CN1500965A - Monitor system for coring operation - Google Patents
Monitor system for coring operation Download PDFInfo
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- CN1500965A CN1500965A CNA021501882A CN02150188A CN1500965A CN 1500965 A CN1500965 A CN 1500965A CN A021501882 A CNA021501882 A CN A021501882A CN 02150188 A CN02150188 A CN 02150188A CN 1500965 A CN1500965 A CN 1500965A
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- core
- signal
- displacement
- monitoring
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Abstract
The present invention relates to the drilling observation in coring operation during petroleum well drilling, and the real-time coring monitoring system consists of real-time core taking monitoring system, well signal processing and transmitting system, ground signal receiving and displaying system. The real-time core taking monitoring system and the well signal processing and transmitting system are assembled inside the coring tool, and the ground signal receiving and displaying system receives and displays the signal from well bottom and can display core displacement and other well bottom information based on the practical coring requirement. The present invention has wide application range, can monitor the whole coring process effectively to avoid core blocking and core wear, raise coring precision and reduce the labor strength of coring worker.
Description
Technical field
The present invention relates to the monitoring while drilling in the oil drilling coring process.
Background technology
At present, the working condition that core drill both domestic and external advances is mainly to judge by core-taking technology personnel experience, advances not have in the process instrument and instrument to monitor at core drill.And the whole nation and my the most of oil field of office entered later development, and stratum washing is serious, and the core structural strength is low, and the easier core that causes caves in, and causes stifled core, core grinding.This situation reduces and gets the core index in case generation will cause the wearing and tearing core.
Summary of the invention
The object of the present invention is to provide and a kind ofly carry out core monitoring while drilling system, fundamentally stop the generation of stifled core, core grinding phenomenon getting the core process.
The present invention goes into a real-time monitoring system by core, the shaft bottom signal is handled transmission system, the ground signal receiving and displaying system is formed, core is gone into a real-time monitoring system, the shaft bottom signal is handled transmission system and is assemblied in the coring tool, core is gone into after a real-time monitoring system monitors the unit length of a core, the microprocessor that signal is handled transmission system by the shaft bottom signal is handled, and produce one or one group of signal, then this signal is transferred to the ground signal receiving and displaying system, the microprocessor of this system is handled signal, and the demonstration core is gone into shaft bottom data such as a displacement.
When coring, adopt the present invention to get the core monitoring while drilling and compare with existing core-taking technology that to have the core of the getting scope of application wide, can both implement effective monitoring, fundamentally stopped the advantage of the generation of stifled core, core grinding phenomenon the whole core process of getting.Can improve and get the core index, reduce the core-taking technology personnel labor intensity.
The specific embodiment
The present invention includes: core is gone into a real-time monitoring system, the shaft bottom signal is handled transmission system, ground signal receiving and displaying system.Core is gone into a real-time monitoring system, the shaft bottom signal is handled transmission system and is assemblied in the coring tool, the data signal that the ground signal receiving and displaying system receives on ground and transmit up in the demonstration shaft bottom.Can realize monitoring displacement by adopting one of following three kinds of devices: (1) ultrasonic emitting, receive integrated apparatus into a core in the noncontact mode; (2) ultrasonic wave single-shot, single receipts system; (3) acoustic sounding system.
Ultrasonic emitting, reception integrated apparatus are monitored the displacement into a core, be to connect one in the upper end of coring tool inner core ultrasonic emitting and receiving system are installed, emitter is at unit interval emission one or one group of ultrasonic wave, ultrasonic wave can reflect when touching into tin core top, receiving system receives the ultrasonic wave that reflects, handle by microprocessor analysis, produce the displacement signal that unit length is gone into a core.
Ultrasonic wave single-shot, single receipts system be with go on the core top contact surface ultrasonic transmission device is installed, it monitors displacement into a core by three rollers, when roller displacement unit length, just can produce one or one group of ultrasonic signal, after receiving system receives signal, handle by microprocessor analysis, produce the displacement signal that unit length is gone into a core.
The displacement that acoustic detection device is monitored into a core is to utilize a sonic generator and an acoustic receiver, its sound wave emissions frequency is greater than 12KHz, utilization transmits and receives the time difference between the sound wave, handles by microprocessor analysis, produces the displacement signal that unit length is gone into a core.
Core is gone into a real-time monitoring system and can also be utilized the way of contact to monitor displacement into a core, with go into a cover core displacement monitor is installed on the core top contact surface, it is handled transmission system by wire cable with the signal that is fixed on coring tool inner core upper end and links to each other.The core displacement monitor is monitored displacement into a core by three rollers, and wherein two rollers are fixed, and one connects with spring or a roller is fixed, and two rollers connect with spring guarantees that three rollers can be close to the coring tool inner tube wall.Core enters the coring tool inner core, and it is up to drive the core displacement monitor, drives the roller displacement, when roller displacement unit length, just produce one or one group of signal, after receiving system receives signal, handle by microprocessor analysis, produce the displacement signal that unit length is gone into a core.
Behind the unit's of monitoring core length, the shaft bottom signal is handled transmission system can send transmission one or one group of signal earthward.Its transmitting device can adopt (1) positive pressure wave transmitting device device; (2) negative pressure wave transmitting device; (3) electromagnetic transmission device.
The positive pressure wave device is in coring tool inner core upper end a positive pulse generator that has the valve driver to be housed, and moves downward in pipe nipple by the restriction drilling fluid and produces positive pressure pulse.Like this, the positive pressure pulse by drilling fluid transmits a series of binary signals.
