CN206338036U - A kind of three-dimensional bumper jar of nearly drill bit - Google Patents

A kind of three-dimensional bumper jar of nearly drill bit Download PDF

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Publication number
CN206338036U
CN206338036U CN201621376117.0U CN201621376117U CN206338036U CN 206338036 U CN206338036 U CN 206338036U CN 201621376117 U CN201621376117 U CN 201621376117U CN 206338036 U CN206338036 U CN 206338036U
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CN
China
Prior art keywords
sleeve
hole
wall
housing
valve
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Withdrawn - After Issue
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CN201621376117.0U
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Chinese (zh)
Inventor
魏俊
马良丰
冯进
何顺
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Yangtze University
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Yangtze University
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Abstract

The utility model discloses a kind of three-dimensional bumper jar of nearly drill bit, including power sub, transition joint and the vibration pipe nipple for being coaxially disposed and being sequentially connected;First enclosure interior of power sub is provided with the turbo-power component for the turbocharging assembly for including turbine spindle and being centered around outside turbine spindle, and the first enclosure interior is additionally provided with the first sleeve being coaxially disposed with turbine spindle, bearing (ball) cover, thrust bearing, pressure balancing system fixing end, second sleeve, valve disc, valve seat and 3rd sleeve;The fluid passage of turbocharging assembly, the inner chamber of the first sleeve, the ring cavity of pressure balancing system fixing end, the inner chamber of second sleeve, the first waist-shaped hole of valve disc, the second waist-shaped hole formation high pressure communicating passage of valve seat, inner chamber, spindle hole, the first cavity, low pressure hole and the second cavity formation low pressure communication passage of turbine spindle.The bumper jar can axially and radially simultaneously dither, improve load transfer efficiency, improve rate of penetration, increase the service life.

Description

A kind of three-dimensional bumper jar of nearly drill bit
Technical field
The utility model is related to oil and gas well drilling engineer equipment technical field, and in particular to a kind of nearly drill bit three-dimensional shake Hit device.
Background technology
In recent years, continuing to develop with major oil drilling engineering technology, casing programme complexity and drilling well difficulty by It is cumulative to add.The problems such as high angle hole, quantity increase and the increase of horizontal well horizontal section length of multi-branched horizontal well, is to oil gas Drilling proposes some new requirement actual requirements, development space and demand that the instrument that rubs drops in underground drag reduction has been obtained significantly Lifting.Complicated casing programme, not only proposes higher requirement to drilling technology and method, and larger hole angle makes stone Frictional resistance between oily drill string and the borehole wall is significantly increased, and reduces the transmission efficiency of the pressure of the drill, have impact on mechanical rate of penetration.
And bumper jar of the prior art is general during actual well drilled, it is difficult to high frequency while reaching axially and radially Vibration, load transfer efficiency is low and easy to wear and corrodes, and service life is short.
The content of the invention
In view of this, it is necessary to which a kind of energy axial-radial dither, improvement load transfer efficiency and raising simultaneously are provided Rate of penetration, the bumper jar increased the service life.
The three-dimensional bumper jar of a kind of nearly drill bit of the present utility model, including be coaxially disposed and be sequentially connected power sub, in Between joint and vibration pipe nipple;Power sub includes the first housing, and one end of the first housing is connected with transition joint, the first housing The other end is connected with the first joint goed deep into it;First enclosure interior is provided with turbo-power component, and turbo-power component includes Turbine spindle and the turbocharging assembly being centered around outside turbine spindle positioned at center, turbine spindle side wall is provided with the first master Crown of roll platform and the second main shaft boss, the second main shaft boss radial dimension are more than the first main shaft boss;
First enclosure interior is additionally provided with the first sleeve being coaxially disposed with turbine spindle, bearing (ball) cover, thrust bearing, pressure Balance system fixing end, second sleeve, valve disc, valve seat and 3rd sleeve;
Bearing (ball) cover includes end cap body of the coaxial sleeve on the first main shaft boss, is arranged at the end of end cap body bottom portion Lid boss, the end cap being circumferentially uniformly arranged along end cap this body sidewall are raised and located at end cap body and end cap boss center the One through hole;
Pressure balancing system fixing end includes the first cylinder and the second cylinder being coaxially disposed from outside to inside, first circle Ring cavity is provided between cylinder and the second cylinder, second cylinder inner wall is provided with the top of internal projecting ring, the internal projecting ring inner ring and is provided with ring Groove;
Valve disc includes valve disc body of the coaxial sleeve outside turbine spindle, and one end of valve disc body is coaxially provided with valve disc dome Platform, the end surface symmetric of valve disc dome platform is provided with low pressure hole, and the valve disc body is with being provided be connected first in valve disc dome platform Cavity, first cavity accommodates turbine spindle and is connected with low pressure hole;Valve disc is coaxially provided with the middle part of the side wall of valve disc body Bulge loop, the end face of the valve disc bulge loop is provided with the first waist-shaped hole;
Valve seat includes the valve body that center is provided with the second through hole, and the top of the valve body is provided with valve cup ring, the valve seat The second waist-shaped hole is provided with body on the outside of the second through hole, is separated between second through hole and the second waist-shaped hole by arc, Second through hole and the second waist-shaped hole are connected with the cavity in valve cup ring respectively;
Wherein, the outer wall of the first cylinder is connected with the first inner walls, the two ends of the first cylinder respectively with the first sleeve and Second sleeve is connected;One end of second cylinder offsets with end cap body bottom surface and end cap plateau sidewall respectively;Described 3rd The outer wall of sleeve is connected with internal projecting ring madial wall, and the inwall of the 3rd sleeve is connected with turbine spindle outer wall, described 3rd set Cylinder two ends are connected with valve disc dome you portion and thrust bearing respectively, and the inwall and turbine spindle outer wall of second cylinder are to pushing away The progress of power bearing is radially spacing, and the end cap boss, internal projecting ring end face and 3rd sleeve carry out axial limiting to thrust bearing;Institute State the first joint goed deep into first shell body, the valve body of valve seat and valve cup ring, second sleeve, the first cylinder, the first sleeve and The turbocharging assembly of turbo-power component is sequentially coaxially connected and is connected with the first inner walls;Second bottom of cylinder inwall It is connected with the outer wall of valve disc dome platform, is formed between top, 3rd sleeve, internal projecting ring and the second cylinder of the valve disc dome platform Second cavity;The valve disc body is inserted in the second through hole, and the outer wall of the valve disc bulge loop is connected with valve cup ring inwall, the valve Seat ring is connected by second sleeve with the first cylinder, described in the first through hole of the first main shaft boss insertion end cap body The top surface of end cap body and the second main shaft boss bottom surface gap coordinate, and the side wall of the turbine spindle is provided with and the first cavity phase The spindle hole of connection;The fluid passage of the turbocharging assembly, the inner chamber of the first sleeve, ring cavity, the inner chamber of second sleeve, One waist-shaped hole, the second waist-shaped hole formation high pressure communicating passage;The inner chamber of the turbine spindle, spindle hole, the first cavity, low pressure hole With the second cavity formation low pressure communication passage.
The three-dimensional bumper jar of a kind of nearly drill bit of the present utility model is produced by being coaxially disposed valve disc and valve seat in power sub Periodic pressure pulse so that bumper jar vertically wriggle radially dither simultaneously by periodical high-frequency, makes down-hole equipment group Acute variation occurs for the Frotteurism closed between the borehole wall, makes drill string elasticity send the growth rate of the instantaneous coefficient of sliding friction of brill to show Reduction is write, so as to reduce frictional resistance, improve drill bit efficiency of breaking rock.Valve disc and pressure are coaxially arranged with power sub simultaneously Balance system fixing end, can significantly reduce thrust bearing load, so as to extend the three-dimensional bumper jar making in drilling engineering Use the life-span.
Brief description of the drawings
Fig. 1 is the structural representation of three-dimensional bumper jar of the present utility model;
The enlarged drawing that Fig. 2 is I in Fig. 1;
The enlarged drawing that Fig. 3 is II in Fig. 1;
Fig. 4 A, 4B are the structural representation and left view of bearing (ball) cover;
Fig. 5 A, 5B are respectively the structural representation and right view of pressure balancing system fixing end;
Fig. 6 A are the structural representation of valve disc;
Fig. 6 B, 6C be respectively A in Fig. 6 A to, B to structural representation;
Fig. 7 A are the structural representation of valve seat;
The profile that Fig. 7 B are A-A in Fig. 7 A;
The enlarged drawing that Fig. 8 is III in Fig. 1;
Fig. 9 is the structural representation of connecting shaft.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated, it will be appreciated that specific embodiment described herein is only to explain The utility model, is not used to limit the utility model.
The utility model provides a kind of nearly drill bit three-dimensional bumper jar, and its structure is as shown in figure 1, including being coaxially disposed and successively Power sub 1, transition joint 2 and the vibration pipe nipple 3 of connection.Wherein, vibration pipe nipple 3 and power sub 1 respectively with transition joint 2 Two ends threaded connection.
As shown in Fig. 2 power sub 1 includes the first housing 1.1, one end of the first housing 1.1 is connected with transition joint 2, The other end of first housing 1.1 is connected with the first joint 1.11 goed deep into it.The inside of first housing 1.1 is provided with turbo-power group Part 1.2.Turbo-power component 1.2 includes the turbine spindle 1.2.1 and the whirlpool being centered around outside turbine spindle 1.2.1 positioned at center Wheel supercharging assembly.Turbine spindle 1.2.1 sides wall is provided with the first main shaft boss 1.2.1.1 and the second main shaft boss 1.2.1.2.The Two main shaft boss 1.2.1.2 radial dimensions are more than the first main shaft boss 1.2.1.1.
As shown in Figures 2 and 3, it is additionally provided with the first sleeve being coaxially disposed with turbine spindle 1.2.1 inside the first housing 1.1 1.3rd, bearing (ball) cover 1.4, thrust bearing 1.5, pressure balancing system fixing end 1.6, second sleeve 1.7, valve disc 1.8, valve seat 1.9 With 3rd sleeve 1.10.
Wherein, the structure of bearing (ball) cover 1.4 is as shown in Fig. 4 A, 4B, including coaxial sleeve is located at the first main shaft boss 1.2.1.1 On end cap body 1.4.1, be arranged at the end cap boss 1.4.2 of end cap body 1.4.1 bottoms, along end cap body 1.4.1 sides wall The end cap projection 1.4.3 being circumferentially uniformly arranged and the first through hole located at end cap body 1.4.1 and end cap boss 1.4.2 centers 1.4.4。
The structure of pressure balancing system fixing end 1.6 is as shown in Fig. 5 A, 5B, including the first circle being coaxially disposed from outside to inside Cylinder 1.6.1 and the second cylinder 1.6.2.Ring cavity 1.6.4 is provided between first cylinder 1.6.1 and the second cylinder 1.6.2.Second cylinder 1.6.2 inwall is provided with internal projecting ring 1.6.3.Annular groove 1.6.5 is provided with the top of internal projecting ring 1.6.3 inner ring.
The structure of valve disc 1.8 is as shown in Fig. 6 A, 6B, 6C, including the valve disc body that coaxial sleeve is located at outside turbine spindle 1.2.1 1.8.1.Valve disc body 1.8.1 one end is coaxially provided with valve disc dome platform 1.8.2.Valve disc dome platform 1.8.2 end surface symmetric is set There is low pressure hole 1.8.5.Valve disc body 1.8.1 is with being provided with the first cavity 1.8.6 being connected in valve disc dome platform 1.8.2.First Cavity 1.8.6 accommodates turbine spindle 1.2.1 and is connected with low pressure hole 1.8.5.It is coaxial in the middle part of valve disc body 1.8.1 side wall Provided with valve disc bulge loop 1.8.3.Valve disc bulge loop 1.8.3 end face is provided with the first waist-shaped hole 1.8.4.
The structure of valve seat 1.9 is as shown in Fig. 7 A, 7B, including center is provided with the second through hole 1.9.5 valve body 1.9.1.Valve Pedestal 1.9.1 top is provided with valve cup ring 1.9.4.The second waist-shaped hole is provided with valve body 1.9.1 on the outside of the second through hole 1.9.5 1.9.3.Separated between second through hole 1.9.5 and the second waist-shaped hole 1.9.3 by arc 1.9.2.Second through hole 1.9.5 and Two waist-shaped hole 1.9.3 are connected with the cavity in valve cup ring 1.9.4 respectively.
Specifically, as shown in Figures 2 and 3, the first cylinder 1.6.1 outer wall is connected with the inwall of the first housing 1.1, the first cylinder 1.6.1 two ends are connected with the first sleeve 1.3 and second sleeve 1.7 respectively.One end of the second cylinder 1.6.2 respectively with end Lid body 1.4.1 bottom surfaces and end cap boss 1.4.2 sides wall offset.In the outer wall and internal projecting ring 1.6.3 of the 3rd sleeve 1.10 Side wall is connected, and the inwall of the 3rd sleeve 1.10 is connected with turbine spindle 1.2.1 outer walls, the two ends of the 3rd sleeve 1.10 It is connected respectively with valve disc dome platform 1.8.2 ends and thrust bearing 1.5.The inwall and turbine spindle of the second cylinder 1.6.2 1.2.1 outer wall carries out radially spacing, the end cap boss 1.4.2, internal projecting ring 1.6.3 end faces and the 3rd set to thrust bearing 1.5 1.10 pairs of thrust bearings 1.5 of cylinder carry out axial limiting.First joint 1.11 goed deep into the first housing 1.1, valve seat 1.9 Valve body 1.9.1 and valve cup ring 1.9.4, second sleeve 1.7, the first cylinder 1.6.1, the first sleeve 1.3 and turbo-power component 1.2 turbocharging assembly is sequentially coaxially connected and is connected with the inwall of the first housing 1.1.Second cylinder 1.6.2 bottom interior walls It is connected with valve disc dome platform 1.8.2 outer wall.The top of the valve disc dome platform 1.8.2,3rd sleeve 1.10, internal projecting ring 1.6.3 the second cavity 1.12 is formed between the second cylinder 1.6.2.The valve disc body 1.8.1 inserts the second through hole 1.9.5 In.The outer wall of the valve disc bulge loop 1.8.3 is connected with valve cup ring 1.9.4 inwalls.Valve cup ring 1.9.4 by second sleeve 1.7 with First cylinder 1.6.1 is connected.In the first through hole 1.4.4 of the first main shaft boss 1.2.1.1 insertion end cap bodies 1.4.1. The top surface of the end cap body 1.4.1 and the second main shaft boss 1.2.1.2 bottom surfaces gap coordinate.The turbine spindle 1.2.1's Side wall is provided with the spindle hole 1.2.1.3 being connected with the first cavity 1.8.6.The fluid passage of the turbocharging assembly, The inner chamber of one sleeve 1.3, ring cavity 1.6.4, the inner chamber of second sleeve 1.7, the first waist-shaped hole 1.8.4, the second waist-shaped hole 1.9.3 shapes Into high pressure communicating passage.The inner chamber of the turbine spindle 1.2.1, spindle hole 1.2.1.3, the first cavity 1.8.6, low pressure hole 1.8.5 with the second cavity 1.12 formation low pressure communication passage.When the low pressure communication passage can prevent that drilling fluid area of passage is minimum System produces the phenomenon that builds the pressure.
In addition, valve disc 1.8 is pressed simultaneously as pressure balancing system by pressure side with the formation of pressure balancing system fixing end 1.6 Force balancing system.As shown in figure 3, the first waist-shaped hole 1.8.4 of valve disc 1.8, the inner chamber of second sleeve 1.7, pressure balancing system The inner chamber of the ring cavity 1.6.4 formation pressure balancing systems of fixing end 1.6.Drilling fluid enters the inner chamber of pressure balancing system, is formed Highly pressurised liquid.Highly pressurised liquid is acted on the valve disc dome platform 1.8.2 bottom end face of valve disc 1.8.Meanwhile, drilling fluid is through low pressure Communicating passage enters the second cavity 1.12, forms low pressure liquid.The interaction of highly pressurised liquid and low pressure liquid forms pressure difference, energy Reduce the load of thrust bearing 1.5, so as to extend the life-span of whole device.
As illustrated in fig. 1 and 2, turbocharging assembly, which includes being fixed on turbine spindle 1.2.1, deviates from end cap body 1.4.1 mono- The turbine shaft end cap 1.2.2 at end, and axially set gradually along turbine spindle 1.2.1 outer walls upper alignment bearing 1.2.3, turbine Group 1.2.4, lower alignment bearing 1.2.5.The top of the inner ring and outer rings of the upper alignment bearing 1.2.3 respectively with turbine shaft end cap 1.2.2 leant with transition joint 2.The outer shroud of the lower alignment bearing 1.2.5 and the bottom of inner ring respectively with the first sleeve 1.3 Offseted with the second main shaft boss 1.2.1.2.Wherein, single turbine includes turbine stator and turbine rotor, whirlpool in turbine group 1.2.4 Wheel rotor is fixedly connected with turbine spindle 1.2.1.
As shown in figs. 1 and 8, vibration pipe nipple 3 includes inserting for the second connected housing 3.1 of the top of transition joint 2 insertion, bottom Enter the adapter sleeve 3.2 of the second housing 3.1.The inside of second housing 3.1 is provided with the connecting shaft 3.3 coaxial with turbine spindle 1.2.1.
