CN201460803U - Self-expanding packer when meeting oil and water - Google Patents
Self-expanding packer when meeting oil and water Download PDFInfo
- Publication number
- CN201460803U CN201460803U CN200920110759XU CN200920110759U CN201460803U CN 201460803 U CN201460803 U CN 201460803U CN 200920110759X U CN200920110759X U CN 200920110759XU CN 200920110759 U CN200920110759 U CN 200920110759U CN 201460803 U CN201460803 U CN 201460803U
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- Prior art keywords
- tube
- oil
- packer
- central tube
- self
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- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims abstract description 32
- 238000005987 sulfurization reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 17
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 238000012856 packing Methods 0.000 description 8
- 239000003129 oil well Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A packer capable of self-expanding when meeting oil and water is applied to the technical field of oil drilling, well completion and exploitation operation. The top end of the central tube is connected with a coupling, the lower end of the central tube is provided with threads, and the outer wall of the central tube is vulcanized with an upper sealing rubber cylinder and a lower sealing rubber cylinder. The upper sealing rubber cylinder is connected with the lower sealing rubber cylinder, and the upper end of the upper sealing rubber cylinder and the lower end of the lower sealing rubber cylinder are respectively vulcanized with a protective ring. And limiting rings are respectively fixed on the outer sides of the protection rings. The effect is as follows: the sealing element is provided with the combination of the rubber tube which expands when meeting oil and the rubber tube which expands when meeting water, so that the sealing element can not have expansion seat seal due to the uncertainty of the medium at the seat seal position after entering the well. The self-sealing packer simplifies the construction operation procedure, is reliable in sealing, prolongs the service cycle of a sealing element, and can avoid pollution to an oil layer.
Description
Technical field
The utility model relates to oil drilling, completion, exploitation or stimulation work technical field, particularly a kind of downhole packer.It is a kind of self-expanding packer.
Background technology
At present, packer is widely used in comprising in many technological measures such as drilling well, completion, exploitation, stimulation work in petroleum exploration and development as a kind of down-hole special tool of oil well plugging.The packer that is used for oil well plugging has a lot.The commonplace use in oil field mechanical type, hydraulic formula, hydraulic pressuring difference formula type arranged.As patent US.6073692 is that a kind of corrugated axle causes that with waterpower or mechanical force cross sectional shape changes and the packer of expansion; US.4781249 is a kind of packer of realizing gradual expansion by valving; US.4886117 is provided with complicated multilayer prestressing force metal netting between inside and outside elastomer layer, cause the packer of expansion by borehole fluid pressure.Loaded down with trivial details operation and construction such as " setting " of these several packers need manually be pressurizeed, rotation, infusion are suppressed.Self-packing packer patent CN.2386189Y is made up of joint, lining, packing element etc., water inlet back shutoff.CN.1236857A adopts water-based fluid to activate packing element and realize shutoff under the guider effect.CN.2861469Y adopts water or oil based fluids activation to be adhered to the stifled core of expanded rubber that the outside is provided with expanded radially guide ring metal hollow mandrel.The CN1249390A instrument is by self-expanding glue bowl, thrust ring, steel loop, spacer ring are formed up and down.The shortcoming of above-mentioned packer is that structure is comparatively complicated, does not have " protrusion-dispelling " mechanism of working seal element shoulder protection, thereby can not reach best sealing, influences packer down-hole application life.
The utility model content
The purpose of this utility model is: a kind of chance oil is provided, meets water self-expanding packer, adopt the caulking gum of oil or aqueous medium self-expanding, realize the shutoff of oil well annular space, simplify self-packing packer constructing operation program, sealing is reliable, prolong the potted component life cycle, avoid oil reservoir is polluted.Overcome the deficiencies such as " protrusion-dispelling " mechanism influence sealing that existing self-packing packer exists complex structure, the protection of potted component shoulder.
The technical solution adopted in the utility model is: meet oil, meet water self-expanding packer; mainly form by box cupling, central tube, spacing collar, protection ring, last caulking gum tube and lower seal rubber tube; top at central tube is connected with box cupling; there is screw thread lower end at central tube, and the self-expanding packer can be connected on the oil pipe tubing string.It is characterized in that: caulking gum tube and lower seal rubber tube on sulfuration on the outer wall of central tube has.Last caulking gum tube is connected with the lower seal rubber tube, and vulcanizing respectively in the lower end of last caulking gum tube upper end and lower seal rubber tube has protection ring.The outside at protection ring is fixed with spacing collar respectively.The material that last caulking gum tube uses is a water logging bubble expanded rubber material; The material that the lower seal rubber tube uses is an oil immersion bubble expanded rubber material.Chance oil, chance water self-expanding packer are lowered in the oil well, run into crude oil or run into water and can both realize self-expanding, shutoff oil well annular space.
The length of described central tube is between 2000～9000 millimeters.
Horizontal screw is arranged on the described spacing collar, in the horizontal screw of spacing collar caging bolt is arranged, what caging bolt adopted is fluting awl end holding screw (GB71-85), on the outer wall of central tube circular trough is arranged, the end of caging bolt is fixed on spacing collar on the central tube in circular trough.
Described spacing collar outer wall has taper surface.
For better protection is gone up caulking gum tube and lower seal rubber tube, protection ring in the middle of being fixed with between last caulking gum tube and lower seal rubber tube.
Chance oil, chance water self-expanding packer are connected on the tubing string G.I.H.After downhole fluid (crude oil or water) contacted, last caulking gum tube and lower seal rubber tube volume can radially expand, and protection ring stressed expansion simultaneously finally realizes annular space under the plugged well.
The beneficial effects of the utility model: the utility model is met oil, is met water self-expanding packer, can realize the shutoff of oil well annular space, because potted component has the combination of meeting oily expansion packing element and water-swellable packing element, the seat that can not expand because of the uncertainty that seat seals the position medium is sealed.Simplify self-packing packer constructing operation program, sealing is reliable, prolongs the potted component life cycle, can avoid oil reservoir is polluted.Chance oil, chance water self-expanding packer in use do not need special installation and auxiliary equipment, do not need as conventional packer, manually to pressurize yet, the loaded down with trivial details operation that sets such as rotation, infusion are suppressed, only need simply measure the external diameter of going up caulking gum tube 5 and lower seal rubber tube 6 in the practicality, rationally join to be lowered to after growing and get final product.The design of protection ring shields to the potted component shoulder, can guarantee the packer sealing effect, prolongs the life-span of potted component.Can reach the 30MPa operting differential pressure behind the packer sealing.
Description of drawings
Fig. 1 is that the utility model is met oil, met water self-expanding packer construction generalized section.
Fig. 2 is the local enlarged diagram of Fig. 1.
Among the figure, 1. box cupling, 2. central tube, 3. spacing collar, 4. protection ring is 5. gone up caulking gum, 6. lower seal rubber, 7. caging bolt.
The specific embodiment
Embodiment 1: meeting oil, meet water self-expanding packer with one is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model is met oil, is met water self-expanding packer, is made up of box cupling 1, central tube 2, spacing collar 3, protection ring 4, last caulking gum tube 5, lower seal rubber tube 6 and caging bolt 7.Be connected with box cupling 1 on the top of central tube 2, screw thread arranged in the lower end of central tube 2.The external diameter of central tube 2 is 139.7 millimeters, and length is 4000 millimeters
Consult Fig. 2.Be fixed with a spacing collar 3 respectively in the outside of protection ring 4.Symmetry has two horizontal screws on spacing collar 3, a caging bolt 7 is arranged in the horizontal screw of spacing collar 3, what caging bolt 7 adopted is fluting awl end holding screw (GB71-85), the symmetrical circular groove is arranged on the outer wall of central tube 2, the end of caging bolt 7 is fixed on spacing collar 3 on the central tube 2 in circular trough.Spacing collar 3 outer walls have a taper surface.
Claims (5)
1. meet oil for one kind; meet water self-expanding packer; mainly by box cupling (1); central tube (2); spacing collar (3); protection ring (4); last caulking gum tube (5) and lower seal rubber tube (6) are formed; be connected with box cupling (1) on the top of central tube (2); there is screw thread lower end at central tube (2); it is characterized in that: sulfuration has last caulking gum tube (5) and lower seal rubber tube (6) on the outer wall of central tube (2); last caulking gum tube (5) is connected with lower seal rubber tube (6); vulcanizing respectively in the lower end of last caulking gum tube (5) upper end and lower seal rubber tube (6) has protection ring (4), is fixed with spacing collar (3) respectively in the outside of protection ring (4).
2. chance oil according to claim 1, chance water self-expanding packer, it is characterized in that: the length of described central tube (2) is between 2000～9000 millimeters.
3. chance oil according to claim 1, chance water self-expanding packer, it is characterized in that: described spacing collar has horizontal screw on (3), caging bolt (7) is arranged in the horizontal screw of spacing collar (3), what caging bolt (7) adopted is fluting awl end holding screw, on the outer wall of central tube (2) circular trough is arranged, the end of caging bolt (7) is in circular trough.
4. chance oil according to claim 1, chance water self-expanding packer, it is characterized in that: described spacing collar (3) outer wall has taper surface.
