CN201155318Y - Bore rod inner packer - Google Patents
Bore rod inner packer Download PDFInfo
- Publication number
- CN201155318Y CN201155318Y CNU2008200791120U CN200820079112U CN201155318Y CN 201155318 Y CN201155318 Y CN 201155318Y CN U2008200791120 U CNU2008200791120 U CN U2008200791120U CN 200820079112 U CN200820079112 U CN 200820079112U CN 201155318 Y CN201155318 Y CN 201155318Y
- Authority
- CN
- China
- Prior art keywords
- packer
- drilling rod
- piercing
- lower packet
- packer body
- 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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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a packer inside a drilling rod, which is characterized in that the packer comprises an upper packer body and a lower packer body; a lengthened small oil pipe is connected between the upper packer body and the lower packer body; the external walls of the upper packer body and the lower packer body are respectively provided with a packer slip and a packer glue cylinder. The packer has the advantages that when the drilling rod is leaked due to piercing, the packer is used for sealing the piercing-caused leakage points of the drilling rod sequentially up and down; therefore, the piercing-caused leakage points are separated out of the circulation passage, the slurry is further ensured to be normally circulated, the underground accidents caused by the piercing-caused leakage points which are enlarged continuously can be avoided, and the circular hollow conditions of the lower well pores can be improved, thus ensuring the normal operation of the drill. The packer has convenient usage, and reduces the operation difficulty and the potential safety hazard.
Description
Technical field
The utility model oil-well rig Aided Machine particularly relates to a kind of packer in the drilling rod that the drilling rod thorn leaks, trip-out is difficult that is applicable to.
Background technology
At present, in Process of Oil Well Drilling, because oil drill rocker will bear very big moment of torsion alternating bending, stretching or combined loads such as compression, interior external pressure at work, especially under the compound action that low-frequency alternating bending load and Gao Nei hydraulic fluid are washed away, its stress concentrates the position easily to produce tired source, leaks through expanding final formation drill pipe body thorn.After the drilling rod thorn leaked, the inspection thorn that needs to pull out of hole leaked single, and is unclean in the annular space if downhole conditions is bad in the process that pulls out of hole, and will cause and can't directly pull out of hole.If adopt the circulation measure, can make the interior mud of well be in short-circuit condition, the drilling rod thorn leaks area and can sting bigger and bigger, and to the not obviously improvement of drilling rod bottom annular space, therefore is easy to make be worse off.If directly pull out of hole, then make very difficulty of operation, excessively rotary drill rod or excessively on carry drilling rod and all may cause drill rod breaking, the formation drilling tool well accident that falls.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of simple in structure, be applicable to the drilling rod thorn packer in the drilling rod of difficulty that leaks, pulls out of hole.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: packer in the drilling rod, it is characterized in that: comprise upper packer body and lower packet body, between upper packer body and lower packet body, be connected with the lengthening little oil pipe, be shaped on packer slip on the outer wall of upper packer body and lower packet body respectively, on upper packer body and lower packet body, the packer sealing packing element be installed also.
The utility model can also adopt following technical scheme:
The layout of described packer slip is: the packer slip on upper packer body and the lower packet body outer wall is the elastomeric material slips, is shaped on several pieces dental laminas on each packer slip.
Advantage and the good effect that the utlity model has are: because the utility model has adopted technique scheme, when the drilling rod thorn of rig leaks, utilize this packer to distinguish the seat envelope up and down at drilling rod thorn leak source, concrete operations are suppressed for utilizing the little oil pipe turn on pump, the upper packer slips is opened, bite the inwall of drilling rod, continue to suppress and make the upper packer packing element be subjected to compression swelling, thus the space on packing drilling rod thorn leak source and packer top; Continue to suppress, make setting ball fall into the lower packet body, again the space of packing drilling rod thorn leak source and packer bottom.The thorn leak source can be isolated in outside the circulation canal like this, and then guarantee drilling fluid energy normal circulation, the continuation that not only can avoid stinging leak source increases, and can improve lower part borehole annular space situation again, normally carries out thereby guarantee to pull out of hole.This packer is easy to use, reduces task difficulty, reduces potential safety hazard.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model user mode schematic diagram.
