RESEARCH ARTICLE


The Key and the Countermeasures Research of Shale Gas Fracturing Technology



Yong Tang1, *, Bin Wang1, Fanhua Zeng2, Jun Wang3
1 The State Key Laboratory of Oil and Gas Reservoir Geology & Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2 Faculty of Engineering and Applied Science, University of Regina, SK, S4S 0A2, Canada;
3 School of Oil & Natural Gas Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China


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© 2015 Tang et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: Address correspondence to this author at the The State Key Laboratory of Oil and Gas Reservoir Geology & Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Tel: +86-13084410503; Fax: +86-028-83032901; E-mail: tangy@swpu.edu.cn


Abstract

Shale gas resources are abundantly distributed with low porosity and permeability. Horizontal well and fracturing are prior considerations. Fracturing is a widely-used technology to enhance gas production. In this paper, the author (a) investigated the present stimulation of Barnett and Haynesvile gas fields (Fig. 1) in America, Sichuan basin (Fig. 2) in China and Cooper basin (Fig. 3) in Australia; (b) compared different characteristics and limitations of multi-stage fracturing, water-fracturing, simultaneous fracturing, net fracturing, refracturing and hydraulic jet fracturing; (c) analyzed the critical point of the shale fracturing; (d) offered solutions to the fracturing fluid manufacture, selection and improvement of the fracturing fluids, fractures extension, equipments, fracturing effect evaluation and reservoir protection. It has a farreaching significance to improve fracturing and stimulation of shale gas reservoirs, in view of the high risk, low success ratio and poor stimulation effect the shale gas exploration would face.

Keywords: Countermeasures, fracturing technology, fracturing fluid, shale gas.