[1]陈冬,王楠哲,叶智慧,等.压实与嵌入作用下压裂裂缝导流能力模型建立与影响因素分析[J].石油钻探技术,2018,46(06):82-89.[doi:10.11911/syztjs.2018148]
 CHEN Dong,WANG Nanzhe,YE Zhihui,et al.Propped Fracture Conductivity Evolution under a Combination of Compaction and Embedment: Establishing a Model and Analyzing the Influencing Factors[J].Petroleum Drilling Techniques,2018,46(06):82-89.[doi:10.11911/syztjs.2018148]
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《石油钻探技术》[ISSN:1001-0890/CN:11-1763/TE]

卷:
46卷
期数:
2018年06期
页码:
82-89
栏目:
油气开发
出版日期:
2018-11-25

文章信息/Info

Title:
Propped Fracture Conductivity Evolution under a Combination of Compaction and Embedment: Establishing a Model and Analyzing the Influencing Factors
作者:
陈冬12 王楠哲2 叶智慧2 张佳亮2
1. 油气资源与探测国家重点实验室(中国石油大学(北京)), 北京 102249;
2. 中国石油大学(北京)石油工程学院, 北京 102249
Author(s):
CHEN Dong12 WANG Nanzhe2 YE Zhihui2 ZHANG Jialiang2
1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum(Beijing), Beijing, 102249, China;
2. College of Petroleum Engineering, China University of Petroleum(Beijing), Beijing, 102249, China
关键词:
水力压裂支撑剂裂缝导流能力压实作用嵌入作用计算模型
Keywords:
hydraulic fractureproppantsfracture conductivitycompaction effectembedmentcalculation model
分类号:
TE357
DOI:
10.11911/syztjs.2018148
摘要:
为了研究支撑剂压实与嵌入双重作用下压裂裂缝导流能力的变化规律,基于孔隙压缩性理论与固体接触理论,建立了考虑压实与嵌入双重作用的压裂裂缝导流能力模型,利用建立的模型对前人的压裂裂缝导流能力实验数据进行了拟合,并对模型参数分布规律及其影响因素进行了讨论分析。研究发现,该模型可以较好地描述压实与嵌入双重作用下压裂裂缝导流能力的变化规律;支撑剂充填层初始孔隙体积压缩系数体现了支撑剂充填层孔隙的压缩性,其值越大,压裂裂缝导流能力变化越大;支撑剂充填层初始孔隙体积压缩系数变化率的绝对值越大,压缩系数变化越大。研究认为,压实与嵌入双重作用下压裂裂缝导流能力模型可以预测压裂裂缝导流能力及其变化规律。
Abstract:
In order to study the variation laws of hydraulic fracture conductivity under dual action of proppant compaction and embedment,a model of propped fracture conductivity considering combined effect of compaction and embedment was constructed.The model built on on pore compressibility theory and solid contact theory, which were also used to fit the data obtained from previous hydraulic fracture conductivity experiments.The distribution laws and influencing factors on model parameters were also discussed. The results show that the model presented here can reasonably describe the variation laws of propped fracture conductivity under the dual action of proppant compaction and embedment.The compressibility coefficient of original pore volume reveals the pore compressibility of the proppant layer.The higher compressibility coefficient will present greater variation of fracture conductivity.Larger variation of the absolute compressibility coefficient of original pore volume leads to greater change of the compressibility coefficient.The established model of hydraulic fracture conductivity under the combined compaction and embedment provides the theoretical basis for forecasting the variation laws of hydraulic fracture conductivity.

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备注/Memo

备注/Memo:
收稿日期:2018-05-11;改回日期:2018-10-18。
基金项目:国家自然科学基金青年科学基金项目"考虑支撑剂压实和嵌入双重作用的压裂裂隙渗透率模型研究"(编号:51604283)、国家自然科学基金国际(地区)合作与交流项目"共采过程中致密气、页岩气、煤层气三气运移机理"(编号:51811530306)和油气资源与探测国家重点实验室开放课题基金项目"非常规储层渗透率各向异性特性研究"(编号:z2018096)资助。
作者简介:陈冬(1981-),男,河北张家口人,2005年毕业于天津城建大学土木工程专业,2008年获中国矿业大学(北京)岩土工程专业硕士学位,2013年获西澳大利亚大学石油与天然气工程专业博士学位,副教授,硕士研究生导师,主要从事非常规天然气开发、多场耦合仿真、智能钻井和石油工程共享AI与云计算等方面的研究。
E-mail:dong.chen@cup.edu.cn。
更新日期/Last Update: 1900-01-01