CN205260002U - Expanding open -hole packer - Google Patents
Expanding open -hole packer Download PDFInfo
- Publication number
- CN205260002U CN205260002U CN201521114772.4U CN201521114772U CN205260002U CN 205260002 U CN205260002 U CN 205260002U CN 201521114772 U CN201521114772 U CN 201521114772U CN 205260002 U CN205260002 U CN 205260002U
- Authority
- CN
- China
- Prior art keywords
- packing element
- locking
- adapter sleeve
- sliding sleeve
- central tube
- 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.)
- Withdrawn - After Issue
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Expanding open -hole packer seals a start -up sliding sleeve, closes locking sliding sleeve, lower clutch including expansion packing element, center tube, packing element adapter sleeve, fixture block, locking cover, graetz connection cover, seat. The upper and lower end of expansion packing element is threaded connection center tube and packing element adapter sleeve respectively, and the packing element adapter sleeve is locked on the center tube by the fixture block of its lower part inslot. The upper and lower both ends of locking cover are respectively by last locking spring and the locking of well locking spring. Graetz connection cover and central pipe thread connection to sit with the packing element and seal pin positioning. It starts the sliding sleeve dress in graetz connection cover inner chamber to sit to seal to a start -up pin joint is fixed by sitting. Lower clutch and graetz connection cover threaded connection, close locking sliding sleeve suit in the ring cavity that the graetz connection cover is constituteed with the lower clutch by close pin joint fixed, with the lower one -way locking of locking spring. The utility model provides high expansion packing element anti high temperature, the poor ability of anti high pressure under open hole well internal diameter operating mode lack of standardization, sit to seal accomplish the back and guarantee to sit the sealing liquid and do not miss, seal and separate reliably.
Description
Technical field
The utility model relates to oil gas field downhole tool, particularly expanding open hole packer.
Background technology
Domestic and international expanding open hole packer used is by central tube, expansion packing element at present, and lock valve, ball-and-seat, pressure limiting valve form. Its operation principle: connect and be lowered in open hole well with oil pipe (sleeve pipe) when expanding open hole packer work. Be lowered into behind the interior precalculated position of well, suppress to fluid injection in oil pipe, in the time that pressure reaches predetermined value, cut off pin, liquid enters through the gap of lock valve, ball-and-seat, pressure limiting valve, expanding open hole packer central tube and expansion packing element, will have flexible packing element expansion, diameter increases, packing element external diameter is closely attached on open hole well inwall, and in the time that pressure is elevated to certain value, pressure limiting valve list is closed; Not only in packing element, can not enter liquid, and highly pressurised liquid in packing element can not release; Prevent removing seal for packer, bore hole annular space is separated, this is expanding open hole packer and sets the rear object that will reach.
Expanding open hole packer existing problems at present:
(1) due to bore hole, to have bored size lack of standardization, need expanding open hole packer packing internal diameter to reach 1.2 times of bit size, existing expanding open hole packer is high temperature resistance, anti-high pressure ability in the time that enlarging rate reaches 20% Open-Hole Section shutoff, occurs that packing element explodes phenomenon when use.
(2) expanding open hole packer external diameter is less than that bit size is not more than setting value, interior latus rectum is not less than setting value, and the wall thickness of expanding open hole packer is restricted, and causes and adopts lock valve, ball-and-seat, this design of pressure limiting valve to realize.
Utility model content
The technical problems to be solved in the utility model is, a kind of expanding open hole packer is provided, this packer has designed compensation mechanism, and making to expand when packing element sets has flexible compensation function, improves expanding open hole packer high temperature resistance, anti-High Pressure Difference ability under open hole well internal diameter operating mode lack of standardization.
The technical scheme adopting is:
The utility model has designed and has set startup sliding sleeve, closed locking sliding sleeve, bridge-type connection cover mechanism, realize expanding open hole packer external diameter and be less than that bit size is not more than setting value, interior latus rectum is not less than under the condition of setting value, the expansion of constant pressure start packing element and bore hole inner wall sealing, in the time that pressure is elevated to certain value, feed pathway is closed, prevent removing seal for packer, the sealing of bore hole annular space is separated.
The technical problems to be solved in the utility model is, a kind of expanding open hole packer is provided, and has high temperature resistance, anti-High Pressure Difference ability under open hole well internal diameter operating mode lack of standardization.
The technical scheme adopting is:
The utility model has designed compensation mechanism, and making to expand when packing element sets has flexible compensation function, and improving expanding open hole packer has high temperature resistance, anti-High Pressure Difference ability.
