CN202659183U - Multifunctional downhole positioning device for oil drilling and production - Google Patents
Multifunctional downhole positioning device for oil drilling and production Download PDFInfo
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- CN202659183U CN202659183U CN 201220271809 CN201220271809U CN202659183U CN 202659183 U CN202659183 U CN 202659183U CN 201220271809 CN201220271809 CN 201220271809 CN 201220271809 U CN201220271809 U CN 201220271809U CN 202659183 U CN202659183 U CN 202659183U
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- sleeve pipe
- main sleeve
- location
- plane
- positioning device
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Abstract
The utility model discloses a multifunctional downhole positioning device for oil drilling and production. The multifunctional downhole positioning device is characterized by comprising a main sleeve tube, wherein an expansion tube is arranged in the main sleeve tube, and the expansion tube is fixedly connected with the main sleeve tube. The multifunctional downhole positioning device has the advantages of being capable of achieving permanent positioning, simple in structure, convenient to use, firm in structure, and capable of meeting various high-strength construction requirements, guaranteeing smooth running of production, positioning downhole tools quickly, and enabling users to a plurality of multilateral wells can be drilled on the same main sleeve tube.
Description
Technical field
The utility model relates to a kind of petroleum drilling and mining device, specifically, relates to the multi-functional down-hole positioning device of a kind of petroleum drilling and mining.
Background technology
At present, petroleum industry is in drillng operation, and for guaranteeing the construction precision of later on all kinds of underground work of oil well of completion, the general method that adopts is that the casing string in the certain depth scope is installed a casing nipple, as the reference mark of the down-hole degree of depth.Although the method can accurately provide the foundation of down-hole depth calculation, function singleness can only be determined the degree of depth and can not determine the orientation, and is difficult to be used in conjunction with instrument.
Multi-lateral well technology is the technology that gets out plural horizontal hole or oriented hole in a main borehole.Its technology will guarantee the reliability of positioning of multilateral well construction tool and have the recovery ability, after multilateral well is finished, is the construction operations such as the maintenance of Zhi Jing from now on and well workover, and multilateral well also must possess " Zhi Jingchong advances " function.
The location, down-hole is the key problem in technology of multilateral well, and positioner need to have enough axial load resistants, Chinese People's Anti-Japanese Military and Political College's moment of torsion and high pressure sealing ability.Specialty is because technical limitations both at home and abroad, employing slip-type anchor tool adds packer or simply grows the distance tieback location from bottom to top with sleeve pipe in old well sidetracking Multilateral Wells, these instruments are because the inherent shortcoming of itself causes many disadvantages, main run through casing size significantly reduces after the completion, brings a lot of problems for follow-up oil recovery, well workover and oil formation improvement etc.External specialized company must just can carry out subsequent job with the special instrument of the said firm after finishing multilateral well, construction cost is large.Locating unreliable is another shortcoming of above-mentioned instrument, poor-performing on axial load resistant, Chinese People's Anti-Japanese Military and Political College's moment of torsion and high pressure sealing ability, slips has the hard defects infringement to sleeve pipe, long distance sleeve tieback can't bear larger load and moment of torsion, cause directed inaccurate, under prop up well tool and be difficult for centering position and orientation, make Zhi Jing " the selective reentry " become a large difficult point of beating the multiple-limb technology.Moreover, the use of above-mentioned instrument, main run through casing size significantly reduces after the completion, therefore, should not make a call to the Multilateral Wells more than 3 in small size master sleeve pipe in a main sleeve pipe.But the domestic production sleeve pipe overwhelming majority is the small size sleeve pipe, causes the domestic difficulty that digs a branch well higher, and success rate is less, has limited application and the popularization of domestic multi-lateral well technology.
The utility model content
In order to address the above problem, the utility model provides a kind of petroleum drilling and mining multi-functional down-hole positioning device, has solved the problem to the permanent location of Zhi Jing, has realized being lowered to the reliable location of Multilateral Wells instrument; And the use of expansion tube makes the internal diameter of main sleeve pipe maximum, guarantees that the later operations such as oil recovery, well workover and oil formation improvement can normally carry out; Can also get a plurality of Multilateral Wells in same main sleeve pipe, a well number is unrestricted; Can easily determine down well placement, and passing of downhole tool can be provided.
The technical scheme that the utility model adopts is:
The multi-functional down-hole positioning device of a kind of petroleum drilling and mining comprises main sleeve pipe, is provided with expansion tube in the described main sleeve pipe, and described expansion tube is fixedly connected with main sleeve pipe.
Be provided with expansion tube in the main sleeve pipe, expansion tube is fixedly connected with main sleeve pipe, and expansion tube is suppressed by pressure device and made its expansion, distortion, push main internal surface of sleeve pipe, be attached to firmly on the main internal surface of sleeve pipe, after finishing when expanding, the down-hole is suppressed instrument and is proposed in main sleeve pipe with drilling rod.
Preferably, the top of described expansion tube is provided with the inclined-plane, location.
Further, the angle of inclination on inclined-plane, described location is 35 °～40 °.
Further, the inwall of described main sleeve pipe is provided with the axial notch for the location downhole tool, axial notch is positioned at bottom, inclined plane one side on inclined-plane, location, when downhole tool need to be judged direction, can utilize this axial notch to judge direction, the inclined-plane, location can make downhole tool enter in axial notch along inclined-plane, location convenient card when contact.
When arriving the down-hole under the aboveground instrument, utilize magnetic localizer or mechanical positioner to survey the position of this device, obtain relative position and the direction of instrument.
The utility model expansion tube has formed the permanent location of Zhi Jing in the down-hole; And expansion tube can bear great the pressure of the drill and moment of torsion in the down-hole, satisfy the construction requirement such as window, sidetracking, plain grinding, cover mill fully, guarantee that the later operations such as oil recovery, well workover and oil formation improvement can normally carry out, location and locking device that promising drilling oblique device and well workover whipstock seat are hung are set on the expansion tube, realized the reliable location to drilling oblique device and a well reentry whipstock, the use of expansion tube makes the internal diameter of main sleeve pipe maximum, and can in same main sleeve pipe, get a plurality of Multilateral Wells, a well number is unrestricted.
The utility model is taked above technical scheme, have the following advantages: can realize permanent location, simple in structure, easy to use, structure firmly can bear various high-intensity construction requirements, has guaranteed carrying out smoothly of production, can fast to orientation tool, can in same pipe, get individual minute well.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structural representation of a kind of underground positioning device used in oil drilling during the utility model is implemented.
Among the figure: 1-master's sleeve pipe; The 2-expansion tube; 3-suppresses instrument; 4-locates the inclined-plane; The 5-axial notch.
The specific embodiment
Below preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Embodiment
As shown in Figure 1, the multi-functional down-hole positioning device of a kind of petroleum drilling and mining, comprise main sleeve pipe 1, be provided with expansion tube 2 in the described main sleeve pipe 1, described expansion tube 2 is fixedly connected with main sleeve pipe 1, described expansion tube 2 is suppressed by pressure device and is made its expansion, distortion, push main sleeve pipe 1 inwall, be attached to firmly on main sleeve pipe 1 inwall, after expand finishing, the down-hole suppress instrument 3 with drilling rod from main sleeve pipe 1 interior proposition, the use of expansion tube 2 makes the internal diameter of main sleeve pipe 1 maximum, and can in same main sleeve pipe 1, get a plurality of Multilateral Wells, a well number is unrestricted.
The top of described expansion tube 2 is provided with inclined-plane 4, location, has realized boring the reliable location of completion whipstock and well workover, a well reentry whipstock; The angle of inclination on inclined-plane, described location 4 is 35 °～40 °.
The inwall of described main sleeve pipe 1 is provided with the axial notch 5 for the location downhole tool, axial notch 5 is positioned at bottom, inclined plane one side on inclined-plane 4, location, when downhole tool need to be judged direction, can utilize this axial notch to judge direction, downhole tool can snap onto 5 li of axial notches easily along the inclined-plane when inclined-plane 4, contact location.
This utility model not only is used for brill, the completion practice of new well multilateral well, and has thoroughly solved many difficult problems of domestic and international small size sleeve pipe and old well sidetracking Multilateral Wells.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. multi-functional down-hole positioning device of petroleum drilling and mining, it is characterized in that: comprise main sleeve pipe, be provided with expansion tube in the described main sleeve pipe, described expansion tube is fixedly connected with main sleeve pipe;
The top of described expansion tube is provided with the inclined-plane, location;
The angle of inclination on inclined-plane, described location is 35 °～40 °.
2. down-hole positioning device according to claim 1, it is characterized in that: the inwall of described main sleeve pipe is provided with the axial notch for the location downhole tool, axial notch is positioned at bottom, inclined plane one side on inclined-plane, location, when downhole tool need to be judged direction, can utilize this axial notch to judge direction, the inclined-plane, location can make downhole tool enter in axial notch along inclined-plane, location convenient card when contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271809 CN202659183U (en) | 2012-06-11 | 2012-06-11 | Multifunctional downhole positioning device for oil drilling and production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220271809 CN202659183U (en) | 2012-06-11 | 2012-06-11 | Multifunctional downhole positioning device for oil drilling and production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659183U true CN202659183U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220271809 Expired - Fee Related CN202659183U (en) | 2012-06-11 | 2012-06-11 | Multifunctional downhole positioning device for oil drilling and production |
Country Status (1)
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| CN (1) | CN202659183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632171A (en) * | 2015-02-05 | 2015-05-20 | 中国石油天然气集团公司 | Branching well staged fracturing well completion underground complete equipment and method |
-
2012
- 2012-06-11 CN CN 201220271809 patent/CN202659183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632171A (en) * | 2015-02-05 | 2015-05-20 | 中国石油天然气集团公司 | Branching well staged fracturing well completion underground complete equipment and method |
| CN104632171B (en) * | 2015-02-05 | 2017-10-17 | 中国石油天然气集团公司 | Complete set of equipments and method under Multilateral Wells staged fracturing completion interval of well |
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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: 20130109 Termination date: 20130611 |