CN203175469U - Hydraulic packer - Google Patents
Hydraulic packer Download PDFInfo
- Publication number
- CN203175469U CN203175469U CN 201320052751 CN201320052751U CN203175469U CN 203175469 U CN203175469 U CN 203175469U CN 201320052751 CN201320052751 CN 201320052751 CN 201320052751 U CN201320052751 U CN 201320052751U CN 203175469 U CN203175469 U CN 203175469U
- Authority
- CN
- China
- Prior art keywords
- central tube
- threaded
- seat
- piston
- snap close
- Prior art date
- 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 - Fee Related
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Abstract
Disclosed is a hydraulic packer. According to the hydraulic packer, an upper connector is in threaded connection with one end of a central tube, the other end of the central tube is in threaded connection with one end of a lower central tube, the other end of the lower central tube is in threaded connection with a lower connector, one end of an upper rubber sleeve base is connected with the upper connector through a de-packing pin, an external central tube is sleeved outside the central tube, one end of the external central tube is connected with the other end of the upper rubber sleeve base through threads, one end of a hasp support is in threaded connection with the external central tube, a hasp clamp is sleeved and welded at the other end of the hasp support in an integral mode, an unlocking sleeve is arranged outside the hasp clamp, one end of a hasp sleeve is connected with a lower rubber sleeve base, the other end of the hasp sleeve is in threaded connection with a setting piston, the other end of the setting piston is in threaded connection with a piston base, one end of the lower central tube is in threaded connection with the other end of the central tube, the other end of the lower central tube is in threaded connection with the lower connector, and one end of a combining cap is in threaded connection with the lower connector. The hydraulic packer changes the setting method, is used in a casing deformation well, and solves the problem of complicated underground construction caused by wriggling of tubular columns. The hydraulic packer is used in a multi-step mode and de-packing can only be achieved step by step.
Description
Technical field
The utility model relates to a kind of hydraulic packer, belongs to oil field downhole tool technical field.
Background technology
At present, the locking device of hydraulic packer adopts the lock ring structure, owing to pressure oscillation, tubing string wriggling cause the automatic deblocking of packer.In casing deformation well, the packing element material is lax, the situation of " shoulder is outstanding " occurs.The period of validity of packer shutoff is in use lacked, sets weak effect, deblocking difficulty, is often caused construction operation to do over again, and produces to the oil field to impact.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of hydraulic packer, changes the form that sets, and is used for casing deformation well, solves the tubing string wriggling institute down-hole that the produces challenge of constructing, multistage use gradually deblocking.
A kind of hydraulic packer, top connection is connected with the central tube threaded one end, the central tube other end is connected with the lower center tube threaded one end, the lower center tube other end is threaded with lower contact, last glue tube base one end is connected with the deblocking pin with top connection, exterior central tube is socketed in the central tube outside, exterior central tube one end and the last glue tube base other end are by being threaded, the lower rubber cylinder seat, the lower rubber cylinder sheath, lower rubber cylinder, the packing element spacer ring, middle packing element, the packing element spacer ring, last packing element and last packing element sheath are enclosed within outside the exterior central tube respectively, snap close supports an end and is threaded with exterior central tube, snap close is grabbed and is enclosed within snap close and supports the other end and be welded as a whole, separate lock barrel outside snap close is grabbed, snap close sleeve one end is connected with the lower rubber cylinder seat, the snap close sleeve other end is connected with seat envelope piston thread, the seat envelope piston other end is threaded with piston seat, lower center tube one end is threaded with the central tube other end, the lower center tube other end is threaded with lower contact, the piston seat other end with and cap be connected by setting pin, and the cap other end is threaded with lower contact, fixing pin is to also cap and lower contact are carried out spacing, sealing ring is that piston seat and lower contact seal, sealing ring is that piston seat and lower center tube seal, sealing ring seals piston for seat and lower center tube seals, sealing ring seals piston for seat and central tube seals, and sealing ring is that top connection and central tube seal; The deblocking sleeve is connected snap close and grabs the periphery.
Sketch the use of this hydraulic packer.Hydraulic packer is after projected depth, in oil pipe, inject liquid, when pressure reaches the pressure of cutting off an offset nail, seat envelope piston compression packing element radially swells packing element, the sealing oil casing annular space, because this packer has the one-way locking device, after pressure release, packer is deblocking voluntarily not, can make the packer deblocking behind the upper lifting pipe post.
The beneficial effects of the utility model: the utility model hydraulic packer, high pressure resistant, the high temperature of packing element material has disposed the outstanding protrusion-dispelling parts of restriction shoulder, the application life of having improved packer simultaneously in the packing element end.Cancel the anti-flushing well passage simultaneously, be applicable in water blockoff, acidifying, the fracturing process and multistage use.Formed by two pistons, make the compressive force of piston increase, set effect and improve, bearing capacity height, the application life of prolongation packing element; The locking assembly by snap close sleeve, deblocking sleeve, snap close grab, snap close supports, seat seals piston, piston seat is formed, snap close is grabbed when setting, snap close support to adopt interference fit, complete interlock is carried out in the displacement that the teeth that teeth on the snap close sleeve, snap close are grabbed utilize central tube to produce, and the seat envelope is respond well; Deblocking load is little, the accident potential in pulling out by force when having eliminated lift pipe string; Packing element is suitable for the increase of the anti-shoulder of high pressure, hot environment and packing element teat spare, makes packing element prolong application life; Cancel the anti-flushing well passage simultaneously, be applicable in water blockoff, acidifying, the fracturing process and multistage use, widened the scope of application of this packer, for the type selecting of instrument and the optimization of measure tubing string provide technical support.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model, as figure wherein:
Fig. 1 is the utility model hydraulic packer the first half structural profile schematic diagram.
Fig. 2 is the utility model hydraulic packer the latter half structural profile schematic diagram.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1 and Figure 2,
A kind of hydraulic packer comprises top connection 29, deblocking pin 27, last glue tube base 26, lower rubber cylinder seat 17, last packing element sheath 25, lower rubber cylinder sheath 18, exterior central tube 24, packing element assembly, packing element spacer ring 22, locking assembly, central tube 12, lower center tube 9, sets pin 4, fixing pin 3 and cap 2, lower contact 1 composition;
Top connection 29 is connected with central tube 12 threaded one ends, central tube 12 other ends are connected with lower center tube 9 threaded one ends, lower center tube 9 other ends are threaded with lower contact 1, last glue tube base 26 1 ends are connected with top connection 29 usefulness deblocking pins 27, exterior central tube 24 is socketed in central tube 12 outsides, exterior central tube 24 1 ends and last glue tube base 26 other ends are by being threaded, lower rubber cylinder seat 17, lower rubber cylinder sheath 18, lower rubber cylinder 19, packing element spacer ring 20, middle packing element 21, packing element spacer ring 22, last packing element 23, last packing element sheath 25 is enclosed within outside the exterior central tube 24, snap close supports 16 1 ends and is threaded with exterior central tube 24, snap close is grabbed 15 and is enclosed within snap close and supports 16 other ends and be welded as a whole, separating lock barrel 14 grabs outside 15 at snap close, snap close sleeve 13 1 ends are connected with lower rubber cylinder seat 17, snap close sleeve 13 other ends are threaded with seat envelope piston 8, seat envelope piston 8 other ends are threaded with piston seat 5, lower center tube 9 one ends are threaded with central tube 12 other ends, lower center tube 9 other ends are threaded with lower contact 1, piston seat 5 other ends with and cap 2 be connected by setting pin 4, and cap 2 other ends are threaded with lower contact 1,3 pairs of fixing pins and cap 2 carry out spacing with lower contact 1, sealing ring 6 seals for piston seat 5 and lower contact 1, sealing ring 7 seals for piston seat 5 and lower center tube 9, sealing ring 10 seals with lower center tube 9 for seat envelope piston 8, sealing ring 11 seals with central tube 12 for seat envelope piston 8, and sealing ring 28 seals for top connection 29 and central tube 12; Deblocking sleeve 14 is connected snap close and grabs 15 peripheries.
Complete interlock is carried out in the displacement that the teeth that teeth during this packer setting on the snap close sleeve, snap close are grabbed utilize central tube to produce, and improves seat envelope effect.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (1)
1. hydraulic packer, it is characterized in that, top connection is connected with the central tube threaded one end, the central tube other end is connected with the lower center tube threaded one end, the lower center tube other end is threaded with lower contact, last glue tube base one end is connected with the deblocking pin with top connection, exterior central tube is socketed in the central tube outside, exterior central tube one end and the last glue tube base other end are by being threaded, the lower rubber cylinder seat, the lower rubber cylinder sheath, lower rubber cylinder, the packing element spacer ring, middle packing element, the packing element spacer ring, last packing element and last packing element sheath are enclosed within outside the exterior central tube respectively, snap close supports an end and is threaded with exterior central tube, snap close is grabbed and is enclosed within snap close and supports the other end and be welded as a whole, separate lock barrel outside snap close is grabbed, snap close sleeve one end is connected with the lower rubber cylinder seat, the snap close sleeve other end is connected with seat envelope piston thread, the seat envelope piston other end is threaded with piston seat, lower center tube one end is threaded with the central tube other end, the lower center tube other end is threaded with lower contact, the piston seat other end with and cap be connected by setting pin, and the cap other end is threaded with lower contact, fixing pin is to also cap and lower contact are carried out spacing, sealing ring is that piston seat and lower contact seal, sealing ring is that piston seat and lower center tube seal, sealing ring seals piston for seat and lower center tube seals, sealing ring seals piston for seat and central tube seals, and sealing ring is that top connection and central tube seal; The deblocking sleeve is connected snap close and grabs the periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052751 CN203175469U (en) | 2013-01-30 | 2013-01-30 | Hydraulic packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052751 CN203175469U (en) | 2013-01-30 | 2013-01-30 | Hydraulic packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175469U true CN203175469U (en) | 2013-09-04 |
Family
ID=49072184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320052751 Expired - Fee Related CN203175469U (en) | 2013-01-30 | 2013-01-30 | Hydraulic packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251127A (en) * | 2014-09-15 | 2014-12-31 | 宝鸡市赛孚石油机械有限公司 | Controllable hydraulic packer |
| CN105909206A (en) * | 2016-06-23 | 2016-08-31 | 宝鸡市元亨石油设备有限责任公司 | Closed compressed rubber sleeve sealing unit |
-
2013
- 2013-01-30 CN CN 201320052751 patent/CN203175469U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251127A (en) * | 2014-09-15 | 2014-12-31 | 宝鸡市赛孚石油机械有限公司 | Controllable hydraulic packer |
| CN104251127B (en) * | 2014-09-15 | 2016-08-31 | 宝鸡市赛孚石油机械有限公司 | Controlled hydraulic formula packer |
| CN105909206A (en) * | 2016-06-23 | 2016-08-31 | 宝鸡市元亨石油设备有限责任公司 | Closed compressed rubber sleeve sealing unit |
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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: 20130904 Termination date: 20220130 |