Rock/Fluid Chemistry Impacts on Shale Fracture Behavior

Author:

Aderibigbe Aderonke A.1,Lane Robert H.1

Affiliation:

1. Texas A&M University

Abstract

Abstract At realistic surfactant concentrations used in fracturing fluid additives, the differences in the average strengths of shale exposed to solutions of these additives are not sufficient to establish a direct correlation between the chemical effect of the surfactants and the mechanical strength of the formation. Prior studies of formations with high quartz content suggest that the adsorption of surfactant on the surface alters formation strength. In this study, using Mancos shale samples, the rock mineralogy, total organic carbon and cation exchange capacity of the Mancos shale samples were determined in order to characterize the shale. Adsorption tests to study the interaction of the shale and aqueous fluid mixture were also carried out using surface tension measurements. The uniaxial compressive strengths and indirect tensile strengths of about 100 rock samples exposed to different fluid environments were measured using unconfined compression and Brazilian tests respectively. Microseismic events, possibly due to microfracture generation or growth, are known to continue for some time as stresses relax after shutdown of hydraulic fracture pumps. Hence, the study of the role of surface chemical effects in compression and tensile fracturing is important in determining whether rock/fluid chemistry can be exploited to improve the growth of conductive microfractures.

Publisher

SPE

Cited by 8 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3