CN101476488A - Air drilling compound logging monitoring down-hole blasting system - Google Patents
Air drilling compound logging monitoring down-hole blasting system Download PDFInfo
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- CN101476488A CN101476488A CNA2009100580824A CN200910058082A CN101476488A CN 101476488 A CN101476488 A CN 101476488A CN A2009100580824 A CNA2009100580824 A CN A2009100580824A CN 200910058082 A CN200910058082 A CN 200910058082A CN 101476488 A CN101476488 A CN 101476488A
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- hole blasting
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Abstract
The invention relates to an air drilling integrated with a comprehensive logging instrument downhole burning explosion monitoring system. A conventional comprehensive logging instrument is reconstructed to have the capability of air drilling safety monitoring. The parameters such as the flow rate and pressure of various well head gas probe collection ring return gas are optimized and selected; the comprehensive logging instrument is used to process and store the collected gas data; and the air drilling downhole burning explosion safety monitoring software is used to calculate and analyze the intercepted gas data, thereby reaching the aim of carrying out the effective and reasonable monitoring and control of air drilling.
Description
Affiliated technical field
The present invention relates to a kind of air drilling compound logging monitoring down-hole blasting system, the down-hole blasting situation is carried out real-time tracking and warning, belong to oil and Natural Gas Logging technical field by the monitoring of software of developing that fires.
Background technology
Air drilling is to utilize air to replace drilling fluid as circulating the drillng operation that medium carries out, and air has that density is low, viscosity is low, to the pit shaft low characteristics of exerting pressure.The advantage of air drilling has: the drilling efficiency height, effectively protect oil-gas Layer, prevent leakage and stick bit freezing.Air drilling is one of current most economical, effective boring method.The air drilling device is simple, and general down hole problem is less.Yet, air drilling can run into the down-hole catch fire the blast this difficult problem.The blast incidence is low though the down-hole catches fire, and influence is big, and consequence is serious.In general, catch fire blast back down-hole drill collar and drill bit are caused fishing to be difficult to carry out by scorification, and the result is forced to the well that plug-back has been drilled to, sidetracking thereafter.How to solve the down-hole blasting problem, the main cause that need fire by analysis just, and adopt the well logging monitoring strengthened in the air drilling process, inject the generation that methods such as apolar substance are avoided the down-hole blasting accident.
At present, known conventional compound logging---also claiming drill returns log abroad, is by collection, analyzing and processing real-time parameter and late parameter, and then reaches discovery oil-gas Layer, evaluation oil-gas Layer and real-time drilling monitoring purposes.But, conventional compound logging technology is applied to mud drilling mostly, and in the air drilling well logging, also there is not a monitoring technology of the complete complicated down-hole accidents such as analyzing and processing down-hole blasting of a cover, cause air drilling to bore and meet atomic little oil-gas Layer, dare not continue to adopt air drilling, use mud drilling instead, reduce oil field development efficient greatly.Continue to use conventional well logging technology and method can't the safe construction of air drilling to be escort, this just need transform conventional well logging equipment and technology, develop a cover and be applicable to the down-hole blasting monitoring of software of this compound logging equipment, by both in conjunction with an integrated cover air drilling compound logging monitoring down-hole blasting system.This cover system not only possesses conventional compound logging monitoring function, and ability of its control air drilling down-hole accident be conventional comprehensive logging system can't realize.
Summary of the invention
Bore to meet the deficiency of down-hole complex accident abilities such as monitoring down-hole blasting under the atomic little oil-gas Layer situation at air drilling in order to overcome conventional comprehensive logging instrument, the invention provides a kind of air drilling compound logging monitoring down-hole blasting system, whether this technology can not only monitor the air drilling down-hole and fire, and can calculate the scope of firing and hydrocarbon gas concentration and surpass the content that should add apolar substance after the scope that fires.
The present invention solves this technical problem the technical scheme that is adopted: gas probe and injected system detecting instrument are installed at the well head place, well head are returned out pressure (upright pressure, casing pressure), the temperature of all kinds of gas concentrations and inlet and monitor automatically and record.Monitoring and recording parameters send to by supporting sensor of compound logging and sensor unit combination supporting monitoring are installed, the terminal computer of analysis software, the oxygen of computer to obtaining, carbon dioxide, carbon monoxide and hydrocarbon gas concentration data are monitored in real time, record and computational analysis, judging whether down-hole fuel gas content reaches fires the limit, do not creep into if reach to fire the limit then continue, on the contrary, then prompting, report to the police, then all kinds of parameters of comprehensive logging instrument transmission are analyzed and calculated, by adding methods such as apolar substance flammable limit is narrowed down, annular space gas is not in the flammable range, thereby reaches fire prevention, the purpose of fire extinguishing.
The invention has the beneficial effects as follows that by increase carbon monoxide probe, carbon dioxide probe and oxygen probe on conventional compound logging Equipment Foundations, an integrated cover air drilling down-hole blasting monitoring system solves down-hole complex accident such as air drilling down-hole blasting.It can reduce construction cost, guarantees construction safety.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the application principle figure of a kind of air drilling compound logging monitoring down-hole blasting system of the present invention.
Fig. 2 is carbon monoxide, the carbon dioxide content surveillance map of air drilling compound logging monitoring down-hole blasting system embodiment.
Fig. 3 is oxygen, the total hydrocarbon content surveillance map of air drilling compound logging down-hole blasting system embodiment.
The specific embodiment
Each hardware device interface case of system initialization, host computer starts back computer data acquiring software by conventional compound logging equipment and carbon monoxide probe, carbon dioxide probe and oxygen probe acquisition interface are gathered required various air drilling project data and gas survey data, the ring empty flow field analysis module will carry out computational analysis to ring empty flow field to gas survey data and the project data that collects, for the monitoring of down-hole blasting provides important pressure and temperature data, the down-hole blasting analysis module is surveyed data to the gas that collects and is carried out the computational analysis down-hole blasting limit, if entering, mine gas concentration fires limit range, then the apolar substance injection rate that is fit to by design reduces down-hole combustion-supporting gas concentration, reaches the fire extinguishing effect.
Fig. 2, embodiment illustrated in fig. 3 in, according to finding to returning out gas surveillance map picture, the total hydrocarbon value at first raises, reach and fire the limit 2.7% and then reduce rapidly, oxygen is reduced to 13.7% subsequently, and carbon dioxide rises to 1.5% by 0.2%, carbon monoxide rises to 0.05% by 0, continue about two minutes, monitored data input Computerized analysis system judges that the down-hole fires.
Claims (3)
1. an air drilling is characterized in that in conjunction with compound logging down-hole blasting monitoring system: increase carbon dioxide probe, carbon monoxide probe and oxygen probe on conventional compound logging Equipment Foundations; Terminal computer configuration down-hole blasting monitoring of software, software systems comprise data acquisition module, mine gas concentration monitor module, down-hole blasting analysis module and ring empty flow field analysis module.
2. down-hole blasting monitoring system according to claim 1 is characterized in that: carbon monoxide probe, carbon dioxide probe and oxygen probe are installed in well head and sediment outflow pipeline place.
3. down-hole blasting monitoring system according to claim 1 is characterized in that: the data that gas probe and injection/return out system's detecting instrument is gathered in the combination of the supporting Industrial Personal Computer (IPC) of comprehensive logging instrument send to the terminal computer that the software systems that comprise data acquisition module, mine gas concentration monitor module, down-hole blasting analysis module and ring empty flow field analysis module are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100580824A CN101476488A (en) | 2009-01-08 | 2009-01-08 | Air drilling compound logging monitoring down-hole blasting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100580824A CN101476488A (en) | 2009-01-08 | 2009-01-08 | Air drilling compound logging monitoring down-hole blasting system |
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| Publication Number | Publication Date |
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| CN101476488A true CN101476488A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100580824A Pending CN101476488A (en) | 2009-01-08 | 2009-01-08 | Air drilling compound logging monitoring down-hole blasting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323413A (en) * | 2013-06-04 | 2013-09-25 | 中国石油化工股份有限公司 | Spectrum continuous gas logging device and method |
| CN103823483A (en) * | 2014-01-14 | 2014-05-28 | 中国航天科技集团公司第五研究院第五一三研究所 | Well head automation liquid injection apparatus |
| CN109184678A (en) * | 2018-10-09 | 2019-01-11 | 西南石油大学 | A kind of down-hole blasting boundary rapid measurement device and method |
-
2009
- 2009-01-08 CN CNA2009100580824A patent/CN101476488A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323413A (en) * | 2013-06-04 | 2013-09-25 | 中国石油化工股份有限公司 | Spectrum continuous gas logging device and method |
| CN103323413B (en) * | 2013-06-04 | 2016-09-28 | 中国石油化工股份有限公司 | Spectrum continuous gas detection logging device and method |
| CN103823483A (en) * | 2014-01-14 | 2014-05-28 | 中国航天科技集团公司第五研究院第五一三研究所 | Well head automation liquid injection apparatus |
| CN109184678A (en) * | 2018-10-09 | 2019-01-11 | 西南石油大学 | A kind of down-hole blasting boundary rapid measurement device and method |
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Open date: 20090708 |