CN109138888A - Oil drilling waterpower low frequency impact device - Google Patents
Oil drilling waterpower low frequency impact device Download PDFInfo
- Publication number
- CN109138888A CN109138888A CN201811207390.4A CN201811207390A CN109138888A CN 109138888 A CN109138888 A CN 109138888A CN 201811207390 A CN201811207390 A CN 201811207390A CN 109138888 A CN109138888 A CN 109138888A
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- China
- Prior art keywords
- jumper bar
- valve
- piston
- living
- spool
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 48
- 230000000694 effects Effects 0.000 description 12
- 230000006872 improvement Effects 0.000 description 9
- 238000009527 percussion Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
Abstract
The present invention relates to a kind of oil drilling waterpower low frequency impact devices, including top connection, outer cylinder, accumulator, valve, upper anvil, lower contact living, upper anvil is screwed between outer cylinder and lower contact, the middle part inner wall of lower contact is equipped with lower hammering block, jumper bar is plugged in the inner hole of upper anvil, the lower end of jumper bar is screwed with block stamp, and block stamp is located between upper anvil and lower hammering block；The upper end of jumper bar is equipped with valve living, and valve living is located in valve housing living, and valve housing living is screwed between top connection and the upper port of outer cylinder.The upper end of jumper bar centre bore extends to the upper end opening of jumper bar；The upper end of jumper bar enlarged diameter section is equipped with the big flange collar of jumper bar and is equipped with big piston, and the jumper bar circumference between big piston locknut and upper anvil is equipped with jumper bar radial hole and connects with jumper bar centre bore.The top of diameter segment is equipped with the small flange collar of jumper bar and is equipped with small piston in jumper bar, and the above are jumper bar reduced diameter sections for small piston.The oil drilling is low with the manufacturing cost of waterpower low frequency impact device, reliable in action, long service life.
Description
Technical field
The present invention relates to a kind of unfreezing impactor, in particular to a kind of oil drilling waterpower low frequency impact device belongs to
Oil exploitation drilling tool technical field.
Background technique
It is affected by various factors in oil-water well production process, pipe sticking frequent occurrence.Not according to the type of bit freezing
Together, there are many processing schemes.In all processing schemes, hydraulic top jar unfreezing is relatively common one kind.Traditional is hydraulic
Top jar is based on single jarring, and after carrying out a jarring, bumper jar reset just can be carried out jarring next time.But certain
In special circumstances, it is desirable that lasting high frequency jarring, traditional bumper jar interval time is longer, and shock effect is often and unknown
It is aobvious.
Impactor using relatively broad, can generate high-frequency vibration in oil drilling.Drilling well impactor is general at present
Equipped with the hollow block stamp with piston, upper part is equipped with valve living.Mud is flowed to by the hammering block center of block stamp and block stamp lower connector
Drill bit.Spring on block stamp forces hammer contact valve to close block stamp center flow channels, and block stamp is together with valve under the effect of top mud pressure
High-speed downstream, impacts hammering block and drill bit, valve living since journey stop gear is first opened and uplink homing under the action of the spring,
Then block stamp is gone upward at valve under hammering block rebound and spring-force driven dual, is started to pump, is produced the high frequency of drill bit
Impact.
For traditional high-frequency percussion device due to that need to use spring, liquid energy transfer efficiency is low.Spring easy fracture in vibration repeatedly,
Typical seal is generally used on block stamp, under the conditions of high-speed motion, intensity is low, the service life is short.
Summary of the invention
It is an object of the present invention to overcome the problems, such as that spring easy fracture existing in the prior art, sealing element are easy to damage, mention
For a kind of oil drilling waterpower low frequency impact device, manufacturing cost is low, reliable in action, long service life.
In order to solve the above technical problems, a kind of oil drilling of the invention waterpower low frequency impact device, including it is top connection, outer
Cylinder, upper anvil and lower contact, the upper end periphery of the upper anvil is screwed in the lower port of the outer cylinder, under the upper anvil
End periphery is screwed in the upper port of the lower contact, and the middle part inner wall of the lower contact is equipped with the interior step as lower hammering block,
The jumper bar of clearance fit is plugged in the inner hole of the upper anvil, the lower end of the jumper bar is screwed with block stamp, and the block stamp is located at
Between upper anvil and lower hammering block；The upper end of the jumper bar is equipped with the work valve of control jumper bar, and the valve living includes valve housing living, described
Valve housing living is screwed between the top connection and the upper port of the outer cylinder.
Compared with the existing technology, the present invention achieves following the utility model has the advantages that when valve living is opened, under a fixed displacement, water
When stream passes through the clearance between jumper bar and upper anvil, certain chock pressure difference can be generated, it is hydraulic so that jumper bar above upper anvil
Uplink, when the upper end of jumper bar is contacted with valve living, valve living closes the upper port of jumper bar, and liquid stream is blocked, and generates water hammer；
Under effect of inertia, block stamp continues uplink, hits upper anvil, vibrates tubing string.At the end of uplink, in water flow and from recast
Under, jumper bar and block stamp it is quick under return, with the lower hammering block in biggish kinetic energy impact lower contact, complete downward percussion action, this
When jumper bar upper port be detached from valve living again.In this way, block stamp is ceaselessly reciprocating between upper anvil and lower hammering block, make by
Card tubing string vibrates, and realizes unfreezing purpose.
As an improvement of the present invention, the jumper bar presents carefully lower coarse-texture, the axis along jumper bar and is equipped with rushing for lower end closed
The upper end of bar centre bore, the jumper bar centre bore extends to the upper end opening of jumper bar；Jumper bar enlarged diameter section is from the upper anvil
It is stretched out upwards in inner hole, the upper end of the jumper bar enlarged diameter section is equipped with the big flange collar of jumper bar outwardly protruded, the big flange collar of jumper bar
Lower section big piston is installed, the periphery of the big piston is fitted in the inner wall of outer cylinder large aperture section, the lower section of the big piston
It is pressed with big piston locknut, the big piston locknut is screwed on the external screw thread of the jumper bar enlarged diameter section, the big piston locknut
Lower end surface and the upper anvil upper surface between jumper bar enlarged diameter section circumference on be symmetrically arranged with jumper bar radial hole, it is described
Jumper bar radial hole connects with the jumper bar centre bore.When the upper port of jumper bar is detached from valve living, liquid stream enters jumper bar centre bore
And downlink, it is flowed outward from jumper bar radial hole, into the annular space of big piston cavity of resorption, hydraulic action is in the lower end of big piston
Face pushes big piston driving jumper bar uplink, and when the upper end of jumper bar is contacted with valve living, valve living closes the upper port of jumper bar, liquid
Stream is blocked, and generates water hammer；Under effect of inertia, block stamp continues uplink, hits upper anvil, vibrates tubing string.Punching
After the liquid stream of bar centre bore is blocked, the hydraulic rapid decline of big piston cavity of resorption, under water flow and Gravitative Loads, jumper bar and block stamp
It is returned under quickly, with the lower hammering block in biggish kinetic energy impact lower contact, completes downward percussion action, the upper port of jumper bar is again at this time
Secondary disengaging valve living.
As a further improvement of the present invention, the top of the big flange collar of the jumper bar is diameter segment in jumper bar, in the jumper bar
The top of diameter segment is equipped with the small flange collar of jumper bar outwardly protruded, and the top of the small flange collar of jumper bar is jumper bar reduced diameter section, described
The top of the small flange collar of jumper bar is equipped with small piston, and the periphery of the small piston is fitted in the inner wall of outer cylinder small-bore section, described small
Small piston locknut is pressed with above piston, the small piston locknut is screwed on the external screw thread of the jumper bar reduced diameter section.Work as punching
When the upper port of bar and valve living are in contact condition, the liquid stream of jumper bar centre bore is blocked, and the liquid stream of jumper bar periphery acts on small
The upper surface of piston pushes jumper bar downlink, while under the Gravitative Loads of jumper bar and block stamp, block stamp is under biggish kinetic energy impact
Hammering block completes downward percussion action, vibrates tubing string.The upper port of jumper bar has disengaged from valve living at this time, a part of liquid stream into
Enter jumper bar centre bore and downlink, is flowed outward from jumper bar radial hole, into the annular space of big piston cavity of resorption, act on big piston
Lower end surface；Another part liquid stream still acts on the upper surface of small piston, since the area of big piston is greater than small piston, formation
Resultant force upwards, forces jumper bar uplink, and when the upper end of jumper bar is contacted with valve living, valve living closes the upper port of jumper bar, liquid stream quilt
It blocks, generates water hammer；Under effect of inertia, block stamp continues uplink, hits upper anvil, vibrates tubing string again.Such as
This, block stamp is ceaselessly reciprocating between upper anvil and lower hammering block, vibrates stuck pipe column, realizes unfreezing purpose.
Block stamp and valve living are resetted without the help of spring, reliable in action, long service life.
As a further improvement of the present invention, the lower lumen of the valve housing living is equipped with valve seat, the center of the valve seat
Valve base center hole equipped with upper end closed, spool is plugged in the valve base center hole, and the spool is in up-narrow and down-wide inverted T-shaped
Section；The lower end surface center of the spool is equipped with the spool groove that is recessed upwards, the bottom wall central of the spool groove be equipped with to
The annular region of the center spool counterbore of upper extension, the spool groove periphery is matched with the upper port of the jumper bar, described
Disc spring is supported by between the big end back side of spool and the lower end surface of the valve seat；The valve seat is close to the position of valve outer casing inner wall living
Equipped with along axially through work valve limbers.Spool groove reduces the working (finishing) area of valve core sealed cover, and center spool counterbore subtracts
The light weight of spool, is allowed to more nimble；The sectional area of spool lower end is larger, the liquid stream to flow downward from top connection centre bore
Across valve limbers living, acts on the step of spool, push spool downlink jointly with disc spring, spool is made to be pressed in the upper end of jumper bar
Mouthful, it is ensured that the reliable liquid stream for blocking jumper bar centre bore.When jumper bar is upward by the bigger lift return of big piston generation, punching
Bar touches valve core sealed cover again, and pushes spool uplink, and disc spring is compressed, on the one hand the elasticity of disc spring ensures spool and punching
The reliable contacts of bar upper port carry out energy storage when on the other hand being compressed, keep the downlink of spool stronger, and speed faster, adds
The speed hit under fast block stamp.
As a further improvement of the present invention, restricted spool is installed on the step of the outer cylinder small-bore section upper inside wall
The lower end of the limit sleeve of down stroke, the valve housing living is pressed on the limit sleeve, and the top of the jumper bar reduced diameter section is from institute
It states in the centre bore of limit sleeve and passes through, the limit sleeve is equipped with the limit sleeve sink that water supply stream passes through.When the upper port of jumper bar
When being in contact condition with valve living, the liquid stream of jumper bar centre bore is blocked, and the liquid stream of jumper bar periphery acts on the upper end of small piston
Face pushes jumper bar downlink, and disc spring pushes spool DL synchronization at this time, and the sealing surface of spool is made to keep the upper port for being fitted in jumper bar
On, block stamp is completed downward percussion action, vibrates tubing string with hammering block under biggish kinetic energy impact.When spool touches limit
Stop downlink when the set of position, jumper bar continues traveling downwardly completion impact under flow stream pressure, gravity and effect of inertia, at this time the upper end of jumper bar
Mouth is opened, and liquid stream enters jumper bar centre bore, and then enters the cavity of resorption of big piston quickly, and the lift that big piston generates is greater than small work
The resistance of plug makes jumper bar uplink, and when the upper end of jumper bar is contacted again with spool, valve living closes the upper port of jumper bar, liquid stream quilt
It blocks, generates water hammer；Under effect of inertia, block stamp continues uplink, hits upper anvil, vibrates tubing string again.
As a further improvement of the present invention, the top of the spool is equipped with valve core seal ring and the valve base center hole
It fits, the upper end of the valve base center hole is connected with the valve seat radial hole for extending radially outward and penetrating through, the valve seat diameter
Valve filter plug living is screwed with to the outer end in hole.Valve core seal ring makes spool upper end and valve base center hole realize sealing, when spool is upward
When mobile, the liquid stream in valve base center hole is pushed to filter plug discharge from valve seat radial hole and valve living；When spool moves down, liquid stream
After valve filter plug filtering living, enters valve base center hole from valve seat radial hole, fill into the epicoele of spool, can so reduce spool or more
Resistance when movement keeps the movement of valve living sensitiveer.
As a further improvement of the present invention, the lower part of the outer cylinder small-bore section is symmetrically arranged with the outer cylinder radially penetrated through
Filtration hole, the outer end of the outer cylinder filtration hole are screwed with outer cylinder filter plug respectively, and the outer cylinder filtration hole is located at institute in short transverse
It states between the small flange collar of jumper bar and the big flange collar of jumper bar.When big piston pushes jumper bar uplink, the volume of big piston upper chamber is gradually become smaller,
Liquid filters plug discharge from outer cylinder.When spool closes the upper port of jumper bar centre bore, and small piston pushes jumper bar downlink, big piston
Cavity of resorption decompression, clearance outflow of the liquid stream between jumper bar and upper anvil, the volume of big piston upper chamber becomes larger, external streams
After outer cylinder is filtered plug filtering, into big piston upper chamber.It so can reduce resistance when jumper bar upstream or downstream, make rushing for block stamp
It hits more strong.
As a further improvement of the present invention, the middle part periphery of the upper anvil is equipped with the upper anvil flange collar outwardly protruded,
The lower port of the outer cylinder is pressed in the upper surface of the upper anvil flange collar, and it is convex that the upper port of the lower contact is pressed in the upper anvil
The lower end surface of circle.Upper anvil flange collar is conducive to realize axially position between upper anvil and outer cylinder and lower contact, can be used after being screwed into bottom
Holding screw fixation prevents from loosening.
As a further improvement of the present invention, it is equipped with below the taper box thread of the top connection and to be protruded to axis direction
Top connection inner convex platform, the circumference of the top connection inner convex platform be equipped with multiple edges axially through top connection limbers, it is described on
The accumulator package extended downwardly is screwed in the inner hole of connector inner convex platform.Top connection limbers on top connection inner convex platform is kept
Liquid stream between top connection centre bore and piston is unimpeded, when jumper bar uplink, the liquid stream of small piston epicoele from valve limbers living to
Upper flowing makes valve seat epicoele generate high pressure, and hydraulic energy can be stored in accumulator package, when being hit under block stamp to increase
Kinetic energy.
As a further improvement of the present invention, the accumulator package includes top closed and lower ending opening accumulator cylinder
The lower port of body, the accumulator cylinder is screwed with accumulator screw head, and the axis along accumulator screw head is equipped in the screw head of perforation
Heart hole, the top of the accumulator screw head are equipped with the accumulator piston matched with accumulator cylinder inboard wall, and the accumulator is living
Accumulator spring is supported by between the top surface of plug and the roof of the accumulator cylinder.It is small when big piston pushes jumper bar uplink
The volume of piston upper chamber becomes smaller, and liquid stream enters valve seat epicoele by valve limbers living, increases the pressure of valve seat epicoele, accumulator
Piston uplink under hydraulic action, accumulator spring are compressed, and hydraulic energy transfer is the elastic potential energy of accumulator spring, are subtracted simultaneously
Resistance when small block stamp uplink, increase block stamp on hit impact force.After hitting in block stamp completion, the upper port of jumper bar is sealed by spool
It closes, makes the cavity of resorption decompression of big piston, liquid stream and gravitational force urges small piston downlink, accumulator spring pushes under accumulator piston at this time
Row increases the pressure to small piston, makes to hit under block stamp more strong.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, attached drawing only provide with reference to
Illustrate to use, it is non-to limit the present invention.
Fig. 1 is the main view of oil drilling waterpower low frequency impact device of the present invention.
Fig. 2 is the structural schematic diagram of block stamp component in Fig. 1.
Fig. 3 is the enlarged drawing of the upper half in Fig. 1.
Fig. 4 is the enlarged drawing of lower half in Fig. 1.
In figure: 1. top connections；1a. taper box thread；1b. top connection limbers；2. accumulator package；2a. accumulator cylinder
Body；2b. accumulator spring；2c. accumulator piston；2d. accumulator screw head；2d1. screw head centre bore；3. valve living；Outside 3a. valve living
Set；3b. valve seat；3b1. valve base center hole；3b2. work valve limbers；3b3. valve seat radial hole；3b4. valve filter plug living；3c. spool；
3c1. spool groove；3c2. center spool counterbore；3d. valve core seal ring；3e. disc spring；4. outer cylinder；4a. outer cylinder filter plug；5. limit
Set；5a. limit sleeve sink；6. jumper bar；6a. jumper bar reduced diameter section；The small flange collar of 6b. jumper bar；Diameter segment in 6c. jumper bar；6d. jumper bar
Big flange collar；6e. jumper bar enlarged diameter section；6f. jumper bar centre bore；6g. jumper bar radial hole；7. small piston；7a. small piston locknut；8.
Big piston；The big piston locknut of 8a.；9. block stamp；10. upper anvil；10a. upper anvil flange collar；11. lower contact；Hammering block under 11a.；
11b. taper male thread.
Specific embodiment
As shown in Figures 1 to 4, oil drilling waterpower low frequency impact device of the invention includes top connection 1, outer cylinder 4, upper anvil
Son 10 and lower contact 11, the upper end periphery of upper anvil 10 are screwed in the lower port of outer cylinder 4, and the lower end periphery of upper anvil 10 is screwed on
In the upper port of lower contact 11, the lower end of lower contact 11 is equipped with the taper male thread 11b connecting with lower section tubing string, lower contact 11
Middle part inner wall be equipped with interior step as lower hammering block 11a, the jumper bar 6 of clearance fit is plugged in the inner hole of upper anvil 10, is rushed
The lower end of bar 6 is screwed with block stamp 9, and block stamp 9 is located between upper anvil 10 and lower hammering block 11a；The upper end of jumper bar 6 is equipped with control jumper bar
6 work valve 3, valve 3 living include valve housing living, and valve housing living is screwed between top connection 1 and the upper port of outer cylinder 4.
The middle part periphery of upper anvil 10 is equipped with the upper anvil flange collar 10a outwardly protruded, and the lower port of outer cylinder 4 is pressed in upper anvil
The upper surface of flange collar 10a, the upper port of lower contact 11 are pressed in the lower end surface of upper anvil flange collar 10a.Upper anvil flange collar 10a is conducive to upper
Axially position is realized between hammering block 10 and outer cylinder 4 and lower contact 11, and being screwed into behind bottom can be used holding screw fixation and prevent from loosening.
When valve living is opened, under a fixed displacement, when water flow passes through the clearance between jumper bar 6 and upper anvil 10, can generate
Certain chock pressure difference, the top of upper anvil 10 hydraulic is so that 6 uplink of jumper bar, when the upper end of jumper bar 6 and valve living contact, valve living
The upper port of jumper bar 6 is closed, liquid stream is blocked, and generates water hammer；Under effect of inertia, block stamp 9 continues uplink, in shock
Hammering block 10, vibrates tubing string.At the end of uplink, under water flow and Gravitative Loads, jumper bar 6 and block stamp 9 quickly under return, with compared with
Lower hammering block 11a in big kinetic energy impact lower contact 11, completes downward percussion action, the upper port of jumper bar 6 is detached from again at this time
Valve living.In this way, block stamp 9 is ceaselessly reciprocating between upper anvil 10 and lower hammering block 11a, vibrate stuck pipe column,
Realize unfreezing purpose.
Jumper bar 6 presents carefully lower coarse-texture, and the jumper bar centre bore 6f of lower end closed, jumper bar center are equipped with along the axis of jumper bar 6
The upper end of hole 6f extends to the upper end opening of jumper bar 6；Jumper bar enlarged diameter section 6e stretches out upwards from the inner hole of upper anvil 10, jumper bar
The upper end of enlarged diameter section 6e is equipped with the big flange collar 6d of jumper bar outwardly protruded, is equipped with big piston 8 below the big flange collar 6d of jumper bar, greatly
The periphery of piston 8 is fitted in the inner wall of outer cylinder large aperture section, and the lower section of big piston 8 is pressed with big piston locknut 8a, big piston locknut
8a is screwed on the external screw thread of jumper bar enlarged diameter section 6e, between the lower end surface of big piston locknut 8a and the upper surface of upper anvil 10
Jumper bar radial hole 6g is symmetrically arranged on the circumference of jumper bar enlarged diameter section 6e, jumper bar radial hole 6g connects with jumper bar centre bore 6f.
When the upper port of jumper bar 6 is detached from valve living, liquid stream enters jumper bar centre bore 6f and downlink, flows outward from jumper bar radial hole 6g,
Into the annular space of big 8 cavity of resorption of piston, hydraulic action pushes big piston 8 to drive 6 uplink of jumper bar in the lower end surface of big piston 8,
When the upper end of jumper bar 6 and valve living contact, valve living closes the upper port of jumper bar 6, and liquid stream is blocked, and generates water hammer；?
Under effect of inertia, block stamp 9 continues uplink, hits upper anvil 10, vibrates tubing string.The liquid stream of jumper bar centre bore 6f is blocked
Afterwards, the hydraulic rapid decline of big 8 cavity of resorption of piston, under water flow and Gravitative Loads, jumper bar 6 and block stamp 9 quickly under return, with biggish
Lower hammering block 11a in kinetic energy impact lower contact 11, completes downward percussion action, and the upper port of jumper bar 6 is detached from valve living again at this time.
The top of the big flange collar 6d of jumper bar is diameter segment 6c in jumper bar, and the top of diameter segment 6c, which is equipped with, in jumper bar outwardly protrudes
The top of the small flange collar 6b of jumper bar, the small flange collar 6b of jumper bar are jumper bar reduced diameter section 6a, and the top of the small flange collar 6b of jumper bar is equipped with small work
Plug 7, the periphery of small piston 7 are fitted in the inner wall of outer cylinder small-bore section, and the top of small piston 7 is pressed with small piston locknut 7a, small work
Plug locknut 7a is screwed on the external screw thread of jumper bar reduced diameter section 6a.When the upper port of jumper bar 6 and valve living are in contact condition, punching
The liquid stream of bar centre bore 6f is blocked, and the liquid stream of 6 periphery of jumper bar acts on the upper surface of small piston 7, pushes 6 downlink of jumper bar, together
When under the Gravitative Loads of jumper bar 6 and block stamp 9, block stamp 9 completes downward percussion action with hammering block 11a under biggish kinetic energy impact,
Vibrate tubing string.The upper port of jumper bar 6 has disengaged from valve living at this time, and a part of liquid stream enters jumper bar centre bore 6f and downlink,
It is flowed outward from jumper bar radial hole 6g, into the annular space of big 8 cavity of resorption of piston, acts on the lower end surface of big piston 8；Another portion
Liquid separation stream still acts on the upper surface of small piston 7, and since the area of big piston 8 is greater than small piston 7, the resultant force of formation is upward, compels
Make 6 uplink of jumper bar, when the upper end of jumper bar 6 is contacted with valve living, valve living closes the upper port of jumper bar 6, and liquid stream is blocked, and generates
Water hammer；Under effect of inertia, block stamp 9 continues uplink, hits upper anvil 10, vibrates tubing string again.In this way, block stamp
9 is ceaselessly reciprocating between upper anvil 10 and lower hammering block 11a, vibrates stuck pipe column, realizes unfreezing purpose.Punching
Hammer 9 and valve living are resetted without the help of spring, reliable in action, long service life.