Among the figure: 1, lower packet body; 2, lower packet slips; 3, lower packet packing element; 4, lengthening little oil pipe; 5, upper packer body; 6, upper packer slips; 7, upper packer packing element, 8, drilling rod; 9, thorn leak source.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 and Fig. 2, packer in the drilling rod, comprise tubulose upper packer body 5 and lower packet body 1, between upper packer body and lower packet body, be connected with lengthening little oil pipe 3, be shaped on upper packer slips 6 on the outer wall of upper packer body, upper packer packing element 7 also is installed on the upper packer body.On lower packet body outer wall, be shaped on lower packet slips 2, lower packet packing element 3 is installed on the lower packet body.Packer slip on upper packer body and the lower packet body outer wall is an elastomeric material system slips, is shaped on four dental laminas on each packer slip at least.
Operating principle of the present utility model is:
When finding that drilling rod 8 spinosities leak, with special-purpose setting tool the utility model packer is arrived drilling rod 8 place's correspondence positions down, make the joint hoop and the drilling rod of lengthening little oil pipe 3 be in correspondence position, in drilling rod thorn leak source seat below 9 envelope, concrete operations are turn on pump circulation after the pitching in little oil pipe, suppress to the inner annular space of little oil pipe, upper packer slips 6 is opened, bite the inwall of drilling rod 8, continue to suppress and make upper packer packing element 7 be subjected to compression swelling, thus the space on packing thorn leak source 9 and packer top; Continue then to suppress, make setting ball fall into the lower packet body, continue to suppress, go on foot the space of packing thorn leak source and packer bottom again.So just the thorn leak source is isolated in outside the circulation canal, and then has guaranteed drilling fluid energy normal circulation, the continuation that so both can avoid stinging leak source increases, and can improve lower part borehole annular space situation again, normally carries out thereby guarantee to pull out of hole.
Claims (2)
1. packer in the drilling rod, it is characterized in that: comprise upper packer body and lower packet body, between upper packer body and lower packet body, be connected with the lengthening little oil pipe, be shaped on packer slip on the outer wall of upper packer body and lower packet body respectively, on upper packer body and lower packet body, the packer sealing packing element be installed also.
2. packer in the drilling rod according to claim 1, it is characterized in that: the layout of described packer slip is: the packer slip on upper packer body and the lower packet body outer wall is the elastomeric material slips, is shaped on several pieces dental laminas on each packer slip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200791120U CN201155318Y (en) | 2008-02-19 | 2008-02-19 | Bore rod inner packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200791120U CN201155318Y (en) | 2008-02-19 | 2008-02-19 | Bore rod inner packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155318Y true CN201155318Y (en) | 2008-11-26 |
Family
ID=40103101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200791120U Expired - Fee Related CN201155318Y (en) | 2008-02-19 | 2008-02-19 | Bore rod inner packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155318Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586455B (en) * | 2009-06-15 | 2012-10-10 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion type packer |
| CN103216209A (en) * | 2013-04-01 | 2013-07-24 | 中国海洋石油总公司 | Pipe interior packer for detecting sealing property of oil sleeve |
| CN103790531A (en) * | 2014-01-21 | 2014-05-14 | 中国海洋石油总公司 | Bridging separating unit and operation method thereof |
| CN107906299A (en) * | 2017-11-15 | 2018-04-13 | 西华大学 | Capping tools inside a kind of pipeline |
-
2008
- 2008-02-19 CN CNU2008200791120U patent/CN201155318Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586455B (en) * | 2009-06-15 | 2012-10-10 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion type packer |
| CN103216209A (en) * | 2013-04-01 | 2013-07-24 | 中国海洋石油总公司 | Pipe interior packer for detecting sealing property of oil sleeve |
| CN103216209B (en) * | 2013-04-01 | 2015-10-21 | 中国海洋石油总公司 | Packer in tubing and casing sealing propertytest pipe |
| CN103790531A (en) * | 2014-01-21 | 2014-05-14 | 中国海洋石油总公司 | Bridging separating unit and operation method thereof |
| CN107906299A (en) * | 2017-11-15 | 2018-04-13 | 西华大学 | Capping tools inside a kind of pipeline |
| CN107906299B (en) * | 2017-11-15 | 2019-06-25 | 西华大学 | A kind of pipeline inside capping tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Beijing City, Dongcheng District Chaoyangmen No. 25 North Street, building, zip code: 100010 Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China National Offshore Oil Corporation Address before: Beijing City, Dongcheng District Chaoyangmen No. 25 North Street, building, zip code: 100010 Co-patentee before: CNOOC Oil Base Group Co., Ltd. Patentee before: China National Offshore Oil Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20160219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |