Quantitative evaluation method for fracture development strength of single well of tight sandstone reservoir

A technology for tight sandstone reservoirs and fracture development, applied in the field of well logging, can solve problems such as failure to truly reflect the development of fractures in a single well, large fracture errors, and inability to make quantitative evaluations, achieving rapid quantitative evaluation and high accuracy. Effect

Active Publication Date: 2019-10-11
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

However, the core and imaging logging fracture strength evaluation technology is only suitable for evaluating the fracture development strength of a single well with cored or imaging logging data, and the existing probability model in the conventional logging fracture strength e

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  • Quantitative evaluation method for fracture development strength of single well of tight sandstone reservoir
  • Quantitative evaluation method for fracture development strength of single well of tight sandstone reservoir
  • Quantitative evaluation method for fracture development strength of single well of tight sandstone reservoir

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[0036] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0037] Such as figure 1 As shown, the method for quantitatively evaluating the fracture development strength of a single well in tight sandstone reservoir proposed by the present invention comprises the following steps:

[0038] 1) According to the core and conventional logging data, determine the characteristic parameters of single well fracture identification of the reservoir (the reservoir is a tight sand...

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Abstract

The invention provides a quantitative evaluation method for fracture development strength of a single well of a tight sandstone reservoir, and the method is characterized by comprising the following steps of 1) determining a fracture identification characteristic parameter of the single well of the reservoir; 2) determining a fracture comprehensive indication parameter of the single well to be evaluated according to the fracture identification characteristic parameter of the single well of the reservoir, and quantitatively identifying the fracture layer of the single well to be evaluated according to the fracture comprehensive indication parameter of the single well; and 3) determining a fracture development strength index of the single well to be evaluated, and quantitatively evaluating the fracture development strength of the single well to be evaluated according to the fracture development strength index of the single well. The quantitative evaluation method provided by the invention can accurately identify the fracture development interval of the single well to be tested by using the conventional logging data, and can quickly quantitatively evaluate the fracture development strength of the single well to be tested at the same time with high accuracy.

Description

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Claims

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Application Information

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Owner CHINA PETROLEUM & CHEM CORP
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