CN203476264U - Recoverable drill-down blocking device in oil and gas field - Google Patents
Recoverable drill-down blocking device in oil and gas field Download PDFInfo
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- CN203476264U CN203476264U CN201320511641.4U CN201320511641U CN203476264U CN 203476264 U CN203476264 U CN 203476264U CN 201320511641 U CN201320511641 U CN 201320511641U CN 203476264 U CN203476264 U CN 203476264U
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- tool barrel
- gas field
- blocking device
- tool
- oil
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Abstract
The utility model relates to a recoverable drill-down blocking tool used in an oil and gas field, in particular to a recoverable drill-down blocking device in the oil and gas field. The recoverable drill-down blocking device at least comprises an upper connector, a blocking unit, a tool barrel and a lower connector and is characterized in that the tool barrel is of a hollow cylindrical structure, the upper end and the lower end of the tool barrel are respectively provided with a screw thread, a slotting hole is formed in the middle of the tool barrel, and a collecting basket is fixed to the bottom inside the tool barrel; the upper connector and the lower connector are fixedly connected with the upper end and the lower end of the tool barrel through the screw threads respectively, and the lower connector is fixedly connected with a blind blocking part; the middle of the blocking unit and the upper end of the tool barrel are anchored through a shearing dowel, and the upper end and the lower end of the blocking unit are respectively provided with a sealing ring. According to the recoverable drill-down blocking device in the oil and gas field, the blocking unit can be recycled after the oil and gas field is drilled down, subsequent complex well repairing caused when the block unit falls into a well can be avoided, the tool can be repeatedly used after being taken out and maintained, and the environment-friendly and efficient well repairing concept is expressed.
Description
Technical field
The utility model relates to the lower brill calker that oil gas field is used, and is the recyclable lower brill blocking device of a kind of oil gas field.
Background technology
Operating Pressure trips out tubing string, change or check former oil pipe after need to be again lowered to.In trip-out operation process with pressure, can adopt salvagable steel wire bridging plug or electric cable bridge plug shutoff oil pipe inner chamber, prevent that gas guest performer from guaranteeing the safety that pulls out of hole; Therefore tripping operation stops up because oil-pipe bridge plug cannot be salvaged, retrievable bridge plug well depth is thrown in after surpassing 3000m, fishing success ratio very low can not employings all, the calker adopting is at present destroyed the rear blanking plug well that falls, and causes very large difficulty to follow-up gas well workover treatment.
Utility model content
The purpose of this utility model is to provide the recyclable lower brill blocking device of a kind of oil gas field, can realize under oil gas field and after brill, blanking plug being reclaimed, can avoid the blanking plug well that falls to cause follow-up well workover complicated, instrument trips out rear maintenance and can reuse, and has embodied green, environmental protection, efficient workover treatment theory.
The technical solution of the utility model is the recyclable lower brill blocking device of a kind of oil gas field, which comprises at least top connection, blanking plug, tool barrel and lower contact, it is characterized in that: tool barrel is hollow cylindrical structure, its upper/lower terminal is all provided with screw thread, the middle part of tool barrel is provided with grooved bore, and the bottom in tool barrel is fixed with accepts basket; Top connection is fixedly connected with the upper/lower terminal of tool barrel by screw thread respectively with lower contact, and lower contact is fixedly connected with blind plugging; The middle part of blanking plug is by the upper end grappling of shear pin and tool barrel, and the upper/lower terminal of blanking plug has sealing ring.
The external diameter of described tool barrel is 73mm, and the screw thread of its upper/lower terminal is that 2-7/8 external upset tubing standard screw thread is 93mm.
Described grooved bore length is 150mm to 200mm.
The unidirectional pressure-bearing of described blanking plug is 70MPa, and it is 15MPa to 21MPa that blanking plug is opened liquid nitrogen pump pressure.
The entire length of this calker is 1050mm to 1100mm.
Feature of the present utility model is the grooved bore by designing on tool barrel, can ditch unsaturated zone after blanking plug is destroyed and oil pipe in gas channel; Meanwhile, tool barrel below is provided with accepts basket, and connects the lower contact with blind plugging, has guaranteed to destroy rear blanking plug and has fallen into and accept basket, and the well that do not fall, has reduced follow-up gas well well workover construction complicated.
Accompanying drawing explanation
Below in conjunction with specific embodiment, the utility model is further described.
Fig. 1 is the structural representation of the recyclable lower brill blocking device of a kind of oil gas field.
In figure: 1, top connection; 2, shear pin; 3, blanking plug; 4, tool barrel; 5, grooved bore; 6, accept basket; 7, lower contact; 8, blind plugging.
The specific embodiment
The recyclable lower brill blocking device of a kind of oil gas field, which comprises at least top connection 1, blanking plug 3, tool barrel 4 and lower contact 7, it is characterized in that: tool barrel 4 is hollow cylindrical structures, its upper/lower terminal is all provided with screw thread, the middle part of tool barrel 4 is provided with grooved bore 5, and the bottom in tool barrel 4 is fixed with accepts basket 6; Top connection 1 is fixedly connected with the upper/lower terminal of tool barrel 4 by screw thread respectively with lower contact 7, and lower contact 7 is fixedly connected with blind plugging 8; The middle part of blanking plug 3 is the upper end grappling with tool barrel by shear pin 2, and the upper/lower terminal of blanking plug 3 has sealing ring.
Embodiment 2
As shown in Figure 1, the recyclable lower brill blocking device of a kind of oil gas field consists of jointly tool barrel 4, blanking plug 3 and top connection 1, lower contact 7.
The middle part of tool barrel 4 is provided with the opening slot 5 that length is 150mm to 200mm, and opening slot 5 can be linked up the gas channel of stratum and oil pipe inner chamber.
The below, inside of tool barrel 4 is provided with accepts basket 6, accepts basket 6 for catching the blanking plug 3 dropping, and prevents that blanking plug 3 from entering in well.
Blanking plug 3 adopts the blanking plug of unidirectional pressure-bearing 70MPa, and it opens liquid nitrogen pump pressure is 15MPa to 21MPa.
The middle part of blanking plug 3 is anchored on the upper end of tool barrel 4 by shear pin 2, upper and lower two end faces of blanking plug 3 are all provided with sealing ring, can guarantee the sealing of oil pipe inner chamber.
The upper end of tool barrel 4 is fixing by screw thread and top connection 1, top connection 1 and lower brill oil pipe in succession, by oil pipe by under a whole set of calker as constructed in well.
The lower end of tool barrel 4 is fixing by screw thread and lower contact 7, and lower contact 7, with blind plugging 8, can further avoid blanking plug 3 to drop into well after completing construction.
The length of the recyclable lower brill calker of a whole set of oil gas field is between 1050mm to 1100mm, this calker can be realized under oil gas field and after brill, blanking plug being reclaimed, can avoid the blanking plug well that falls to cause follow-up well workover complicated, instrument trips out rear maintenance and can reuse, and has embodied green, environmental protection, efficient workover treatment theory.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (5)
1. the recyclable lower brill blocking device of oil gas field, which comprises at least top connection (1), blanking plug (3), tool barrel (4) and lower contact (7), it is characterized in that: tool barrel (4) is hollow cylindrical structure, its upper/lower terminal is all provided with screw thread, the middle part of tool barrel (4) is provided with grooved bore (5), and the bottom in tool barrel (4) is fixed with accepts basket (7); Top connection (1) is fixedly connected with the upper/lower terminal of tool barrel (4) by screw thread respectively with lower contact (7), and lower contact (7) is fixedly connected with blind plugging (8); The middle part of blanking plug (3) is the upper end grappling with tool barrel by shear pin (2), and the upper/lower terminal of blanking plug (3) has sealing ring.
2. according to the recyclable lower brill blocking device of a kind of oil gas field described in claim 1, it is characterized in that: the external diameter of described tool barrel (4) is 73mm, the screw thread of its upper/lower terminal is that 2-7/8 external upset tubing standard screw thread is 93mm.
3. according to the recyclable lower brill blocking device of a kind of oil gas field described in claim 1, it is characterized in that: described grooved bore (5) length is 150mm to 200mm.
4. according to the recyclable lower brill blocking device of a kind of oil gas field described in claim 1, it is characterized in that: the unidirectional pressure-bearing of described blanking plug (3) is 70MPa, it is 15MPa to 21MPa that blanking plug (3) is opened liquid nitrogen pump pressure.
5. according to the recyclable lower brill blocking device of a kind of oil gas field described in claim 1, it is characterized in that: the entire length of this calker is 1050mm to 1100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511641.4U CN203476264U (en) | 2013-08-21 | 2013-08-21 | Recoverable drill-down blocking device in oil and gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511641.4U CN203476264U (en) | 2013-08-21 | 2013-08-21 | Recoverable drill-down blocking device in oil and gas field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476264U true CN203476264U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511641.4U Expired - Lifetime CN203476264U (en) | 2013-08-21 | 2013-08-21 | Recoverable drill-down blocking device in oil and gas field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470208A (en) * | 2013-08-21 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Recyclable run-in-hole blockage tool for oil and gas field |
-
2013
- 2013-08-21 CN CN201320511641.4U patent/CN203476264U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470208A (en) * | 2013-08-21 | 2013-12-25 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Recyclable run-in-hole blockage tool for oil and gas field |
| CN103470208B (en) * | 2013-08-21 | 2017-03-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of recyclable lower brill calker of oil gas field |
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| GR01 | Patent grant | ||
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Granted publication date: 20140312 |