CN105134133A - Steel wire dropping-fishing self-balance setting packer - Google Patents
Steel wire dropping-fishing self-balance setting packer Download PDFInfo
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- CN105134133A CN105134133A CN201510595925.XA CN201510595925A CN105134133A CN 105134133 A CN105134133 A CN 105134133A CN 201510595925 A CN201510595925 A CN 201510595925A CN 105134133 A CN105134133 A CN 105134133A
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- packer
- plug
- guide head
- cavity
- pressure
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Abstract
The invention relates to a steel wire dropping-fishing self-balance setting packer. The packer comprises a center rod, the upper end and the lower end of the center rod are provided with an upper joint and a guide head respectively, the diameter of the upper portion of the center rod is larger than that of the lower portion of the center rod, and accordingly a concave sleeved connection portion is formed between the center rod and the guide head. The interior of the sleeved connection portion is an open cavity. An upper pressure-transmitting hole and a lower pressure-transmitting hole are formed in the upper portion and the middle of the cavity respectively. A sealing steel ball is connected with the portion, between the upper pressure-transmitting hole and the lower pressure-transmitting hole, of the sleeved connection portion in a sleeving mode. A plug is arranged in the cavity and is connected with the sleeved connection portion and the guide head through pins. The plug shields the lower pressure-transmitting hole. The problem that the upper portion and the lower portion of the packer have pressure difference, a steel wire can not be pulled out of the packer and accordingly the packer is plugged can be solved. Before the packer is set, the packer is lowered to a fixed ball seat through the steel wire, and lower pressure is prevented. After the packer is set, an oil pipe presses and eliminates blocking in the packer, upper pressure and lower pressure of the backer are balanced, the packer is lifted to a well mouth under the situation that no pressure difference exists, and a tubular column is kept unblocked.
Description
Technical field
The application relates to the wire Launching and Bailing self-balancing setting plug for set packer in a kind of oil gas well completion operation.
Background technology
Blanking plug is a kind of for completing the downhole tool that hydraulic packer sets, for the conventional steel wires pulling blanking plug of set packer, after formation leakage well set packer, can pressure reduction be there is up and down in blanking plug, with when steel wire being carried blanking plug, steel wire tension may exceed pulling force allowable, is forced to shear-steel silk, cause blanking plug to trip out, can only on the risk of repairing.Therefore, need a kind of self-balancing blanking plug to solve and cannot trip out blanking plug problem because blanking plug exists pressure reduction steel wire up and down, widen the scope of application of this technique, improve completion practice one-time success rate.
Summary of the invention
The object of the application proposes a kind of solution due to blanking plug to there is the wire Launching and Bailing self-balancing setting plug that pressure reduction steel wire cannot trip out blanking plug problem up and down.
The object of the application is achieved in that wire Launching and Bailing self-balancing setting plug comprises center-pole, top connection and guide head is installed respectively at the upper and lower two ends of center-pole, center-pole upper diameter is greater than lower diameter, thus between center-pole and guide head, form the socket part of a depression, it is opening hollow cavity in this socket part, on this cavity, middle part is offered respectively, lower pressure transmission hole, upper, socket part between lower pressure transmission hole is socketed with sealed steel ball, plug is provided with stifled in aforementioned cavity, plug is stifled to be connected with socket part and guide head by pin, plug is stifled to be covered lower pressure transmission hole.
Owing to carrying out technique scheme, the application can solve and cannot trip out blanking plug and the problem that blocks because packer exists pressure reduction steel wire up and down, before set packer, with steel wire by this application down to fixed ball seat, block low pressure; After set packer, oil pipe is suppressed and is destroyed blocking in the application, balance the application two-way pressure, and when putting forward the application to well head without when pressure reduction on, tubing string maintenance is unimpeded.
Accompanying drawing illustrates: the technical scheme of the application is provided by following drawings and Examples:
Fig. 1 is wire Launching and Bailing self-balancing setting plug structural representation.
Legend: 1, top connection, 2, center-pole, 3, upper pressure transmission hole, 4, sealed steel ball, 5, sealing ring, 6, lower pressure transmission hole, 7, pin, 8, plug is stifled, 9, overlap after guide head, 10, guide head.
Detailed description of the invention:
The application by the restriction of following embodiment, can not determine concrete embodiment according to the technical scheme of the application and actual conditions.
Embodiment: as shown in Figure 1, wire Launching and Bailing self-balancing setting plug comprises center-pole 2, top connection 1 and guide head 10 is installed respectively at center-pole about 2 two ends, center-pole 2 upper diameter is greater than lower diameter, thus between center-pole 2 and guide head 10, form the socket part of a depression, be opening hollow cavity in this socket part, on this cavity, middle part offers upper and lower pressure transmission hole 3,6 respectively.Socket part between upper and lower pressure transmission hole 3,6 is socketed with sealed steel ball 4.In aforementioned cavity, be provided with plug stifled 8, plug stifled 8 is connected with socket part and guide head 10 by pin 7, and lower pressure transmission hole 6 covers by plug now stifled 8.
Described guide head 10 overlaps 9 after comprising the guide head at anterior pointed nose and rear portion, the uncovered cavity in upper end is offered in the pointed nose of described guide head 10 front portion, this cavity top offers internal thread, this internal thread and center-pole 2 front end spin, make opening hollow cavity conducting in described cavity and aforementioned socket part, and form an enclosed cavity.The plug stifled 8 that the pointed nose internal cavity of described guide head 10 front portion is honored as a queen in order to place solution.Overlap 9 after described guide head and fit over center-pole 2 front portion, and be fixedly linked with aforesaid pin 7,9 are overlapped except playing the effect of firm guide head 10 after guide head, also firm effect is played to pin 7 simultaneously, and play certain sealing function, stop large granular impurity to spin position impact several times to guide head 10 and center-pole 2, prevent guide head 10 from getting loose.
Described plug stifled 6 is cylinder, and its underpart and pin 7 are fixedly linked, and blocks portion's overcoat and has sealing ring 5 being positioned at the plug on the upside of lower pressure transmission hole 6.Described plug stifled 6 is highly not more than spacing between upper and lower pressure transmission hole 3,6, and is also not more than spacing between lower pressure transmission hole 6 to guide head 10 internal cavity bottom or bottom surface.
During use, top connection 1 is connected with steel wire operation tool, the application sends in well by steel wire, during to fixed ball seat, sealed steel ball 4 to be seated in fixed ball seat and to form sealing, after packer setting is complete, suppress in oil pipe, upper pressure enters from the upper pressure transmission hole 3 of center-pole 2 and acts on plug stifled 8, pressure promotes plug stifled 8 and cuts off pin 7, and continuing descending, plug stifled 8 moves to after in guide head 10, sealing ring 5 seal failure, center-pole 2 two-way pressure is linked up, after pressure balance, above carry steel wire, the application is tripped out well head.
Above technical characteristic constitutes the most preferred embodiment of the application, and it has stronger compliance and best implementation result, can increase and decrease inessential technical characteristic according to actual needs, meet the needs of different situations.
Claims (4)
1. a wire Launching and Bailing self-balancing setting plug, comprise center-pole, top connection and guide head is installed respectively at the upper and lower two ends of center-pole, it is characterized in that: center-pole upper diameter is greater than lower diameter, thus between center-pole and guide head, form the socket part of a depression, it is opening hollow cavity in this socket part, on this cavity, middle part is offered respectively, lower pressure transmission hole, upper, socket part between lower pressure transmission hole is socketed with sealed steel ball, plug is provided with stifled in aforementioned cavity, plug is stifled to be connected with socket part and guide head by pin, plug is stifled to be covered lower pressure transmission hole.
2. wire Launching and Bailing self-balancing setting plug as claimed in claim 1, it is characterized in that: it is plane that described plug blocks up bottom, blocking portion's overcoat at plug has sealing ring.
3. wire Launching and Bailing self-balancing setting plug as claimed in claim 1, is characterized in that: offer cavity in described guide head, and this cavity blocks up in order to the plug placed solution and be honored as a queen.
