高精度重力协同地震识别潜山与断裂技术的开发应用

为配合高成熟探区的低位潜山勘探,挖掘高精度大比例尺重力的应用潜能,针对三维地震大区域捕捉低位潜山小目标的困难及其识别潜山、断裂的多解性,采用常规处理与特殊处理相结合的方法,应用特高次差值趋势面场源分离、恢复目标层背景的非线性坐标变换、凸显低位地质目标的变比例成图、拾取断裂与特殊岩体信息的随机异常成像等技术,建立了高精度重力协同地震识别潜山与断裂的处理解释流程.通过在济阳坳陷-临清坳陷,特别是沾化地区的应用,表明高精度重力在三维地震覆盖地区也可在大区域快速捕捉低位潜山以及在综合识别潜山、断裂上发挥其特殊的作用.

Development and application of recognition technology for buried hill and fractures by high precision gravimetric and seismic methods

In view of the difficulties of locating the small targets of low buried hills and ihe ambiguity of identifying buried hill and fractures in 3D seismic large regions,conventional processing and special processing were combined to adapt the low buried hills prospecting in the areas with higher exploration degree and probe the application potential of high accuracy and big scale gravimetric methods.Processing and interpretation procedure of recognizing the buried hills and fractures was established using high ...