CN202467753U - Blanking plug for tail tube of oil and water well - Google Patents
Blanking plug for tail tube of oil and water well Download PDFInfo
- Publication number
- CN202467753U CN202467753U CN2011205232717U CN201120523271U CN202467753U CN 202467753 U CN202467753 U CN 202467753U CN 2011205232717 U CN2011205232717 U CN 2011205232717U CN 201120523271 U CN201120523271 U CN 201120523271U CN 202467753 U CN202467753 U CN 202467753U
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- China
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- main body
- slips
- joint sleeve
- core bar
- claw
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Abstract
The utility model discloses a blanking plug for tail tube of oil and water well. The blanking plug is formed by connecting a rope socket, an end delivery main body, an upper connecting sleeve, a claw main body, a claw, a middle core rod, a shaft torsion spring, a cava main body, a cava, a connecting rod, an upper connecting sleeve, a pressure pad, a lower connecting sleeve, a lower cava, a lower cava main body, a short circuit, a lower core rod, a pressing cap, a rubber cylinder, a sealing ring, a guiding head and an upper core rod. The tool can block the lower oil tube by section through the central hole of the downhole tools, so that an inner anti-spraying work of a whole well tubing string can be realized.
Description
Technical field
The utility model relates to the used a kind of instrument in oil recovery field, oil field, belongs to a kind of oil-water well tail pipe blanking plug.
Background technology
Along with Oilfield developing, Operating Pressure as an important stable yields, increase oil tech and promote in the oil field.During Operating Pressure, the Operating Pressure device mainly is the pressure of control oil jacket annular space, and the pipe inner control of former well casing post then is to realize through the former well casing post of shutoff oil pipe.At present, pipe inner control instrument is the bigger tubing plug of diameter mostly, can only shutoff oil-water well pipe column tools section on, the tubing string under the tool can't be effectively controlled.
Summary of the invention
In order to overcome the problem that exists in the background technology, the utility model provides a kind of oil-water well tail pipe blanking plug, and this instrument can pass through downhole tool centre bore segmentation shutoff bottom oil pipe, thereby realizes the interior preventing spraying operation of full well casing post.
The technical scheme that the utility model is taked is: this oil-water well tail pipe blanking plug comprises rope socket, and described rope socket lower end is connected with send head main body, send the head main body lower end to be connected with core bar through cutting off pin; The last core bar lower end middle core bar that is threaded send the head main body outer wall to be with upper joint sleeve, and last core bar outer wall is with the claw main body; Upper joint sleeve is threaded with the claw main body, is connected with claw through the axle torsion spring on the claw body wall, and the lower end screw thread of claw main body is connected with back taper slips main body; The slips lower body part is with the slips that hollow inwall is taper, and the outer wall of slips main body axially is provided with the bar shaped shoulder, and the inwall of slips axially is provided with the groove that matches with the bar shaped shoulder; The slips lower end upper joint sleeve that is threaded, the upper joint sleeve lower end lower joint sleeve that is threaded, lower joint sleeve upper end screw thread is connected with pressure pad; Be connected with connecting rod between pressure pad and the slips lower end, lower joint sleeve lower end screw thread is connected with lower slips, is connected with connecting rod between lower joint sleeve upper end and the lower slips upper end; Lower slips is hollow, and the lower slips inner wall surface is taper, and the lower slips inwall axially is provided with strip groove; Lower slips is enclosed within the bottom of lower slips main body, and the outer wall of lower slips main body is taper, lower slips main body outer wall axially be provided with the lower slips inwall on the bar shaped shoulder that matches of strip groove; Lower slips main body lower end screw thread is connected with short circuit; Short circuit lower end screw thread is connected with pressure cap, and the bottom of pressure cap is enclosed within the top of packing element, the lower end of the middle core bar core bar that is threaded down; The lower end of following core bar is connected with guide head, is provided with sealing ring between following core bar and the packing element.
