CN113074922A - Temporary plugging agent performance evaluation test device for plugging perforation cluster - Google Patents
Temporary plugging agent performance evaluation test device for plugging perforation cluster Download PDFInfo
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- CN113074922A CN113074922A CN202010003591.3A CN202010003591A CN113074922A CN 113074922 A CN113074922 A CN 113074922A CN 202010003591 A CN202010003591 A CN 202010003591A CN 113074922 A CN113074922 A CN 113074922A
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- plugging
- performance evaluation
- test device
- evaluation test
- ball
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention provides a performance evaluation test device of a temporary plugging agent for plugging a perforation cluster, which comprises the following components: the sleeve and the ball-throwing component are connected through a pipeline; wherein: the sleeve is provided with at least one perforation hole; the ball throwing assembly comprises a ball throwing device, a ball throwing inlet pipeline, a first electric control ball valve, a ball valve connecting pipeline and a second electric control ball valve which are coaxially arranged from top to bottom in sequence. The invention provides a performance evaluation test device of a temporary plugging agent for plugging a perforation cluster, which is a ground test device applied to a temporary plugging ball for steering fracturing operation and can be used for researching the plugging performance of the temporary plugging ball on perforation holes with different sizes and shapes.
Description
Technical Field
The invention belongs to the technical field of steering fracturing in oil field development, and particularly relates to a performance evaluation test device for a temporary plugging agent for plugging a perforation cluster.
Background
For oil fields with medium and high water contents and development stages, the repeated fracturing technology is applied in the processes of comprehensive treatment, water control and oil stabilization. In the process of modifying a reservoir of a heterogeneous reservoir and a long horizontal well section, if a general fracturing mode is adopted, modified liquid can preferentially enter a high permeable layer or a crack with the minimum resistance, a medium-low permeable layer with large resistance is difficult to enter, and the modification degree of the medium-low permeable layer is poor. Fracturing in layers with drillable bridge plugs or selective fracturing tools can increase operating costs. By utilizing the steering fracturing technology, the temporary plugging ball is directly thrown in through a wellhead, so that the high-permeability perforation blastholes communicated with each other can be plugged, subsequent fracturing fluid is forced to enter high-stress areas and new fracture layers of other blastholes, the reconstruction volume of the oil-gas reservoir is effectively increased, the recovery ratio is improved, the operation cost can be effectively reduced, and any damage to the stratum can not be caused after the temporary plugging ball is degraded.
The performance evaluation device for the existing performance evaluation devices aims at the temporary plugging agent for plugging in the formation crack seams, and the performance evaluation device for the temporary plugging agent for plugging perforation clusters is used for testing the performance of the temporary plugging ball for plugging perforation holes in a casing.
Disclosure of Invention
Features and advantages of the invention will be set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the invention.
In order to overcome the problems in the prior art, the invention provides a performance evaluation test device of a temporary plugging agent for plugging a perforation cluster, which comprises a casing and a ball-throwing assembly, wherein the casing and the ball-throwing assembly are connected through a pipeline; wherein:
the sleeve is provided with at least one perforation hole;
the ball throwing assembly comprises a ball throwing device, a ball throwing inlet pipeline, a first electric control ball valve, a ball valve connecting pipeline and a second electric control ball valve which are coaxially arranged from top to bottom in sequence.
Optionally, a threaded hole is formed in the casing, and the device further comprises a threaded joint matched with the threaded hole, wherein the threaded joint is provided with a perforation hole.
Optionally, the device further comprises a cannula holder for holding the cannula.
Optionally, a hydraulic cylinder is installed below the casing support, and a rotary hinge is installed at one end of the casing support.
Optionally, the top of the sleeve support is an inverted U-shaped cover plate.
Optionally, the device further comprises a water tank, the cannula holder being fixed above the water tank.
Optionally, the device further comprises a water pump, one end of the water pump is connected with the water tank, and the other end of the water pump is connected with the pitching assembly through a main pipeline.
Optionally, the conduit is a pressure hose.
Optionally, the casing, the ball inlet pipe and/or the ball valve connecting pipe may be made of transparent materials according to test requirements.
Optionally, the liquid inlet end of the sleeve is provided with a flowmeter and a pressure gauge.
The invention provides a performance evaluation test device of a temporary plugging agent for plugging a perforation cluster, which is a ground test device applied to a temporary plugging ball for steering fracturing operation and can be used for researching the plugging performance of the temporary plugging ball on perforation holes with different sizes and shapes.
Drawings
Fig. 1 is a schematic structural diagram of a temporary plugging agent performance evaluation test device for plugging a perforation cluster, provided by an embodiment of the invention.
FIG. 2 is a schematic structural diagram of a casing in the performance evaluation test device for the temporary plugging agent for plugging the perforation clusters shown in FIG. 1.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
example 1:
as shown in fig. 1 and 2, a performance evaluation test device for a temporary plugging agent for plugging a perforation cluster provided in embodiment 1 of the present invention includes: the device comprises a sleeve 1, a ball injection assembly 6 and a water pump 8. Wherein:
the casing 1 is provided with at least one perforation hole, when a plurality of holes are arranged on the casing, the size and the shape of the holes can be different, and the casing can also be used for plugging the holes which are not needed in the current experiment by plugs matched with the holes. The perforation holes simulate the perforation cluster structure well. The sleeve 1 can also be made of organic glass materials, so that the migration process of the temporary plugging ball in the sleeve can be observed conveniently.
The first end 101 of the casing 1 is closed with a sealing threaded button and the ball injection assembly 6 is connected to the second end 105 of the casing 1 via the pipe 3. Preferably, the pipeline 3 is a pressure-resistant rubber pipe, and the pressure-resistant rubber pipe can prevent the sleeve from influencing the ball throwing assembly and the liquid inlet pipeline in the jacking movement process of the hydraulic cylinder. The sleeve is positioned on the main pipeline line of the liquid inlet pipeline.
The pitching assembly 6 is positioned on a branch pipeline of the liquid inlet pipeline and is coaxially provided with the following components from top to bottom in sequence: a ball injector 601, a ball injection inlet pipeline 602, a first electric control ball valve 603, a ball valve connecting pipeline 605 and a second electric control ball valve 604. The ball injector 601 is fixed above the ball injection inlet pipeline 602, and the second electric control ball valve 604 of the ball injection assembly 6 is connected with the main pipeline 9 of the sleeve 1 and the liquid inlet pipeline through a horizontal pipeline. More specifically, one end of the horizontal pipe is connected to the main pipe 9 of the liquid inlet line, and the other end is connected to the hose 3.
Before the experiment, two ball valves are all closed, and water pump 8 sends liquid and flows through trunk line 9, can set up numerical control electrohydraulic valve 7 on trunk line 9 and be used for controlling liquid flow. During the bowling, will temporarily block the ball 4 and throw into the funnel that links to each other with bowling inlet pipe one by one in proper order through ball injector 601 as required, later, at first open first automatically controlled ball valve 603, let temporarily block the ball 4 and fall into the ball valve connecting tube 605 between two automatically controlled sliding sleeves in self gravity, at this moment close first automatically controlled ball valve 603, open second automatically controlled ball valve 604, temporarily block the ball and continue to fall, until falling into in trunk line 9 and being taken into the sleeve pipe 1 by liquid, the bowling finishes, close second automatically controlled ball valve 604 at last, this device can be as required in the in-process of not stopping the pump bowling many times. Preferably, the liquid inlet end of the casing is also provided with a flow meter (not shown) and a pressure gauge 5 for measuring the flow rate and pressure of the liquid in the casing in real time. The sleeve can adopt organic glass material for observe the migration shutoff process of stifled ball temporarily in the sleeve.
Example 2:
on the basis of the embodiment 1, the embodiment 2 of the invention provides a performance evaluation test device for a temporary plugging agent for plugging a perforation cluster, which is different from the embodiment 1 in that a threaded hole is formed in a casing 1 and is used for assembling threaded joints with perforation holes of different structures. It will be seen that in this embodiment the perforations are not provided directly on the casing but are instead mounted on the casing by means of a threaded joint. Therefore, the hole plugging device can be replaced as required, can be used for plugging and testing holes with different shapes and sizes, and can also realize the purpose of controlling the flow of each hole through the hole-changing connector.
The testing device can be used for researching the plugging characteristics of the temporary plugging ball to the holes with different sizes and shapes under different flow rates and pressures, and the size of the temporary plugging ball required to be equipped for the holes with different structures is obtained.
Example 3:
on the basis of the embodiment 1 or 2, the embodiment 3 of the invention provides a performance evaluation test device for a temporary plugging agent for plugging a perforation cluster, which is different from the embodiment, in the embodiment, a casing 1 is fixed on a casing support 2 through a pipe clamp 202, and casings with different diameters can be conveniently replaced. The bottom of the sleeve support 2 is provided with a hydraulic oil cylinder, and one end of the hydraulic oil cylinder is provided with a rotating hinge for jacking the sleeve to different inclination angles. More specifically, the piston rod of the hydraulic cylinder is rotatably mounted on the bottom middle section area of the casing support 2, the cylinder body thereof is rotatably mounted on the base plate or the pedestal, one end of the rotating hinge is rotatably mounted on the base plate or the pedestal, and the other end is connected with the end of the casing support 2.
In specific implementation, the casing support 2 clamps the casing 1 through three pipe clamps 202, and the casing 1 can be converted from a horizontal placement state to a vertical state through the hydraulic cylinder 201. At least one boss 104 is provided on the outer wall of the casing 1 for catching the casing 1 on the tube clamp 202 of the casing holder 2 to prevent slipping when the position of the casing 1 is changed. Preferably, the bosses 104 are provided at one end of the sleeve 1 connected to the hose 3, and in this embodiment, only one boss is provided.
The testing device can simulate the plugging effect of the temporary plugging ball in horizontal wells, vertical wells and wells with various inclinations.
Example 4:
on the basis of embodiment 3, embodiment 4 of the present invention provides a performance evaluation test device for a temporary plugging agent for plugging a perforation cluster, which is different from the above embodiments, in this embodiment, the top of the casing support 2 is an inverted U-shaped cover plate, so as to further ensure the stability of supporting the casing 1, and the other function is to block the liquid ejected from the perforations of the casing 1, thereby effectively preventing personnel injury and environmental problems.
Example 5:
on the basis of embodiment 4, embodiment 5 of the present invention provides a performance evaluation test device for a temporary plugging agent for plugging a perforation cluster, which is different from embodiment 4, in this embodiment, the device further includes a water tank 11, a hollow light steel frame 111 is arranged at the top of the water tank, and the casing support 2 is fixed on the light steel frame 111 at the top of the water tank 11 through a bolt group on the bottom plate 203. Therefore, liquid ejected from the holes can be prevented from flowing into the water tank through the inverted U-shaped baffle plate and then falling into the water tank through the light steel frame 111 to be collected, and the water tank 11 is connected with the water pump 8, so that water in the water tank 11 can enter the liquid supply pipeline through the water pump again.
In this embodiment, liquid can be recycled, a certain amount of liquid is filled in the water tank 11 in advance, the water pump 8 conveys the liquid along the pipeline 9, the numerical control electro-hydraulic valve 7 realizes the control of the flow, then the liquid pressure in the pipeline is recorded by the ball throwing system 6 and the pressure gauge 5, the hose 3 reaches the sleeve 1, the liquid is jetted from the hole 102 in the sleeve 1, and the liquid is blocked by the inverted U-shaped baffle at the top of the sleeve support 2 and falls back into the water tank 11 below the sleeve support 2, so that the circulation is realized.
In the test process, the opening and closing of the hydraulic cylinder 201 and the valves 603, 604 and 7 are controlled by a computer, and the flow data of the pressure gauge 5 and the numerical control electro-hydraulic valve 7 are monitored in real time.
The invention provides a performance evaluation test device of a temporary plugging agent for plugging a perforation cluster, which comprises a casing pipe with a simulated perforation cluster structure, wherein the casing pipe is fixed on a casing pipe support with a hydraulic jacking mechanism, the casing pipe is connected with a ball throwing assembly through a hose, and the ball throwing assembly finishes ball throwing by controlling the action between a ball throwing device and an electric control ball valve. The device can be used for throwing balls as required, monitoring the flow and pressure in a pipeline in real time, replacing different perforation cluster structures on the same casing pipe, researching the migration and plugging processes of the temporary plugging ball in the casing pipes in different placing states, adjusting the liquid flow rate and the placing angle of the casing pipe and researching the migration and plugging efficiency of the temporary plugging ball.
The above-described embodiment is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application and principle of the present invention disclosed in the present application, and the present invention is not limited to the method described in the above-described embodiment of the present invention, so that the above-described embodiment is only preferred, and not restrictive.
Claims (10)
1. A performance evaluation test device of a temporary plugging agent for plugging a perforation cluster is characterized by comprising a sleeve and a ball throwing assembly which are connected through a pipeline; wherein:
the sleeve is provided with at least one perforation hole;
the ball throwing assembly comprises a ball throwing device, a ball throwing inlet pipeline, a first electric control ball valve, a ball valve connecting pipeline and a second electric control ball valve which are coaxially arranged from top to bottom in sequence.
2. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 1, wherein a threaded hole is formed in the casing, the device further comprises a threaded joint matched with the threaded hole, and the threaded joint is provided with perforation holes.
3. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 1, wherein the device further comprises a casing support for fixing the casing.
4. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 3, wherein a hydraulic oil cylinder is arranged below the casing support, and a rotating hinge is arranged at one end of the casing support.
5. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 3, wherein the top of the casing support is an inverted U-shaped cover plate.
6. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 3, wherein the device further comprises a water tank, and the casing support is fixed above the water tank.
7. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 6, wherein the device further comprises a water pump, one end of the water pump is connected with the water tank, and the other end of the water pump is connected with the pitching assembly through a main pipeline.
8. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 1, wherein the pipeline is a pressure-resistant hose.
9. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 1, wherein the sleeve, the ball throwing inlet pipeline and/or the ball valve connecting pipeline are made of transparent materials.
10. The temporary plugging agent performance evaluation test device for plugging perforation clusters according to claim 1, wherein a flow meter and a pressure gauge are arranged at the liquid inlet end of the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003591.3A CN113074922A (en) | 2020-01-03 | 2020-01-03 | Temporary plugging agent performance evaluation test device for plugging perforation cluster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003591.3A CN113074922A (en) | 2020-01-03 | 2020-01-03 | Temporary plugging agent performance evaluation test device for plugging perforation cluster |
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| CN113074922A true CN113074922A (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010003591.3A Pending CN113074922A (en) | 2020-01-03 | 2020-01-03 | Temporary plugging agent performance evaluation test device for plugging perforation cluster |
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| CN205990899U (en) * | 2016-08-31 | 2017-03-01 | 中国石油集团川庆钻探工程有限公司 | Diverting agent turns to and proppant sedimentation simulation visual experimental apparatus |
| CN108222884A (en) * | 2016-12-15 | 2018-06-29 | 中国石油天然气股份有限公司 | Pitching simulator and method |
| CN108775237A (en) * | 2018-05-28 | 2018-11-09 | 中石化石油工程技术服务有限公司 | The continuous ball-throwing apparatus of separate stratum fracfturing |
| CN110331970A (en) * | 2019-07-02 | 2019-10-15 | 中国石油天然气股份有限公司 | A kind of multistage fracture simulation experimental provision |
| US20190360971A1 (en) * | 2018-05-22 | 2019-11-28 | China University Of Petroleum - Beijing | Apparatus and method for evaluating properties of temporary plugging agent based on acoustic emission |
| CN110608019A (en) * | 2019-10-21 | 2019-12-24 | 中国石油化工股份有限公司 | Steering separate-layer fracturing experiment simulation device and using method thereof |
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2020
- 2020-01-03 CN CN202010003591.3A patent/CN113074922A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205990899U (en) * | 2016-08-31 | 2017-03-01 | 中国石油集团川庆钻探工程有限公司 | Diverting agent turns to and proppant sedimentation simulation visual experimental apparatus |
| CN108222884A (en) * | 2016-12-15 | 2018-06-29 | 中国石油天然气股份有限公司 | Pitching simulator and method |
| US20190360971A1 (en) * | 2018-05-22 | 2019-11-28 | China University Of Petroleum - Beijing | Apparatus and method for evaluating properties of temporary plugging agent based on acoustic emission |
| CN108775237A (en) * | 2018-05-28 | 2018-11-09 | 中石化石油工程技术服务有限公司 | The continuous ball-throwing apparatus of separate stratum fracfturing |
| CN110331970A (en) * | 2019-07-02 | 2019-10-15 | 中国石油天然气股份有限公司 | A kind of multistage fracture simulation experimental provision |
| CN110608019A (en) * | 2019-10-21 | 2019-12-24 | 中国石油化工股份有限公司 | Steering separate-layer fracturing experiment simulation device and using method thereof |
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Application publication date: 20210706 |
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