CN107676075B - Perforation pressure gauge - Google Patents
Perforation pressure gauge Download PDFInfo
- Publication number
- CN107676075B CN107676075B CN201610623945.8A CN201610623945A CN107676075B CN 107676075 B CN107676075 B CN 107676075B CN 201610623945 A CN201610623945 A CN 201610623945A CN 107676075 B CN107676075 B CN 107676075B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- battery
- male plug
- threads
- pressure sensor
- Prior art date
- 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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- 230000001133 acceleration Effects 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 230000005284 excitation Effects 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000008161 low-grade oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- E21B47/017—Protecting measuring instruments
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a perforating pressure gauge which comprises a tail cone, a circuit board casing, a battery casing and a circuit board, wherein two ends of the circuit board casing are respectively connected with the tail cone and the battery casing, one end, close to the tail cone, of the circuit board casing is provided with a pressure sensor mounting seat for mounting a pressure sensor, one end, close to the battery casing, of the circuit board casing is provided with a circuit board framework for mounting the circuit board, one side of the circuit board is provided with a first acceleration sensor and a second acceleration sensor, a battery is arranged in the battery casing, one end of the battery is provided with a spring supporting seat, the other end of the battery is provided with a power male plug fixing seat, a power male plug is arranged on the power male plug fixing seat, and the power male plug is in matched connection with a socket arranged on the circuit board. The invention can effectively protect the internal circuit elements and the battery pack from severe vibration impact and oil stain erosion, is safe and reliable, and provides complete and accurate pressure monitoring data for perforation effect evaluation and stratum parameter analysis.
Description
Technical Field
The invention belongs to the technical field of oilfield testing engineering operation, and particularly relates to a perforation pressure gauge.
Background
Opening a reservoir through perforation operation and performing test operation are indispensable process links in the oil field exploration and development process, and monitoring the underground pressure is an important content of the test operation. In order to protect a reservoir (avoid secondary pollution to the reservoir because a perforation string is firstly pulled out of a well after perforation operation and then a test/production string is put into the well), reduce the operation cost, more and more oilfield exploration and development managers tend to combine the perforation string and the test/production string into a whole, and a combined process of perforation and one-time running of the test string is adopted; however, in the perforation and test combined process, the conventional electronic pressure gauge for underground pressure monitoring cannot bear severe vibration and instant high-pressure impact during perforation operation to be damaged, so that the test operation after perforation fails, and the underground pressure change condition during perforation required for evaluating the perforation effect cannot be obtained; some types of electronic pressure gauges cannot monitor pressure data at the moment of perforation even though they can withstand severe vibration and instantaneous high-pressure impact during perforation operation, because of design reasons, the data acquisition rate is not fast enough.
Because of the lack of an electronic pressure gauge suitable for perforation and test combined construction, the pressure change data during perforation is lost, and even the popularization and application of the process technology are affected.
Disclosure of Invention
Accordingly, it is a primary object of the present invention to provide a perforating pressure gauge.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
The embodiment of the invention provides a perforating pressure gauge which comprises a tail cone, a circuit board protective cylinder, a battery protective cylinder, a pressure sensor, a first acceleration sensor, a second acceleration sensor and a circuit board, wherein two ends of the circuit board protective cylinder are respectively connected with the tail cone and the battery protective cylinder, one end, close to the tail cone, of the circuit board protective cylinder is provided with a pressure sensor mounting seat for mounting the pressure sensor, one end, close to the battery protective cylinder, of the circuit board protective cylinder is provided with a circuit board framework for mounting the circuit board, one side of the circuit board is provided with the first acceleration sensor and the second acceleration sensor, a battery is arranged in the battery protective cylinder, one end of the battery is provided with a spring supporting seat, the other end of the battery is provided with a power male plug fixing seat, and a power male plug is arranged on the power male plug fixing seat and is connected with a socket arranged on the circuit board in a matched manner.
In the scheme, the pressure sensor mounting seat is internally connected with the pressure sensor stop block through threads; the tail cone is connected below the pressure sensor mounting seat through threads and is sealed through a sealing ring; the circuit board framework is connected to the upper end of the pressure sensor mounting seat through threads and is fixed and anti-loose through jackscrews.
In the scheme, the circuit board is fixed on the circuit framework through the screw, the spring pad, the flat pad and the nut.
In the scheme, the power supply female plug is connected to the upper end of the circuit framework through threads; the circuit casing is connected to the pressure sensor mounting seat through threads and is sealed through the combination of two groups of sealing rings; the battery protection cylinder is connected to the circuit protection cylinder through threads and is sealed through the combination of two groups of sealing rings.
In the scheme, the power male plug is connected to the power male plug fixing seat through threads; the battery fastening cap is arranged at the lower end of the power male plug fixing seat, and the battery fastening cap is communicated with the power male plug fixing seat through the clamp spring; the battery is connected with the spring supporting seat and is connected with the upper end of the power male plug fixing seat.
In the above scheme, a battery supporting seat for supporting is arranged on the battery.
In the above scheme, the first acceleration sensor and the second acceleration sensor are arranged perpendicular to each other.
Compared with the prior art, the invention has the beneficial effects that:
The perforating pressure gauge is mainly applied to pressure monitoring in the perforating combined construction process, has exquisite overall structural design, is suitable for strong vibration and high-pressure impact during perforation, is suitable for underground high-temperature and high-pressure environments, has high data acquisition rate, can effectively protect internal circuit elements and battery packs from severe vibration impact and oil stain erosion, ensures safe and reliable operation of the electronic pressure gauge in the perforating operation and subsequent testing processes, and provides complete and accurate pressure monitoring data for perforation effect evaluation and stratum parameter analysis. The invention has very good economic, technical value and application prospect in the perforation and test combined construction process in the oil field exploration and development process, and has great significance for more and more low-permeability low-grade oil reservoirs which are found and need to be evaluated in time for perforation effect and reservoir productivity.
Drawings
Fig. 1 is a schematic structural diagram of a perforating pressure gauge according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the invention provides a perforating pressure gauge, as shown in fig. 1, the perforating pressure gauge comprises a tail cone 1, a circuit board protective cylinder 5, a battery protective cylinder 17, a pressure sensor 3, a first acceleration sensor 19, a second acceleration sensor 20 and a circuit board 8, wherein two ends of the circuit board protective cylinder 5 are respectively connected with the tail cone 1 and the battery protective cylinder 17, one end, close to the tail cone 1, of the circuit board protective cylinder 5 is provided with a pressure sensor mounting seat 4 for mounting the pressure sensor 3, one end, close to the battery protective cylinder 17, of the circuit board protective cylinder 5 is provided with a circuit board framework 7 for mounting the circuit board 8, one side of the circuit board 8 is provided with the first acceleration sensor 19 and the second acceleration sensor 20, a battery 15 is arranged in the battery protective cylinder 17, one end of the battery 15 is provided with a spring supporting seat 16, the other end is provided with a power male plug fixing seat 13, the power male plug 11 is arranged on the power male plug fixing seat 13, and the power male plug 11 is in matched connection with a socket arranged on the circuit board 8.
The pressure sensor mounting seat 4 is internally connected with a pressure sensor stop block 2 through threads; the tail cone 1 is connected below the pressure sensor mounting seat 4 through threads and is sealed through a sealing ring; the circuit board framework 7 is connected to the upper end of the pressure sensor mounting seat 4 through threads and is fixed and loose-proof through the jackscrews 6.
The acceleration sensor 25 and the acceleration sensor 26 are welded and fixed on the circuit board 8.
The circuit board 8 is fixed on the circuit framework 7 through screws, spring pads, flat pads and nuts.
The power female plug 9 is connected to the upper end of the circuit framework 7 through threads; the circuit protection cylinder 5 is connected to the pressure sensor mounting seat 4 through threads and is sealed through the combination of two groups of sealing rings; the battery casing 17 is connected to the circuit casing 5 by threads and is sealed by a combination of two sets of sealing rings.
