Comprehensive Interpretation and Evaluation Method of Real-time Formation Fluid Mud Logging Multi-parameter Reservoir

A technology of formation fluid and evaluation method, which is applied in the direction of earthwork drilling and production, wellbore/well components, etc., can solve the problems such as the reduction of coincidence rate of oil and gas show interpretation, and achieve the effect of unique technical advantages, wide application range and high coincidence rate

Active Publication Date: 2016-08-31
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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  • Comprehensive Interpretation and Evaluation Method of Real-time Formation Fluid Mud Logging Multi-parameter Reservoir
  • Comprehensive Interpretation and Evaluation Method of Real-time Formation Fluid Mud Logging Multi-parameter Reservoir
  • Comprehensive Interpretation and Evaluation Method of Real-time Formation Fluid Mud Logging Multi-parameter Reservoir

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[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 comprehensive interpretation and evaluation method for oil and gas layers, the specific steps are as follows: through the steps of comprehensive mud logging, real-time formation fluid logging and manual acquisition and recording of various mud logging parameters; The steps of selecting and classifying the well interpretation and evaluation parameters and forming the mud logging interpretation database; the steps of interpreting the division of reservoirs; selecting the interpretation evaluation criteria and optimizing the interpretation and evaluation characteristic parameters according to the regional geological characteristics, reservoir types and mud logging interpretation parameters Step; the step of substituting into the comprehensive explanation evaluation model. The invention improves the coincidence rate of mud logging comprehensive interpretation of oil and gas, and can quantify the evaluation index and scope of the comprehensive interpretation and evaluation method of oil and gas layers.

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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Patent Type & Authority Patents(China)
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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