CN210033344U - Hydraulic control type underground releasing device - Google Patents
Hydraulic control type underground releasing device Download PDFInfo
- Publication number
- CN210033344U CN210033344U CN201920588550.8U CN201920588550U CN210033344U CN 210033344 U CN210033344 U CN 210033344U CN 201920588550 U CN201920588550 U CN 201920588550U CN 210033344 U CN210033344 U CN 210033344U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- adjusting
- piston
- joint
- upper joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a hydraulic control type underground releasing device, which mainly comprises an upper joint, a positioning steel ball, a piston, a pressing sleeve, a spring, a lower joint, an adjusting nut, an adjusting steel ball, a sealing ring and a pressure-holding steel ball, and is characterized in that the upper joint is connected with the lower joint through the positioning steel ball, the positioning steel ball is limited by the piston so as to avoid falling off, the piston is limited by the adjusting steel ball to axially move, the adjusting nut is fixed on the upper joint, the adjusting steel ball acts on the pressing sleeve, and the spring is arranged between the pressing sleeve and the adjusting nut; when the releasing operation is carried out, a pressure-holding steel ball is put into the pipe column, the drilling pump is started to hold pressure, when the piston moves downwards to the bottom of the upper joint, the positioning steel ball slides out of the arc groove, and the upper joint is separated from the lower joint, so that the releasing of the downhole tool can be realized. The utility model discloses simple structure, convenient operation is applicable to the well completion operation.
Description
Technical Field
The utility model relates to a downhole tool, especially a hydraulic control type is device of giving up in pit belongs to mechanical engineering or oil gas engineering technical field.
Background
In oil completion processes, downhole tools such as packers or completion strings are often left at various locations downhole to meet various process requirements. In the prior art, the purpose is mainly realized through a downhole releasing joint, a tool or a pipe column required to be lowered is connected with the releasing joint during operation, and the downhole tool or the pipe column is separated from an upper-end connecting pipe column by controlling the releasing joint when the tool or the pipe column is lowered to a target position.
At present, the main releasing tool at home adopts a hydraulic control mode, a steel ball is put into the releasing tool to block a channel for the fluid to flow downwards, then a slurry pump is started to form pressure-holding, a connecting pin is cut off, and the upper part and the lower part of the releasing tool are separated. The patent (CN 205154047U) discloses a ball throwing type releasing joint, by throwing a steel ball, when the steel ball reaches the top of a sliding sleeve and blocks a fluid descending channel, a slurry pump is started, the sliding sleeve is pushed to move downwards under the action of liquid pressure to cut off shear pins, then the sliding sleeve continues to move downwards to release the blocked steel ball, and at the moment, the upper joint and the lower joint are not connected by the steel ball, so that the upper joint and the lower joint can be separated, and the tool releasing is realized. However, the manner in which the pipe string is separated by the shear pin is less reliable. Therefore, the development of the releasing device which is tried to be used for construction of the large-inclination directional well or the horizontal well is of great significance.
Disclosure of Invention
The utility model aims at: in order to overcome the difficulties, the hydraulic control type underground releasing device is particularly provided.
In order to achieve the above purpose, the utility model discloses a technical scheme is:
the utility model provides a hydraulic control type is device of giving up in pit, mainly comprises top connection, location steel ball, piston, pressure cover, spring, lower clutch, adjusting nut, regulation steel ball, sealing washer and the steel ball of holding out the pressure, its characterized in that: the upper joint is provided with positioning holes, adjusting holes and inserting grooves, and the number of the positioning holes and the inserting grooves is four and the positioning holes and the inserting grooves are uniformly distributed along the circumferential direction of the upper joint; the number of the adjusting holes is two, and the adjusting holes are symmetrically arranged along the circumferential direction of the upper joint; the positioning steel balls are assembled in the positioning holes and are used for connecting the upper joint and the lower joint; the piston is assembled in the upper joint, and an annular groove is formed in the lower end of the piston and is used for being matched with the adjusting steel ball to limit the axial movement of the piston; the pressing sleeve is provided with a supporting surface and a pressing surface, the pressing sleeve is arranged on the upper joint, the supporting surface acts on the upper end of the spring, and the adjusting steel balls arranged in the adjusting holes are pressed into the annular groove of the piston through the pressing surface; the upper end of the spring acts on the supporting surface, and the lower end of the spring acts on the adjusting nut; the lower connector is provided with four inserting lugs and arc grooves, and the four inserting lugs are inserted into the inserting grooves of the upper connector; the arc groove is used for assembling and positioning steel balls; the adjusting nut is connected to the upper joint through threads and used for adjusting the pressure of the spring; when the releasing operation is carried out, a pressure-holding steel ball is put into the pipe column, the drilling pump is started to hold pressure, when the piston moves downwards to the bottom of the upper joint, the positioning steel ball slides out of the arc groove, and the upper joint is separated from the lower joint, so that the releasing of the downhole tool can be realized.