The power male plug 11 is connected to the power male plug fixing seat 13 through threads; the lower end of the power male plug fixing seat 13 is provided with a battery fastening cap 10, and the battery fastening cap 10 is communicated with the power male plug fixing seat 13 through a clamp spring 18; the battery 15 is connected with the spring support seat 16 and is connected with the upper end of the power male plug fixing seat 13.
The battery 15 is provided with a battery support seat 14 for supporting.
The power male plug fixing seat 13 is also provided with an indicator lamp 12 for displaying the state of the battery 15.
The battery 15 is a high-temperature high-energy lithium battery, and is stably output for a long time in a high-temperature 180 ℃ environment.
The battery fastening cap 10 firmly fixes the battery assembly on the circuit board framework 7 through threads, so that the battery assembly and the circuit board framework 7 are integrated, the shock resistance of the pressure gauge is greatly improved, and the reliability of power supply under severe environment is ensured.
The first acceleration sensor 19 and the second acceleration sensor 20 are arranged perpendicular to each other and are used for testing the longitudinal vibration condition and the transverse vibration condition of the instrument.
The pressure of the perforating pressure gauge provided by the invention can meet the monitoring of the pressure instantaneous change and the monitoring of the pressure recovery after perforation in the perforation test combined construction process, and provides accurate and complete use data for perforation effect judgment.
Before construction, according to the well condition, the working program of the pressure gauge, the excitation mode and the excitation condition of mode conversion are set according to the construction process and other data, the excitation mode is divided into time excitation and pressure excitation, the time excitation is to convert the working mode according to the set time, the pressure excitation is to compare the preset pressure value with the value acquired in real time, and when the real-time acquired pressure value is larger than the preset pressure value, the corresponding working mode is excited.
When the pressure value reaches the medium speed mode excitation condition, the pressure gauge enters a high-speed working mode, the excitation of the mode indicates that the most core step in perforation test combined construction is started, the sampling rate of the pressure gauge reaches 40000 groups/second in the high-speed mode, the pressure instantaneous change condition can be effectively monitored, the pressure gauge enters the medium speed mode together after the working of the mode is completed, and the recovery condition after the pressure change is recorded.
Taking out the pressure gauge from the well after the perforation test combined construction is completed, removing the battery protection cylinder 17, loosening the threads of the battery fastening cap 10, removing the battery 15, reading out the data in the perforation pressure gauge by using a computer and a special connecting wire, displaying and storing the data according to time, and submitting the data to a user for analysis and processing.
The perforation pressure gauge provided by the invention can realize high-speed acquisition and storage of pressure and vibration data while bearing severe vibration and pressure instant abrupt change generated during perforation, provides timely and effective data for perforation effect evaluation, determines whether fracturing operation is needed as monitoring data, and has great economic benefit. The instrument has the advantages of simple structure, convenient use, simple and convenient operation and great improvement on efficiency.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (2)
1. The perforating pressure gauge is characterized by comprising a tail cone, a circuit board protective cylinder, a battery protective cylinder, a pressure sensor, a first acceleration sensor, a second acceleration sensor and a circuit board, wherein the two ends of the circuit board protective cylinder are respectively connected with the tail cone and the battery protective cylinder; the pressure sensor mounting seat is internally connected with a pressure sensor stop block through threads; the tail cone is connected below the pressure sensor mounting seat through threads and is sealed through a sealing ring; the circuit board framework is connected to the upper end of the pressure sensor mounting seat through threads and is fixed and anti-loose through jackscrews; the first acceleration sensor and the second acceleration sensor are arranged perpendicular to each other, and are welded and fixed on the circuit board; the circuit board is fixed on the circuit board framework through screws, elastic pads, flat pads and nuts;
The power supply female plug is connected to the upper end of the circuit board framework through threads; the circuit board protective cylinder is connected to the pressure sensor mounting seat through threads and is sealed through the combination of two groups of sealing rings; the battery protection cylinder is connected to the circuit board protection cylinder through threads and is sealed through the combination of two groups of sealing rings; the power male plug is connected to the power male plug fixing seat through threads; the battery fastening cap is arranged at the lower end of the power male plug fixing seat, and the battery fastening cap is communicated with the power male plug fixing seat through the clamp spring; the battery is connected with the spring supporting seat and is connected with the upper end of the power male plug fixing seat.
