Evaluation of main factors affecting fractured horizontal well productivity of tight sand gas reservoir in Sichuan Basin

E3S Web of Conferences

Zhai Shuo¹  Liu Linqing²  Li HaiTao²  Wang Jing² 

[1] Chengdu University of Technology;Exploration and Development Research Institute of Petro China Southwest Oil & Gas Field Company;

关键词: tight gas;    fractured horizontal well;    productivity;    grey correlation method;    main control factors;   

DOI  :  10.1051/e3sconf/202132901013

来源: DOAJ

【 摘 要 】

Hydraulic fracturing horizontal well is the key technology of tight gas development. After fracturing, the gas well shows the characteristics of great difference in production energy and many factors affecting production capacity. Therefore, taking 10 fractured horizontal wells in JQ gas field in Sichuan Basin as an example, comprehensively considering the influence of geological and engineering factors, and based on the statistical analysis of gas well productivity and the laws of various index parameters, 17 geological and engineering parameters were selected, and the main factors controlling productivity were studied by grey correlation method. The results show that the tight gas fracturing horizontal well can obtain high production, which is jointly determined by geological and engineering factors. The five main control factors affecting the productivity of tight gas fracturing horizontal well are as follows: proppant type, preflush, ϕ·h. Sand volume and reservoir volume.

【 授权许可】

Unknown