CN203547621U - Drifting tool with sidewall trimming function - Google Patents
Drifting tool with sidewall trimming function Download PDFInfo
- Publication number
- CN203547621U CN203547621U CN201320551824.9U CN201320551824U CN203547621U CN 203547621 U CN203547621 U CN 203547621U CN 201320551824 U CN201320551824 U CN 201320551824U CN 203547621 U CN203547621 U CN 203547621U
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- drifting
- sidewall
- tool
- designed
- borehole wall
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Abstract
The utility model relates to a drifting tool for oil field drilling, in particular to a drifting tool with sidewall trimming function, wherein sidewall trimming bands and trimming slices are designed on a body, a circular flow channel is designed between the sidewall trimming bands, drill rod clasps are processed on the two ends of the body, the lower end of the body is connected with a guiding shoe, and guiding shoe circulation hole is arranged in the center of the guiding shoe. The drifting tool with sidewall trimming function can trim sand bridges of open hole sections and sidewalls, can effectively trim floor layers, can enlarge well sections which form small well holes by rotating the guiding shoe, and is excellent in drifting effect. The drifting tool with sidewall trimming function overcomes the defect that existing drifting tools are poor in drifting effect.
Description
Technical field:
The utility model relates to a kind of oil field welldrilling drifting instrument, particularly a kind of drifting instrument with borehole wall grooming function.
Background technology:
In the drilling process of directional well, high angle hole, horizontal well, extended reach well and all kinds of deep-wells, impact due to the inhomogeneity of formation lithology and drilling method etc., very easily cause the irregular of borehole size, there is well radius variations serious (or becoming large or undergauge) in indivedual stratum, to next step, continue to creep into and the completion practice in later stage brings great risk, because causing reaming and be hampered, meet the event of card, such factor emerges in an endless stream, when serious, cause bury drills tool, well filling, sidetracking, even whole well to be scrapped, cause huge economic loss and bad social influence.Meanwhile, existing drifting instrument drifting weak effect, can not meet the drifting requirement of directional well, high angle hole, horizontal well, extended reach well and all kinds of deep-wells.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of drifting instrument with borehole wall grooming function, this instrument has been realized and can have been repaired the sand bridge of barefoot interval and the borehole wall, can effectively repair the bore stratum of meeting, while being hampered, can to forming the well section of slim-hole, carry out reaming by rotation guide shoe, drifting is effective.Overcome the deficiency of existing drifting instrument drifting weak effect.
Technical solution adopted in the utility model is: a kind of drifting instrument with borehole wall grooming function, comprises body; On body, be designed with borehole wall finishing band and finishing section, between borehole wall finishing band, be designed with circulatory flow, body two ends are all processed with drilling rod button, and body lower end connects guide shoe, and guide shoe center has guide shoe circulation port.
The beneficial effects of the utility model are: the utility model can be repaired the sand bridge of barefoot interval and the borehole wall, can effectively repair the bore stratum of meeting, while being hampered, can to forming the well section of slim-hole, carry out reaming by rotation guide shoe, drifting is effective.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, a kind of drifting instrument with borehole wall grooming function, comprises body 1; On body 1, be designed with borehole wall finishing and be with 3 to cut into slices 4 with finishing, the effect of cutting the undergauge borehole wall is mainly played in finishing section 4, and borehole wall finishing is with 3 can effectively repair barefoot interval, the latus rectum of assurance well; Borehole wall finishing is designed with circulatory flow 2 between being with 3, and circulatory flow 2 can guarantee the cyclic space that drilling fluid is good; Body 1 two ends are all processed with drilling rod button, and body 1 lower end connects guide shoe 5, and guide shoe 5 is mainly to running into cave-in in drifting process and the serious well of undergauge is cut, thereby are with 3 to provide and enter space for borehole wall finishing; Guide shoe 5 centers have guide shoe circulation port 6, and guide shoe circulation port 6 can guarantee the circulation canal of drilling fluid in drifting process; Guide shoe cutting teeth plays the effect of cutting the stratum that is hampered.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (1)
1. a drifting instrument with borehole wall grooming function, comprises body (1); It is characterized in that: on body (1), be designed with borehole wall finishing band (3) and finishing section (4), between borehole wall finishing band (3), be designed with circulatory flow (2), body (1) two ends are all processed with drilling rod button, body (1) lower end connects guide shoe (5), and guide shoe (5) center has guide shoe circulation port (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551824.9U CN203547621U (en) | 2013-09-05 | 2013-09-05 | Drifting tool with sidewall trimming function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551824.9U CN203547621U (en) | 2013-09-05 | 2013-09-05 | Drifting tool with sidewall trimming function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547621U true CN203547621U (en) | 2014-04-16 |
Family
ID=50465750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320551824.9U Expired - Fee Related CN203547621U (en) | 2013-09-05 | 2013-09-05 | Drifting tool with sidewall trimming function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533180A (en) * | 2018-04-24 | 2018-09-14 | 中国海洋石油集团有限公司 | A kind of drilling engineering is with boring hole-drawing device and reaming method |
-
2013
- 2013-09-05 CN CN201320551824.9U patent/CN203547621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533180A (en) * | 2018-04-24 | 2018-09-14 | 中国海洋石油集团有限公司 | A kind of drilling engineering is with boring hole-drawing device and reaming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |