裂缝性稠油油藏蒸汽吞吐产能预测模型A Model for Productivity Prediction of Fractured Heavy Oil Reservoir in Cyclic Steam Stimulation
何聪鸽;范子菲;许安著;方思冬;冀中原;
摘要(Abstract):
针对裂缝性油藏为裂缝-孔隙型双重介质且加热区内地层温度为非等温分布,在常规稠油油藏蒸汽吞吐加热半径计算模型的基础上,通过引入加热区前沿温度,构建了考虑地层温度为非等温分布的裂缝性稠油油藏蒸汽吞吐加热半径计算模型,并基于天然裂缝等效渗透率张量理论,将裂缝性油藏变换成等效各向同性油藏,最终推导出裂缝性稠油油藏蒸汽吞吐产能预测模型。以某裂缝性稠油油藏为例进行了计算,结果表明,本文产能预测模型计算结果与裂缝性双重介质热采数值模拟计算结果基本吻合,从而验证了本文模型的准确性。敏感性分析表明,蒸汽吞吐加热半径是加热区前沿温度的函数,加热半径随前沿温度的降低而增大,产量随裂缝孔隙度的增加而增大。
关键词(KeyWords): 裂缝性稠油油藏;蒸汽吞吐;加热半径;非等温模型;产能;渗透率张量
基金项目(Foundation): 中国石油集团公司重大科技专项(2011E-2504)
作者(Author): 何聪鸽;范子菲;许安著;方思冬;冀中原;
Email:
DOI:
参考文献(References):
- [1]朱芳冰,肖伶俐,唐小云.辽河盆地西部凹陷稠油成因类型及其油源分析[J].地质科技情报,2004,23(4):55-58.
- [2]Mirkalaei S M,Masoudi R,Ataei A.Evaluation of steam flooding and cyclic steam stimulation for a fractured carbonate heavy oil reservoir[J].IPTC,2012,15454.
- [3]Bahlani A A,Bahadagli T.Heavy-oil recovery in naturally fractured reservoirs with varying wettability by steam solvent coinjection[J].SPE,2008,117626.
- [4]Bahonar M,Ataei A,Masoudi R,et al.Evaluation of steam injection in a fractured heavy-oil carbonate reservoir in Iran[J].SPE,2007,105299.
- [5]Mohammadi S,Ehsani M R,Sahranavard L,et al.Study of steam injection in a fractured carbonate heavy oil reservoir in Iran[J].SPE,2012,144943.
- [6]Van Heel A P G,Van Dorp J J,Boerrigter P M,et al.Heavy-oil recovery by steam injection in fractured reservoirs[J].SPE,2008,113461.
- [7]王毅忠,袁士义,宋新民,等.大港油田枣35块火成岩裂缝性稠油油藏采油机理数值模拟研究[J].石油勘探与开发,2004,31(4):105-107.
- [8]袁士义,冉启全,胡永乐,等.火成岩裂缝性稠油油藏有效开发方式[J].石油学报,2006,26(4):63-68.
- [9]Marx J W,Langenheim R H.Reservoir heating by hot fluid injection petroleum transactions[J].AIME,1959,216:312-315.
- [10]Willman B T,Valleroy V V,Runberg G W,et al.Laboratory studies of oil recovery by steam injection[J].JPT,1961,13(7):681-696.
- [11]刘学利,杜志敏,韩忠艳,等.裂缝性稠油油藏蒸汽吞吐动态预测模型[J].新疆石油地质,2005,24(5):448-450.
- [12]李春兰,杨炳秀.稠油蒸汽吞吐开采非等温渗流产量预测模型[J].石油钻采工艺,2003,25(5):89-90.
- [13]郑舰,陈更新,刘鹏程.一种新型蒸汽吞吐产能预测解析模型[J].石油天然气学报:江汉石油学院学报,2011,33(5):111-114.
- [14]刘文章.稠油注蒸汽热采工程[M].北京:石油工业出版社,1997:106-133.
- [15]刘建军,张盛宗,刘先贵,等.裂缝性低渗透油藏流-固耦合理论与数值模拟[J].力学学报,2002,34(5):779-784.
- [16]Lee S H,Jensen C L,Lough M F.An efficient finite difference model for flow in a reservoir with multiple length-scale fractures[J].SPE,2007,56752.
- [17]方思冬,战剑飞,黄世军,等.致密油藏多角度裂缝压裂水平井产能计算方法[J].油气地质与采收率,2015,22(3):84-89.
- [18]Boberg T C,Lantz R B.Calculation of the production rate of a thermally stimulated well[J].JPT,1966,18(12):1613-1623.
- [19]侯建,陈月明.一种改进的蒸汽吞吐产能预测模型[J].石油勘探与开发,1997,24(3):53-56.
- [20]刘慧卿,范玉平,赵东伟,等.热力采油技术原理与方法[M].东营:石油大学出版社,2008:44-64.
- [21]陈月明.注蒸汽热力采油[M].东营:石油大学出版社,1996:64-83.