CN104481406A - Test drill of particle impact well - Google Patents

Test drill of particle impact well Download PDF

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Publication number
CN104481406A
CN104481406A CN201410532857.8A CN201410532857A CN104481406A CN 104481406 A CN104481406 A CN 104481406A CN 201410532857 A CN201410532857 A CN 201410532857A CN 104481406 A CN104481406 A CN 104481406A
Authority
CN
China
Prior art keywords
nozzle
main
drill
particle
drill bit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410532857.8A
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Chinese (zh)
Other versions
CN104481406B (en
Inventor
任福深
付胜利
王学义
徐敏
郭菲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNPC Bohai Drilling Engineering Co Ltd
Original Assignee
CNPC Bohai Drilling Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CNPC Bohai Drilling Engineering Co Ltd filed Critical CNPC Bohai Drilling Engineering Co Ltd
Priority to CN201410532857.8A priority Critical patent/CN104481406B/en
Publication of CN104481406A publication Critical patent/CN104481406A/en
Application granted granted Critical
Publication of CN104481406B publication Critical patent/CN104481406B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/60Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/61Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/62Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/62Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • E21B10/633Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable

Abstract

The invention discloses a test drill of a particle impact well. The test drill of the particle impact well comprises a main body, the top of the main body is connected with an upper joint while the bottom thereof is provided with a plurality of nozzles and a plurality of rock debris cleaning bodies; the nozzles and the rock debris cleaning bodies are in the shape of cylinder, the rock debris cleaning bodies are vertical to the underside of the main body, the nozzles are mounted on the main body through the screw holes inclining for different degrees relative to the axis of the main body, a flow channel having preset angle with the axis of the nozzle is formed in each nozzle, and the end of the nozzle is provided with a clamping part used for adjusting the angle between the flow channel in the nozzle and the axis of the main body. The test drill of the particle impact well is used for researching the performance of the drill of the particle impact well technology.

Description

Particle impacting well test drill bit
Technical field
The present invention relates to drilling equipment field, in particular to a kind of particle impacting well test drill bit.
Background technology
Along with China is to the continuous increase of the demand of petroleum resources, under deep hard formation and complex geological condition, seek the emphasis direction that petroleum resources is current In Oil Field Exploration And Development.Improving hard formation bit speed is one of technical barrier faced at present, and the principal element affecting hard formation bit speed has formation hardness is large, abrasiveness is strong, drillability is poor, larger hole deviation etc., cause in hard formation drilling process, occur the problems such as bit speed is low, drilling period length, high cost, govern the bit speed of deep-well and ultradeep well and the overall efficiency of In Oil Field Exploration And Development.
The people such as PDTI company Curlett H.B., the Sharp D.P of the U.S. in 2002 and Gregory M.A. are subject to the inspiration of shooting bomb rock fragmenting thought, be applied in drilling engineering field, adopt the hydraulic energy of drilling mud as driving force, the rock that projectile carrys out crushing hard is intended by the spherical steel grit submodule of high speed hard, and carry circulation by drilling fluid, propose the new ideas of particle punching drilling (Particle Impact Drilling is called for short PID) technology.And particle impacting drill bit is the class New well drilling rock crushing tool grown up along with the proposition of particle impact drilling technology, there is broken lithology energy rapidly and efficiently in hardpan and the strong strata drilling of abrasion resistance, be mainly manifested in the inside and outside portion structure changing conventional bit, rely on that cleaner for high-pressure drilling fluid impacts, metallic steel particle high speed jet and gauge teeth, cutting teeth mechanism carry out brokenly rock, bit speed is fast, the pressure of the drill is low, and row cuts smooth and easy etc.
Particle punching drilling breaks rock based on high-speed dome converted steel particle impacting, associating high speed water conservancy breaks rock and mechanical tooth, and to break rock be auxiliary a kind of new well drilling and rock crushing method, can be used for drilling some special strata section, particularly cause the hard formation that drilling speed declines because of compressive strength.This drilling mode changes the method for cutting stratum, improves the utilization rate of energy.For extremely hard rock stratum, the broken rock of steel bomb will be far smaller than the broken rock of mechanical tooth than merit than merit, and the Local Instantaneous pulse stress peak value of generation is high, is enough to broken and that penetration is extremely hard rock.The pressure of the drill needed and moment of torsion comparatively conventional drilling are much smaller, substantially reduce fatigue failure (boring hard formation the is common failure mode) probability of drill string and drilling tool, bit wear is very little, the round trip number of times that less down-hole accident causes, shorten drilling period, reduce drilling cost.
The broken rock mode of particle punching drilling drill bit be utilize that cleaner for high-pressure drilling fluid impacts, converted steel particle hits and Cutter, gauge teeth the combined-breaking rock such as mechanism.First, break rock by high speed converted steel particle impacting, form volumetric fracture hole, under the comprehensive function of multiple nozzle, form rock ansa, rock ansa releases original internal stress, forms loose shape.Then broken under the mechanism of gauge teeth and cutting teeth, form landwaste.Last landwaste, under the percussion of cleaner for high-pressure drilling fluid, returns to ground with drilling fluid.In this way, whole rock break-off process is completed.
Because current particle impact drilling technology is also in more elementary developing stage, not mature enough, it is too high that direct use finished product drill bit carries out experimentation cost, therefore a kind of particle punching drilling experiment drill bit of the performance for studying drill bit in particle impact drilling technology is needed badly, with the experimental study to reasonable particle spraying angle, eject position, the realization for particle punching drilling provides reliable test parameters.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of particle punching drilling experiment drill bit that can be used in the performance studying drill bit in particle impact drilling technology.
Therefore, technical scheme of the present invention is as follows:
Particle impacting well test drill bit, comprise main body, the top of described main body is connected with top connection, bottom is provided with multiple nozzle and multiple landwaste cleaning body, described nozzle and described landwaste cleaning body are cylinder, the plane perpendicular of described landwaste cleaning body and described main body is arranged, multiple described nozzle is installed on the body respectively by the screw of the axis inclination different angles relative to described main body, the runner becoming predetermined angle with this nozzle own axes is provided with in each described nozzle, what the end of described nozzle was also provided with the angle of the axis for adjusting described nozzle inner flow passage and described main body beats clamper.
Described main body comprises the drill main body and cut drill body that are bolted, cut drill body is connected to by concave head bolt and connects on drill main body, can change easily for cut drill body that is aging in test, that damage, reduce experimental cost, improve conventional efficient, and the position of cut drill body top nozzle can be changed, reach the different nozzle location of test to the impact of efficiency of breaking rock.
Wherein, the quantity of described nozzle can be three, and the quantity of described landwaste cleaning body can be two.
Particle impacting well test drill bit in the present invention, by selecting the specification of nozzle and passing through to beat clamper rotary nozzle also circumference location within the scope of 360 °, thus can realize different channel sizes, spray angle, the isoparametric research of eject position, research for particle impacting drill bit provides reliable experimental data, cost is low, and efficiency is high; Landwaste cleaning body is connected on cut drill body by the mode of welding, and the track of the complete covering nozzles of rotational trajectory of landwaste cleaning body, can clear up the landwaste on nozzle track, reach the effect of protection nozzle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the particle impacting well test drill bit according to the embodiment of the present invention;
Fig. 2 is the sectional view of the nozzle of particle impacting well test drill bit in Fig. 1;
Fig. 3 is the schematic diagram beating clamper of nozzle-end in the particle impacting well test drill bit according to the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, particle impacting well test drill bit according to an embodiment of the invention, comprise main body 1, the top of described main body 1 is connected with top connection 2, bottom is provided with multiple nozzle 3 and multiple landwaste cleaning body 4, described nozzle 3 and described landwaste cleaning body 4 are cylinder, described landwaste cleaning body 4 is arranged with the plane perpendicular of described main body 1, multiple described nozzle 3 is arranged in described main body 1 respectively by the screw of the axis inclination different angles relative to described main body 1, the runner 31 becoming predetermined angle with this nozzle 3 own axes is provided with in each described nozzle 3, what the end of described nozzle 3 was also provided with the angle of the axis for adjusting described nozzle 3 inner flow passage and described main body 1 beats clamper 5.
Described main body comprises the drill main body 11 and cut drill body 12 that are bolted, cut drill body 12 is connected to by concave head bolt and connects on drill main body 11, can change easily for cut drill body 12 that is aging in test, that damage, reduce experimental cost, improve conventional efficient, and the position of cut drill body 12 top nozzle 3 can be changed, reach the different nozzle location of test to the impact of efficiency of breaking rock.
Wherein, the quantity of described nozzle 3 can be three, and the quantity of described landwaste cleaning body 4 can be two.
Particle impacting well test drill bit in the present invention, by selecting the specification of nozzle 3 and passing through to beat clamper 5 rotary nozzle 3 also circumference location within the scope of 360 °, thus can realize different channel sizes, spray angle, the isoparametric research of eject position, research for particle impacting drill bit provides reliable experimental data, cost is low, and efficiency is high; Landwaste cleaning body 4 is connected on cut drill body 12 by the mode of welding, and the track of the complete covering nozzles 3 of rotational trajectory of landwaste cleaning body 4, can clear up the landwaste on nozzle 3 track, reach the effect of protection nozzle 3.
In sum, content of the present invention is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present invention, but this embodiment all comprises within the scope of the present invention.

Claims (4)

1. a particle impacting well test drill bit, it is characterized in that, comprise main body (1), the top of described main body (1) is connected with top connection (2), bottom is provided with multiple nozzle (3) and multiple landwaste cleaning body (4), described nozzle (3) and described landwaste cleaning body (4) are cylinder, described landwaste cleaning body (4) is arranged with the plane perpendicular of described main body (1), multiple described nozzle (3) is arranged in described main body (1) respectively by the screw of the axis inclination different angles relative to described main body (1), the runner (31) becoming predetermined angle with this nozzle (3) own axes is provided with in each described nozzle (3), what the end of described nozzle (3) was also provided with the angle of the axis for adjusting described nozzle (3) inner flow passage and described main body (1) beats clamper (5).
2. particle impacting well test drill bit according to claim 1, is characterized in that, the quantity of described nozzle is three.
3. particle impacting well test drill bit according to claim 1, is characterized in that, described main body comprises the drill main body (11) and cut drill body (12) that are bolted.
4. particle impacting well test drill bit according to any one of claim 1 to 3, is characterized in that, the quantity of described landwaste cleaning body (4) is two.
CN201410532857.8A 2014-10-11 2014-10-11 Particle impacting well test drill bit Expired - Fee Related CN104481406B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410532857.8A CN104481406B (en) 2014-10-11 2014-10-11 Particle impacting well test drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410532857.8A CN104481406B (en) 2014-10-11 2014-10-11 Particle impacting well test drill bit

Publications (2)

Publication Number Publication Date
CN104481406A true CN104481406A (en) 2015-04-01
CN104481406B CN104481406B (en) 2016-08-24

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Family Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958392A (en) * 2019-03-17 2019-07-02 东北石油大学 Joint high voltage discharge type drilling rig and boring method
CN111456643A (en) * 2020-04-14 2020-07-28 江苏和信石油机械有限公司 But ocean continuous operation drilling tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2391192A1 (en) * 2002-06-20 2003-12-20 Cubex Limited Rock drill bit
CN102345445A (en) * 2011-06-10 2012-02-08 中国石油大学(华东) Drill bit for particle impact drilling technology
CN202220556U (en) * 2011-08-31 2012-05-16 中国石油化工股份有限公司 Drill bit for particle impact drilling
CN102953685A (en) * 2011-08-31 2013-03-06 中国石油化工股份有限公司 Drill bit for particle percussion drilling
CN103774991A (en) * 2012-10-17 2014-05-07 中国石油天然气集团公司 Shaft bottom particle injection drilling speed increasing tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2391192A1 (en) * 2002-06-20 2003-12-20 Cubex Limited Rock drill bit
CN102345445A (en) * 2011-06-10 2012-02-08 中国石油大学(华东) Drill bit for particle impact drilling technology
CN202220556U (en) * 2011-08-31 2012-05-16 中国石油化工股份有限公司 Drill bit for particle impact drilling
CN102953685A (en) * 2011-08-31 2013-03-06 中国石油化工股份有限公司 Drill bit for particle percussion drilling
CN103774991A (en) * 2012-10-17 2014-05-07 中国石油天然气集团公司 Shaft bottom particle injection drilling speed increasing tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109958392A (en) * 2019-03-17 2019-07-02 东北石油大学 Joint high voltage discharge type drilling rig and boring method
CN109958392B (en) * 2019-03-17 2020-05-26 东北石油大学 Combined high-voltage discharge type drilling device and drilling method
CN111456643A (en) * 2020-04-14 2020-07-28 江苏和信石油机械有限公司 But ocean continuous operation drilling tool

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