4. wire Launching and Bailing self-balancing setting plug as claimed in claim 1, it is characterized in that: aforementioned cavity opening end, namely guide head internal cavity is stretched in its underpart, and spins with it, two chamber conductings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595925.XA CN105134133A (en) | 2015-09-18 | 2015-09-18 | Steel wire dropping-fishing self-balance setting packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510595925.XA CN105134133A (en) | 2015-09-18 | 2015-09-18 | Steel wire dropping-fishing self-balance setting packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134133A true CN105134133A (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510595925.XA Pending CN105134133A (en) | 2015-09-18 | 2015-09-18 | Steel wire dropping-fishing self-balance setting packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134133A (en) |
Citations (14)
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|---|---|---|---|---|
| US3252516A (en) * | 1962-11-05 | 1966-05-24 | Baker Oil Tools Inc | Hydraulically operated well packer apparatus |
| US6427773B1 (en) * | 2000-06-12 | 2002-08-06 | Lonkar Services Ltd. | Flow through bypass tubing plug |
| CN101265793A (en) * | 2008-04-24 | 2008-09-17 | 中国海洋石油总公司 | Y tube self-balance type down-hole switch |
| CN201826805U (en) * | 2010-10-18 | 2011-05-11 | 中国石油化工股份有限公司 | Tubing plug for oil and gas field |
| CN202165065U (en) * | 2011-08-10 | 2012-03-14 | 北京托普威尔石油技术服务有限公司 | Pipe column blanking plug |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN202360058U (en) * | 2011-11-15 | 2012-08-01 | 中国石油天然气集团公司 | Fishable oil pipe plug |
| CN203285408U (en) * | 2013-04-24 | 2013-11-13 | 中国石油天然气股份有限公司 | High-pressure separate-layer water injection string |
| CN203476283U (en) * | 2013-10-09 | 2014-03-12 | 中国石油天然气股份有限公司 | Water injection well resistance-encountering prevention concentric throwing and fishing switch |
| CN203640701U (en) * | 2013-10-29 | 2014-06-11 | 中国石油化工股份有限公司 | Salvageable sealing ball water distributor |
| CN203769709U (en) * | 2014-04-15 | 2014-08-13 | 骆驼石油天然气技术服务（天津）有限公司 | Blanking plug operated under pressure and opened with water injection |
| CN204126591U (en) * | 2014-10-15 | 2015-01-28 | 中国石油天然气股份有限公司 | Complete equipment for circularly plugging tail pipe in operation under pressure |
| CN104727775A (en) * | 2015-03-18 | 2015-06-24 | 新疆华隆油田科技股份有限公司 | Adjustable backflow-preventing blanking plug |
| CN205000947U (en) * | 2015-09-18 | 2016-01-27 | 中国石油化工股份有限公司 | Steel wire is thrown and is dragged for a self -balancing seat blanking plug |
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2015
- 2015-09-18 CN CN201510595925.XA patent/CN105134133A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3252516A (en) * | 1962-11-05 | 1966-05-24 | Baker Oil Tools Inc | Hydraulically operated well packer apparatus |
| US6427773B1 (en) * | 2000-06-12 | 2002-08-06 | Lonkar Services Ltd. | Flow through bypass tubing plug |
| CN101265793A (en) * | 2008-04-24 | 2008-09-17 | 中国海洋石油总公司 | Y tube self-balance type down-hole switch |
| CN201826805U (en) * | 2010-10-18 | 2011-05-11 | 中国石油化工股份有限公司 | Tubing plug for oil and gas field |
| CN202165065U (en) * | 2011-08-10 | 2012-03-14 | 北京托普威尔石油技术服务有限公司 | Pipe column blanking plug |
| CN202360058U (en) * | 2011-11-15 | 2012-08-01 | 中国石油天然气集团公司 | Fishable oil pipe plug |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN203285408U (en) * | 2013-04-24 | 2013-11-13 | 中国石油天然气股份有限公司 | High-pressure separate-layer water injection string |
| CN203476283U (en) * | 2013-10-09 | 2014-03-12 | 中国石油天然气股份有限公司 | Water injection well resistance-encountering prevention concentric throwing and fishing switch |
| CN203640701U (en) * | 2013-10-29 | 2014-06-11 | 中国石油化工股份有限公司 | Salvageable sealing ball water distributor |
| CN203769709U (en) * | 2014-04-15 | 2014-08-13 | 骆驼石油天然气技术服务（天津）有限公司 | Blanking plug operated under pressure and opened with water injection |
| CN204126591U (en) * | 2014-10-15 | 2015-01-28 | 中国石油天然气股份有限公司 | Complete equipment for circularly plugging tail pipe in operation under pressure |
| CN104727775A (en) * | 2015-03-18 | 2015-06-24 | 新疆华隆油田科技股份有限公司 | Adjustable backflow-preventing blanking plug |
| CN205000947U (en) * | 2015-09-18 | 2016-01-27 | 中国石油化工股份有限公司 | Steel wire is thrown and is dragged for a self -balancing seat blanking plug |
Non-Patent Citations (4)
| Title |
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| 张国华等: "新型空心分注工艺的研究与应用", 《断块油气田》 * |
| 李娟: "析分层注水工艺现状及发展趋势", 《才智》 * |
| 李泉美等: "暂堵坐封堵塞器的设计与应用", 《钻采工艺》 * |
| 赵进: "热补偿扩张式封隔器与堵塞器", 《国外油田工程》 * |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151209 |
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| WD01 | Invention patent application deemed withdrawn after publication |