CN202228039U - Ground hydraulic-control cable packer - Google Patents
Ground hydraulic-control cable packer Download PDFInfo
- Publication number
- CN202228039U CN202228039U CN2011203398493U CN201120339849U CN202228039U CN 202228039 U CN202228039 U CN 202228039U CN 2011203398493 U CN2011203398493 U CN 2011203398493U CN 201120339849 U CN201120339849 U CN 201120339849U CN 202228039 U CN202228039 U CN 202228039U
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- hydraulic
- ground
- control cable
- packer
- piston
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Abstract
The utility model discloses a ground hydraulic-control cable packer, which comprises a lower portion fixing device and an upper portion sealing device which are connected together through short sections. The fixing device and the sealing device are both connected with a ground pressure control device through hydraulic control pipelines. The ground pressure control device controls the fixing device and the sealing device through the hydraulic control pipelines. The ground hydraulic-control cable packer is high in reliability of sealing and removing sealing, suitable for well repair of production platform on the sea, simple in structure, convenient to operate and low in cost.
Description
Technical field
The utility model relates to a kind of downhole packer that is used for oil recovery field, oil field, particularly relates to a kind of ground hydraulic control cable-passing packer.
Background technology
At present, the cable-passing packer of the offshore oilfield use matured products that adopt external producer more.Cost an arm and a leg, complex structure, maintenance utilizes program complicated again, and cost is very high; And need be equipped with special blanking plug when setting and be located joint, cause additional consumption; The deblocking pulling force requires high, is not suitable for marine in production platform well workover situation.
The utility model content
The utility model provides a kind of ground hydraulic control cable-passing packer for solving the technical problem that exists in the known technology, and this packer setting, deblocking reliability height are fit to the sea in production platform well workover situation, and simple in structure, easy to operate, cost is low.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: a kind of ground hydraulic control cable-passing packer; Comprise the bottom fastening devices and the top seal device that link to each other through pipe nipple; Said fastening devices all is connected with the ground pressure control device through liquid controling pipe line with sealing device, and said ground pressure control device is through liquid controling pipe line control fastening devices and sealing device.
Said sealing device comprises fixed stop ring and hydraulic cylinder, and the piston of said hydraulic cylinder is provided with the piston yoke ring that is positioned at outside the cylinder body; Between said piston yoke ring and said fixed stop ring, be clamped with ring gauge and packing element, said packing element is adjacent with said piston yoke ring.
Said fastening devices comprises the anchor body, radially is provided with some hydraulic anchors of symmetric arrangement on the said anchor body, is provided with above the said hydraulic anchor and the affixed pressing plate of said anchor body, between said pressing plate and said hydraulic anchor, is clamped with spring.
The piston of said hydraulic cylinder is connected through pin with cylinder body.
Said ground pressure control device comprises the sinking ball-and-seat.
Advantage and the good effect that the utlity model has are:
1) adopt the sealing of ground pressure control device through liquid controling pipe line control packer and fixing, Ground Control, adjustable in pressure sets, the deblocking reliability is high; Can be implemented in and carry on the packer in the process, set at any time, carry out well control according to the oil well situation, easy to operate;
2) adopt the sealing fluid cylinder pressure, can reduce of the corrosion of well liquid the packer body;
3) during the packer deblocking, adopt the liquid controling pipe line pressure release after, the tubing and casing annular space is suppressed, the mode of carrying on directly, no deblocking is pinned on the packer, does not promptly have deblocking power, is suitable for marine workover rig situation;
4) adopt fixedly packer of hydraulic anchor, can not produce damage production casing;
5) simple in structure, easy to maintenance, cost of production only is equivalent to 1/3 of imported product.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1.
Among the figure: 1, ground pressure control device, 2, liquid controling pipe line, 3, the fixed stop ring, 4, go up ring gauge, 5, packing element, 6, the piston yoke ring, 7, hydraulic cylinder, 8, pipe nipple, 9, the anchor body, 10, pressing plate, 11, hydraulic anchor, 12, spring.
The specific embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1～Fig. 2, a kind of ground hydraulic control cable-passing packer comprises the bottom fastening devices and the top seal device that link to each other through pipe nipple 8; Sealing device comprises fixed stop ring 3 and hydraulic cylinder 7, and the piston of hydraulic cylinder 7 is provided with the piston yoke ring 6 that is positioned at outside the cylinder body, between piston yoke ring 6 and fixed stop ring 3, is clamped with ring gauge 4 and packing element 5, and wherein packing element 5 is adjacent with piston yoke ring 6; Fastening devices comprises anchor body 9, radially is provided with some hydraulic anchors 11 of symmetric arrangement on the anchor body 9, is provided with the pressing plate 10 affixed with anchor body 9 above the hydraulic anchor 11, between pressing plate 10 and hydraulic anchor 11, is clamped with spring 12.Hydraulic cylinder 7 is connected through pipe nipple 8 with anchor body 9; Hydraulic cylinder 7 is connected with ground pressure control device 1 through liquid controling pipe line 2 with hydraulic anchor 11, and ground pressure control device 1 is through liquid controling pipe line 2 control hydraulic cylinders 7 and hydraulic anchor 11.