The utility model has designed and has set startup sliding sleeve, closed locking sliding sleeve, bridge-type connection cover mechanism, realize expanding open hole packer external diameter and be less than that bit size is not more than setting value, interior latus rectum is not less than under the condition of setting value, the expansion of constant pressure start packing element and bore hole inner wall sealing, in the time that pressure is elevated to certain value, feed pathway is closed, prevent removing seal for packer, the sealing of bore hole annular space is separated.
Expanding open hole packer, comprise expansion packing element, central tube, packing element adapter sleeve, upper snap, fixture block, middle snap, locking cover, bridge-type adapter sleeve, set start sliding sleeve, close locking sliding sleeve, lower snap, lower contact, packing element set pin, set startup pin, close locking pin. Described expansion packing element, packing element adapter sleeve and locking cover are sleeved on central tube outer wall successively. The described expansion packing element upper end central tube that is threaded, the lower end packing element adapter sleeve that is threaded, packing element adapter sleeve is locked in the groove of relative central tube by the fixture block being contained in packing element adapter sleeve lower channel, and packing element adapter sleeve and central tube are fixed, and fixture block outer round surface compresses by locking cover inwall. The upper/lower terminal of described locking cover will lock cover locking by snap in being contained in the upper snap in packing element adapter sleeve groove and being contained in central tube groove respectively. Described bridge-type adapter sleeve top is threaded with central tube, and be contained in the packing element of upper end set pin connect be positioned on packing element adapter sleeve. The described startup sliding sleeve that sets is contained in bridge-type adapter sleeve inner chamber, and is connected and fixed by setting startup pin, then by being loaded on the feed pathway that sets setting on the seal sealing bridge-type adapter sleeve that starts sliding sleeve outer surface. Described lower contact is threaded with bridge-type adapter sleeve, with the lower snap locking being contained in the set groove of lower contact, closes locking sliding sleeve and is set in the ring cavity that bridge-type adapter sleeve and lower contact form that pin is connected and fixed, and lower snap monodirectional locking by closing.
Operation principle: while setting, the pressurization of expanding open hole packer inner chamber, pressure-acting is to setting startup sliding sleeve, set start sliding sleeve cut off set start after pin up, the bridge-type of opening in bridge-type adapter sleeve sets feed pathway, pressure-acting is to locking cover, cutting off packing element sets after pin, locking cover is up, open the support to fixture block, promote packing element adapter sleeve up, flexible compensation is provided to expansion packing element, the sealing ring of locking cover loses sealing simultaneously, open the passage that sets between central tube and expansion packing element, expansion packing element sets, go up snap and middle snap and overlapped locking with locking simultaneously, reach and set after pressure, close locking sliding sleeve cut off close after pin up, close passageway bridge, stop expansion packing element deblocking, close locking sliding sleeve and lower snap simultaneously and complete locking.
The utlity model has following advantage:
Locking cover is up in the time that expansion packing element sets with packing element adapter sleeve, flexible compensation distance is provided to expansion packing element, improves expansion packing element high temperature resistance, anti-High Pressure Difference ability under open hole well internal diameter operating mode lack of standardization; Expanding open hole packer, sets by suppressing and opens setting passageway bridge, closes locking sliding sleeve and will set passageway bridge and close and lock, and ensures that expanding open hole packer sets liquid and do not miss, and packing is reliable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1-expands packing element; 2-central tube; 3-packing element adapter sleeve; The upper snap of 4-; 5-fixture block; Snap in 6-; 7-locks cover; 8-bridge-type adapter sleeve; 9-passageway bridge; 10-sets startup sliding sleeve; 11-closes locking sliding sleeve; Snap under 12-; 13-lower contact; 14-packing element sets pin; 15-sets startup pin; 16-closes pin.
Illustrate with embodiment below in conjunction with accompanying drawing.
