-pipe hierarchical injection pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544824U true CN202544824U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201197812U Expired - Lifetime CN202544824U (en) | 2012-03-27 | 2012-03-27 | Concentric double-pipe hierarchical injection pipe column |
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| CN (1) | CN202544824U (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966338A (en) * | 2012-11-27 | 2013-03-13 | 中国石油天然气集团公司 | Single well water production and injection process system capable of measuring flow rate and pressure |
| CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Device and method for exploitation for single-well injection-production |
| CN103953319A (en) * | 2014-04-28 | 2014-07-30 | 中国石油天然气股份有限公司 | Gas injection pipe column and method for concentrically layered ignition |
| CN104295243A (en) * | 2013-10-29 | 2015-01-21 | 中国石油化工股份有限公司 | Completion pipe column and completion technology for oil-gas well |
| CN104879098A (en) * | 2015-06-12 | 2015-09-02 | 中国海洋石油总公司 | Concentric double-pipe gas well production pipe column |
| CN104989325A (en) * | 2015-06-12 | 2015-10-21 | 中国海洋石油总公司 | Method for producing gas by using production pipe column of parallel double-pipe gas well |
| CN105275411A (en) * | 2015-09-10 | 2016-01-27 | 山东墨龙石油机械股份有限公司 | Three-layer tubing string separated injection device |
| CN105443092A (en) * | 2016-01-05 | 2016-03-30 | 沈阳华威石油机械制造有限公司 | Four-tube layered water injection technology tubular column |
| WO2017028322A1 (en) * | 2015-08-17 | 2017-02-23 | 中国石油大学(华东) | Horizontal well staged fracturing oil production method by injection and production in same 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 |
| CN107829704A (en) * | 2017-12-27 | 2018-03-23 | 成都百胜野牛科技有限公司 | A kind of oil and gas well structure and Oil/gas Well production method |
| CN108222853A (en) * | 2017-05-02 | 2018-06-29 | 中国石油化工股份有限公司 | A kind of two-tube water injection string of offshore oilfield and method |
| CN110080731A (en) * | 2019-04-30 | 2019-08-02 | 克拉玛依四维石油科技有限公司 | Big pressure difference laminated distributor under well fills the water control set for adjusting to Dual-channel type with one heart |
| CN112302593A (en) * | 2019-08-01 | 2021-02-02 | 中国石油天然气股份有限公司 | Water is gathered and is driven and join in marriage notes ware and water and gather and drive integration intelligence and divide water system of spouting |
| CN113431539A (en) * | 2021-07-05 | 2021-09-24 | 湖北茂思晟石油新技术开发有限公司 | Throwing-fishing type cableless concentric intelligent water distributor device |
| CN114482943A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Layered polymer injection pipe column for layered sand control well and use method |
-
2012
- 2012-03-27 CN CN2012201197812U patent/CN202544824U/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966338A (en) * | 2012-11-27 | 2013-03-13 | 中国石油天然气集团公司 | Single well water production and injection process system capable of measuring flow rate and pressure |
| CN103184859B (en) * | 2013-03-18 | 2015-09-09 | 中国石油天然气股份有限公司 | For quarrying apparatus and the method for single-well injection-production |
| CN103184859A (en) * | 2013-03-18 | 2013-07-03 | 中国石油天然气股份有限公司 | Device and method for exploitation for single-well injection-production |
| CN104295243A (en) * | 2013-10-29 | 2015-01-21 | 中国石油化工股份有限公司 | Completion pipe column and completion technology for oil-gas well |
| CN103953319A (en) * | 2014-04-28 | 2014-07-30 | 中国石油天然气股份有限公司 | Gas injection pipe column and method for concentrically layered ignition |
| CN104989325B (en) * | 2015-06-12 | 2017-10-13 | 中国海洋石油总公司 | A kind of method using two-tube gas well liquid loading tubing string gas production arranged side by side |
| CN104879098A (en) * | 2015-06-12 | 2015-09-02 | 中国海洋石油总公司 | Concentric double-pipe gas well production pipe column |
| CN104989325A (en) * | 2015-06-12 | 2015-10-21 | 中国海洋石油总公司 | Method for producing gas by using production pipe column of parallel double-pipe gas well |
| WO2017028322A1 (en) * | 2015-08-17 | 2017-02-23 | 中国石油大学(华东) | Horizontal well staged fracturing oil production method by injection and production in same well |
| CN105275411A (en) * | 2015-09-10 | 2016-01-27 | 山东墨龙石油机械股份有限公司 | Three-layer tubing string separated injection device |
| CN105443092B (en) * | 2016-01-05 | 2018-10-02 | 沈阳华威石油机械制造有限公司 | A kind of four pipe layered water injection process pipe columns |
| CN105443092A (en) * | 2016-01-05 | 2016-03-30 | 沈阳华威石油机械制造有限公司 | Four-tube layered water injection technology tubular column |
| 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 |
| CN108222853A (en) * | 2017-05-02 | 2018-06-29 | 中国石油化工股份有限公司 | A kind of two-tube water injection string of offshore oilfield and method |
| CN108222853B (en) * | 2017-05-02 | 2019-08-09 | 中国石油化工股份有限公司 | A kind of two-tube water injection string of offshore oilfield and method |
| CN107829704A (en) * | 2017-12-27 | 2018-03-23 | 成都百胜野牛科技有限公司 | A kind of oil and gas well structure and Oil/gas Well production method |
| CN110080731A (en) * | 2019-04-30 | 2019-08-02 | 克拉玛依四维石油科技有限公司 | Big pressure difference laminated distributor under well fills the water control set for adjusting to Dual-channel type with one heart |
| CN112302593A (en) * | 2019-08-01 | 2021-02-02 | 中国石油天然气股份有限公司 | Water is gathered and is driven and join in marriage notes ware and water and gather and drive integration intelligence and divide water system of spouting |
| CN112302593B (en) * | 2019-08-01 | 2022-11-01 | 中国石油天然气股份有限公司 | Water polymer flooding injection allocation device and water polymer flooding integrated intelligent separate injection system |
| CN114482943A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Layered polymer injection pipe column for layered sand control well and use method |
| CN113431539A (en) * | 2021-07-05 | 2021-09-24 | 湖北茂思晟石油新技术开发有限公司 | Throwing-fishing type cableless concentric intelligent water distributor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |