西南石油大学学报(自然科学版)

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A Study on Evaluation of Reservoir Quality of Fracturing Wells

FENG Wenyan1, ZENG Fanhui2*, GUO Jianchun2, YIN Congbin2, HAN Xiaoyu3   

  1. 1. Hainan Fushan Oilfield Exploration and Development Co. Ltd.,PetroChina,Haikou,Hainan 570100,China
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    3. Southwest Oil and Gas Field Company Co. Ltd.,CNPC,Chengdu,Sichuan 610051,China
  • Online:2016-04-11 Published:2016-04-11

Abstract:

Accurate evaluation and understanding of well quality before fracturing can improve production and profit significantly.
This paper firstly divides the reservoir capacity into reservoir quality and flow capacity which fall further into elements
as porosity,permeability,gas saturation and other accessible and quantifiable indicating parameters. We establish a multi-level
quality evaluation index system of fracturing wells,which combines fuzzy comprehensive evaluation method with grey correlation
analysis theory,and presents a comprehensive evaluation method through multi-level fuzzy and grey correlation analysis.
After multi-factor comprehensive evaluation,this paper gets a comprehensive evaluation index,which is used to evaluate the
reservoir quality. Field application shows that the method is highly credible and accurate,and can quickly evaluate the quality
of fracturing wells.

Key words: fuzzy mathematics, grey theory, fracturing well, reservoir, comprehensive evaluation

CLC Number: