CN204457433U - Anti-inclination composite drilling tool - Google Patents
Anti-inclination composite drilling tool Download PDFInfo
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- CN204457433U CN204457433U CN201420634407.5U CN201420634407U CN204457433U CN 204457433 U CN204457433 U CN 204457433U CN 201420634407 U CN201420634407 U CN 201420634407U CN 204457433 U CN204457433 U CN 204457433U
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- 238000005553 drilling Methods 0.000 title claims abstract description 111
- 239000002131 composite material Substances 0.000 title abstract description 3
- 239000003381 stabilizer Substances 0.000 claims abstract description 139
- 210000003205 muscle Anatomy 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 7
- 239000011435 rock Substances 0.000 description 5
- 230000035515 penetration Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a prevent compound drilling tool to one side should prevent compound drilling tool to one side include: the drill bit, the guide power drilling tool with the bistable device and the lower drill collar; wherein the steerable power drill with bi-stabilizers comprises: the device comprises a first stabilizer, a screw and a second stabilizer; the first stabilizer is connected with the drill bit, the first end of the screw rod is connected with the first stabilizer, the second stabilizer is connected with the second end of the screw rod, and the first end of the lower drill collar is connected with the second stabilizer. The utility model discloses prevent that oblique composite drilling tool surely inclines and prevent that oblique effect is better to improve well drilling efficiency of construction and practice thrift manufacturing cost.
Description
Technical field
The utility model relates to field of mechanical technique, particularly relates to a kind of anti-oblique combination drill tool.
Background technology
In the drilling construction of the Oil/gas Well of oil gas field, some well may be positioned at High-Steep Conformation stratum, and wherein, stratigraphic dip is comparatively large herein, and therefore, wellbore quality controls difficulty can be larger.
In prior art, usual employing routine " single two " pendulum assembly carries out that straight well is anti-oblique to creep into, Fig. 1 is the structural representation of conventional " single two " pendulum assembly, as shown in Figure 1, described " single two " pendulum assembly comprises: drill bit 1A, two bottom drill collar 2A, stabilizer 3A, a top drill collar 4A and drilling rod 5A.
Anti-oblique limited in one's ability due to described " single two " pendulum assembly, usually take light pressure to hang up and beat and directed well straightening measure when there is hole deviation, but the efficiency of breaking rock of drill bit is low, have a strong impact on rate of penetration and construction speed, cause the waste of a large amount of human and material resources and financial resources.
Utility model content
The utility model provides a kind of anti-oblique combination drill tool, and the hold angle of described anti-oblique combination drill tool and anti-oblique effect very well, thus improve wellbore construction efficiency and save production cost.
The utility model provides a kind of anti-oblique combination drill tool, comprising: the guiding power drilling tool of drill bit, band bistable device and bottom drill collar; Wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer; Wherein, described first stabilizer is connected with described drill bit, and the first end of described screw rod is connected with described first stabilizer, and described second stabilizer is connected with the second end of described screw rod, and the first end of described bottom drill collar is connected with described second stabilizer.
Alternatively, described first stabilizer is the asymmetric straight muscle shapes of three wings, and described second stabilizer is three wings symmetric helix shape.
Alternatively, the bent angle scope of described guiding power drilling tool for being more than or equal to 0.75 degree, and is less than or equal to 1.25 degree; The diameter range of described first stabilizer for being more than or equal to 206 millimeters, and is less than or equal to 212 millimeters.
Alternatively, the guiding power drilling tool of described band bistable device is low-speed big power drilling tool, and described screw rod is low-speed big screw rod.
Alternatively, described anti-oblique combination drill tool, also comprises: tri-stabilizer, and described tri-stabilizer is connected with the second end of described bottom drill collar.
Alternatively, described tri-stabilizer is long three wings symmetric helix stabilizer.
Alternatively, described anti-oblique combination drill tool, also comprises: top drill collar and the first drilling rod, and wherein, the first end of described top drill collar is connected with described tri-stabilizer, and described first drilling rod is connected with the second end of described top drill collar.
Alternatively, the quantity of described bottom drill collar is 2.
