永安油田永66块油藏精细开发地质研究及效果
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摘要
针对胜利油田的大多数区块已处于开发中后期的现状,寻求通过对老区进行精细的开发地质研究以达到增储上产的目的研究方法,本次研究通过对永66块的详细解剖,提出了地层等时精细化—构造微型化—储层针对化的开发地质研究方法。首先以小层划分为基础对地层进行细分,对沉积时间单元进行分析,充分对研究区内的地层进行研究;通过开发三维地震的解释,对砂层组顶面构造进行分析,再利用开发井分层数据,对小层顶面微构造进行研究;通过针对沉积微相、隔夹层以及储层非均质性的分析对储层进行研究,并在永66断块取得了良好效果。
In this paper,because most of the reservoirs in Shengli oilfield developed in mid-later stage,we want to find a kind of method to increase the reserves and add the produce,by fine researching development geology.And in this research,through the research of the Yong 66 fault-block,we submitted the method of fine stratigraphic classification,microminiaturize structure and oriented research of reservoirs.First,the strata was subdivided on the base of the subzone classification,and analyzed the sedimentary time unit,researched the strata in work area.By the three-dimensional interpretation,we analyzed the structure of the Member superface,and used the individual layer data of development well,researched the microtectonics of the subzone.Last,we researched the reservoir characteristic by analyzing the sedimentary microfacies,barrier bed,and reservoir heterogeneity.And favorable effectiveness was obtained.
In this paper,because most of the reservoirs in Shengli oilfield developed in mid-later stage,we want to find a kind of method to increase the reserves and add the produce,by fine researching development geology.And in this research,through the research of the Yong 66 fault-block,we submitted the method of fine stratigraphic classification,microminiaturize structure and oriented research of reservoirs.First,the strata was subdivided on the base of the subzone classification,and analyzed the sedimentary time unit,researched the strata in work area.By the three-dimensional interpretation,we analyzed the structure of the Member superface,and used the individual layer data of development well,researched the microtectonics of the subzone.Last,we researched the reservoir characteristic by analyzing the sedimentary microfacies,barrier bed,and reservoir heterogeneity.And favorable effectiveness was obtained.
引文
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[10]侯建国,高建,张志龙,等.五号桩油田桩74断块特低渗砂岩油藏微构造模式及其开发特征[J].石油大学学报,2005,29(3):1~4.
[2]陈清华,吴孔友,王绍兰.永安镇油田构造特征[J].石油大学学报(自然科学版),1998,22(5):23~25.
[3]张春生,赖志云,李春光.永安镇油田沙四段冲积扇一扇三角洲沉积[J].地球科学一中国地质大学学报,1995,20(1):95~100.
[4]陈清华,王绍兰.永安镇油田构造沉积特征与油气关系[J].岩相古地理,1998,18(3):14~20.
[5]李兴国.油层微型构造影响油井生产的控制作用[J].石油勘探与开发,1987,14(2):53~59.
[6]李兴国.应用微型构造和储层沉积微相研究油层剩余油分布[J].油气采收率技术,1994,1(1):68~80.
[7]陈清华,李阳.曲流河储层微型构造图编制的新方法[J].油气地质与采收率,2005,12(4):17~19.
[8]章凤奇,陈清华,陈汉林.储集层微型构造作图新方法[J].石油勘探与开发,2005,32(5):91~93.
[9]李继红,陈清华.孤岛油田馆陶组油层微型构造研究[J].西北地质,2001,34(2):54~58.
[10]侯建国,高建,张志龙,等.五号桩油田桩74断块特低渗砂岩油藏微构造模式及其开发特征[J].石油大学学报,2005,29(3):1~4.
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