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Apparatus for real-time online identification of strata lithology and identification method thereof

A technology of formation lithology and identification device, which is applied in the field of real-time and online detection of formation lithology when drilling, can solve the problems of real-time, online and continuous identification of formation lithology that has not been discovered, and cannot meet the real-time online detection and analysis of lithology. , to achieve the effect of simple structure, easy detection and convenient operation

Inactive Publication Date: 2012-11-28
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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Problems solved by technology

[0008] In view of the above reality, the existing methods cannot satisfy the real-time online detection and analysis of lithology in the process of petroleum mud logging. Therefore, it is urgent to research and develop a device for real-time online recognition of lithology in the petroleum mud logging industry. A device for real-time, online and continuous identification of formation lithology

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  • Apparatus for real-time online identification of strata lithology and identification method thereof
  • Apparatus for real-time online identification of strata lithology and identification method thereof

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention will be further described.

[0024] like figure 1 As shown, the real-time online recognition device for formation lithology consists of a pulse generator (1), a pulse laser (2), a timing controller (3), a mid-hole reflector (4), a total reflection mirror (5), and a focusing mirror (6 ), reaction chamber (7), flow valve (8), drilling fluid pool (9), optical receiver (10), optical fiber (11), spectrometer (12), ICCD (13) and computer (14). The pulse generator (1) is respectively connected to the external trigger terminal of the pulse laser (2) and the input terminal of the timing controller (3); the center-hole reflector (4), The total reflection mirror (5) and the focusing mirror (6), the receiving end of the optical receiver (10) is placed in the coaxial position of the reflection direction of the middle hole mirror (4), and the output end of the optical receiver (10) passes through the optical fiber...

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Abstract

The invention discloses an apparatus for real-time online identification of strata lithology and identification method thereof, which relates to real-time online monitoring of lithology during the process of oil logging. The apparatus consists of a pulse generator (1), a pulsed laser (2), a sequence controller (3), a mesopore reflector (4), a holophote (5), a focusing mirror (6), a reaction chamber (7), a flow valve (8), a drilling liquid pool (9), a photoelectric receiver (10), optical fibers (11), a spectrometer (12), ICCD (13) and a computer (14). Cutting grains of drilling strata remainedin drilling fluid are excitated to high-energy state by using focusing laser beam of high energy. During the transition of cutting grains from the excited state to the ground state, the components ofcutting grains radiate their respective spectrums. By analyzing the characteristic spectrums, the elements and their corresponding concentrations of the samples are obtained and the lithology thereofare determined. The apparatus has the characteristics of simple structure, reliable method and easy operation, thus is suitable for real-time online detection of strata lithology during the process of oil logging.

Description

technical field [0001] The invention relates to oil mud logging, which is mainly used for real-time and on-line detection of formation rock lithology encountered in the oil mud logging process. Background technique [0002] Comprehensive geological logging is an important means to cooperate with drilling to explore oil and gas. It is a method to observe, detect, judge and analyze underground rock properties and oil and gas conditions by using various data and parameters along with the drilling process. It mainly includes geological logging, gas logging, and engineering logging, which can be further divided into cuttings logging, core logging, drilling-time logging, fluorescence logging, engineering parameter logging, all hydrocarbon components and non-hydrocarbon Gas logging, etc. [0003] Debris logging is the most direct primary data for understanding subsurface lithology and oiliness in field geological logging. Through cuttings logging, the lithology characteristics of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/63G01N15/06
Inventor 林兆祥陶国强佘明军刘林美吴金泉孙奉娄
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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