基于地震-复合微相分析砂体描述技术研究及应用
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摘要
渤海油田近几年新近系的开发实践表明:开发阶段该层系新增油气层多为新发现砂体,沉积特征纵向上为砂、泥互层,横向上砂、泥岩交互发育,这是由于河流改道频繁造成的储层横向连续性差;而有效解决河流相储层的"识别、刻画"成为开发的关键问题,单一的地球物理技术满足不了河流相储层的预测要求。为此,提出在高精度层序地层格架的指导下,基于地震-复合微相分析,结合测井约束反演、地震属性、地层切片等技术,联合进行储层定量预测。
According to the development effect of Neogene in Bohai Oilfiel in recent years,new hydrocarbon reservoirs are mainly the new-finding sand bodies at development stage.Sandstone and shale interbed is main sedimentary characteristics vertically and sandstone and shale develop alternately in laterally.That is caused by stream channel migration to form poor reservoir continuity.Identification and portraying of resolving fluvial facies reservoir are a key.Development practice has proved that single geophysical technology can not satisfy the prediction request of fluvial facies reservoir.This article puts forward that the quantitative prediction of reservoir,based on seismic-compound microfacies analysis and combined with logging constrained inversion,seismic attribute,formation slice,can be carried out under the conditions of high-accuracy sequence stratigraphic framework.
According to the development effect of Neogene in Bohai Oilfiel in recent years,new hydrocarbon reservoirs are mainly the new-finding sand bodies at development stage.Sandstone and shale interbed is main sedimentary characteristics vertically and sandstone and shale develop alternately in laterally.That is caused by stream channel migration to form poor reservoir continuity.Identification and portraying of resolving fluvial facies reservoir are a key.Development practice has proved that single geophysical technology can not satisfy the prediction request of fluvial facies reservoir.This article puts forward that the quantitative prediction of reservoir,based on seismic-compound microfacies analysis and combined with logging constrained inversion,seismic attribute,formation slice,can be carried out under the conditions of high-accuracy sequence stratigraphic framework.
引文
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[18]琚惠姣,孙卫,杨希濮,等.鄂尔多斯盆地延安地区山2段储层特征及其主控因素[J].断块油气田,2011,18(2):142-145.
[19]强昆生,王建民,田新文,等.志丹油田长2段沉积微相特征及其控油规律[J].断块油气田,2011,18(3):333-336.
[2]宋维琪.应用地震属性与测井数据反演储层参数[J].勘探地球物理进展,2003,26(3):216-219.
[3]王琦,李红梅.开发地震在大庆长垣喇嘛甸油田储层预测中的应用[J].石油与天然气地质,2012,33(3):490-496.
[4]陈裕明.综合多种地震信息预测预测油气富集区的一种最优化方法[J].石油勘探与开发,1994,21(4):10-14.
[5]崔永谦,秦凤启.河流相沉积储层地震精细预测方法研究与应用[J].石油与天然气地质,2009,30(5):668-672.
[6]李淑恩,张延章,温艳军,等.北大港构造浅层地震亮点与天然气勘探[J].天然气地球科学,2003,14(4):291-294.
[7]江青春,王海,李丹,等.地震波形分类技术应用条件及其在葡北地区沉积微相研究中的应用[J].石油与天然气地质,2012,33(1):135-140.
[8]王西文,刘全新,苏明军,等.滚动勘探开发阶段精细储集层预测技术[J].石油勘探与开发,2002,29(6):138-141.
[9]田鸿照,彭彩珍,于雪琳,等.水驱油田开发指标的综合预测法[J].断块油气田,2011,18(2):238-240.
[10]朱广生.地震资料储层预测方法[M].北京:石油工业出版社,1995:1-239.
[11]胡再元,陈恭洋,胡圆圆.堡子湾地区长6油层组储层沉积相研究[J].断块油气田,2008,15(6):32-36.
[12]刘钰铭,李园园,张友,等.喇嘛甸油田密井网砂质辫状河厚砂层单砂体识别[J].断块油气田,2011,18(5):556-559.
[13]陈清华,曾明,章凤奇,等.河流相储层单一河道的识别及其对油田开发的意义[J].油气地质与采收率,2004,11(3):13-15.
[14]侯加根,刘钰铭,徐芳,等.黄华坳陷孔店油田新近系馆陶组辫状河砂体构型及含油气性差异成因[J].岩相古地理,2008,10(5):459-464.
[15]伍涛,王建国,王德发,等.辫状河砂体储层沉积学研究:张家口地区露头砂体为例[J].沉积学报,1998,16(1):27-28.
[16]周总瑛,张抗.中国油田开发现状与前景分析[J].石油勘探与开发,2004,31(1):84-87.
[17]杨锋,范俊强,淡卫东,等.大路沟二区延长组长6段沉积相与沉积模式[J].断块油气田,2011,18(5):552-555.
[18]琚惠姣,孙卫,杨希濮,等.鄂尔多斯盆地延安地区山2段储层特征及其主控因素[J].断块油气田,2011,18(2):142-145.
[19]强昆生,王建民,田新文,等.志丹油田长2段沉积微相特征及其控油规律[J].断块油气田,2011,18(3):333-336.
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