高精度三维在潜江凹陷拖谢地区的实践
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摘要
根据潜江凹陷拖谢地区油气滚动开发的需要,2006年江汉物探公司对该区进行了高精度三维地震资料采集。通过采用宽方位小面元、高覆盖以及优选激发岩性等采集方法,运用复杂地表条件的观测系统变观技术,使该区次二次三维地震采集品质较以往三维地震采集资料有较大的提高,构造剖面的小断块清晰、反射波组连续性强,有利于低幅构造、小断块和岩性油藏的解释和描述。该区的地震资料采集方法值得类似勘探区域借鉴。
According to the demand for oil and gas rolling development in Tuoxie area of Qianjiang Depression,Jianghan Geophysical Prospecting Company conducted the high-precision three-dimensional seismic data acquisition in the area in 2006.The quality of Secondary 3 D seismic acquisition in this area has been improved compared with the previous data by using not only acquisition method like wide-azimuth small bin,high coverage as well as preferred shooting lithology but also various geometry technology.The small fault block is clear in structure profile.reflected wave group is strong in continuity.All these are helpful in interpreting and describing low-amplitude structure,small fault block and lithologic reservoir.The methods of seismic data acquisition in this area can be as a reference for similar exploration areas.
According to the demand for oil and gas rolling development in Tuoxie area of Qianjiang Depression,Jianghan Geophysical Prospecting Company conducted the high-precision three-dimensional seismic data acquisition in the area in 2006.The quality of Secondary 3 D seismic acquisition in this area has been improved compared with the previous data by using not only acquisition method like wide-azimuth small bin,high coverage as well as preferred shooting lithology but also various geometry technology.The small fault block is clear in structure profile.reflected wave group is strong in continuity.All these are helpful in interpreting and describing low-amplitude structure,small fault block and lithologic reservoir.The methods of seismic data acquisition in this area can be as a reference for similar exploration areas.
引文
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