The beneficial effect of the utility model is: this instrument is a blowout prevention instrument in the dedicated pipe in the oilfield oil well Operating Pressure, is used to control liquid in the former well casing column jecket.This tool is little because of its diameter, can pass through downhole tool centre bores such as injection well downhole flow regulator, packer, the former well casing post of shutoff tool bottom oil pipe.Realize the shutoff of full well casing post, the high pressure packing element is adjustment voluntarily along with down-hole pressure, good sealing effect.
Description of drawings:
Fig. 1 is the sectional view of the utility model.
1-rope socket among the figure, 2-send head main body, 3-upper joint sleeve, 4-claw main body, 5-claw; Core bar among the 6-, 7-axle torsion spring, 8-slips main body, 9-slips, 10-connecting rod; The 11-upper joint sleeve, 12-pressure pad, 13-lower joint sleeve, 14-lower slips, 15-lower slips main body; The 16-short circuit, core bar under the 17-, 18-pressure cap 19-packing element 20-sealing ring 21-guide head, the last core bar of 22-.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
In conjunction with shown in Figure 1, this oil-water well tail pipe blanking plug comprises rope socket 1.Rope socket 1 connects wire rope, and described rope socket 1 lower end is connected with send head main body 2, send head main body 2 lower ends to be connected with core bar 22 through cutting off pin; The last core bar 22 lower ends middle core bar 6 that is threaded send head main body 2 outer walls to be with upper joint sleeve 3, and last core bar 22 outer walls are with claw main body 4; Upper joint sleeve 3 is threaded with claw main body 4, is connected with claw 5 through axle torsion spring 7 on claw main body 4 sidewalls, on when carrying wire rope claw 5 be stuck in tubing coupling place; The lower end screw thread of claw main body 4 is connected with back taper slips main body 8, and slips main body 8 bottoms are with the slips 9 that hollow inwall is taper, and the outer wall of slips main body 8 axially is provided with the bar shaped shoulder; The inwall of slips 9 axially is provided with the groove that matches with the bar shaped shoulder, and slips 9 moves up and down along the bar shaped shoulder, the slips 9 lower ends upper joint sleeve 11 that is threaded; The upper joint sleeve 11 lower ends lower joint sleeve 13 that is threaded, lower joint sleeve 13 upper end screw threads are connected with pressure pad 12, are connected with connecting rod 10 between pressure pad 12 and slips 9 lower ends; Lower joint sleeve 13 lower end screw threads are connected with lower slips 14, are connected with connecting rod 10 between lower joint sleeve 13 upper ends and lower slips 14 upper ends, and lower slips 14 is a back taper for hollow inwall; Lower slips 14 inwalls axially are provided with strip groove, and lower slips 14 is enclosed within the bottom of lower slips main body 15, and lower slips 14 is hollow; Lower slips 14 inner wall surface are taper, lower slips main body 15 outer walls axially be provided with lower slips 14 inwalls on the bar shaped shoulder that matches of strip groove, lower slips 14 moves up and down along the bar shaped shoulder; Lower slips main body 15 lower end screw threads are connected with short circuit 16; Short circuit 16 lower end screw threads are connected with pressure cap 18, and the bottom of pressure cap 18 is enclosed within the top of packing element 19, the lower end of middle core bar 6 core bar 17 that is threaded down; The lower end of following core bar 17 is connected with guide head 21, is provided with sealing ring 20 between following core bar 17 and the packing element 19.
Throw when blocking up operation, utilize winch wire, transfer instrument along tubing string.After arriving assigned address, on carry steel wire, detent mechanism work makes the action of slips assembly mechanism, being fixed on instrument firmly needs the tubing string of shutoff position, promptly can in tubing string, not fly out, and also can not drop to the tubing string bottom; Carry steel wire in the continuation, packing element expanding mechanism action, high pressure resistant packing element is shut tube inner wall, and packing element reaches behind the sealing station the oil pipe shutoff; Carry steel wire on continuing, the trip gear action is stayed blanking plug in the tubing string again, and steel wire and rope socket then propose ground.
