CN202249986U - Sand preventing casing hanger - Google Patents
Sand preventing casing hanger Download PDFInfo
- Publication number
- CN202249986U CN202249986U CN2011203458719U CN201120345871U CN202249986U CN 202249986 U CN202249986 U CN 202249986U CN 2011203458719 U CN2011203458719 U CN 2011203458719U CN 201120345871 U CN201120345871 U CN 201120345871U CN 202249986 U CN202249986 U CN 202249986U
- Authority
- CN
- China
- Prior art keywords
- hanger
- casing
- sleeve pipe
- gravel
- liner hanger
- 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
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a sand preventing casing hanger. The hanger comprises casings into which cement is injected and a liner hanger and is characterized in that the liner hanger is supported and fixed by round supports uniformly welded on the casings; a plurality of expandable rubber rings are sleeved on the upper part of the liner hanger; three gravel end holes are uniformly arranged on the liner hanger; the bottom of the liner hanger is connected with a screen by a crossover coupling; a casing gasket is arranged at the bottom of the screen; a big casing cap is arranged at the bottom of the casing gasket; the crossover coupling, the screen, the casing gasket and the big casing cap are arranged in an annular gap of the liner hanger; and the round supports are metallic balls. The casing hanger has the following advantages that: the casing hanger is simpler and faster to install and operate and saves cost; automatic closing of the whole annular domain system can be realized; the gravels can be replaced without limit until the gravel filter layer is uniform and complete and the replacement process is simple and convenient; and the gravel end holes can be automatically closed off when the device installation is completed.
Description
Technical field
The utility model relates to a kind of sand resistant sleeve pipe hanger.
Background technology
Resistance sand device is a kind of well instrument that is specifically designed to the aquifer of unconsolidated sediment composition.Up to now, the effect of the resistance sand device that designs for the gravel packing that well is installed usually all can not be satisfactory, even under some serious situation, can cause the damage of whole well.In the middle of the reason of major part failure; Must should be mentioned that the difficulty of erection equipment; Use complicated interior arrangement to open and close the gravel mouth regularly; The airtight meeting of ring domain is because the incorrect installation of rubber ring and gravel packing, and causes some part of strainer to be directly exposed in the techonosphere and be damaged, and causing the result is exactly that water mixes with sand and the damage of suction pump.And if stable and mounting sleeve hanger safely needs to use stationary slip and enough drill string weight, fitting operation is loaded down with trivial details, has increased the input of cost.Therefore, be badly in need of a kind of improved technology and solve existing this problem in the present technology.
Summary of the invention
The purpose of the utility model provides a kind of sand resistant sleeve pipe hanger.
The technical scheme that the utility model adopts is:
The sand resistant sleeve pipe hanger; Comprise the sleeve pipe and the extension hanger that are marked with cement; Said extension hanger is through evenly being welded in the circular support thing support fixation on the sleeve pipe, and said extension hanger top is with a plurality of expandable rubber rings, evenly is provided with three gravel ports on the said extension hanger; The bottom of said extension hanger is connected with screens through crossover sub; Said screens bottom is provided with the sleeve pipe liner, and said sleeve pipe liner bottom also is provided with bull plug, and said crossover sub, screens, sleeve pipe liner and bull plug all place the annular space of extension hanger.
Said circular support thing is a Metal Ball.
The utility model has the advantages that: extension hanger is through evenly being welded in the circular support thing support fixation on the sleeve pipe, makes fitting operation simple and fast more, also practices thrift cost; On the circular support thing, just can realize the automatic sealing of full annular domain system through rubber ring and arrangement extension hanger; It is even and complete unrestrictedly to change the gravel packing that gravel forms in the annular space of extension hanger, and the replacing process is easy; When finishing device is installed, can shut the gravel port automatically.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model.
Wherein: 1, sleeve pipe, 2, extension hanger, 3, the circular support thing, 4, rubber ring, 5, the gravel port, 6, crossover sub, 7, screens, 8, the sleeve pipe liner, 9, bull plug, 10, the annular space of extension hanger.
The specific embodiment
As shown in Figure 1, the sand resistant sleeve pipe hanger of the utility model comprises the sleeve pipe 1 and extension hanger 2 that are marked with cement; Said extension hanger 2 is through evenly being welded in circular support thing 3 support fixation on the sleeve pipe 1, makes fitting operation simple and fast more, also practices thrift cost; Can realize the automatic sealing of full annular domain system, said extension hanger 2 tops are with two expandable rubber rings 4, evenly are provided with three gravel ports 5 on the said extension hanger 2; The bottom of said extension hanger 2 is connected with screens 7 through crossover sub 6, and said screens 7 bottoms are provided with sleeve pipe liner 8, and said sleeve pipe liner 8 bottoms also are provided with bull plug 9; Said crossover sub 6, screens 7, sleeve pipe liner 8 and bull plug 9 all place the annular space 10 of extension hanger, the husky filtered water of screens 7 resistances, sleeve pipe liner 8 filter divide husky; Bull plug 9 stops up sandstone and gets into screens 7 and then get into the whole effect of influence in the water; Said circular support thing 3 is a Metal Ball, and it is even and complete unrestrictedly to change the gravel packing that gravel forms in the annular space 10 of extension hanger, and the replacing process is easy; When finishing device is installed, can shut gravel port 5 automatically.
