CN205135418U - Drifting of rectifying combination drilling tool - Google Patents
Drifting of rectifying combination drilling tool Download PDFInfo
- Publication number
- CN205135418U CN205135418U CN201520853509.0U CN201520853509U CN205135418U CN 205135418 U CN205135418 U CN 205135418U CN 201520853509 U CN201520853509 U CN 201520853509U CN 205135418 U CN205135418 U CN 205135418U
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- fixedly connected
- dimensionally stable
- stable device
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- drifting
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Abstract
(B, ) the utility model relates to a drifting tool technical field in field with "nine squares" is a drifting of rectifying combination drilling tool, and it includes the drill collar with top drilling rod fixed connection, and drill collar lower extreme fixed connection has the first size stabilizer of owing, and the first size stabilizer lower extreme fixed connection that owes there is the non magnetic drill collar, and non magnetic drill collar lower extreme fixed connection has the re -drill bit, and re -drill bit lower extreme fixed connection has the second to owe the size stabilizer, and size stabilizer lower extreme fixed connection is owed to the second has the awl of drawing. The utility model discloses addding the stabilizer at the re -drill bit front end and guiding the re -drill bit to carry out the drifting operation along a former brill eye direction with drawing to bore, prevent that the re -drill bit receives inflexible influence of gravity and drilling tool to pierce the below stratum, the production of having stopped divergent eye has safety, efficient characteristics. (B, )
Description
Technical field
the utility model relates to the drifting power tool technical field in field with "nine squares", is a kind of correction drifting way-type drilling unit.
Background technology
at present in the orientation construction of the drilling wells such as oil, generally need to adopt drifting drilling assembly to carry out drifting operation to the drilling well completing the drilling depth that spuds in, to provide the stable well of uniform specification for the operation such as exploitation in later stage.The general drifting drilling assembly as shown in Figure 1 that uses carries out drifting at present, namely be fixedly connected with in turn from top to bottom by drill collar 2, stabilizer 9 and re-drill bit 5 and form, but due to the deadweight of drilling tool or the reason such as stratum is soft, the drilling assembly now used very easily produces discrimination eye in drifting process, the path changing former hoistway is crept into, change once drilling direction and just need to note the drilling well again again of grey well filling, very large waste is all caused to time and resource.Therefore, existing drifting drilling assembly has the following disadvantages in actual use: the problem that error rate is high, efficiency of construction is lower.
Summary of the invention
the utility model provides a kind of correction drifting way-type drilling unit, and overcome the deficiency of above-mentioned prior art, it effectively can solve the problem that error rate is high, efficiency of construction is low that existing drifting drilling assembly exists.
the technical solution of the utility model is realized by following measures: a kind of correction drifting way-type drilling unit, comprise the drill collar be fixedly connected with top drilling rod, drill collar lower end is fixedly connected with first and owes dimensionally stable device, first owes dimensionally stable device lower end is fixedly connected with non magnetic drill collar, non magnetic drill collar lower end is fixedly connected with re-drill bit, re-drill bit lower end is fixedly connected with second and owes dimensionally stable device, and second owes dimensionally stable device lower end is fixedly connected with leading cone.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned drill collar, the first deficient dimensionally stable device, non magnetic drill collar, re-drill bit, second are owed dimensionally stable device and can be coaxially connected with leading cone.
the above-mentioned second work external diameter owing dimensionally stable device can be less than the work external diameter that first owes dimensionally stable device.
above-mentioned drill collar lower end is fixedly connected with first by screw thread and owes dimensionally stable device, first owes dimensionally stable device lower end is fixedly connected with non magnetic drill collar by screw thread, non magnetic drill collar lower end is fixedly connected with re-drill bit by screw thread, re-drill bit lower end is fixedly connected with second by screw thread and owes dimensionally stable device, and second owes dimensionally stable device lower end is fixedly connected with leading cone by screw thread.
the utility model reasonable and compact in structure, easy to use, it sets up stabilizer in re-drill bit front end and leading cone carries out drifting operation to guide re-drill bit along former jewel hole direction, effectively prevents the generation of discrimination eye, has safety, efficiently feature.
Accompanying drawing explanation
accompanying drawing 1 is the structural representation of drifting drilling assembly in prior art.
accompanying drawing 2 is structural representation of the present utility model.
coding in accompanying drawing is respectively: 1 is drilling rod, and 2 is drill collar, and 3 is the first deficient dimensionally stable device, and 4 is non magnetic drill collar, and 5 is re-drill bit, and 6 is the second deficient dimensionally stable device, and 7 is leading cone, and 8 is jewel hole, and 9 is stabilizer.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 2, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in Figure 2, this correction drifting way-type drilling unit comprises the drill collar 2 be fixedly connected with top drilling rod 1, drill collar 2 lower end is fixedly connected with first and owes dimensionally stable device 3, first owes dimensionally stable device 3 lower end is fixedly connected with non magnetic drill collar 4, non magnetic drill collar 4 lower end is fixedly connected with re-drill bit 5, re-drill bit 5 lower end is fixedly connected with the second deficient deficient dimensionally stable device 6 lower end of dimensionally stable device 6, second and is fixedly connected with leading cone 7.In drifting reaming process, owe dimensionally stable device 6 in the lower support of re-drill bit 5, play the effect preventing from re-drill bit 5 to be affected by gravity stratum downwards creeping into; Leading cone 7 top end face of front end is round and smooth arc, plays and guides re-drill bit 5 along the progressive effect in former well side; The utility model can prevent re-drill bit 5 from forming new discrimination eye in slant well section by the impact of gravity and drilling tool rigidity, thus impels drifting drilling tool to creep into along former well direction, plays correction effect.
according to actual needs, above-mentioned correction drifting way-type drilling unit can be made further optimization and/or improvements:
as shown in Figure 2, the deficient dimensionally stable device 3 of drill collar 2, first, non magnetic drill collar 4, re-drill bit 5, second are owed dimensionally stable device 6 and are coaxially connected with leading cone 7.Each element coaxial of correction drifting way-type drilling unit connects, and can ensure stability of the present utility model, avoid the skew of dilling angle further.
as shown in Figure 2, the second work external diameter owing dimensionally stable device 6 is less than the work external diameter that first owes dimensionally stable device 3.Ensure that correction drifting way-type drilling unit can be transferred smoothly and creep in jewel hole 8.
as shown in Figure 2, drill collar 2 lower end is fixedly connected with first by screw thread and owes dimensionally stable device 3, first owes dimensionally stable device 3 lower end is fixedly connected with non magnetic drill collar 4 by screw thread, non magnetic drill collar 4 lower end is fixedly connected with re-drill bit 5 by screw thread, re-drill bit 5 lower end is fixedly connected with the second deficient deficient dimensionally stable device 6 lower end of dimensionally stable device 6, second by screw thread and is fixedly connected with leading cone 7 by screw thread.Adopt engagement thread each parts connected between the utility model have structure simple, connect reliable, simple load and unload advantage.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (5)
1. a correction drifting way-type drilling unit, it is characterized in that comprising the drill collar be fixedly connected with top drilling rod, drill collar lower end is fixedly connected with first and owes dimensionally stable device, first owes dimensionally stable device lower end is fixedly connected with non magnetic drill collar, non magnetic drill collar lower end is fixedly connected with re-drill bit, re-drill bit lower end is fixedly connected with second and owes dimensionally stable device, and second owes dimensionally stable device lower end is fixedly connected with leading cone.
2. correction drifting way-type drilling unit according to claim 1, is characterized in that drill collar, the first deficient dimensionally stable device, non magnetic drill collar, re-drill bit, second are owed dimensionally stable device and be coaxially connected with leading cone.
3. correction drifting way-type drilling unit according to claim 1 and 2, is characterized in that the second work external diameter owing dimensionally stable device is less than the work external diameter that first owes dimensionally stable device.
4. correction drifting way-type drilling unit according to claim 1 and 2, it is characterized in that drill collar lower end is fixedly connected with first by screw thread and owes dimensionally stable device, first owes dimensionally stable device lower end is fixedly connected with non magnetic drill collar by screw thread, non magnetic drill collar lower end is fixedly connected with re-drill bit by screw thread, re-drill bit lower end is fixedly connected with second by screw thread and owes dimensionally stable device, and second owes dimensionally stable device lower end is fixedly connected with leading cone by screw thread.
5. correction drifting way-type drilling unit according to claim 3, it is characterized in that drill collar lower end is fixedly connected with first by screw thread and owes dimensionally stable device, first owes dimensionally stable device lower end is fixedly connected with non magnetic drill collar by screw thread, non magnetic drill collar lower end is fixedly connected with re-drill bit by screw thread, re-drill bit lower end is fixedly connected with second by screw thread and owes dimensionally stable device, and second owes dimensionally stable device lower end is fixedly connected with leading cone by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853509.0U CN205135418U (en) | 2015-10-30 | 2015-10-30 | Drifting of rectifying combination drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853509.0U CN205135418U (en) | 2015-10-30 | 2015-10-30 | Drifting of rectifying combination drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135418U true CN205135418U (en) | 2016-04-06 |
Family
ID=55621225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520853509.0U Expired - Fee Related CN205135418U (en) | 2015-10-30 | 2015-10-30 | Drifting of rectifying combination drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720087A (en) * | 2020-07-28 | 2020-09-29 | 中国石油天然气集团有限公司 | Drifting method for mudstone blockage at deviated well section and drifting drilling tool combination |
-
2015
- 2015-10-30 CN CN201520853509.0U patent/CN205135418U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720087A (en) * | 2020-07-28 | 2020-09-29 | 中国石油天然气集团有限公司 | Drifting method for mudstone blockage at deviated well section and drifting drilling tool combination |
| CN111720087B (en) * | 2020-07-28 | 2024-05-31 | 中国石油天然气集团有限公司 | Well dredging method and well dredging drilling tool combination for inclined well section mudstone blocking |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20201030 |