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Quantitative evaluation method and device for solid asphalt of dense dolomite reservoir stratum

A technology for quantitative evaluation and asphalt content, which is applied in earthwork drilling, geophysical surveying, instruments, etc.

Active Publication Date: 2020-10-23
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

Although the effect is good, it needs some advanced logging methods, such as nuclear magnetic resonance logging, array acoustic logging, etc. In practical applications, such methods are often subject to relatively large restrictions-many exploration wells have not completed these logging methods. well project

Method used

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  • Quantitative evaluation method and device for solid asphalt of dense dolomite reservoir stratum
  • Quantitative evaluation method and device for solid asphalt of dense dolomite reservoir stratum
  • Quantitative evaluation method and device for solid asphalt of dense dolomite reservoir stratum

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Embodiment 1

[0214] This embodiment firstly provides a kind of quantitative evaluation device of solid asphalt in deep and ultra-deep tight dolomite reservoirs, such as figure 1 As shown, the device includes:

[0215] Screening module; used for screening the target layer, the mud content in the target layer is less than 2%;

[0216] The multi-mineral volume inversion model building module is used to establish a multi-mineral volume inversion model. The matrix in the model is: dolomite, calcite, solid bitumen, quartz, and the pores are: formation water and natural gas;

[0217] The logging response equation building module of the multi-mineral inversion volume model is used to establish the logging response equation according to the multi-mineral inversion volume model;

[0218] The objective function and constraint condition building module are used to obtain the vertical content distribution of solid bitumen in a single well.

[0219] This embodiment has passed a quantitative evaluation...

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Abstract

The invention provides a quantitative evaluation method and device for solid asphalt of a dense dolomite reservoir stratum. The method comprises the steps that XRD data of reservoir stratum mineral composition are detected, a target stratum is determined, and the shale content in the target stratum is lower than 2%; dolomite, calcite, solid asphalt and quartz are used as matrixes, formation waterand natural gas are used as pores, and a logging response equation of a multi-mineral inversion volume model is established; and according to the logging response equation, an undisturbed stratum resistivity curve, the flushing zone resistivity logging curve, the compensated neutron logging curve, the density logging curve and the compensated sonic logging curve of the multi-mineral inversion volume model, an objective function and constraint conditions are established, and the longitudinal content distribution of the single-well solid asphalt is obtained. The invention further provides a quantitative evaluation device for the solid asphalt of the deep and ultra-deep compact dolomite reservoir stratum. By means of the evaluation method and device, accurate quantitative evaluation of the solid asphalt of the reservoir stratum can be achieved.

Description

technical field [0001] The invention relates to a quantitative evaluation method and device, in particular to a quantitative evaluation method and device for solid asphalt in deep and ultra-deep tight dolomite reservoirs, belonging to the technical field of petroleum exploitation. [0002] The technical solution of the present invention is supported by the following funds / projects: [0003] (1) National Key Research and Development Program "Deep Earth Resources Exploration and Exploitation" Special Project - "Ultra-deep and Mesoproterozoic Oil and Gas Resources Formation and Maintenance Mechanism and Distribution Prediction" -06 Project "Ultra-Deep and Mesoproterozoic Oil and Gas Accumulation Enrichment Law and Exploration Direction"-Project No.: 2017YFC0603106. [0004] (2) National Natural Science Foundation of China Youth Science Fund Project "Research on Fractal Quantitative Identification Method of Tight Sandstone Micro-fractures" (41802148). [0005] (3) Independent re...

Claims

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Application Information

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IPC IPC(8): E21B49/00G01V11/00G06Q50/02G06F17/15G06F17/11
CPCE21B49/00G01V11/00G06Q50/02G06F17/15G06F17/11
Inventor 宋泽章柳广弟姜福杰姜仁赵珺仪阿比德·阿不拉臧建鹏李强刘祥柏
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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