Alternatively, described anti-oblique combination drill tool, also comprise: flex-stem, drilling jar, heavy weight drill pipe and the second drilling rod, wherein, the first end of described flex-stem is connected with the second end of described bottom drill collar, described drilling jar is connected with the second end of described flex-stem, and the first end of described heavy weight drill pipe is connected with described drilling jar, and described second drilling rod is connected with the second end of described heavy weight drill pipe.
Anti-oblique combination drill tool of the present utility model, comprising: the guiding power drilling tool of drill bit, band bistable device and bottom drill collar; Wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer; Wherein, described first stabilizer is connected with described drill bit, the first end of described screw rod is connected with described first stabilizer, described second stabilizer is connected with the second end of described screw rod, the first end of described bottom drill collar is connected with described second stabilizer, also namely effectively can be increased the rigidity of drilling assembly by employing two stabilizer combinations, hold angle and anti-oblique effect better, thus improve wellbore construction efficiency and save production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of conventional " single two " pendulum assembly;
Fig. 2 is the structural representation of the anti-oblique combination drill tool embodiment one of the utility model;
Fig. 3 is the structural representation of the anti-oblique combination drill tool embodiment two of the utility model;
Fig. 4 is the anti-oblique effect contrast figure one of anti-oblique combination drill tool of the present utility model and conventional drilling tool;
Fig. 5 is the anti-oblique effect contrast figure two of anti-oblique combination drill tool of the present utility model and conventional drilling tool.
Description of reference numerals:
1A: the drill bit of " single two " pendulum assembly;
2A: the bottom drill collar of " single two " pendulum assembly;
3A: the stabilizer of " single two " pendulum assembly;
4A: the top drill collar of " single two " pendulum assembly;
5A: the drilling rod of " single two " pendulum assembly;
1: drill bit;
2: guiding power drilling tool;
21: the first stabilizers;
22: screw rod;
23: the second stabilizers;
3: bottom drill collar;
4: the tri-stabilizers;
5: top drill collar;
6: the first drilling rods.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Existing conventional single bend PDM combination drill tool (without stabilizer or near-bit stabilizer) although anti-oblique ability stronger than conventional " single two " pendulum assembly, but there is hold angle effect to increase and the defect of reduction with hole angle, shown by research application practice: when hole deviation is more than 5 degree, single bend PDM combination drill tool does not possess hold angle ability.Alternatively, when adopting " single two " combination drill tool of single bend PDM drilling tool to combine, because hole deviation increases fast, cause hold angle control section shorter, need frequent enforcement well straightening operation, cause rate of penetration to reduce, affect drilling period.
Fig. 2 is the structural representation of the anti-oblique combination drill tool embodiment one of the utility model, and as shown in Figure 2, the anti-oblique combination drill tool of the present embodiment comprises: the guiding power drilling tool 2 of drill bit 1, band bistable device and bottom drill collar 3; Wherein, the guiding power drilling tool 2 of described band bistable device comprises: the first stabilizer 21, screw rod 22 and the second stabilizer 23; Wherein, described first stabilizer 21 is connected with described drill bit 1, the first end of described screw rod 22 is connected with described first stabilizer 21, and described second stabilizer 23 is connected with the second end of described screw rod 22, and the first end of described bottom drill collar 3 is connected with described second stabilizer 23.
In the present embodiment, the lowermost end of described anti-oblique combination drill tool is drill bit, and alternatively, described drill bit can be rock bit or composite polycrystal-diamond (Polycrystalline Diamond Compact bit is called for short PDC) drill bit; Due to compared with rock bit, PDC drill bit adopts the low the pressure of the drill of high rotating speed to be more conducive to anti-oblique creeping into, and preferably, selects the PDC drill bit of longer gauge teeth, band back reaming function under formation properties enabled condition as far as possible.Further, adopt the straight power drilling tool not with stabilizer in the guiding power drilling tool replacement prior art of band bistable device, the high steep stratum well straightening effect of effective raising, wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer; The bent angle of existing straight power drilling tool is 0.75 degree, alternatively, the bent angle scope of described guiding power drilling tool is for being more than or equal to 0.75 degree, and be less than or equal to 1.25 degree, effectively can improve high steep stratum well straightening effect, alternatively, the diameter range of described first stabilizer is for being more than or equal to 206 millimeters, and be less than or equal to 212 millimeters, to reduce the deflecting ability of drilling tool; Alternatively, the guiding power drilling tool of described band bistable device is low-speed big power drilling tool, adopt 5 middling speed screw rods of 7 or 9 low-speed big screw rods replacement routines, destroy with the offset distance formation mechanical shock that especially coal seam is caused reducing power drilling tool and drill bit.Alternatively, described first stabilizer is the asymmetric straight muscle shapes of three wings, and namely screw rod height edge direction is wide guiding gutter, is conducive to anti-sticking, and the low limit of screw rod adopts wide stable block to support the borehole wall, effectively can improve face stabilizer during directed well straightening, guarantee well straightening effect.Alternatively, described second stabilizer is three wings symmetric helix shape, wherein, described first stabilizer is connected with described drill bit, the first end of described screw rod is connected with described first stabilizer, and described second stabilizer is connected with the second end of described screw rod, and the first end of described bottom drill collar is connected with described second stabilizer, alternatively, described bottom drill collar is two drill collars.Alternatively, the conventional screw size of φ 215.9mm well is optimized for φ 165mm by φ 172mm, returns bits space to increase lower drilling tool, improve the safety of overall drilling tool, guarantee coal measure strata safety drilling.Alternatively, the stabilizer diameter range being applicable to φ 241mm well for being more than or equal to 235 millimeters, and can be less than or equal to 238 millimeters, to reduce the deflecting ability of drilling tool.
Alternatively, the anti-oblique combination drill tool of the present embodiment also can adopt hollow rotor to replace existing solid rotor, to improve shaft bottom cooling-down effect, provides and takes rock cleaning efficiency, can available protecting drill bit, can improve drilling speed simultaneously.
The anti-oblique combination drill tool of the present embodiment, comprising: the guiding power drilling tool of drill bit, band bistable device and bottom drill collar; Wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer; Wherein, described first stabilizer is connected with described drill bit, the first end of described screw rod is connected with described first stabilizer, described second stabilizer is connected with the second end of described screw rod, the first end of described bottom drill collar is connected with described second stabilizer, also namely effectively can be increased the rigidity of drilling assembly by employing two stabilizer combinations, hold angle and anti-oblique effect better, thus improve wellbore construction efficiency and save production cost.
Fig. 3 is the structural representation of the anti-oblique combination drill tool embodiment two of the utility model, and as shown in Figure 3, the present embodiment is on the basis of Fig. 2 embodiment, i.e. anti-oblique combination drill tool, comprising: the guiding power drilling tool 2 of drill bit 1, band bistable device and bottom drill collar 3; Wherein, the guiding power drilling tool 2 of described band bistable device comprises: the first stabilizer 21, screw rod 22 and the second stabilizer 23; Wherein, described first stabilizer 21 is connected with described drill bit 1, the first end of described screw rod 22 is connected with described first stabilizer 21, and described second stabilizer 23 is connected with the second end of described screw rod 22, and the first end of described bottom drill collar 3 is connected with described second stabilizer 23; Alternatively, the quantity of described bottom drill collar is 2, anti-oblique combination drill tool also comprises: tri-stabilizer 4, top drill collar 5 and the first drilling rod 6, wherein, tri-stabilizer 4 is connected with the second end of described bottom drill collar 3, the first end of top drill collar 5 is connected with tri-stabilizer 4, and described first drilling rod 6 is connected with the second end of described top drill collar 5; Alternatively, described tri-stabilizer is long three wings symmetric helix stabilizer, effectively can increase the strong point with the borehole wall, ensure the pendulum force effect of bottom drill collar, strengthen anti-oblique effect, alternatively, the external diameter of described first stabilizer, described second stabilizer and described tri-stabilizer is that notch cuttype increases successively; Alternatively, for φ 215.9mm well, the diameter of tri-stabilizer is 214mm and length is that 600mm is to replace the short spiral stabilizer of existing 250mm.Alternatively, the dosage of described top drill collar is determined by the factor such as bite type, specified the pressure of the drill, and principle the stressed critical point of drilling tool when creeping into is controlled to locate at described top drill collar about 2/3; Alternatively, φ 215.9mm well adopts φ 159mm top drill collar, adopts φ 127mm first drilling rod.
Alternatively, the anti-oblique combination drill tool of the present embodiment adopts three stabilizer combinations, and wherein, described first stabilizer is near-bit stabilizer, alternatively, the distance of described first stabilizer distance drill bit is 0.8-1.2m, and the second stabilizer and the first stabilizer distance are 7-8m, and tri-stabilizer and the second stabilizer distance are 17-18m, research application practice shows, the combination of three stabilizers effectively can increase the rigidity of drilling assembly, reaches the object of stable direction of deflection, and namely hold angle, anti-oblique effect are best.
The anti-oblique combination drill tool of the present embodiment, comprising: drill bit, the guiding power drilling tool being with bistable device, bottom drill collar, tri-stabilizer, top drill collar and the first drilling rod, wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer, alternatively, the guiding power drilling tool of described band bistable device is low-speed big power drilling tool, described screw rod is low-speed big screw rod, described first stabilizer is the asymmetric straight muscle shapes of three wings, described second stabilizer is three wings symmetric helix shape, and described tri-stabilizer is long three wings symmetric helix stabilizer, wherein, described first stabilizer is connected with described drill bit, the first end of described screw rod is connected with described first stabilizer, described second stabilizer is connected with the second end of described screw rod, the first end of described bottom drill collar is connected with described second stabilizer, described tri-stabilizer is connected with the second end of described bottom drill collar, the first end of described top drill collar is connected with described tri-stabilizer, described first drilling rod is connected with the second end of described top drill collar, also the rigidity of drilling assembly namely effectively can be increased by employing three stabilizer combinations, hold angle and anti-oblique effect fine, thus improve wellbore construction efficiency and save production cost.
In the anti-oblique combination drill tool embodiment three of the utility model, the present embodiment is on the basis of Fig. 2 embodiment, i.e. anti-oblique combination drill tool, comprising: the guiding power drilling tool 2 of drill bit 1, band bistable device and bottom drill collar 3; Wherein, the guiding power drilling tool 2 of described band bistable device comprises: the first stabilizer 21, screw rod 22 and the second stabilizer 23; Wherein, described first stabilizer 21 is connected with described drill bit 1, the first end of described screw rod 22 is connected with described first stabilizer 21, and described second stabilizer 23 is connected with the second end of described screw rod 22, and the first end of described bottom drill collar 3 is connected with described second stabilizer 23; Alternatively, described anti-oblique combination drill tool also comprises: flex-stem, drilling jar, heavy weight drill pipe and the second drilling rod, wherein, the first end of described flex-stem is connected with the second end of described bottom drill collar, described drilling jar is connected with the second end of described flex-stem, and the first end of described heavy weight drill pipe is connected with described drilling jar, and described second drilling rod is connected with the second end of described heavy weight drill pipe, alternatively, described anti-oblique combination drill tool can be applicable to coal measure strata.Wherein, described flex-stem is used for: coordinate drilling jar to use, described drilling jar is used for the mode of hitting can being adopted at any time to solve bit freezing problem when bit freezing occurs in down-hole, purposes and the drill collar effect of described heavy weight drill pipe are similar, for applying the pressure of the drill, wherein, described heavy weight drill pipe external diameter is little, effectively can prevent the generation of lock of tool drilling on stratum of easily collapsing.
The anti-oblique combination drill tool of the present embodiment, comprising: the guiding power drilling tool of drill bit, band bistable device and bottom drill collar; Wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer; Alternatively, the guiding power drilling tool of described band bistable device is low-speed big power drilling tool, and described screw rod is low-speed big screw rod, and described first stabilizer is the asymmetric straight muscle shapes of three wings, and described second stabilizer is three wings symmetric helix shape; Wherein, described first stabilizer is connected with described drill bit, and the first end of described screw rod is connected with described first stabilizer, and described second stabilizer is connected with the second end of described screw rod, and the first end of described bottom drill collar is connected with described second stabilizer; Alternatively, described anti-oblique combination drill tool also comprises: flex-stem, drilling jar, heavy weight drill pipe and the second drilling rod, also namely effectively can be increased the rigidity of drilling assembly by employing two stabilizer combinations, hold angle and anti-oblique effect very well, thus improve wellbore construction efficiency and save production cost.