The course of work:
Through extension hanger 2 being hung on three ellipse Metal Ball; Form a simple interior arrangement; Under the weight of extension hanger 2, cause that a lower removable annulus of relative position moves up, and so just pushes rubber ring 4 and is adjacent to extension hanger 2 tops; Cause rubber ring 4 to expand and prop up sleeve pipe 1, thereby shut the annular space between sleeve pipe 1 and the extension hanger 2.Extension hanger 2 tops are provided with a special positioner; Provide enough pressure (weight) extruding to place the spring of extension hanger 2 inside, and open three gravel ports 5 that can break away, gravel and water are exactly to get in the annular space 10 of extension hangers through gravel port 5; Form gravel packing; After accomplishing the arrangement of gravel packing, reclaim positioner and close gravel port 5 through the extruding that makes progress, installation work is accomplished.
Claims (2)
1. sand resistant sleeve pipe hanger; Comprise the sleeve pipe and the extension hanger that are marked with cement; It is characterized in that: said extension hanger is through evenly being welded in the circular support thing support fixation on the sleeve pipe, and said extension hanger top is with a plurality of expandable rubber rings, evenly is provided with three gravel ports on the said extension hanger; The bottom of said extension hanger is connected with screens through crossover sub; Said screens bottom is provided with the sleeve pipe liner, and said sleeve pipe liner bottom also is provided with bull plug, and said crossover sub, screens, sleeve pipe liner and bull plug all place the annular space of extension hanger.
2. sand resistant sleeve pipe hanger according to claim 1 is characterized in that: said circular support thing is a Metal Ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203458719U CN202249986U (en) | 2011-09-15 | 2011-09-15 | Sand preventing casing hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203458719U CN202249986U (en) | 2011-09-15 | 2011-09-15 | Sand preventing casing hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202249986U true CN202249986U (en) | 2012-05-30 |
Family
ID=46111245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203458719U Expired - Lifetime CN202249986U (en) | 2011-09-15 | 2011-09-15 | Sand preventing casing hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202249986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358523A (en) * | 2014-11-02 | 2015-02-18 | 郑州神利达钻采设备有限公司 | Drill rod with pad devices |
| CN106715827A (en) * | 2014-10-08 | 2017-05-24 | 哈里伯顿能源服务公司 | Liner drilling using retrievable directional bottom-hole assembly |
-
2011
- 2011-09-15 CN CN2011203458719U patent/CN202249986U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106715827A (en) * | 2014-10-08 | 2017-05-24 | 哈里伯顿能源服务公司 | Liner drilling using retrievable directional bottom-hole assembly |
| CN104358523A (en) * | 2014-11-02 | 2015-02-18 | 郑州神利达钻采设备有限公司 | Drill rod with pad devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108119073B (en) | Reverse circulation sand washing well-flushing pipe column | |
| CN103993615B (en) | A kind of large drawdown pipe well plugging structure and construction method thereof | |
| CN201778732U (en) | Oil pipe hanger for marine underwater upright oil production tree | |
| CN201908632U (en) | Offshore self-blowout and artificial lifting integrated well completion tubular column | |
| CN105156067B (en) | Underground coal mine hydraulic fracturing drilling and sealing device and method | |
| CN108086954B (en) | Horizontal well grading acid pickling acidification method | |
| NO346655B1 (en) | Segmented method and filter string for flow regulation in an oil-gas well structure | |
| CN202249986U (en) | Sand preventing casing hanger | |
| CN103216209B (en) | Packer in tubing and casing sealing propertytest pipe | |
| RU2578095C1 (en) | Method for isolation of water flow in open horizontal section producing wells | |
| CN107882515A (en) | A kind of sleeve pipe suspending apparatus | |
| CN109441390A (en) | A kind of 36 cun of monotubular double-wellhead extracting device of oil | |
| CN203847052U (en) | Hydraulic expansion type steel frame fracturing packer | |
| RU126362U1 (en) | PACKER FOR SELECTIVE OVERLAPPING OF THE INNER CAVITY OF A PIPE OR CASE COLUMN | |
| CN106368654B (en) | Multi-branch well control oil production pipe column and method | |
| CN103953367A (en) | Method of eliminating liquefaction in shield tunnel stratum in tunnel | |
| CN205858195U (en) | A kind of pressure testing tubing string of oil reservoirs of horizontal well sleeve pipe | |
| RU2013118562A (en) | LAPPING PACKER IN THE LANDING NIPPLE | |
| CN204851081U (en) | Middle part shut -in well pours into high temperature water under high pressure horizontal well completion pipe string of low -gravity liquid into | |
| CN209339894U (en) | A kind of 36 cun of monotubular double-wellhead extracting device of oil | |
| CN201125700Y (en) | Anti-theft blowout prevention double seal well apparatus | |
| CN204609829U (en) | Hanging packer | |
| CN204002684U (en) | A kind of inflatable packer | |
| CN203769701U (en) | Multifunctional rotary well packer | |
| CN203822226U (en) | Layered water injection tubular column for patching sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |