井震结合井旁构造随钻跟踪解释方法及其应用
摘要
塔里木盆地库车山前高陡构造带的复杂性造成了地震成像的困难和解释的多解性,增大了勘探风险。在中途钻井过程中,首先利用井壁成像测井和地层倾角测井资料确定井点处构造特征,标定过井地震剖面,然后对井旁构造进行跟踪解释,确定钻井所在构造部位,判断地震构造解释真伪,分析测井井筒构造与地震构造解释产生矛盾的原因,及时对地震解释参数进行优化或为调整井位提供依据,从而最大程度地降低勘探风险。图6表1参8
The extremely complicated geological conditions in the Kuqa foreland basin,Tarim have brought great difficulties in seismic prospecting and resulted in a high risk in oil and gas exploration.Aimed at the difficulties,a new method is put forward which include the following steps: determining geological structures based on the appropriate data-processing and geological interpretation of Dip Log and Borehole Imaging Log in the course of drilling,performing interpretation while drilling for the geological structures of the well location,predicting the well-reached local structural position by integrating logging and seismic data,analyzing the contradiction between logging well-bore and seismic structures,and timely optimizing the parameters for seismic data processing or adjusting the well position to reduce the exploration risk to the minimum level.
The extremely complicated geological conditions in the Kuqa foreland basin,Tarim have brought great difficulties in seismic prospecting and resulted in a high risk in oil and gas exploration.Aimed at the difficulties,a new method is put forward which include the following steps: determining geological structures based on the appropriate data-processing and geological interpretation of Dip Log and Borehole Imaging Log in the course of drilling,performing interpretation while drilling for the geological structures of the well location,predicting the well-reached local structural position by integrating logging and seismic data,analyzing the contradiction between logging well-bore and seismic structures,and timely optimizing the parameters for seismic data processing or adjusting the well position to reduce the exploration risk to the minimum level.
引文
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[7]王晓锋,刘文汇,徐永昌,等.塔里木盆地库车山前构造带地应力分布特征[J].石油勘探与开发,2005,32(3):55-58.(WANG Xiao-feng,LIU Wen-hui,XU Yong-chang,et al.Natural gas carbonand hydrogen isotopic compositions in Tarim Basin,NW China[J].Petroleum Exploration and Development,2005,32(3):55-58.)
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[2]赵军,宋帆.塔里木盆地低电阻率油层成因分析与评价[J].石油勘探与开发,2004,31(6):69-71.(ZHAO Jun,SONG Fan.Geneticanalysis and evaluation of low resistivity oil formation in TarimBasin[J].Petroleum Exploration and Development,2004,31(6):69-71.)
[3]罗金海,周新源,邱斌,等.塔里木盆地西部中、新生代5次构造事件及其石油地质学意义[J].石油勘探与开发,2005,32(1):18-22.(LUO Jin-hai,ZHOU Xin-yuan,QIU Bin,et al.Mesozoic-Cenozoic five tectonic events and their petroleum geologicsignificances in west Tarim Basin[J].Petroleum Exploration andDevelopment,2005,32(1):18-22.)
[4]申银民,孙玉善,顾桥元,等.塔里木盆地哈得逊地区下石炭统薄层砂体沉积层序与砂体预测[J].石油勘探与开发,2005,32(2):43-45.(SHEN Yin-min,SUN Yu-shan,GU Qiao-yuan,et al.LowerCarboniferous sediment sequence and sandbody forecasting in Hadearea,Tarim Basin[J].Petroleum Exploration and Development,2005,32(2):43-45.)
[5]赵孟军,王招明,宋岩,等.塔里木盆地喀什凹陷油气来源及其成藏过程[J].石油勘探与开发,2005,32(2):50-54.(ZHAO Meng-jun,WANG Zhao-ming,SONG Yan,et al.Source and accumulation ofoil and gas in Kashi Sag,Tarim Basin,NW China[J].PetroleumExploration and Development,2005,32(2):50-54.)
[6]何登发,贾承造.冲断构造与油气聚集[J].石油勘探与开发,2005,32(2):55-62.(HE Deng-fa,JIA Cheng-zao.Thrust tectonics andhydrocarbon accumulation[J].Petroleum Exploration andDevelopment,2005,32(2):55-62.)
[7]王晓锋,刘文汇,徐永昌,等.塔里木盆地库车山前构造带地应力分布特征[J].石油勘探与开发,2005,32(3):55-58.(WANG Xiao-feng,LIU Wen-hui,XU Yong-chang,et al.Natural gas carbonand hydrogen isotopic compositions in Tarim Basin,NW China[J].Petroleum Exploration and Development,2005,32(3):55-58.)
[8]曾联波,王贵文.塔里木盆地库车山前构造带地应力分布特征[J].石油勘探与开发,2005,32(3):59-60.(ZENG Lian-bo,WANGGui-wen.Distribution of earth stress in Kuche thrust belt,TarimBasin[J].Petroleum Exploration and Development,2005,32(3):59-60.)
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