Detailed description of the invention
Expanding open hole packer, comprise expansion packing element 1, central tube 2, packing element adapter sleeve 3, upper snap 4, fixture block 5, middle snap 6, locking cover 7, bridge-type adapter sleeve 8, set start sliding sleeve 10, close locking sliding sleeve 11, lower snap 12, lower contact 13, packing element set pin 14, set and start pin 15, close locking pin 16. Described expansion packing element 1, packing element adapter sleeve 3 and locking cover 7 are sleeved on central tube 2 outer walls successively. The described expansion packing element 1 upper end central tube 2 that is threaded, the lower end packing element adapter sleeve 3 that is threaded, packing element adapter sleeve 3 is locked in the groove of relative central tube 2 by the fixture block 5 being contained in packing element adapter sleeve lower channel, packing element adapter sleeve 3 is fixing with central tube 2, and fixture block 5 outer round surface compress by locking cover 7 inwalls. The upper/lower terminal of described locking cover 7 will lock cover locking by snap 6 in being contained in the upper snap 4 in packing element adapter sleeve 1 groove and being contained in central tube 2 grooves respectively. Described bridge-type adapter sleeve 8 tops are threaded with central tube 2, and set pin 14 and connect and be positioned on packing element adapter sleeve 3 to be contained in the packing element of upper end. Described setting starts sliding sleeve 10 and is contained in bridge-type adapter sleeve 8 inner chambers, and starts pin 15 and be connected and fixed by setting, then on the seal sealing bridge-type adapter sleeve 8 that starts sliding sleeve outer surface, sets feed pathway 9 by being loaded on to set. Described lower contact 13 is threaded with bridge-type adapter sleeve 8, lock with the lower snap 12 being contained in the set groove of lower contact 13, close locking sliding sleeve 11 be set in the ring cavity that bridge-type adapter sleeve 8 and lower contact 13 form by close pin 16 be connected and fixed, with lower snap 12 monodirectional lockings, form expanding open hole packer.
Claims (1)
1. expanding open hole packer, comprise expansion packing element (1), central tube (2), packing element adapter sleeve (3), upper snap (4), fixture block (5), middle snap (6), locking cover (7), bridge-type adapter sleeve (8), set and start sliding sleeve (10), close locking sliding sleeve (11), lower snap (12), lower contact (13), packing element sets pin (14), set and start pin (15), close locking pin (16), it is characterized in that described expansion packing element (1), packing element adapter sleeve (3) and locking cover (7) are sleeved on central tube (2) outer wall successively, expansion packing element (1) the upper end central tube (2) that is threaded, the lower end packing element adapter sleeve (3) that is threaded, packing element adapter sleeve (3) is locked in the groove of relative central tube (2) by the fixture block (5) being contained in packing element adapter sleeve lower channel, by fixing to packing element adapter sleeve (3) and central tube (2), fixture block (5) outer round surface compresses by locking cover (7) inwall, the upper of (7) overlapped in locking, lower two ends will lock cover locking by snap (6) in being contained in the upper snap (4) in packing element adapter sleeve (3) groove and being contained in central tube (2) groove respectively, bridge-type adapter sleeve (8) top is threaded with central tube (2), and be contained in the packing element of upper end set pin (14) connect be positioned on packing element adapter sleeve (3), setting startup sliding sleeve (10) is contained in bridge-type adapter sleeve (8) inner chamber, and be connected and fixed by setting startup pin (15), on the seal sealing bridge-type adapter sleeve (8) that starts sliding sleeve outer surface, set feed pathway (9) by being loaded on to set again, lower contact (13) is threaded with bridge-type adapter sleeve (8), with lower snap (12) locking being contained in the set groove of lower contact (13), closing locking sliding sleeve (11) is set in the ring cavity that bridge-type adapter sleeve (8) and lower contact (13) form and is connected and fixed by closing pin (16), with lower snap (12) monodirectional locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114772.4U CN205260002U (en) | 2015-12-30 | 2015-12-30 | Expanding open -hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114772.4U CN205260002U (en) | 2015-12-30 | 2015-12-30 | Expanding open -hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260002U true CN205260002U (en) | 2016-05-25 |
Family
ID=56001534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521114772.4U Withdrawn - After Issue CN205260002U (en) | 2015-12-30 | 2015-12-30 | Expanding open -hole packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205260002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464617A (en) * | 2015-12-30 | 2016-04-06 | 阜新市石油工具厂 | Expansion-type open hole packer |
| CN114909104A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Hydraulic expansion type open hole packer capable of being closed permanently |
-
2015
- 2015-12-30 CN CN201521114772.4U patent/CN205260002U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464617A (en) * | 2015-12-30 | 2016-04-06 | 阜新市石油工具厂 | Expansion-type open hole packer |
| CN105464617B (en) * | 2015-12-30 | 2017-12-22 | 阜新市石油工具厂 | Expanding open hole packer |
| CN114909104A (en) * | 2021-02-08 | 2022-08-16 | 中国石油化工股份有限公司 | Hydraulic expansion type open hole packer capable of being closed permanently |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160525 Effective date of abandoning: 20171222 |
|
| AV01 | Patent right actively abandoned |