In order to realize positiver sealing, the piston of hydraulic cylinder 7 adopts the copper pin to be connected with cylinder body.In order further to improve the reliability of packer setting and deblocking, in ground pressure control device 1, adopt the design of sinking ball-and-seat, make it can remain the pressure in the liquid controling pipe line.
Operating principle of the utility model and maintenance process:
The pressurization of ground pressure control device, at first up through liquid controling pipe line control hydraulic cylinder piston, cut off the copper pin, make on the piston yoke hoop and move, the compression packing element, packing element receives compression swelling, is sealed on the sleeve pipe; Along with the rising of pressure, fluid pressure promotes the hydraulic anchor horizontal movement, and hydraulic anchor is stung on casing wall, and this moment, the ball-and-seat of pressure control device stoped hydraulic oil to be revealed, and accomplished the packer setting process.
When packer needs deblocking, the pressure of liquid controling pipe line to be laid down, hydraulic anchor is retracted to the anchor body interior under the effect of spring and pressing plate, and the packer fixed solution removes; This moment is through connecting the water flowing of flow process sleeve pipe, and build-up pressure, pressure act on advises ring, packing element and above the piston yoke ring; Compression piston rule ring makes its recovery, and hydraulic cylinder piston is compressed to hydraulic cylinder inside again; Packing element returns to original state; Bobbin seal this moment is removed, and the packer deblocking finishes, on propose the well head inspection and change accessory.
After packer proposes well head, the pin of the copper on the hydraulic cylinder is removed, laid down locating snap ring, go up rule ring and packing element; To go up the reverse jolt piston rule of rule ring ring; The piston yoke ring is set back, the copper pin that is used for fixing hydraulic cylinder piston and cylinder body is installed, change packing element; Install rule ring and locating snap ring, this just accomplishes the packer maintenance process.
Although combine accompanying drawing that the preferred embodiment of the utility model is described above; But the utility model is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the utility model.
Claims (5)
1. ground hydraulic control cable-passing packer; It is characterized in that; Comprise the bottom fastening devices and the top seal device that link to each other through pipe nipple; Said fastening devices all is connected with the ground pressure control device through liquid controling pipe line with sealing device, and said ground pressure control device is through liquid controling pipe line control fastening devices and sealing device.
2. hydraulic control cable-passing packer in ground according to claim 1 is characterized in that said sealing device comprises fixed stop ring and hydraulic cylinder, and the piston of said hydraulic cylinder is provided with the piston yoke ring that is positioned at outside the cylinder body; Between said piston yoke ring and said fixed stop ring, be clamped with ring gauge and packing element, said packing element is adjacent with said piston yoke ring.
3. hydraulic control cable-passing packer in ground according to claim 1 and 2; It is characterized in that; Said fastening devices comprises the anchor body; Radially be provided with some hydraulic anchors of symmetric arrangement on the said anchor body, be provided with above the said hydraulic anchor and the affixed pressing plate of said anchor body, between said pressing plate and said hydraulic anchor, be clamped with spring.
4. hydraulic control cable-passing packer in ground according to claim 2 is characterized in that, the piston of said hydraulic cylinder is connected through pin with cylinder body.
5. hydraulic control cable-passing packer in ground according to claim 1 is characterized in that said ground pressure control device comprises the sinking ball-and-seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203398493U CN202228039U (en) | 2011-09-09 | 2011-09-09 | Ground hydraulic-control cable packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203398493U CN202228039U (en) | 2011-09-09 | 2011-09-09 | Ground hydraulic-control cable packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228039U true CN202228039U (en) | 2012-05-23 |
Family
ID=46078627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203398493U Expired - Fee Related CN202228039U (en) | 2011-09-09 | 2011-09-09 | Ground hydraulic-control cable packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452524A (en) * | 2013-08-27 | 2013-12-18 | 中国海洋石油总公司 | Electrically-flushable packer and electrically-flushable insert seal for flooding well |
| CN104806193A (en) * | 2015-05-08 | 2015-07-29 | 中国海洋石油总公司 | Packer |
-
2011
- 2011-09-09 CN CN2011203398493U patent/CN202228039U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452524A (en) * | 2013-08-27 | 2013-12-18 | 中国海洋石油总公司 | Electrically-flushable packer and electrically-flushable insert seal for flooding well |
| CN103452524B (en) * | 2013-08-27 | 2016-02-10 | 中国海洋石油总公司 | Water injection well with can electric well flushing packer and can electric well flushing insert sealing |
| CN104806193A (en) * | 2015-05-08 | 2015-07-29 | 中国海洋石油总公司 | Packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Patentee before: China National Offshore Oil Corporation |
|
| 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: 20120523 Termination date: 20190909 |