As shown in figure 9, connecting shaft 3.3 includes the first beam barrel 3.3.1 that radius gradually increases and set gradually vertically, the Two beam barrel 3.3.2, the 3rd beam barrel 3.3.3 and the 4th beam barrel 3.3.4.As shown in figure 8, the first beam barrel 3.3.1 wall coaxial by Under to being above sequentially provided with connecting shaft axle sleeve 3.4, first piston thrust bush 3.5 and piston ring 3.6.The second beam barrel 3.3.2 Bottom surface is the seam face of piston ring 3.6.The outer wall of the piston ring 3.6 coordinates with the inwall of the second housing 3.1 and is connected.Described second Beam barrel 3.3.2 outer wall is coaxially provided with second piston thrust bush 3.7 and spring 3.8 from down to up.The second piston thrust The two ends of sleeve 3.7 are connected with piston ring 3.6 and the bottom of spring 3.8 respectively.The top surface and the 3rd beam barrel of the spring 3.8 3.3.3 bottom surface offsets.Coordinate phase provided with outer wall and the second housing 3.1 between the 3rd beam barrel 3.3.3 and the second housing 3.1 4th sleeve 3.9 even.The top of spring 3.8 is connected by 4th sleeve 3.9 with the bottom of adapter sleeve 3.2.The adapter sleeve 3.2 middle part outer wall is coaxial with the outer wall of the second housing 3.1 to be set.The outer wall of the 4th beam barrel 3.3.4 and the second housing of insertion 3.1 bottom interior wall of adapter sleeve 3.2 is connected.As shown in figure 9, the internal diameter of the 4th beam barrel 3.3.4 is more than the 3rd beam barrel 3.3.3 Beam barrel seam face 3.3.5 is provided between internal diameter and the 4th beam barrel 3.3.4 inwalls and the 3rd beam barrel 3.3.3 inwalls.The adapter sleeve What 3.2 inner chambers sequentially passed through the beam barrel 3.3.4 inner chambers of adapter sleeve 3.2 and the 4th provided with bottom and were connected with beam barrel seam face 3.3.5 Second joint 3.10.The adapter sleeve 3.2 is bonded with the second joint 3.10 and connect.Second housing 3.1, first piston thrust sleeve Cylinder 3.5, piston ring 3.6, second piston thrust bush 3.7, spring 3.8 and the one Bidirectional power cylinder knot of formation of 4th sleeve 3.9 Structure.
As shown in figure 8, the side wall of the 4th sleeve 3.9 is provided with third through-hole 3.9.1.Second housing 3.1 Side wall is provided with fourth hole 3.1.1.The third through-hole 3.9.1 is connected with fourth hole 3.1.1, forms cylinder small Hole.Cylindrical holes are used to the drilling fluid for leaking into the space of spring 3.8 excluding drill string annular space.
Wherein, the spring 3.8 is disc spring group.The adapter sleeve 3.2 is connected with the spline of the second joint 3.10.
The three-dimensional bumper jar of a kind of nearly drill bit of the present utility model is made up of simple metal element, high temperature resistant and wear resistance By force, long working life, makes well track obtain oriented control, and extends the service life of instrument, reduces and makes a trip time Number, has saved drilling cost.
When in use, the second joint 3.10 is connected the three-dimensional bumper jar of a kind of nearly drill bit of the present utility model with drilling rod, and first Joint 1.11 is connected with drill string and drill bit.During work, inner chamber of the drilling fluid through the second joint 3.10, the inner chamber of connecting shaft 3.3 are entered Enter inside bumper jar, fluid passage, the inner chamber of the first sleeve 1.3, ring cavity 1.6.4 then through turbocharging assembly, second set The inner chamber of cylinder 1.7, the first waist-shaped hole 1.8.4, the second waist-shaped hole 1.9.3 outflow bumper jars.The high pressure well liquid flowed into inside drilling rod Turbine rotor rotation is driven, the concentric rotational movement around turbine central axis is formed, so that the kinetic energy of cleaner for high-pressure drilling fluid be converted For the mechanical energy rotated at a high speed, and pressure balancing system is delivered to by pressure side or valve disc 1.8 by turbine spindle 1.2.1.Due to Valve disc 1.8 is two effect partials of same part by pressure side with pressure balancing system, so turbine spindle 1.2.1 will drive The superhigh speed of valve disc 1.8 1 rotates.Because valve seat 1.9 is fixed, when valve disc 1.8 rotates at a high speed, the first waist-shaped hole of valve disc 1.8 1.8.4 it is overlapping with the second waist-shaped hole 1.9.3 on valve seat 1.9, makes drilling fluid by valve disc 1.8 and valve seat 1.9 The circulation area generating period change of the rotary valve of formation, so that the flow stream pressure generating period of the upstream of valve disc 1.8 becomes Change, that is, generate pressure pulse.
When the area of passage change between valve disc 1.8 and valve seat 1.9 is small, the upstream pressure rise of rotary valve.Work as flow-passing surface When product is minimum, i.e., when the first waist-shaped hole 1.8.4 of valve disc 1.8 does not have overlapping with the second waist-shaped hole 1.9.3 on valve seat 1.9, The upstream high flow stream pressure of rotary valve reaches maximum.Great flow stream pressure is acted on piston 3.6 and connecting shaft 3.3, Make disc spring group 3.8 compress and the high pressure kinetic energy of drilling fluid is changed into disc spring potential energy to be stored.The compression campaign of disc spring group 3.8 Drill bit is transmitted motion to by the housing of bumper jar of the present utility model, bottomhole is moved downward.
