刘雄;田昌炳;姜龙燕;杨帆;徐秋枫;

• 1:中国石油勘探开发研究院

• 2:中国石化集团华北石油局

• 3:中国地质调查局油气资源调查中心

摘要(Abstract)：

基于区域分形和拟压力法,建立一种可用于致密油藏直井体积压裂稳态产能评价的解析模型,模型考虑人工裂缝网络展布、压敏及启动压力梯度的影响;应用模型分析压敏系数、分形因数、启动压力梯度、改造半径及生产压差等影响产能的参数.结果表明:压敏系数对产能的影响较大,压敏系数越大,产能越低,当压敏系数大于0.1MPa-1时,放大生产压差增产效果不明显;分形因数越大,产能越高,生产压差越大,分形因数对提高产能的效果越显著;启动压力梯度越大,产能越低;改造半径越大,产能越高,改造半径对产能的影响受分形因数和生产压差的制约,分形因数及生产压差越大,改造半径对产能的影响越大.该结果为合理开发致密油藏及体积压裂优化设计提供参考.

关键词(KeyWords)：致密油藏;体积压裂;稳态产能;分形因数;启动压力梯度;压敏系数;改造半径

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05016-006)

作者(Author):刘雄;田昌炳;姜龙燕;杨帆;徐秋枫;

Email:

参考文献(References)：

• [1]南珺祥,王素荣,姚卫华,等.鄂尔多斯盆地陇东地区延长组长6-8特低渗透储层微裂缝研究[J].岩性油气藏,2007,19(4):40-44.Nan Junxiang,Wang Surong,Yao Weihua,et al.Micro-fractures in extra-low permeability reservoir of Yanchang formation in Ordos basin[J].Lithologic Reservoir,2007,19(4):40-44.

• [2]郭彦如,刘俊榜,杨华,等.鄂尔多斯盆地延长组低渗透致密岩性油藏成藏机理[J].石油勘探与开发,2012,39(4):417-425.Guo Yanru,Liu Junbang,Yang Hua,et al.Hydrocarbon accumulation mechanism of low permeable tight lithologic oil reservoirs in the Yanchang formation,Ordos basin,China[J].Petroleum Exploration and Development,2012,39(4):417-425.

• [3]贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.Jia Chengzao,Zou Caineng,Li Jianzhong,et al.Assessment criteria,main types,basic features and resource prospects of the tight oil in china[J].Acta Petrolei Sinica,2012,33(3):343-350.

• [4]邹才能,朱如凯,吴松涛,等.常规与非常规油气聚集类型、特征、机理及展望——以中国致密油和致密气为例[J].石油学报,2012,33(2):173-187.Zou Caineng,Zhu Rukai,Wu Songtao,et al.Types,characteristics,genesis and prospects of conventional and unconventional hydrocarbon accumulations:taking tight oil and tight gas in China as an instance[J].Acta Petrolei Sinica,2012,33(2):173-187.

• [5]刘英宪,尹洪军,苏彦春,等.具有压敏特征的稠油油藏水平井产能分析[J].东北石油大学学报,2012,33(5):57-60.Liu Yingxian,Yin Hongjun,Su yanchun,et al.Analysis of production of horizontal wells in heavy oil with pressure sensitive characteristic[J].Journal of Northeast Petroleum University,2012,33(5):57-60.

• [6]任俊杰,郭平,王德龙,等.页岩气藏压裂水平井产能模型及影响因素[J].东北石油大学学报,2012,36(6):76-81.Ren Junjie,Guo ping,Wang Delong,et al.Productivity model of fractured horizontal wells in shale gas reservoirs and analysis of influential factors[J].Journal of Northeast Petroleum University,2012,36(6):76-81.

• [7]Khalid M,Mansour A.Tight oil reservoir development feasibility study using finite difference simulation and streamlines[R].SPE126099,2009.

• [8]Cipolla C L,Carbo Ceramics,Lolon E P,et al.Reservoir modeling and production evaluation in shale-gas reservoirs[R].IPTC13185,2009.

• [9]Barry Rubin.Accurate simulation of Non-Darcy flow in stimulated fractured shale reservoirs[R].SPE 132093,2010.

• [10]Arvind Harikesavanallur,Franz Deimbacher,Martin Crick,et al.Volumetric fracture modeling approach(VFMA):Incorporating microseismic data in the simulation of shale gas reservoirs[R].SPE 134683,2010.

• [11]Chang M,Xu Zhang,Lang Zhan,et al.Modeling hydraulic fracturing induced fracture networks in shale gas reservoirs as a dual porosity system[R].SPE 132180,2010.

• [12]王文东,赵广渊,苏玉亮,等.致密油藏体积压裂技术应用[J].新疆石油地质,2013,34(3):345-348.Wang Wendong,Zhao Guangyuan,Su Yuliang,et al.Application of network fracturing technology to tight oil reservoir[J].Xinjiang Petroleum Geology,2013,34(3):345-348.

• [13]王文东,苏玉亮,慕立俊,等.致密油藏直井体积压裂储层改造体积的影响因素[J].中国石油大学学报:自然科学版,2013,37(3):93-97.Wang Wendong,Su Yuliang,Mu Lijun,et al.Influening factors of stimulated reservoir volume of vertical wells in tight oil reservoir[J].Journal of China University of Petroleum:Natural Science Edition,2013,37(3):93-97.

• [14]葛家理,宁正福,刘月田,等.现代油藏渗流力学原理[M].北京:石油工业出版社,2003:189-194.Ge Jiali,Ning Zhengfu,Liu Yuetian,et al.Modern reservoir seepage rule[M].Beijing:Petroleum Industry Press,2003:189-194.

• [15]郝明强.微裂缝性特低渗透油藏渗流特征研究[D].廊坊:中国科学院渗流流体力学研究所,2006.Hao Mingqiang.Study on porous flow characteristic in micro-fractured ultra-low permeability reservoir[D].Langfang:Institute of Porous Flow and Fluid Mechnics of CAS,2006.

• [16]王晓冬.渗流力学基础[M].北京:石油工业出版社,2006:41-42.Wang Xiaodong.Foundation seepage mechanics[M].Beijing:Petroleum Industry Press,2006:41-42.