CN114482919A - Fracturing temporary plugging agent delivery device and working method thereof - Google Patents
Fracturing temporary plugging agent delivery device and working method thereof Download PDFInfo
- Publication number
- CN114482919A CN114482919A CN202210280445.4A CN202210280445A CN114482919A CN 114482919 A CN114482919 A CN 114482919A CN 202210280445 A CN202210280445 A CN 202210280445A CN 114482919 A CN114482919 A CN 114482919A
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- Prior art keywords
- manipulator
- channel
- temporary plugging
- fracturing
- counter
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- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims description 33
- 230000009471 action Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 28
- 230000000903 blocking effect Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 238000005086 pumping Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
Abstract
The invention discloses a fracturing temporary plugging agent delivery device and a working method thereof. By adopting the fracturing temporary plugging agent delivery device, the temporary plugging ball is delivered into the high-pressure channel from the low-pressure channel in the delivery process, and the two sealing mechanisms are switched according to the sequence of successive replacement in the whole process, so that the high-pressure liquid is prevented from overflowing and leaking, and the equipment and operation safety is ensured.
Description
Technical Field
The invention relates to the technical field of oil and gas field development, in particular to a fracturing temporary plugging agent delivery device.
Background
Fracturing is a commonly applied production increase measure in the development of oil and gas fields at present, and particularly, fracturing transformation must be carried out in the development of low-permeability oil and gas reservoirs to obtain a good effect.
In the construction process, on the basis of pressing open the crack, a temporary plugging agent is required to be added to generate filter cake bridging at the crack or a high permeability layer, so that subsequent working fluid cannot enter, and the new crack is pressed open again, the longitudinal new layer is opened, and the plane crack is diverted. Because a high-strength filter cake layer needs to be generated, the strength of the particle temporary plugging agent is required to be high, and if the particle temporary plugging agent is added from the sand mulling equipment, the particle temporary plugging agent can damage the pump head of the pumping equipment in the pumping process of the pumping equipment; the high-pressure feeding device directly fed into the high-pressure manifold is large and heavy, the feeding amount is still limited, and a large amount of particle temporary plugging agent remains in the feeding process. Therefore, the current common method for the operation site is as follows: the pressure of the high-pressure manifold is released, the particle temporary plugging agent is pushed to the high-pressure manifold, and then the pushing liquid is pumped by pumping equipment to push the particle temporary plugging agent to a shaft, so that the particle temporary plugging agent does not pass through the pumping equipment any more, and the damage to the pump head of the pumping equipment is avoided.
In addition, the conventional temporary plugging agent is in a solid spherical shape or a fiber knot shape, cannot pass through a high-pressure pump head, and needs to be delivered from a high-pressure pipeline at the rear end when in use. The temporary plugging agent is delivered with technical intervals to avoid accumulation or winding in the pipeline.
Consequently, design a novel fracturing temporary plugging agent and deliver device, the safe problem of puting in of temporary plugging agent in the solution fracturing operation has great meaning.
Disclosure of Invention
The invention aims to provide a fracturing temporary plugging agent delivery device and a working method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a device is delivered to temporary stifled agent of fracturing, is including delivering the device body, the top of delivering the device body is equipped with the storage storehouse, the bottom in storage storehouse forms thin neck, be equipped with the counter that is located the storage storehouse inside in the thin neck, this internal manipulator that is equipped with of delivery device, the manipulator is located the below of thin neck, and the one end of manipulator is equipped with the check valve.
The inner wall surface of the thin neck part is provided with a ball passing channel parallel to the axial direction of the thin neck part, and the cross section of the ball passing channel is approximately semicircular.
The counter is cylindrical, a spiral groove which spirally extends around the wall surface from top to bottom is arranged on the outer wall surface of the counter matched with the thin neck part, the number of turns of the spiral groove around the wall surface is at least 1, the section of the spiral groove is approximately semicircular, and a temporary plugging ball is stored in a cavity formed by each turn of the spiral groove and the ball passing channel; the cavity formed by the spiral groove and the ball passing channel at the lowest part is communicated with the delivery channel in the delivery device body.
One end of the manipulator is connected with the screw, and the screw is driven to rotate by the motor so as to drive the manipulator to reciprocate.
The check valve is characterized in that a sealing ring and a valve plate are arranged in the check valve, a valve body of the check valve is of a T-shaped three-way structure, one end of the check valve is connected with a main channel, and two ends of the main channel are union threads and are connected with a fracturing pipeline of a pump truck.
Wherein, the upper part of the storage bin is a cylindrical barrel, and the lower part of the storage bin is funnel-shaped; the top of the storage bin is provided with a charging hole.
The manipulator and the main channel are in the same plane, the axial direction of the manipulator is perpendicular to the axial direction of the main channel, and the manipulator is connected to the delivery device body through a flange and driven by a servo motor.
The storage bin is vertically arranged and is fixedly connected to the delivery device body through a flange; the upper end of the counter is fixedly connected with a cover plate at the top of the storage bin through a bearing box, and the counter is driven by a stepping motor.
The motor control system further comprises a controller, wherein the controller is connected with all the motors through cables and controls the motors to operate.
The working method of the fracturing temporary plugging agent delivery device is characterized by comprising the following steps of:
(1) the screw rod is driven by the motor to drive the mechanical arm to do linear reciprocating motion, the temporary plugging ball fed into the delivery channel is pushed forward, and the mechanical arm is firstly contacted with the sealing ring to form the isolation of the delivery channel and the storage bin;
(2) the manipulator continues to move forward, the valve plate of the check valve is jacked open, and the temporary plugging ball is sent into the main channel;
(3) the mechanical arm starts to retract after reaching the top point, the valve plate rebounds and closes first to ensure that the delivery channel is isolated from the high-pressure liquid of the main channel, and then the mechanical arm continues to retract to release the sealing ring and retract to the original position;
(4) and (4) controlling the counter by a stepping motor, repeating the steps (1) to (3) according to the time period required by construction, and carrying out ball sending action.
Compared with the prior art, the invention has the outstanding effects that:
(1) the fracturing temporary plugging agent delivery device solves the problem of safe delivery of the temporary plugging agent in fracturing operation, can realize automatic delivery of the fracturing temporary plugging agent without stopping a pump in high-pressure operation, and improves the operation safety through remote control and automatic control.
(2) The fracturing temporary plugging agent delivery device disclosed by the invention realizes automatic counting and also realizes the purpose of delivering temporary plugging balls at intervals; in the delivery process, the temporary plugging ball is delivered into the high-pressure channel from the low-pressure channel, and in the whole process, the two groups of sealing mechanisms are switched according to the sequence of replacement, so that the high-pressure liquid is prevented from overflowing and leaking, and the safety of equipment and operation is ensured.
The fracture temporary plugging agent delivery device and the working method thereof are further described in the following with reference to the description of the attached drawings and specific embodiments.
Drawings
FIG. 1 is a cross-sectional view of a fracturing plugging agent delivery device;
FIG. 2 is a schematic perspective half-section view of a storage bin;
FIG. 3 is a partial cross-sectional view of a fracturing plugging agent delivery device;
FIG. 4 is a top view taken along the line "A-A" in FIG. 3;
FIG. 5 is a schematic view of a half-section of a storage chamber in a fitted relationship with a counter;
fig. 6 is a perspective view of the lower part of the counter.
Wherein, 1-a storage bin; 2-a charging port; 3-a counter; 4-delivering the device body; 5-a screw; 6-a manipulator; 7-sealing body; 8-a sealing ring; 9-a valve plate; 10-a valve body; 11-a check valve; 12-thin neck;
101-ball passing channel; 102-a main channel; 103-helical groove.
Detailed Description
As shown in fig. 1-6, a fracturing temporary plugging agent delivery device comprises a delivery device body 4, a storage bin 1 is arranged above the delivery device body 4, a thin neck portion 12 is formed at the bottom of the storage bin 1, a counter 3 located inside the storage bin 1 is arranged in the thin neck portion 12, a manipulator 6 is arranged in the delivery device body 4, the manipulator 6 is located below the thin neck portion 12, and a check valve 11 is arranged at one end of the manipulator 6.
The inner wall surface of the thin neck part 12 is provided with a ball passing channel 101 parallel to the axial direction of the thin neck part 12, and the cross section of the ball passing channel 101 is approximately semicircular. The counter 3 is cylindrical, wherein the outer wall surface of the counter 3 matched with the thin neck part 12 is provided with a spiral groove 103 which spirally extends from top to bottom around the wall surface, the number of turns of the spiral groove 103 around the wall surface is at least 1, the section of the spiral groove 103 is approximately semicircular, and a temporary plugging ball is stored in a cavity formed by each turn of the spiral groove 103 and the ball passing channel 101; the cavity formed by the spiral groove 103 and the ball passing channel 101 is located right above the delivery channel in the delivery device body 4 and is communicated with each other.
The ball passing channel 101 on the thin neck part 12 and the spiral groove 103 on the counter 3 are combined together to form a complete ball feeding channel.
One end of the manipulator 6 is connected with the screw rod 5, and the screw rod 5 is driven to rotate by the motor, so that the manipulator 6 is driven to reciprocate along a delivery channel in the delivery device body 4. The manipulator 6 and the main channel 102 are in the same plane, the axial direction of the manipulator 6 is perpendicular to the axial direction of the main channel 102, and the manipulator 6 is connected to the delivery device body 4 through a flange and driven by a servo motor. The robot 6 may take the form of a screw.
A delivery channel in the delivery device body 4 is provided with a check valve 11, a sealing ring 8 and a valve plate 9 are arranged in the check valve 11, a valve body 10 of the check valve 11 is of a T-shaped three-way structure, one end of the check valve 11 is connected with a main channel 102, and two ends of the main channel 102 are union threads and are connected with a fracturing pipeline of a pump truck.
The upper part of the storage bin 1 is a cylindrical barrel, and the lower part of the storage bin is funnel-shaped; the top of the storage bin 1 is provided with a charging hole 2. The storage bin 1 is vertically arranged and is fixedly connected with the delivery device body 4 through a flange; the upper end of the counter 3 is fixedly connected with a cover plate at the top of the storage bin 1 through a bearing box, and the counter 3 is driven by a stepping motor.
The motor control system further comprises a controller, and the controller is connected with all the motors through cables and controls the motors to operate.
The fracturing temporary plugging agent delivery device is provided with a ball passing channel 101 on a thin neck part 12 at the lower end of a storage bin along the axial direction, and the temporary plugging ball can automatically slide down along a funnel-shaped inclined plane at the lower part of the storage bin 1 to enter the top of the ball passing channel 101 of the thin neck part 12 under the action of gravity of a ball substance. The counter 3 is rotated to roll the temporary blocking ball falling into the top of the ball passing channel 101 into the spiral groove 103, then the temporary blocking ball can be vertically arranged in the ball passing channel 101, each circle of spiral groove 103 on the counter 3 separates the vertically arranged temporary blocking ball, the counter 3 rotates for a circle, one temporary blocking ball falls from the tail end of the spiral groove, enters a delivery channel in the delivery device body 4, and simultaneously enters one temporary blocking ball from the top of the ball passing channel 101. The action is circulated, so that the automatic counting is realized, and the purpose of delivering the temporary blocking balls at intervals is also realized.
In the process, because half of each temporary plugging ball is in the ball passing channel and cannot rotate along with the counter, and the other half of each temporary plugging ball is in the spiral groove of the counter, when the counter rotates, the spiral groove rotates to drive the temporary plugging balls to move downwards along the ball passing channel. Because each circle of spiral grooves distributed on the outer wall of the counter has a coincidence point with the ball passing channel, a complete cavity is formed at the coincidence point to accommodate the temporary plugging ball, and thus the temporary plugging ball is separated by the spiral grooves on the counter in the ball passing channel.
The fracturing temporary plugging agent delivery device is also provided with a safe and reliable compensation type sealing device. The temporary plugging ball entering the delivery channel by the mechanical handle is pushed forward and firstly enters the sealing ring, so that the delivery channel moves forward to the front end of the sealing ring and is isolated from the storage bin, liquid is prevented from overflowing to the rear end of the sealing ring, and the safety of a low-pressure end is ensured. Then, the manipulator continues to move forward to push open a valve plate of the check valve, the valve plate is communicated with the high-pressure channel, and the temporary blocking ball enters the high-pressure channel. And after the top is reached, the manipulator retracts and retracts, the valve plate of the check valve is closed by the spring force, the valve plate is pre-tightened and sealed by the thrust of high-pressure liquid, the delivery channel is disconnected from the high-pressure channel, the low pressure is recovered, and the manipulator continues to retract and is separated from the sealing ring to return to the original position. In the delivery process, the temporary plugging balls are delivered into the high-pressure channel from the low-pressure channel, and in the whole process, the two sealing mechanisms are switched according to the sequence of replacement, so that the high-pressure liquid is prevented from overflowing and leaking, and the safety of equipment and operation is ensured.
The working method of the fracturing temporary plugging agent delivery device comprises the following steps:
(1) the screw rod is driven by the motor to drive the mechanical arm to do linear reciprocating motion, the temporary plugging ball fed into the delivery channel is pushed forward, and the mechanical arm is firstly contacted with the sealing ring to form the isolation of the delivery channel and the storage bin;
(2) the manipulator continues to move forward, the valve plate of the check valve is jacked open, and the temporary plugging ball is sent into the main channel;
(3) the mechanical arm starts to retract after reaching the top point, the valve plate rebounds and closes first to ensure that the delivery channel is isolated from the high-pressure liquid of the main channel, and then the mechanical arm continues to retract to release the sealing ring and retract to the original position;
(4) and (4) controlling the counter by a stepping motor, repeating the steps (1) to (3) according to the time period required by construction, and carrying out ball sending action.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a fracturing temporary plugging agent delivery device which characterized in that: including delivering device body (4), the top of delivering device body (4) is equipped with storage storehouse (1), the bottom in storage storehouse (1) forms thin neck (12), be equipped with in thin neck (12) and be located inside counter (3) in storage storehouse (1), be equipped with manipulator (6) in delivering device body (4), manipulator (6) are located the below of thin neck (12), and the one end of manipulator (6) is equipped with check valve (11).
2. The fracture diverting device according to claim 1, wherein: the inner wall surface of the thin neck part (12) is provided with a ball passing channel (101) parallel to the axial direction of the thin neck part (12), and the cross section of the ball passing channel (101) is approximately semicircular.
3. The fracturing temporary plugging agent delivery device of claim 2, wherein: the counter (3) is cylindrical, a spiral groove (103) which spirally extends from top to bottom around the wall surface is arranged on the outer wall surface of the counter (3) matched with the thin neck part (12), the number of turns of the spiral groove (103) around the wall surface is at least 1 turn, the section of the spiral groove (103) is approximately semicircular, and a temporary plugging ball is accumulated in a cavity formed by each turn of the spiral groove (103) and the ball passing channel (101); a cavity formed by the spiral groove (103) and the ball passing channel (101) at the lowest part is communicated with a delivery channel in the delivery device body (4).
4. The fracturing diverting device according to claim 3, wherein: one end of the manipulator (6) is connected with the screw (5), and the screw (5) is driven to rotate by the motor, so that the manipulator (6) is driven to reciprocate.
5. The fracture diverting device according to claim 4, wherein: a sealing ring (8) and a valve plate (9) are arranged in the check valve (11), a valve body (10) of the check valve (11) is of a T-shaped three-way structure, one end of the check valve (11) is connected with a main channel (102), and two ends of the main channel (102) are union threads and are connected with a fracturing pipeline of a pump truck.
6. The fracturing diverting device according to claim 5, wherein: the upper part of the storage bin (1) is a cylindrical barrel, and the lower part of the storage bin is funnel-shaped; the top of the storage bin (1) is provided with a charging hole (2).
7. The fracture diverting device according to claim 6, wherein: the manipulator (6) and the main channel (102) are located in the same plane, the axial direction of the manipulator (6) is perpendicular to the axial direction of the main channel (102), and the manipulator (6) is connected to the delivery device body (4) through a flange and driven by a servo motor.
8. The fracturing diverting device according to claim 7, wherein: the storage bin (1) is vertically arranged and is fixedly connected to the delivery device body (4) through a flange; the upper end of the counter (3) is fixedly connected with a cover plate at the top of the storage bin (1) through a bearing box, and the counter (3) is driven by a stepping motor.
9. The fracture diverting device according to claim 8, wherein: the motor control system further comprises a controller, and the controller is connected with all the motors through cables and controls the motors to operate.
10. The method of operating a fracture diverting device according to any of claims 1-9, comprising the steps of:
(1) the screw rod is driven by the motor to drive the mechanical arm to do linear reciprocating motion, the temporary plugging ball fed into the delivery channel is pushed forward, and the mechanical arm is firstly contacted with the sealing ring to form the isolation of the delivery channel and the storage bin;
(2) the manipulator continues to move forward, the valve plate of the check valve is jacked open, and the temporary plugging ball is sent into the main channel;
(3) the mechanical arm starts to retract after reaching the top point, the valve plate rebounds and closes first to ensure that the delivery channel is isolated from the high-pressure liquid of the main channel, and then the mechanical arm continues to retract to release the sealing ring and retract to the original position;
(4) and (4) controlling the counter by a stepping motor, repeating the steps (1) to (3) according to the time period required by construction, and carrying out ball sending action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210280445.4A CN114482919A (en) | 2022-03-21 | 2022-03-21 | Fracturing temporary plugging agent delivery device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210280445.4A CN114482919A (en) | 2022-03-21 | 2022-03-21 | Fracturing temporary plugging agent delivery device and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114482919A true CN114482919A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210280445.4A Pending CN114482919A (en) | 2022-03-21 | 2022-03-21 | Fracturing temporary plugging agent delivery device and working method thereof |
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| CN (1) | CN114482919A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095988A (en) * | 1989-11-15 | 1992-03-17 | Bode Robert E | Plug injection method and apparatus |
| US20120211219A1 (en) * | 2011-02-22 | 2012-08-23 | Stinger Wellhead Protection, Inc. | Horizontal frac ball injector |
| CN210289736U (en) * | 2019-06-21 | 2020-04-10 | 王建宁 | Acidizing fracturing device is used in oil field |
| CN212508244U (en) * | 2020-06-28 | 2021-02-09 | 西安博宏石油科技有限公司 | Acidizing fracturing device is used in oil field |
| CN112878976A (en) * | 2021-03-02 | 2021-06-01 | 四川申和新材料科技有限公司 | Remote control temporary plugging material injection system and application method |
| CN113294136A (en) * | 2021-07-08 | 2021-08-24 | 上海清河机械有限公司 | Ball injector for oil field fracturing |
| CN214273599U (en) * | 2020-12-30 | 2021-09-24 | 古莱特科技股份有限公司 | Device is thrown with granule temporary plugging agent pot-type to fracturing |
-
2022
- 2022-03-21 CN CN202210280445.4A patent/CN114482919A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5095988A (en) * | 1989-11-15 | 1992-03-17 | Bode Robert E | Plug injection method and apparatus |
| US20120211219A1 (en) * | 2011-02-22 | 2012-08-23 | Stinger Wellhead Protection, Inc. | Horizontal frac ball injector |
| CN210289736U (en) * | 2019-06-21 | 2020-04-10 | 王建宁 | Acidizing fracturing device is used in oil field |
| CN212508244U (en) * | 2020-06-28 | 2021-02-09 | 西安博宏石油科技有限公司 | Acidizing fracturing device is used in oil field |
| CN214273599U (en) * | 2020-12-30 | 2021-09-24 | 古莱特科技股份有限公司 | Device is thrown with granule temporary plugging agent pot-type to fracturing |
| CN112878976A (en) * | 2021-03-02 | 2021-06-01 | 四川申和新材料科技有限公司 | Remote control temporary plugging material injection system and application method |
| CN113294136A (en) * | 2021-07-08 | 2021-08-24 | 上海清河机械有限公司 | Ball injector for oil field fracturing |
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