Compared with the prior art, the utility model discloses the beneficial effect who has is: (1) the hydraulic control type underground releasing device controls the releasing device to realize releasing by starting a drilling mud pump, and is simple and reliable to operate; (2) the hydraulic control type underground releasing device is not only suitable for a vertical well, but also suitable for drilling operation of a directional well, a horizontal well and the like.
Drawings
Fig. 1 is a schematic structural view of a hydraulic control type downhole releasing device of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of C-C of FIG. 1;
FIG. 5 is a schematic structural diagram of an upper joint of a hydraulic control type downhole releasing device according to the present invention;
FIG. 6 is a schematic structural diagram of a lower joint of a hydraulic-control type downhole releasing device according to the present invention;
FIG. 7 is a schematic structural view of a pressing sleeve in the hydraulic control type downhole releasing device of the present invention;
FIG. 8 is a schematic structural view of the present invention when a pressure-building steel ball is dropped;
FIG. 9 is a schematic view of the structure of the present invention when the piston moves down after the pressure build-up steel ball is dropped;
FIG. 10 is a schematic structural view of the present invention when the piston moves downward and the positioning steel ball falls off after the pressure-building steel ball is dropped;
in the figure: 1. the device comprises an upper connector, a positioning hole 1a, an adjusting hole 1b, an inserting groove 1c, a positioning steel ball 2, a piston 3, a pressing sleeve 4, a supporting surface 4a, a pressing surface 4b, a spring 5, a lower connector 6, an inserting lug 6a, an arc groove 6b, an adjusting nut 7, an adjusting steel ball 8, a sealing ring 9 and a pressure-holding steel ball 10.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-7, a hydraulic control type downhole releasing device mainly comprises an upper joint 1, a positioning steel ball 2, a piston 3, a pressing sleeve 4, a spring 5, a lower joint 6, an adjusting nut 7, an adjusting steel ball 8, a sealing ring 9 and a pressure-holding steel ball 10, and is characterized in that: the upper connector 1 is provided with positioning holes 1a, adjusting holes 1b and inserting grooves 1c, the number of the positioning holes 1a and the inserting grooves 1c is four, and the positioning holes 1a and the inserting grooves 1c are uniformly distributed along the circumferential direction of the upper connector 1; the number of the adjusting holes 1b is two, and the adjusting holes are symmetrically arranged along the circumferential direction of the upper joint 1; the positioning steel balls 2 are assembled in the positioning holes 1a and are used for connecting the upper joint 1 and the lower joint 6; the piston 3 is assembled in the upper joint 1, and an annular groove is formed in the lower end of the piston 3 and is used for being matched with the adjusting steel ball 8 to limit the axial movement of the piston 3; the pressing sleeve 4 is provided with a supporting surface 4a and a pressing surface 4b, the pressing sleeve 4 is sleeved on the upper connector 1, the supporting surface 4a acts on the upper end of the spring 5, and the adjusting steel ball 8 arranged in the adjusting hole 1b is pressed into the annular groove of the piston 3 through the pressing surface 4 b; the upper end of the spring 5 acts on the supporting surface 4a, and the lower end acts on the adjusting nut 7; the lower connector 6 is provided with four insertion lugs 6a and arc grooves 6b, and the four insertion lugs 6a are inserted into the insertion grooves 1c of the upper connector 1; the arc groove 6b is used for assembling and positioning the steel ball 2; the adjusting nut 7 is connected to the upper joint 1 through threads and used for adjusting the pressure of the spring 5; when the releasing operation is carried out, a pressure-holding steel ball 10 is put into the pipe column, the drilling pump is started to hold pressure, when the piston 3 moves downwards to the bottom of the upper joint 1, the positioning steel ball 2 slides out of the arc groove 6b, and the upper joint 1 is separated from the lower joint 6, so that the releasing of the downhole tool can be realized.
The above-described embodiments are intended to be illustrative of the present patent and not to limit the scope of the patent, and any equivalent changes and modifications that may be made by one skilled in the art without departing from the spirit and principles of the patent are intended to be covered by the present patent system.