5. according to claim 1,2,3 or 4 described chance oil, chance water self-expanding packer, it is characterized in that: protection ring in the middle of between last caulking gum tube (5) and lower seal rubber tube (6), being fixed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920110759XU CN201460803U (en) | 2009-08-07 | 2009-08-07 | Self-expanding packer when meeting oil and water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920110759XU CN201460803U (en) | 2009-08-07 | 2009-08-07 | Self-expanding packer when meeting oil and water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460803U true CN201460803U (en) | 2010-05-12 |
Family
ID=42388157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920110759XU Expired - Lifetime CN201460803U (en) | 2009-08-07 | 2009-08-07 | Self-expanding packer when meeting oil and water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460803U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003158A (en) * | 2010-11-20 | 2011-04-06 | 中国石油集团西部钻探工程有限公司 | Base tube expandable packer capable of secondarily expanding at time of meeting medium |
| CN102071893A (en) * | 2010-12-03 | 2011-05-25 | 中国石油天然气股份有限公司 | Underground self-expansion hanger |
| CN102071901A (en) * | 2010-12-17 | 2011-05-25 | 中国石油天然气股份有限公司 | Horizontal well high pressure resistant packer for reservoir transformation |
| CN102337855A (en) * | 2010-07-14 | 2012-02-01 | 中国石油天然气股份有限公司 | Pre-filling self-expansion packer for well completion |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN104755698A (en) * | 2012-10-16 | 2015-07-01 | 哈里伯顿能源服务公司 | Controlled swell-rate swellable packer and method |
| CN105674827A (en) * | 2016-03-30 | 2016-06-15 | 宏大矿业有限公司 | Expansion tamper for high-temperature blast hole and high-temperature blast hole subsection water injection cooling method |
| CN106014328A (en) * | 2016-07-19 | 2016-10-12 | 大庆市华禹石油机械制造有限公司 | Self-expanding plugging device |
| CN106522873A (en) * | 2016-12-28 | 2017-03-22 | 隆学武 | Rubber sleeve with disk spring, packer and bridge plug |
| CN107100581A (en) * | 2017-06-01 | 2017-08-29 | 中国石油集团渤海钻探工程有限公司 | A kind of big orifice combined type Self-expandable packer |
| CN109138940A (en) * | 2017-06-28 | 2019-01-04 | 中国石油天然气股份有限公司 | Well completion pipe string |
-
2009
- 2009-08-07 CN CN200920110759XU patent/CN201460803U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337855A (en) * | 2010-07-14 | 2012-02-01 | 中国石油天然气股份有限公司 | Pre-filling self-expansion packer for well completion |
| CN102003158A (en) * | 2010-11-20 | 2011-04-06 | 中国石油集团西部钻探工程有限公司 | Base tube expandable packer capable of secondarily expanding at time of meeting medium |
| CN102003158B (en) * | 2010-11-20 | 2014-01-08 | 中国石油集团西部钻探工程有限公司 | Base tube expandable packer capable of secondarily expanding at time of meeting medium |
| CN102071893A (en) * | 2010-12-03 | 2011-05-25 | 中国石油天然气股份有限公司 | Underground self-expansion hanger |
| CN102071901A (en) * | 2010-12-17 | 2011-05-25 | 中国石油天然气股份有限公司 | Horizontal well high pressure resistant packer for reservoir transformation |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN102561988B (en) * | 2012-01-18 | 2014-04-02 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN104755698B (en) * | 2012-10-16 | 2017-11-21 | 哈里伯顿能源服务公司 | The in check inflatable packer of expansion rate and method |
| CN104755698A (en) * | 2012-10-16 | 2015-07-01 | 哈里伯顿能源服务公司 | Controlled swell-rate swellable packer and method |
| US9869152B2 (en) | 2012-10-16 | 2018-01-16 | Halliburton Energy Services, Inc. | Controlled swell-rate swellable packer and method |
| US10012051B2 (en) | 2012-10-16 | 2018-07-03 | Halliburton Energy Services, Inc. | Controlled swell-rate swellable packer and method |
| US10443340B2 (en) | 2012-10-16 | 2019-10-15 | Halliburton Energy Services, Inc. | Method for making controlled swell-rate swellable packer |
| CN105674827A (en) * | 2016-03-30 | 2016-06-15 | 宏大矿业有限公司 | Expansion tamper for high-temperature blast hole and high-temperature blast hole subsection water injection cooling method |
| CN105674827B (en) * | 2016-03-30 | 2018-03-13 | 宏大矿业有限公司 | Expansion blockage thing and high temperature blasthole subsection water injection cool-down method for high temperature blasthole |
| CN106014328A (en) * | 2016-07-19 | 2016-10-12 | 大庆市华禹石油机械制造有限公司 | Self-expanding plugging device |
| CN106014328B (en) * | 2016-07-19 | 2018-10-09 | 徐海英 | From swollen plugging device |
| CN106522873A (en) * | 2016-12-28 | 2017-03-22 | 隆学武 | Rubber sleeve with disk spring, packer and bridge plug |
| CN107100581A (en) * | 2017-06-01 | 2017-08-29 | 中国石油集团渤海钻探工程有限公司 | A kind of big orifice combined type Self-expandable packer |
| CN109138940A (en) * | 2017-06-28 | 2019-01-04 | 中国石油天然气股份有限公司 | Well completion pipe string |
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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 |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |