CN112227956B - Jet-type hydraulic pulse nipple - Google Patents
Jet-type hydraulic pulse nipple Download PDFInfo
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- CN112227956B CN112227956B CN202010987932.5A CN202010987932A CN112227956B CN 112227956 B CN112227956 B CN 112227956B CN 202010987932 A CN202010987932 A CN 202010987932A CN 112227956 B CN112227956 B CN 112227956B
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- 210000002445 nipple Anatomy 0.000 title claims abstract description 37
- 238000005553 drilling Methods 0.000 claims abstract description 76
- 239000012530 fluid Substances 0.000 claims abstract description 69
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 claims 2
- 239000011435 rock Substances 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
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- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a jet-type hydraulic pulse nipple, which comprises: the device comprises a baffling mechanism, a transmission mechanism and a jet mechanism; the baffling mechanism comprises a flow guide piece and a partition piece; the transmission mechanism comprises a transmission cylinder and a piston; the jet mechanism comprises a throttle cylinder and a piston rod. The technical scheme provided by the invention has the beneficial effects that: through making drilling fluid carry out the attaches wall spiral motion in the inlet orifice, make the inlet orifice separate into first runner and second runner through the separator, when the drilling fluid in the inlet orifice gets into first runner, thereby drilling fluid gets into first direction chamber and makes the efflux mouth be in the encapsulated situation through the piston rod, thereby make the drilling fluid in the device carry out the energy storage, when the drilling fluid in the inlet orifice gets into the second runner, thereby drilling fluid gets into the second direction chamber and makes the efflux mouth be in the encapsulated situation through the piston rod, thereby strike the rock in the drilling with the blowout drilling fluid, can effectively improve the weight on bit, change static friction for the frictional force of dynamic friction reduction instrument cluster and the wall of a well, the drilling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of drilling devices, in particular to a jet flow type hydraulic pulse nipple.
Background
Along with the gradual increase of the drilling depth, the rock breaking drilling efficiency of the drill bit is gradually reduced under the action of the overburden and the pressure of a fluid column in the well. Therefore, how to effectively improve the drilling efficiency of the deep well is an urgent problem to be solved in the current drilling engineering.
For the oil drilling and production technology, a horizontal well and a directional well are always accompanied with the problems of large friction resistance, low drilling efficiency and the like, the hydraulic oscillator can effectively reduce friction and resistance, the existing hydraulic oscillator adopts a vibrating plate as a power source, and the vibrating plate is easy to damage under the impact of high-pressure drilling fluid, so that the hydraulic oscillator has poor working stability and short service life.
Disclosure of Invention
In view of this, it is necessary to provide a jet hydraulic pulse nipple to solve the technical problems of poor working stability and short service life of the conventional hydraulic oscillator.
A jet hydraulic impulse sub comprising: the device comprises a baffling mechanism, a transmission mechanism and a jet mechanism;
the flow baffling mechanism comprises a flow guide piece and a partition piece, wherein an inflow hole penetrating through the flow guide piece along the length direction of the flow guide piece is formed in the flow guide piece, a serial flow hole is formed in the flow guide piece, the aperture of the inflow hole is gradually increased along the flowing direction of fluid in the inflow hole, the partition piece is arranged in the inflow hole and divides the inflow hole into a first flow channel and a second flow channel, the first flow channel is communicated with one end of the serial flow hole, and the second flow channel is communicated with the other end of the serial flow hole;
the transmission mechanism comprises a transmission cylinder and a piston, the transmission cylinder is provided with a guide cavity, the piston is arranged in the guide cavity in a sliding mode and divides the guide cavity into a first guide cavity and a second guide cavity, the first guide cavity is communicated with the first flow channel, and the second guide cavity is communicated with the second flow channel;
efflux mechanism includes throttle cylinder and piston rod, the throttle cylinder has a throttle chamber, the throttle chamber with first direction chamber and second direction chamber all communicate, set up on the throttle cylinder with the efflux mouth of throttle chamber intercommunication, the one end of piston rod with piston fixed connection, the piston rod can follow the piston moves to primary importance or second place, works as when the piston rod is located the primary importance, the other end of piston rod is located in the efflux mouth so that the efflux mouth is in the closed condition, so that drilling fluid in the throttle intracavity carries out the energy storage, works as when the piston rod is located the second place, the other end of piston rod is located outside the efflux mouth so that the efflux mouth is in the open mode, with drilling fluid in the throttle chamber is followed the efflux mouth jets out.
Preferably, the water conservancy diversion spare includes nozzle block, feedback piece and apron, seted up the holding tank on the lateral wall of nozzle block the feedback piece set up in the holding tank, the series flow hole form in the lateral wall of feedback piece with between the inside wall of holding tank, the apron lid fit the holding tank and with the nozzle block reaches the feedback piece all can be dismantled and be connected, the influent stream hole form in the apron with between the feedback piece.
Preferably, an arc-shaped groove is formed at one end of the separator, which is positioned at the inner side of the inflow hole.
Preferably, the transmission cylinder includes outer sleeve and inner skleeve, place in the inner skleeve in the outer sleeve and with the coaxial setting of outer sleeve, the piston slide set up in the inner skleeve, the outer wall of inner skleeve with form a ring cavity between the inner wall of outer sleeve, the one end of ring cavity with the second flow channel intercommunication, the other end of ring cavity with the throttle chamber intercommunication, the anti-propulsion jet hole has been seted up on the lateral wall of inner skleeve, anti-propulsion jet hole with the ring cavity reaches the second direction chamber all communicates.
Preferably, the transmission cylinder still includes the front end housing, the front end housing lid fit the inner skleeve reaches the one end of outer sleeve, set up on the front end housing with the first through-hole of inner skleeve intercommunication, still set up second through-hole and third through-hole on the front end housing, the second through-hole with the second runner reaches the ring cavity all communicates, the third through-hole with the cluster flow hole reaches the ring cavity all communicates.
Preferably, the transmission cylinder further comprises a rear end cover, the rear end cover covers the other ends of the inner sleeve and the outer sleeve, a fourth through hole and a through hole are formed in the rear end cover, the fourth through hole is communicated with the annular cavity and the throttling cavity, and the through hole is used for allowing the piston rod to penetrate through.
Preferably, the inner diameter of the jet orifice gradually decreases along the flow direction of the fluid in the jet orifice.
Preferably, the jet type hydraulic pulse nipple further comprises a shell, an accommodating cavity is formed in the shell, and the flow guide piece, the transmission cylinder and the throttling cylinder are fixedly arranged in the accommodating cavity.
Preferably, the jet hydraulic pulse nipple further comprises an upper joint and a lower joint, wherein one end of the upper joint is fixedly connected with one end of the shell, and one end of the lower joint is fixedly connected with the other end of the shell.
Preferably, the jet hydraulic pulse nipple further comprises a buffer mechanism, the buffer mechanism comprises a fixing seat and a disc spring, one end of the fixing seat is fixed on the shell, one end of the disc spring is fixed at the other end of the fixing seat, and the other end of the disc spring is fixedly connected with the upper joint.
Compared with the prior art, the technical scheme provided by the invention has the beneficial effects that: the drilling fluid passes through the inflow hole with the aperture gradually increased so as to carry out wall-attached spiral motion in the inflow hole, the inflow hole is divided into a first flow passage and a second flow passage by the partition, the first flow passage and the second flow passage are respectively communicated with a first guide cavity and a second guide cavity in the transmission cylinder, so that when the drilling fluid in the inflow hole enters the first flow passage, the drilling fluid enters the first guide cavity so as to enable the jet opening to be in a closed state through the piston rod, the drilling fluid in the device is subjected to energy storage, when the drilling fluid in the inflow hole enters the second flow passage, the drilling fluid enters the second guide cavity so as to enable the jet opening to be in a closed state through the piston rod, the drilling fluid is sprayed out to impact rocks in the drilling hole, the drilling pressure can be effectively improved, the static friction is changed into the dynamic friction, the friction force between the tool string and the well wall is reduced, and the drilling efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a jet-type hydraulic pulse nipple provided by the invention;
FIG. 2 is an exploded view of the baffle mechanism of FIG. 1;
FIG. 3 is a perspective view of the transmission mechanism (outer sleeve omitted) of FIG. 1;
FIG. 4 is a perspective view of the transmission mechanism of FIG. 1 (with the outer sleeve omitted) from another perspective;
FIG. 5 is a schematic perspective view of the fluidic mechanism of FIG. 1;
FIG. 6 is a schematic perspective view of the damper mechanism of FIG. 1;
in the figure: 1-baffling mechanism, 2-transmission mechanism, 3-jet mechanism, 4-shell, 5-upper joint, 6-lower joint, 7-buffer mechanism, 11-guide piece, 111-inflow hole, 1111-first flow channel, 1112-second flow channel, 112-series flow hole, 113-nozzle block, 114-feedback block, 115-cover plate, 12-separating piece, 121-arc groove, 21-transmission cylinder, 211-outer sleeve, 212-inner sleeve, 2121-reverse thrust flow inlet, 2122-discharge hole, 213-ring cavity, 214-front end cover, 2141-first through hole, 2142-second through hole, 2143-third through hole, 215-rear end cover, 2151-fourth through hole, 22-piston, 31-throttle cylinder, 311-jet orifice, 32-piston rod, 71-fixing seat and 72-spring.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, the invention provides a jet-type hydraulic pulse nipple, which comprises a baffle mechanism 1, a transmission mechanism 2 and a jet mechanism 3.
Referring to fig. 1 and 2, the baffle mechanism 1 includes a flow guiding member 11 and a partition member 12, an inflow hole 111 penetrating the flow guiding member 11 along a length direction of the flow guiding member 11 is formed in the flow guiding member 11, a serial flow hole 112 is further formed in the flow guiding member 11, a diameter of the inflow hole 111 is gradually increased along a flow direction of fluid in the inflow hole 111, the partition member 12 is disposed in the inflow hole 111 and divides the inflow hole 111 into a first flow channel 1111 and a second flow channel 1112, the first flow channel 1111 is communicated with one end of the serial flow hole 112, and the second flow channel 1112 is communicated with the other end of the serial flow hole 112.
Referring to fig. 1, 3 and 4, the transmission mechanism 2 includes a transmission cylinder 21 and a piston 22, the transmission cylinder 21 has a guide cavity, the piston 22 is slidably disposed in the guide cavity and divides the guide cavity into a first guide cavity and a second guide cavity, the first guide cavity is communicated with the first flow channel 1111, and the second guide cavity is communicated with the second flow channel 1112.
Referring to fig. 1 and 5, the fluidic mechanism 3 includes a throttle cylinder 31 and a piston rod 32, the throttle cylinder 31 has a throttle cavity, the throttle cavity is communicated with both the first guide cavity and the second guide cavity, a fluidic orifice 311 communicated with the throttle cavity is formed in the throttle cylinder 31, one end of the piston rod 32 is fixedly connected to the piston 22, the piston rod 32 can move to the first position or the second position along with the piston 22, when the piston rod 32 is located at the first position, the other end of the piston rod 32 is located in the fluidic orifice 311 to make the fluidic orifice 311 in a closed state, and when the piston rod 32 is located at the second position, the other end of the piston rod 32 is located outside the fluidic orifice 311 to make the fluidic orifice 311 in an open state.
When the jet-type hydraulic pulse nipple is used, drilling fluid flows in from the inflow hole 111 after the jet-type hydraulic pulse nipple is installed on a drill rod, the drilling fluid in the inflow hole 111 flows along the flowing direction of the drilling fluid due to the fact that the aperture of the inflow hole 111 is gradually increased, the drilling fluid in the inflow hole 111 flows along the wall under the action of the coanda effect (coanda effect), the drilling fluid performs spiral motion on the inner wall of the inflow hole 111, when the drilling fluid enters the first flow channel 1111, the drilling fluid enters the first guide cavity along the first flow channel 1111, so that the piston 22 is pushed out, the piston 22 pushes the piston rod 32 to move outwards and enables the piston rod 32 to be located at the first position, at the moment, the other end of the piston rod 32 is located in the jet opening 311 so that the jet opening 311 is in a closed state, the drilling fluid of the pulse nipple cannot be discharged, and the pressure of the drilling fluid is gradually increased; then, the drilling fluid enters the second flow channel 1112 along the serial flow hole 112 under the action of reverse thrust, and then, the drilling fluid enters the second guide cavity along the second flow channel 1112, so that the piston 22 moves inwards, the piston 22 drives the piston rod 32 to move inwards, and the piston rod 32 moves to the second position, at this time, the other end of the piston rod 32 is located outside the jet orifice 311 to enable the jet orifice 311 to be in an open state, the drilling fluid is ejected from the jet orifice 311, and when the drilling fluid in the jet hydraulic pulse nipple is depressurized, the drilling fluid continues to enter the next cycle.
Further, referring to fig. 1 and 2, the flow guiding member 11 includes a nozzle block 113, a feedback block 114 and a cover plate 115, an accommodating groove is formed on a side wall of the nozzle block 113, the feedback block 114 is disposed in the accommodating groove, the serial flow hole 112 is formed between an outer side wall of the feedback block 114 and an inner side wall of the accommodating groove, the cover plate 115 covers the accommodating groove and is detachably connected to both the nozzle block 113 and the feedback block 114, and the flow inlet hole 111 is formed between the cover plate 115 and the feedback block 114. In this embodiment, the cover plate 115 covers the receiving groove and is connected to the nozzle block 113 and the feedback block 114 by bolts.
Preferably, referring to fig. 1 and fig. 2, an arc-shaped groove 121 is formed at one end of the partition 12 located inside the inflow hole 111, and the coanda effect of the drilling fluid in the inflow hole 111 can be enhanced by providing the arc-shaped groove 121, in this embodiment, the partition 12 is a wedge.
Further, referring to fig. 1, fig. 3 and fig. 4, the transmission cylinder 21 includes an outer sleeve 211 and an inner sleeve 212, the inner sleeve 212 is disposed in the outer sleeve 211 and is coaxial with the outer sleeve 211, the piston 22 is slidably disposed in the inner sleeve 212, an annular cavity 213 is formed between an outer wall of the inner sleeve 212 and an inner wall of the outer sleeve 212, one end of the annular cavity 213 is communicated with the second flow channel 1112, the other end of the annular cavity 213 is communicated with the throttling cavity, a reverse thrust flow inlet 2121 is disposed on a side wall of the inner sleeve 212, the reverse thrust flow inlet 2121 is communicated with the annular cavity 213 and the second guide cavity, and a drain hole 2122 is further disposed on a side wall of the inner sleeve 212.
Preferably, referring to fig. 1, 3 and 4, the transmission cylinder 21 further includes a front end cover 214, the front end cover 214 covers one end of the inner sleeve 212 and the outer sleeve 211, the front end cover 214 is provided with a first through hole 2141 communicated with the inner sleeve 212, the front end cover 214 is further provided with a second through hole 2142 and a third through hole 2143, the second through hole 2142 is communicated with the second flow channel 1112 and the ring cavity 213, and the third through hole 2143 is communicated with the serial flow hole 112 and the ring cavity 213.
Preferably, referring to fig. 1, fig. 3 and fig. 4, the transmission cylinder 21 further includes a rear end cover 215, the rear end cover 215 covers the other ends of the inner sleeve 212 and the outer sleeve 211, a fourth through hole 2151 and a through hole are formed in the rear end cover 215, the fourth through hole 2151 is communicated with the ring cavity 213 and the throttle cavity, and the through hole is used for the piston rod 32 to pass through.
Preferably, referring to fig. 1 and 5, the inner diameter of the jet orifice 311 gradually decreases along the flow direction of the fluid in the jet orifice 311, so as to increase the speed of the jetted drilling fluid and improve the wall breaking effect.
Further, referring to fig. 1, the jet hydraulic pulse nipple further includes a housing 4, an accommodating cavity is formed in the housing 4, and the flow guide element 11, the transmission cylinder 21, and the throttle cylinder 31 are all fixedly disposed in the accommodating cavity.
Further, please refer to fig. 1, the jet hydraulic pulse nipple further comprises an upper joint 5 and a lower joint 6, one end of the upper joint 5 is fixedly connected with one end of the housing 4, the other end of the upper joint 5 is used for being connected with a drill pipe nipple, one end of the lower joint 6 is fixedly connected with the other end of the housing 4, the other end of the lower joint 6 is connected with another drill pipe nipple, and the device is conveniently connected to a drill pipe by arranging the upper joint 5 and the lower joint 6.
Preferably, referring to fig. 1 and 6, the jet hydraulic pulse nipple further includes a buffer mechanism 7, the buffer mechanism 7 includes a fixing seat 71 and a disc spring 72, one end of the fixing seat 71 is fixed on the housing 4, one end of the disc spring 72 is fixed at the other end of the fixing seat 71, the other end of the disc spring 72 is fixedly connected with the upper joint 5, and the impact of a drill rod on the jet hydraulic pulse nipple during a drilling process can be reduced through the buffer action of the disc spring 72, so that the service life of the jet hydraulic pulse nipple is prolonged.
For better understanding of the present invention, the following detailed description of the working process of the jet hydraulic impulse nipple provided by the present invention is made with reference to fig. 1 to 6: when the jet type hydraulic pulse nipple is used, after the jet type hydraulic pulse nipple is installed on a drill rod, drilling fluid flows in from the inflow hole 111, the aperture of the inflow hole 111 is gradually increased along the flowing direction of the drilling fluid, the drilling fluid in the inflow hole 111 flows in a wall attachment manner under the action of a coanda effect (conada effect), the drilling fluid performs spiral motion on the inner wall of the inflow hole 111, when the drilling fluid enters the first flow channel 1111, the drilling fluid enters the left side of the inner sleeve 212 along the first flow channel 1111, so that the piston 22 is pushed out outwards, the piston 22 pushes the piston rod 32 to move outwards and enables the piston rod 32 to be in the first position, at the moment, the other end of the piston rod 32 is located in the jet opening 311, so that the jet opening 311 is in a closed state, the drilling fluid of the pulse nipple cannot be discharged, and the pressure of the drilling fluid is gradually increased; then, the drilling fluid enters the second flow channel 1112 through the serial flow hole 112 under the action of reverse thrust, then the drilling fluid enters the annular cavity 213 through the second flow channel 1112, and then enters the right side of the inner sleeve 212 through the reverse thrust flow inlet hole 2121 from the annular cavity 213, so that the piston 22 moves inwards, the piston 22 drives the piston rod 32 to move inwards, and the piston rod 32 moves to the second position, at this time, the other end of the piston rod 32 is located outside the jet orifice 311 to enable the jet orifice 311 to be in an open state, and the drilling fluid is ejected from the jet orifice 311, and when the drilling fluid in the jet hydraulic pulse nipple is depressurized, the drilling fluid continues to enter the next cycle.
In summary, in the present invention, the drilling fluid passes through the inflow hole 111 with a gradually increasing aperture to make the drilling fluid perform a wall-attached spiral motion in the inflow hole 111, the inflow hole 111 is divided into the first flow channel 1111 and the second flow channel 1112 by the partition member 12, and the first flow channel 1111 and the second flow channel 1112 are respectively communicated with the first guide cavity and the second guide cavity in the transmission cylinder, so that when the drilling fluid in the inflow hole 111 enters the first flow channel 1111, the drilling fluid enters the first guide cavity to make the jet orifice 311 in a closed state by the piston rod 32, so that the drilling fluid in the device is stored, and when the drilling fluid in the inflow hole 111 enters the second flow channel 1112, the drilling fluid enters the second guide cavity to make the jet orifice 311 in a closed state by the piston rod 32, so as to jet out the drilling fluid to impact the rock in the drilling hole.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. The utility model provides a efflux formula water conservancy pulse nipple joint which characterized in that includes: the baffle mechanism, the transmission mechanism and the jet mechanism;
the flow baffling mechanism comprises a flow guide piece and a partition piece, wherein an inflow hole penetrating through the flow guide piece along the length direction of the flow guide piece is formed in the flow guide piece, a serial flow hole is formed in the flow guide piece, the aperture of the inflow hole is gradually increased along the flowing direction of fluid in the inflow hole, the partition piece is arranged in the inflow hole and divides the inflow hole into a first flow channel and a second flow channel, the first flow channel is communicated with one end of the serial flow hole, and the second flow channel is communicated with the other end of the serial flow hole;
the transmission mechanism comprises a transmission cylinder and a piston, the transmission cylinder is provided with a guide cavity, the piston is arranged in the guide cavity in a sliding mode and divides the guide cavity into a first guide cavity and a second guide cavity, the first guide cavity is communicated with the first flow channel, and the second guide cavity is communicated with the second flow channel;
the jet mechanism comprises a throttle cylinder and a piston rod, the throttle cylinder is provided with a throttle cavity, the throttle cavity is communicated with the first guide cavity and the second guide cavity, the throttle cylinder is provided with a jet orifice communicated with the throttle cavity, one end of the piston rod is fixedly connected with the piston, the piston rod can move to a first position or a second position along with the piston, when the piston rod is positioned at the first position, the other end of the piston rod is positioned in the jet orifice to enable the jet orifice to be in a closed state so as to enable drilling fluid in the throttle cavity to store energy, and when the piston rod is positioned at the second position, the other end of the piston rod is positioned outside the jet orifice to enable the jet orifice to be in an open state so as to enable the drilling fluid in the throttle cavity to be ejected from the jet orifice;
when drilling fluid enters the first flow channel, the drilling fluid enters the first guide cavity along the first flow channel so as to push the piston to be outwards pushed, the piston pushes the piston rod to move outwards and enables the piston rod to be in the first position, at the moment, the other end of the piston rod is located in the jet orifice so as to enable the jet orifice to be in a closed state, the drilling fluid of the pulse nipple joint cannot be discharged, and therefore the pressure of the drilling fluid is gradually increased; then, the drilling fluid enters the second flow channel along the series flow hole under the action of reverse thrust, and then enters the second guide cavity along the second flow channel, so that the piston moves inwards, the piston drives the piston rod to move inwards, the piston rod moves to a second position, at the moment, the other end of the piston rod is positioned outside the jet orifice, so that the jet orifice is in an open state, and the drilling fluid is sprayed out of the jet orifice.
2. The jet hydraulic impulse nipple of claim 1, wherein the flow guide member comprises a nozzle block, a feedback block, and a cover plate, wherein a receiving groove is formed in a sidewall of the nozzle block, the feedback block is disposed in the receiving groove, the series flow hole is formed between an outer sidewall of the feedback block and an inner sidewall of the receiving groove, the cover plate covers the receiving groove and is detachably connected to both the nozzle block and the feedback block, and the inflow hole is formed between the cover plate and the feedback block.
3. The jet hydraulic impulse nipple of claim 1, characterized in that the end of the separator inside the inflow hole is formed with an arc-shaped groove.
4. The jet hydraulic impulse nipple of claim 1, characterized in that the transmission cylinder includes an outer sleeve and an inner sleeve, the inner sleeve is placed in the outer sleeve and is disposed coaxially with the outer sleeve, the piston is slidably disposed in the inner sleeve, an annular cavity is formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve, one end of the annular cavity is communicated with the second flow channel, the other end of the annular cavity is communicated with the throttling cavity, a reverse thrust flow inlet hole is formed in the side wall of the inner sleeve, and the reverse thrust flow inlet hole is communicated with both the annular cavity and the second guide cavity.
5. The jet hydraulic pulse nipple of claim 4, wherein the transmission cylinder further comprises a front end cover, the front end cover covers one ends of the inner sleeve and the outer sleeve, a first through hole communicated with the inner sleeve is formed in the front end cover, a second through hole and a third through hole are further formed in the front end cover, the second through hole is communicated with the second flow channel and the annular cavity, and the third through hole is communicated with the flow passing hole and the annular cavity.
6. The jet-type hydraulic pulse nipple according to claim 5, wherein the transmission cylinder further comprises a rear end cap, the rear end cap covers the other ends of the inner sleeve and the outer sleeve, a fourth through hole and a through hole are formed in the rear end cap, the fourth through hole is communicated with both the annular cavity and the throttle cavity, and the through hole is used for the piston rod to pass through.
7. The jet-type hydraulic pulse nipple according to claim 1, wherein an inner diameter of the jet orifice is gradually reduced along a flow direction of the fluid in the jet orifice.
8. The jet-type hydraulic pulse nipple according to claim 1, further comprising a housing, wherein an accommodating cavity is formed in the housing, and the flow guide member, the transmission cylinder and the throttle cylinder are all fixedly arranged in the accommodating cavity.
9. The jet hydraulic impulse nipple of claim 8, further comprising an upper joint and a lower joint, wherein one end of the upper joint is fixedly connected with one end of the housing, and one end of the lower joint is fixedly connected with the other end of the housing.
10. The jet hydraulic impulse nipple of claim 9, further comprising a buffering mechanism, wherein the buffering mechanism comprises a fixing seat and a disc spring, one end of the fixing seat is fixed on the housing, one end of the disc spring is fixed at the other end of the fixing seat, and the other end of the disc spring is fixedly connected with the upper joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987932.5A CN112227956B (en) | 2020-09-18 | 2020-09-18 | Jet-type hydraulic pulse nipple |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987932.5A CN112227956B (en) | 2020-09-18 | 2020-09-18 | Jet-type hydraulic pulse nipple |
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| Publication Number | Publication Date |
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| CN112227956A CN112227956A (en) | 2021-01-15 |
| CN112227956B true CN112227956B (en) | 2023-01-24 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530447B (en) * | 2021-08-20 | 2023-02-17 | 中国石油大学(北京) | Wall-attached self-excited pulse jet device, perforating device and rock breaking device |
| CN117108205B (en) * | 2023-10-20 | 2024-01-23 | 四川派盛通石油工程技术有限公司 | Pulse type supercharging jet drilling device |
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| US7909094B2 (en) * | 2007-07-06 | 2011-03-22 | Halliburton Energy Services, Inc. | Oscillating fluid flow in a wellbore |
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| US5230389A (en) * | 1989-12-01 | 1993-07-27 | Total | Fluidic oscillator drill bit |
| CN103696686A (en) * | 2013-12-09 | 2014-04-02 | 吉林大学 | Jet-type explosive pressure pulse anti-drag drilling tool |
| WO2019061617A1 (en) * | 2017-09-29 | 2019-04-04 | 西南石油大学 | Negative pressure pulse oscillator |
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| Title |
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| 射流式水力振荡器理论分析与试验研究;柳鹤;《中国优秀博硕士学位论文全文数据库(博士) 工程科技Ⅰ辑》;20140915(第09期);B019-1 * |
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