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On-line gas survey system for drilling mud

A drilling mud and mud technology, applied in the field of drilling mud online gas measurement system, can solve the problems of time lag, low minimum detection value, single content, etc.

Inactive Publication Date: 2003-05-07
GEOLOGIC LOGGING SHENGLI GASOLINEEUM ADMINISTRATION
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Problems solved by technology

For the detection of non-hydrocarbon gases, the content is single and the minimum detection value is too low, so it cannot accurately reflect the gas composition in the mud. To accurately detect non-hydrocarbon gases, it is necessary to use manual sampling methods and send them to the laboratory. Detection and analysis by various gas measuring instruments
Although the accuracy of indoor detection and analysis is high, it is inconvenient to take samples, save them, and send them, and there is too much time lag, making it difficult to synchronize with the drilling depth

Method used

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  • On-line gas survey system for drilling mud
  • On-line gas survey system for drilling mud
  • On-line gas survey system for drilling mud

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Embodiment Construction

[0025] Such as figure 1 , 2 As shown, the system consists of a mud drainage device, a mud online sampler, a mud online degasser, a sample gas processing unit, a chromatograph and an abnormal gas sampler. Its automatic control part is composed of data server (SERVER), controller interface, chromatography workstation, logging instrument workstation and HUB. The technical characteristics of each of the above components are shown in Figure 3-9 shown.

[0026] The process flow and automatic control process of the system are:

[0027] Such as figure 1 , 2 As shown, the mud to be tested passes through the drainage device and is sent to the online mud sampler under the condition of completely isolating the air; the online mud sampler realizes the automatic sampling of abnormal conditions and the mud at the set well depth; then the mud sample is sent to the degasser The degassed mud returns to the vibrating screen and returns to the mud pool; the degassed sample gas passes throu...

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Abstract

This invention relates to well drilling mud on-line gas test system composed of mud drainage device, mud on-line sampler, mud no-line degasser, sample gas process unit, gas chromatograph and gas abnormal sampler, connecting with each other orderly. It's automatic control part is made up of a data server, controller interface, chromatogram working station, well recording station and HUB, in which, the data server sends a control signal to the mud on-line degasser and liquid, gas samplers by the controller interface to realize automatic operation, automatic sampling and starting / stopping degasser, which can on-line detect hydrocarbon gas or detect many different un-hydrocarbon gas on-line.

Description

(1) Technical field [0001] The invention relates to the field of gas logging technology in the drilling process of petroleum geological exploration, in particular to an on-line gas logging system for drilling mud. (2) Background technology [0002] Petroleum geological exploration gas logging technology is to detect and analyze the gas components in the mud during the drilling process, so as to find the oil and gas show in the formation of the exploration well, and determine the depth and thickness of the oil and gas layer, so as to obtain the data of each exploration well. The true and accurate geological data. At present, the gas detection device used in the drilling site is mainly for online detection of hydrocarbon gas. For the detection of non-hydrocarbon gases, the content is single and the minimum detection value is too low, so it cannot accurately reflect the gas composition in the mud. To accurately detect non-hydrocarbon gases, it is necessary to use manual sampli...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N33/26G01N35/00
Inventor 张殿强李联玮张卫章江海刘志勤张立新
Owner GEOLOGIC LOGGING SHENGLI GASOLINEEUM ADMINISTRATION
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