CN202152661U - Anchoring type graded deblocking packer for oil well - Google Patents
Anchoring type graded deblocking packer for oil well Download PDFInfo
- Publication number
- CN202152661U CN202152661U CN2011202150486U CN201120215048U CN202152661U CN 202152661 U CN202152661 U CN 202152661U CN 2011202150486 U CN2011202150486 U CN 2011202150486U CN 201120215048 U CN201120215048 U CN 201120215048U CN 202152661 U CN202152661 U CN 202152661U
- Authority
- CN
- China
- Prior art keywords
- deblocking
- packing element
- oil well
- packer
- packing
- 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 - Lifetime
Links
- 239000003129 oil well Substances 0.000 title claims abstract description 11
- 238000004873 anchoring Methods 0.000 title claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 4
- 230000032798 delamination Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides an oil well anchoring type is deblocking packer in grades, is including packing off device and anchoring device, and characterized by still the cover is equipped with a packing element (6) and short tubulose hydraulic cylinder (4) between last cone (7) upper end and top connection (1) of outer pipe wall of packing element cover (5), and hydraulic cylinder (4) are fixed on packing element cover (5) through deblocking shear pin (2). The utility model has the advantages of being reasonable in structure, convenient operation, reliable operation for among the oil field layering operation, can realize the hierarchical deblocking of a plurality of packers when carrying the tubular column deblocking at last, therefore can reduce lifting force, reduce the construction degree of difficulty, avoid the accident in the pit of whole deblocking.
Description
Technical field: the utility model relates to a kind of oil field and uses downhole tool, especially for the oil well grappling formula classification deblocking packer of stratified operation.
Background technology: before the utility model, each oil field when deep-well water filling, the operation of pressure break hierarchical more adopts the anchor packer combined strings, owing to need during whole deblocking to lift power on bigger, thereby difficulty of construction is bigger, also can cause down-hole accident.
Summary of the invention: the purpose of the utility model is: for the oil field stratified operation provides a kind of oil well grappling formula classification deblocking packer; Because this device increases by a deblocking shear pin; When upper lifting pipe post deblocking, can use less pulling force that it is cut off earlier and move certain distance; Thereby can realize a plurality of packer classification deblockings, reduce whole deblocking on lift power, reduce difficulty of construction, avoid down-hole accident.
The purpose of the utility model realizes through following measure: a kind of oil well grappling formula classification deblocking packer; The anchoring device that comprises by packing element group, lock dog, snap seat, snap, the cylinder sleeve of top connection, upper center tube, lower center tube, lower contact and outside suit thereof, sets packing device that shear pin, piston constitute and constitute by the packing element cover of the outer suit of upper center tube and upper cone, slips, lower cone, helmet; It is characterized in that between the upper cone upper end of packing element cover outer tube wall and top connection, also being set with the fluid cylinder of a packing element and short tube shape, fluid cylinder is to be fixed on packing element through columniform deblocking shear pin to put.
The utility model is rational in infrastructure, easy to operate, reliable operation, is used for the oil field stratified operation, when upper lifting pipe post deblocking, can realize a plurality of packer classification deblockings, thus can reduce whole deblocking on lift power, reduce difficulty of construction, avoid down-hole accident.
Description of drawings: Fig. 1 is the structural representation of oil well grappling formula classification deblocking packer.
The specific embodiment: the anchoring device that oil well grappling formula classification deblocking packer comprises by the packing element group 11 of top connection 1, upper center tube 3, lower center tube 15, lower contact 19 and outside suit thereof, lock dog 12, snap seat 13, snap 14, cylinder sleeve 16, set packing device that shear pin 17, piston 18 constitute and be made up of the packing element cover 5 of suit on upper center tube 3 outer tube walls and upper cone 7, slips 8, lower cone 9, helmet 10; Also be included in packing element and overlap the packing element 6 of suit between upper cone 7 upper ends and the top connection 1 of 5 outer tube walls and the fluid cylinder 4 of short tube shape, fluid cylinder 4 is to be fixed on the packing element cover 5 through deblocking shear pin 2.
The operating principle and the method for using of oil well grappling formula classification deblocking packer are: earlier be connected to this device on the oil well delamination working string through top connection 1 and lower contact 19 and lower going-into-well under the precalculated position; Can be when setting through the tubing string pressurization; Piston 18 is cut off set shear pin 17 to cause moving on the cylinder sleeve 16, thus promote that packing element group 11 discharges with packing element 6, upper cone 7 and lower cone 9 awls go into slips 8 make its expansion, and through snap 14 location.When the needs deblocking, can on carry tubing string and drive fluid cylinder 4 through top connection 1 and cut off deblocking shear pin 2 up segment distances, it is up to drive the cylinder sleeve 16 of packing elements cover 5 and following connection thereof by fluid cylinder 4 more subsequently, accomplishes the deblocking of packer at the corresponding levels; Carry tubing string on continuing this moment, and it is up to drive fluid cylinder 4, packing element cover 5, cylinder sleeve 16 successively through top connection 1, behind a up segment distance so that drive lower contact 19 and below tubing string, then can carry out the deblocking of next stage packer.Since cut off in the deblocking at the corresponding levels deblocking shear pin 2 with on carry cylinder sleeve 16 after; All can under the less state of pulling force, carry tubing string one segment distance; Can be next stage packer deblocking the space of underload pulling force is provided, thereby realized the classification deblocking of the less pulling force of stratified operation packer; Also, can prevent in the use that packing device and anchoring device sand from burying, thereby avoid the generation of down-hole accident owing to the effect of packing element 6.
Claims (1)
1. oil well grappling formula classification deblocking packer; Comprise by top connection, upper center tube, lower center tube, lower contact, packing element group, lock dog, snap seat, snap, cylinder sleeve, set packing device that shear pin, piston constitute and the anchoring device that constitutes by packing element cover, upper cone, slips, lower cone, helmet; It is characterized in that: between the upper cone upper end of packing element cover outer tube wall and top connection, also be set with the fluid cylinder of a packing element and short tube shape, fluid cylinder is to be fixed on packing element through columniform deblocking shear pin to put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202150486U CN202152661U (en) | 2011-06-23 | 2011-06-23 | Anchoring type graded deblocking packer for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202150486U CN202152661U (en) | 2011-06-23 | 2011-06-23 | Anchoring type graded deblocking packer for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202152661U true CN202152661U (en) | 2012-02-29 |
Family
ID=45693161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202150486U Expired - Lifetime CN202152661U (en) | 2011-06-23 | 2011-06-23 | Anchoring type graded deblocking packer for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202152661U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373075B (en) * | 2014-11-07 | 2017-04-12 | 中国石油天然气股份有限公司 | Fracturing packer |
| CN107842338A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Expanded graphite thermal expansion packer |
| CN112127827A (en) * | 2020-10-22 | 2020-12-25 | 中国海洋石油集团有限公司 | Large-drift-diameter packer |
-
2011
- 2011-06-23 CN CN2011202150486U patent/CN202152661U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373075B (en) * | 2014-11-07 | 2017-04-12 | 中国石油天然气股份有限公司 | Fracturing packer |
| CN107842338A (en) * | 2016-09-18 | 2018-03-27 | 中国石油化工股份有限公司 | Expanded graphite thermal expansion packer |
| CN112127827A (en) * | 2020-10-22 | 2020-12-25 | 中国海洋石油集团有限公司 | Large-drift-diameter packer |
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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: 20120229 |