CN216841608U - Visual ball-throwing blockage-adjusting simulation device - Google Patents
Visual ball-throwing blockage-adjusting simulation device Download PDFInfo
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- CN216841608U CN216841608U CN202220078001.8U CN202220078001U CN216841608U CN 216841608 U CN216841608 U CN 216841608U CN 202220078001 U CN202220078001 U CN 202220078001U CN 216841608 U CN216841608 U CN 216841608U
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Abstract
The utility model provides a visual ball-throwing plugging-adjusting simulation device, which relates to the technical field of oil and gas field development and comprises a shaft test model, an injection system and a flow regulating system; the movement and adsorption states of the blocking ball near a shaft, a shaft bottom and a blast hole can be adjusted in a real reaction mode through the matching among the components, visual simulation experiments of migration, adsorption and desorption rules of the blocking ball adjusting shaft are completed, migration, adsorption and desorption phenomena of the blocking ball in the shaft are visually observed, the effect of temporarily blocking the blocking ball is judged through real-time monitoring of pressure and flow, the blocking construction operation of ball injection and adjustment is guided, and the success rate of the ball injection and profile control operation is improved.
Description
Technical Field
The utility model belongs to the technical field of oil gas field development, concretely relates to stifled analogue means is transferred to visual bowling.
Background
The ball throwing profile control technology is a low-cost technology developed aiming at uneven water absorption profile of a water injection well and higher cost of conventional separate injection and chemical profile control measures, and the technical principle is that a plug ball with the density equal to the density of injected water is put into the water injection well, the plug ball preferentially reaches the vicinity of a blast hole of a high water absorption layer under the action of dynamic water flow of the injected water, and the blast hole is plugged under the action of water injection pressure difference, so that the distribution of the injected water layer is changed, and the water absorption capacity of a main water absorption layer is reduced.
The actions of profile control ball settlement, radial translation and adsorption in a shaft and the like are a series of complex processes and are influenced by parameters such as shaft, plugging ball and fluid, and the current pitching profile control technology lacks corresponding deep research and supporting technology in the aspects of pitching selective plugging of a hypertonic layer, adsorption stability and the like, so that the pitching is not artificially supported by the theory of controlling and interfering pitching after entering the shaft, and the problems of low pitching construction success rate, short effective period and the like are caused. The visual observation of the phenomena of migration, adsorption and desorption of the plugging adjusting ball in the shaft is realized on the ground through the visual ball throwing and plugging adjusting simulation device. The migration, adsorption and desorption processes of the blocking ball under the conditions of different well conditions, different permeability reservoirs, different ball water density differences, high-medium low-permeability relative positions, different bell mouth positions and the like are simulated, the ball throwing blocking effect can be judged by ground observation and real-time pressure and flow monitoring, and necessary theoretical and experimental basis is provided for implementing the ball throwing profile control process.
The chinese utility model patent CN212621426U temporary blocking ball blocking shot hole simulator comprises high-pressure pump, pit shaft, shot hole and bowling ware, can evaluate the influence of different discharge capacities, the quantity of temporary blocking ball, the size of temporary blocking ball and the diameter of shot hole to setting efficiency, confirms main influence factor to can select suitable parameter in various factors when actual construction, reach and improve setting efficiency purpose. The device can not realize that the visual observation of ground transfers, adsorbs, the desorption phenomenon at the pit shaft of transfer stifled ball, can not simulate the influence of factors such as evaluation shot hole number, shot hole size, well deviation, injection water mineralization degree, oil pipe horn mouth and hypertonic relative position to transfer stifled ball, absorption and shutoff.
Chinese utility model patent CN205135585U is a layering water injection simulation experiment device, is equipped with the bowling pipeline and can realizes that bowling motion, shutoff state are visual, and water injection flow, section water absorption capacity developments are adjustable, the real-time measurable characteristics of experimental data. The device can only simulate strata with different water absorption amounts by adjusting the water yield through the loop valve, but the device can not simulate high, medium and low permeability reservoir layers, can not simulate the diameter and the number of blastholes, and can not selectively close holes corresponding to the high, medium and low permeability layer parts. Meanwhile, the angle of the model support of the device is not adjustable, and the blocking condition of the blocking ball under the conditions of different inclined shafts and the like cannot be simulated.
The utility model aims at adjusting the motion, the absorption and the desorption state of stifled ball near pit shaft, shaft bottom, big gun eye in order to can compare true reaction bowling profile control back, design downhole bowling and transfer stifled analogue means, accomplish and transfer stifled ball pit shaft migration, absorption, the visual simulation experiment of desorption law. The device can realize the visual observation of ground and judge the temporary stifled effect of bowling through pressure, flow real time monitoring, improves bowling profile control success rate, and the extension operation validity period is better instructs bowling profile control operation design construction.
SUMMERY OF THE UTILITY MODEL
For solving the problem that the visual simulation experiment of stifled ball pit shaft migration, absorption, desorption law under the condition such as different well conditions of the unable simulation of prior art, different permeability reservoir stratum, different ball water density difference, high-medium hypotonic relative position, the different positions of horn mouth, the utility model provides a following technical scheme:
a visual ball-throwing plugging-adjusting simulation device comprises a shaft test model and a water tank; the shaft test model is tubular, and a plurality of simulation blastholes are formed in the inner wall of the shaft test model; the water tank is connected with the pump and the shaft test model through a liquid inlet pipeline; the liquid inlet pipeline is also provided with a collector and a pressure sensor; the shaft test model is connected with the water tank through a liquid separation pipeline; the shaft test model is further provided with a support, and the support is provided with a steering wheel.
Preferably, the simulated blastholes are vertically divided into a plurality of groups, and the aperture of each group is different.
Preferably, the top of the shaft test model is provided with a four-way joint.
Preferably, the bottom of the shaft test model is provided with a drain valve.
Preferably, the liquid separating pipelines are provided with liquid separating gate valves and flow meters.
Preferably, the liquid inlet pipeline is provided with a branch which is connected with the water tank through a pressure relief pipeline.
Preferably, a safety valve is arranged on the pressure relief pipeline.
The utility model has the advantages that: the simulation device for adjusting the movement, adsorption and desorption states of the plugging ball near a shaft, a well bottom and a blast hole after real response ball throwing profile control is designed in a ratio of 1:1, and is mainly composed of a test model, an injection system, a flow adjusting system, a pressure induction system and the like, and can simulate the processes of adjusting the movement, adsorption and desorption of the plugging ball shaft under the conditions of different well conditions, different permeability reservoirs, different ball water density differences, high and low permeability relative positions, different bell mouth positions and the like, and simultaneously can realize the following functional simulation through a universal regulating valve: simulating the aperture of different perforation blastholes, the water absorption ratio among small layers and the well inclination position of 0-180 degrees; simulation of 0m3/d～55m3D water injection daily. The device can realize the visual observation of ground and judge the temporary stifled effect of bowling through pressure, flow real time monitoring, improves bowling profile control success rate, and the extension operation validity period is better instructs bowling profile control operation design construction.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a wellbore test model;
in the figure: 1-wellbore test model: 2-a water tank; 3-a liquid separation pipeline; 4-a separating gate valve; 5-a flow meter; 6-liquid inlet pipeline; 7-a liquid inlet valve; 8-a pump; 9-a pressure sensor; a 10-four-way junction; 11-drain valve; 12-a collector; 13-a pressure relief conduit; 14-a safety valve; 15-simulating a blast hole; 16-a scaffold; 17-steering wheel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example (b):
as shown in fig. 1, a visual ball-throwing plugging-adjusting simulation device comprises a shaft test model 1, an injection system and a flow adjusting system; the shaft test model 1 is tubular, and a plurality of simulation blastholes 15 are arranged on the inner wall of the shaft test model 1; three liquid separation pipelines 3 are arranged at the upper part, the middle part and the lower part of the shaft test model 1 and are connected with a water tank 2; the top of the shaft test model 1 is provided with a four-way valve 10 and a liquid inlet valve 7; a drain valve 11 is arranged at the bottom of the shaft test model 1; the water tank 2 is connected with a pump 8 and a liquid inlet valve 7 through a liquid inlet pipeline 6; the liquid inlet pipeline 6 is also provided with a collector 12 and a pressure sensor 9.
Specifically, each liquid separation pipeline 3 is independently provided with a liquid separation valve gate 4 and a flowmeter 5, and the conditions of each liquid separation pipeline 3 can be independently controlled, monitored and simulated to simulate the permeability and water absorption of different layers; the flow regulating system consisting of the liquid separating pipeline 3, the liquid separating gate valve 4 and the flow meter 5 can simulate three reservoirs with different permeabilities, namely high, medium and low, and the water absorption ratio among different layers in a target well by regulating different liquid separating gate valves 4 and flow meters 5.
In this embodiment, a branch path is arranged on the liquid inlet pipeline 6 and connected with the water tank 2 through a pressure relief pipeline 13, and a safety valve 14 is arranged on the pressure relief pipeline 13; the water tank 2, the liquid inlet pipeline 6, the pump 8, the pressure sensor 9, the collector 11, the pressure relief pipeline 13 and the safety valve 14 form an injection system; the injection system in the embodiment can resist 2.5MPa, and the safety valve 14 is opened when the pressure reaches 2MPa, so that the device is prevented from being damaged due to overhigh pressure.
As shown in fig. 2, a support 16 is further arranged on the shaft test model 1, a steering wheel 17 is mounted on the support 16, and the angle of the steering wheel 17 can be adjusted within an interval of 0-180 degrees, so that wells with different well inclinations can be simulated conveniently.
When the utility model is used for the plugging adjustment simulation test, the device is firstly put down to the lower parts of all water absorption layers, the inclination angle of the shaft test model is adjusted through the steering wheel 17, and the condition of a target well is fully simulated; then, three reservoirs with different permeabilities, namely high, medium and low reservoirs and different reservoir water absorption ratios in the target well are simulated by adjusting the liquid separating valve gates 4 and the flow meters 5 on the liquid separating pipelines; preparing water with corresponding mineralization degree into a water tank 2 according to the actual density of injected water, injecting water with equal density into a plugging ball through a collector 12 to ensure that the plugging ball can be suspended in the injected water, closing gate valves on the left side and the right side of a cross joint at the moment, stopping water injection, adding a certain amount of plugging balls into a shaft test model 1 through a ball injector, starting water injection, and observing migration and adsorption of the plugging balls in the experimental process; during the back injection, the ball is collected by the collector 12.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (7)
1. The utility model provides a stifled analogue means is transferred to visual bowling which characterized in that: the device comprises a shaft test model and a water tank; the shaft test model is tubular, and a plurality of simulation blastholes are formed in the inner wall of the shaft test model; the water tank is connected with the pump and the shaft test model through a liquid inlet pipeline; the liquid inlet pipeline is also provided with a collector and a pressure sensor; the shaft test model is connected with the water tank through a liquid separation pipeline; the shaft test model is also provided with a support, and the support is provided with a steering wheel.
2. The visual ball-throwing blockage-adjusting simulation device according to claim 1, wherein: the simulated blastholes are vertically divided into a plurality of groups, and the aperture of each group is different.
3. The visual ball-throwing blockage-adjusting simulation device according to claim 1, wherein: and a cross joint is arranged at the top of the shaft test model.
4. A visual pitching blockage-adjusting simulation device according to claim 3, wherein: and a liquid discharge valve is arranged at the bottom of the shaft test model.
5. The visual ball-throwing blockage-adjusting simulation device according to claim 1, wherein: and liquid separating gate valves and flow meters are arranged on the liquid separating pipelines.
6. The visual ball-throwing blockage-adjusting simulation device according to claim 1, wherein: and a branch is arranged on the liquid inlet pipeline and is connected with the water tank through a pressure relief pipeline.
7. The visual ball-throwing blockage-adjusting simulation device according to claim 6, wherein: and a safety valve is arranged on the pressure relief pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220078001.8U CN216841608U (en) | 2022-01-12 | 2022-01-12 | Visual ball-throwing blockage-adjusting simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220078001.8U CN216841608U (en) | 2022-01-12 | 2022-01-12 | Visual ball-throwing blockage-adjusting simulation device |
Publications (1)
| Publication Number | Publication Date |
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| CN216841608U true CN216841608U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220078001.8U Active CN216841608U (en) | 2022-01-12 | 2022-01-12 | Visual ball-throwing blockage-adjusting simulation device |
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| CN (1) | CN216841608U (en) |
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- 2022-01-12 CN CN202220078001.8U patent/CN216841608U/en active Active
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