CN202832325U - Hydraulic type oil pipe anchor device of oil pumping machine well - Google Patents
Hydraulic type oil pipe anchor device of oil pumping machine well Download PDFInfo
- Publication number
- CN202832325U CN202832325U CN 201220555614 CN201220555614U CN202832325U CN 202832325 U CN202832325 U CN 202832325U CN 201220555614 CN201220555614 CN 201220555614 CN 201220555614 U CN201220555614 U CN 201220555614U CN 202832325 U CN202832325 U CN 202832325U
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- China
- Prior art keywords
- wall
- cone
- oil pipe
- linkage
- pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a hydraulic type oil pipe anchor device of an oil pumping machine well. The hydraulic type oil pipe anchor device of the oil pumping machine well comprises an upper joint, the upper joint is connected with a central pipe through a thread, the outer wall of the upper portion of the central pipe is connected with a cone body through a sawtooth-shaped buckle, multiple strip-shaped elastic bodies are arranged at the upper end of the cone body, and the lower end of the cone body is connected with a linkage pipe through a thread, and the linkage pipe is sleeved on the outer wall of the central pipe. A sitting-clamping pin is arranged between the linkage pipe and the central pipe in a penetrating mode, the lower end of the linkage pipe is connected with a lower piston through a thread, a slip, a corresponding slip bowl and an upper piston are sleeved on the outer wall of the linkage pipe below the cone body, and the lower end of the slip bowl is connected with an outer sleeve through a thread. A boss is arranged on the inner wall of the lower end of the outer sleeve, the lower end of the central pipe is connected with a lower joint through a thread, a boss is arranged on the upper portion of the outer wall of the lower joint, and the lower joint is arranged in the outer sleeve. The outer sleeve is connected with the lower joint together through an unfreezing pin. The hydraulic type oil pipe anchor device of the oil pumping machine well can stabilize a tubular column, is safe from impact and vibration, and simultaneously can improve pump efficiency.
Description
Technical field
The utility model relates to a kind of instrument of down-hole in the oil extraction in oil field field, particularly a kind of rod-pumped well hydraulic oil pipe grappling device.
Background technology
[0002] in the picking methods now of oil field, oil pumper still occupies very large ratio; The skin of oil well is sleeve pipe, with cement seal sleeve pipe and borehole wall space, makes sleeve pipe be fixed in the down-hole; The oil pipe that hangs on well head is arranged in the sleeve pipe, and it is oil discharge passage; Under the oil well pump lower going-into-well, drive oil pump piston crude oil pumping in by the sucker rod that pumps in the oil pipe with oil pipe.Because the oil well pump of down-hole is reciprocating motion equipment, thus to the oil pipe of down-hole strong transmission and vibration, cause oil pipe to wriggle up and down, the flexible pump efficiency that can affect oil well pump of oil pipe.Oil pipe is the suspention body that hangs on well head, in the situation that long-term oil pumping, all oil pipe that connects by tubing thread will produce the phenomenon that releases, threads off.If thread off, just need the stopping production operation, have a strong impact on production.
Summary of the invention
Technical problem to be solved in the utility model is for the problem that exists in the background technology, and a kind of rod-pumped well hydraulic oil pipe grappling device that can the grappling oil pipe that provides, this rod-pumped well hydraulic oil pipe grappling device can be stablized tubing string, avoid shock and vibration, can also improve pump efficiency simultaneously.
The utility model solves its technical problem and can reach by following technical solution: this rod-pumped well hydraulic oil pipe grappling device comprises top connection, top connection is connected with central tube by screw thread, the central tube external wall of upper portion links by zigzag and is connected to cone, cone lower end outer wall is the inclined-plane, there is U-shaped pit at cone inwall middle part, the cone upper end is many strip elastic bodys, the cone lower end is connected with linkage tube by screw thread, linkage tube is enclosed within the central tube outer wall, the seat bayonet lock nail that is installed with between linkage tube and the central tube, the linkage tube lower end is connected with lower piston by screw thread; The linkage tube outer wall cover of cone below has slip spider and the upper piston of slips, correspondence, slips is the strip arc body, the upper end inwall is the inclined-plane, outer wall has horizontal slip insert, there is boss the both sides, lower end, embed in the T-shape groove on slip spider band self-locking inclined-plane, and slips is close on the linkage tube by the extension spring effect, the slip spider lower end is connected with overcoat by screw thread, on the inwall of overcoat lower end boss is arranged; The central tube lower end is connected with lower contact by screw thread, and boss is arranged at lower contact outer wall top, places in the overcoat; Overcoat links together by unfreezing pin and lower contact.
The utility model is compared with the above-mentioned background technology can have following beneficial effect: rod-pumped well hydraulic oil pipe grappling device is connected with tubing string by top connection; When arriving projected depth under the rod-pumped well hydraulic oil pipe grappling device, connecting cementing truck suppresses tubing string, liquid enters plunger shaft along the inlet opening of central tube and linkage tube, promote lower piston, sit the bayonet lock nail and shear, lower piston drive linkage tube and cone descending, under the effect on slips inclined-plane outside cone and spreading, be anchored on the internal surface of sleeve pipe, namely sit anchor; Cone and central tube link by sawtooth and connect, and make the relative central tube of cone can only be descending, so after the pressure in tubing string removed, anchoring device still was in the grappling state; Upper lifting pipe post unfreezing pin is cut off, and central tube band movable cone is up, and slips is regained original position under the effect of extension spring, namely disanchor.Rod-pumped well hydraulic oil pipe grappling device can be stablized tubing string, avoids shock and vibration, can also improve pump efficiency simultaneously.
Description of drawings:
Fig. 1 is the sectional drawing of rod-pumped well hydraulic oil pipe grappling device.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing 1 and specific embodiment: by shown in Figure 1, this rod-pumped well hydraulic oil pipe grappling device comprises top connection 1, top connection 1 is connected connection by screw thread with central tube, central tube 2 external wall of upper portion link by zigzag and are connected to cone 3, cone 3 lower end outer walls are inclined-planes, there is U-shaped pit at cone 3 inwalls middle part, cone 3 upper ends are many strip elastic bodys, cone 3 lower ends are connected with linkage tube 4 by screw thread, linkage tube 4 is enclosed within central tube 2 outer walls, the seat bayonet lock that is installed with between linkage tube 4 and the central tube 2 nail 12, connection is connected by screw thread in linkage tube 4 lower ends with lower piston; The linkage tube 4 outer wall covers of cone 3 belows have slip spider 8 and the upper piston 11 of slips 6, correspondence, slips 6 is strip arc bodies, the upper end inwall is the inclined-plane, outer wall has horizontal slip insert, there is boss the both sides, lower end, embed in the T-shape groove of slip spider 8 with the self-locking inclined-plane, and slips 6 is close on the linkage tube 4 by extension spring 7 effects, connection is connected by screw thread in slip spider 7 lower ends with overcoat, on the overcoat 10 lower end inwalls boss is arranged; Connection is connected by screw thread in central tube 2 lower ends with lower contact, boss is arranged at lower contact 5 outer wall tops, places 10 li in overcoat; Overcoat 10 links together by unfreezing pin 9 and lower contact 5.
Lower piston 13 bottoms are elastic claw in the such scheme, and the lower end inwall of elastic claw is boss, and outer wall is provided with the sawtooth tooth, match with the sawtooth tooth of overcoat 10 inwalls.
On linkage tube 4 and the central tube 2 inlet opening is arranged in the such scheme; Sealing ring is equipped with in sealing place.
In such scheme, the slips 6 of rod-pumped well hydraulic oil pipe grappling device strip arc body before going into the well with oil pipe is in contraction state under the effect of extension spring 7, is close on the linkage tube 4, and the external diameter of this moment is less than casing inner diameter; Slips 6 and slip spider 8 link together with central tube 2 under the effect of unfreezing pin 9, keep relatively static; Cone 3 and linkage tube 4 link together with central tube 2 under the effect of sitting bayonet lock nail 12, keep relatively static; When tubing string is transferred to projected depth, tubing string is suppressed, liquid-driving lower piston 13 is sat bayonet lock nail 12 and is cut off, and band movable cone 3 is descending, and slips 6 is spreading under the effect on cone inclined-plane, is stuck on the internal surface of sleeve pipe, namely sits anchor; The upper lifting pipe post, unfreezing pin 9 is cut off, and cone 3 is up, and slips 6 is regained original position under the effect of extension spring 7, namely disanchor.
Claims (5)
1. rod-pumped well hydraulic oil pipe grappling device, comprise top connection (1), it is characterized in that: top connection (1) is connected 2 by screw thread with central tube) connect, central tube (2) external wall of upper portion links by zigzag and is connected to cone (3), cone (3) lower end outer wall is the inclined-plane, there is U-shaped pit at cone (3) inwall middle part, cone (3) upper end is many strip elastic bodys, cone (3) lower end is connected with linkage tube (4) by screw thread, linkage tube (4) is enclosed within central tube (2) outer wall, the seat bayonet lock nail (12) that is installed with between linkage tube (4) and the central tube (2), linkage tube (4) lower end is connected 13 by screw thread with lower piston) connect; Linkage tube (4) the outer wall cover of cone (3) below has slip spider (8) and the upper piston (11) of slips (6), correspondence, slips (6) is close on the linkage tube (4) by extension spring (7) effect, slip spider (7) lower end is connected 10 by screw thread with overcoat) connect, on the inwall of overcoat (10) lower end boss is arranged; Central tube (2) lower end is connected 5 by screw thread with lower contact) connect, boss is arranged at lower contact (5) outer wall top, places overcoat (10) inner; Overcoat (10) links together by unfreezing pin (9) and lower contact (5).
2. rod-pumped well hydraulic oil pipe grappling device according to claim 1, it is characterized in that: lower piston (13) bottom is elastic claw, the lower end inwall of elastic claw is boss, and outer wall is provided with the sawtooth tooth, matches with the sawtooth tooth of overcoat (10) inwall.
3. rod-pumped well hydraulic oil pipe grappling device according to claim 1 is characterized in that: on linkage tube (4) and the central tube (2) inlet opening is arranged; Sealing ring is equipped with in sealing place.
4. rod-pumped well hydraulic oil pipe grappling device according to claim 1, it is characterized in that: slips (6) is the strip arc body, and the upper end inwall is the inclined-plane, and outer wall has horizontal slip insert, and there is boss the both sides, lower end.
5. rod-pumped well hydraulic oil pipe grappling device according to claim 1 is characterized in that: in the T-shape groove of boss embedding slip spider (8) with the self-locking inclined-plane of slips (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555614 CN202832325U (en) | 2012-10-28 | 2012-10-28 | Hydraulic type oil pipe anchor device of oil pumping machine well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220555614 CN202832325U (en) | 2012-10-28 | 2012-10-28 | Hydraulic type oil pipe anchor device of oil pumping machine well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832325U true CN202832325U (en) | 2013-03-27 |
Family
ID=47944057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220555614 Expired - Lifetime CN202832325U (en) | 2012-10-28 | 2012-10-28 | Hydraulic type oil pipe anchor device of oil pumping machine well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405319A (en) * | 2014-12-09 | 2015-03-11 | 中国石油天然气集团公司 | Coiled tube throttling suspension tubular column location anchor and location anchoring method thereof |
-
2012
- 2012-10-28 CN CN 201220555614 patent/CN202832325U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405319A (en) * | 2014-12-09 | 2015-03-11 | 中国石油天然气集团公司 | Coiled tube throttling suspension tubular column location anchor and location anchoring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |