A kind of circumferential direction axial vacuum impact speed-raising tool
Technical field
The present invention relates to oil, natural gas extraction drilling speed technical fields, are a kind of circumferential axis improving bit speed
To negative pressure percussion tool.
Background technology
As drilling well difficulty, drilling depth are continuously increased, especially deep-well, ultradeep well, rate of penetration is low, drilling period
Problem long, that drilling cost is high is especially pronounced, and it is drilling technology to improve drill bit efficiency of breaking rock, improve bit speed, shorten the period
The target pursued always.
The most important step of drilling speed is to improve crushing efficiency, and pulsing jet technology is a kind of by the effective of scene confirmation
The technology of efficiency of breaking rock is improved, pulsing jet raises speed technology by the way that drilling fluid continuous flow turn to be changed into the intermittent flow of certain frequency
It is dynamic, change the distribution of shaft bottom cutting bed, improve shaft bottom landwaste upward velocity, avoids the repetition of landwaste broken, while generating axis
To impact, effectively improve rate of penetration.Existing pulsing jet speed-raising tool such as Chinese patent CN202152634U frequencies
Adjustable pulse jet stream raises speed described by the conjugation rotary seal valve of tool, CN205025358U generation pulsing jets, and structure is all
Power using turbine as driving valve disc rotation, realizes the keying to drill string inner flow passage, under the action of hydraulic coupling, generates axis
To downward impact force, to improve rate of penetration, but there is phenomena such as spring tooth repeatedly in drilling in PDC drill bit.For PDC
The easy spring tooth problem that drill bit occurs by stick slip vibration, the Torkbuster reverse impactors that Aunar drawing company proposes in the world, leads to
The torsional pulse that tool interior generates high frequency periodic is crossed, drill bit is made to continue to cut stratum, stick slip vibration is eliminated and improves drilling well speed
Degree;Existing torsion impact speed-raising tool such as Chinese patent CN205135405U frequencies torsion-adjustable impact speed-raising tool,
Described by CN204984255U torsion impact speed-raising tools, structure uses impact hammer and conversion body alternating movement, jump bit
Body, which generates periodically circumferential hammer force, makes drill bit continue chip stratum, but its flow passage structure is complicated, and jump bit generates hammering
Power is limited.
Invention content
Technical problem to be solved by the invention is to provide a kind of circumferential axial vacuums to impact speed-raising tool, is provided simultaneously with torsion
The performance of power impactor and pulsing jet drilling well, further increases bit speed, in preferred scheme, can realize to drill bit
High frequency circumferential and axial impact, and generate shaft bottom negative pressure, realize local under balance pressure drilling, solve pulsing jet technology in the prior art
The small problem of the circumferential impact force of its in the stick slip vibration problem and torsional pulse tool of middle PDC drill bit.
In order to solve the above technical problems, the technical solution adopted in the present invention is:A kind of circumferential direction axial vacuum impact speed-raising
Tool, including outer barrel, determine valve seat, fixed valve plate, moving valve plate, impact cylinder, jump bit, reversal valve, ball bearing, it is characterized in that:
A kind of interior main valve and control valve for being equipped with commutation control each other of circumferential direction axial vacuum impact speed-raising tool, impact cylinder
Internal face and jump bit outside wall surface constitute main valve, and jump bit internal face and reversal valve outside wall surface constitute control valve;
Impact cylinder outside wall surface is equipped with 3 high pressure diversion trenches and 3 deflector holes, and internal face is equipped with jump bit slot and low pressure water conservancy diversion
Slot, low pressure diversion trench are connected to center flow channels;
Jump bit outer wall is equipped with the hammer body of protrusion, and diversion trench and deflector hole are equipped in hammer body, and hammer body both sides are equipped with deflector hole,
Jump bit inner wall is equipped with the block body of protrusion, and block body both sides are equipped with deflector hole;Reversal valve outer wall is equipped with diversion trench and two dredging flow grooves, lets out
Chute is connected to by deflector hole with center flow channels;
Be additionally provided in a kind of circumferential direction axial vacuum impact speed-raising tool it is dynamic determine valve group, moving valve plate is fixed on jump bit,
Fixed valve plate, which is fixed on, to be determined on valve seat, is determined valve seat and is fixedly connected with impact cylinder.
The hammer body of the jump bit is placed in the jump bit slot of impact cylinder, is divided into two hammer body sap cavities;
The reversal valve is placed in jump bit, and the block body of jump bit is placed in the block body slot of reversal valve, is divided into
Two reversal valve sap cavities.
Each uniformly distributed 4 deflector holes on the moving valve plate and fixed valve plate.
The valve seat top cylinder of determining is equipped with deflector hole.
The outer barrel is connected by spline block with impact cylinder and transmits torque, and gap is equipped between spline block.
A kind of circumferential axial vacuum provided by the invention impacts speed-raising tool, by using above structure, has following
Advantageous effect:
1, using the main valve of commutation control each other and control valve arrangement, wherein impact cylinder internal face and jump bit outside wall surface structure
At main valve, jump bit internal face and reversal valve outside wall surface constitute control valve, make jump bit in the past physical pendulum of hammer body slot periodically
It is dynamic, the rotation of moving valve plate is driven by jump bit, realizes the opening and closing to drill string inner flow passage, realizes pulsing jet drilling well,
Be avoided that turbine drives are also easy to produce suppress dead problem and using the shorter problem of life tools caused by the elastic elements such as spring, greatly
The working life of the big reliability and tool for improving tool.
2, using the dynamic structure for determining valve group of keying, when it is dynamic determine valve group and completely close when, the surge of generation is more than torsion
The choke pressure of nozzle is big in power percussion tool, can effectively solve the problems, such as that torsion impact tool impact torque is small, improves work
The circumferential impact of tool, further decreases the stick slip vibration of PDC drill bit.
3, apparatus of the present invention are simple in structure, length is short, using all-metal construction, have the advantages that with long service life.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the front view structure schematic cross-sectional view of the present invention.
Fig. 2 is another front view structure schematic cross-sectional view of the present invention.
Fig. 3 is the sectional view along A-A of Fig. 1 in the present invention.
Fig. 4 is the B-B direction sectional view of Fig. 1 in the present invention.
Fig. 5 is the stereoscopic schematic diagram of impact cylinder in the present invention.
Fig. 6 is the stereoscopic schematic diagram of jump bit in the present invention.
Fig. 7 is the stereoscopic schematic diagram of reversal valve in the present invention.
Fig. 8 is that the stereoscopic schematic diagram for determining valve group is moved in the present invention.
The A-A that Fig. 9 is Fig. 1 in the present invention illustrates to the first location drawing of the impact cylinder of section view, jump bit, reversal valve
Figure.
The A-A that Figure 10 is Fig. 1 in the present invention illustrates to second of location drawing of the impact cylinder of section view, jump bit, reversal valve
Figure.
The A-A that Figure 11 is Fig. 1 in the present invention illustrates to the third location drawing of the impact cylinder of section view, jump bit, reversal valve
Figure.
The A-A that Figure 12 is Fig. 1 in the present invention illustrates to the 4th kind of location drawing of the impact cylinder of section view, jump bit, reversal valve
Figure.
In figure:Outer barrel 1 determines valve seat 2, and fixed valve plate 3 determines valve inlet opening 301, and moving valve plate 4 moves valve inlet opening 401, impact cylinder
5, jump bit 6, reversal valve 7, ball bearing 8, high pressure diversion trench 9, diversion trench 10, reversal valve diversion trench 11, hammer body sap cavity 12, hammer body
Sap cavity 13, reversal valve dredging flow groove 14, center flow channels 15, reversal valve sap cavity 16, low pressure diversion trench 17, reversal valve sap cavity 18, water conservancy diversion
Hole 19, jump bit slot 20, deflector hole 21, spline block 22, jump bit hammer body 23, jump bit block body 24, deflector hole 25, deflector hole
26, deflector hole 27, deflector hole 28, reversal valve block body slot 29, gap 30, outer barrel spline 31.
Specific implementation mode
In Fig. 1-2, it is a kind of circumferential direction axial vacuum impact speed-raising tool, including outer barrel 1, determine valve seat 2, fixed valve plate 3, move valve
Piece 4, impact cylinder 5, jump bit 6, reversal valve 7, ball bearing 8;
In Fig. 3, a kind of interior main valve and control valve for being equipped with commutation control each other of circumferential direction axial vacuum impact speed-raising tool,
Its 5 internal face of impact cylinder and 6 outside wall surface of jump bit constitute main valve, and 6 internal face of jump bit and 7 outside wall surface of reversal valve constitute control
Valve;
In Fig. 5,5 outside wall surface of impact cylinder is set there are three high pressure diversion trench 9 and three deflector holes 21, and internal face is equipped with impact
Hammer slot 20 and low pressure diversion trench 17, low pressure diversion trench 17 are connected to center flow channels 15;
In Fig. 6,6 outer wall of jump bit is equipped with the hammer body 23 of protrusion, and diversion trench 10 and deflector hole 25 are equipped in hammer body 23,
23 both sides of hammer body are equipped with deflector hole 26, and 6 inner wall of jump bit is equipped with the block body 24 of protrusion, and 24 both sides of block body are equipped with deflector hole 27;
In Fig. 7,7 outer wall of reversal valve is equipped with diversion trench 11 and two dredging flow grooves 14, and dredging flow groove 14 is by deflector hole 28 in
Heart runner 15 is connected to;
In Fig. 1,2, it is additionally provided in a kind of circumferential direction axial vacuum impact speed-raising tool and dynamic determine valve group, the fixation of moving valve plate 4
On jump bit 6, fixed valve plate 3, which is fixed on, to be determined on valve seat 2, is determined valve seat 2 and is fixedly connected with impact cylinder 5.
In Fig. 3,5,6, the hammer body 23 of the jump bit 6 is placed in the jump bit slot 20 of impact cylinder 5, is divided into
Two hammer body sap cavities 12 and 13;
In Fig. 3,6,7, the reversal valve 7 is placed in jump bit 6, and the block body 24 of jump bit 6 is placed in reversal valve 7
In block body slot 29, it is divided into two reversal valve sap cavities 16 and 18.
In Fig. 8, each uniformly distributed 4 deflector holes 301 and 401, valve is moved by rotation on the moving valve plate 4 and fixed valve plate 3
Piece 4 makes the deflector hole 401 on moving valve plate 4 be connected to and close with the deflector hole 301 on fixed valve plate 3.
In Fig. 1,2,2 top cylinder of valve seat of determining is equipped with deflector hole 19.
In Fig. 4, the outer barrel 1 and impact cylinder 5 transmit torque, spline by spline block 22 and the connection of outer barrel spline 31
Gap 30 is equipped between block 22 and outer barrel spline 31.
It is four kinds of locations drawing of impact cylinder, jump bit, reversal valve in Fig. 9~12.
Circumferential direction axial vacuum impact speed-raising tool work principle is as follows:
Drill string driving outer barrel 1 rotates when work, and the spline 22 of outer barrel spline 31 and impact cylinder 5 coordinates, and drives on impact cylinder 5
Bit;Drilling fluid flows into center flow channels 15 through fixed valve plate 3, moving valve plate 4, the throttling of the AND DEWATERING FOR ORIFICE STRUCTURE due to moving fixed valve plate
Effect, the dynamic pressure determined valve group upper pressure and be more than lower part.
In Fig. 3,9, the dynamic high-pressure fluid for determining valve group top enters through deflector hole 19, diversion trench 9 and deflector hole 21 to be impacted
Then the diversion trench 10 of hammer 6 enters hammer body sap cavity 12 through deflector hole 25, the diversion trench 11 of reversal valve 7 and deflector hole 26;Hammer body
Sap cavity 13 is connected to through deflector hole 26, dredging flow groove 14 and deflector hole 28 with the dynamic center flow channels 15 for determining valve group lower part, wherein hammer body liquid
Chamber 12 is high pressure chest, and hammer body sap cavity 13 is low pressure chamber, and jump bit 6 rotates counterclockwise under the action of pressure at both sides difference, while band
The dynamic moving valve plate 4 being fixed on jump bit 6 rotates, dynamic to determine valve group and progressively close off, the pressure difference between hammer body sap cavity 12 and 13 with
Increase, it is dynamic determine valve group and completely close when 6 hammer impacts cylinder 5 of jump bit, act on the hammer force maximum on jump bit 6;Due to
The effect of the block body 24 of jump bit 6 inner wall protrusion drives reversal valve 7 to be rotated together to the position of Figure 10.
In Fig. 3,10, reversal valve sap cavity 16 is connected to through deflector hole 27, deflector hole 21 and diversion trench 9 with reversal valve top,
Reversal valve sap cavity 16 is high pressure chest;Reversal valve sap cavity 18 is connected to through deflector hole 27, diversion trench 17 with center flow channels 15, reversal valve
Sap cavity 18 is low pressure chamber;Reversal valve 7 rotates counterclockwise to the positions Figure 11 under the driving of pressure at both sides difference.
In Fig. 3,11, the dynamic high-pressure fluid for determining valve top enters through deflector hole 19, diversion trench 9 and deflector hole 21 to be impacted
Then the diversion trench 10 of hammer 6 enters hammer body sap cavity 13, hammer body through deflector hole 25, the diversion trench 11 of reversal valve 7 and deflector hole 26
Sap cavity 13 is high pressure chest;Hammer body sap cavity 12 is flowed through deflector hole 26, dredging flow groove 14 and deflector hole 28 and the dynamic center for determining valve group lower part
Road 15 is connected to, and hammer body sap cavity 12 is low pressure chamber;Jump bit 6 rotates clockwise under 23 both sides differential pressure action of hammer body, drives simultaneously
Moving valve plate and reversal valve are rotated to the positions Figure 12, dynamic to determine valve group unlatching.
In Fig. 3,12, reversal valve sap cavity 18 is connected to through deflector hole 27, deflector hole 21 and diversion trench 9 with reversal valve top,
Reversal valve sap cavity 18 is high pressure chest;Reversal valve sap cavity 16 is connected to through deflector hole 27, diversion trench 17 with center flow channels 15, reversal valve
Sap cavity 16 is low pressure chamber;Reversal valve 7 is rotated clockwise to the positions Fig. 9 under the driving of pressure at both sides difference.
The circumferential direction axial vacuum impacts the cycle of a cycle of the speed-raising tool through Fig. 9-10-11-12-9, and jump bit 6 is complete
It is dynamic to determine the primary keying of valve group completion at a forward impact, a reverse impact, realize the primary keying of drill string inner flow passage.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the limitation for the present invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, mutually can arbitrarily combine.The protection model of the present invention
Enclose the equivalent replacement side of technical characteristic in the technical solution that should be recorded with claim, including the technical solution of claim record
Case is protection domain.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.