疏松砂岩储层出砂分析测井评价新方法
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摘要
渤海油田新近系疏松砂岩储层分布广泛,其显著的出砂特点为油田开发生产带来巨大风险。传统出砂分析方法受限于地应力计算精度,现场应用效果不理想。在渤海蓬莱X油田新近系疏松砂岩岩心实验数据分析基础上,利用岩石物性参数建立了对研究区适用性较好的内聚力和内摩擦角计算方法;结合疏松砂岩储层微观出砂机理分析,应用莫尔-库伦破裂理论构建了内聚力和内摩擦角相结合的测井评价临界生产压差图版。蓬莱X油田60余口井的现场应用表明,本文新方法出砂预测成功率大于80%,为现场提供了一种简单、快速进行出砂层位识别和风险分析的手段。
The unconsolidated sandstone reservoirs in the Neogene are widely distributed in Bohai oilfield.Its remarkable characteristic of sand production poses great risks for the oilfield development and production.Conventional method of sand production analysis was limited by the low precision of in-situ stress calculation,and the actual application was not satisfactory.Based on the core experimental data analysis of the Neogene unconsolidated sandstone of PL X oilfield in Bohai sea,new methods for calculating cohesion and internal friction angle with favorable applicability were established by using petrophysical parameters.Combining with the analysis of micro-sanding mechanism in unconsolidated sandstone reservoirs,a new critical production pressure drawdown chart of log evaluation was introduced by integrating both cohesion and internal friction angle based on Mohr-Coulomb fracture theory.The field application of more than 60 wells in PL X oilfield shows that the success rate of sand production prediction in this paper is higher than 80%.The new method provides a simple and quick means of layers identification and risk analysis in sand production.
The unconsolidated sandstone reservoirs in the Neogene are widely distributed in Bohai oilfield.Its remarkable characteristic of sand production poses great risks for the oilfield development and production.Conventional method of sand production analysis was limited by the low precision of in-situ stress calculation,and the actual application was not satisfactory.Based on the core experimental data analysis of the Neogene unconsolidated sandstone of PL X oilfield in Bohai sea,new methods for calculating cohesion and internal friction angle with favorable applicability were established by using petrophysical parameters.Combining with the analysis of micro-sanding mechanism in unconsolidated sandstone reservoirs,a new critical production pressure drawdown chart of log evaluation was introduced by integrating both cohesion and internal friction angle based on Mohr-Coulomb fracture theory.The field application of more than 60 wells in PL X oilfield shows that the success rate of sand production prediction in this paper is higher than 80%.The new method provides a simple and quick means of layers identification and risk analysis in sand production.
引文
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[8] RAMOS G G,KATAHARA K W,GRAY J D,et al.Sand production in vertical and horizontal wells in a friable sandstone formation,North Sea[C]∥Rock Mechanics in Petroleum Engineering.Society of Petroleum Engineers,1994.
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[12] MORITA N,WHITFILl D L,FEDDE O P,et al.Parametric study of sand-production prediction:analytical approach[J].SPE Production Engineering,1989,4(1):25-33.
[13] MORITA N,WHITFILL D L,MASSIE I,et al.Realistic sandproduction prediction:numerical approach[J].SPE Production Engineering,1989,4(1):15-24.
[14] WILLSON S M,MOSCHOVIDIS Z A,CAMERON J R,et al.New model for predicting the rate of sand production[C]∥SPE/ISRM Rock Mechanics Conference.Society of Petroleum Engineers,2002.
[15]王彦利,陈小凡,邓生辉,等.疏松砂岩临界出砂压差的计算方法研究及应用[J].西南石油大学学报(自然科学版),2009,31(1):78-80.WANG Yanli,CHEN Xiaofan,DENG Shenghui,et al.Thecalculation method study and applicaiton of the critical sand production pressure diffrence in loose sandstone[J].Journal of Southwest Petroleum University(Science&Technology Edition),2009,31(1):78-80.
[16] OLUYEMI G F,OYENEYIN M B.Analytical critical drawdown(CDD)failure model for real time sanding potential prediction based on Hoek and Brown failure criterion[J].Journal of Petroleum and Gas Engineering,2010,1(2):16-25.
[17] ARAUJO GUERRERO E F,ALZATE G A,ARBELAEZ-LONDONO A,et al.Analytical prediction model of sand production integrating geomechanics for open hole and cased-perforated wells[C]∥SPE Heavy and Extra Heavy Oil Conference:Latin America.Society of Petroleum Engineers,2014.
[18] DIKSON O U,DAVId O O.Mchanistic models for predicting sand production:A case study of Niger delta wells[R].SPE-178279-MS,2015.
[19]石林,张旭东,金衍,等.深层地应力测量新方法[J].岩石力学与工程学报,2004,23(14):2355-2358.SHI Lin,ZHANG Xudong,JIN Yan,et al.New method for measurement of in-situ stresses at great depth[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(14):2355-2358.
[20]陈勉,周健,金衍,等.随机裂缝性储层压裂特征实验研究[J].石油学报,2008,29(3):431-434.CHEN Mian,ZHOU Jian,JIN Yan,et al.Experimental study on fracturing features in naturally fractured reservoir[J].Acta Petrolei Sinica,2008,29(3):431-434.
[21] DUSSEAULT M B,SANTARELLI F J.A conceptual model for massive solids production in poorly-consolidated sandstones[C]∥ISRM International Symposium.International Society for Rock Mechanics,1989.
[22] SUMAN G O.Uncolidated sand stabilization through wellbore stress state control[R].Paper SPE 5717.50th Annual Mtg,Dallas,1975.
[23]张景和,孙宗颀.地应力、裂缝测试技术在石油勘探开发中的应用[M].北京:石油工业出版社,2001.
[24] ROZOS D,KOUKIS G.An investigation of the mineralogical,physical and mechanical properties of Greek laterites[J].Bulletin of the International Association of Engineering Geology,1986,33(1):91-96.
[25] AL-HARTHI A A,AL-AMRI R M,SHEHATA W M.The porosity and engineering properties of vesicular basalt in Saudi Arabia[J].Engineering Geology,1999,54(3/4):313-320.
[26] BALSHIN M Y.Relation of mechanical properties of powder metals and their porosity and the ultimate properties of porous metal-ceramic materials[C]∥Dokl Akad Nauk SSSR,1949,67(5):831-834.
[27] FARQUHAR R A,SMART B G D,CRAWFORD B R.Porosity-strength correlation:Failure criteria from porosity logs[C]∥SPWLA 34th Annual Logging Symposium.Society of Petrophysicists and Well-Log Analyst,1993.
[28] RYSHKEWITCH E.Compression strength of porous sintered alumina and zirconia[J].Journal of the American Ceramic Society,1953,36(2):65-68.
[29] SMORODINOV M I,MOTOVILOV E A,VOLKOV V A.Determinations of correlation relationships between strength and some physical characteristics of rocks[J].International Society of Rock Mechanics,Proceedings,1970(1):1-19.
[30] GURSON A L.Continuum theory of ductile rupture by void nucleation and growth:Part I:Yield criteria and flow rules for porous ductile media[J].Journal of Engineering Materials and Technology,1977,99(1):2-15.
[31] TVERGAARD V.Influence of voids on shear band instabilities under plane strain conditions[J].International Journal of Fracture,1981,17(4):389-407.
[32] VEEKEN C A M,DAVIES D R,KENTER C J,et al.Sand production prediction review:developing an integrated approach[C]∥SPE annual technical conference and exhibition.Society of Petroleum Engineers,1991.
[2]王厚东,闫伟,孙金,等.稠油热采井注热过程数值模拟与参数优选[J].中国海上油气,2016,28(5):104-109.DOI:10.11935/j.issn.1673-1506.2016.05.017.WANG Houdong,YAN Wei,SUN Jin,et al.Numerical simulation and parameter optimization for heat injecting progress of heavy oil thermal recovery wells[J].China Offshore Oil and Gas,2016,28(5):104-109.DOI:10.11935/j.issn.1673-1506.2016.05.017.
[3]王利华,邓金根,周建良,等.弱固结砂岩气藏出砂物理模拟实验[J].石油学报,2011,32(6):1007-1011.WANG Lihua,DENG Jingen,ZHOU Jianliang,et al.A physical simulation experiment on sanding in weakly consolidated sandstone gas reservoirs[J].Acta Petrolei Sinica,2011,32(6):1007-1011.
[4] WEINGARTEN J S,PERKINS T K.Prediction of sand production in gas wells:methods and Gulf of Mexico case studies[J].Journal of Petroleum Technology,1995,47(7):596-600.
[5] TIXIER M P,LOVELESS G W,ANDERSON R A.Estimation of formation strength from the mechanical-properties log[J].Journal of Petroleum Technology,1975,27(3):283-293.
[6] BARROW D C,LASSEIGNE C A.A field evaluation of the Mohr's Circle technique for predicting sand strength[C]∥SPE Annual Technical Conference and Exhibition.Society of Petroleum Engineers,1984.
[7] BRADFORD I D R,FULLER J,THOMPSON P J,et al.Benefits of assessing the solids production risk in a North Sea reservoir using elastoplastic modelling[C]∥SPE/ISRM Rock Mechanics in Petroleum Engineering.Society of Petroleum Engineers,1998.
[8] RAMOS G G,KATAHARA K W,GRAY J D,et al.Sand production in vertical and horizontal wells in a friable sandstone formation,North Sea[C]∥Rock Mechanics in Petroleum Engineering.Society of Petroleum Engineers,1994.
[9] GEERTSMA J.Some rock-mechanical aspects of oil and gas well completions[J].Society of Petroleum Engineers Journal,1985,25(6):848-856.
[10]何生厚,张琪.油气井防砂理论及其应用[M].北京:中国石化出版社,2003:1-228.
[11]《海上油气田完井手册》编委会.海上油气田完井手册[M].北京:石油工业出版社,1998.
[12] MORITA N,WHITFILl D L,FEDDE O P,et al.Parametric study of sand-production prediction:analytical approach[J].SPE Production Engineering,1989,4(1):25-33.
[13] MORITA N,WHITFILL D L,MASSIE I,et al.Realistic sandproduction prediction:numerical approach[J].SPE Production Engineering,1989,4(1):15-24.
[14] WILLSON S M,MOSCHOVIDIS Z A,CAMERON J R,et al.New model for predicting the rate of sand production[C]∥SPE/ISRM Rock Mechanics Conference.Society of Petroleum Engineers,2002.
[15]王彦利,陈小凡,邓生辉,等.疏松砂岩临界出砂压差的计算方法研究及应用[J].西南石油大学学报(自然科学版),2009,31(1):78-80.WANG Yanli,CHEN Xiaofan,DENG Shenghui,et al.Thecalculation method study and applicaiton of the critical sand production pressure diffrence in loose sandstone[J].Journal of Southwest Petroleum University(Science&Technology Edition),2009,31(1):78-80.
[16] OLUYEMI G F,OYENEYIN M B.Analytical critical drawdown(CDD)failure model for real time sanding potential prediction based on Hoek and Brown failure criterion[J].Journal of Petroleum and Gas Engineering,2010,1(2):16-25.
[17] ARAUJO GUERRERO E F,ALZATE G A,ARBELAEZ-LONDONO A,et al.Analytical prediction model of sand production integrating geomechanics for open hole and cased-perforated wells[C]∥SPE Heavy and Extra Heavy Oil Conference:Latin America.Society of Petroleum Engineers,2014.
[18] DIKSON O U,DAVId O O.Mchanistic models for predicting sand production:A case study of Niger delta wells[R].SPE-178279-MS,2015.
[19]石林,张旭东,金衍,等.深层地应力测量新方法[J].岩石力学与工程学报,2004,23(14):2355-2358.SHI Lin,ZHANG Xudong,JIN Yan,et al.New method for measurement of in-situ stresses at great depth[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(14):2355-2358.
[20]陈勉,周健,金衍,等.随机裂缝性储层压裂特征实验研究[J].石油学报,2008,29(3):431-434.CHEN Mian,ZHOU Jian,JIN Yan,et al.Experimental study on fracturing features in naturally fractured reservoir[J].Acta Petrolei Sinica,2008,29(3):431-434.
[21] DUSSEAULT M B,SANTARELLI F J.A conceptual model for massive solids production in poorly-consolidated sandstones[C]∥ISRM International Symposium.International Society for Rock Mechanics,1989.
[22] SUMAN G O.Uncolidated sand stabilization through wellbore stress state control[R].Paper SPE 5717.50th Annual Mtg,Dallas,1975.
[23]张景和,孙宗颀.地应力、裂缝测试技术在石油勘探开发中的应用[M].北京:石油工业出版社,2001.
[24] ROZOS D,KOUKIS G.An investigation of the mineralogical,physical and mechanical properties of Greek laterites[J].Bulletin of the International Association of Engineering Geology,1986,33(1):91-96.
[25] AL-HARTHI A A,AL-AMRI R M,SHEHATA W M.The porosity and engineering properties of vesicular basalt in Saudi Arabia[J].Engineering Geology,1999,54(3/4):313-320.
[26] BALSHIN M Y.Relation of mechanical properties of powder metals and their porosity and the ultimate properties of porous metal-ceramic materials[C]∥Dokl Akad Nauk SSSR,1949,67(5):831-834.
[27] FARQUHAR R A,SMART B G D,CRAWFORD B R.Porosity-strength correlation:Failure criteria from porosity logs[C]∥SPWLA 34th Annual Logging Symposium.Society of Petrophysicists and Well-Log Analyst,1993.
[28] RYSHKEWITCH E.Compression strength of porous sintered alumina and zirconia[J].Journal of the American Ceramic Society,1953,36(2):65-68.
[29] SMORODINOV M I,MOTOVILOV E A,VOLKOV V A.Determinations of correlation relationships between strength and some physical characteristics of rocks[J].International Society of Rock Mechanics,Proceedings,1970(1):1-19.
[30] GURSON A L.Continuum theory of ductile rupture by void nucleation and growth:Part I:Yield criteria and flow rules for porous ductile media[J].Journal of Engineering Materials and Technology,1977,99(1):2-15.
[31] TVERGAARD V.Influence of voids on shear band instabilities under plane strain conditions[J].International Journal of Fracture,1981,17(4):389-407.
[32] VEEKEN C A M,DAVIES D R,KENTER C J,et al.Sand production prediction review:developing an integrated approach[C]∥SPE annual technical conference and exhibition.Society of Petroleum Engineers,1991.
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