The negative pressure wave device is that driver is housed in coring tool inner core upper end, opening and closing and produce underbalance pulse by microprocessor control driver.Like this, transmit a series of binary signals by the negative pressure pulse of drilling fluid.
It is after a core length is gone into by the unit of monitoring that electromagnetic wave shaft bottom signal is handled transmission system, by power supply control microprocessor, produces the electromagnetic wave of certain amplitude and phase place, transmits a series of binary signals earthward by electromagnetic wave.
According to the actual core construction requirement of getting, the signal transmission system of getting core monitoring while drilling system can transmit the shaft bottom data signal earthward, and the ground signal receiving and displaying system receives signal, handles through microprocessor analysis, and the demonstration core is gone into shaft bottom data such as a displacement.
Claims (8)
1. get core monitoring while drilling system for one kind, it is characterized in that: this is got core monitoring while drilling system and goes into a real-time monitoring system by core, the shaft bottom signal is handled transmission system, the ground signal receiving and displaying system is formed, core is gone into a real-time monitoring system, the shaft bottom signal is handled transmission system and is assemblied in the coring tool, core is gone into after a real-time monitoring system monitors the unit length of a core, the microprocessor that signal is handled transmission system by the shaft bottom signal is handled, and produce one or one group of signal, then this signal is transferred to the ground signal receiving and displaying system, the microprocessor of this system is handled signal, and the demonstration core is gone into shaft bottom data such as a displacement.
2. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: by emission, receive the ultrasonic unit integral structure and monitor displacement into a core in the noncontact mode, in the upper end of coring tool inner core ultrasonic emitting and receiving system are installed, emitter is at unit interval emission one or one group of ultrasonic wave, ultrasonic wave reflects when touching into tin core top, receiving system receives the ultrasonic wave that reflects, handle by microprocessor analysis in installing, produce the displacement signal that unit length is gone into a core.
3. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: monitor displacement in the noncontact mode into a core by ultrasonic wave single-shot, single receipts system, with go on the core top contact surface ultrasonic transmission device is installed, it monitors displacement into a core by three rollers, when roller displacement unit length, just can produce one or one group of ultrasonic signal, after receiving system receives signal, handle by microprocessor analysis in installing, produce the displacement signal that unit length is gone into a core.
4. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: monitor displacement in the noncontact mode into a core by the acoustic sounding method, its sound wave emissions frequency is greater than 12KHZ, going into a sonic generator and an acoustic receiver are installed on the core top contact surface, utilization transmits and receives the time difference between the sound wave, handle by microprocessor analysis, produce the displacement signal that unit length is gone into a core.
5. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: this monitoring system is monitored displacement into a core with the way of contact, going into a cover core displacement monitor is installed on the core top contact surface, it is handled transmission system by wire cable with the signal that is fixed on coring tool inner core upper end and links to each other, the core displacement monitor is monitored displacement into a core by three rollers, wherein two rollers are fixed, one connects with spring or a roller is fixed, core enters the coring tool inner core, it is up to drive the core displacement monitor, drive the roller displacement, when roller displacement unit length, just can produce one or one group of signal, after receiving system receives signal, handle by microprocessor analysis, produce the displacement signal that unit length is gone into a core.
6. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: behind the unit's of monitoring core length, the shaft bottom signal is handled transmission system and is sent its transmission means employing positive pressure wave method when transmitting signal earthward, in coring tool inner core upper end a positive pulse generator that has the valve driver is housed, in pipe nipple, move downward and produce positive pressure pulse by the restriction drilling fluid, transmit a series of binary signals by the positive pressure pulse of drilling fluid.
7. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: behind the unit's of monitoring core length, the shaft bottom signal is handled transmission system and is sent its transmission means employing negative pressure wave method when transmitting signal earthward, in coring tool inner core upper end driver is housed, by the opening and close and produce underbalance pulse of microprocessor control driver, can transmit a series of binary signals by the negative pressure pulse of drilling fluid.
8. the core monitoring while drilling system of getting according to claim 1, it is characterized in that: behind the unit's of monitoring core length, the shaft bottom signal is handled transmission system and is sent its transmission means employing electromagnetic wave method when transmitting signal earthward, the shaft bottom signal is handled transmission system after a core length is gone into by the unit of monitoring, pass through power supply control microprocessor, produce the electromagnetic wave of certain amplitude and phase place, transmit a series of binary signals earthward by electromagnetic wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021501882A CN1500965A (en) | 2002-11-15 | 2002-11-15 | Monitor system for coring operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021501882A CN1500965A (en) | 2002-11-15 | 2002-11-15 | Monitor system for coring operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1500965A true CN1500965A (en) | 2004-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021501882A Pending CN1500965A (en) | 2002-11-15 | 2002-11-15 | Monitor system for coring operation |
Country Status (1)
| Country | Link |
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| CN (1) | CN1500965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932239B (en) * | 2005-09-12 | 2012-05-30 | 普拉德研究及开发股份有限公司 | Downhole data transmission apparatus and methods |
| CN108106529A (en) * | 2017-11-18 | 2018-06-01 | 中国石油天然气集团公司 | A kind of memory type measurement while drilling rock core length device and system |
-
2002
- 2002-11-15 CN CNA021501882A patent/CN1500965A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932239B (en) * | 2005-09-12 | 2012-05-30 | 普拉德研究及开发股份有限公司 | Downhole data transmission apparatus and methods |
| CN108106529A (en) * | 2017-11-18 | 2018-06-01 | 中国石油天然气集团公司 | A kind of memory type measurement while drilling rock core length device and system |
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| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |