CN111350492A - Method and device for packaging underground pressure sensor - Google Patents
Method and device for packaging underground pressure sensor Download PDFInfo
- Publication number
- CN111350492A CN111350492A CN201911389643.9A CN201911389643A CN111350492A CN 111350492 A CN111350492 A CN 111350492A CN 201911389643 A CN201911389643 A CN 201911389643A CN 111350492 A CN111350492 A CN 111350492A
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- Prior art keywords
- pressure
- section
- sensor
- silicone oil
- steel pipe
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229920002545 silicone oil Polymers 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 239000013307 optical fiber Substances 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
-
- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of underground sensors, in particular to an underground pressure sensor packaging method and device, which comprises an internal pressure inlet section, a pressure diaphragm sealing device, a silicone oil injection section, a sensor mounting section, a pressure guide section and a steel pipe fixing section; one end of the internal pressure inlet section is fixedly connected with one end of the silicone oil injection section through threads, one end of the pressure diaphragm sealing device is fixedly connected with one end of the silicone oil injection section through threads, the other end of the silicone oil injection section is respectively fixedly connected with one end of the sensor mounting section and one end of the pressure guide section through threads, and the other end of the sensor mounting section is fixedly connected with the steel pipe fixing section through threads, so that the invention has the beneficial effects that: the invention has simple structure and simple and convenient installation; the optical fiber pressure sensor is packaged, pressure real-time monitoring is achieved in a severe underground environment, cost is low, and the application range is wide.
Description
Technical Field
The invention relates to the technical field of underground sensors, in particular to an underground pressure sensor packaging method and device.
Background
Accurate measurement of downhole pressure is of great significance to normal production in an oil field. According to the underground pressure data, the reservoir pressure and the average reservoir pressure of each point can be determined, and the reservoir pressure is essential basic data for describing the type of the oil and gas reservoir, calculating the geological reserves, knowing the current dynamics of the oil and gas reservoir and predicting the future dynamics.
The traditional electronic sensor cannot work in a severe underground environment due to the influence of factors such as high temperature, high pressure, corrosion, electromagnetic interference and the like. Although the optical fiber pressure sensor has the advantages of corrosion resistance, electromagnetic interference resistance and the like, how to package the optical fiber pressure sensor and realize real-time monitoring of the underground pressure by using the optical fiber pressure sensor has important significance.
Disclosure of Invention
The invention aims to provide a method and a device for packaging an underground pressure sensor, wherein the device has the advantages of convenience in installation, high temperature resistance, high pressure resistance, corrosion resistance and the like.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
1. a downhole pressure sensor packaging device is characterized by comprising an internal pressure inlet section, a pressure diaphragm sealing device, a silicone oil injection section, a sensor mounting section, a pressure guide section and a steel pipe fixing section; the pressure sensor comprises a sensor mounting section, a pressure membrane sealing device, a pressure diaphragm sealing device, a sensor mounting section, a pressure guide section and a steel pipe fixing section, wherein one end of the pressure inlet section is fixedly connected with one end of the pressure membrane sealing device through threads, one end of the pressure diaphragm sealing device is fixedly connected with one end of the pressure membrane sealing device through threads, the other end of the pressure membrane sealing device.
Furthermore, the inlet position of the internal pressure inlet section is fixedly connected with an internal pressure transmission pipe.
Furthermore, one end of the pressure diaphragm sealing device is fixedly provided with a pressure diaphragm.
Further, the silicone oil injection section is provided with an oil injection port and a screw.
Further, the sensor mounting section is provided with a clamping sleeve pipe interface and an optical fiber fixing diaphragm.
Further, the pressure guide section 7 comprises a pressure guide pipe pressure sensitive component.
A method for packaging a downhole pressure sensor,
1) one end of a pressure diaphragm sealing device is fixedly connected with one end of a silicone oil injection section through threads, a pressure diaphragm 2 is welded on the pressure diaphragm sealing device, and one end of an internal pressure inlet section is fixedly connected with one end of the silicone oil injection section through threads;
2) the other end of the silicone oil injection section is respectively and fixedly connected with one end of the sensor mounting section and one end of the pressure guide section through threads, and an optical fiber fixing diaphragm is mounted inside the sensor mounting section; the other end of the sensor mounting section is fixedly connected with the steel pipe fixing section through threads;
3) the steel pipe with the optical fiber reaches the sensor installation section through the steel pipe fixing section, the steel pipe is fixed in the sensor installation section through the clamping sleeve joint, the optical fiber in the steel pipe enters the sensor installation section along the steel pipe fixing section, and the optical fiber is fixed at the optical fiber fixing membrane;
4) the optical fiber is connected with the pressure sensor after entering the sensor mounting section, silicone oil is injected into the silicone oil injection section, so that the silicone oil is filled in the whole silicone oil injection section, and the screw is fastened with the oil injection port;
5) the transmission pipe of pressing in will pressing the import position fixed connection of import section in, the transmission pipe of pressing in transmits pressure to the interior entrance of pressing inside, the pressure transmission of the inside pressure of the entrance of pressing gives pressure diaphragm, pressure diaphragm gives the inside silicon oil of annotating the silicon oil section with pressure transmission, pressure transmission of the inside silicon oil of annotating the silicon oil section gives pressure-transmitting pipe pressure sensitive part, the inside pressure sensor of sensor installation section, can realize pressure monitoring, monitoring data transmits ground through the optic fibre in the steel pipe.
The invention has the beneficial effects that: the invention has simple structure and simple and convenient installation; the optical fiber pressure sensor is packaged, pressure real-time monitoring is achieved in a severe underground environment, cost is low, and the application range is wide.
Drawings
FIG. 1 is a schematic diagram of a downhole pressure sensor package assembly according to the present invention;
FIG. 2 is a graph showing the results of a downhole pressure sensor packaging method according to the present invention.
Description of reference numerals:
1. an internal pressure inlet section 2, a pressure diaphragm 3, a pressure diaphragm sealing device,
4. a silicone oil injection section 43, an oil injection port 5 and a screw,
6. a sensor mounting section 63, a clamping sleeve interface 7 and a pressure guide section,
72. a pressure sensitive component of the pressure guide pipe, 8-an optical fiber fixing diaphragm, 9-a steel pipe fixing section,
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, a downhole pressure sensor packaging device comprises an internal pressure inlet section 1, a pressure diaphragm sealing device 3, a silicone oil injection section 4, a sensor mounting section 6, a pressure guide section 7 and a steel pipe fixing section 9; the pressure inlet section 1 one end passes through the screw thread fastening with annotating 4 one ends of silicone oil section and is connected, the 3 one end of pressure diaphragm sealing device passes through the screw thread fastening with annotating 4 one ends of silicone oil section and is connected, annotate the 4 other ends of silicone oil section respectively with sensor erection section 6, lead 7 one ends of pressure section and pass through the screw thread fastening and be connected, the sensor erection section 6 other end passes through the screw thread fastening and is connected with steel pipe canned paragraph 9, the transmission pipe in the import position fixed connection of pressure inlet section 1, 3 one end fixed mounting pressure diaphragms 2 of pressure diaphragm sealing device, annotate silicone oil section 4 and set up oiling mouth 43 and screw 5, sensor erection section 6 sets up cutting ferrule interface 63 and optic fibre fixed diaphragm 8, lead pressure section 7 and include pressure-sensitive part.
A method for packaging a downhole pressure sensor is provided,
1) one end of a pressure diaphragm sealing device 3 is fixedly connected with one end of a silicone oil injection section 4 through threads, a pressure diaphragm 2 is welded on the pressure diaphragm sealing device 3, and one end of an internal pressure inlet section 1 is fixedly connected with one end of the silicone oil injection section 4 through threads;
2) the other end of the silicone oil injection section 4 is respectively and fixedly connected with one end of the sensor installation section 6 and one end of the pressure guide section 7 through threads, and an optical fiber fixing diaphragm 8 is installed inside the sensor installation section 6; the other end of the sensor mounting section 6 is fixedly connected with the steel pipe fixing section 9 through threads;
3) the steel pipe with the optical fiber reaches the sensor installation section 6 through the steel pipe fixing section 9, the steel pipe is fixed in the sensor installation section 6 through the clamping sleeve joint 63, the optical fiber in the steel pipe enters the sensor installation section 6 along the steel pipe fixing section 9, and the optical fiber is fixed at the optical fiber fixing diaphragm 8;
4) the optical fiber enters the sensor mounting section 6 and then is connected with the pressure sensor, silicone oil is injected into the silicone oil injection section 4, so that the silicone oil is filled in the whole silicone oil injection section 4, and the screw 5 is fastened with the oil injection port 43;
5) the transmission pipe of pressing in with the import position fixed connection of interior pressure import section 1, the transmission pipe of pressing in transmits pressure to interior pressure import section 1 inside, pressure diaphragm 2 is transmitted to the pressure of interior pressure import section 1 inside, pressure diaphragm 2 transmits pressure to annotate the inside silicon oil of silicon oil section 4, annotate the pressure transmission of the inside silicon oil of silicon oil section and transmit pressure sensitive part 72 for the impulse pipe, the inside pressure sensor of sensor installation section 6, can realize pressure monitoring, monitoring data passes through the optical fiber transmission to ground in the steel pipe.
In order to test the pressure resistance of the underground pressure sensor packaging device, a pressurizing pump is directly connected to the inlet position of the internal pressure inlet section 1, and pressure is transmitted to the inside of the underground pressure sensor packaging device through the pressurizing pump. The pressurizing pump reaches 100MPa from 0MPa within 30 minutes, the pressure is maintained for 240 hours, and the test result curve is shown in figure 2: according to the test result curve, the pressure resistance of the underground pressure sensor packaging device reaches more than 100 MPa.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", "end", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. A downhole pressure sensor packaging device is characterized by comprising an internal pressure inlet section, a pressure diaphragm sealing device, a silicone oil injection section, a sensor mounting section, a pressure guide section and a steel pipe fixing section; the pressure sensor comprises a sensor mounting section, a pressure membrane sealing device, a pressure diaphragm sealing device, a sensor mounting section, a pressure guide section and a steel pipe fixing section, wherein one end of the pressure inlet section is fixedly connected with one end of the pressure membrane sealing device through threads, one end of the pressure diaphragm sealing device is fixedly connected with one end of the pressure membrane sealing device through threads, the other end of the pressure membrane sealing device.
2. The downhole pressure sensor package of claim 1, wherein the inlet of the internal pressure inlet section is fixedly connected to the internal pressure transmission tube.
3. The downhole pressure sensor package of claim 1, wherein the pressure diaphragm seal is fixedly attached to the pressure diaphragm at one end.
4. The downhole pressure sensor package of claim 1, wherein the silicone injection section is provided with oil injection ports and screws.
5. The downhole pressure sensor package of claim 1, wherein the sensor mounting section is configured with a ferrule interface and a fiber fixation diaphragm.
6. A downhole pressure sensor package according to claim 1, wherein the impulse section 7 comprises an impulse tube pressure sensitive member.
7. A downhole pressure sensor packaging method according to claim 1-6,
1) one end of a pressure diaphragm sealing device is fixedly connected with one end of a silicone oil injection section through threads, a pressure diaphragm 2 is welded on the pressure diaphragm sealing device, and one end of an internal pressure inlet section is fixedly connected with one end of the silicone oil injection section through threads;
2) the other end of the silicone oil injection section is respectively and fixedly connected with one end of the sensor mounting section and one end of the pressure guide section through threads, and an optical fiber fixing diaphragm is mounted inside the sensor mounting section; the other end of the sensor mounting section is fixedly connected with the steel pipe fixing section through threads;
3) the steel pipe with the optical fiber reaches the sensor installation section through the steel pipe fixing section, the steel pipe is fixed in the sensor installation section through the clamping sleeve joint, the optical fiber in the steel pipe enters the sensor installation section along the steel pipe fixing section, and the optical fiber is fixed at the optical fiber fixing membrane;
4) the optical fiber is connected with the pressure sensor after entering the sensor mounting section, silicone oil is injected into the silicone oil injection section, so that the silicone oil is filled in the whole silicone oil injection section, and the screw is fastened with the oil injection port;
5) the transmission pipe of pressing in will pressing the import position fixed connection of import section in, the transmission pipe of pressing in transmits pressure to the interior entrance of pressing inside, the pressure transmission of the inside pressure of the entrance of pressing gives pressure diaphragm, pressure diaphragm gives the inside silicon oil of annotating the silicon oil section with pressure transmission, pressure transmission of the inside silicon oil of annotating the silicon oil section gives pressure-transmitting pipe pressure sensitive part, the inside pressure sensor of sensor installation section, can realize pressure monitoring, monitoring data transmits ground through the optic fibre in the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389643.9A CN111350492A (en) | 2019-12-30 | 2019-12-30 | Method and device for packaging underground pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911389643.9A CN111350492A (en) | 2019-12-30 | 2019-12-30 | Method and device for packaging underground pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111350492A true CN111350492A (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911389643.9A Pending CN111350492A (en) | 2019-12-30 | 2019-12-30 | Method and device for packaging underground pressure sensor |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311561B1 (en) * | 1997-12-22 | 2001-11-06 | Rosemount Aerospace Inc. | Media compatible pressure sensor |
| KR20090128996A (en) * | 2008-06-12 | 2009-12-16 | 주식회사 아이세스 | Water pressure sensor using an optical fiber sensor |
| CN101709638A (en) * | 2009-11-24 | 2010-05-19 | 山东省科学院激光研究所 | Novel optical fiber temperature and pressure sensor |
| CN101718605A (en) * | 2009-12-03 | 2010-06-02 | 李维平 | Sensor for measuring pressure of water in soil at bottom of dam, river and lake and measuring method |
| CN102103028A (en) * | 2009-12-16 | 2011-06-22 | 中国石油天然气股份有限公司 | Sealing method of optical fiber pressure sensor |
| CN203547728U (en) * | 2013-07-29 | 2014-04-16 | 杭州瑞利声电技术公司 | Small tension and pressure logger |
| JP2015096807A (en) * | 2013-11-15 | 2015-05-21 | 株式会社日立製作所 | Pressure measurement device and pressure measurement method |
| US20190257191A1 (en) * | 2011-03-24 | 2019-08-22 | Merlin Technology Inc. | Sonde with integral pressure sensor and method |
| CN212406707U (en) * | 2019-12-30 | 2021-01-26 | 天津新星科能源技术有限公司 | Underground pressure sensor packaging device |
-
2019
- 2019-12-30 CN CN201911389643.9A patent/CN111350492A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311561B1 (en) * | 1997-12-22 | 2001-11-06 | Rosemount Aerospace Inc. | Media compatible pressure sensor |
| KR20090128996A (en) * | 2008-06-12 | 2009-12-16 | 주식회사 아이세스 | Water pressure sensor using an optical fiber sensor |
| CN101709638A (en) * | 2009-11-24 | 2010-05-19 | 山东省科学院激光研究所 | Novel optical fiber temperature and pressure sensor |
| CN101718605A (en) * | 2009-12-03 | 2010-06-02 | 李维平 | Sensor for measuring pressure of water in soil at bottom of dam, river and lake and measuring method |
| CN102103028A (en) * | 2009-12-16 | 2011-06-22 | 中国石油天然气股份有限公司 | Sealing method of optical fiber pressure sensor |
| US20190257191A1 (en) * | 2011-03-24 | 2019-08-22 | Merlin Technology Inc. | Sonde with integral pressure sensor and method |
| CN203547728U (en) * | 2013-07-29 | 2014-04-16 | 杭州瑞利声电技术公司 | Small tension and pressure logger |
| JP2015096807A (en) * | 2013-11-15 | 2015-05-21 | 株式会社日立製作所 | Pressure measurement device and pressure measurement method |
| CN212406707U (en) * | 2019-12-30 | 2021-01-26 | 天津新星科能源技术有限公司 | Underground pressure sensor packaging device |
Non-Patent Citations (1)
| Title |
|---|
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