CN211448579U - Efficient uninterrupted circulating valve tool - Google Patents
Efficient uninterrupted circulating valve tool Download PDFInfo
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- CN211448579U CN211448579U CN201922309064.0U CN201922309064U CN211448579U CN 211448579 U CN211448579 U CN 211448579U CN 201922309064 U CN201922309064 U CN 201922309064U CN 211448579 U CN211448579 U CN 211448579U
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Abstract
The utility model discloses a high-efficiency uninterrupted circulating valve tool, which comprises a bypass valve assembly, a cylinder assembly and a clamping mechanism; the bypass valve assembly comprises a driving pipe, an elastic hinge, a valve plate and a valve seat, a valve groove and a side hole are formed in the wall of the valve seat, the valve plate is located in the valve groove, one end of the valve plate is hinged to the top of the valve groove through the elastic hinge, and the lower end of the driving pipe is connected with the valve seat in a sliding and sealing mode; the cylinder assembly comprises an upper joint, a middle cylinder, a lower joint and a lining, wherein the lower joint encapsulates the valve seat in the middle cylinder, the upper joint encapsulates the lining in the middle cylinder, the upper end of the driving pipe is connected with the lining in a sliding and sealing manner, and the wall of the middle cylinder is provided with an opening communicated with the side hole; the clamping mechanism comprises a hydraulic tong head and a lifter, and the lifter is connected to the upper end of the hydraulic tong head and used for pushing the driving pipe to move up and down. The utility model discloses a driving tube reciprocates and switches main entrance and side passageway to can keep the continuous circulation of drilling fluid when connecing single, make whole drilling period realize stable equivalent circulating density.
Description
Technical Field
The utility model relates to a technical field is equipped to the oil, concretely relates to high-efficient incessant circulation valve instrument.
Background
At present, the drilling problem of deep wells with complex stratums becomes an important barrier for restricting the development of oil-gas exploration and development business in China, the major technical problem of how to solve the drilling of the deep wells with the complex stratums arouses high attention of the oil-gas exploration and development world, if a narrow drilling fluid density window well is met during drilling operation, a pump needs to be stopped and circulation in the well needs to be interrupted during single joint or stand root connection, so that the operation time is prolonged, and faults such as sand setting, well wall collapse, even well kick and the like are easy to occur after the circulation in the well is interrupted, and great risks are brought to the operation safety.
Disclosure of Invention
The utility model aims at providing a high-efficient incessant circulating valve instrument to the defect that prior art exists, its is rational in infrastructure, can keep the continuous circulation of drilling fluid when connecing stand or single, makes the whole equivalent circulating density that realizes during creeping into and incessant drill chip discharge.
The technical scheme of the utility model is that:
a high-efficiency uninterrupted circulating valve tool comprises a bypass valve assembly, a cylinder assembly and a clamping mechanism;
the bypass valve assembly comprises a driving pipe, an elastic hinge, a valve plate and a valve seat, the valve seat is tubular, a valve groove and a side hole are formed in the wall of the valve seat, the valve plate is located in the valve groove, one end of the valve plate is hinged to the top of the valve groove through the elastic hinge, and the lower end of the driving pipe is connected with the valve seat in a sliding and sealing mode;
the cylinder assembly comprises an upper joint, a middle cylinder, a lower joint and a lining, wherein the lower joint is connected to the lower end of the middle cylinder, a valve seat is packaged in the middle cylinder through the lower joint, an opening corresponding to the position of a side hole of the valve seat is formed in the wall of the middle cylinder, the upper joint is connected to the upper end of the middle cylinder, the lining is packaged in the middle cylinder through the upper joint, the upper end of the driving pipe is connected with the lining in a sliding and sealing mode, a pin groove is further formed in the middle of the outer wall of the driving pipe, and the pin groove is located in the through groove and moves up and down along with;
the clamping mechanism comprises a hydraulic tong head, a bolt and a lifter, a jaw of the hydraulic tong head is matched with the middle barrel, the lifter is fixedly connected to the upper end of the hydraulic tong head, one end of the bolt is clamped with the pin groove, and the other end of the bolt is connected with the lifter and moves up and down along with the lifter.