Claims (1)
1. an oil-water well tail pipe blanking plug comprises rope socket (1), it is characterized in that: described rope socket (1) lower end is connected with send head main body (2); Send head main body (2) lower end to be connected with core bar (22) through cutting off pin, last core bar (22) the lower end middle core bar (6) that is threaded send head main body (2) outer wall to be with upper joint sleeve (3); Last core bar (22) outer wall is with claw main body (4), and upper joint sleeve (3) is threaded with claw main body (4), is connected with claw (5) through axle torsion spring (7) on claw main body (4) sidewall; The lower end screw thread of claw main body (4) is connected with back taper slips main body (8), and slips main body (8) bottom is with the slips that hollow inwall is taper (9), and the outer wall of slips main body (8) axially is provided with the bar shaped shoulder; The inwall of slips (9) axially is provided with the groove that matches with the bar shaped shoulder, slips (9) the lower end upper joint sleeve (11) that is threaded, upper joint sleeve (11) the lower end lower joint sleeve (13) that is threaded; Lower joint sleeve (13) upper end screw thread is connected with pressure pad (12); Be connected with connecting rod (10) between pressure pad (12) and slips (9) lower end, lower joint sleeve (13) lower end screw thread is connected with lower slips (14), is connected with connecting rod (10) between lower joint sleeve (13) upper end and lower slips (14) upper end; Lower slips (14) is hollow; Lower slips (14) inner wall surface is taper, and lower slips (14) inwall axially is provided with strip groove, and lower slips (14) is enclosed within the bottom of lower slips main body (15); The outer wall of lower slips main body (15) is taper; Lower slips main body (15) outer wall axially be provided with lower slips (14) inwall on the bar shaped shoulder that matches of strip groove, lower slips main body (15) lower end screw thread is connected with short circuit (16), short circuit (16) lower end screw thread is connected with pressure cap (18); The bottom of pressure cap (18) is enclosed within the top of packing element (19); In the lower end of core bar (6) core bar (17) that is threaded down, the lower end of following core bar (17) is connected with guide head (21), is provided with sealing ring (20) between following core bar (17) and the packing element (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205232717U CN202467753U (en) | 2011-12-14 | 2011-12-14 | Blanking plug for tail tube of oil and water well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205232717U CN202467753U (en) | 2011-12-14 | 2011-12-14 | Blanking plug for tail tube of oil and water well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202467753U true CN202467753U (en) | 2012-10-03 |
Family
ID=46915918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205232717U Expired - Fee Related CN202467753U (en) | 2011-12-14 | 2011-12-14 | Blanking plug for tail tube of oil and water well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202467753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484696A (en) * | 2016-01-26 | 2016-04-13 | 新疆华油油气工程有限公司 | Recyclable blanking plug in oil tubing |
| CN107299829A (en) * | 2016-04-15 | 2017-10-27 | 贵州航天凯山石油仪器有限公司 | A kind of underground grappling method and device of oil pipe capping tools |
| CN108489761A (en) * | 2018-03-20 | 2018-09-04 | 国电科学技术研究院有限公司 | Powder prevents outer spray apparatus |
-
2011
- 2011-12-14 CN CN2011205232717U patent/CN202467753U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484696A (en) * | 2016-01-26 | 2016-04-13 | 新疆华油油气工程有限公司 | Recyclable blanking plug in oil tubing |
| CN105484696B (en) * | 2016-01-26 | 2018-01-16 | 新疆华油油气工程有限公司 | Blanking plug in reclaimed oil pipe |
| CN107299829A (en) * | 2016-04-15 | 2017-10-27 | 贵州航天凯山石油仪器有限公司 | A kind of underground grappling method and device of oil pipe capping tools |
| CN107299829B (en) * | 2016-04-15 | 2023-07-18 | 贵州航天凯山石油仪器有限公司 | Underground anchoring method and device of oil pipe plugging tool |
| CN108489761A (en) * | 2018-03-20 | 2018-09-04 | 国电科学技术研究院有限公司 | Powder prevents outer spray apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20181214 |