CN202900041U - Occupied drilling tool for single-barrel multi-well - Google Patents
Occupied drilling tool for single-barrel multi-well Download PDFInfo
- Publication number
- CN202900041U CN202900041U CN 201220617410 CN201220617410U CN202900041U CN 202900041 U CN202900041 U CN 202900041U CN 201220617410 CN201220617410 CN 201220617410 CN 201220617410 U CN201220617410 U CN 201220617410U CN 202900041 U CN202900041 U CN 202900041U
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- drilling tool
- occupy
- place drilling
- place
- occupied
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Abstract
The utility model discloses an occupied drilling tool for a single-barrel multi-well. An occupied drilling tool hanger (4) is located on a single-barrel multi-well base seat (7) through a sealing ring (3), the single-barrel multi-well base seat (7) is provided with a fixing device (2), the bottom of the occupied drilling tool hanger (4) is connected with drill rods (8) through threads, the bottom ends of the drill rods (8) are further connected with the drill rods through occupied drilling tool separation strings (5). The connection number of the occupied drilling tool separation strings (5) is allocated according to the site design depth. The last drill rod is connected with an occupied drilling tool plug (6), and the occupied drilling tool is integrally formed. The occupied drilling tool for the single-barrel multi-well is compact in structure, the using number of the occupied drilling tool separation strings can be specifically adjusted according to the site using condition, a well bore position of a subsequent well opening is reserved in advance, and a following well opening is guaranteed to have enough space in the same water separation guide pipe.
Description
Technical field
The utility model relates to oil well drilling device, is specifically related to the many wells of a kind of monotubular occupy-place drilling tool.
Background technology
At present, known many wells of monotubular wellhead assembly commonly used is to use a larger drill bit when surface hole drilling, simultaneously the well of several surface pipes is bored and open, then cement the well together behind the setting of casing respectively, but this technology well head projected depth when boring surface pipe is superficial, for can be directed with the darker or surface pipe under the surface pipe, then in same riser pipe, need every mouthful of well well in the many wells of monotubular is carried out respectively lower boring, but because the space is limited in the riser pipe, need to there be like this instrument not lower well head space of boring can be occupied in advance, to guarantee the normal exploitation of later stage well head.
Summary of the invention
The purpose of this utility model is: the many wells of a kind of monotubular occupy-place drilling tool is provided, when many wells of monotubular well head surface pipe need under darker or need directed beat inclined shaft or horizontal well the time, many wells of monotubular pedestal is installed behind lower complete riser pipe is stayed the preboring well, position at other every mouthful individual well is lowered to respectively the occupy-place drilling tool, in advance the borehole position of follow-up well head is reserved, guaranteed that the later stage well head has enough spaces in the middle of same riser pipe.
The scheme of the utility model technical solution problem is: this occupy-place drilling tool comprises fastening devices, occupy-place drilling tool hanger, the occupy-place drilling tool is separated string occupy-place drilling tool plug, many wells of monotubular pedestal and drilling rod, occupy-place drilling tool hanger is seated on many wells of monotubular pedestal through sealing ring, fixing device for installing on many wells of monotubular pedestal, the bottom of occupy-place drilling tool hanger is through threaded connection drill stem, the bottom of drilling rod is separated through the occupy-place drilling tool and is gone here and there again jointed rod, the number of connection that the occupy-place drilling tool is separated string is equipped with according to the Site Design depth requirements, last root drilling rod connects occupy-place drilling tool plug, whole formation occupy-place drilling tool.
Wherein, the external diameter of occupy-place drilling tool separation string and occupy-place drilling tool plug is not less than the external diameter size of single drill bit.
Wherein, occupy-place drilling tool hanger and occupy-place drilling tool are separated the string indoor design circulation canal, and body cylindrical and the bottom of occupy-place drilling tool plug all are designed with circulation canal.
The utlity model has following advantage: 1. structure is compact, and the occupy-place drilling tool is separated the string usage quantity and can specifically be regulated according to on-the-spot mode of occupation; 2. the indoor design of occupy-place drilling tool has circulation canal, is convenient in well cementing process unnecessary cement be recycled well head; 3. be designed with the presser type fastening devices, be convenient to pin in the well cementing process occupy-place drilling tool and prevent that occupy-place drilling tool back pressure is lifted.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1 occupy-place drilling tool is fetched and delivered instrument, 2 fastening devicess, and 3 sealing rings, 4 occupy-place drilling tool hangers, 5 occupy-place drilling tools are separated string, 6 occupy-place drilling tool plugs, 7 many wells of monotubular pedestals, 8 drilling rods, 9 riser pipes.
The specific embodiment
As shown in Figure 1, this occupy-place drilling tool comprises fastening devices 2, occupy-place drilling tool hanger 4, the occupy-place drilling tool is separated string 5 occupy-place drilling tool plugs 6, many wells of monotubular pedestal 7 and drilling rod 8, occupy-place drilling tool hanger 4 is seated on many wells of monotubular pedestal 7 through sealing ring 3, fixing device for installing 2 on many wells of monotubular pedestal 7, the bottom of occupy-place drilling tool hanger 4 is through threaded connection drill stem 8, again jointed rod of string 5 is separated through the occupy-place drilling tool in the bottom of drilling rod 8, the number of connection that the occupy-place drilling tool is separated string 5 is equipped with according to the Site Design depth requirements, last root drilling rod connects occupy-place drilling tool plug 6, whole formation occupy-place drilling tool.
Wherein, the external diameter of occupy-place drilling tool separation string 5 and occupy-place drilling tool plug 6 is not less than the external diameter size of single drill bit.
Wherein, occupy-place drilling tool hanger 4 and occupy-place drilling tool are separated string 5 indoor designs circulation canal, and body cylindrical and the bottom of occupy-place drilling tool plug 6 all are designed with circulation canal.
Behind lower complete riser pipe 9, many wells of monotubular pedestal 7 is installed is stayed the preboring well, adopt the occupy-place drilling tool to fetch and deliver instrument 1 in the position of other every mouthful individual well and be lowered to respectively the occupy-place drilling tool, putting in place under the occupy-place drilling tool after fastening devices 2 linked to each other with many wells of monotubular pedestal 7 so that pinning occupy-place drilling tool when cementing the well; When design occupy-place drilling tool, consider many wells of monotubular pedestal 7 limited spaces, occupy-place drilling tool hanger 4 and occupy-place drilling tool can be separated string 5 and be designed to decentraction, the skew of regulating between them by drilling rod 8.
Claims (3)
1. the many wells of monotubular occupy-place drilling tool, it is characterized in that: this occupy-place drilling tool comprises fastening devices (2), occupy-place drilling tool hanger (4), the occupy-place drilling tool is separated string (5) occupy-place drilling tool plug (6), many wells of monotubular pedestal (7) and drilling rod (8), occupy-place drilling tool hanger (4) is seated on many wells of monotubular pedestal (7) through sealing ring (3), the upper fixing device for installing (2) of many wells of monotubular pedestal (7), the bottom of occupy-place drilling tool hanger (4) is through threaded connection drill stem (8), again jointed rod of string (5) is separated through the occupy-place drilling tool in the bottom of drilling rod (8), the number of connection that the occupy-place drilling tool is separated string (5) is equipped with according to the Site Design depth requirements, last root drilling rod connects occupy-place drilling tool plug (6), whole formation occupy-place drilling tool.
2. the many wells of monotubular according to claim 1 occupy-place drilling tool is characterized in that: wherein, it is big or small that the external diameter that the occupy-place drilling tool is separated string (5) and occupy-place drilling tool plug (6) is not less than the external diameter of single drill bit.
3. the many wells of monotubular according to claim 1 occupy-place drilling tool, it is characterized in that: wherein, occupy-place drilling tool hanger (4) and occupy-place drilling tool are separated string (5) indoor design circulation canal, and body cylindrical and the bottom of occupy-place drilling tool plug (6) all are designed with circulation canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617410 CN202900041U (en) | 2012-11-21 | 2012-11-21 | Occupied drilling tool for single-barrel multi-well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220617410 CN202900041U (en) | 2012-11-21 | 2012-11-21 | Occupied drilling tool for single-barrel multi-well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900041U true CN202900041U (en) | 2013-04-24 |
Family
ID=48120726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220617410 Expired - Lifetime CN202900041U (en) | 2012-11-21 | 2012-11-21 | Occupied drilling tool for single-barrel multi-well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223858A (en) * | 2016-08-31 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Symmetric form monotubular twin-well surface pipe drilling completion device and operational approach |
| CN110145275A (en) * | 2019-05-13 | 2019-08-20 | 中国石油集团渤海钻探工程有限公司 | Bore well-completing process in occupy-place drilling tool method monotubular twin-well surface layer |
-
2012
- 2012-11-21 CN CN 201220617410 patent/CN202900041U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223858A (en) * | 2016-08-31 | 2016-12-14 | 中国石油集团渤海钻探工程有限公司 | Symmetric form monotubular twin-well surface pipe drilling completion device and operational approach |
| CN110145275A (en) * | 2019-05-13 | 2019-08-20 | 中国石油集团渤海钻探工程有限公司 | Bore well-completing process in occupy-place drilling tool method monotubular twin-well surface layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xia Yong Inventor after: Chang Helin Inventor after: Sun Yunlong Inventor after: Li Zhong Inventor after: Wang Xiaoyong Inventor before: Xia Yong Inventor before: Chang Helin Inventor before: Sun Yunlong |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160929 Address after: 211600 Jinhu, Huaian province with the Thai Road, science and technology building, No. 408 Patentee after: JIANGSU JINSHI TECHNOLOGY CO.,LTD. Patentee after: CNOOC (China) Limited,Zhanjiang Branch Address before: 211600 Jinhu, Huaian province with the Thai Road, science and technology building, No. 408 Patentee before: JIANGSU JINSHI TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |