CN114293981B - Permanent direct-reading type downhole temperature and pressure tester - Google Patents
Permanent direct-reading type downhole temperature and pressure tester Download PDFInfo
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- CN114293981B CN114293981B CN202111562278.4A CN202111562278A CN114293981B CN 114293981 B CN114293981 B CN 114293981B CN 202111562278 A CN202111562278 A CN 202111562278A CN 114293981 B CN114293981 B CN 114293981B
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- 238000012360 testing method Methods 0.000 claims abstract description 107
- 238000009434 installation Methods 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 35
- 238000003825 pressing Methods 0.000 claims description 7
- 235000019198 oils Nutrition 0.000 abstract description 38
- 235000019476 oil-water mixture Nutrition 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000011161 development Methods 0.000 description 6
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a permanent direct-reading type downhole temperature and pressure tester, which comprises a body (9), wherein the body (9) is provided with a central channel; the outer circle of the body (9) is provided with a shoulder, the end face of the shoulder is provided with an electric installation hole (3) and a testing device installation hole (4), a circuit assembly (24) is arranged in the electric installation hole (3), and a pressure testing assembly (23) is arranged in the testing device installation hole (4); the electric installation hole (3) is communicated with the test device installation hole (4) through a wire hole (5); a pressure transmission hole (22) is arranged in the central channel of the body (9), and the pressure transmission hole (22) is communicated with the mounting hole (4) of the testing device. The spiral pipe is arranged at the front end of the pressure sensing surface of the pressure gauge, and isolation liquid is filled in the spiral pipe, so that the pressure gauge is prevented from being in direct contact with external oil-water mixture and gas, and the service life of the pressure gauge and the reliability and accuracy of measurement are improved. The invention can be used by connecting a plurality of testers in series, and monitors the underground stratum pressure, the oil pipe pressure and the underground temperature in real time.
Description
Technical Field
The invention relates to a permanent direct-reading type downhole temperature and pressure tester, and belongs to the technical field of downhole temperature and pressure monitoring.
Background
In the development and production process of oil and gas fields, underground parameter logging of a production well and a water injection well has important guiding significance for development of the oil and gas wells and formulation of production schemes. Therefore, the real-time monitoring of downhole pressure and temperature parameters is of great significance to the production and development of oil and gas fields.
Disclosure of Invention
The invention aims to provide a permanent direct-reading type underground temperature and pressure tester, which is formed by connecting a plurality of testers in series and is placed underground for a long time, so that underground stratum pressure, oil pipe pressure and underground temperature are monitored in real time, and an important reference is provided for development and production of oil and gas fields, thereby overcoming the defects of the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a permanent direct-reading type downhole temperature and pressure tester, which comprises a body, wherein the body is provided with a central channel; the outer circle of the body is provided with a shoulder, the end face of the shoulder is provided with an electric installation hole and a testing device installation hole, a circuit assembly is arranged in the electric installation hole, and a pressure testing assembly is arranged in the testing device installation hole; the electric installation hole is communicated with the test device installation hole through a wire hole; the body center channel is internally provided with a pressure transmission hole which is communicated with the test device mounting hole.
In the permanent direct-reading type downhole temperature and pressure tester, the circuit assembly comprises a circuit board, and the circuit board is fixed on the circuit mounting plate through a screw assembly; the input interface is in threaded connection with the orifice of the electric installation hole; the input lead and the output lead of the circuit board are respectively connected with the sealing plug.
In the permanent direct-reading type downhole temperature and pressure tester, cable joints are arranged at the orifice and the bottom of the electric installation hole, and sealing rings are sleeved on the two cable joints; the cable joint of the orifice of the electric installation hole is in threaded connection with the input interface at one end of the circuit installation plate; the cable joint at the bottom of the electric installation hole is in threaded connection with the body; sealing plugs at two ends of the circuit board are respectively positioned in the cable joints.
In the permanent direct-reading type downhole temperature and pressure tester, the pressure testing component comprises an oil pipe pressure testing part at one side of the pressure transmission hole and a stratum pressure testing part at one side of the mounting hole of the testing device; the oil pipe pressure testing part comprises an oil pipe pressure testing spiral pipe, the oil pipe pressure testing spiral pipe is connected with an oil pipe pressure testing spiral pipe seat, an oil pipe pressure gauge seat is arranged on the left side of the oil pipe pressure testing spiral pipe seat, and an oil pipe pressure gauge is arranged between the oil pipe pressure gauge seat and the oil pipe pressure testing spiral pipe seat; the stratum pressure testing part comprises a stratum pressure testing spiral pipe, the stratum pressure testing spiral pipe is connected with a stratum pressure testing spiral pipe seat, a stratum pressure meter seat is arranged on the right side of the stratum pressure testing spiral pipe seat, and a stratum pressure meter is arranged between the stratum pressure meter seat and the stratum pressure testing spiral pipe seat; the test device mounting hole is provided with a compression cap, and a group of stratum pressure sensing holes are formed in the compression cap.
In the permanent direct-reading type downhole temperature and pressure tester, the outer circles of the cable joint, the input interface, the stratum pressure testing screw pipe seat, the stratum pressure meter seat, the oil pipe pressure meter seat and the oil pipe pressure testing screw pipe seat are all provided with sealing grooves, and sealing rings are arranged in the sealing grooves.
Due to the adoption of the technical scheme, compared with the prior art, the pressure meter is used for testing the underground stratum pressure, the pressure meter is used for testing the underground oil pipe pressure, and the temperature sensor is used for testing the underground temperature. The spiral pipe is arranged at the front end of the pressure sensing surface of the pressure gauge, isolation liquid is filled in the spiral pipe, the pressure gauge is prevented from being in direct contact with external oil-water mixture and gas, and the working life of the pressure gauge and the reliability and accuracy of measurement are improved. The sealing ring materials used in the invention all use special fluororubber with low air permeability so as to ensure the air tightness of the tester. The invention can be connected with a plurality of testers in series, is placed underground for a long time, monitors underground stratum pressure and oil pipe pressure and underground temperature in real time, and provides important references for development and production of oil and gas fields.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a partial enlarged view at B in FIG. 2
FIG. 4 is a section D-D of FIG. 1;
fig. 5 is a partial enlarged view at C in fig. 4.
The marks in the drawings are: 1-cable joint, 2-seal ring, 3-electrical mounting hole, 4-test device mounting hole, 5-wire passing hole, 6-screw assembly, 7-circuit board, 8-circuit mounting plate, 9-body, 10-seal plug, 11-compression cap, 12-formation pressure sensing hole, 13-formation pressure test spiral pipe, 14-input interface, 15-formation pressure test spiral pipe seat, 16-formation pressure gauge, 17-formation pressure gauge seat, 18-tubing pressure gauge seat, 19-tubing pressure gauge, 20-tubing pressure test spiral pipe seat, 21-tubing pressure test spiral pipe, 22-pressure transmission hole, 23-pressure test assembly, 24-circuit assembly.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
The invention relates to a permanent direct-reading type downhole temperature and pressure tester, which is shown in figures 1, 2 and 4, and comprises a body 9, wherein the body 9 is provided with a central channel; the outer circle of the body 9 is provided with a shoulder, the end face of the shoulder is provided with an electric installation hole 3 and a testing device installation hole 4, a circuit component 24 is arranged in the electric installation hole 3, and a pressure testing component 23 is arranged in the testing device installation hole 4; the electric installation hole 3 is communicated with the test device installation hole 4 through a wire hole 5; the central channel of the body 9 is internally provided with a pressure transmission hole 22, and the pressure transmission hole 22 is communicated with the test device mounting hole 4.
As shown in fig. 3, the circuit assembly 24 includes a circuit board 7, and the circuit board 7 is fixed to the circuit mounting board 8 via the screw assembly 6; the input interface 14 is in threaded connection with the orifice of the electrical mounting hole 3; the input and output leads of the circuit board 7 are connected to the sealing plug 10, respectively. The orifice and the hole bottom of the electric installation hole 3 are respectively provided with a cable joint 1, and sealing rings 2 are respectively sleeved on the two cable joints 1; the cable joint 1 of the orifice of the electric installation hole 3 is in threaded connection with the input interface 14 at one end of the circuit installation plate 8; the cable joint 1 at the bottom of the electric installation hole 3 is in threaded connection with the body 9; sealing plugs 10 at both ends of the circuit board 7 are respectively located in the cable joint 1.
As shown in fig. 5, the pressure test assembly 23 includes a tubing pressure test section on the side of the pressure transfer hole 22 and a formation pressure test section on the side of the test device mounting hole 4; the oil pipe pressure testing part comprises an oil pipe pressure testing spiral pipe 21, the oil pipe pressure testing spiral pipe 21 is connected with an oil pipe pressure testing spiral pipe seat 20, an oil pipe pressure gauge seat 18 is arranged on the left side of the oil pipe pressure testing spiral pipe seat 20, and an oil pipe pressure gauge 19 is arranged between the oil pipe pressure gauge seat 18 and the oil pipe pressure testing spiral pipe seat 20; the stratum pressure testing part comprises a stratum pressure testing spiral pipe 13, the stratum pressure testing spiral pipe 13 is connected with a stratum pressure testing spiral pipe seat 15, a stratum pressure meter seat 17 is arranged on the right side of the stratum pressure testing spiral pipe seat 13, and a stratum pressure meter 16 is arranged between the stratum pressure meter seat 17 and the stratum pressure testing spiral pipe seat 15; the test device mounting hole 4 is provided with a pressing cap 11, and a group of stratum pressure sensing holes 12 are formed in the pressing cap 11.
As shown in fig. 2 and 4, the outer circles of the cable connector 1, the input interface 14, the formation pressure testing screw pipe seat 15, the formation pressure gauge seat 17, the oil pipe pressure gauge seat 18 and the oil pipe pressure testing screw pipe seat 20 are all provided with sealing grooves, and sealing rings 2 are arranged in the sealing grooves.
In practice, the body 9 has a central passage which serves both as a production passage and also allows for the smooth insertion of other test instruments. The end face of the body 9 has two mounting holes, one mounting hole is used for mounting the circuit assembly 24, and the other mounting hole is used for mounting the pressure testing assembly 23. The two mounting holes are communicated through the wire through hole 5, and the mounting wire passes through the wire through hole 5 to connect the circuit assembly 24 and the pressure testing assembly 23. The central channel of the body 9 is internally provided with a pressure transmission hole 22, and the pressure transmission hole 22 is communicated with the test device mounting hole 4 and is used for transmitting the pressure in the oil pipe.
The circuit board 7 is fixed on the circuit mounting board 8 through the screw assembly 6, and the circuit board 7 is provided with a temperature sensor for testing the downhole temperature. The circuit mounting plate 8 is provided with a sealing plug 10, one end of the sealing plug 10 is connected with the circuit board 7, and the other end is connected with a lower instrument cable. The circuit mounting plate 8 is provided with a sealing ring for sealing, so that external oil-water mixture and gas can be prevented from entering the electric mounting hole 3. The circuit mounting board 8 is mounted in the electrical mounting hole 3 of the body 9. An input lead is led out from one end of the circuit board 7 and is connected with a sealing plug 10 arranged at the orifice of the electric installation hole 3, so as to be used for connecting a superior cable. The cable joints 1 are arranged at the sealing plugs 10 at the two ends of the circuit board 7 and are used for fixing and sealing cables. The cable is used as a communication channel of the underground tester and supplies power for the underground tester. The cable joint 1 is provided with a sealing ring 2 for sealing, so that an external oil-water mixture and gas can be prevented from entering an inner hole of the cable joint 1.
The oil pipe pressure test spiral pipe 21 is welded on the oil pipe pressure test spiral pipe seat 20, the sealing ring 2 is installed on the oil pipe pressure test spiral pipe seat 20, and then the oil pipe pressure test spiral pipe seat 20 is installed in the test device installation hole 4. The oil pipe pressure gauge 19 with the sealing ring is arranged on the oil pipe pressure gauge seat 18, the sealing ring 2 is arranged on the oil pipe pressure gauge seat 18, and then the oil pipe pressure gauge seat 18 is arranged in the mounting hole 4 of the testing device. The formation manometer 16 with the sealing ring is arranged on the formation manometer seat 17, the sealing ring 2 is arranged on the formation manometer seat 17, and then the formation manometer seat 17 is arranged in the mounting hole 4 of the testing device. The formation pressure test spiral tube 13 is welded to the formation pressure test spiral tube seat 15, the sealing ring 2 is installed on the formation pressure test spiral tube seat 15, and then the formation pressure test spiral tube seat 15 is installed in the test device installation hole 4. The pressing cap 11 is arranged in the mounting hole 4 of the testing device, and a stratum pressure sensing hole 12 is formed in the pressing cap 11 and used for transmitting stratum pressure.