In the present embodiment, to be applied to Ke24-1Jing, the utility model is further described.As: Ke24-1Jing is a bite φ 215.9mm well development well, and anti-oblique combination drill tool comprises: φ 215.9mm drill bit, φ 210mm first stabilizer, φ 165mm single bend PDM (1.25 °), φ 212mm second stabilizer, φ 159mm bottom drill collar 2, φ 214mm tri-stabilizer, φ 159mm top drill collar 15 and φ 127mm first drilling rod.Alternatively, the anti-oblique combination drill tool that the utility model provides also can be applicable to coal measure strata, and the anti-deflection drilling tool being applicable to coal measure strata comprises: φ 215.9mm drill bit, φ 210mm first stabilizer, φ 165mm single bend PDM (0.75 °), φ 212mm second stabilizer, φ 159mm bottom drill collar * 15, flex-stem, φ 159mm drilling jar, φ 127mm heavy weight drill pipe * 9 and φ 127mm second drilling rod.
Particularly, implementation step is as follows:
1), assemble successively according to above-mentioned anti-oblique combination drill tool structure; Alternatively, if when need bore coal measure strata, then remove tri-stabilizer, adopt " 0-1 " stabilizer drilling assembly, wherein, " 0 " refers to near-bit stabilizer (i.e. the first stabilizer), and " 1 " refers to the stabilizer (i.e. the second stabilizer) on drilling tool (as screw rod an etc.) top on drill bit top;
2) turn on pump circulation behind shaft bottom is drilled into, increase discharge capacity gradually to design discharge capacity 36l/s, hole deviation and bearing data at the bottom of first measuring well, and determine to take orientation or combined drilling operation according to hole deviation situation, as hole deviation≤3 °, then start normal compound drilling, as hole deviation > 3 °, then start directed drop angle operation, wherein, general directed segment length is 3-5m, and the every 150m deviational survey of compound drilling once afterwards, and adjusting combined drilling well section and drilling parameter at any time according to hold angle situation, above operation procedure repeats;
3), under normal circumstances drilling technology parameter is as follows: PDC drill bit the pressure of the drill 60-80KN, rotary speed 45-60rpm, rock bit the pressure of the drill 140-180KN, discharge capacity 36l/s.
Fig. 4 is the anti-oblique effect contrast figure one of anti-oblique combination drill tool of the present utility model and conventional drilling tool, in figure, Line 1 and No. 4 lines represent TulufanHami oil field Ke24-1Jing and Ke2401Jing respectively and adopt the anti-oblique combination drill tool of the utility model to carry out the hole deviation curve crept into, No. 3 lines and No. 2 lines represent same block Ke24Jing and Ke241Jing respectively and adopt conventional drilling tool to carry out the hole deviation curve crept into, as shown in Figure 4, the maximum hole deviation of Ke 24 well adopting conventional drilling tool to creep into reaches 11.47 °, the maximum hole deviation of Ke 241 well reaches 16.67 °, maximum shaft bottom horizontal movement 218.8m, anti-oblique effect is poor; By contrast, the average maximum deflecting control of Ke24-1Jing and Ke2401Jing adopting the anti-oblique combination drill tool of the utility model is 4.5 °, and average steady tilted section reaches 400m, and maximum shaft bottom horizontal movement 80.78m, anti-oblique hold angle is respond well.
Fig. 5 is the anti-oblique effect contrast figure two of anti-oblique combination drill tool of the present utility model and conventional drilling tool, wherein, TulufanHami oil field Ke2401Jing adopts the anti-oblique combination drill tool of the utility model, conventional drilling tool is adopted with block Ke241Jing, as shown in Figure 5, adopt the anti-oblique combination drill tool of the utility model compared with conventional drilling tool, directed segment length shortens 84.36%, directed number of times decreases 86%, and hold angle segment length adds 1233.3%.
At present, the anti-oblique combination drill tool of the utility model has been applied to TulufanHami oil field High-Steep Conformation coal measure strata more than 5 well, anti-oblique hold angle effect highly significant: described well contrasts with the overall drill standard of block offset well, and the finishing drilling cycle shortens to 54.49d by 101d, namely shortens 46%; Average rate of penetration is increased to 4.00m/h by 2.37m/h, namely improves 68.78%, and the wellbore quality of application well is all up to standard, achieves the wellbore target of High-Steep Conformation stratum deviation prevention and fast.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. an anti-oblique combination drill tool, is characterized in that, comprising: the guiding power drilling tool of drill bit, band bistable device and bottom drill collar; Wherein, the guiding power drilling tool of described band bistable device comprises: the first stabilizer, screw rod and the second stabilizer; Wherein, described first stabilizer is connected with described drill bit, and the first end of described screw rod is connected with described first stabilizer, and described second stabilizer is connected with the second end of described screw rod, and the first end of described bottom drill collar is connected with described second stabilizer.