When the area of passage change between valve disc 1.8 and valve seat 1.9 is big, the pressure reduction of the transition joint side of rotary valve. When area of passage is maximum, i.e., when the first waist-shaped hole 1.8.4 and the second waist-shaped hole 1.9.3 on valve seat 1.9 of valve disc 1.8 are complete When overlapping, the upstream high flow stream pressure of rotary valve reaches minimum.Because the pressure of the drill is more than flow stream pressure minimum, so preceding place Released energy in the disc spring group 3.8 of compressive state, disc spring group 3.8 extends and transmits motion to brill by the housing of bumper jar Head, makes drill bit move upwards.
Because turbine can provide stable rotary motion under cleaner for high-pressure drilling fluid effect so that rotary valve has certain week Phase, under periodic pressure impulse action, a kind of three-dimensional bumper jar of nearly drill bit of the present utility model generates the cycle vertically Property high frequency wriggle, the friction condition between drill string and the borehole wall is changed, drill string elasticity send the instantaneous coefficient of sliding friction of brill Growth rate reduction so that reduce frictional resistance, improve rate of penetration.Meanwhile, by the way that cleaner for high-pressure drilling fluid is introduced into pressure balance system System inner chamber, flow stream pressure is acted on bottom end face of the pressure balance by pressure side or the valve disc dome platform 1.8.2 of valve disc 1.8, together When drilling fluid enter the second cavity 1.12 in, formed low pressure liquid.The interaction of highly pressurised liquid and low pressure liquid forms pressure difference, The load of bearing is reduced, so as to extend the working life of bearing.And the service life of bottomhole is depended primarily on and made The operating time of bearing, thus pressure balancing system extends the service life of bumper jar of the present utility model.
Wherein, the three-dimensional bumper jar of a kind of nearly drill bit of the present utility model, is typically mounted near drill bit when actually used, Axial high frequency itself is produced under the driving effect of cleaner for high-pressure drilling fluid to wriggle, and because the utility model has used a kind of Concentric rotation Asymmetric valve arrangement, itself axial high frequency can be made to produce the radial vibration of high frequency while wriggling.Its axial high frequency is wriggled It is sliding friction state by the static friction state change between drill string and the borehole wall.Meanwhile, the drop of its radial direction dither cycle Low normal pressure between drill string and the borehole wall.The common influence of both effects hinders the friction between bottom hole assemblies and the borehole wall The growth rate of power is significantly reduced, and can significantly reduce frictional resistance, is prevented to drag pressure phenomenon, is improved the effect of load transfer Really, improve rate of penetration, save drilling cost.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model Within new spirit and principle, any modifications, equivalent substitutions and improvements made etc. should be included in guarantor of the present utility model Within the scope of shield.

Claims (6)

1. a kind of three-dimensional bumper jar of nearly drill bit, including be coaxially disposed and be sequentially connected power sub (1), transition joint (2) and Vibrate pipe nipple (3);Power sub (1) includes the first housing (1.1), and one end and the transition joint (2) of the first housing (1.1) connect Connect, the other end of the first housing (1.1) is connected with the first joint (1.11) goed deep into it;It is provided with inside first housing (1.1) Turbo-power component (1.2), turbo-power component (1.2) includes being located at the turbine spindle (1.2.1) at center and is centered around turbine The outside turbocharging assembly of main shaft (1.2.1), turbine spindle (1.2.1) side wall is provided with the first main shaft boss (1.2.1.1) With the second main shaft boss (1.2.1.2), the second main shaft boss (1.2.1.2) radial dimension is more than the first main shaft boss (1.2.1.1), it is characterised in that:
The first sleeve (1.3) being coaxially disposed with turbine spindle (1.2.1), bearing (ball) cover are additionally provided with inside first housing (1.1) (1.4), thrust bearing (1.5), pressure balancing system fixing end (1.6), second sleeve (1.7), valve disc (1.8), valve seat (1.9) With 3rd sleeve (1.10);
Bearing (ball) cover (1.4) includes end cap body (1.4.1), the setting that coaxial sleeve is located on the first main shaft boss (1.2.1.1) End cap boss (1.4.2) in end cap body (1.4.1) bottom, the end being circumferentially uniformly arranged along end cap body (1.4.1) side wall Lid raised (1.4.3) and the first through hole (1.4.4) located at end cap body (1.4.1) and end cap boss (1.4.2) center;
Pressure balancing system fixing end (1.6) includes the first cylinder (1.6.1) and the second cylinder being coaxially disposed from outside to inside (1.6.2), is provided with ring cavity (1.6.4), second cylinder between first cylinder (1.6.1) and the second cylinder (1.6.2) (1.6.2) inwall is provided with the top of internal projecting ring (1.6.3), internal projecting ring (1.6.3) inner ring and is provided with annular groove (1.6.5);
Valve disc (1.8) includes coaxial sleeve and is located at the valve disc body (1.8.1) of turbine spindle (1.2.1) outside, valve disc body (1.8.1) One end be coaxially provided with valve disc dome platform (1.8.2), the end surface symmetric of valve disc dome platform (1.8.2) is provided with low pressure hole (1.8.5), The valve disc body (1.8.1) is with being provided with the first cavity (1.8.6) being connected, described first in valve disc dome platform (1.8.2) Cavity (1.8.6) accommodates turbine spindle (1.2.1) and is connected with low pressure hole (1.8.5);The side wall of valve disc body (1.8.1) Middle part is coaxially provided with valve disc bulge loop (1.8.3), and the end face of the valve disc bulge loop (1.8.3) is provided with the first waist-shaped hole (1.8.4);
Valve seat (1.9) includes the valve body (1.9.1) that center is provided with the second through hole (1.9.5), the top of the valve body (1.9.1) Portion is provided with valve cup ring (1.9.4), the valve body (1.9.1) is provided with the second waist-shaped hole on the outside of the second through hole (1.9.5) (1.9.3), is separated between second through hole (1.9.5) and the second waist-shaped hole (1.9.3) by arc (1.9.2), described Second through hole (1.9.5) and the second waist-shaped hole (1.9.3) are connected with the cavity in valve cup ring (1.9.4) respectively;
Wherein, the outer wall of the first cylinder (1.6.1) is connected with the first housing (1.1) inwall, the two ends point of the first cylinder (1.6.1) It is not connected with the first sleeve (1.3) and second sleeve (1.7);One end of second cylinder (1.6.2) respectively with end cap body (1.4.1) bottom surface and end cap boss (1.4.2) side wall offset;The outer wall of the 3rd sleeve (1.10) and internal projecting ring (1.6.3) Madial wall is connected, and the inwall of the 3rd sleeve (1.10) is connected with turbine spindle (1.2.1) outer wall, the 3rd sleeve (1.10) two ends are connected with valve disc dome platform (1.8.2) end and thrust bearing (1.5) respectively, second cylinder (1.6.2) Inwall and turbine spindle (1.2.1) outer wall thrust bearing (1.5) is carried out it is radially spacing, it is the end cap boss (1.4.2), interior Bulge loop (1.6.3) end face and 3rd sleeve (1.10) carry out axial limiting to thrust bearing (1.5);It is described to go deep into the first housing (1.1) valve body (1.9.1) of the first joint (1.11), valve seat (1.9) in and valve cup ring (1.9.4), second sleeve (1.7), the turbocharging assembly of the first cylinder (1.6.1), the first sleeve (1.3) and turbo-power component (1.2) is sequentially coaxially It is connected and is connected with the first housing (1.1) inwall;Second cylinder (1.6.2) bottom interior wall and valve disc dome platform (1.8.2) Outer wall is connected, top, 3rd sleeve (1.10), internal projecting ring (1.6.3) and the second cylinder of the valve disc dome platform (1.8.2) The second cavity (1.12) is formed between (1.6.2);The valve disc body (1.8.1) is inserted in the second through hole (1.9.5), the valve The outer wall of disk bulge loop (1.8.3) is connected with valve cup ring (1.9.4) inwall, and the valve cup ring (1.9.4) passes through second sleeve (1.7) It is connected with the first cylinder (1.6.1), the first through hole of the first main shaft boss (1.2.1.1) insertion end cap body (1.4.1) In (1.4.4), the top surface of the end cap body (1.4.1) and second main shaft boss (1.2.1.2) bottom surface gap coordinate, the whirlpool The side wall of wheel main shaft (1.2.1) is provided with the spindle hole (1.2.1.3) being connected with the first cavity (1.8.6);The turbine increases The fluid passage of pressure assembly, the inner chamber of the first sleeve (1.3), ring cavity (1.6.4), the inner chamber of second sleeve (1.7), the first waist type Hole (1.8.4), the second waist-shaped hole (1.9.3) formation high pressure communicating passage;The inner chamber of the turbine spindle (1.2.1), spindle hole (1.2.1.3), the first cavity (1.8.6), low pressure hole (1.8.5) and the second cavity (1.12) formation low pressure communication passage.
2. the three-dimensional bumper jar of a kind of nearly drill bit according to claim 1, it is characterised in that:The turbocharging assembly includes It is fixed on turbine spindle (1.2.1) and deviates from the turbine shaft end cap (1.2.2) of end cap body (1.4.1) one end, and along turbine Upper alignment bearing (1.2.3) that main shaft (1.2.1) outer wall is axially set gradually, turbine group (1.2.4), lower alignment bearing (1.2.5), the tops of the inner ring and outer rings of the upper alignment bearing (1.2.3) respectively with turbine shaft end cap (1.2.2) and centre Joint (2) leans;The outer shroud of the lower alignment bearing (1.2.5) and the bottom of inner ring respectively with the first sleeve (1.3) and Two main shaft boss (1.2.1.2) offset.
3. the three-dimensional bumper jar of a kind of nearly drill bit according to claim 1, it is characterised in that:The vibration pipe nipple (3) includes Connected the second housing (3.1), bottom, which are inserted, for transition joint (2) top inserts the adapter sleeve (3.2) of the second housing (3.1); The inside of second housing (3.1) is provided with the connecting shaft (3.3) coaxial with turbine spindle (1.2.1), and connecting shaft (3.3) includes radius The first beam barrel (3.3.1) for gradually increasing and setting gradually vertically, the second beam barrel (3.3.2), the 3rd beam barrel (3.3.3) and the Four beam barrels (3.3.4);The wall coaxial of first beam barrel (3.3.1) is sequentially provided with connecting shaft axle sleeve (3.4), the first work from down to up Thrust bush (3.5) and piston ring (3.6) are filled in, the second beam barrel (3.3.2) bottom surface is the seam face of piston ring (3.6), institute The outer wall for stating piston ring (3.6) is connected with the cooperation of the second housing (3.1) inwall;The outer wall of second beam barrel (3.3.2) is under To being above coaxially provided with second piston thrust bush (3.7) and spring (3.8), the two ends of the second piston thrust bush (3.7) It is connected respectively with piston ring (3.6) and spring (3.8) bottom, the top surface of the spring (3.8) and the bottom of the 3rd beam barrel (3.3.3) Face offsets;Coordinate between 3rd beam barrel (3.3.3) and the second housing (3.1) provided with outer wall with the second housing (3.1) and be connected 4th sleeve (3.9), the top of the spring (3.8) is connected by 4th sleeve (3.9) with adapter sleeve (3.2) bottom;Institute State the middle part outer wall setting coaxial with the second housing (3.1) outer wall of adapter sleeve (3.2);The outer wall of 4th beam barrel (3.3.4) Be connected with adapter sleeve (3.2) bottom interior wall of the second housing of insertion (3.1), the internal diameter of the 4th beam barrel (3.3.4) is more than the Beam barrel seam is provided between three beam barrels (3.3.3) internal diameter and the 4th beam barrel (3.3.4) inwall and the 3rd beam barrel (3.3.3) inwall Face (3.3.5), adapter sleeve (3.2) inner chamber is sequentially passed through in adapter sleeve (3.2) and the 4th beam barrel (3.3.4) provided with bottom Chamber and the second joint (3.10) being connected with beam barrel seam face (3.3.5), the adapter sleeve (3.2) and the second joint (3.10) It is bonded and connects, second housing (3.1), first piston thrust bush (3.5), piston ring (3.6), second piston thrust bush (3.7), spring (3.8) and 4th sleeve (3.9) one Bidirectional power cylinder structure of formation.
4. the three-dimensional bumper jar of a kind of nearly drill bit according to claim 3, it is characterised in that:The 4th sleeve (3.9) Side wall is provided with third through-hole (3.9.1), and the side wall of second housing (3.1) is provided with fourth hole (3.1.1), and described the Three through holes (3.9.1) are connected with fourth hole (3.1.1).
5. the three-dimensional bumper jar of a kind of nearly drill bit according to claim 3, it is characterised in that:The spring (3.8) is disc spring Group.
6. the three-dimensional bumper jar of a kind of nearly drill bit according to claim 3, it is characterised in that:The adapter sleeve (3.2) and the Two joints (3.10) spline is connected.
CN201621376117.0U 2016-12-14 2016-12-14 A kind of three-dimensional bumper jar of nearly drill bit Withdrawn - After Issue CN206338036U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106593308A (en) * 2016-12-14 2017-04-26 长江大学 Near-bit three-dimensional jar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106593308A (en) * 2016-12-14 2017-04-26 长江大学 Near-bit three-dimensional jar

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