Claims (1)
1. The utility model provides a hydraulic control type is device of giving up in pit, mainly comprises top connection (1), location steel ball (2), piston (3), pressure cover (4), spring (5), lower clutch (6), adjusting nut (7), regulation steel ball (8), sealing washer (9) and suppress pressure steel ball (10), its characterized in that: the upper connector (1) is provided with positioning holes (1a), adjusting holes (1b) and inserting grooves (1c), the number of the positioning holes (1a) and the number of the inserting grooves (1c) are four, and the positioning holes and the inserting grooves are uniformly distributed along the circumferential direction of the upper connector (1); the number of the adjusting holes (1b) is two, and the adjusting holes are symmetrically arranged along the circumferential direction of the upper joint (1); the positioning steel balls (2) are assembled in the positioning holes (1a) and are used for connecting the upper joint (1) and the lower joint (6); the piston (3) is assembled in the upper joint (1), and an annular groove is formed in the lower end of the piston and used for being matched with the adjusting steel ball (8) to limit the axial movement of the piston (3); the pressing sleeve (4) is provided with a supporting surface (4a) and a pressing surface (4b), the pressing sleeve (4) is sleeved on the upper connector (1), the supporting surface (4a) acts on the upper end of the spring (5), and an adjusting steel ball (8) installed in the adjusting hole (1b) is pressed into an annular groove of the piston (3) through the pressing surface (4 b); the upper end of the spring (5) acts on the supporting surface (4a), and the lower end acts on the adjusting nut (7); the lower connector (6) is provided with four insertion lugs (6a) and arc grooves (6b), and the four insertion lugs (6a) are inserted into the insertion grooves (1c) of the upper connector (1); the arc groove (6b) is used for assembling and positioning the steel balls (2); the adjusting nut (7) is connected to the upper joint (1) through threads and used for adjusting the pressure of the spring (5); when releasing operation is carried out, a pressure-holding steel ball (10) is put into the pipe column, the drilling pump is started to hold pressure, when the piston (3) moves downwards to the bottom of the upper joint (1), the positioning steel ball (2) slides out of the arc groove (6b), and the upper joint (1) is separated from the lower joint (6), so that the releasing of the downhole tool can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588550.8U CN210033344U (en) | 2019-04-27 | 2019-04-27 | Hydraulic control type underground releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588550.8U CN210033344U (en) | 2019-04-27 | 2019-04-27 | Hydraulic control type underground releasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210033344U true CN210033344U (en) | 2020-02-07 |
Family
ID=69361996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920588550.8U Expired - Fee Related CN210033344U (en) | 2019-04-27 | 2019-04-27 | Hydraulic control type underground releasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210033344U (en) |
-
2019
- 2019-04-27 CN CN201920588550.8U patent/CN210033344U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201650256U (en) | Ball seat type cracking slide sleeve | |
| US2998085A (en) | Rotary hammer drill bit | |
| CN201991465U (en) | Multifunctional well drilling pipe column air operated slip | |
| CN202300332U (en) | Underground grading device for plunger gas production system and multistage plunger gas production system | |
| CN105443057A (en) | Torque-withstanding type double-acting releasing tool | |
| CN116927675B (en) | Blowout prevention connector with pressure release mechanism for oil pump | |
| CN204024576U (en) | A kind of packer | |
| CN2856407Y (en) | Perforating and fracturing combined pipe column for horizontal well | |
| CN204386512U (en) | A kind of producing well disc type air operated slips | |
| CN210033344U (en) | Hydraulic control type underground releasing device | |
| CN202914019U (en) | Packer seat sealing mechanism for coiled tubing | |
| CN107882514B (en) | Release type compensator | |
| CN214944120U (en) | Hydraulic control type drill rod dynamic anchor | |
| CN108060901B (en) | Release mechanism for open hole patching tool of equal-well-diameter expansion casing | |
| CN203515413U (en) | Mechanical and hydraulic dual-action ground anchor assembly | |
| CN112343564B (en) | Gas well underground throttler air faucet automatic falling mechanism and use method | |
| CN210033384U (en) | Underground anti-blocking oil extraction device | |
| CN104314485B (en) | A kind of producing well disc type air operated slips | |
| CN201687422U (en) | Self-seal lifting type tubing anchor device | |
| CN201103379Y (en) | Oil tube discharging device | |
| CN110847822A (en) | Remote control diameter-variable stabilizer | |
| CN211647989U (en) | Remote control diameter-variable stabilizer | |
| CN109184624B (en) | Well-closing-free type continuous lifting plunger drainage and extraction device and construction method | |
| CN108005620B (en) | Lifting type self-suspension expansion screen pipe expanding device | |
| CN109750989B (en) | Rotary drill string directional drilling short joint and drilling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210427 |