CN214464052U - Pressure regulation and control device of packer - Google Patents
Pressure regulation and control device of packer Download PDFInfo
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- CN214464052U CN214464052U CN202023275541.5U CN202023275541U CN214464052U CN 214464052 U CN214464052 U CN 214464052U CN 202023275541 U CN202023275541 U CN 202023275541U CN 214464052 U CN214464052 U CN 214464052U
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Abstract
The utility model belongs to the field of drilling tests, in particular to a pressure regulating device of a packer, which comprises an industrial nitrogen cylinder, a pressure control panel, the packer, a vacuum pump, a pressure gauge a, a pressure-resistant water storage tank and a water tank; wherein, the branch pipe of industry nitrogen cylinder and the branch pipe of vacuum pump meet the back through the access connection of trunk line and withstand voltage water storage tank, and the export of withstand voltage water storage tank passes through the pipeline and is connected with pressure control panel, and industry nitrogen cylinder passes through the pipeline and is connected with pressure control panel, and pressure control panel is connected with packer and water tank respectively again. The utility model provides two packer pressurizing modes of nitrogen and water and a long-term pressure maintaining function, and has convenient processing and maintenance and strong weather resistance; the pressure relief device is simple, convenient and quick to operate, is suitable for drilling holes with different permeability and underground water levels, and can achieve pressure relief of the packer without injecting water into the drilling holes.
Description
Technical Field
The utility model belongs to a drilling test field, concretely relates to pressure regulation and control device of packer.
Background
In the fields of shale oil (gas) exploitation, pollution site investigation, radioactive waste disposal warehouse site selection, characteristic evaluation and the like, well washing and backwashing for drilling, hydraulic fracturing tests, drilling hydrogeological tests, underground water layered monitoring and other work which need to be carried out by drilling are necessary to be constructed, and the underground device is necessary for carrying out related work. The common main structure of the packer is a rigid body of an outer sleeve hollow rubber cylinder, and the working principle of the packer is that high-pressure nitrogen or water is injected into the rubber cylinder, so that the rubber cylinder expands and is tightly attached to the wall of a hole, and a plurality of hole sections are sealed and isolated in a drill hole. By means of the height difference between the ground and the packer, the ground applies smaller pressure, the packer rubber cylinder can obtain enough working pressure, and the pressurizing process is safe, convenient and fast.
The packer needs to extrude water in the rubber cylinder to realize pressure relief by means of the pressure difference between water in the drill hole and water in the rubber cylinder, and the shallow underground water level of the drill hole is a necessary condition for pressure relief by water injection plugs. When the groundwater level in the drill hole does not meet the requirement, water needs to be injected into the drill hole, and the groundwater level in the drill hole is artificially raised. The water injection process can affect the water chemical environment of underground water, and the drilling holes with high permeability and low water level require larger water quantity, so that the water injection time is prolonged.
Therefore, the pressure regulating device of the packer is needed to be provided, time consumed by pressure relief of the packer is reduced, cost is reduced, field work efficiency is improved, and the defects of the prior art are overcome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pressure regulation and control device of packer to the not enough of above-mentioned prior art, can keep packer operating pressure for a long time, realize with the drilling in the irrelevant water injection embolism pressure release of groundwater water level, improve on-the-spot work efficiency.
The technical scheme of the utility model is that:
a pressure regulating device of a packer comprises an industrial nitrogen cylinder, a pressure control plate, the packer, a vacuum pump, a pressure gauge a, a pressure-resistant water storage tank and a water tank;
wherein, the branch pipe of industry nitrogen cylinder and the branch pipe of vacuum pump meet the back through the access connection of trunk line and withstand voltage water storage tank, and the export of withstand voltage water storage tank passes through the pipeline and is connected with pressure control panel, and industry nitrogen cylinder passes through the pipeline and is connected with pressure control panel, and pressure control panel is connected with packer and water tank respectively again.
And a valve a is arranged on the branch pipe of the industrial nitrogen cylinder.
And a valve b is arranged on the branch pipe of the vacuum pump.
And a valve c is arranged on the main pipeline after the branch pipe of the industrial nitrogen cylinder and the branch pipe of the vacuum pump are converged.
And a pressure gauge a is arranged on the pressure-resistant water storage tank.
The pressure control plate is provided with two horizontal pipelines and a vertical pipeline in common, the end parts of the two horizontal pipelines are provided with a straight joint a, a straight joint b, a straight joint c and a straight joint d, a high-pressure ball valve a and a high-pressure ball valve b are arranged between the straight joint a and the straight joint c, and a high-pressure ball valve d and a high-pressure ball valve e are arranged between the straight joint b and the straight joint d.
And the straight joint a, the straight joint b, the straight joint c and the straight joint d are respectively connected with the industrial nitrogen cylinder, the pressure-resistant water storage tank, the packer and the water tank.
The top of one vertical pipeline is connected with a pressure gauge b, the middle of the vertical pipeline is provided with a high-pressure ball valve c, and the bottom of the vertical pipeline is used for controlling the pipeline to release pressure through a high-pressure ball valve f.
The utility model discloses following beneficial effect has:
(1) the pressure regulating device of the packer provided by the utility model provides two packer pressurizing modes of nitrogen and water and a long-term pressure maintaining function, and has the advantages of convenient processing and maintenance and strong weather resistance;
(2) the utility model provides a pressure regulation and control device of packer, it is simple and efficient to handle, is suitable for the drilling of different permeability and groundwater level, need not to annotate water in the drilling and can accomplish the pressure release of packer.
Drawings
Fig. 1 is an overall schematic view of a pressure control device of a packer provided by the present invention;
fig. 2 is the utility model provides a pressure control panel connection schematic diagram of the pressure regulation and control device of packer.
Wherein: 1-industrial nitrogen cylinder; 2-valve a; 3-a pressure control plate; 4-a packer; 5-a vacuum pump; 6-valve b; 7-valve c; 8-pressure gauge a; 9-pressure-resistant water storage tank; 10-a water tank; 11-terminal through joint a; 12-straight-through joint b; 13-straight-through joint c; 14-straight-through joint d; 15-high pressure ball valve a; 16-high pressure ball valve b; 17-high pressure ball valve c; 18-high pressure ball valve d; 19-high pressure ball valve e; 20-high pressure ball valve f; 21-pressure gauge b.
Detailed Description
The technology of the present invention is further described below:
as shown in figure 1, the utility model provides a pair of pressure regulation and control device of packer, the device include industry nitrogen cylinder 1, pressure control board 3, packer 4, vacuum pump 5, manometer a8, withstand voltage water storage tank 9, water tank 10.
Wherein, the branch pipe of industry nitrogen cylinder 1 and the branch pipe of vacuum pump 5 converge the back and pass through the access connection of trunk line and withstand voltage water storage tank 9, and the export of withstand voltage water storage tank 9 passes through the pipeline and is connected with pressure control panel 3, and industry nitrogen cylinder 1 passes through the pipeline and is connected with pressure control panel 3, and pressure control panel 3 is connected with packer 4 and water tank 10 respectively again.
The branch pipe of the industrial nitrogen cylinder 1 is provided with a valve a 2.
The branch pipe of the vacuum pump 5 is provided with a valve b 6.
A valve c7 is arranged on the main pipeline after the branch pipe of the industrial nitrogen cylinder 1 and the branch pipe of the vacuum pump 5 are merged.
The pressure-resistant water storage tank 9 is provided with a pressure gauge a 8.
As shown in fig. 2, the pressure control plate 3 is provided with two horizontal pipelines and a vertical pipeline in common, the end parts of the two horizontal pipelines are provided with a through joint a11, a through joint b12, a through joint c13 and a through joint d14, and a high-pressure ball valve a15 and a high-pressure ball valve b16 are arranged between the through joint a11 and the through joint c 13.
And a high-pressure ball valve d18 and a high-pressure ball valve e19 are arranged between the through joint b12 and the through joint d 14.
The through joint a11, the through joint b12, the through joint c13 and the through joint d14 are respectively connected with the industrial nitrogen cylinder 1, the pressure-resistant water storage tank 9, the packer 4 and the water tank 10;
the top of one vertical pipeline is connected with a pressure gauge b21, the middle of the vertical pipeline is provided with a high-pressure ball valve c17, and the bottom of the vertical pipeline is controlled by a high-pressure ball f20 to release pressure;
the functions of industrial nitrogen pressurization, water injection pressurization and drainage pressure relief of the packer are realized by changing the switching states of the high-pressure ball valve a15, the high-pressure ball valve b16, the high-pressure ball valve c17, the high-pressure ball valve d18 and the high-pressure ball valve e 19.
A method of controlling a pressure control device of a packer, the method comprising the steps of:
the method comprises the following steps: pressurizing the packer when industrial nitrogen is used;
step 1.1, opening a high-pressure ball valve a15 and a high-pressure ball valve b16, and closing all other valves;
step 1.2, opening a switch of an industrial nitrogen cylinder 1, adjusting output pressure and then conveying industrial nitrogen to a packer 4;
in the pressurizing process of the step 1.3, closing the high-pressure ball valve a15, and checking whether the reading of a pressure gauge b21 is consistent with the set output pressure;
step 1.4, if the reading of a pressure gauge b21 is lower than the set output pressure, opening a high-pressure ball valve a15 and continuing to pressurize the packer 4;
step 1.5, if the reading of the pressure gauge b21 is lower than the set output pressure and is consistent, keeping the high-pressure ball valve a15 closed, closing the high-pressure ball valve b16, opening the high-pressure ball valve f20, discharging residual industrial nitrogen in the pipeline of the pressure control plate 3, and ending the pressurization process of the packer 4.
Step two: when industrial nitrogen is used, the packer is decompressed;
step 2.1, opening the high-pressure ball valve c17 and the high-pressure ball valve f20, and closing all other valves;
step 2.2, opening a high-pressure ball valve b16, and discharging industrial nitrogen in the packer 4;
and 2.3, after no air flow exists in an air outlet at the lower part of the high-pressure ball valve f20, closing the high-pressure ball valve b16, the high-pressure ball valve c17 and the high-pressure ball valve f20, and finishing the pressure relief process of the packer 4.
Step three: injecting water into the pressure-resistant water storage tank;
step 3.1, the water storage tank 10 is placed at a high position, so that the bottom of the water storage tank is basically at the same height as a valve c7 at the top of the pressure-resistant water storage tank 9;
step 3.2, checking all the valves c7, turning to a closed state, and filling the water storage tank 10 with clear water;
3.3, opening the high-pressure ball valve e19, the high-pressure ball valve d18 and the valve c7 in sequence, and injecting water into the pressure-resistant water storage tank 9;
step 3.4, when water does not flow out from the valve c7 and the water level in the water storage tank 10 does not drop, continuously supplementing water into the water storage tank 10;
and 3.5, when water flows out from the valve c7, filling the pressure-resistant water storage tank 9 with water, closing the valve c7 and stopping water injection.
Step four: draining water from the pressure-resistant water storage tank;
step 4.1, opening a valve a2, a high-pressure ball valve d18 and a high-pressure ball valve f20, wherein other valves are in a closed state;
step 4.2, opening the industrial nitrogen cylinder 1, inputting nitrogen into the pressure-resistant water storage tank 9, and allowing water in the pressure-resistant water storage tank 9 to flow out through a pressure relief opening at the bottom of the high-pressure ball valve f 20;
and 4.3, when no water flows out from the pressure relief port at the bottom of the high-pressure ball valve f20, closing the industrial nitrogen cylinder 1 and finishing the drainage of the pressure-resistant water storage tank.
Step five: injecting water into the packer for pressurization;
step 5.1 referring to the step three, filling the pressure-resistant water storage tank 9 with water, and closing all valves;
step 5.2, opening a valve a2, a high-pressure ball valve b16, a high-pressure ball valve c17 and a high-pressure ball valve d 18;
step 5.3, opening the industrial nitrogen cylinder 1 according to the set output pressure, and injecting high-pressure nitrogen into the pressure-resistant water storage tank 9;
step 5.4, when the pressure displayed by a pressure gauge a8 of the pressure-resistant water storage tank 9 reaches the set output pressure, closing the pressure-resistant water storage tank, opening a high-pressure ball valve f20, and discharging residual water in a pipeline of a pressure control plate;
and 5.5, when the packer is used for monitoring the underground water stratification, keeping the industrial nitrogen cylinder 1, the valve a2, the high-pressure ball valve b16, the high-pressure ball valve c17 and the high-pressure ball valve d18 in an open state for a long time so as to keep the stable working pressure of the packer 4, and periodically referring to the step of supplementing water in the three-way high-pressure-resistant water storage tank 9.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.
Claims (8)
1. The utility model provides a pressure regulation and control device of packer which characterized in that: the device comprises an industrial nitrogen cylinder (1), a pressure control plate (3), a packer (4), a vacuum pump (5), a pressure gauge a (8), a pressure-resistant water storage tank (9) and a water tank (10);
wherein, the branch pipe of industry nitrogen cylinder (1) and the branch pipe of vacuum pump (5) join the back through the inlet connection of trunk line and withstand voltage water storage tank (9), and the export of withstand voltage water storage tank (9) is connected through pipeline and pressure control panel (3), and industry nitrogen cylinder (1) is connected through pipeline and pressure control panel (3), and pressure control panel (3) are connected with packer (4) and water tank (10) respectively again.
2. A pressure regulating device for a packer as claimed in claim 1, wherein: and a valve a (2) is arranged on the branch pipe of the industrial nitrogen cylinder (1).
3. A pressure regulating device for a packer as claimed in claim 2, wherein: and a valve b (6) is arranged on the branch pipe of the vacuum pump (5).
4. A pressure regulating device for a packer as claimed in claim 3, wherein: and a valve c (7) is arranged on a main pipeline after the branch pipe of the industrial nitrogen cylinder (1) and the branch pipe of the vacuum pump (5) are converged.
5. A pressure regulating device for a packer as claimed in claim 4, wherein: and a pressure gauge a (8) is arranged on the pressure-resistant water storage tank (9).
6. A pressure regulating device for a packer as claimed in claim 5, wherein: the pressure control plate (3) is provided with two horizontal pipelines and a vertical pipeline in common, the end parts of the two horizontal pipelines are provided with a straight joint a (11), a straight joint b (12), a straight joint c (13) and a straight joint d (14), a high-pressure ball valve a (15) and a high-pressure ball valve b (16) are arranged between the straight joint a (11) and the straight joint c (13), and a high-pressure ball valve d (18) and a high-pressure ball valve e (19) are arranged between the straight joint b (12) and the straight joint d (14).
7. The pressure regulating device of the packer as claimed in claim 6, wherein: the direct joint a (11), the direct joint b (12), the direct joint c (13) and the direct joint d (14) are respectively connected with the industrial nitrogen cylinder (1), the pressure-resistant water storage tank (9), the packer (4) and the water tank (10).
8. A pressure regulating device for a packer as claimed in claim 7, wherein: the top of one vertical pipeline is connected with a pressure gauge b (21), the middle of the vertical pipeline is provided with a high-pressure ball valve c (17), and the bottom of the vertical pipeline is controlled to release pressure through a high-pressure ball valve f (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275541.5U CN214464052U (en) | 2020-12-30 | 2020-12-30 | Pressure regulation and control device of packer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023275541.5U CN214464052U (en) | 2020-12-30 | 2020-12-30 | Pressure regulation and control device of packer |
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| CN214464052U true CN214464052U (en) | 2021-10-22 |
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| CN202023275541.5U Active CN214464052U (en) | 2020-12-30 | 2020-12-30 | Pressure regulation and control device of packer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664157A (en) * | 2020-12-30 | 2021-04-16 | 核工业北京地质研究院 | Pressure regulation and control device and method for packer |
| CN116242764A (en) * | 2023-03-17 | 2023-06-09 | 中国建筑一局(集团)有限公司 | Grouting material leakage experiment method |
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2020
- 2020-12-30 CN CN202023275541.5U patent/CN214464052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664157A (en) * | 2020-12-30 | 2021-04-16 | 核工业北京地质研究院 | Pressure regulation and control device and method for packer |
| CN116242764A (en) * | 2023-03-17 | 2023-06-09 | 中国建筑一局(集团)有限公司 | Grouting material leakage experiment method |
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