CN110725676B - Support solid phase and support seam width testing device - Google Patents
Support solid phase and support seam width testing device Download PDFInfo
- Publication number
- CN110725676B CN110725676B CN201810777107.5A CN201810777107A CN110725676B CN 110725676 B CN110725676 B CN 110725676B CN 201810777107 A CN201810777107 A CN 201810777107A CN 110725676 B CN110725676 B CN 110725676B
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- guide rod
- bearing table
- hydraulic
- piston
- pressure bearing
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- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention discloses a supporting solid-phase support seam width testing device, and belongs to the field of oil exploitation. The device comprises a first guide rod 31 and a second guide rod 32 which penetrate through two ends of a pressure bearing table 4 and are respectively connected with a top cover 1 and a bottom plate 6, a hydraulic device 7 arranged on the bottom plate 6, a pressure gauge 5 arranged on the hydraulic device 7, the pressure bearing table 4 abutted against the hydraulic device 7, a propping agent container 9 arranged on the pressure bearing table 4, a heating plate 8 positioned outside the propping agent container 9, a temperature sensor 10 arranged on the propping agent container 9, a piston 11 abutted against the propping agent container 9 and the top cover 1, and a dial indicator 2 arranged on the piston 11. The high temperature environment of the formation is provided by the heating plate. The experimental temperature is made to be consistent with the formation temperature as much as possible by the temperature sensor. The dial indicator enables the supporting solid-phase supporting seam width measured by the device to be more reliable.
Description
Technical Field
The invention relates to the field of oil exploitation, in particular to a supporting solid-phase supporting seam width testing device.
Background
With the continuous exploitation of petroleum, increasing the production of oil wells is increasingly being valued. Hydraulic fracturing is widely used in the development of oil and gas fields as a primary technical measure for oil well stimulation. For example, some hydraulic fracturing technologies, liquid-supported fracturing technologies, utilize two (or more) fluids that are immiscible to fracture and form artificial fractures of a certain geometrical size, and chemically make one or two of the fluids in the fracture form a plurality of independent "supported solid-phase" supported fractures, thereby forming a supported fracture with high conductivity and increasing the single well yield. Therefore, how to design a supporting solid-phase supporting seam width testing device enables the liquid supporting fracturing technology to be put into use, and the device becomes a problem of great concern to people in the field of oil exploitation.
Disclosure of Invention
The embodiment of the invention provides a supporting solid-phase supporting gap width testing device, which is used for solving the problem that the supporting solid-phase supporting gap width value cannot be tested according to the formation temperature and the formation pressure in the related art. The technical scheme is as follows:
a supported solid phase support gap width testing device, comprising: the device comprises a top cover 1, a dial indicator 2, a first guide rod 31, a second guide rod 32, a pressure bearing table 4, a pressure gauge 5, a bottom plate 6, a hydraulic device 7, a heating plate 8, a proppant container 9, a temperature sensor 10 and a piston 11.
The first guide rod 31 and the second guide rod 32 penetrate through two ends of the pressure bearing table 4 and are respectively connected with the top cover 1 and the bottom plate 6. The hydraulic device 7 is arranged on the bottom plate 6, and the hydraulic device 7 is provided with a pressure gauge 5. The hydraulic device 7 is abutted against the pressure-bearing table 4. The proppant container 9 is arranged on the pressure bearing table 4, the heating plate 8 is positioned outside the proppant container 9, the temperature sensor 10 is arranged on the proppant container 9, one end of the piston 11 is positioned in the proppant container 9, and the other end of the piston is abutted against the top cover 1. The dial gauge 2 is provided on the piston 11.
Optionally, the number of the first guide rod 31 and the second guide rod 32 is at least two. The first guide rod 31 and the second guide rod 32 are stud guide rods, two ends of the top cover 1 and the bottom plate 6 are symmetrically provided with groove holes corresponding to the first guide rod 31 and the second guide rod 32, inner walls of the groove holes are provided with internal threads, and the first guide rod 31 and the second guide rod 32 are detachably connected with the top cover 1 and the bottom plate 6 through threads.
Optionally, through holes are symmetrically formed in two ends of the pressure bearing table 4, the first guide rod 31 and the second guide rod 32 penetrate through the pressure bearing table 4 through the corresponding through holes to limit the moving range of the pressure bearing table 4, and the pressure bearing table 4 can slide on the first guide rod 31 and the second guide rod 32.
Alternatively, the hydraulic device 7 is composed of a hydraulic cylinder 71, a hydraulic handle 72, and a hydraulic rod 73.
The hydraulic cylinder 71 is arranged at the center of the bottom plate 6, and the hydraulic cylinder 71 is provided with a pressure gauge 5, a hydraulic handle 72 and a hydraulic rod 73; the hydraulic rod 73 is abutted against the center position of the pressure-bearing table 4.
Optionally, the heating plate 8 is at least one.
Optionally, a blind hole is formed in the proppant container 9, and the size of the blind hole is larger than that of the piston 11.
Optionally, the proppant container 9 is disposed at the center of the pressure bearing table 4, and the piston 11 is aligned with the blind hole of the proppant container 9.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the device comprises a hydraulic device, a propping agent container, a piston, a pressure gauge, a heating plate, a temperature sensor, a pressure gauge, a heating plate and a pressure sensor, wherein the hydraulic device, the propping agent container and the piston are matched to provide a stratum high-pressure environment, the pressure gauge makes the experiment pressure consistent with the stratum pressure as much as possible, the heating plate provides a stratum high-temperature environment, the experiment temperature consistent with the stratum temperature as much as possible, and the supporting solid-phase supporting seam width measured by the device is more real and reliable through the dial indicator.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a supporting solid-phase supporting gap width testing device provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a pressure-bearing table provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a hydraulic apparatus provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a proppant container provided by an embodiment of the invention.
Wherein reference numerals in the drawings are explained as follows:
the device comprises a top cover 1, a dial indicator 2, a first guide rod 31, a second guide rod 32, a pressure bearing table 4, a pressure gauge 5, a bottom plate 6, a hydraulic device 7, a hydraulic cylinder 71, a hydraulic handle 72, a hydraulic rod 73, a heating plate 8, a proppant container 9, a temperature sensor 10 and a piston 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, the embodiment of the invention provides a supporting solid phase support gap width testing device, which comprises a top cover 1, a dial indicator 2, a first guide rod 31, a second guide rod 32, a pressure bearing table 4, a pressure gauge 5, a bottom plate 6, a hydraulic device 7, a heating plate 8, a proppant container 9, a temperature sensor 10 and a piston 11.
The first guide rod 31 and the second guide rod 32 penetrate through two ends of the pressure bearing table 4 and are respectively connected with the top cover 1 and the bottom plate 6. The hydraulic device 7 is arranged on the bottom plate 6, and the hydraulic device 7 is provided with a pressure gauge 5. The hydraulic device 7 is abutted against the pressure-bearing table 4. The proppant container 9 is arranged on the pressure bearing table 4, the heating plate 8 is positioned outside the proppant container 9, the temperature sensor 10 is arranged on the proppant container 9, one end of the piston 11 is positioned in the proppant container 9, and the other end of the piston is abutted against the top cover 1. The dial gauge 2 is provided on the piston 11.
Specifically, a first guide rod 31 and a second guide rod 32 symmetrically connect the top cover 1 and the bottom plate 6 together, and the pressure-bearing table 4 is connected with the guide rod 3 between the top cover 1 and the bottom plate 6; the hydraulic device 7 is arranged on the bottom plate 6, and the pressure gauge 5 is arranged on the hydraulic device 7; the hydraulic device 7 is abutted against the lower surface of the pressure-bearing table 4, and a proppant container 9 is arranged on the upper surface of the pressure-bearing table 4; a heating plate 8 is arranged on the outer wall of the proppant container 9, and a temperature sensor 8 is arranged on the upper end face of the proppant container 9; one end of a piston 11 is abutted against the top cover 1, the other end of the piston is abutted against the propping agent container 9, and the dial indicator 2 is arranged on the piston 11.
In the embodiment of the invention, the hydraulic device 7 pushes the propping agent container on the pressure bearing table 4 to be in close contact with the piston, and the reading of the dial indicator 2 is read; the heating plate 8 heats the support solid phase, and the heating is stopped when the temperature sensor 10 detects that the temperature reaches the experimental set temperature; after the support solid phase is placed, the hydraulic device 7 is operated, the pressure bearing table 4 is pushed to move upwards, certain pressure is formed between the proppant container 9 and the piston 11, the reading of the dial indicator 2 is read until the pressure displayed by the pressure gauge 5 reaches the pressure set in an experiment, and the difference between the two readings of the dial indicator 2 is the seam width.
The high pressure environment of the formation is provided by the cooperation of the hydraulic device and the proppant container and the piston. The experimental pressure is consistent with the formation pressure as much as possible through the pressure gauge. The high temperature environment of the formation is provided by the heating plate. The experimental temperature is made to be consistent with the formation temperature as much as possible by the temperature sensor. The support solid-phase support seam width measured by the device is more real and reliable through the dial indicator.
In an alternative embodiment, the first guide rod 31 and the second guide rod 32 are stud bolt guide rods, recessed holes corresponding to the first guide rod 31 and the second guide rod 32 are symmetrically formed at the positions where the two ends of the top cover 1 and the bottom plate 6 are connected with the first guide rod 31 and the second guide rod 32, respectively, inner threads are formed on the inner walls of the recessed holes, and the first guide rod 31 and the second guide rod 32 are detachably connected with the top cover 1 and the bottom plate 6 through threads, respectively.
In an alternative embodiment, as shown in fig. 2, two through holes are symmetrically arranged at two ends of the pressure-bearing platform 4. The first guide rod 31 and the second guide rod 32 penetrate through the bearing table 4 through the corresponding through holes to limit the moving range of the bearing table 4, and the bearing table 4 can slide on the first guide rod 31 and the second guide rod 32.
It should be noted that, the apparatus provided in the embodiment of the present invention may further include a greater number of guide rods besides the first guide rod 31 and the second guide rod 32, the number of guide rods is not limited in the embodiment of the present invention, and in order to enable the guide rods to pass through the pressure bearing table 4, the number of through holes on the pressure bearing table 4 is the same as the number of guide rods, and the through holes correspond to the number of guide rods one to one.
In an alternative embodiment, shown in fig. 3, the hydraulic device 7 comprises a hydraulic cylinder 71, a hydraulic handle 72, and a hydraulic rod 73.
The hydraulic cylinder 71 is arranged at the center of the bottom plate 6, and the hydraulic cylinder 71 is provided with a pressure gauge 5, a hydraulic handle 72 and a hydraulic rod 73; the hydraulic rod 73 is abutted against the center position of the pressure-bearing table 4.
In an alternative embodiment, the heating plate 8 is at least one piece. The heating plates 8 may be disposed on any surfaces of the periphery of the proppant container 9, and the number of the heating plates 8 may be multiple.
In an alternative embodiment, as shown in fig. 4, the proppant container 9 is provided with a blind hole, which is slightly larger than the piston 11.
In an alternative embodiment, the proppant container 9 is placed in the center of the pressure bearing table 4 and the piston 11 is aligned with the blind hole of the proppant container 9.
The working principle of the supporting solid-phase supporting gap width testing device provided by the embodiment of the invention is as follows:
the hydraulic device 7 consisting of the hydraulic cylinder 71, the hydraulic handle 72 and the hydraulic rod 73 is matched with the propping agent container 9 and the piston 11 to provide pressure for supporting a solid phase, the hydraulic handle 72 is operated to enable the hydraulic rod 73 to move upwards and push the pressure bearing table 4 to move upwards, and when the bottom of the piston 11 is in close contact with the propping agent container 9 and the top of the piston 11 is in close contact with the top cover 1, the reading of the dial indicator 2 is read; the heating plate 8 heats the support solid phase, and the temperature sensor 10 detects the temperature rise until the temperature reaches the temperature designed by the experiment; placing a support solid phase in the blind hole, operating the hydraulic handle 8 to enable the hydraulic rod 9 to move upwards and push the pressure bearing table 4 to move upwards, further enabling a certain pressure to be formed between the proppant container 9 and the piston 11, continuously operating the hydraulic handle 8 until the pressure displayed by the pressure gauge 5 reaches the pressure set by the experimental scheme, reading the reading of the dial indicator 2, wherein the difference of the two readings of the dial indicator 2 is the seam width; the stud bolts of the first guide rod 31 and the second guide rod 32 are respectively in threaded connection with the top cover 1 and the bottom plate 6; the first guide rod 31 and the second guide rod 32 penetrate through the pressure bearing table 4; the centers of the piston 11, proppant container 9, hydraulic rod 73, and hydraulic cylinder 71 are in the same line; a supporting solid phase is placed between the blind hole of the proppant container 9 and the piston 13.
In conclusion, the high-pressure environment of the stratum is provided through the cooperation of the hydraulic device consisting of the hydraulic cylinder, the hydraulic handle and the hydraulic rod, the proppant container and the piston. The experimental pressure is kept as consistent as possible with the formation pressure through the real-time monitoring of the pressure gauge. The high temperature environment of the formation is provided by the heating plate. The experimental temperature is kept consistent with the formation temperature as much as possible by monitoring in real time through a temperature sensor. The measured supporting solid-phase supporting seam width is more real and reliable through a dial indicator, and the operation is convenient; the device is convenient to disassemble through the stud bolts of the guide rods; the pressure bearing table can move up and down along the guide rod through the through hole on the pressure bearing table; the centers of the piston, the proppant container, the hydraulic rod and the hydraulic cylinder are positioned on the same straight line, so that the device is uniformly stressed and has a reasonable structure; the heating condition can be satisfied in many aspects by the change of the position and the number of the heating plates; through the blind hole of the proppant container, the piston can move normally and prevent the support from leaking out between the piston and the proppant container.
All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The self-supporting solid phase support gap width testing device is characterized by comprising: the device comprises a top cover (1), a dial indicator (2), a first guide rod (31), a second guide rod (32), a pressure bearing table (4), a pressure gauge (5), a bottom plate (6), a hydraulic device (7), a heating plate (8), a propping agent container (9), a temperature sensor (10) and a piston (11);
the first guide rod (31) and the second guide rod (32) penetrate through two ends of the pressure bearing table (4) and are respectively connected with the top cover (1) and the bottom plate (6); the hydraulic device (7) is arranged on the bottom plate (6), and the pressure gauge (5) is arranged on the hydraulic device (7); the hydraulic device (7) is abutted against the pressure bearing table (4);
the proppant container (9) is arranged on the pressure bearing table (4), the proppant container (9) is of a hollow cuboid structure with an upper end open and a lower end closed, an inner cavity of the proppant container (9) is a cuboid cavity, the heating plate (8) is positioned on the outer side of the proppant container (9), the temperature sensor (10) is arranged on the proppant container (9), one end of the piston (11) is positioned in the proppant container (9), and the other end of the piston (11) is abutted against the top cover (1); the dial indicator (2) is arranged on the piston (11), the dial indicator (2) is used for measuring the relative movement distance of the proppant container (9), a blind hole is formed in the proppant container (9), the size of the blind hole is larger than that of the piston (11), the proppant container (9) is arranged in the center of the pressure bearing table (4), and the piston (11) is aligned with the blind hole of the proppant container (9);
through holes are symmetrically formed in two ends of the pressure bearing table (4), the first guide rod (31) and the second guide rod (32) penetrate through the pressure bearing table (4) through the corresponding through holes to limit the moving range of the pressure bearing table (4), and the pressure bearing table (4) can slide on the first guide rod (31) and the second guide rod (32);
when the hydraulic device (7) pushes the pressure bearing table (4) to move upwards, so that the bottom of the piston (11) is in close contact with the proppant container (9) and the top of the piston (11) is in close contact with the top cover (1), reading of the dial indicator (2), the heating plate (8) heats a self-supporting solid phase, and the temperature sensor (10) detects that the temperature rises to the temperature of experimental design; and placing the self-supporting solid phase in the blind hole, operating the pressure bearing table (4) to move upwards until the pressure displayed by the pressure gauge (5) reaches the set pressure, reading the reading of the dial indicator (2), wherein the difference between the two readings of the dial indicator (2) is the seam width.
2. The self-supporting solid phase support seam width testing device according to claim 1, wherein the number of the first guide rod (31) and the second guide rod (32) is at least two, the first guide rod (31) and the second guide rod (32) are stud guide rods, both ends of the top cover (1) and the bottom plate (6) are symmetrically provided with groove holes corresponding to the first guide rod (31) and the second guide rod (32), inner walls of the groove holes are provided with internal threads, and the first guide rod (31) and the second guide rod (32) are detachably connected with the top cover (1) and the bottom plate (6) through threads.
3. The self-supporting solid phase support slit width testing device of claim 1, wherein the hydraulic device (7) comprises a hydraulic cylinder (71), a hydraulic handle (72), and a hydraulic rod (73);
the hydraulic cylinder (71) is arranged at the center of the bottom plate (6), and the pressure gauge (5), the hydraulic handle (72) and the hydraulic rod (73) are arranged on the hydraulic cylinder (71); the hydraulic rod (73) is abutted against the center of the pressure bearing table (4).
4. The self-supporting solid phase support slit width testing device of claim 1, characterized in that the heating plate (8) is at least one piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777107.5A CN110725676B (en) | 2018-07-16 | 2018-07-16 | Support solid phase and support seam width testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777107.5A CN110725676B (en) | 2018-07-16 | 2018-07-16 | Support solid phase and support seam width testing device |
Publications (2)
| Publication Number | Publication Date |
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| CN110725676A CN110725676A (en) | 2020-01-24 |
| CN110725676B true CN110725676B (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810777107.5A Active CN110725676B (en) | 2018-07-16 | 2018-07-16 | Support solid phase and support seam width testing device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7770647B2 (en) * | 2008-10-29 | 2010-08-10 | ACT Operating Company | Hydraulic fracturing of subterranean formations |
| CN100594289C (en) * | 2009-04-01 | 2010-03-17 | 西南石油大学 | Apparatus and method for measuring proppant insert depth |
| CN102183796B (en) * | 2011-03-02 | 2012-09-12 | 西南石油大学 | Testing device and method for simulating backflow of propping agent |
| WO2015200665A1 (en) * | 2014-06-27 | 2015-12-30 | Imerys Oilfield Minerals, Inc. | Proppant-based chemical delivery system |
| CN204804827U (en) * | 2015-06-05 | 2015-11-25 | 中国石油天然气股份有限公司 | Measurement system of proppant embedment degree of depth |
| CN105301192B (en) * | 2015-10-29 | 2017-05-10 | 西南石油大学 | Experimental device and method for simulating single-crack flowback after shale gas fracturing |
| CN105484722B (en) * | 2015-11-25 | 2018-06-05 | 中国石油大学(华东) | The device and method of work of a kind of analog channel fracturing pump note mode and Measurement channel rate |
| CN206696081U (en) * | 2017-05-27 | 2017-12-01 | 三峡大学 | A kind of rock triaxial test rock sample ejecting device |
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