2. anti-oblique combination drill tool according to claim 1, is characterized in that, described first stabilizer is the asymmetric straight muscle shapes of three wings, and described second stabilizer is three wings symmetric helix shape.
3. anti-oblique combination drill tool according to claim 2, is characterized in that, the bent angle scope of described guiding power drilling tool for being more than or equal to 0.75 degree, and is less than or equal to 1.25 degree; The diameter range of described first stabilizer for being more than or equal to 206 millimeters, and is less than or equal to 212 millimeters.
4. anti-oblique combination drill tool according to claim 3, is characterized in that, the guiding power drilling tool of described band bistable device is low-speed big power drilling tool, and described screw rod is low-speed big screw rod.
5. the anti-oblique combination drill tool according to any one of claim 1-4, is characterized in that, also comprise: tri-stabilizer, described tri-stabilizer is connected with the second end of described bottom drill collar.
6. anti-oblique combination drill tool according to claim 5, is characterized in that, described tri-stabilizer is long three wings symmetric helix stabilizer.
7. anti-oblique combination drill tool according to claim 6, it is characterized in that, also comprise: top drill collar and the first drilling rod, wherein, the first end of described top drill collar is connected with described tri-stabilizer, and described first drilling rod is connected with the second end of described top drill collar.
8. anti-oblique combination drill tool according to claim 7, is characterized in that, the quantity of described bottom drill collar is 2.
9. the anti-oblique combination drill tool according to any one of claim 1-4, it is characterized in that, also comprise: flex-stem, drilling jar, heavy weight drill pipe and the second drilling rod, wherein, the first end of described flex-stem is connected with the second end of described bottom drill collar, described drilling jar is connected with the second end of described flex-stem, and the first end of described heavy weight drill pipe is connected with described drilling jar, and described second drilling rod is connected with the second end of described heavy weight drill pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420634407.5U CN204457433U (en) | 2014-10-29 | 2014-10-29 | Anti-inclination composite drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420634407.5U CN204457433U (en) | 2014-10-29 | 2014-10-29 | Anti-inclination composite drilling tool |
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| CN204457433U true CN204457433U (en) | 2015-07-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150401A (en) * | 2016-08-10 | 2016-11-23 | 中国石油天然气股份有限公司 | Flexible drill pipe and drilling equipment thereof |
| CN106223871A (en) * | 2016-08-10 | 2016-12-14 | 中国石油天然气股份有限公司 | Flexible drill rod |
| CN107676042A (en) * | 2017-10-26 | 2018-02-09 | 中国石油集团西部钻探工程有限公司 | Oil drilling three-dimensional horizontal well rigidity drifting BHA |
| CN113882805A (en) * | 2021-08-31 | 2022-01-04 | 中国石油天然气集团有限公司 | Drilling tool combination capable of drilling easily-inclined and difficultly-drilled stratum quickly |
-
2014
- 2014-10-29 CN CN201420634407.5U patent/CN204457433U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150401A (en) * | 2016-08-10 | 2016-11-23 | 中国石油天然气股份有限公司 | Flexible drill pipe and drilling equipment thereof |
| CN106223871A (en) * | 2016-08-10 | 2016-12-14 | 中国石油天然气股份有限公司 | Flexible drill rod |
| CN106223871B (en) * | 2016-08-10 | 2019-04-12 | 中国石油天然气股份有限公司 | Flexible drill rod |
| CN106150401B (en) * | 2016-08-10 | 2020-01-07 | 中国石油天然气股份有限公司 | Flexible drill pipe and drilling equipment thereof |
| CN107676042A (en) * | 2017-10-26 | 2018-02-09 | 中国石油集团西部钻探工程有限公司 | Oil drilling three-dimensional horizontal well rigidity drifting BHA |
| CN113882805A (en) * | 2021-08-31 | 2022-01-04 | 中国石油天然气集团有限公司 | Drilling tool combination capable of drilling easily-inclined and difficultly-drilled stratum quickly |
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Granted publication date: 20150708 |