CN201496014U - Downhole safety monitoring system for underbalance drilling compound logging - Google Patents
Downhole safety monitoring system for underbalance drilling compound logging Download PDFInfo
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- CN201496014U CN201496014U CN2009200785868U CN200920078586U CN201496014U CN 201496014 U CN201496014 U CN 201496014U CN 2009200785868 U CN2009200785868 U CN 2009200785868U CN 200920078586 U CN200920078586 U CN 200920078586U CN 201496014 U CN201496014 U CN 201496014U
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Abstract
The utility model discloses the technical field of petroleum and natural gas logging, in particular to a downhole safety monitoring system for underbalance drilling compound logging. Through selecting optimally compound logging data acquisition equipment applicable to the underbalance drilling, adjusting a data recording method, and changing a data recording position and interpretation method, the downhole safety monitoring system can propose a full set of logging method for the underbalance drilling logging, makes the underbalance drilling logging have the capability of underbalance drilling safety monitoring, and utilizes a safety monitoring software to monitor and analyze the pressure, temperature and medium parameter returned from a well-hole. Finally, a set of new drilling trouble safety monitoring system of the underbalance drilling compound logging is formed, which widens the application area of compound logging and ensures the reasonable, effective and safe performance of underbalance drilling .
Description
Technical field
The utility model relates to a kind of under balance pressure drilling compound logging underground safety monitoring system.Be to utilize liquid phase (nature, inflation) the under balance pressure drilling special comprehensive logging system of transforming to monitor the new method of down-hole complex accident such as multiple under balance pressure drilling down-hole pressure fluctuation, gas phase (air) drilling well down-hole blasting and the water outlet of gas drilling stratum.Belong to oil and Natural Gas Logging technical field.
Background technology
Under balance pressure drilling (UBD) is the modern drilling technology that develops rapidly the beginning of the nineties at the end of the eighties.Under balance pressure drilling is the boring method that wellbore pressure is lower than formation pore fluid pressure, and when drilling well ran into permeable formation, formation fluid constantly flowed into pit shaft and is recycled to ground, needs effectively to control artificially.
The core of under balance pressure drilling technology is exactly the research and the control of bottom pressure.Wherein, can bottom pressure control be the key of under balance pressure drilling success, design and keep a desirable under-balanced state can have influence on whole exploration and development effect, and can be related to safely, creep into fast.Yet under the under balance pressure drilling condition, the increase of drilling equipment and improvement, make the quantity and the mounting condition of well logging equipment needed thereby that variation take place, equipment performance is had higher requirement, increased the difficulty that bottom pressure, annular space medium are monitored, some technology of conventional well logging and the requirement that method can not satisfy well logging work, need improve and innovate, find out logging method and technology that a cover is fit to the under balance pressure drilling condition, develop the software systems that to carry out real-time analysis under balance pressure drilling.
Summary of the invention
By to the inflation under balance pressure drilling, the research of under balance pressure drilling such as air drilling and controlled pressure drilling borehole problems is set up a cover collection under balance pressure drilling real-time data acquisition, analysis, monitoring in real time and is the under balance pressure drilling compound logging underground safety monitoring system of one.This system is applicable in liquid phase (nature and inflation) and gas phase (air) under balance pressure drilling process and monitors and control, can be used for the drilling process analysis of straight well, directional well and horizontal well under balance pressure drilling.System possesses the ability that safety monitoring is carried out in multiple under balance pressure drillings such as inflation under balance pressure drilling, controlled pressure drilling well.
The technical scheme that its technical problem that solves the utility model adopts is: by improving conventional comprehensive logging instrument gas probe and injected system detecting instrument, adjust well head logging equipment position, obtain a kind of all kinds of concentration of gas and the pressure of inlet, new methods of temperature returned out of enrolling.Monitoring and recording parameters send to Industrial Personal Computer (IPC) by supporting sensor of compound logging and the sensor unit combination that is applicable under balance pressure drilling after transforming, analog signal conversion is become data signal, then data signal is sent to the host computer that the software systems that comprise real-time monitoring modular, prediction of formation pressure module, real-time analysis module and forecast analysis module are installed.Software systems to pressure, temperature and the gas concentration data obtained monitor, record and computational analysis, judge whether the down-hole pressure fluctuation exceeds standard, whether fuel gas content reaches fires the limit, if not exceeding standard then continue, the down-hole pressure fluctuation creeps into, on the contrary, then point out, report to the police, then all kinds of parameters of comprehensive logging instrument transmission are analyzed and calculated, by adjust choke valve or install additional the downhole choke device to down-hole pressure fluctuation control.
The beneficial effects of the utility model are, by proposing to transform conventional compound logging device, method, utilize under balance pressure drilling compound logging technical monitoring downhole safety accident, solve down-hole complex accident such as the fluctuation of under balance pressure drilling down-hole pressure is unusual.Can reduce construction cost, guarantee construction safety.
Description of drawings
Fig. 1 is the sensor installation site schematic diagram of the utility model under balance pressure drilling compound logging underground safety monitoring system.Among the figure: 1. well head, 2. gas-liquid separator, 3. slurry tank, 4. slush pump, 5. supercharger, 6. compressor unit, 7. outlet density, temperature, flow transmitter group, 8. well depth survey sensor groups, 9. cover pressure sensor, 10. gas pressure, temperature, flow transmitter group, 11. pump pressure sensors, 12. Access-Point Density, temperature, flow transmitter group, 13. hydrogen sulfide sensors.
Fig. 2 is the utility model under balance pressure drilling compound logging underground safety monitoring system plan.
The specific embodiment
In Fig. 1, well depth measuring transducer group 8 is installed in well head 1 position measures parameters such as well depth, for providing well depth, computational analysiss such as down-hole pressure, temperature distribute; Well head 1 position installation sleeve pressure sensor 9 is measured the casing pressure value; Installation outlet density, temperature, flow transmitter group 7 are measured density, temperature and the flow parameter that returns out fluid between well head 1 position and the gas-liquid separator 2; Pressure, temperature, the flow parameter of the injecting gas of gas pressure, temperature, the 10 measurement inflation under balance pressure drillings of flow transmitter group and gas drilling are installed between well head 1 position and the supercharger 5; Pump pressure sensor 11 is installed between well head 1 position and the slush pump 4 is measured the pump pressure parameter; Access-Point Density, temperature, flow and the volume parameter of Access-Point Density, temperature, flow transmitter group 12 measurement fluids are installed between slurry tank 3 and the slush pump 4; Hydrogen sulfide sensor 13 is measured the hydrogen sulfide volume parameter.
In Fig. 2, Sensor section: the preferred sensor that is fit to is used for the conversion of physical quantity to the signal of telecommunication.Signal hop: analog signal is transmitted by different processing with pulse signal.Signals collecting part: analog electrical signal is transformed to data signal by the USBA/D transition card.Industrial Personal Computer (IPC) part: be used to install USBA/D transition card etc., and data are sent to host computer.Power unit: select suitable uninterrupted power source to provide continuous power supply to instrument and miscellaneous equipment.
Claims (3)
1. under balance pressure drilling compound logging underground safety monitoring system, it is characterized in that: system hardware comprises outlet density, temperature, flow transmitter group (7), well depth survey sensor groups (8), cover pressure sensor (9), gas pressure, temperature, flow transmitter group (10), pump pressure sensor (11), Access-Point Density, temperature, flow transmitter group (12), hydrogen sulfide sensor (13); The system prediction analysis software comprises real-time monitoring modular, prediction of formation pressure module, real-time analysis module and forecast analysis module; The sensor is connected to Industrial Personal Computer (IPC), and Industrial Personal Computer (IPC) is connected to the host computer that is equipped with forecast analysis software.
2. safety monitoring system according to claim 1 is characterized in that: outlet density, temperature, flow transmitter group (7) are installed between well head (1) and the gas-liquid separator (2); Well depth survey sensor groups (8) and cover pressure sensor (9) are installed in well head (1) and locate; Gas pressure, temperature, flow transmitter group (10) are installed between well head (1) and the supercharger (5); Pump pressure sensor (11) is installed between well head (1) and the slush pump (4); Access-Point Density, temperature, flow transmitter group (12) are installed between slurry tank (3) and the slush pump (4); Hydrogen sulfide sensor (13) is installed in gas-liquid separator (2) and locates.
3. safety monitoring system according to claim 1 is characterized in that: the data that the combination of the supporting sensor unit of comprehensive logging instrument can be gathered gas probe and injection/return out system's detecting instrument send to the host computer that the software systems that comprise real-time monitoring modular, prediction of formation pressure module, real-time analysis module and forecast analysis module are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200785868U CN201496014U (en) | 2009-01-08 | 2009-01-08 | Downhole safety monitoring system for underbalance drilling compound logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200785868U CN201496014U (en) | 2009-01-08 | 2009-01-08 | Downhole safety monitoring system for underbalance drilling compound logging |
Publications (1)
| Publication Number | Publication Date |
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| CN201496014U true CN201496014U (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200785868U Expired - Fee Related CN201496014U (en) | 2009-01-08 | 2009-01-08 | Downhole safety monitoring system for underbalance drilling compound logging |
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| CN (1) | CN201496014U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541726A (en) * | 2013-11-07 | 2014-01-29 | 中国人民解放军重庆通信学院 | Well depth measuring device |
| CN104453843A (en) * | 2014-11-14 | 2015-03-25 | 中国海洋石油总公司 | While-drilling monitoring method and device for formation pressure |
| CN104763407A (en) * | 2015-02-08 | 2015-07-08 | 东北石油大学 | Under-balanced drilling rock-breaking simulation experimental device and method |
| CN105675071A (en) * | 2014-11-21 | 2016-06-15 | 中石化胜利石油工程有限公司钻井工艺研究院 | Quantitative detection system for quantities of returned rock debris during while-drilling of non-invasive gas drilling |
| CN106444563A (en) * | 2016-12-12 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司 | Safety guarantee system applicable to gas drilling |
| CN113216946A (en) * | 2021-05-11 | 2021-08-06 | 西南石油大学 | Well wall caving and block falling detection method based on rock debris and element logging data |
| CN115062986A (en) * | 2022-06-24 | 2022-09-16 | 西南石油大学 | Well site fire-extinguishing emergency rescue risk evaluation method based on multi-source data fusion |
| CN115062986B (en) * | 2022-06-24 | 2024-04-26 | 西南石油大学 | Well site fire-extinguishing emergency rescue risk evaluation method based on multi-source data fusion |
-
2009
- 2009-01-08 CN CN2009200785868U patent/CN201496014U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541726A (en) * | 2013-11-07 | 2014-01-29 | 中国人民解放军重庆通信学院 | Well depth measuring device |
| CN104453843A (en) * | 2014-11-14 | 2015-03-25 | 中国海洋石油总公司 | While-drilling monitoring method and device for formation pressure |
| CN104453843B (en) * | 2014-11-14 | 2018-02-06 | 中国海洋石油总公司 | The monitoring while drilling method and its monitoring device of strata pressure |
| CN105675071A (en) * | 2014-11-21 | 2016-06-15 | 中石化胜利石油工程有限公司钻井工艺研究院 | Quantitative detection system for quantities of returned rock debris during while-drilling of non-invasive gas drilling |
| CN104763407A (en) * | 2015-02-08 | 2015-07-08 | 东北石油大学 | Under-balanced drilling rock-breaking simulation experimental device and method |
| CN106444563A (en) * | 2016-12-12 | 2017-02-22 | 中国石油集团川庆钻探工程有限公司 | Safety guarantee system applicable to gas drilling |
| CN113216946A (en) * | 2021-05-11 | 2021-08-06 | 西南石油大学 | Well wall caving and block falling detection method based on rock debris and element logging data |
| CN113216946B (en) * | 2021-05-11 | 2022-06-24 | 西南石油大学 | Well wall caving and block falling detection method based on rock debris and element logging data |
| CN115062986A (en) * | 2022-06-24 | 2022-09-16 | 西南石油大学 | Well site fire-extinguishing emergency rescue risk evaluation method based on multi-source data fusion |
| CN115062986B (en) * | 2022-06-24 | 2024-04-26 | 西南石油大学 | Well site fire-extinguishing emergency rescue risk evaluation method based on multi-source data fusion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20120108 |