CN111322061A - Pressure gauge for high-pressure water injection well - Google Patents
Pressure gauge for high-pressure water injection well Download PDFInfo
- Publication number
- CN111322061A CN111322061A CN202010317795.4A CN202010317795A CN111322061A CN 111322061 A CN111322061 A CN 111322061A CN 202010317795 A CN202010317795 A CN 202010317795A CN 111322061 A CN111322061 A CN 111322061A
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- China
- Prior art keywords
- shell
- pressure gauge
- seat
- temperature sensor
- gauge
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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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 239000011229 interlayer Substances 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 20
- 238000005485 electric heating Methods 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a high-pressure water injection well pressure gauge, which comprises a pressure gauge head, a gauge stand shell, an electric heating pipe, a heating interlayer shell, a protective shell, a control unit, a temperature sensor, a needle valve and a liquid discharge plug, wherein the gauge stand shell and the heating interlayer shell form a columnar heating interlayer, the electric heating pipe and a heating medium are arranged in the annular heating interlayer shell, the protective shell is arranged on the surface of the heating interlayer shell, a display screen and a control panel are arranged on the surface of the protective shell, the single chip microcomputer control unit is arranged in the protective shell, the temperature sensor for measuring the water temperature in the gauge stand shell is arranged on the gauge stand shell through a temperature sensor seat, the electric heating pipe, the display screen, the control panel and the temperature sensor are all electrically connected with the control unit, therefore, the control unit can perform feedback adjustment on the water temperature in the gauge stand shell, the freezing and blocking problems of the pressure gauge under the low temperature, the pressure gauge is convenient to install and detach under the condition of a high-pressure water injection pipeline.
Description
Technical Field
The invention relates to the technical field of oilfield development, in particular to a pressure gauge of a high-pressure water injection well.
Background
At present, about 2/3 in the reservoir reserves is domestically proved to be mainly low-permeability reservoirs, and the reservoir reservoirs have the characteristics of low permeability and low abundance and are generally developed by water injection operation; however, such oil fields often have complicated underground conditions, poor formation connectivity and inconsistent water injection effects, so that a water injection high-pressure area is generated, and along with development, the pipeline formation will change, so that the pressure burden of water injection operation is further increased, and a water injection well bears higher pressure.
Compared with common equipment, a high-pressure water injection well needs water injection equipment with higher pressure resistance, such as a special water injection pressure gauge suitable for the high-pressure water injection well, the conventional high-pressure water injection pressure gauge is often installed by simply directly arranging a pressure gauge seat on a wellhead pipeline, arranging a pressure gauge with a needle valve on the pressure gauge seat, and arranging the high-pressure water injection pressure gauge in a cold area, wherein the working water is influenced by the air temperature, the icing phenomenon is frequently generated at the pressure gauge, the freezing blockage is caused, and the pressure gauge cannot normally work and is not convenient to detach and maintain; in addition, under the high pressure condition, the needle valve of the pressure gauge is difficult to open and close smoothly, and the installation and the removal of the pressure gauge are influenced.
Disclosure of Invention
Aiming at various problems of the conventional pressure gauge in the application of a high-pressure water injection well, the invention provides the pressure gauge for the high-pressure water injection well, which can solve the problems of related defects.
The main technical scheme of the invention is as follows:
a pressure gauge for a high-pressure water injection well comprises a pressure gauge head, a gauge stand shell, an electric heating pipe, a heating interlayer shell, a protective shell, a temperature sensor seat, a temperature sensor, a needle valve, a liquid drainage seat, a liquid drainage plug and connecting threads, wherein the pressure gauge is in threaded connection with the gauge stand shell; the heating interlayer shell is wrapped on the outer side of the meter seat shell and forms an annular columnar interlayer with the meter seat shell; the electric heating pipe is arranged in the annular columnar interlayer in a manner that a base head is in threaded connection with the heating interlayer shell; the protective shell is connected and installed on one side of the heating interlayer shell through a connecting bolt; the temperature sensor seat is arranged on the surface of the meter seat shell, and a temperature sensor in threaded connection with the temperature sensor seat is arranged on the temperature sensor seat; the needle valve is arranged on the meter seat shell, two groups of liquid drainage seats are respectively arranged on the surface of the meter seat shell on two sides of the needle valve, and each group of liquid drainage seats is screwed with a liquid drainage plug through threads; the opposite side surface of the gauge stand shell, which is provided with one end of the pressure gauge head, is also provided with connecting threads.
Furthermore, a display screen and a control panel are respectively arranged on the plane of the protective shell, and a control unit is further arranged in a space formed by the protective shell and the heating interlayer shell.
Further, a heat insulation pad is arranged between the control unit and the heating interlayer shell.
Furthermore, the control unit is respectively electrically connected with the display screen, the control panel, the electric heating pipe and the temperature sensor.
Furthermore, a medium inlet and a medium outlet which are communicated with the annular columnar interlayer are respectively arranged on the heating interlayer shell.
Furthermore, a liquid channel connected with the inside of the meter seat shell is arranged inside the liquid drainage plug, a ring-mounted liquid drainage groove communicated with the outside of the liquid drainage seat is formed in the inner wall of the liquid drainage seat, and the liquid channel is not communicated with the liquid drainage groove when the liquid drainage plug is screwed.
Preferably, the control unit is an integrated control system formed by a single chip microcomputer AT89C 2051.
Preferably, the temperature sensor is of a type DS18B 20.
The invention has the advantages that:
1. the outer side of the pressure gauge seat is provided with a shell to form an interlayer, a heating pipe and a medium which are controlled by a control unit are arranged in the interlayer to heat the inside of the pressure gauge seat, and the water temperature in the pressure gauge seat can be automatically adjusted to a normal measuring range under the control of a temperature sensor arranged on the pressure gauge seat, so that the pressure gauge failure caused by low temperature in a cold area is prevented from being frozen and blocked.
2. The two sides of the needle valve are provided with the liquid discharge seat and the liquid discharge plug, so that the pressure difference between the two sides of the valve body can be reduced, and the needle valve can be opened and closed conveniently.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view at A;
FIG. 3 is a circuit schematic of the present invention;
in the figure, 1 is a pressure gauge head, 2 is a gauge seat shell, 3 is an electric heating pipe, 4 is a heating interlayer shell, 401 is a medium inlet, 402 is a medium outlet, 5 is a protective shell, 501 is a control unit, 502 is a display screen, 503 is a control board, 504 is a heat insulation pad, 505 is a connecting bolt, 6 is a temperature sensor seat, 7 is a temperature sensor, 8 is a needle valve, 9 is a liquid drainage seat, 10 is a liquid drainage plug, 1001 is a liquid channel, 1002 is a liquid drainage groove, and 11 is a connecting thread.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.
Example (b):
referring to fig. 1 to 3, a pressure gauge head 1 is in threaded connection with a gauge seat housing 2, a heating interlayer housing 4 is wrapped outside the gauge seat housing 2 to form a ring-column-shaped interlayer with the gauge seat housing 2, an electric heating pipe 3 is arranged in the ring-column-shaped interlayer in a manner that the seat head is in threaded connection with the heating interlayer housing 4, a protective shell 5 is connected and installed on one side of the heating interlayer housing 4 through a connecting bolt 505, a display screen 502 and a control panel 503 are respectively arranged on the plane of the protective shell 5, a control unit 501 is further arranged in a space formed by the protective shell 5 and the heating interlayer housing 4, the control unit 501 is an integrated control system formed by a single chip microcomputer AT89C2051, a heat insulation pad 504 is further arranged between the control unit 501 and the heating interlayer housing 4, a temperature sensor seat 6 is arranged on the surface of the gauge seat housing 2, a temperature sensor 7 in threaded connection with the temperature sensor seat 6 is arranged on the temperature sensor, the needle valve 8 is arranged on the gauge stand shell 2, two groups of liquid drainage seats 9 are further respectively arranged on the surface of the gauge stand shell 2 on two sides of the needle valve 8, a liquid drainage plug 10 is screwed on each group of liquid drainage seats 9 through threads, a liquid channel 1001 connected with the inside of the gauge stand shell 2 is arranged inside the liquid drainage plug 10, an annular liquid drainage groove 1002 communicated with the outside of the liquid drainage seat 9 is formed in the inner wall of the liquid drainage seat 9, the liquid channel 1001 is not communicated with the liquid drainage groove 1002 when the liquid drainage plug 10 is screwed, a connecting thread 11 is further arranged on the opposite side surface of one end, provided with the pressure gauge head 1, of the gauge stand shell 2, a control unit 501 is respectively electrically connected with the display screen 502, the control panel 503, the electric heating pipe 3 and the temperature sensor 7, and a medium inlet 401 and a medium outlet 402 communicated with the annular.
In the embodiment, the opposite side surface of gauge stand casing 2, which is provided with one end of pressure gauge head 1, is provided with connecting thread 11, so that the whole pressure gauge can be conveniently installed and arranged on the pressure gauge stand head in a water injection pipeline at any position, the gauge stand casing 2 and the heating interlayer casing 4 form an annular columnar interlayer, an electric heating pipe 3 is arranged in the interlayer, a pipe seat of the electric heating pipe 3 is connected with the heating interlayer casing through threads, so that the electric heating pipe is convenient to detach and replace, meanwhile, the heating interlayer casing 4 is respectively provided with a medium inlet 401 and a medium outlet 402, and heat-conducting media can be injected into and discharged from the heating interlayer according.
Meanwhile, an integrated control unit 501 with a single chip microcomputer AT89C2051 as a controller is arranged in a protective shell 5 on one side surface of a heating interlayer shell 4, the protective shell 5 is connected with the heating interlayer shell 4 through a connecting bolt 505, and a layer of heat insulation pad 504 is arranged between the control unit 501 and the heating interlayer shell 4 to protect the control unit 501; the electric heating tube 3 is electrically connected with the control unit 501, and the integrated control unit 501 controls the operation of the electric heating tube 3; the surface of the protective shell 5 is also provided with a display screen 502 and a control board 503 respectively, which are electrically connected with the control unit 501, and the control board 503 can be used for presetting and inputting temperature values to be kept.
In addition, a temperature sensor seat 6 is also arranged on the gauge seat shell 2, a temperature sensor 7 capable of detecting the water temperature inside the gauge seat shell 2 is installed on the temperature sensor seat 6 in a threaded manner, the temperature sensor 7 is also electrically connected with the control unit, after the pressure gauge is installed, an external power supply is connected, the control unit 501 is started on the control panel 503, the water temperature range of the normal work of the pressure gauge is set, at the moment, the water temperature information inside the gauge seat shell 2 is collected and transmitted to the control unit 501 by the temperature sensor 7 and is reflected on the display screen 502, if the measured temperature is lower than the set temperature to be kept, the electric heating pipe 3 is controlled to heat the heating medium in the heating interlayer after the processing of the control unit 501, so that the temperature of the water inside the gauge seat shell 2 is raised to the set normal work temperature, and then the electric heating pipe 3 stops heating under the control of the, the phenomenon of freezing and blocking of the pressure gauge can be avoided, energy is saved, when the temperature sensor 7 detects that the water temperature is reduced to a value below a normal working range, the water temperature in the pressure gauge is fed back and adjusted through the control unit 501 again, and therefore continuous normal working of the pressure gauge in a low-temperature area is guaranteed.
When the pressure gauge needs to be decompressed and disassembled, the liquid discharging plugs 10 on the liquid discharging seats 9 on the two sides of the needle valve 8 can be firstly unscrewed, so that the liquid channel 1001 in the liquid discharging plugs 10 is communicated with the liquid discharging groove 1002 on the liquid discharging seats 9, liquid in the pressure gauge seeps out through the liquid channel 1001 and the liquid discharging groove 1002, the pressure difference between the two sides of the needle valve 8 is reduced, the needle valve 8 is convenient to open and close, and the problem that the needle valve 8 is inconvenient to open and close due to the fact that the pressure gauge bears too high pressure under the high-pressure condition is solved.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The pressure gauge for the high-pressure water injection well is characterized by comprising a pressure gauge head (1), a gauge stand shell (2), an electric heating pipe (3), a heating interlayer shell (4), a protective shell (5), a temperature sensor seat (6), a temperature sensor (7), a needle valve (8), a liquid drainage seat (9), a liquid drainage plug (10) and connecting threads (11), wherein the pressure gauge head (1) is in threaded connection with the gauge stand shell (2); the heating interlayer shell (4) is wrapped on the outer side of the meter seat shell (2) and forms an annular column-shaped interlayer with the meter seat shell (2); the electric heating pipe (3) is arranged in the annular columnar interlayer in a manner that a seat head is in threaded connection with the heating interlayer shell (4); the protective shell (5) is connected and installed on one side of the heating interlayer shell (4) through a connecting bolt (505); the temperature sensor seat (6) is arranged on the surface of the meter seat shell (2), and a temperature sensor (7) in threaded connection with the temperature sensor seat (6) is arranged on the temperature sensor seat; the needle valve (8) is arranged on the gauge stand shell (2), two groups of liquid drainage seats (9) are respectively arranged on the surface of the gauge stand shell (2) on two sides of the needle valve (8), and liquid drainage plugs (10) are screwed in each group of liquid drainage seats (9) through threads; the surface of the gauge stand shell (2) opposite to the end provided with the pressure gauge head (1) is also provided with a connecting thread (11).
2. The pressure gauge for high-pressure water injection well according to claim 1, wherein: the protective shell is characterized in that a display screen (502) and a control panel (503) are respectively arranged on the plane of the protective shell (5), and a control unit (501) is further arranged in a space formed by the protective shell (5) and the heating interlayer shell (4).
3. The pressure gauge for high-pressure water injection well according to claim 2, wherein: and a heat insulation pad (504) is also arranged between the control unit (501) and the heating interlayer shell (4).
4. The pressure gauge for high-pressure water injection well according to claim 2, wherein: the control unit (501) is respectively and electrically connected with the display screen (502), the control panel (503), the electric heating pipe (3) and the temperature sensor (7).
5. The pressure gauge for high-pressure water injection well according to claim 2, wherein: the control unit (501) is an integrated control system formed by a single chip microcomputer AT89C 2051.
6. The pressure gauge for high-pressure water injection well according to claim 1, wherein: the type of the temperature sensor (7) is DS18B 20.
7. The pressure gauge for high-pressure water injection well according to claim 1, wherein: and a medium inlet (401) and a medium outlet (402) which are communicated with the annular columnar interlayer are respectively arranged on the heating interlayer shell (4).
8. The pressure gauge for high-pressure water injection well according to claim 1, wherein: the liquid discharging device is characterized in that a liquid channel (1001) connected with the inside of the meter seat shell (2) is arranged inside the liquid discharging plug (10), an annular liquid discharging groove (1002) communicated with the outer side of the liquid discharging seat (9) is formed in the inner wall of the liquid discharging seat (9), and the liquid channel (1001) is not communicated with the liquid discharging groove (1002) when the liquid discharging plug (10) is screwed tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317795.4A CN111322061A (en) | 2020-04-21 | 2020-04-21 | Pressure gauge for high-pressure water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010317795.4A CN111322061A (en) | 2020-04-21 | 2020-04-21 | Pressure gauge for high-pressure water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111322061A true CN111322061A (en) | 2020-06-23 |
Family
ID=71164592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010317795.4A Pending CN111322061A (en) | 2020-04-21 | 2020-04-21 | Pressure gauge for high-pressure water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111322061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696613A (en) * | 2021-02-26 | 2021-04-23 | 西南石油大学 | Anti-freezing and anti-blocking throttling oil nozzle |
-
2020
- 2020-04-21 CN CN202010317795.4A patent/CN111322061A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696613A (en) * | 2021-02-26 | 2021-04-23 | 西南石油大学 | Anti-freezing and anti-blocking throttling oil nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200623 |
|
| WD01 | Invention patent application deemed withdrawn after publication |