CN118065790A - Electric casting and fishing device for blanking plug - Google Patents
Electric casting and fishing device for blanking plug Download PDFInfo
- Publication number
- CN118065790A CN118065790A CN202211482596.4A CN202211482596A CN118065790A CN 118065790 A CN118065790 A CN 118065790A CN 202211482596 A CN202211482596 A CN 202211482596A CN 118065790 A CN118065790 A CN 118065790A
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- China
- Prior art keywords
- blanking
- screw
- fishing
- rod
- reciprocating mechanism
- Prior art date
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- 238000005266 casting Methods 0.000 title claims description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 10
- 238000010008 shearing Methods 0.000 claims description 7
- 241000242541 Trematoda Species 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 241000935974 Paralichthys dentatus Species 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides an electric blanking and fishing device for a blanking plug, and belongs to the technical field of blanking plug blanking and fishing. The invention comprises an anchoring mechanism for fixing a tool string, a reciprocating mechanism, a throwing and dragging blocking reciprocating mechanism and a computer control system for controlling the reciprocating mechanism and the throwing and dragging blocking reciprocating mechanism. The device is characterized in that an operator controls a computer control system to transmit through a cable, and a driving motor provides rotary power; the anchoring mechanism stably fixes the downhole tool string on the oil pipe; and after receiving the instruction, the plugging and throwing-in and fishing-out reciprocating mechanism completes the plugging and throwing-in and fishing-out actions. The operation is time-saving and labor-saving, the throwing and fishing force is improved by 3-4 times, the calculation of the throwing and fishing force is accurate and controllable, and the labor intensity and the operation cost of workers are reduced.
Description
Technical Field
The invention relates to an electric blanking and fishing device for a blanking plug, and belongs to the technical field of blanking plug blanking and fishing.
Background
Liaohe oil field is in an important stage of gas drive oil extraction and gas storage construction, and for gas injection and gas production wells, a series of plugging and fishing operation processes are needed before gas injection. The traditional casting and fishing blocking operation process adopts steel wire operation to cast and drag for blocking. The construction process is to utilize wire rope to lower the packer to the setting joint of preset position to realize the shutoff of oil pipe, and then realize the packer and set oil sleeve annular space, utilize wire rope to drag for the balancing pole with the blanking plug instrument after setting. The power equipment of the conventional steel wire casting and fishing blocking operation process is on the ground, the preset casting and fishing force is transmitted to the casting and fishing blocking tool from the ground through the steel wire rope, the blocks found by deep exploration are successively cast and developed along with the last decade, deep wells with the depths of about two to three kilometers are more and more, the loss of the casting and fishing force transmitted to the casting and fishing blocking tool through the steel wire rope is larger and lower along with the deepening of the well depth, the phenomenon of blocking setting failure occurs, 2-4 times are needed for completing one-time construction, 4-6 times are needed for a large number, and the situation of lifting or steel wire breaking and falling frequently occurs when the blanking plug is cast and fished under the influence of the strength of the steel wire. Greatly reduces the operation efficiency, increases the operation cost, seriously influences the development of the well repair operation, is influenced by the well site environment, and often has low success rate. In order to meet the production requirements of cost reduction and efficiency improvement and quality improvement of an operation system, it is extremely important to design a novel blanking plug throwing and fishing device.
Disclosure of Invention
In order to solve the problems in the prior art, the invention discloses an electric casting and fishing device for a blanking plug, which replaces the traditional steel wire rope transmission operation with the cable transmission operation, so that casting and fishing force can not be transmitted loss, but directly acts on a casting and fishing blanking tool, and the problems of low casting and fishing efficiency, high operation cost and broken and taken-off steel wire ropes are solved.
The technical scheme adopted by the invention is as follows: an electric blanking and fishing device of a blanking plug comprises an anchoring mechanism for fixing a tool string, a reciprocating mechanism, a blanking and fishing blanking and blocking reciprocating mechanism and a computer control system for controlling the reciprocating mechanism and the blanking and fishing blanking and blocking reciprocating mechanism.
The reciprocating mechanism consists of an output shaft of a motor A, a screw rod, bearings, a bearing baffle ring, a center rod, a screw rod nut and an outer cylinder, wherein the output shaft of the motor A is in abnormal-shaped hole connection with the screw rod, two bearings are arranged at the screw rod, the bearing baffle ring is in threaded connection with the outer cylinder, the screw rod nut is in threaded connection with the screw rod, and the screw rod nut is in threaded connection with the center rod.
The anchoring mechanism consists of an anchor body, a piston, a force transfer medium, a central rod, flukes, a pressing plate, screws and springs, wherein the piston and the central rod are sequentially arranged at the inner side of the anchor body, the force transfer medium is arranged at the lower ends of the piston and the central rod, the flukes are arranged in side holes of the anchor body, the pressing plate is connected with the anchor body through the screws, one end of each spring is connected with the pressing plate, the other end of each spring is connected with the flukes, and two ends of each anchor body are connected with an outer cylinder of the reciprocating mechanism through threads.
The throwing and fishing blocking reciprocating mechanism consists of an output shaft of a motor B, a screw rod, a bearing baffle ring, a screw rod nut, a push rod, an outer cylinder, a locking ring, a baffle ring, a shearing pin and a lower joint. The output shaft of the motor B is in special-shaped hole connection with the screw rod, two bearings are arranged at the screw rod, a screw rod nut is in threaded connection with the screw rod, a bearing baffle ring is in threaded connection with the outer cylinder, a guide key is arranged at the upper part of the screw rod nut and matched with a guide groove at the outer cylinder, the screw rod nut is in threaded connection with a push rod, the push rod is in threaded connection with a locking ring, a baffle ring and the locking ring are arranged between the push rod and the lower joint, the baffle ring and the locking ring are in threaded connection with the lower joint respectively, and the push rod is in shearing pin connection with the lower joint.
The computer control system is electrically connected with the motor A and the motor B respectively.
The computer control system has the functions of displaying voltage values, current values, stroke positions and overload protection.
The upper part of the screw nut of the reciprocating mechanism is provided with a guide key which is matched with the guide groove in the outer cylinder, when the screw rotates, the screw nut is limited to rotate, the screw nut can only move linearly, the screw nut is in threaded connection with a central rod, and the central rod is an output end of linear movement.
The spring is any one of a cylindrical spring, a combined spring and a rectangular spring.
Working principle: the computer control system drives the motor A to rotate positively to drive the screw rod to rotate, so that the center rod moves downwards, the force transmission medium in the cavity is compressed, the pressure is increased, the radial force applied to the fluke is increased, and the fluke extends out and is anchored to the oil pipe; the computer control system drives the motor A to reversely rotate to drive the screw rod to reversely rotate, the reverse rotation force of the screw rod is converted into a straight force to drive the screw rod nut to move upwards, so that the central rod moves upwards, the pressure is reduced, the radial force applied to the fluke is reduced, and the fluke is reset under the action of the spring; the computer control system drives the motor B to rotate positively to drive the screw rod to rotate so as to realize downward movement of the push rod, the push rod cuts off the shearing pin, the push rod continues to advance, the push rod drives the lower joint to move downwards, and then the plugging and fishing tool string is driven to realize setting; the computer control system drives the motor B to rotate reversely to drive the screw rod to rotate, so that the push rod moves upwards, the baffle ring is in threaded connection with the lower connector, and the locking ring can only retract and cannot advance, so that the push rod drives the lower connector and a tool connected with the lower connector to move upwards together.
The beneficial effects of the invention are as follows:
(1) The device is characterized in that an operator controls a computer control system to transmit through a cable, and a driving motor provides rotary power; the anchoring mechanism stably fixes the downhole tool string on the oil pipe; and after receiving the instruction, the plugging and throwing-in and fishing-out reciprocating mechanism completes the plugging and throwing-in and fishing-out actions. The operation is time-saving and labor-saving, the throwing and fishing force is improved by 3-4 times, the calculation of the throwing and fishing force is accurate and controllable, and the labor intensity and the operation cost of workers are reduced.
(2) The double-driving structure is adopted, the mechanical structure is simplified, the anchoring and the throwing are controlled respectively, and the implementation is easy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a reciprocating mechanism of an electric blanking device of a blanking plug;
FIG. 2 is a schematic view of an anchoring mechanism of an electric blanking device of the blanking plug;
fig. 3 is a schematic view of a reciprocating mechanism for throwing and fishing the plug of the electric throwing and fishing device of the plug.
The serial numbers in the figures illustrate: 1. the motor A output shaft, 2, the bearing baffle ring, 3, the lead screw, 4, the bearing, 5, the lead screw nut, 6, the center rod, 7, the outer cylinder, 8, the anchor body, 9, the piston, 10, the force transmission medium, 11, the center rod, 12, the fluke, 13, the pressing plate, 14, the screw, 15, the spring, 16, the motor B output shaft, 17, the lead screw, 18, the bearing, 19, the bearing baffle ring, 20, the lead screw nut, 21, the push rod, 22, the outer cylinder, 23, the locking ring, 24, the baffle ring, 25, the shear pin, 26 and the lower joint.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For a further understanding of the invention, the invention is described in detail below with reference to the drawings and examples:
Example 1:
As shown in fig. 1 to 3, an electric blanking-and-fishing device for a blanking plug comprises an anchoring mechanism for fixing a tool string, a reciprocating mechanism, a blanking-and-fishing-up reciprocating mechanism and a computer control system for controlling the reciprocating mechanism and the blanking-and-fishing blanking-and-up reciprocating mechanism.
The reciprocating mechanism consists of a motor A output shaft 1, a screw rod 3, bearings 4, a bearing baffle ring 2, a center rod 6, a screw rod nut 5 and an outer cylinder 7, wherein the motor A output shaft 1 is in abnormal-shaped hole connection with the screw rod 3, two bearings 4 are arranged at the screw rod 3, the bearing baffle ring 2 is in threaded connection with the outer cylinder 7, the screw rod nut 5 is in threaded connection with the screw rod 3, and the screw rod nut 5 is in threaded connection with the center rod 6.
The anchoring mechanism comprises an anchor body 8, a piston 9, a force transfer medium 10, a center rod 11, an anchor claw 12, a pressing plate 13, a screw 14 and a spring 15, wherein the piston 9 and the center rod 11 are sequentially arranged on the inner side of the anchor body 8, the force transfer medium 10 is arranged at the lower ends of the piston 9 and the center rod 11, the anchor claw 12 is arranged in a side hole of the anchor body 8, the pressing plate 13 is connected with the anchor body 12 through the screw, one end of the spring 15 is connected with the pressing plate 13, the other end of the spring 15 is connected with the anchor claw 12, and two ends of the anchor body 8 are in threaded connection with the outer cylinder 7 of the reciprocating mechanism.
The casting and fishing blocking reciprocating mechanism consists of an output shaft 16 of a motor B, a screw rod 17, a bearing 18, a bearing baffle ring 19, a screw rod nut 20, a push rod 21, an outer cylinder 22, a locking ring 23, a baffle ring 24, a shearing pin 25 and a lower joint 26. The motor B output shaft 16 is in special-shaped hole connection with the screw rod 17, two bearings 18 are arranged at the screw rod 17, a screw nut 20 is in threaded connection with the screw rod 17, a bearing baffle ring 19 is in threaded connection with the outer cylinder 22, a guide key is arranged at the upper part of the screw nut 20 and matched with a guide groove at the outer cylinder 22, the screw nut 20 is in threaded connection with a push rod 21, the push rod 21 is in threaded connection with a locking ring 23, a baffle ring 24 and the locking ring 23 are arranged between the push rod 21 and a lower joint 26, the baffle ring 24 and the locking ring 23 are respectively in threaded connection with the lower joint 26, and the push rod 21 is connected with the lower joint 26 through a shearing pin 25.
The computer control system is electrically connected with the motor A and the motor B respectively.
The computer control system has the functions of displaying voltage values, current values, stroke positions and overload protection.
The upper part of a screw nut 5 of the reciprocating mechanism is provided with a guide key which is matched with a guide groove in the outer cylinder 7, when the screw 3 rotates, the rotation of the screw nut 5 is limited, the screw nut 5 can only move linearly, the screw nut 5 is in threaded connection with a central rod 6, and the central rod 6 is an output end of linear movement.
The spring 15 is any one of a cylindrical spring, a combined spring and a rectangular spring.
The computer control system is a computer control terminal of the instrument vehicle.
The traditional steel wire operation is thrown and dragged to provide a pulling force not more than 1 ton, the device adopts cable transmission to provide a pulling force of 3-4 tons, and compared with the steel wire operation, the device has the advantage that the cable throwing and dragging force is improved by 3-4 times.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. The electric blanking and fishing device for the blanking plug is characterized by comprising an anchoring mechanism for fixing a tool string, a reciprocating mechanism, a blanking and fishing blanking and blanking reciprocating mechanism and a computer control system for controlling the reciprocating mechanism and the blanking and fishing blanking and blanking reciprocating mechanism;
The reciprocating mechanism consists of a motor A output shaft (1), a screw rod (3), bearings (4), a bearing baffle ring (2), a center rod (6), a screw rod nut (5) and an outer cylinder (7), wherein the motor A output shaft (1) is connected with the screw rod (3) through special-shaped holes, two bearings (4) are arranged at the screw rod (3), the bearing baffle ring (2) is connected with the outer cylinder (7), and the screw rod nut (5) is respectively connected with the screw rod (3) and the center rod (6);
the anchoring mechanism consists of an anchor body (8), a piston (9), a force transfer medium (10), a central rod (11), flukes (12), a pressing plate (13), screws (14) and springs (15), wherein the piston (9) and the central rod (11) are sequentially arranged on the inner side of the anchor body (8), the force transfer medium (10) is arranged at the lower ends of the piston (9) and the central rod (11), the flukes (12) are arranged in side holes of the anchor body (8), the pressing plate (13) is connected with the anchor body (12) through screws, one end of each spring (15) is connected with the pressing plate (13), the other end of each spring (15) is connected with each flukes (12), and two ends of the anchor body (8) are in threaded connection with an outer cylinder (7) of the reciprocating mechanism;
The casting and fishing blocking reciprocating mechanism consists of an output shaft (16) of a motor B, a screw (17), a bearing (18), a bearing baffle ring (19), a screw nut (20), a push rod (21), an outer cylinder (22), a locking ring (23), a baffle ring (24), a shearing pin (25) and a lower joint (26); the motor B is characterized in that an output shaft (16) of the motor B is connected with a screw (17), a bearing (18) is arranged at the screw (17), a screw nut (20) is connected with the screw (17), a bearing baffle ring (19) is in threaded connection with an outer cylinder (22), a guide key is arranged at the upper part of the screw nut (20) and is matched with a guide groove at the position of the outer cylinder (22), the screw nut (20) is in threaded connection with a push rod (21), the push rod (21) is in threaded connection with a locking ring (23), a baffle ring (24) and the locking ring (23) are arranged between the push rod (21) and a lower joint (26), the baffle ring (24) and the locking ring (23) are in threaded connection with the lower joint (26) respectively, and the push rod (21) is connected with the lower joint (26) through a shearing pin (25);
The computer control system is electrically connected with the motor A and the motor B respectively.
2. The electric blanking and fishing device of the blanking plug according to claim 1, wherein the bearing baffle ring (2) is in threaded connection with the outer cylinder (7).
3. The electric blanking and fishing device of the blanking plug according to claim 1, wherein the screw nut (5) is in threaded connection with the screw (3).
4. The electric blanking and fishing device of the blanking plug according to claim 1, wherein the screw nut (5) is in threaded connection with the central rod (6).
5. The electric blanking and fishing device of the blanking plug according to claim 1, wherein the screw nut (20) is in threaded connection with the screw (17).
6. The electric blanking and fishing device of the blanking plug of claim 1, wherein the output shaft (16) of the motor B is connected with the screw rod (17) through a special-shaped hole.
7. The electric blanking and fishing device of the blanking plug according to claim 1, wherein two bearings (18) are arranged at the screw (17).
8. The electric blanking and fishing device of the blanking plug according to claim 1, wherein the spring (15) is any one of a cylindrical spring, a combined spring and a rectangular spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211482596.4A CN118065790A (en) | 2022-11-24 | 2022-11-24 | Electric casting and fishing device for blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211482596.4A CN118065790A (en) | 2022-11-24 | 2022-11-24 | Electric casting and fishing device for blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118065790A true CN118065790A (en) | 2024-05-24 |
Family
ID=91104573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211482596.4A Pending CN118065790A (en) | 2022-11-24 | 2022-11-24 | Electric casting and fishing device for blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118065790A (en) |
-
2022
- 2022-11-24 CN CN202211482596.4A patent/CN118065790A/en active Pending
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