CN202031526U - Open hole well packer - Google Patents
Open hole well packer Download PDFInfo
- Publication number
- CN202031526U CN202031526U CN2011200794421U CN201120079442U CN202031526U CN 202031526 U CN202031526 U CN 202031526U CN 2011200794421 U CN2011200794421 U CN 2011200794421U CN 201120079442 U CN201120079442 U CN 201120079442U CN 202031526 U CN202031526 U CN 202031526U
- Authority
- CN
- China
- Prior art keywords
- piston
- rubber tube
- packing element
- valve body
- sheath
- 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
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Abstract
An open hole well packer is characterized in that a rubber tube is sleeved outside an upper inner pipe; an upper joint, the upper inner pipe, a combination valve body, a lower inner pipe and a lower joint are connected in sequence; the lower part of an upper rubber tube sheath covers the upper part of the rubber tube; the upper part of the upper rubber tube sheath is sleeved outside the upper joint; the upper part of an lower rubber tube sheath covers the lower part of the rubber tube; the upper part of a sleeve gasket is connected with the lower part of the lower rubber tube sheath; the lower part of the sleeve gasket is sleeved outside the combination valve body; an upper piston and a lower piston are mounted between the sleeve gasket and the lower inner pipe; preset liquid is poured above the upper piston; the lower piston is arranged below the upper piston; a communication hole is formed on the upper piston and is positioned between the upper piston and the lower piston; a vertical aperture passage is arranged on the combination valve body; and a one-way valve is mounted at the upper part of the vertical aperture passage. The one-way valve is designed, so that the rubber tube is in an expanding state permanently; and the rubber tube expands via the preset liquid, and the one-way valve is not corroded or damaged, so that the rubber tube can work effectively for a long time, and the requirement that the bottom of an open hole well in an oil field is plugged permanently can be met.
Description
Technical field
The utility model is the equipment of using at the bottom of the permanent plugged well in oil field, is a kind of open hole well packer.
Background technology
The inflatable packer that oil-field flooding is used is that packing element expands outwardly when the packing element internal pressure is higher than the packing element external pressure, realization sealing oil casing annular space.Will deblocking when present inflatable packer does not have pressure in inside, be not suitable for the requirement at the bottom of the permanent plugged well in oil field, the inflatable packer that has is provided with unidirectional mechanism in inside, deblocking not in the time of can guaranteeing not have pressure reduction within a certain period of time, but keep the not limited time of deblocking, also be not suitable for the requirement at the bottom of the permanent plugged well in oil field.
Summary of the invention
The purpose of this utility model provides a kind of open hole well packer, is applicable to the requirement at the bottom of the permanent plugged well in oil field.
The purpose of this utility model is achieved in that and comprises top connection, last packing element sheath, packing element, pipe in going up, the lower rubber cylinder sheath, sealing shroud, one way valve, combinaing valve body, preset liquid, upper piston, pipe down, lower piston, lower contact, packing element is sleeved on outside the interior pipe, top connection, pipe in going up, combinaing valve body, pipe down, lower contact connects successively, last packing element sheath bottom covers packing element top, last packing element sheath top is sleeved on outside the top connection, lower rubber cylinder sheath top covers the packing element bottom, sealing shroud top is connected with lower rubber cylinder sheath bottom, the sealing shroud bottom is sleeved on outside the combinaing valve body, install piston between sealing shroud and the down interior pipe, lower piston, liquid is preset in perfusion on the upper piston, it under the upper piston lower piston, linked hole is arranged on the upper piston, linked hole is between upper piston and the lower piston, vertical duct is arranged on the combinaing valve body, and one way valve is installed on the top in vertical duct.
The beneficial effects of the utility model are: designed one way valve, made packing element forever be in expansion state, packing element is by presetting liquid expansion, and one way valve can corrosion and damage, and therefore, packing element can permanently effective work, can satisfy the requirement at the bottom of the permanent plugged well of oil field open hole well.
Description of drawings
Fig. 1 is a structure assembling drawing of the present utility model.
The specific embodiment
Below in conjunction with Fig. 1 embodiment of the present utility model is described.
As shown in the figure, embodiment of the present utility model comprises top connection 1, last packing element sheath 2, packing element 3, pipe 4 in going up, lower rubber cylinder sheath 5, sealing shroud 6, one way valve 7, combinaing valve body 8, preset liquid 9, upper piston 10, pipe 11 down, lower piston 12, lower contact 13, manage outside 4 in packing element 3 is sleeved on, top connection 1, pipe 4 in going up, combinaing valve body 8, pipe 11 down, lower contact 13 connects successively, last packing element sheath 2 bottoms cover packing element 3 tops, last packing element sheath 3 tops are sleeved on outside the top connection 1, lower rubber cylinder sheath 5 tops cover packing element 3 bottoms, sealing shroud 6 tops are connected with lower rubber cylinder sheath 5 bottoms, sealing shroud 6 bottoms are sleeved on outside the combinaing valve body 8, install piston 10 between sealing shroud 6 and the interior down pipe 11, lower piston 12, liquid 9 is preset in perfusion on the upper piston 10, it under the upper piston 10 lower piston 12, linked hole 14 is arranged on the upper piston 10, linked hole 14 is between upper piston 10 and the lower piston 12, vertical duct 9 is arranged on the combinaing valve body 8, one way valve 7 is installed on the top in vertical duct 9, liquid can only flow in the packing element 3 from vertical duct 9, can not flow out in packing element 3.
The utility model is down behind open hole well packing position, inside pressure water injection, injecting water flow between upper piston 10 and the lower piston 12 from linked hole 14, it is up to promote upper piston 10, and liquid 9 pressurizations of presetting on the upper piston 10 are pushed into the inner chamber of packing element 3 through one way valve 7, makes the packing element 3 expansion packing boreholes wall, after stopping pressurization, one way valve 7 is closed, and packing element 3 forever is in expansion state, thereby all the time at the bottom of the sealed well.
Claims (1)
1. open hole well packer, comprise top connection (1), last packing element sheath (2), packing element (3), pipe (4) in going up, lower rubber cylinder sheath (5), sealing shroud (6), one way valve (7), combinaing valve body (8), preset liquid (9), upper piston (10), pipe (11) down, lower piston (12), lower contact (13), it is characterized in that: manage in packing element (3) is sleeved on outside (4), top connection (1), pipe (4) in going up, combinaing valve body (8), pipe (11) down, lower contact (13) connects successively, last packing element sheath (2) bottom covers packing element (3) top, last packing element sheath (3) top is sleeved on outside the top connection (1), lower rubber cylinder sheath (5) top covers packing element (3) bottom, sealing shroud (6) top is connected with lower rubber cylinder sheath (5) bottom, sealing shroud (6) bottom is sleeved on outside the combinaing valve body (8), sealing shroud (6) and interior down the pipe between (11) are installed piston (10), lower piston (12), liquid (9) is preset in perfusion on the upper piston (10), under the upper piston (10) lower piston (12), linked hole (14) is arranged on the upper piston (10), linked hole (14) is between upper piston (10) and the lower piston (12), vertical duct (9) is arranged on the combinaing valve body (8), and one way valve (7) is installed on the top in vertical duct (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200794421U CN202031526U (en) | 2011-03-15 | 2011-03-15 | Open hole well packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200794421U CN202031526U (en) | 2011-03-15 | 2011-03-15 | Open hole well packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202031526U true CN202031526U (en) | 2011-11-09 |
Family
ID=44893828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200794421U Expired - Fee Related CN202031526U (en) | 2011-03-15 | 2011-03-15 | Open hole well packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202031526U (en) |
-
2011
- 2011-03-15 CN CN2011200794421U patent/CN202031526U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140315 |