2. The perforating pressure gauge as recited in claim 1 wherein: the battery is provided with a battery supporting seat for supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623945.8A CN107676075B (en) | 2016-08-02 | 2016-08-02 | Perforation pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610623945.8A CN107676075B (en) | 2016-08-02 | 2016-08-02 | Perforation pressure gauge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676075A CN107676075A (en) | 2018-02-09 |
| CN107676075B true CN107676075B (en) | 2024-04-30 |
Family
ID=61133944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610623945.8A Active CN107676075B (en) | 2016-08-02 | 2016-08-02 | Perforation pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676075B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997592A (en) * | 2020-07-31 | 2020-11-27 | 中国石油天然气集团有限公司 | Pressure gauge sensor dismounting device |
| CN113422147A (en) * | 2021-07-22 | 2021-09-21 | 无锡量子感知技术有限公司 | Instrument high temperature lithium cell nipple joint fixed knot in pit constructs |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201614926U (en) * | 2010-02-08 | 2010-10-27 | 中国海洋石油总公司 | Shock-absorbing device used for combined process of composite perforation and full-bore formation test |
| CN102635352A (en) * | 2012-04-18 | 2012-08-15 | 西安思坦仪器股份有限公司 | Perforation pressure meter as well as dispenser and fisher thereof |
| CN202417482U (en) * | 2011-12-15 | 2012-09-05 | 西安思坦仪器股份有限公司 | High-temperature high-pressure high-accuracy electronic manometer applied to oil and gas fields |
| US20150107852A1 (en) * | 2012-05-02 | 2015-04-23 | Spartek Systems Uk Limited | Downhole Device |
| CN105203255A (en) * | 2015-09-18 | 2015-12-30 | 华北水利水电大学 | Pressure sensor for underground measurement |
| CN205936587U (en) * | 2016-08-02 | 2017-02-08 | 西安洛科电子科技有限责任公司 | Perforation pressure gauge |
-
2016
- 2016-08-02 CN CN201610623945.8A patent/CN107676075B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201614926U (en) * | 2010-02-08 | 2010-10-27 | 中国海洋石油总公司 | Shock-absorbing device used for combined process of composite perforation and full-bore formation test |
| CN202417482U (en) * | 2011-12-15 | 2012-09-05 | 西安思坦仪器股份有限公司 | High-temperature high-pressure high-accuracy electronic manometer applied to oil and gas fields |
| CN102635352A (en) * | 2012-04-18 | 2012-08-15 | 西安思坦仪器股份有限公司 | Perforation pressure meter as well as dispenser and fisher thereof |
| US20150107852A1 (en) * | 2012-05-02 | 2015-04-23 | Spartek Systems Uk Limited | Downhole Device |
| CN105203255A (en) * | 2015-09-18 | 2015-12-30 | 华北水利水电大学 | Pressure sensor for underground measurement |
| CN205936587U (en) * | 2016-08-02 | 2017-02-08 | 西安洛科电子科技有限责任公司 | Perforation pressure gauge |
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| Publication number | Publication date |
|---|---|
| CN107676075A (en) | 2018-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 316, No. 118 Laodong Road, Lianhu District, Xi'an City, Shaanxi Province, 710082 Applicant after: Xi'an Luoke Electronic Technology Co.,Ltd. Applicant after: CHINA NATIONAL OFFSHORE OIL Corp. Applicant after: CNOOC (China) Limited,Zhanjiang Branch Address before: Room 316, No. 118 Laodong Road, Lianhu District, Xi'an City, Shaanxi Province, 710082 Applicant before: XI'AN LUOKE ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. Applicant before: CHINA NATIONAL OFFSHORE OIL Corp. Applicant before: CNOOC (China) Limited,Zhanjiang Branch |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zheng Yongjian Inventor after: Li Xixiao Inventor after: Zeng Tao Inventor after: Wang Weixuan Inventor before: Zheng Yongjian Inventor before: Li Xixiao Inventor before: Zeng Tao Inventor before: Wang Weixuan |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |