缅甸伊洛瓦底盆地探井压裂测试实践及认识
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摘要
在伊洛瓦底盆地缅甸国家石油公司的首次探井压裂工作中,确定了工区内的走滑挤压地应力状态(Ⅲ型);根据小型压裂测试,调整了主加砂压裂方案,在DST3层设计中全程组合陶粒方案,保障加砂作业的安全顺利实施;压后产出了高凝、高粘中质油,认为受低渗及高粘及多相渗流影响,非达西渗流特征显著、流动阻力会更大,是完井测试低产出及压后供给能力不足的重要因素;受低渗及多相渗流影响,高含水饱和度的储层压后见效的可能性低,是压裂选井、选层工作中值得重视的问题。
In the Irrawaddy basin Myanma oil and gas exploration well fracturing work for the first time,make sure that the work area of the strike-slip compression stress state(Ⅲ type);under the small fracturing test,adjust the main sand fracturing program,in the design of the whole combination DST3 layer ceramic plans,ensuring the operational safety sand smooth implementation.After the output of a high-pressure condensate,high viscosity Intermediate oil,that by hypotonic and multiphase flow and viscous effects,a significant non-Darcy flow characteristics,flow resistance will be greater,is the completion and after pressure testing low output insufficient supply capacity an important factor;under hypotonic and multiphase seepage,high water saturation of the reservoir pressure after the effective possibility is low,is fracturing well selection,layer selection work worthy of attention.
In the Irrawaddy basin Myanma oil and gas exploration well fracturing work for the first time,make sure that the work area of the strike-slip compression stress state(Ⅲ type);under the small fracturing test,adjust the main sand fracturing program,in the design of the whole combination DST3 layer ceramic plans,ensuring the operational safety sand smooth implementation.After the output of a high-pressure condensate,high viscosity Intermediate oil,that by hypotonic and multiphase flow and viscous effects,a significant non-Darcy flow characteristics,flow resistance will be greater,is the completion and after pressure testing low output insufficient supply capacity an important factor;under hypotonic and multiphase seepage,high water saturation of the reservoir pressure after the effective possibility is low,is fracturing well selection,layer selection work worthy of attention.
引文
[1]王平,邹德江,武新民.缅甸伊洛瓦底盆地油气地质特征[J].西部探矿工程,2011,8:64-67.
[2]陈剑光,刘怀山,周军,等.缅甸D区块构造特征与油气储层评价[J].西北地质,2011,39(1):105-114.
[3]李红,曹永斌,王新云.缅甸D区块石油地质特征与勘探潜力[J].石油与天然气地质,2011,32(1):265-272.
[4]王平.含油盆地构造力学原理[M].北京:石油工业出版社,1993.
[5]李志明,张金珠.地应力与油气勘探开发[M].北京:石油工业出版社,1997.
[6]WahlH A and Campbell J M.Sand Movement in Horizon-tall Fractures[R].SPE 564,1963.
[7]郑亚东,王涛,王新社.新世纪构造地质学与力学的新理论——最大有效力矩准则[J].自然科学进展,2005,15(2):142-148.
[8]Castillo J L.Modified Fracture Pressure Decline AnalysisIncluding Pressure-Dependent Leakoff[R].SPE 16417,1987.
[9]Ayoub J A,Brown J E,Barree R D et al.Diagnosis andEvaluation of Fracturing Treatments[R].SPE 20581,1992.
[10]Barree R D,Mukherjee H.Determination of Pressure De-pendent Leakoff and Its Effect on Fracture Geometry[R].SPE 36424,1996.
[11]Barree R D.Application of Pre-frac Injection/fall off Testsin Fissured Reservoirs-Field Examples[R].SPE 39932,1998.
[12]David P C et al.CaseHistory:Observations from Diagnos-tic Injection Tests in Multiple Pay Sands of the MammCreek Field,Piceance Basin,Clolorado[R].SPE 60321,2000.
[13]李行船.油气运移动力学及动力耦合作用机制研究[D].北京:中国地震局地质所,2007.
[14]王志欣,信荃麟.关于地下断层封闭性的讨论——以东营凹陷为例[J].高校地质学报,1997,3(3):293-300.
[15]吕成远,王建,孙志刚.低渗透砂岩油藏渗流启动压力梯度实验研究[J].石油勘探与开发,2004,29(2).
[16]何建华.低渗透油藏渗流特征及合理井距分析研究[J].石油天然气学报,2005,27(5)621-623.
[17]尚会昌,李行船,武好杰.中东X区块致密砂岩压裂过程中的储层保护[J].石油钻探技术,2010,38(5).
[18]Keith W Shanley,Robert M Cluff,John W Robinson.Fac-tors Controlling Prolific Gas Production from Low-perme-ability Sandstone Reservoirs:Implications for Resource As-sessment,Prospect Development,and Risk Analysis[R].AAPG Bulletin,2004,88(8):1083-1121.
[2]陈剑光,刘怀山,周军,等.缅甸D区块构造特征与油气储层评价[J].西北地质,2011,39(1):105-114.
[3]李红,曹永斌,王新云.缅甸D区块石油地质特征与勘探潜力[J].石油与天然气地质,2011,32(1):265-272.
[4]王平.含油盆地构造力学原理[M].北京:石油工业出版社,1993.
[5]李志明,张金珠.地应力与油气勘探开发[M].北京:石油工业出版社,1997.
[6]WahlH A and Campbell J M.Sand Movement in Horizon-tall Fractures[R].SPE 564,1963.
[7]郑亚东,王涛,王新社.新世纪构造地质学与力学的新理论——最大有效力矩准则[J].自然科学进展,2005,15(2):142-148.
[8]Castillo J L.Modified Fracture Pressure Decline AnalysisIncluding Pressure-Dependent Leakoff[R].SPE 16417,1987.
[9]Ayoub J A,Brown J E,Barree R D et al.Diagnosis andEvaluation of Fracturing Treatments[R].SPE 20581,1992.
[10]Barree R D,Mukherjee H.Determination of Pressure De-pendent Leakoff and Its Effect on Fracture Geometry[R].SPE 36424,1996.
[11]Barree R D.Application of Pre-frac Injection/fall off Testsin Fissured Reservoirs-Field Examples[R].SPE 39932,1998.
[12]David P C et al.CaseHistory:Observations from Diagnos-tic Injection Tests in Multiple Pay Sands of the MammCreek Field,Piceance Basin,Clolorado[R].SPE 60321,2000.
[13]李行船.油气运移动力学及动力耦合作用机制研究[D].北京:中国地震局地质所,2007.
[14]王志欣,信荃麟.关于地下断层封闭性的讨论——以东营凹陷为例[J].高校地质学报,1997,3(3):293-300.
[15]吕成远,王建,孙志刚.低渗透砂岩油藏渗流启动压力梯度实验研究[J].石油勘探与开发,2004,29(2).
[16]何建华.低渗透油藏渗流特征及合理井距分析研究[J].石油天然气学报,2005,27(5)621-623.
[17]尚会昌,李行船,武好杰.中东X区块致密砂岩压裂过程中的储层保护[J].石油钻探技术,2010,38(5).
[18]Keith W Shanley,Robert M Cluff,John W Robinson.Fac-tors Controlling Prolific Gas Production from Low-perme-ability Sandstone Reservoirs:Implications for Resource As-sessment,Prospect Development,and Risk Analysis[R].AAPG Bulletin,2004,88(8):1083-1121.
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