Preferably, the elevator comprises a screw rod, a screw sleeve, a motor and a C-shaped support, the lower end of the support is fixedly connected with the hydraulic tong head, a longitudinal guide groove is formed in the support, the screw rod is longitudinally hinged to the support, the screw sleeve is in threaded connection with the screw rod, one end of the bolt is fixedly connected with the screw sleeve, the other end of the bolt penetrates through the guide groove and then is clamped with the pin groove, the motor is fixedly connected to the support, and a rotating shaft of the motor is in transmission connection with the screw rod.
Preferably, gears which are meshed with each other are mounted at one end of the screw rod and on a rotating shaft of the motor.
Preferably, the inner wall of the valve seat is provided with an annular groove, and an O-shaped sealing ring is arranged in the annular groove.
Preferably, the inner wall of the lining is provided with a ring groove, and an O-shaped sealing ring is arranged in the ring groove.
Compared with the prior art, the utility model, have following advantage:
the utility model can keep the continuous circulation of the drilling fluid when connecting a single or an upright column, so that the stable equivalent circulating density and uninterrupted drill cuttings discharge are realized during the whole drilling period, and the well conditions are comprehensively improved; especially, when the single joint is connected, the pressure fluctuation under the well is effectively avoided, the quality and the cleanliness of the well hole are improved, the well wall formed in the well drilling with the narrow well liquid density window can be ensured to be free from collapse to the maximum extent, the occurrence of well drilling accidents is greatly reduced, the possibility of well kick is reduced, and therefore the safety of the well drilling operation is improved.
Drawings
FIG. 1 is a schematic view of a by-pass valve assembly with a valve plate open and side holes closed;
FIG. 2 is a schematic view of a valve plate of the bypass valve assembly in a closed state and an open state of a side hole;
FIG. 3 is a schematic structural view of the utility model when connecting the upright post;
FIG. 4 is a schematic structural view of the present invention when a single is connected;
FIG. 5 is a schematic structural view of the clamping mechanism;
in the figure: 1. the hydraulic clamp comprises an upper connector, 2, a middle cylinder, 3, a lower connector, 4, a bushing, 5, a through groove, 6, a pin groove, 7, an opening, 8, a driving pipe, 9, a valve seat, 10, an elastic hinge, 11, a valve plate, 12, a valve groove, 13, a side hole, 14, a screw rod, 15, a screw sleeve, 16, a motor, 17, a C-shaped support, 18, a guide groove, 19, a bolt, 20, a jaw, 21 and a hydraulic clamp head.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
A high-efficiency uninterrupted circulating valve tool comprises a bypass valve assembly, a cylinder assembly and a clamping mechanism;
referring to fig. 1 and 2, the by-pass valve assembly comprises a drive tube 8, a resilient hinge 10, a valve plate 11 and a valve seat 9.
Wherein disk seat 9 is the tubular structure, has seted up valve gate 12 and side opening 13 from top to bottom in proper order on the wall of disk seat 9, and valve plate 11 is located valve gate 12 to the top of elastic hinge 10 and valve gate 12 is articulated through the one end of valve plate 11, and the lower extreme sliding connection of driving tube 8 is equipped with the annular on the inner wall that is located disk seat 9 in the intracavity of disk seat 9, installs O type sealing washer in the annular for sealed when sliding between driving tube 8 and the disk seat 9.
Referring to fig. 3 and 4, the cartridge assembly includes an upper adapter 1, a middle cartridge 2, a lower adapter 3, and a bushing 4.
The lower extreme of 2 inner chambers of well section of thick bamboo is equipped with the mounting groove with disk seat 9 adaptation to through 3 and 2 threaded connection back with well section of thick bamboo of lower clutch encapsulate disk seat 9 inside well section of thick bamboo 2, still seted up the opening 7 that corresponds with side opening 13 position on the wall of well section of thick bamboo 2, and form the runner of colluding through opening 7 and side opening 13.
The upper end of the inner cavity of the middle barrel 2 is provided with a mounting groove matched with the lining 4, and the lining 4 is packaged inside the middle barrel 2 after the upper joint 1 is in threaded connection with the middle barrel 2.
Well section of thick bamboo 2, bush 4, disk seat 9 and driving tube 8 are located the same axis, and 8 upper end sliding connection of driving tube are in the intracavity of bush 4, are located the inner wall of bush 4 and still are equipped with the annular, install O type sealing washer in the annular for it is sealed when sliding between driving tube 8 and bush 4, and the outer wall middle part that is located driving tube 8 still is equipped with cotter way 5, and cotter way 5 is located logical 6 interior and reciprocates along with driving tube 8.
Referring to fig. 5, the clamping mechanism includes a hydraulic tong head 21, a latch 19, and an elevator.
The hydraulic tong head 21 is the same as a hydraulic tong head used for clamping a drill rod during current drilling operation, meanwhile, a jaw 20 of the hydraulic tong head 21 is matched with the periphery of the middle barrel 2, the elevator is fixedly connected to the upper end of the hydraulic tong head 21, one end of the bolt 19 is clamped with the pin slot 5, the other end of the bolt is connected with the elevator and moves up and down along with the elevator, and the driving pipe 8 is pushed to move up and down through the elevator.
The working principle is as follows:
the hydraulic tong head 20 is used for fixing the middle barrel 2 during working, and a single or upright post is connected according to a specific drilling working condition;
when the stand is connected: referring to fig. 1 and 3, when the elevator is started, the driving pipe 8 descends along with the elevator, the driving pipe 8 pushes the valve plate 11 away in the descending process, meanwhile, the side hole 13 is sealed, at the moment, the upper connector 1, the lining 4, the driving pipe 8, the valve seat 9 and the lower connector 3 are communicated to form a main channel, and the drilling fluid establishes a complete drilling fluid circulation channel through the main channel and the annulus of the well hole.
When a single is connected: referring to fig. 2 and 4, when the elevator is started, the driving pipe 8 ascends along with the elevator, and when the bottom of the driving pipe 8 is higher than the valve plate 11 in the ascending process, the valve plate 11 is supported by the elastic hinge 10 to be turned up and down to seal the inner cavity of the valve seat 9, and meanwhile, the side hole 13 is opened, at the moment, the valve seat 9, the side hole 13 on the valve seat 9 and the lower joint 3 are communicated to form a side channel, and drilling fluid establishes a circulation channel of drilling fluid in the well through the side channel and the annular space in the well.
The utility model does not need to stop the pump or interrupt the mud circulation when switching operation between the upright post and the single post, thereby ensuring the normal operation of the underground circulation, realizing stable equivalent circulating density and uninterrupted drill chip discharge during the whole drilling period, and comprehensively improving the well conditions;
especially, when the single joint is connected, the pressure fluctuation under the well is effectively avoided, the quality and the cleanliness of the well hole are improved, the well wall formed in the well drilling with the narrow well liquid density window can be ensured to be free from collapse to the maximum extent, the occurrence of well drilling accidents is greatly reduced, the possibility of well kick is reduced, and therefore the safety of the well drilling operation is improved.
Example 2
This embodiment is a further preference for an elevator, in particular an elevator comprising a screw 14, a screw housing 15, a motor 16 and a C-shaped bracket 17.
The lower end of the support 17 is fixedly connected with a hydraulic tong head 21, a longitudinal guide groove 18 is formed in the side face of the support 17, the screw rod 14 is longitudinally hinged on the support, the screw sleeve 15 is in threaded connection with the screw rod 14, one end of the plug pin 19 is fixedly connected with the screw sleeve 15, and the other end of the plug pin penetrates through the guide groove 18 and then is clamped with the pin groove 5.
The motor 16 is a brushless motor, the motor 16 is fixedly connected to the bracket, and gears which are meshed with each other for transmission are arranged on rotating shafts of the screw rod 14 and the motor 16.
The screw rod 14 is driven to rotate by the rotation of the motor 16, and the screw sleeve 15 moves up and down along with the rotating screw rod 14, so that the bolt 19 connected with the screw sleeve 15 pushes the driving pipe 8 to move up and down, and the opening and closing of the bypass valve assembly are realized.
The structure of the elevator is only a preferable mode in this embodiment, wherein the elevator can be replaced by a hydraulic cylinder or other tools with an elevating function, and the speed of the driving pipe 8 ascending and descending can be adjusted by adjusting the speed of the motor 16 in this embodiment, so that the elevator has more flexibility compared with other elevating tools with a single speed.
The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.
Claims (5)
1. An efficient uninterrupted circulating valve tool, characterized in that: comprises a bypass valve assembly, a cylinder assembly and a clamping mechanism;
the bypass valve assembly comprises a driving pipe, an elastic hinge, a valve plate and a valve seat, the valve seat is tubular, a valve groove and a side hole are formed in the wall of the valve seat, the valve plate is located in the valve groove, one end of the valve plate is hinged to the top of the valve groove through the elastic hinge, and the lower end of the driving pipe is connected with the valve seat in a sliding and sealing mode;
the cylinder assembly comprises an upper joint, a middle cylinder, a lower joint and a lining, wherein the lower joint is connected to the lower end of the middle cylinder, a valve seat is packaged in the middle cylinder through the lower joint, an opening corresponding to the position of a side hole of the valve seat is formed in the wall of the middle cylinder, the upper joint is connected to the upper end of the middle cylinder, the lining is packaged in the middle cylinder through the upper joint, the upper end of the driving pipe is connected with the lining in a sliding and sealing mode, a pin groove is further formed in the middle of the outer wall of the driving pipe, and the pin groove is located in the through groove and moves up and down along with;
the clamping mechanism comprises a hydraulic tong head, a bolt and a lifter, a jaw of the hydraulic tong head is matched with the middle barrel, the lifter is fixedly connected to the upper end of the hydraulic tong head, one end of the bolt is clamped with the pin groove, and the other end of the bolt is connected with the lifter and moves up and down along with the lifter.
2. A high efficiency, uninterrupted cycling valve tool, according to claim 1, wherein: the lifter comprises a screw rod, a screw sleeve, a motor and a C-shaped support, the lower end of the support is fixedly connected with a hydraulic tong head, a longitudinal guide groove is formed in the support, the screw rod is longitudinally hinged to the support, the screw sleeve is in threaded connection with the screw rod, one end of a bolt is fixedly connected with the screw sleeve, the other end of the bolt penetrates through the guide groove and then is clamped with a pin groove, the motor is fixedly connected to the support, and a rotating shaft of the motor is in transmission connection with the screw rod.
3. A high efficiency, uninterrupted cycling valve tool, according to claim 2, wherein: and gears which are meshed with each other are arranged at one end of the screw rod and on a rotating shaft of the motor.
4. A high efficiency, uninterrupted cycling valve tool, according to claim 1, wherein: and an annular groove is formed in the inner wall of the valve seat, and an O-shaped sealing ring is arranged in the annular groove.
5. A high efficiency, uninterrupted cycling valve tool, according to claim 1, wherein: and an annular groove is formed in the inner wall of the bushing, and an O-shaped sealing ring is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309064.0U CN211448579U (en) | 2019-12-20 | 2019-12-20 | Efficient uninterrupted circulating valve tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309064.0U CN211448579U (en) | 2019-12-20 | 2019-12-20 | Efficient uninterrupted circulating valve tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448579U true CN211448579U (en) | 2020-09-08 |
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ID=72320604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922309064.0U Active CN211448579U (en) | 2019-12-20 | 2019-12-20 | Efficient uninterrupted circulating valve tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211448579U (en) |
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2019
- 2019-12-20 CN CN201922309064.0U patent/CN211448579U/en active Active
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