The lower lumen of valve housing 3a living is equipped with valve seat 3b, and the center of valve seat 3b is equipped with the valve base center hole of upper end closed
Spool 3c is plugged in 3b1, valve base center hole 3b1, spool 3c is in up-narrow and down-wide inverted T-shaped section；In the lower end surface of spool 3c
The heart is equipped with the spool groove 3c1 being recessed upwards, and the bottom wall central of spool groove 3c1 is equipped with the center spool counterbore upwardly extended
The annular region of the periphery 3c2, spool groove 3c1 is matched with the upper port of jumper bar 6, and the big end back side of spool 3c is with valve seat 3b's
Disc spring 3e is supported by between lower end surface；Valve seat 3b close to the position of valve housing 3a inner wall living be equipped with along axially through work valve water flowing
Hole 3b2.Spool groove 3c1 reduces the working (finishing) area of valve core sealed cover, and center spool counterbore 3c2 alleviates the weight of spool 3c
Amount, is allowed to more nimble；The sectional area of the lower end spool 3c is larger, and it is logical that the liquid stream to flow downward from top connection centre bore passes through valve living
Water hole 3b2 is acted on the step of spool 3c, pushes spool 3c downlink jointly with disc spring 3e, spool 3c is made to be pressed in the upper of jumper bar 6
Port, it is ensured that the reliable liquid stream for blocking jumper bar centre bore 6f.When jumper bar 6 by big piston 8 generate bigger lift return to
When upper, jumper bar 6 touches valve core sealed cover again, and pushes spool 3c uplink, and disc spring 3e is compressed, one side of elasticity of disc spring 3e
Face ensures the reliable contacts of spool 3c Yu jumper bar upper port, and energy storage is carried out when on the other hand being compressed, and makes the downlink of spool 3c more
Added with power, speed faster, accelerates the speed hit under block stamp 9.
The limit sleeve 5 of restricted spool 3c down stroke, valve housing living are installed on the step of outer cylinder small-bore section upper inside wall
The lower end of 3a is pressed on limit sleeve 5, and the top of jumper bar reduced diameter section 6a is passed through from the centre bore of limit sleeve 5, is set on limit sleeve 5
The limit sleeve sink 5a for thering is water supply stream to pass through.When the upper port of jumper bar 6 and valve living are in contact condition, jumper bar centre bore 6f's
Liquid stream is blocked, and the liquid stream of 6 periphery of jumper bar acts on the upper surface of small piston 7, pushes 6 downlink of jumper bar, and disc spring 3e is pushed at this time
Spool 3c DL synchronization makes the sealing surface of spool 3c keep being fitted in the upper port of jumper bar 6, and block stamp 9 is with the punching of biggish kinetic energy
Lower hammering block 11a is hit, downward percussion action is completed, vibrates tubing string.Stop downlink when spool 3c touches limit sleeve 5,
Jumper bar 6 continues traveling downwardly completion impact under flow stream pressure, gravity and effect of inertia, and the upper port of jumper bar 6 is opened at this time, liquid stream
Into jumper bar centre bore 6f, and then enter the cavity of resorption of big piston 8 quickly, the lift that big piston 8 generates is greater than the resistance of small piston 7
Make 6 uplink of jumper bar, when the upper end of jumper bar 6 is contacted again with spool 3c, valve living closes the upper port of jumper bar 6, and liquid stream is hindered
It is disconnected, generate water hammer；Under effect of inertia, block stamp 9 continues uplink, hits upper anvil 10, vibrates tubing string again.
The top of spool 3c is equipped with valve core seal ring 3d and valve base center hole 3b1 and fits, and valve base center hole 3b1's is upper
End is connected with the valve seat radial hole 3b3 for extending radially outward and penetrating through, and the outer end of valve seat radial hole 3b3 is screwed with valve filter plug living
3b4.Valve core seal ring 3d makes the upper end spool 3c and valve base center hole 3b1 realize sealing, when spool 3c is moved up, pushes valve
Liquid stream in seat centre bore 3b1 fills in 3b4 discharge from valve seat radial hole 3b3 and valve filter living；When spool 3c is moved down, liquid stream warp
After valve filter plug 3b4 filtering living, enters valve base center hole 3b1 from valve seat radial hole 3b3, fill into the epicoele of spool 3c, can so subtract
Resistance when small valve core 3c moves up and down keeps the movement of valve living sensitiveer.
The lower part of outer cylinder small-bore section is symmetrically arranged with the outer cylinder filtration hole radially penetrated through, the outer end difference of outer cylinder filtration hole
It is screwed with outer cylinder filter plug 4a, outer cylinder filtration hole is located between the small flange collar 6b of jumper bar and the big flange collar 6d of jumper bar in short transverse.When big
When piston 8 pushes 6 uplink of jumper bar, the volume of big 8 epicoele of piston is gradually become smaller, and liquid filters plug 4a discharge from outer cylinder.As spool 3c
The upper port of jumper bar centre bore 6f is closed, when small piston 7 pushes 6 downlink of jumper bar, the cavity of resorption decompression of big piston 8, liquid stream is from punching
Clearance outflow between bar 6 and upper anvil 10, the volume of big 8 epicoele of piston become larger, and outer cylinder is filtered plug 4a mistake by external streams
After filter, into big 8 epicoele of piston.Resistance when so can reduce 6 upstream or downstream of jumper bar, make the impact of block stamp 9 more added with
Power.
The inner cavity of top connection 1 is equipped with the taper box thread 1a connecting with top tubing string, and the lower section of taper box thread 1a is equipped with
The top connection inner convex platform protruded to axis direction, the circumference of top connection inner convex platform be equipped with multiple edges axially through top connection it is logical
Water hole 1b is screwed with the accumulator package 2 extended downwardly in the inner hole of top connection inner convex platform.Top connection on top connection inner convex platform
Limbers 1b keeps the liquid stream between top connection centre bore and piston unimpeded, when 6 uplink of jumper bar, the liquid stream of 7 epicoele of small piston
It being flowed up from valve limbers 3b2 living, valve seat 3b epicoele is made to generate high pressure, hydraulic energy can be stored in accumulator package 2,
To increase kinetic energy when hitting under block stamp 9.
Accumulator package 2 includes top closed and lower ending opening accumulator cylinder 2a, the lower port of accumulator cylinder 2a
It is screwed with accumulator screw head 2d, the screw head centre bore 2d1 of perforation is equipped with along the axis of accumulator screw head 2d, accumulator screw head 2d's
Top is equipped with the accumulator piston 2c matched with accumulator cylinder 2a inner wall, the top surface of accumulator piston 2c and accumulator cylinder
Accumulator spring 2b is supported by between the roof of 2a.When big piston 8 pushes 6 uplink of jumper bar, the volume of 7 epicoele of small piston becomes
Small, liquid stream enters valve seat 3b epicoele by valve limbers 3b2 living, increases the pressure of valve seat epicoele, accumulator piston 2c is in liquid
Pressure acts on lower uplink, and accumulator spring 2b is compressed, and hydraulic energy transfer is the elastic potential energy of accumulator spring 2b, while reducing punching
It hammers resistance when 9 uplink into shape, hits impact force on increase block stamp 9.After hitting in the completion of block stamp 9, the upper port of jumper bar 6 is by spool 3c
Closing makes the cavity of resorption decompression of big piston 8, and 7 downlink of liquid stream and gravitational force urges small piston, accumulator spring 2b pushes accumulator at this time
Piston 2c downlink increases the pressure to small piston 7, makes to hit under block stamp 9 more strong.
The above is only the preferable possible embodiments of the present invention, non-therefore limitation scope of patent protection of the invention.It removes
Outside above-described embodiment, the present invention can also have other embodiments.All technical sides formed using equivalent substitution or equivalent transformation
Case is all fallen within the protection domain of application claims.Technical characteristic of the present invention without description can by or use existing skill
Art realizes that details are not described herein.
Claims (10)
1. a kind of oil drilling waterpower low frequency impact device, including top connection, outer cylinder, upper anvil and lower contact, the upper anvil
Upper end periphery be screwed in the lower port of the outer cylinder, the lower end periphery of the upper anvil is screwed in the upper end of the lower contact
In mouthful, it is characterised in that: the middle part inner wall of the lower contact is equipped with interior step as lower hammering block, in the inner hole of the upper anvil
It is plugged with the jumper bar of clearance fit, the lower end of the jumper bar is screwed with block stamp, and the block stamp is located between upper anvil and lower hammering block；
The upper end of the jumper bar is equipped with the work valve of control jumper bar, and the valve living includes valve housing living, and the valve housing living is screwed in described
Between top connection and the upper port of the outer cylinder.
2. oil drilling according to claim 1 waterpower low frequency impact device, it is characterised in that: under the jumper bar is presented carefully
Coarse-texture is equipped with the jumper bar centre bore of lower end closed along the axis of jumper bar, and the upper end of the jumper bar centre bore extends to jumper bar
Upper end opening；Jumper bar enlarged diameter section stretches out upwards from the inner hole of the upper anvil, and the upper end of the jumper bar enlarged diameter section is equipped with
The jumper bar outwardly protruded big flange collar is equipped with big piston below the big flange collar of jumper bar, and the periphery of the big piston is fitted in
The inner wall of outer cylinder large aperture section, is pressed with big piston locknut below the big piston, the big piston locknut is screwed in the punching
On the external screw thread of bar enlarged diameter section, the jumper bar between the lower end surface of the big piston locknut and the upper surface of the upper anvil is straight greatly
Jumper bar radial hole is symmetrically arranged on the circumference of diameter section, the jumper bar radial hole connects with the jumper bar centre bore.
3. oil drilling according to claim 2 waterpower low frequency impact device, it is characterised in that: the big flange collar of jumper bar
Top is diameter segment in jumper bar, and the top of diameter segment is equipped with the small flange collar of jumper bar outwardly protruded in the jumper bar, and the jumper bar is small
The top of flange collar is jumper bar reduced diameter section, and the top of the small flange collar of jumper bar is equipped with small piston, the periphery patch of the small piston
The inner wall in outer cylinder small-bore section is closed, is pressed with small piston locknut above the small piston, the small piston locknut is screwed in institute
On the external screw thread for stating jumper bar reduced diameter section.
4. oil drilling according to claim 3 waterpower low frequency impact device, it is characterised in that: under the valve housing living
Portion inner cavity is equipped with valve seat, and the center of the valve seat is equipped with the valve base center hole of upper end closed, is plugged in the valve base center hole
Spool, the spool are in up-narrow and down-wide inverted T-shaped section；It is recessed that the lower end surface center of the spool is equipped with the spool being recessed upwards
Slot, the bottom wall central of the spool groove are equipped with the center spool counterbore upwardly extended, the annulus of the spool groove periphery
Domain is matched with the upper port of the jumper bar, is supported by dish between the big end back side of the spool and the lower end surface of the valve seat
Spring；The valve seat close to the position of valve outer casing inner wall living be equipped with along axially through work valve limbers.
5. oil drilling according to claim 4 waterpower low frequency impact device, it is characterised in that: the outer cylinder small-bore section
The limit sleeve of restricted spool down stroke is installed, the lower end of the valve housing living is pressed in the limit sleeve on the step of upper inside wall
On, the top of the jumper bar reduced diameter section is passed through from the centre bore of the limit sleeve, and the limit sleeve is equipped with circulation of supplying water
The limit sleeve sink crossed.
6. oil drilling according to claim 4 waterpower low frequency impact device, it is characterised in that: pacify on the top of the spool
It fits equipped with valve core seal ring and the valve base center hole, the upper end of the valve base center hole, which is connected with, to be extended radially outward
And the valve seat radial hole penetrated through, the outer end of the valve seat radial hole are screwed with valve filter plug living.
7. oil drilling according to claim 3 waterpower low frequency impact device, it is characterised in that: the outer cylinder small-bore section
Lower part be symmetrically arranged with the outer cylinder filtration hole radially penetrated through, the outer end of the outer cylinder filtration hole is screwed with outer cylinder filter plug respectively,
The outer cylinder filtration hole is in short transverse between the small flange collar of the jumper bar and the big flange collar of jumper bar.
8. oil drilling according to claim 1 waterpower low frequency impact device, it is characterised in that: the middle part of the upper anvil
Periphery is equipped with the upper anvil flange collar outwardly protruded, and the lower port of the outer cylinder is pressed in the upper surface of the upper anvil flange collar, described
The upper port of lower contact is pressed in the lower end surface of the upper anvil flange collar.
9. oil drilling according to any one of claim 1 to 8 waterpower low frequency impact device, it is characterised in that: described
The top connection inner convex platform protruded to axis direction, the circumference of the top connection inner convex platform are equipped with below the taper box thread of top connection
Be equipped with multiple edges axially through top connection limbers, be screwed with the storage extended downwardly in the inner hole of the top connection inner convex platform
It can device assembly.
10. oil drilling according to claim 9 waterpower low frequency impact device, it is characterised in that: the accumulator package
Including top closed and lower ending opening accumulator cylinder, the lower port of the accumulator cylinder is screwed with accumulator screw head, edge
The axis of accumulator screw head is equipped with the screw head centre bore of perforation, and the top of the accumulator screw head is equipped with and accumulator cylinder inboard wall
The accumulator piston matched is supported by accumulator between the top surface of the accumulator piston and the roof of the accumulator cylinder
Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207390.4A CN109138888A (en) | 2018-10-17 | 2018-10-17 | Oil drilling waterpower low frequency impact device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207390.4A CN109138888A (en) | 2018-10-17 | 2018-10-17 | Oil drilling waterpower low frequency impact device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109138888A true CN109138888A (en) | 2019-01-04 |
Family
ID=64812250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811207390.4A Pending CN109138888A (en) | 2018-10-17 | 2018-10-17 | Oil drilling waterpower low frequency impact device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138888A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202387U (en) * | 1985-06-07 | 1986-04-02 | 地质矿产部石油钻井研究所 | Fluid operated hammer for the use of oil rotary drilling |
| US20050145400A1 (en) * | 2003-12-19 | 2005-07-07 | Clark Equipment Company | Impact tool |
| CN107165573A (en) * | 2017-06-15 | 2017-09-15 | 核工业北京地质研究院 | The interlocking-type hammer valve system of hydraulic impacter service behaviour can be improved |
| CN208870563U (en) * | 2018-10-17 | 2019-05-17 | 中国石油化工股份有限公司 | Oil drilling waterpower low frequency impact device |
-
2018
- 2018-10-17 CN CN201811207390.4A patent/CN109138888A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202387U (en) * | 1985-06-07 | 1986-04-02 | 地质矿产部石油钻井研究所 | Fluid operated hammer for the use of oil rotary drilling |
| US20050145400A1 (en) * | 2003-12-19 | 2005-07-07 | Clark Equipment Company | Impact tool |
| CN107165573A (en) * | 2017-06-15 | 2017-09-15 | 核工业北京地质研究院 | The interlocking-type hammer valve system of hydraulic impacter service behaviour can be improved |
| CN208870563U (en) * | 2018-10-17 | 2019-05-17 | 中国石油化工股份有限公司 | Oil drilling waterpower low frequency impact device |
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