泥质薄夹层不同参数对油砂SAGD开发效果的影响
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摘要
泥质夹层对油砂SAGD的开发效果具有一定影响。以加拿大麦凯河某区块为研究对象,利用数值模拟手段,对位于注入井上方和注采井间的泥质薄夹层进行表征,模拟对比了泥质薄夹层的位置、延展长度、渗透率、厚度以及条数对SAGD开发效果的影响,得到了油砂SAGD开发的泥质薄夹层的临界参数。研究表明,泥质薄夹层位于注入井上方时对SAGD开发效果影响较小,位于注采井间时有不利影响,且越靠近生产井,蒸汽腔发育越晚,累产油量越低。注采井间泥质薄夹层超过7条、延展长度超过20 m时蒸汽腔几乎不发育,而渗透率与厚度对SAGD开发效果影响不明显。因此油砂SAGD布井时注采井间应尽量避开泥质薄夹层,从而有效降低泥质薄夹层对SAGD的影响。该研究结果,对于指导油砂SAGD部署、规避地质风险、实现SAGD高效开发具有重要指导意义。
Thin muddy interlayers are widely developed in Mackay River oil sands. The centimeter-scale interlayers have a great impact on the steam assisted gravity drainage( SAGD) performance. Based on the actual parameters in the Mackay River oil sands block,a numerical simulation model with the thin muddy interlayers located between or above injector-producer was established,and the thin muddy interlayers with different locations,length,permeability,thickness and numbers were simulated to investigate their impacts on the SAGD performance,and the threshold parameters were obtained. The results show that the thin muddy interlayers above the injector have minor impact on the SAGD performance,while those located between the injector-producer have significant adverse impacts. The closer the thin muddy interlayers from to the producer,the laterwould the steam chamber develop,and the lower is the cumulative oil production. When the length of thin muddy interlayer exceeds 20 meters and the number of thin muddy interlayer exceeds seven,the steam chamber can hardly be developed,and the permeability and thickness have little impact on the SAGD performance. Therefore,SAGD deployment should avoid the thin muddy interlayers between injector-producers. The findings have substantial guiding significance in conducting SAGD development planning in minimizing geology risks and improving SAGD efficiency.
Thin muddy interlayers are widely developed in Mackay River oil sands. The centimeter-scale interlayers have a great impact on the steam assisted gravity drainage( SAGD) performance. Based on the actual parameters in the Mackay River oil sands block,a numerical simulation model with the thin muddy interlayers located between or above injector-producer was established,and the thin muddy interlayers with different locations,length,permeability,thickness and numbers were simulated to investigate their impacts on the SAGD performance,and the threshold parameters were obtained. The results show that the thin muddy interlayers above the injector have minor impact on the SAGD performance,while those located between the injector-producer have significant adverse impacts. The closer the thin muddy interlayers from to the producer,the laterwould the steam chamber develop,and the lower is the cumulative oil production. When the length of thin muddy interlayer exceeds 20 meters and the number of thin muddy interlayer exceeds seven,the steam chamber can hardly be developed,and the permeability and thickness have little impact on the SAGD performance. Therefore,SAGD deployment should avoid the thin muddy interlayers between injector-producers. The findings have substantial guiding significance in conducting SAGD development planning in minimizing geology risks and improving SAGD efficiency.
引文
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[2]罗杰M·巴特勒.重油和沥青的热力开采工艺[M].王秉璋,许建华,李静,译.北京:石油工业出版社,1994:214-275.
[3]赵鹏飞,王勇,李志明,等.加拿大阿尔伯达盆地油砂开发状况和评价实践[J].地质科技情报,2003,32(1):155-162.
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[6]鹿腾,李兆敏,韩继超,等.页岩夹层及压裂裂缝对蒸汽辅助重力泄油蒸汽腔扩展的影响[J].石油钻采工艺,2012,34(1):95-99.
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[11]石兰香,李秀峦,刘荣军,等.夹层对SAGD开发效果影响研究[J].特种油气藏,2015(5):133-136.
[12]桑林翔,杨万立,杨浩哲,等.重18井区J3q3层夹层分布对SAGD开发效果的影响[J].特种油气藏,2015(3):81-84.
[13]LI W,MAMORA D D,LI Y,et al.Numerical investigation of potential injection strategies to reduce shale barrier impacts on SAGD process[J].Journal of Canadian Petroleum Technology,2011,50(3):57-64.
[14]POOLADI-DARVISH M,MATTAR L.SAGD operations in the presence of overlying gas cap and water layer-effect of shale layers[J].Journal of Canadian Petroleum Technology,2002,41(6):40-51.
[15]李春梅,李素梅,李雪,等.山东东营凹陷八面河油田稠油成因分析[J].现代地质,2005,19(2):280-286.
[16]JOSHI S D.A laboratory study of thermal oil recovery using horizontal wells[J].SPE 14916,1986.
[17]YANG G,BUTLER R M.Effects of reservoir heterogeneities on heavy oil recovery by steam-assisted gravity drainage[J].Journal of Canadian Petroleum Technology,1992,31(8):37-43.
[18]魏绍蕾,程林松,张辉登,等.夹层对加拿大麦凯河油砂区块双水平井蒸汽辅助重力泄油开发的影响[J].油气地质与采收率,2016(2):62-69.
[19]SHIN H,CHOE J.Shale barrier effects on the SAGD performance[R].Abu Dhabi:Society of Petroleum Engineers,2009.
[20]IPEK G,FRAUENFELD T,YUAN J Y.Numerical study of shale issues in SAGD[R].Calgary:Petroleum Sociaty of Canada,2008.
[21]CHEN Q,GERRITSEN M G,KOVSCEK A R.Effects of reservoir heterogeneities on the steam-assisted gravity-drainage process[J].SPE Reservoir Evaluation&Engineering,2008,11(5):921-932.
[22]DANG C T Q,NGUYEN N T B,BAE W,et al.Investigation of SAGD recovery process in complex reservoir[R].Brisbane:Society of Petroleum Engineers,2010.
[2]罗杰M·巴特勒.重油和沥青的热力开采工艺[M].王秉璋,许建华,李静,译.北京:石油工业出版社,1994:214-275.
[3]赵鹏飞,王勇,李志明,等.加拿大阿尔伯达盆地油砂开发状况和评价实践[J].地质科技情报,2003,32(1):155-162.
[4]ZHOU You,XI Chengfeng,WU Jian.Effect of Barriers on the SAGD Performance Result[P/OL].IPTC,2013.https://www/researchgate.net/publication/301912402_Effect_of_Barriers_on_the_SAGD_Performance_Result.
[5]唐帅,刘鹏程,潘莉莉,等.稠油油藏井间泥岩夹层对双水平井SAGD开发效果的影响[J].现代地质,2016,30(2):388-393.
[6]鹿腾,李兆敏,韩继超,等.页岩夹层及压裂裂缝对蒸汽辅助重力泄油蒸汽腔扩展的影响[J].石油钻采工艺,2012,34(1):95-99.
[7]WU Y,JIANG Y,HE W,et al.Shale barrier failure strategies in heterogeneous SAGD reservoirs:A case study[R].Calgary:Society of Petroleum Engineers,2013.
[8]RAVALEC M L,MORLOT C,MARMIER R,et al.Heterogeneity impact on SAGD process performance in mobile heavy oil reservoirs[J].Oil&Gas Science&Technology,2009,64(4):469-476.
[9]NASR T N,LAW D,BEAULIEU G,et al.SAGD application in gas cap and top water oil reservoirs[J].Journal of Canadian Petroleum Technology,2003,42(1):32-38.
[10]郑贺梅,刘鹏程,郑舰.特超稠油油藏水平井蒸汽驱油物理模拟实验[J].现代地质,2015,29(6):1467-1474.
[11]石兰香,李秀峦,刘荣军,等.夹层对SAGD开发效果影响研究[J].特种油气藏,2015(5):133-136.
[12]桑林翔,杨万立,杨浩哲,等.重18井区J3q3层夹层分布对SAGD开发效果的影响[J].特种油气藏,2015(3):81-84.
[13]LI W,MAMORA D D,LI Y,et al.Numerical investigation of potential injection strategies to reduce shale barrier impacts on SAGD process[J].Journal of Canadian Petroleum Technology,2011,50(3):57-64.
[14]POOLADI-DARVISH M,MATTAR L.SAGD operations in the presence of overlying gas cap and water layer-effect of shale layers[J].Journal of Canadian Petroleum Technology,2002,41(6):40-51.
[15]李春梅,李素梅,李雪,等.山东东营凹陷八面河油田稠油成因分析[J].现代地质,2005,19(2):280-286.
[16]JOSHI S D.A laboratory study of thermal oil recovery using horizontal wells[J].SPE 14916,1986.
[17]YANG G,BUTLER R M.Effects of reservoir heterogeneities on heavy oil recovery by steam-assisted gravity drainage[J].Journal of Canadian Petroleum Technology,1992,31(8):37-43.
[18]魏绍蕾,程林松,张辉登,等.夹层对加拿大麦凯河油砂区块双水平井蒸汽辅助重力泄油开发的影响[J].油气地质与采收率,2016(2):62-69.
[19]SHIN H,CHOE J.Shale barrier effects on the SAGD performance[R].Abu Dhabi:Society of Petroleum Engineers,2009.
[20]IPEK G,FRAUENFELD T,YUAN J Y.Numerical study of shale issues in SAGD[R].Calgary:Petroleum Sociaty of Canada,2008.
[21]CHEN Q,GERRITSEN M G,KOVSCEK A R.Effects of reservoir heterogeneities on the steam-assisted gravity-drainage process[J].SPE Reservoir Evaluation&Engineering,2008,11(5):921-932.
[22]DANG C T Q,NGUYEN N T B,BAE W,et al.Investigation of SAGD recovery process in complex reservoir[R].Brisbane:Society of Petroleum Engineers,2010.