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Real-time formation fluid logging multi-parameter hydrocarbon reservoir comprehensive interpretation and evaluation method

A technology of formation fluids and evaluation methods, which is applied in earth-moving drilling, wellbore/well components, etc., can solve the problems of reducing the coincidence rate of oil and gas display interpretation, and achieve unique technical advantages, simple application and high coincidence rate.

Active Publication Date: 2014-03-05
CHINA NAT OFFSHORE OIL CORP +2
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Problems solved by technology

[0005] The real-time formation fluid logging multi-parameter oil and gas layer interpretation method is mainly based on the simple comprehensive judgment using multiple original mud logging data and their derived characteristic parameters. There are also regional differences in the interpretation and evaluation standards for reference, which leads to The coincidence rate of oil and gas show interpretation is reduced to a certain extent

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  • Real-time formation fluid logging multi-parameter hydrocarbon reservoir comprehensive interpretation and evaluation method
  • Real-time formation fluid logging multi-parameter hydrocarbon reservoir comprehensive interpretation and evaluation method

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Embodiment Construction

[0018] The implementation of the present invention is a real-time formation fluid logging multi-parameter comprehensive interpretation and evaluation method for oil and gas layers, and the specific steps are as follows:

[0019] 1) Collect and record various logging parameters through comprehensive mud logging equipment, real-time formation fluid mud logging equipment and mud logging engineers;

[0020] ① The integrated mud logging tool obtains drilling-time ROP (min / m), WOB (t), torque TORQ (kN m), drillability index Dc (d exp), depth H(m) and other parameters;

[0021] ②Using the real-time formation fluid logging tool to obtain the total hydrocarbon TG (ppm) reflecting the oiliness of the reservoir and the C of each hydrocarbon component 1 (ppm), C 2 (ppm), C 3 (ppm), iC 4 (ppm), nC 4 (ppm), iC 5 (ppm), nC 5 (ppm), nC 6 (ppm), nC 7 (ppm), nC 8 (ppm), C 6 h 6 (ppm), C 7 h 8 (ppm), C 7 h 14 (ppm) content, and gas data processing, including: import and export ga...

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Abstract

A real-time formation fluid logging multi-parameter hydrocarbon reservoir comprehensive interpretation and evaluation method comprises the following steps that each logging parameter is manually collected and recorded through a comprehensive logging instrument and a real-time formation fluid logging instrument; the obtained logging interpretation and evaluation parameters are optimized and classified to form a logging interpretation database; reservoir division is interpreted; an interpretation and evaluation standard is selected and interpretation and evaluation feature parameters are optimized according to area geological features, the reservoir types and logging interpretation parameters; the interpretation and evaluation standard and the interpretation and evaluation feature parameters are substituted into a comprehensive interpretation and evaluation model. The real-time formation fluid logging multi-parameter hydrocarbon reservoir comprehensive interpretation and evaluation method improves the logging oil gas comprehensive interpretation agreement rate, and can quantify the evaluation indexes and ranges.

Description

technical field [0001] The invention relates to the fields of geology and mud logging engineering services, in particular to the interpretation and evaluation of oil and gas layers in well site logging, which can be used for the interpretation and evaluation of oil and gas shows in mud logging of oil-bearing reservoirs, and can intuitively and quickly explain the properties of reservoir fluids. Background technique [0002] Mud logging is an important means of oil exploration and development, and real-time formation fluid logging is the most important wellbore oil and gas detection technology. The real-time formation fluid logging multi-parameter oil and gas layer comprehensive interpretation and evaluation method is an important new method for mud logging comprehensive interpretation of oil and gas layers. The application of this method can realize the rapid identification and comprehensive quantitative evaluation of reservoir fluid types, and provide a basis for subsequent ...

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Application Information

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IPC IPC(8): E21B49/00
Inventor 夏庆龙尚锁贵谭忠健吴立伟刘坤毛敏袁胜斌胡云黄小刚吴昊晟马金鑫于喜王建勇荆文明吴建华
Owner CHINA NAT OFFSHORE OIL CORP
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