CN206707703U - Formation pore pressure measuring while drilling device - Google Patents
Formation pore pressure measuring while drilling device Download PDFInfo
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- CN206707703U CN206707703U CN201720341169.2U CN201720341169U CN206707703U CN 206707703 U CN206707703 U CN 206707703U CN 201720341169 U CN201720341169 U CN 201720341169U CN 206707703 U CN206707703 U CN 206707703U
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- pressure
- hydraulic oil
- chip microcomputer
- oil pipeline
- drilling
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Abstract
The utility model discloses a kind of formation pore pressure measuring while drilling device, including housing, pressure acquisition device and data acquisition and transmission device；Pressure acquisition device includes filter screen, pressure probe, hydraulic oil pipeline and pressure sensor；Hydraulic oil pipeline and pressure sensor are arranged on enclosure interior；Pressure probe is arranged on the lateral wall of housing；Filter screen is sealingly mounted at the outer face of pressure probe；Pressure probe is connected by hydraulic oil pipeline with pressure sensor；Pressure sensor will measure pressure transmission to data acquisition and transmission device；Data acquisition and transmission device is arranged on enclosure interior, including single-chip microcomputer, A/D conversion chip and impulse generator；The pressure data that pressure sensor measures is transmitted to single-chip microcomputer through A/D conversion chips；Work of the single-chip microcomputer according to its pressure data control impulse generator received.The real-time measuring while drilling strata pressure of formation pore pressure measuring while drilling device energy, technical support is provided for optimization drilling technology, raising drilling efficiency.
Description
Technical field
The utility model belongs to petroleum exploration domain, more particularly to a kind of formation pore pressure measuring while drilling device.
Background technology
Carry out the research with the pressure of the drill power measuring technology, strata pressure can be obtained exactly, be well logging engineering, drilling engineering
Important basic data is provided with reservoir geology engineering；In terms of well logging engineering, strata pressure data is control drilling fluid density
Fundamental basis.Strata pressure and its distribution situation have only been grasped, reasonable employment and in time adjustment drilling fluid density, can just have been filled
Divide exposure oil/gas show situation, reach and find oil-gas Layer, liberation oil-gas Layer, the purpose of reservoir protec-tion.In terms of drilling engineering,
Strata pressure is related to high speed, safe and inexpensive drilling and well completion, or even is related to the success or failure of wellbore construction.It is only accurate
Grasp strata pressure parameter and could correctly select drilling fluid density, realize casing program optimization and preferred well control device in ground；Pass through
Annular pressure can be adjusted in real time by obtaining strata pressure, adjusted mud density in time, controlled the equivalent circulating density in shaft bottom.But
Downhole data is mostly obtained in test process, there is not yet drilling process is with the test device bored to formation pore pressure.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of formation pore pressure measuring while drilling device, can be real
When measuring while drilling strata pressure, for optimization drilling technology, improve drilling efficiency technical support is provided.
Therefore, the technical solution of the utility model is as follows：
A kind of formation pore pressure measuring while drilling device, including housing, pressure acquisition device and data acquisition and transmission device；
The housing is arranged in drilling tool close to the position of drill bit；
The pressure acquisition device includes filter screen, pressure probe, hydraulic oil pipeline and pressure sensor；The hydraulic oil pipe
Road and pressure sensor are arranged on enclosure interior；The pressure probe is arranged on the lateral wall of the housing；The filter screen is close
Envelope is installed in the outer face of the pressure probe；The pressure probe is connected by hydraulic oil pipeline with the pressure sensor；
The pressure probe is used to detect outside strata pressure, and the strata pressure is transferred to by the hydraulic oil in hydraulic oil pipeline
At the pressure sensor；The pressure sensor measures the pressure of hydraulic oil in hydraulic oil pipeline, and the pressure data is passed
Transport to data acquisition and transmission device；
The data acquisition and transmission device includes single-chip microcomputer, A/D conversion chips and impulse generator；Wherein, the monolithic
Machine and A/D conversion chips are arranged in housing；The impulse generator is arranged in drilling tool on annular space, passes through its for controlling
Mud flow rate；The pressure sensor converts chip with A/D successively and single-chip microcomputer is connected；The pressure that the pressure sensor measures
Data are transmitted to the single-chip microcomputer after A/D converts chip format transformation；The single-chip microcomputer is connected with the impulse generator, according to
According to the work of its pressure data control impulse generator received.
The pressure of formation pore is calculated by discharging the pressure/flow data of mud, decoding in the detection means on ground,
Realize strata pressure with bore, in real time measurement.
Further, the single-chip microcomputer is also associated with memory module, the pressure data received for storing the single-chip microcomputer.
Further, the hydraulic oil pipeline is also associated with hydraulic pump, balanced valve；The hydraulic pump is used for the hydraulic oil
Supplement hydraulic oil in pipeline, the balanced valve are used to adjust the flow in hydraulic oil pipeline.
Further, the filter screen is sealingly mounted on the outer face of pressure probe by seal gasket.
The formation pore pressure measuring while drilling device can just open stratum when formation testing pressure, obtain it is most direct
Original formation pressure；Using the short interruption measurement stratum pressure of drilling process, the testing time is short, and it is seldom to take rig time；
When can solve the problem that high angle hole, horizontal well, extended reach well test, the problem of instrument tripping in difficulty；Compared with conventional art, this dress
The true pressure situation on stratum can preferably be reflected by putting the formation pressure data of measurement, can be optimized drilling technology accordingly, be improved and bore
Well efficiency.
Brief description of the drawings
Fig. 1 is the structure of the data acquisition and transmission device of formation pore pressure measuring while drilling device provided by the utility model
Schematic diagram；
Fig. 2 is the structural representation of formation pore pressure measuring while drilling device provided by the utility model.
Embodiment
The technical solution of the utility model is described in detail below in conjunction with drawings and examples.
As shown in Fig. 2 a kind of formation pore pressure measuring while drilling device, including housing 1, pressure acquisition device 2 and data
Collecting transmitter 3；Housing 1 is arranged in drilling tool close to the position of drill bit；Pressure acquisition device 2 includes filter screen 201, pressure is visited
First 202, hydraulic oil pipeline 203 and pressure sensor 204；Hydraulic oil pipeline 203 and pressure sensor 204 are arranged in housing 1
Portion；Pressure probe 202 is arranged on the lateral wall of housing 1；Filter screen 201 is sealingly mounted at the outer face of pressure probe 202, specifically
It is to seal to install by seal gasket 207, pressure probe 202 is connected by hydraulic oil pipeline 203 with pressure sensor 204；
Pressure probe 202 is used to detect outside strata pressure, and the strata pressure is passed through into the hydraulic oil transmission in hydraulic oil pipeline 203
To pressure sensor 204；Pressure sensor 204 measures the pressure of hydraulic oil in hydraulic oil pipeline 203, and by the pressure data
Transmit to data acquisition and transmission device 3；
Data acquisition and transmission device 3 includes single-chip microcomputer 301, A/D conversion chips 302 and impulse generator 303；Wherein, it is single
Piece machine 301 and A/D conversion chips 302 are arranged in housing 1；Impulse generator 303 is arranged in drilling tool on annular space, for controlling
Pass through its mud flow rate；Pressure sensor 204 converts chip 302 with A/D successively and single-chip microcomputer 301 is connected；Pressure sensor
204 pressure datas measured are transmitted to single-chip microcomputer 301 after A/D converts the format transformation of chip 302；Single-chip microcomputer 301 is sent out with pulse
Raw device 303 is connected, the work according to its pressure data control impulse generator received.Lithium battery 306 is that single-chip microcomputer 301 supplies
Electricity, power module 305 is connected with therebetween, for being the applicable electricity of single-chip microcomputer 301 by the voltage conversion of lithium battery 306
Pressure.
The pressure of formation pore is calculated by discharging the pressure/flow data of mud, decoding in the detection means on ground,
Realize strata pressure with bore, in real time measurement.
As one embodiment of the present utility model, single-chip microcomputer 301 is also associated with memory module 304, for storing monolithic
The pressure data that machine 301 receives.
In order to facilitate debugging, hydraulic oil pipeline 203 is also associated with hydraulic pump 205, balanced valve 206；Hydraulic pump 205 be used for
Supplement hydraulic oil in hydraulic oil pipeline 203, balanced valve 206 are used to adjust the flow in hydraulic oil pipeline 203, are debugging.
In use, mud/drilling fluid applies pressure to hydraulic oil pipeline by entering pressure probe 202 after filter screen 201
Hydraulic oil in 203, the pressure transmission that hydraulic oil is born to pressure sensor 204；Pressure sensor 204 measures hydraulic oil
Pressure, and by the pressure data through A/D convert the format transformation of chip 302 after transmit to single-chip microcomputer 301；Single-chip microcomputer 301 and arteries and veins
Rush generator 303 to be connected, according to the work of its pressure data control impulse generator 303 received, adjust and sent out through extra pulse
The flow of mud/drilling fluid of raw device 303；Mud/the drilling fluid, which returns, drains into well head, well head dependence test instrument test pressure,
Calculating deduces strata pressure.
Claims (4)
- A kind of 1. formation pore pressure measuring while drilling device, it is characterised in that：Including housing (1), pressure acquisition device (2) sum According to collecting transmitter (3)；The housing (1) is arranged in drilling tool close to the position of drill bit；The pressure acquisition device (2) includes filter screen (201), pressure probe (202), hydraulic oil pipeline (203) and pressure sensing Device (204)；It is internal that the hydraulic oil pipeline (203) and pressure sensor (204) are arranged on housing (1)；The pressure probe (202) on the lateral wall of the housing (1)；The filter screen (201) is sealingly mounted at the outer of the pressure probe (202) End face；The pressure probe (202) is connected by hydraulic oil pipeline (203) with the pressure sensor (204)；The pressure is visited Head (202) is used to detect outside strata pressure, and the strata pressure is transferred to by the hydraulic oil in hydraulic oil pipeline (203) Pressure sensor (204) place；The pressure sensor (204) measures the pressure of hydraulic oil pipeline (203) interior hydraulic oil, and The pressure data is transmitted to data acquisition and transmission device (3)；The data acquisition and transmission device (3) includes single-chip microcomputer (301), A/D conversion chips (302) and impulse generator (303)； Wherein, the single-chip microcomputer (301) and A/D conversion chips (302) are arranged in housing (1)；Impulse generator (303) installation In drilling tool on annular space, pass through its mud flow rate for controlling；The pressure sensor (204) converts chip with A/D successively (302) it is connected with single-chip microcomputer (301)；The pressure data that the pressure sensor (204) measures converts chip (302) through A/D and turned Transmitted after changing form to the single-chip microcomputer (301)；The single-chip microcomputer (301) is connected with the impulse generator (303), according to it The work of the pressure data control impulse generator received.
- 2. formation pore pressure measuring while drilling device as claimed in claim 1, it is characterised in that：The single-chip microcomputer (301) also connects Memory module (304) is connected to, the pressure data received for storing the single-chip microcomputer (301).
- 3. formation pore pressure measuring while drilling device as claimed in claim 1, it is characterised in that：The hydraulic oil pipeline (203) It is also associated with hydraulic pump (205), balanced valve (206)；The hydraulic pump (205) is used to mend into the hydraulic oil pipeline (203) Topping up presses oil, and the balanced valve (206) is used to adjust the flow in hydraulic oil pipeline (203).
- 4. formation pore pressure measuring while drilling device as claimed in claim 1, it is characterised in that：The filter screen (201) is by close Potting pad (207) is sealingly mounted on the outer face of pressure probe (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341169.2U CN206707703U (en) | 2017-04-01 | 2017-04-01 | Formation pore pressure measuring while drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341169.2U CN206707703U (en) | 2017-04-01 | 2017-04-01 | Formation pore pressure measuring while drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206707703U true CN206707703U (en) | 2017-12-05 |
Family
ID=60468409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720341169.2U Expired - Fee Related CN206707703U (en) | 2017-04-01 | 2017-04-01 | Formation pore pressure measuring while drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206707703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216940A (en) * | 2021-04-27 | 2021-08-06 | 中国平煤神马能源化工集团有限责任公司 | Multi-point rock stratum pore pressure testing method and system |
-
2017
- 2017-04-01 CN CN201720341169.2U patent/CN206707703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216940A (en) * | 2021-04-27 | 2021-08-06 | 中国平煤神马能源化工集团有限责任公司 | Multi-point rock stratum pore pressure testing method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20200401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |