CN205778560U - It is bit Integrated that centering type hydraulic bores expansion - Google Patents

It is bit Integrated that centering type hydraulic bores expansion Download PDF

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Publication number
CN205778560U
CN205778560U CN201620615386.1U CN201620615386U CN205778560U CN 205778560 U CN205778560 U CN 205778560U CN 201620615386 U CN201620615386 U CN 201620615386U CN 205778560 U CN205778560 U CN 205778560U
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China
Prior art keywords
nozzle
eddy flow
bit
drill
type hydraulic
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CN201620615386.1U
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Chinese (zh)
Inventor
张义
鲍清英
孙粉锦
穆福元
李五忠
张继东
东振
王勃
杨焦生
刘坤
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Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Abstract

This utility model is that a kind of centering type hydraulic brill expands bit Integrated, including top connection, drill body, is provided with wing outside drill body.Drill body is eccentrically set on the bottom of top connection, and the inside of drill body is provided with drill bit cavity, and top connection is provided with the interface channel of up/down perforation;The upper end of drill bit cavity communicates with interface channel;Drill body is provided with recoil nozzle, eddy flow cutting nozzle, the oblique impact nozzle communicated with drill bit cavity and flings nozzle.By this bit Integrated nozzle, drilling mud pressure is converted into kinetic energy, erosion, shearing-crushing shaft bottom and rock of borehole, coordinate plough sword formula spiral wing cutting shaft bottom, rock of borehole, it is achieved bit hydraulic, machinery creep into, reaming institutional operation, improve drill bit rate of penetration and efficiency of breaking rock.

Description

It is bit Integrated that centering type hydraulic bores expansion
Technical field
This utility model relates to oil-gas field drill field of engineering technology, particularly relates to a kind of centering type hydraulic and bores expansion one Body drill bit.
Background technology
Along with going deep into of oil-gas resource exploration and development, complex geologic conditions, rate of penetration are low, drilling cost increases The problem such as add to become clear day by day.Being continuously increased especially as drilling depth, the drilling fluid column pressure in pit shaft the most constantly increases, More and more obvious to the chip hold down effect of landwaste, the transmission of the hydraulic energy in drilling process, change, distribute and utilization ratio also with The increase well depth reduces further, and this directly results in the decline of bit speed.Preferred, the Drilling Water Radix Talini Paniculati of suitability drill bit The optimization design of number, the efficient auxiliary rock of waterpower and bottom-hole cleaning landwaste, have become as raising bit speed, shorten shaft building week Phase, the effective means of reduction drilling cost.Existing centering type drill bit relies primarily on drill bit eccentric setting and major axis sidewall Tooth realizes mechanical type and breaks rock, expands the purpose of hole diameter, and the hydrojet nozzle on short axle sidewall acts primarily as spurt, scrubs the work of the borehole wall With, bit hydraulic horsepower utilizes relatively low, and the structure of drill bit has to be optimized, the efficiency of breaking rock of drill bit, takes rock efficiency etc. and needs further Improve.
Thus, the present inventor relies on experience and the practice being engaged in relevant industries for many years, proposes a kind of centering type hydraulic Bore expansion bit Integrated, to overcome the defect of prior art.
Utility model content
It is bit Integrated, by drilling mud pressure that the purpose of this utility model is to provide a kind of centering type hydraulic to bore expansion Kinetic energy, erosion, shearing-crushing shaft bottom and rock of borehole can be converted into, coordinate wing cutting shaft bottom, rock of borehole, it is achieved drill bit water Power, machinery creep into, reaming institutional operation, improve drill bit rate of penetration and efficiency of breaking rock.
The purpose of this utility model be achieved in that a kind of centering type hydraulic bore expand bit Integrated, described partially Core type hydraulic bores and expands bit Integrated top connection, the drill body of including, is provided with wing, described brill outside described drill body Head body is eccentrically set on the bottom of described top connection, and the inside of described drill body is provided with drill bit cavity, and described top connection sets There is the interface channel of up/down perforation;The upper end of described drill bit cavity communicates with described interface channel;Described drill body is provided with The recoil nozzle, the eddy flow that communicate with described drill bit cavity cut nozzle, oblique impact nozzle and fling nozzle;Described oblique impact nozzle and institute Stating and fling nozzle and be arranged on the bottom of described drill body, described recoil nozzle and described eddy flow cutting nozzle are arranged on described brill The circumference side of head body, and described eddy flow cutting nozzle is positioned at the lower section of described recoil nozzle.
In a better embodiment of the present utility model, described drill body includes cylindrical body and coniform Body, described coniform body is co-axially located at the bottom of described cylindrical body;Described top connection is eccentrically set on described cylinder The top of shape body.
In a better embodiment of the present utility model, described recoil nozzle is provided with multiple, the most uniformly sets Putting the top at described cylindrical body, the injection direction of described recoil nozzle is inclined upwardly.
In a better embodiment of the present utility model, the injection direction of described recoil nozzle and described drill body axle The angle of line is 135 °.
In a better embodiment of the present utility model, described eddy flow cutting nozzle includes the cutting spray of multiple upper row's eddy flow Mouth and multiple lower row's eddy flow cutting nozzle, described upper row's eddy flow cutting nozzle and described lower row's eddy flow cutting nozzle the most circumferentially side To being uniformly arranged on described cylindrical body, described upper row's eddy flow cutting nozzle is positioned at the lower section of described recoil nozzle, its spray Penetrate direction to be inclined upwardly;Described lower row's eddy flow cutting nozzle is positioned at the lower section of described upper row's eddy flow cutting nozzle, its injection direction Downward-sloping.
In a better embodiment of the present utility model, the injection direction of described upper row's eddy flow cutting nozzle and described brill The angle of head body axis is 105 °-110 °;The injection direction of described lower row's eddy flow cutting nozzle and described bit-body axis Angle be 60 °.
In a better embodiment of the present utility model, described in fling nozzle and be co-axially located at described coniform body On axis, described in fling the injection direction of nozzle towards underface.
In a better embodiment of the present utility model, described oblique impact nozzle is provided with multiple, is arranged on described coniform On the conical surface of body, and multiple described oblique impact nozzle is being uniformly arranged on the described circumferencial direction flinging nozzle, described tiltedly Rush the injection direction of nozzle obliquely downward.
In a better embodiment of the present utility model, the injection direction of described oblique impact nozzle and described drill body axle The angle of line is 30 °.
In a better embodiment of the present utility model, described wing includes multiple plough sword formula wing, described plough sword formula Wing is distributed uniformly and circumferentially outside described drill body;Each described plough sword formula wing from described coniform body in Helical form extends up to the top of described cylindrical body.
In a better embodiment of the present utility model, described eddy flow cutting nozzle includes the cutting spray of multiple upper row's eddy flow Mouth and multiple lower row's eddy flow cutting nozzle, described upper row's eddy flow cutting nozzle is along the circumferential direction uniformly arranged on described cylindric The middle part of body;Described lower row's eddy flow cutting nozzle is along the circumferential direction uniformly arranged on the bottom of described cylindrical body;On described The injection direction of row's eddy flow cutting nozzle is inclined upwardly;The injection direction of described lower row's eddy flow cutting nozzle is downward-sloping;
The described nozzle that flings is co-axially located on the axis of described coniform body, described in fling the injection direction court of nozzle To underface;
Described oblique impact nozzle is provided with multiple, is arranged on the conical surface of described coniform body, and multiple described oblique impact nozzle Being uniformly arranged on the described circumferencial direction flinging nozzle, the injection direction of described oblique impact nozzle is obliquely downward.
From the above mentioned, it is bit Integrated rational in infrastructure compact that centering type hydraulic of the present utility model bores expansion, installation side Just.Fling nozzle, oblique impact nozzle by be arranged on the coniform body of drill bit, drilling mud pressure energy is converted into kinetic energy, can Erosion bottom rock auxiliary rock, improves drill bit efficiency of breaking rock more than 30%.By the drill body designed with top connection bias, Drive helical form plough sword formula wing carry out bias creep into, machine cut rock of borehole, well can be played mechanical hole reaming effect, Borehole enlargement 15%-20%.By the eddy flow cutting nozzle being arranged on drill bit cylindrical body, drilling mud is converted into height Rapid fire stream, eddy flow erosion, shearing-crushing rock of borehole, well can be further functioned as hydraulic reaming effect, borehole enlargement 100%-120%.By the recoil nozzle being arranged on drill bit cylindrical body, utilize the high-speed jet that nozzle produces at drill bit Outer annular space forms negative pressuren zone, and shaft bottom mud and landwaste are played " siphonage ", and can be effectively improved drilling mud takes rock efficiency.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model Enclose.Wherein:
Fig. 1: bore for this utility model and expand bit Integrated overall structure schematic diagram.
Fig. 2: bore for this utility model and expand bit Integrated end view.
Fig. 3: for the Section A-A sectional view in Fig. 2.
Fig. 4: for the section B-B sectional view in Fig. 2.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing explanation Detailed description of the invention of the present utility model.
As shown in figures 1 and 3, this utility model provides a kind of centering type hydraulic and bores expansion bit Integrated 100, bag Include top connection 1, drill body 2, wing, fling nozzle 9, oblique impact nozzle 8, eddy flow cutting nozzle, recoil nozzle 3.Connect on described The 1 internal interface channel 102 being provided with its top and bottom through, in the upper end of top connection 1 uses, tapered screw thread 101 designs, Being used for being connected with tool joint, the lower end of top connection 1 and drill body 2 use integral type bias to design;I.e. top connection 1 lower end with Drill body 2 one connects, and the pivot center of top connection 1 has certain distance with the pivot center skew of drill body 2.Top connection 1 rotates under the drive of drilling rod, thus drill body 2 produces eccentric rotary, drives drill body 2 to creep in centering type, to well Eye plays mechanical type reaming effect.Wing is arranged on the outer wall of drill body 2.Described oblique impact nozzle 8 and described fling nozzle 9 It is arranged on the bottom of described drill body 2, described recoil nozzle 3 and described eddy flow cutting nozzle and is arranged on described drill body Circumference side, and described eddy flow cutting nozzle is positioned at the lower section of described recoil nozzle 3.The top of drill body 2 is cylindric Body 202, bottom is coniform body 203, and described coniform body 203 is coaxially integrally disposed upon described cylindrical body 202 Bottom.Described top connection 1 is integrally eccentrically set on the top of described cylindrical body 202.The inside of described drill body 2 is provided with Drill bit cavity 201, drill bit cavity 201 runs through whole cylindrical body 202, and the bottom of drill bit cavity 201 is through to coniform The inside of body 203, the upper end of described drill bit cavity 201 communicates with described interface channel 102.Drilling mud can be passed into this drill bit In cavity 201.Described drill body 2 is provided with recoil nozzle 3, the eddy flow cutting nozzle, tiltedly communicated with described drill bit cavity 201 Rush nozzle 8 and fling nozzle 9.Recoil nozzle 3, eddy flow cutting nozzle, oblique impact nozzle 8 and fling nozzle 9 and all penetrate drill body 2 Wall, drill bit cavity 201 is connected with bit exterior, drilling mud can by these nozzles spray drill body 2, be ejected into rock On wall, the mechanical turning effort one with wing reacts on crag, plays the effect of auxiliary rock.
Further, as shown in Figure 3 and Figure 4, described recoil nozzle 3 is provided with five, is along the circumferential direction uniformly arranged on described The top of cylindrical body 202, recoil nozzle 3 tilts upward from the Inside To Outside of cylindrical body 202 sidewall, i.e. described The injection direction of recoil nozzle 3 is inclined upwardly.The axis of recoil nozzle 3 is defined as with the angle of drill body 2 axis with recoil The axis of nozzle 3 is starting point, and being rotated downwardly to drill body 2 axis is terminal, and the angle that the axis of recoil nozzle 3 rotates through is i.e. For this angle;The definition of angle described below is identical with this.The injection direction of described recoil nozzle 3 and described drill body 2 The angle of axis is 135 °.By the recoil nozzle 3 being arranged on drill bit cylindrical body 202, utilize the high speed that nozzle produces Jet forms negative pressuren zone at the outer annular space of drill bit, shaft bottom mud and landwaste is played " siphonage ", can be effectively improved drilling mud Take rock efficiency.
Further, described eddy flow cutting nozzle arranges eddy flow cutting spray under including five upper row's eddy flows cutting nozzles 4 and five Mouth 6, described upper row's eddy flow cutting nozzle 4 and described lower row's eddy flow cutting nozzle 6 are the most along the circumferential direction uniformly arranged on described circle In cylindrical body 202, described upper row's eddy flow cutting nozzle 4 is positioned at the lower section of described recoil nozzle 3, in the present embodiment, upper row Eddy flow cutting nozzle 4 is positioned at the middle part of cylindrical body 202, and upper row's eddy flow cutting nozzle 4 is in cylindrical body 202 sidewall Laterally outside tilts upward, i.e. its injection direction is inclined upwardly.Described lower row's eddy flow cutting nozzle 6 is positioned at described upper row's eddy flow The lower section of cutting nozzle 4, in the present embodiment, lower row's eddy flow cutting nozzle 6 is positioned at the bottom of cylindrical body 202, and lower row is revolved Stream cutting nozzle 6 tilts downward from the Inside To Outside of cylindrical body 202 sidewall, i.e. its injection direction is downward-sloping.Institute The injection direction of the row's of stating eddy flow cutting nozzle 4 is 105 °-110 ° with the angle of described drill body 2 axis;Described lower row is revolved The injection direction of stream cutting nozzle 6 is 60 ° with the angle of described drill body 2 axis.By being arranged on drill bit cylindrical body Eddy flow cutting nozzle on 202, is converted into high-speed jet by drilling mud, and eddy flow erosion, shearing-crushing rock of borehole can be to wells Eye further functions as hydraulic reaming effect, borehole enlargement 100%-120%.
Further, as shown in Figure 2, Figure 3 and Figure 4, described in fling nozzle 9 and be provided with one, be co-axially located at described coniform On the axis of body 203, described in fling the injection direction of nozzle 9 towards underface.Described oblique impact nozzle 8 is provided with five, arranges On the conical surface of described coniform body 203, and multiple described oblique impact nozzle 8 is around the described circumferencial direction flinging nozzle 9 On be uniformly arranged, the injection direction of described oblique impact nozzle 8 is obliquely downward.The injection direction of described oblique impact nozzle 8 and described brill The angle of head body 2 axis is 30 °.Fling nozzle 9, oblique impact nozzle 8 by be arranged on the coniform body of drill bit 203, fill Divide and utilize bernoulli principle, drilling mud pressure energy can be converted into by the throttling of oblique nozzle the kinetic energy of high-speed jet, can revolve Stream erosion, cutting bottom rock auxiliary rock, improve drill bit efficiency of breaking rock more than 30%, well further functioned as hydraulic reaming Effect.
Further, wing described in the present embodiment uses multiple plough sword formula wings 5, the sword of plough sword formula wing 5 to plough with rural area The sword of the farm implements plough in field is similar, and plough sword cutting face is relatively thin, the sharpest, extends in the shape of a spiral, and rock breaking efficiency is the best, permissible 3-6 plough sword formula wing 5 is set.Described plough sword formula wing 5 is distributed uniformly and circumferentially outside described drill body 2;Often Individual described plough sword formula wing 5 extends up to the upper of described cylindrical body 202 in the shape of a spiral from described coniform body 203 Portion.Described oblique impact nozzle 8, described upper row's eddy flow cutting nozzle 4, described lower row's eddy flow cutting nozzle 6 all with described plough sword formula cutter The wing 5 interval is arranged, i.e. interval is arranged between adjacent two plough sword formula wing 5.Drill bit by design eccentric with top connection 1 Body 2, drive helical form plough sword formula wing 5 carry out bias creep into, machine cut rock of borehole, well can be able to be played machinery expansion Hole effect, borehole enlargement 15%-20%.
From the above mentioned, centering type hydraulic of the present utility model bores and expands bit Integrated 100, flings nozzle by setting 9 and oblique impact nozzle 8, drilling mud pressure energy is converted into kinetic energy, erosion crushes bottom rock, coordinates and arranges on drill body 2 Plough sword formula spiral wing cutting bottom rock, improves drill bit efficiency of breaking rock.By the integral type to drill body 2 with top connection 1 Eccentric design, utilizes tool joint to drive the plough sword formula spiral wing of drill body 2 and upper setting thereof to carry out bias and creeps into, machinery Cutting rock of borehole, plays mechanical type reaming effect to well.By arranging rotation with bottom in the middle part of drill bit cylindrical body 202 Stream cutting nozzle, utilizes the throttling action of nozzle that drilling mud is converted into high-speed jet, eddy flow erosion, shearing-crushing borehole wall rock Stone, further functions as hydraulic reaming effect to well.By arranging one group of recoil nozzle 3 on drill bit cylindrical body top, utilize The high-speed jet that nozzle produces forms negative pressuren zone at the outer annular space of drill bit, plays shaft bottom mud and landwaste " siphonage ", thus That improves drilling mud takes rock efficiency, improves bit speed.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model Enclose.Any those skilled in the art, equivalent done on the premise of without departing from design of the present utility model and principle becomes Change and amendment, the scope of this utility model protection all should be belonged to.

Claims (11)

1. a centering type hydraulic brill expands bit Integrated, and described centering type hydraulic bores and expands bit Integrated including Joint, drill body, be provided with wing outside described drill body, it is characterised in that described drill body is eccentrically set on described The bottom of top connection, the inside of described drill body is provided with drill bit cavity, and described top connection is provided with the interface channel of up/down perforation; The upper end of described drill bit cavity communicates with described interface channel;Described drill body is provided with anti-with what described drill bit cavity communicated Rush nozzle, eddy flow cutting nozzle, oblique impact nozzle and fling nozzle;Described oblique impact nozzle and the described nozzle that flings are arranged on described brill The bottom of head body, described recoil nozzle and described eddy flow cutting nozzle are arranged on the circumference side of described drill body, and institute State eddy flow cutting nozzle and be positioned at the lower section of described recoil nozzle.
2. centering type hydraulic brill as claimed in claim 1 expands bit Integrated, it is characterised in that described drill body bag Including cylindrical body and coniform body, described coniform body is co-axially located at the bottom of described cylindrical body;On described Joint is eccentrically set on the top of described cylindrical body.
3. centering type hydraulic brill as claimed in claim 2 expands bit Integrated, it is characterised in that described recoil nozzle sets Having multiple, be along the circumferential direction uniformly arranged on the top of described cylindrical body, the injection direction of described recoil nozzle is to updip Tiltedly.
4. centering type hydraulic brill as claimed in claim 3 expands bit Integrated, it is characterised in that described recoil nozzle Injection direction is 135 ° with the angle of described bit-body axis.
5. centering type hydraulic brill as claimed in claim 2 expands bit Integrated, it is characterised in that the cutting spray of described eddy flow Mouth include multiple upper row's eddy flow cutting nozzle and multiple lower row's eddy flow cutting nozzle, described upper row's eddy flow cutting nozzle and described under Row's eddy flow cutting nozzle is the most along the circumferential direction uniformly arranged on described cylindrical body, and described upper row's eddy flow cutting nozzle is positioned at The lower section of described recoil nozzle, its injection direction is inclined upwardly;Described lower row's eddy flow cutting nozzle is positioned at described upper row's eddy flow and cuts Cutting the lower section of nozzle, its injection direction is downward-sloping.
6. centering type hydraulic brill as claimed in claim 5 expands bit Integrated, it is characterised in that described upper row's eddy flow is cut The angle of the injection direction and described bit-body axis of cutting nozzle is 105 °-110 °;The spray of described lower row's eddy flow cutting nozzle The angle penetrating direction and described bit-body axis is 60 °.
7. centering type hydraulic as claimed in claim 2 bore expand bit Integrated, it is characterised in that described in fling nozzle with Axle is arranged on the axis of described coniform body, described in fling the injection direction of nozzle towards underface.
8. centering type hydraulic brill as claimed in claim 7 expands bit Integrated, it is characterised in that described oblique impact nozzle sets Have multiple, be arranged on the conical surface of described coniform body, and multiple described oblique impact nozzle is around the described circle flinging nozzle Being uniformly arranged in circumferential direction, the injection direction of described oblique impact nozzle is obliquely downward.
9. centering type hydraulic brill as claimed in claim 8 expands bit Integrated, it is characterised in that described oblique impact nozzle Injection direction is 30 ° with the angle of described bit-body axis.
10. centering type hydraulic brill as claimed in claim 2 expands bit Integrated, it is characterised in that described wing includes Multiple plough sword formula wings, described plough sword formula wing is distributed uniformly and circumferentially outside described drill body;Each described plough Sword formula wing extends up to the top of described cylindrical body in the shape of a spiral from described coniform body.
It is bit Integrated that 11. centering type hydraulics as claimed in claim 3 bore expansion, it is characterised in that described eddy flow cuts Nozzle includes multiple upper row's eddy flow cutting nozzle and multiple lower row's eddy flow cutting nozzle, and described upper row's eddy flow cutting nozzle is circumferentially Direction is uniformly arranged on the middle part of described cylindrical body;Described lower row's eddy flow cutting nozzle is along the circumferential direction uniformly arranged on institute State the bottom of cylindrical body;The injection direction of described upper row's eddy flow cutting nozzle is inclined upwardly;The cutting spray of described lower row's eddy flow The injection direction of mouth is downward-sloping;
The described nozzle that flings is co-axially located on the axis of described coniform body, described in fling the injection direction of nozzle towards just Lower section;
Described oblique impact nozzle is provided with multiple, is arranged on the conical surface of described coniform body, and multiple described oblique impact nozzle is enclosing Being uniformly arranged on the described circumferencial direction flinging nozzle, the injection direction of described oblique impact nozzle is obliquely downward.
CN201620615386.1U 2016-06-21 2016-06-21 It is bit Integrated that centering type hydraulic bores expansion Active CN205778560U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112963164A (en) * 2021-05-19 2021-06-15 山东汉鑫尊新材料有限公司 Integral type entry driving machine is used in tunnel tunnelling
CN113047774A (en) * 2021-03-18 2021-06-29 中煤科工集团西安研究院有限公司 Broken stratum multistage hole wall repairing drilling tool combination and directional drilling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113047774A (en) * 2021-03-18 2021-06-29 中煤科工集团西安研究院有限公司 Broken stratum multistage hole wall repairing drilling tool combination and directional drilling method
CN112963164A (en) * 2021-05-19 2021-06-15 山东汉鑫尊新材料有限公司 Integral type entry driving machine is used in tunnel tunnelling

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