孔隙型碳酸盐岩油藏Hall曲线特征研究与应用
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摘要
伊拉克AH油田孔隙型碳酸盐岩油藏储层类型复杂,储集空间以孔隙型为主,局部发育溶蚀孔缝,非均质性较强。针对该油藏注水开发过程中存在的部分采油井快速水窜、注水井注入压力高等问题,采用Hall曲线特征研究方法,对不同储层类型的Hall曲线响应特征进行分类分析,得到了5种类型的Hall特征曲线。并应用此方法分析了同一井组在不同注水阶段的Hall曲线变化特征,采取了针对性的措施改善注水开发效果。本研究对同类型油藏深化储层特征认识、快速制定注采调整措施及改善注水开发效果具有一定的指导意义。
The AH oilfield is a porous carbonate reservoir which has complex reservoir type in Iraq. The reservoirspace is mainly pore type,while fracture and vug developed in the local area,and the heterogeneity is strong. Thewater increased rapidly of producer and the high injection pressure of injector occurred in waterflooding development process. Use Hall plot to make different reservoir characteristics classification because the Hall plot showsdifferent performance characteristics in the waterflooding development process. Based on this classification analysis,summarizes the 5 different types of characteristic curves,and apply this method to analyze the same injectiongroup characterized change at different stages that is helpful to improving water drive effect. This research provides a reliable evidence for evaluation of water flooding effection,and the high permeability prediction. And it is aguiding significance for improve development effective and geological understanding and the further injection plan.
The AH oilfield is a porous carbonate reservoir which has complex reservoir type in Iraq. The reservoirspace is mainly pore type,while fracture and vug developed in the local area,and the heterogeneity is strong. Thewater increased rapidly of producer and the high injection pressure of injector occurred in waterflooding development process. Use Hall plot to make different reservoir characteristics classification because the Hall plot showsdifferent performance characteristics in the waterflooding development process. Based on this classification analysis,summarizes the 5 different types of characteristic curves,and apply this method to analyze the same injectiongroup characterized change at different stages that is helpful to improving water drive effect. This research provides a reliable evidence for evaluation of water flooding effection,and the high permeability prediction. And it is aguiding significance for improve development effective and geological understanding and the further injection plan.
引文
[1]伏美燕,刘榧,邓虎成,等.AHDEB油田白垩系油藏油气充注期次的流体包裹体证据[J].中国地质大学学报,2015,40(7):1187-1196.
[2]王曦莎,易小燕,陈青,等.缝洞型碳酸盐岩井间连通性研究—以S48井区缝洞单元为例[J]岩性油气藏,2010,22(1):126-133.
[3]Hawe,Daniel E.Direct approach thought Hall plot evaluation improves the accuracy of formation damage calculations and eliminates pressure fall-off testing[J].SPE 5989,1976.
[4]Ojukwu,Van den Hoek.A new way to diagnose injectivity decline during fractured water injection by modifying conventional Hall analysis[J].SPE 89376-MS,2004.
[5]Silin,Holtzman.Waterflood surveillance and control:incorporating Hall plot and slope analysis[J].SPE 95685-MS,2005.
[6]Amedu,Nwokolo.Improved well and reservoir production performance in waterflood reservoirs-revolutionizing the Hall plot[J].SPE 167602-MS,2013.
[7]Moffitt,Paul D.Well injection tests of non-newtonian fluids[J].SPE 7177-MS,1978.
[8]Buell,R.S.Analyzing injectivity of polymer solutions with the Hall plot[J].SPE 16963-PA,1990.
[9]Jarrel,P.M.Maximizing injection rates in wells recently converted to injection using Hearn and Hall plots[J].SPE21724-MS,1991.
[10]雷芳菲,贺成才.岩石压缩系数的计算及其对气藏数值模拟结果的影响研究[J].岩性油气藏,2009,21(3):134-137.
[11]刘彦成,李云鹏,蒋曙鸿,等.Hall曲线在渤海油田热采井中的应用[J].中国海上油气,2013,25(5):43-45.
[2]王曦莎,易小燕,陈青,等.缝洞型碳酸盐岩井间连通性研究—以S48井区缝洞单元为例[J]岩性油气藏,2010,22(1):126-133.
[3]Hawe,Daniel E.Direct approach thought Hall plot evaluation improves the accuracy of formation damage calculations and eliminates pressure fall-off testing[J].SPE 5989,1976.
[4]Ojukwu,Van den Hoek.A new way to diagnose injectivity decline during fractured water injection by modifying conventional Hall analysis[J].SPE 89376-MS,2004.
[5]Silin,Holtzman.Waterflood surveillance and control:incorporating Hall plot and slope analysis[J].SPE 95685-MS,2005.
[6]Amedu,Nwokolo.Improved well and reservoir production performance in waterflood reservoirs-revolutionizing the Hall plot[J].SPE 167602-MS,2013.
[7]Moffitt,Paul D.Well injection tests of non-newtonian fluids[J].SPE 7177-MS,1978.
[8]Buell,R.S.Analyzing injectivity of polymer solutions with the Hall plot[J].SPE 16963-PA,1990.
[9]Jarrel,P.M.Maximizing injection rates in wells recently converted to injection using Hearn and Hall plots[J].SPE21724-MS,1991.
[10]雷芳菲,贺成才.岩石压缩系数的计算及其对气藏数值模拟结果的影响研究[J].岩性油气藏,2009,21(3):134-137.
[11]刘彦成,李云鹏,蒋曙鸿,等.Hall曲线在渤海油田热采井中的应用[J].中国海上油气,2013,25(5):43-45.