阿姆河右岸区块碳酸盐岩岩性气藏勘探实践——以麦捷让构造区为例
摘要
土库曼斯坦阿姆河右岸区块过去的勘探工作以寻找构造圈闭为主,钻井成功率较低,其主要原因是未重视岩性圈闭在油气成藏过程中的重要作用。为此,以麦捷让构造区为例,通过对老井勘探情况的深入分析,提出了在该区广泛存在的构造斜坡带上寻找岩性油气藏的勘探理念;结合该区新采集的三维地震资料,利用三维地震属性分析技术、随机地震反演技术及叠前弹性反演流体检测技术,在构造斜坡带成功预测了一批碳酸盐岩岩性圈闭,并圈定出了气藏的分布范围,探井均获得成功,打开了该区的勘探局面。麦捷让构造区岩性气藏的勘探实践,可为阿姆河右岸区块其他类似构造带的勘探提供新的思路和方法。
The structural traps were regarded as the main target for the previous exploration in the Right Bank of the Amu Darya River,Turkmenistan,where the success rate of drilling had been rather low because the important role of lithologic hydrocarbon traps was ignored.In view of this,the Metajan Structure taken as a case study,a deep investigation was made into the exploration in those mature wells.Thus,an idea of searching for the lithologic hydrocarbon reservoirs in the structural slopes widely distributed in this study area was put forward.In combination with the newly collected 3D seismic data,a number of carbonate lithologic traps are successfully predicted there by use of 3D seismic attribute analysis,stochastic seismic inversion,and pre-stack elastic fluid detection.In addition,the distribution range of such gas reservoirs is delineated,and those exploration wells there have achieved success,showing a new prospect of gas exploration in this study area.This successful exploration practice in the Metajan Structure provides valuable reference for further exploration in other similar structural belts in the Right Bank of the Amu Darya River.
The structural traps were regarded as the main target for the previous exploration in the Right Bank of the Amu Darya River,Turkmenistan,where the success rate of drilling had been rather low because the important role of lithologic hydrocarbon traps was ignored.In view of this,the Metajan Structure taken as a case study,a deep investigation was made into the exploration in those mature wells.Thus,an idea of searching for the lithologic hydrocarbon reservoirs in the structural slopes widely distributed in this study area was put forward.In combination with the newly collected 3D seismic data,a number of carbonate lithologic traps are successfully predicted there by use of 3D seismic attribute analysis,stochastic seismic inversion,and pre-stack elastic fluid detection.In addition,the distribution range of such gas reservoirs is delineated,and those exploration wells there have achieved success,showing a new prospect of gas exploration in this study area.This successful exploration practice in the Metajan Structure provides valuable reference for further exploration in other similar structural belts in the Right Bank of the Amu Darya River.
引文
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[2]朱仕军,李其荣,刘旭宁,等.梁董庙构造须家河组砂岩储层地震预测研究[J].西南石油学院学报,2006,28(2):8-10.
[3]张延玲,杨长春,贾曙光.地震属性技术的研究和应用[J].地球物理学进展,2005,40(4):1129-1133.
[4]郎晓玲,彭仕宓,康洪全,等.利用多属性体分类技术预测扇三角洲砂体[J].西南石油大学学报:自然科学版,2010,32(1):65-66.
[5]王玲,张研,吴蕾,等.阿姆河右岸区块生物礁特征与识别方法[J].天然气工业,2010,30(5):30-33.
[6]王西文.精细地震解释技术在油田开发中后期的应用[J].石油勘探与开发,2004,31(6):58-61.
[7]张卫华.大牛地气田盒3段富气储层反射模式及预测[J].天然气工业,2009,29(4):33-35.
[8]费怀义,徐刚,王强,等.阿姆河右岸区块气藏特征[J].天然气工业,2010,30(5):13-17.
[9]王西文.岩性油气藏的储层预测及评价技术研究[J].石油物探,2004,43(6):511-517.
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