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Portable infrared logging instrument for drilling well

A kind of mud logging instrument, infrared technology, applied in the direction of wellbore/well components, earthwork drilling, production fluid, etc., can solve the problems of high cost, complex structure, unsatisfactory, etc., and achieve long service life and short response time , The effect of short detection and analysis cycle

Inactive Publication Date: 2007-11-21
GEOLOGIC LOGGING SHENGLI GASOLINEEUM ADMINISTRATION
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  • Application Information

AI Technical Summary

Problems solved by technology

Its working mechanism and core technology, some still use FID, some use gas sensor or heat conduction sensor, and some structure is still relatively complicated, and the cost is high
Although they have their own strengths and weaknesses, they are not satisfactory.

Method used

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  • Portable infrared logging instrument for drilling well
  • Portable infrared logging instrument for drilling well
  • Portable infrared logging instrument for drilling well

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Embodiment Construction

[0011] An embodiment is illustrated in conjunction with the accompanying drawings:

[0012] As shown in Fig. 1, the present invention includes three parts: a sample gas path, a sample gas detection chamber, and signal data acquisition and processing. The sample gas path includes a degasser, a sample gas pump, and a pressure stabilizing valve, and the degasser, sample gas pump, and pressure stabilizing valve are connected in sequence. The sample gas detection chamber includes a light detection chamber and a heavy hydrocarbon detection chamber, the outlet of the light hydrocarbon detection chamber is connected to the inlet of the heavy hydrocarbon detection chamber, and then is emptied through the gas outlet of the heavy hydrocarbon detection chamber. As shown in Figures 1 and 3, the signal data acquisition and processing part includes a signal data acquisition unit, a data processing unit, a data conversion unit, a data display unit and an acquisition computer. The signal data...

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Abstract

The invention discloses a drill portable infrared measuring apparatus, belonging to the technique which uses infrared light to measure and analyze the gas components. Wherein, the degasifier, the sample gas pump and the pressure stabilizer are connected in series; the inlet and outlet of lighter hydrocarbon detecting chamber and heavy hydrocarbon detecting chamber are connected in series while the outlet of heavy hydrocarbon detecting chamber discharges the gas; the signal data collection and processing unit comprises a signal data collection unit, a data processing unit, a data transformation unit, a data display unit and a collection computer; the signal data collection unit comprises two infrared detectors and four sensors; the data processing unit comprises a lighter hydrocarbon detecting module, a heavy hydrocarbon detecting module, a impulse calculation module and a analogue module. The invention replaces the hydrocarbon fire ion gas analysis technique with the infrared detecting technique, with simple structure, lower cost, and the realization of detecting lighter hydrocarbon, heavy hydrocarbon and full hydrocarbon. It is a online gas detecting device used in oil production.

Description

(1) Technical field [0001] The invention relates to using optical means, that is, using infrared light to test or analyze sample gas extracted online from drilling mud, and belongs to the technical field of drilling gas logging, in particular to a portable infrared mud logging instrument for drilling. (2) Background technology [0002] Petroleum geological drilling online gas logging technology is to detect and analyze the sample gas released from the circulating mud in the wellbore in real time during the drilling process. If there are hydrocarbon gas components, it means that there are oil and gas shows. At present, only a small number of oil exploration wells have applied comprehensive logging equipment to obtain true and accurate geological data of exploration wells. The working mechanism and core technology of comprehensive mud logging tools at home and abroad are basically hydrogen flame ionization gas analysis (FID). Its advantages are high detection accuracy and les...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/08E21B43/34
Inventor 翟慎德张卫李联玮王印周发举章江海东培亮王福海王伟东王伟凯
Owner GEOLOGIC LOGGING SHENGLI GASOLINEEUM ADMINISTRATION
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