CN201129163Y - Compression type packer - Google Patents
Compression type packer Download PDFInfo
- Publication number
- CN201129163Y CN201129163Y CNU2007201877779U CN200720187777U CN201129163Y CN 201129163 Y CN201129163 Y CN 201129163Y CN U2007201877779 U CNU2007201877779 U CN U2007201877779U CN 200720187777 U CN200720187777 U CN 200720187777U CN 201129163 Y CN201129163 Y CN 201129163Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- fluid cylinder
- central pipe
- liquid cylinder
- packer
- 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
Links
- 230000006835 compression Effects 0.000 title claims abstract description 15
- 238000007906 compression Methods 0.000 title claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 47
- 238000007789 sealing Methods 0.000 claims description 21
- 238000012856 packing Methods 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract 10
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a compression typed packer used for checking casing and looking for the leakage of oil and water wells in oil fields and comprises a top joint, an outer central pipe connected with the top joint through threads, a central pipe connected with the outer central pipe, a bottom joint connected with the central pipe through threads. The outer central pipe under the top joint is provided with a rubber packer, a caulking ring, a rubber packer and a cushion orderly; an upper liquid cylinder is sheathed on the central pipe; a connecting pipe is sheathed between the upper liquid cylinder and the cushion; a piston is arranged inside the upper liquid cylinder; the central pipe at one side of the piston is provided with a liquid outlet hole; the head part of the lower liquid cylinder is sheathed on the central pipe under the upper liquid cylinder; the head part of the bottom joint is arranged in the lower liquid cylinder; the central pipe in the lower liquid cylinder is also provided with the liquid outlet hole; the bottom joint of the tail part of the lower liquid cylinder is provided with a regulating ring. The compression typed packer has the advantages of meeting the requirements of checking the casing in the oil and water wells with 4 inch sleeves, throwing off lock mechanism, greatly shortening the total length of the packer, having short structure, flexibly and reliably setting and unsetting, and being used for checking the casing and looking for the leakage.
Description
Technical field
The utility model belongs to the oil recovery technique field, relates in particular to a kind of testing cover and looking for leakage compression packer of oilfield oil well that be applied to.
Background technology
In oilfield development process, recover the oil and the balance of the water filling enforcement direction that will in a very long time, become to attach most importance to.Because the perforation of part Casing Failure, the water filling in oil field is tested cover work and is seemed more important, and selecting for use a kind of water filling efficiently to test the cover instrument is key point.Along with the part oil field development enters the middle and later periods, oil field 4 cun covers oil-water well quantity increases year by year, the needs that the major diameter instrument of applying mechanically can't satisfy oil recovery of 4 cun cover oil-water wells or water filling are tested in oil-field flooding now, and therefore, a kind of small diameter tools that cover is tested in water filling that is used for is badly in need of in the oil field.
Summary of the invention
Test the cover problem in order to solve 4 cun cover oil-water wells better, the utility model provides a kind of compression packer of minor diameter, and this compression packer can satisfy the needs that 4 cun cover oil-water wells are tested cover preferably.
The technical scheme that its technical problem that solves the utility model adopts is: comprise top connection, the exterior central tube that is threaded with top connection, the central tube that is threaded with exterior central tube, the lower contact that is threaded with central tube, suit has packing element successively on the exterior central tube below top connection, spacer ring, packing element and seat cushion, be set with fluid cylinder on the central tube, be set with tube connector between last fluid cylinder and the seat cushion, be provided with piston in the last fluid cylinder, on the central tube of piston one side, have fluid hole, on the central tube of last fluid cylinder bottom, be set with the head of fluid cylinder down, the head of lower contact is arranged in fluid cylinder down, also have fluid hole on the central tube in the following fluid cylinder, in the lower contact of following fluid cylinder afterbody, adjustable ring is installed.
Top connection is connected with the external screw thread of exterior central tube by internal thread, also is provided with sealing ring between top connection and exterior central tube.
Exterior central tube is connected with the external screw thread of central tube by internal thread, also is provided with sealing ring between exterior central tube and central tube.
Also be set with middle gum cover between the packing element of suit and the packing element successively on the exterior central tube by spacer ring.
Be sleeved between last fluid cylinder on the central tube and the central tube and be provided with sealing ring, be provided with sealing ring between piston and the last fluid cylinder, between piston and central tube, be provided with sealing ring, be sleeved between the head of the following fluid cylinder on the central tube and the central tube and be provided with sealing ring, be provided with sealing ring between following fluid cylinder and the lower contact.
Adjustable ring is threaded with lower contact, and is fixed in the lower contact by holding screw, and adjustable ring also is connected with following fluid cylinder afterbody by connected nail.
The beneficial effects of the utility model are: this compression packer can satisfy 4 cun cover oil-water wells preferably and test the needs of cover, and is simple in structure, sets, deblocking is flexible.Removed the retaining mechanism of common Y341 type packer, not only shortened the total length of packer greatly, can be easily cover by oil-water well become or dog-leg degree section, and make set, deblocking flexibility and reliability more.
Description of drawings
Fig. 1 is structural plan figure of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model comprises top connection 1, the exterior central tube 3 that is threaded with top connection 1, the central tube 9 that is threaded with exterior central tube 3, the lower contact 19 that is threaded with central tube 9, suit has packing element 4 successively on the exterior central tube 3 below top connection 1, spacer ring 5, packing element 4 and seat cushion 8, be set with fluid cylinder 15 on the central tube 9, between last fluid cylinder 15 and seat cushion 8, be set with tube connector 10, be provided with piston 13 in the last fluid cylinder 15, on the central tube 9 of piston 13 1 sides, have fluid hole, on the central tube 9 of last fluid cylinder 15 bottoms, be set with the head of fluid cylinder 18 down, the head of lower contact 19 is arranged in fluid cylinder 18 down, also have fluid hole on the central tube 9 in the following fluid cylinder 18, in the lower contact 19 of following fluid cylinder 18 afterbodys, adjustable ring 22 is installed.
Top connection 1 is connected by the external screw thread of internal thread with exterior central tube 3, also is provided with sealing ring 2 between top connection 1 and exterior central tube 3.
Exterior central tube 3 is connected by the external screw thread of internal thread with central tube 9, also is provided with sealing ring 7 between exterior central tube 3 and central tube 9.
Gum cover 6 on exterior central tube 3, also being set with between the packing element 4 of suit and the packing element 4 successively by spacer ring 5.
Be sleeved between last fluid cylinder 15 on the central tube 9 and the central tube 9 and be provided with sealing ring 11, be provided with sealing ring 12 between piston 13 and the last fluid cylinder 15, be provided with sealing ring 14 between piston 13 and the central tube 9, be sleeved between the head of the following fluid cylinder 18 on the central tube 9 and the central tube 9 and be provided with sealing ring 16, be provided with sealing ring 17 between following fluid cylinder 18 and the lower contact 19.
Adjustable ring 22 is threaded with lower contact 19, and is fixed in the lower contact 19 by holding screw 21, and adjustable ring 22 also is connected with following fluid cylinder 18 afterbodys by connected nail 20.
The utility model is also referred to as compression DHY341-80B type packer, mainly is made up of top connection, exterior central tube, packing element, central tube, piston, last fluid cylinder, following fluid cylinder and lower contact.
The job execution step:
A. trip out former well casing post;
B. descend the drifting tubing string, pass to the following 10-20 rice of card shut-in well section;
C. the setting of casing scraper is present and is sealed section 10 meters scrapings repeatedly up and down;
D. before going into the well, go into the well by design tubing string figure connection.In the process of going into the well, play lower tubular column speed evenly (about 25 pieces/hour), forbid tubing string to be carried suddenly suddenly and put, cause packing element to damage.
E. under the packer behind the precalculated position, just build the pressure from oil pipe, make packer setting, continue to improve pressure and test envelope.
F. need to change when envelope of examining item by item, slowly bleed off oil jacket pressure, restriction choke cuts out, and the packer self-return is adjusted and repeated preceding step after the tubing string degree of depth and get final product.
Claims (6)
1, a kind of compression packer, comprise top connection (1), the exterior central tube (3) that is threaded with top connection (1), the central tube (9) that is threaded with exterior central tube (3), the lower contact (19) that is threaded with central tube (9), it is characterized in that: be set with packing element (4) successively on the exterior central tube (3) below top connection (1), spacer ring (5), packing element (4) and seat cushion (8), on central tube (9), be set with fluid cylinder (15), be set with tube connector (10) between last fluid cylinder (15) and the seat cushion (8), be provided with piston (13) in the last fluid cylinder (15), on the central tube (9) of piston (13) one sides, have fluid hole, on the central tube (9) of last fluid cylinder (15) bottom, be set with the head of fluid cylinder (18) down, the head of lower contact (19) is arranged in fluid cylinder (18) down, also have fluid hole on the central tube (9) in the following fluid cylinder (18), in the lower contact (19) of following fluid cylinder (18) afterbody, adjustable ring (22) is installed.
2, compression packer according to claim 1 is characterized in that: top connection (1) is connected by the external screw thread of internal thread with exterior central tube (3), also is provided with sealing ring (2) between top connection (1) and exterior central tube (3).
3, compression packer according to claim 1 is characterized in that: exterior central tube (3) is connected by the external screw thread of internal thread with central tube (9), also is provided with sealing ring (7) between exterior central tube (3) and central tube (9).
4, compression packer according to claim 1 is characterized in that: also be set with middle gum cover (6) by spacer ring (5) between the packing element of suit (4) and the packing element (4) successively on the exterior central tube (3).
5, compression packer according to claim 1, it is characterized in that: be sleeved between last fluid cylinder (15) on the central tube (9) and the central tube (9) and be provided with sealing ring (11), be provided with sealing ring (12) between piston (13) and the last fluid cylinder (15), be provided with sealing ring (14) between piston (13) and the central tube (9), be sleeved between the head of the following fluid cylinder (18) on the central tube (9) and the central tube (9) and be provided with sealing ring (16), be provided with sealing ring (17) between following fluid cylinder (18) and the lower contact (19).
6, compression packer according to claim 1, it is characterized in that: adjustable ring (22) is threaded with lower contact (19), and be fixed in the lower contact (19) by holding screw (21), adjustable ring (22) also is connected with following fluid cylinder (18) afterbody by connected nail (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201877779U CN201129163Y (en) | 2007-12-28 | 2007-12-28 | Compression type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201877779U CN201129163Y (en) | 2007-12-28 | 2007-12-28 | Compression type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129163Y true CN201129163Y (en) | 2008-10-08 |
Family
ID=40017003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201877779U Expired - Fee Related CN201129163Y (en) | 2007-12-28 | 2007-12-28 | Compression type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129163Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781476A (en) * | 2016-05-16 | 2016-07-20 | 陈晓新 | Packer |
-
2007
- 2007-12-28 CN CNU2007201877779U patent/CN201129163Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781476A (en) * | 2016-05-16 | 2016-07-20 | 陈晓新 | Packer |
| CN105781476B (en) * | 2016-05-16 | 2018-03-30 | 陈晓新 | A kind of packer |
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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 |
Granted publication date: 20081008 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |