CN203939478U - Hydraulic expansion type high-temperature well completion packer - Google Patents
Hydraulic expansion type high-temperature well completion packer Download PDFInfo
- Publication number
- CN203939478U CN203939478U CN201320746391.2U CN201320746391U CN203939478U CN 203939478 U CN203939478 U CN 203939478U CN 201320746391 U CN201320746391 U CN 201320746391U CN 203939478 U CN203939478 U CN 203939478U
- Authority
- CN
- China
- Prior art keywords
- steel bushing
- expansion
- pipe
- expansion pipe
- sealing
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 239000003566 sealing material Substances 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 6
- -1 fluorubber Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Abstract
A hydraulic expansion type high-temperature well completion packer belongs to the technical field of oil field downhole well completion. Through threaded connection and sealing between top connection and the parent tube, the steel bushing is welded to the outside of the parent tube, an expansion pipe is sleeved outside the steel bushing, an O-shaped rubber sealing ring is adopted for sealing between the expansion pipe and the steel bushing, the expansion pipe is limited through a limiting ring, the limiting ring is welded to the steel bushing, an outer sealing ring is sleeved outside the expansion pipe, and a one-way valve is installed on the parent tube. The utility model has the advantages of through the direct inflation expansion pipe of hydraulic pressure, need not to adopt special expansion head inflation construction, safe and reliable, high temperature resistant sealing material seals the outer annular space of pipe, implements the effective seal of outside of tubes, rational in infrastructure, the atress is even, construction process is simple, easily operation.
Description
Technical field
The utility model relates to a kind of hydraulic buckling type high temperature completion packer, belongs to oil field well completion technique field.
Background technology
Along with constantly carrying out of exploration and development, oil well depth is to deep-well, ultradeep well development, and the feature of ultradeep well is that temperature is all very high, and the bottom hole temperature (BHT) of 5000m deep-well can reach 150～250 DEG C.In the time of oil and gas development completion construction operation, according to production engineering specifications, need to adopt external packer of pipe to carry out packing to pit shaft, require packer permanently effective sealing after setting for this reason.So the performance requirement to downhole tool packer is also more and more higher, and can packer accessory packing element bear the key factor that down-hole high temperature high pressure liquid is judgement packer quality good or not.The external packer of pipe that oil-water well is generally applied in Completion Operations at present mainly contains hydraulic expanding external packer of pipe, hydraulic compression type external packer of pipe, meets three kinds of structure typess such as profit inflatable packer.But the heatproof technical indicator of domestic packing element is up to 160 DEG C of left and right, cannot meet the needs of high temperature completion, though have high-temperature resistant rubber material expensive abroad.At present oil field high temperature completion mode, mainly taking barefoot completion as main, can not realize the outer effectively segmentation of pipe exploitation, causes in subsequent production process Water-Content Rise fast, and the problem that oil reservoir produced degree is low, needs the high temperature resistant completion tool in research buried hill badly.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of hydraulic buckling type high temperature completion packer.
A kind of hydraulic buckling type high temperature completion packer, between top connection and base tube, be threaded connection and seal, base tube outside welding steel bushing, steel bushing overcoat has expansion tube, between expansion tube and steel bushing, adopt O shape rubber seal rings for seal, expansion tube is spacing by spacing ring, and spacing ring is welded on steel bushing, expansion tube overcoat has pipe exterior seal ring, and one way valve is installed on base tube.
The utility model has the advantages that by the hydraulic pressure expansion tube that directly swells, without adopting the construction of expanding of special swollen head, safe and reliable; The outer annular space of high temperature sealing material sealed tube, implements the outer effectively packing of pipe; Rational in infrastructure, stressed even, construction technology is simple, easy operating.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, does not form to improper restriction of the present utility model, wherein:
Fig. 1 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Detailed description of the invention
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1,
A kind of hydraulic buckling type high temperature completion packer, effectively prevent that Yin Gaowen from causing ageing of rubber, the problem of seal failure, between top connection 1 and base tube 2, be threaded connection and seal, base tube 2 outside welding steel bushings 7, steel bushing 7 overcoats have expansion tube 6, between expansion tube 6 and steel bushing 7, adopt O shape rubber seal 4 to seal, expansion tube 6 is spacing by spacing ring 3, spacing ring 3 is welded on steel bushing 7, the pipe exterior seal ring 5 that expansion tube 6 overcoats are made up of exotic materials such as fluorubber, polytetrafluoroethylene (PTFE), soft metals, is provided with one way valve 8 on base tube 2.
Embodiment 2: as shown in Figure 1,
A kind of hydraulic buckling type high temperature completion packer, is made up of top connection 1, base tube 2, spacing ring 3, O shape rubber seal 4, pipe exterior seal ring 5, expansion tube 6, steel bushing 7, one way valve 8 etc.Between top connection 1 and base tube 2, be threaded connection and seal, base tube 2 outside welding steel bushings 7, steel bushing 7 overcoats have expansion tube 6, between expansion tube 6 and steel bushing 7, adopt O shape rubber seal 4 to seal, expansion tube 6 is spacing by spacing ring 3, spacing ring 3 is welded on steel bushing 7, the pipe exterior seal ring 5 that expansion tube 6 overcoats are made up of exotic materials such as fluorubber, polytetrafluoroethylene (PTFE), soft metals.When hydraulic buckling type high temperature completion packer setting, by beating high pressure to base tube is inner, liquid enters the annular space between base tube 2 and expansion tube 6 by one way valve 8, and extrusion expansion pipe 6 outwards expands, make the pipe exterior seal ring 5 outside expansion tube 6 be adjacent to bore hole or Wall of Cased Hole, realize the packing of well section.Pipe exterior seal ring 5 is high temperature resistant, can realize the object of the bore hole of high-temperature stratum or the segmentation packing of cased well section.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.
Claims (1)
1. a hydraulic buckling type high temperature completion packer, it is characterized in that being threaded connection and sealing between top connection and base tube, base tube outside welding steel bushing, steel bushing overcoat has expansion tube, between expansion tube and steel bushing, adopt O shape rubber seal rings for seal, expansion tube is spacing by spacing ring, and spacing ring is welded on steel bushing, expansion tube overcoat has pipe exterior seal ring, and one way valve is installed on base tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746391.2U CN203939478U (en) | 2013-11-22 | 2013-11-22 | Hydraulic expansion type high-temperature well completion packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746391.2U CN203939478U (en) | 2013-11-22 | 2013-11-22 | Hydraulic expansion type high-temperature well completion packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939478U true CN203939478U (en) | 2014-11-12 |
Family
ID=51858801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746391.2U Expired - Fee Related CN203939478U (en) | 2013-11-22 | 2013-11-22 | Hydraulic expansion type high-temperature well completion packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569603A (en) * | 2014-10-14 | 2016-05-11 | 中国石油天然气股份有限公司 | Sealing device for high-temperature well completion |
| CN110094191A (en) * | 2018-01-29 | 2019-08-06 | 中国石油化工股份有限公司 | A kind of thermal production well fragment-force injection-production column jacket and method |
-
2013
- 2013-11-22 CN CN201320746391.2U patent/CN203939478U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569603A (en) * | 2014-10-14 | 2016-05-11 | 中国石油天然气股份有限公司 | Sealing device for high-temperature well completion |
| CN110094191A (en) * | 2018-01-29 | 2019-08-06 | 中国石油化工股份有限公司 | A kind of thermal production well fragment-force injection-production column jacket and method |
| CN110094191B (en) * | 2018-01-29 | 2021-06-29 | 中国石油化工股份有限公司 | Forced segmented injection-production pipe column and method for thermal production well |
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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: 20141112 Termination date: 20211122 |