According to the invention, one path of pressure gauge is adopted to test underground stratum pressure, the other path of pressure gauge is adopted to test underground oil pipe pressure, and the temperature sensor is adopted to test underground temperature. The spiral pipe is arranged at the front end of the pressure sensing surface of the pressure gauge, isolation liquid is filled in the spiral pipe, the pressure gauge is prevented from being in direct contact with external oil-water mixture and gas, and the working life of the pressure gauge and the reliability and accuracy of measurement are improved. The sealing ring materials used in the invention all use special fluororubber with low air permeability so as to ensure the air tightness of the tester. The invention can be connected with a plurality of testers in series, is placed underground for a long time, monitors underground stratum pressure and oil pipe pressure and underground temperature in real time, and provides important references for development and production of oil and gas fields.
Claims (4)
1. The utility model provides a formula direct-reading formula is warm-pressing tester in pit forever, includes body (9), its characterized in that: the body (9) has a central passage; the outer circle of the body (9) is provided with a shoulder, the end face of the shoulder is provided with an electric installation hole (3) and a testing device installation hole (4), a circuit assembly (24) is arranged in the electric installation hole (3), and a pressure testing assembly (23) is arranged in the testing device installation hole (4); the electric installation hole (3) is communicated with the test device installation hole (4) through a wire hole (5); a pressure transmission hole (22) is arranged in the central channel of the body (9), and the pressure transmission hole (22) is communicated with the mounting hole (4) of the testing device; the pressure testing assembly (23) comprises an oil pipe pressure testing part at one side of the pressure transmission hole (22) and a stratum pressure testing part at one side of the testing device mounting hole (4); the oil pipe pressure testing part comprises an oil pipe pressure testing spiral pipe (21), the oil pipe pressure testing spiral pipe (21) is connected with an oil pipe pressure testing spiral pipe seat (20), an oil pipe pressure gauge seat (18) is arranged on the left side of the oil pipe pressure testing spiral pipe seat (20), and an oil pipe pressure gauge (19) is arranged between the oil pipe pressure gauge seat (18) and the oil pipe pressure testing spiral pipe seat (20); the stratum pressure testing part comprises a stratum pressure testing spiral pipe (13), the stratum pressure testing spiral pipe (13) is connected with a stratum pressure testing spiral pipe seat (15), a stratum pressure gauge seat (17) is arranged on the right side of the stratum pressure testing spiral pipe seat (15), and a stratum pressure gauge (16) is arranged between the stratum pressure gauge seat (17) and the stratum pressure testing spiral pipe seat (15); the test device mounting hole (4) is provided with a pressing cap (11), and a group of stratum pressure sensing holes (12) are formed in the pressing cap (11).
2. The permanent direct-reading downhole temperature and pressure tester according to claim 1, wherein: the circuit assembly (24) comprises a circuit board (7), and the circuit board (7) is fixed on the circuit mounting board (8) through the screw assembly (6); the input interface (14) is in threaded connection with the orifice of the electric installation hole (3); the input lead and the output lead of the circuit board (7) are respectively connected with the sealing plug (10).
3. The permanent direct-reading downhole temperature and pressure tester according to claim 1, wherein: the hole opening and the hole bottom of the electric installation hole (3) are respectively provided with a cable joint (1), and sealing rings (2) are respectively sleeved on the two cable joints (1); the cable connector (1) at the orifice of the electric installation hole (3) is in threaded connection with the input interface (14) at one end of the circuit installation plate (8); the cable joint (1) at the bottom of the electric installation hole (3) is in threaded connection with the body (9); sealing plugs (10) at two ends of the circuit board (7) are respectively positioned in the cable connector (1).
4. The permanent direct-reading downhole temperature and pressure tester according to claim 3, wherein: the cable connector (1), the input interface (14), the stratum pressure testing screw tube seat (15), the stratum pressure meter seat (17), the oil pipe pressure meter seat (18) and the outer circle of the oil pipe pressure testing screw tube seat (20) are all provided with sealing grooves, and sealing rings (2) are arranged in the sealing grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562278.4A CN114293981B (en) | 2021-12-20 | 2021-12-20 | Permanent direct-reading type downhole temperature and pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111562278.4A CN114293981B (en) | 2021-12-20 | 2021-12-20 | Permanent direct-reading type downhole temperature and pressure tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114293981A CN114293981A (en) | 2022-04-08 |
| CN114293981B true CN114293981B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111562278.4A Active CN114293981B (en) | 2021-12-20 | 2021-12-20 | Permanent direct-reading type downhole temperature and pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114293981B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230180A (en) * | 1978-11-13 | 1980-10-28 | Westbay Instruments Ltd. | Isolating packer units in geological and geophysical measuring casings |
| US4515225A (en) * | 1982-01-29 | 1985-05-07 | Smith International, Inc. | Mud energized electrical generating method and means |
| US4976142A (en) * | 1989-10-17 | 1990-12-11 | Baroid Technology, Inc. | Borehole pressure and temperature measurement system |
| US5163321A (en) * | 1989-10-17 | 1992-11-17 | Baroid Technology, Inc. | Borehole pressure and temperature measurement system |
| US5887657A (en) * | 1995-02-09 | 1999-03-30 | Baker Hughes Incorporated | Pressure test method for permanent downhole wells and apparatus therefore |
| CN202767969U (en) * | 2012-08-02 | 2013-03-06 | 中国石油天然气股份有限公司 | Stratum water injection monitor |
| CN205689189U (en) * | 2016-04-15 | 2016-11-16 | 贵州航天凯山石油仪器有限公司 | A kind of intelligent watering device |
| CN205823253U (en) * | 2016-07-11 | 2016-12-21 | 贵州天石能源科技有限公司 | Permanent setting type down-hole direct-reading flood pattern |
| CN206376847U (en) * | 2016-12-11 | 2017-08-04 | 付兴 | Envelope pressure integration segmentation hydraulic fracturing device under a kind of oil well |
| CN107304669A (en) * | 2016-04-15 | 2017-10-31 | 贵州航天凯山石油仪器有限公司 | The improved method and intelligent watering device of a kind of injection well downhole flow regulator |
| CN111594147A (en) * | 2019-02-21 | 2020-08-28 | 中国石油天然气股份有限公司 | Device and method for acquiring underground pressure and temperature in real time |
-
2021
- 2021-12-20 CN CN202111562278.4A patent/CN114293981B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230180A (en) * | 1978-11-13 | 1980-10-28 | Westbay Instruments Ltd. | Isolating packer units in geological and geophysical measuring casings |
| US4515225A (en) * | 1982-01-29 | 1985-05-07 | Smith International, Inc. | Mud energized electrical generating method and means |
| US4976142A (en) * | 1989-10-17 | 1990-12-11 | Baroid Technology, Inc. | Borehole pressure and temperature measurement system |
| US5163321A (en) * | 1989-10-17 | 1992-11-17 | Baroid Technology, Inc. | Borehole pressure and temperature measurement system |
| US5887657A (en) * | 1995-02-09 | 1999-03-30 | Baker Hughes Incorporated | Pressure test method for permanent downhole wells and apparatus therefore |
| CN202767969U (en) * | 2012-08-02 | 2013-03-06 | 中国石油天然气股份有限公司 | Stratum water injection monitor |
| CN205689189U (en) * | 2016-04-15 | 2016-11-16 | 贵州航天凯山石油仪器有限公司 | A kind of intelligent watering device |
| CN107304669A (en) * | 2016-04-15 | 2017-10-31 | 贵州航天凯山石油仪器有限公司 | The improved method and intelligent watering device of a kind of injection well downhole flow regulator |
| CN205823253U (en) * | 2016-07-11 | 2016-12-21 | 贵州天石能源科技有限公司 | Permanent setting type down-hole direct-reading flood pattern |
| CN206376847U (en) * | 2016-12-11 | 2017-08-04 | 付兴 | Envelope pressure integration segmentation hydraulic fracturing device under a kind of oil well |
| CN111594147A (en) * | 2019-02-21 | 2020-08-28 | 中国石油天然气股份有限公司 | Device and method for acquiring underground pressure and temperature in real time |
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| Publication number | Publication date |
|---|---|
| CN114293981A (en) | 2022-04-08 |
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