邻侧井应力阴影对水平水力裂缝影响的研究

N. Zangeneh, E. Eberhardt, R.M. Bustin
{"title":"邻侧井应力阴影对水平水力裂缝影响的研究","authors":"N. Zangeneh,&nbsp;E. Eberhardt,&nbsp;R.M. Bustin","doi":"10.1016/j.juogr.2014.11.001","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>Production efficiency from low permeability shale gas reservoirs requires techniques to optimize hydraulic fracture (HF) completions. This may be complicated by the presence of high horizontal in-situ stresses that result in horizontal HF, for example in parts of the Western Canadian </span>Sedimentary Basin<span><span> in northeastern British Columbia. One strategy involves the simultaneous or near simultaneous hydraulic fracturing<span> of adjacent lateral wells to maximize the fracture network area and stimulated reservoir volume. However, changes to the in-situ stress field caused by an earlier HF on subsequent HF are not accounted for in traditional </span></span>hydraulic fracturing design calculations. Presented here are the results from a set of transient, coupled hydro-mechanical simulations of a </span></span>naturally fractured rock<span> mass containing two wellbores using the discontinuum-based distinct-element method. The results demonstrate the influence of stress shadows generated by a HF on the development of subsequent HF from an adjacent well. It is shown here that these interactions have the potential to change the size and effectiveness of the HF stimulation by changing the extent of the induced fracture around the secondary well. Also, the influences of in-situ stress and operational factors on the stress shadow effect are investigated and their effects on different operational techniques are studied.</span></p></div>","PeriodicalId":100850,"journal":{"name":"Journal of Unconventional Oil and Gas Resources","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.juogr.2014.11.001","citationCount":"20","resultStr":"{\"title\":\"Investigation of the influence of stress shadows on horizontal hydraulic fractures from adjacent lateral wells\",\"authors\":\"N. Zangeneh,&nbsp;E. Eberhardt,&nbsp;R.M. Bustin\",\"doi\":\"10.1016/j.juogr.2014.11.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span><span>Production efficiency from low permeability shale gas reservoirs requires techniques to optimize hydraulic fracture (HF) completions. This may be complicated by the presence of high horizontal in-situ stresses that result in horizontal HF, for example in parts of the Western Canadian </span>Sedimentary Basin<span><span> in northeastern British Columbia. One strategy involves the simultaneous or near simultaneous hydraulic fracturing<span> of adjacent lateral wells to maximize the fracture network area and stimulated reservoir volume. However, changes to the in-situ stress field caused by an earlier HF on subsequent HF are not accounted for in traditional </span></span>hydraulic fracturing design calculations. Presented here are the results from a set of transient, coupled hydro-mechanical simulations of a </span></span>naturally fractured rock<span> mass containing two wellbores using the discontinuum-based distinct-element method. The results demonstrate the influence of stress shadows generated by a HF on the development of subsequent HF from an adjacent well. It is shown here that these interactions have the potential to change the size and effectiveness of the HF stimulation by changing the extent of the induced fracture around the secondary well. Also, the influences of in-situ stress and operational factors on the stress shadow effect are investigated and their effects on different operational techniques are studied.</span></p></div>\",\"PeriodicalId\":100850,\"journal\":{\"name\":\"Journal of Unconventional Oil and Gas Resources\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.juogr.2014.11.001\",\"citationCount\":\"20\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Unconventional Oil and Gas Resources\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2213397614000469\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Unconventional Oil and Gas Resources","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213397614000469","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 20

摘要

为了提高低渗透页岩气藏的生产效率,需要优化水力压裂完井技术。例如,在不列颠哥伦比亚省东北部的加拿大西部沉积盆地的部分地区,由于存在高水平地应力,导致水平HF,这可能会使情况变得复杂。一种策略是对相邻的水平井同时或几乎同时进行水力压裂,以最大限度地扩大裂缝网络面积和增产的储层体积。然而,在传统的水力压裂设计计算中,早期HF对后续HF造成的地应力变化并没有被考虑在内。本文采用基于非连续面的不同单元方法,对含两口井的天然裂缝岩体进行了一组瞬态耦合水力力学模拟。结果证明了高频产生的应力阴影对邻井后续高频开发的影响。研究表明,这些相互作用有可能通过改变二次井周围诱导裂缝的程度来改变高频增产的规模和效果。研究了地应力和作业因素对应力阴影效应的影响,以及它们对不同作业技术的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of the influence of stress shadows on horizontal hydraulic fractures from adjacent lateral wells

Production efficiency from low permeability shale gas reservoirs requires techniques to optimize hydraulic fracture (HF) completions. This may be complicated by the presence of high horizontal in-situ stresses that result in horizontal HF, for example in parts of the Western Canadian Sedimentary Basin in northeastern British Columbia. One strategy involves the simultaneous or near simultaneous hydraulic fracturing of adjacent lateral wells to maximize the fracture network area and stimulated reservoir volume. However, changes to the in-situ stress field caused by an earlier HF on subsequent HF are not accounted for in traditional hydraulic fracturing design calculations. Presented here are the results from a set of transient, coupled hydro-mechanical simulations of a naturally fractured rock mass containing two wellbores using the discontinuum-based distinct-element method. The results demonstrate the influence of stress shadows generated by a HF on the development of subsequent HF from an adjacent well. It is shown here that these interactions have the potential to change the size and effectiveness of the HF stimulation by changing the extent of the induced fracture around the secondary well. Also, the influences of in-situ stress and operational factors on the stress shadow effect are investigated and their effects on different operational techniques are studied.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信