CN202157760U - Drilling tool combination for reducing sliding guide drilling viscous resistance - Google Patents
Drilling tool combination for reducing sliding guide drilling viscous resistance Download PDFInfo
- Publication number
- CN202157760U CN202157760U CN2011202723100U CN201120272310U CN202157760U CN 202157760 U CN202157760 U CN 202157760U CN 2011202723100 U CN2011202723100 U CN 2011202723100U CN 201120272310 U CN201120272310 U CN 201120272310U CN 202157760 U CN202157760 U CN 202157760U
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- drill collar
- drilling
- drilling tool
- model
- tool combination
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- 238000005553 drilling Methods 0.000 title abstract description 11
- 239000003292 glue Substances 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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Abstract
The utility model discloses a reduce sliding direction and creep into drilling tool assembly who glues and hinder, including drill collar, centralizer, the drill collar is the spiral drill collar, and the number of drill collar is 7. The utility model has the advantages of the drilling tool combination is simplified, and quantity reduces, the external diameter reduces, and the at utmost has reduced the contact of drilling tool combination with the wall of a well, has reduced the probability that glues and hinder to reach the sliding guide and creep into smoothly.
Description
Technical field
The utility model relates to a kind of when being applicable to the probing of oil, natural gas in the screw rod slide-and-guide drilling process, can reduce the BHA that slide-and-guide creeps into sticking resistance.
Background technology
Long by 8, the long 9 target zone well depths in Ji's plateau oil field are about 2800 meters, and TRAJECTORY CONTROL segment length goes out Luo He and also has 1500 meters well sections, and hole deviation, orientation Changing Pattern are not obvious, need the screw rod slide-and-guide to creep into adjustment often, could satisfy the track needs.The bottomhole assembly that used before 2010 is conventional four-in-one drilling tool; Promptly 83/4 〞 well adopts 83/4 〞 PDC+172mmDC (1.5-2.5 rice)+210-213mm stabilizer+11,6 5/8 a 〞 drill collar+5 〞 DP; Realize that through fine setting at any time two reach brill of completion, drilling period is about 6 days.
The subject matter that existing BHA exists is: though adjust through the track thinking of " owing displacement hits in advance "; Reduce maximum hole deviation; Cleaning in advance; In time add implementing of technical measures such as sliding agent, can realize smoothly boring for one time with the intrinsic displacement well for 450 meters, still have bottom adjustment pressure but displacement surpasses 500 meters well.After particularly well depth surpassed 2000 meters, sticking resistance was serious during slip.Because sticking resistance seriously causes a large amount of poor efficiency constructions of drilling team, part even the compelled wheel adjustment of growing permanent teeth that pulls out of hole cause drilling period to prolong 2-3 days.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of BHA that slide-and-guide creeps into sticking resistance that reduces, the sticking resistance problem when creeping in order to solve slide-and-guide.
The utility model is realized through adopting following technical proposals:
A kind of slide-and-guide that reduces creeps into the sticking BHA that hinders, and comprises drill collar, centralizer, and it is characterized in that: said drill collar is a grooved drill collar, and the number of drill collar is 7.
The external diameter of said centralizer is 208-210mm.
The model of described drill collar is 6 1/4 〞 drill collars.
Compared with prior art, the beneficial effect of the utility model shows:
The drill collar that the utility model adopts is that original common drill collar is replaced by grooved drill collar; Promptly make a contact into by face contact, and the number of drill collar becomes 7 by original 11, the external diameter of centralizer changes 208-210mm into by original 210-212mm; The drill collar model changes 6 1/4 〞 drill collars into by 6 5/8 original 〞 drill collars; Accomplished farthest to make the contact area between the BHA and the borehole wall, thereby reduced the probability of sticking resistance, to reach carrying out smoothly that slide-and-guide creeps into.
Description of drawings
To combine the Figure of description and the specific embodiment that the utility model is done further detailed description below, wherein:
Fig. 1 is the structural representation of the utility model
Mark among the figure: 1, grooved drill collar, 2, internal thread, 3, external screw thread.
The specific embodiment
Embodiment 1
The utility model patent discloses one and has prevented that slide-and-guide from creeping into a kind of technology of sticking resistance, makes drill collar in the BHA into grooved drill collar, makes a contact into by the face contact, reduces frictional resistance.
Embodiment 2
On the basis of embodiment 1, the choosing property during for the solution slide-and-guide is reduced to 7 with 11 original drill collars, reduces frictional resistance.
Embodiment 3
The centralizer external diameter is gone up in the four-in-one drilling tool combination made into 208mm ~ 210mm, reduce frictional resistance by 210mm ~ 212mm.
Embodiment 4
On the basis of embodiment 1,2, change 6 5/8 original 〞 drill collars into 6 1/4 〞 drill collars, reduce contact area, reduce frictional resistance.
The utility model patent is not limited to the foregoing description, according to the description of the foregoing description, can also in the directional well that other similar slide-and-guide creeps into, promote the use of, but these changes all should fall within the protection domain of the utility model claim.
Claims (3)
1. one kind is reduced the BHA that slide-and-guide creeps into sticking resistance, comprises drill collar, centralizer, and it is characterized in that: said drill collar is a grooved drill collar, and the number of drill collar is 7.
2. a kind of BHA that slide-and-guide creeps into sticking resistance that reduces according to claim 1, it is characterized in that: the external diameter of said centralizer is 208-210mm.
3. a kind of BHA that slide-and-guide creeps into sticking resistance that reduces according to claim 1, it is characterized in that: the model of described drill collar is 6 1/4 〞 drill collars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202723100U CN202157760U (en) | 2011-07-29 | 2011-07-29 | Drilling tool combination for reducing sliding guide drilling viscous resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202723100U CN202157760U (en) | 2011-07-29 | 2011-07-29 | Drilling tool combination for reducing sliding guide drilling viscous resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157760U true CN202157760U (en) | 2012-03-07 |
Family
ID=45765401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202723100U Expired - Fee Related CN202157760U (en) | 2011-07-29 | 2011-07-29 | Drilling tool combination for reducing sliding guide drilling viscous resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513043A (en) * | 2019-07-15 | 2019-11-29 | 中国地质大学（武汉） | A kind of vertical drilling process straightening control method based on automatic guide drilling tool |
-
2011
- 2011-07-29 CN CN2011202723100U patent/CN202157760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513043A (en) * | 2019-07-15 | 2019-11-29 | 中国地质大学（武汉） | A kind of vertical drilling process straightening control method based on automatic guide drilling tool |
| CN110513043B (en) * | 2019-07-15 | 2020-11-27 | 中国地质大学（武汉） | Vertical drilling process deviation correction control method based on automatic guiding drilling tool |
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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: 20120307 Termination date: 20180729 |