CAJ | 학술논문

花瓦地区阜二段页岩油气显示丰富，埋深较小，是裂缝性油藏勘探有利区。为深化高角度裂缝储层预测，以花瓦高精度数据为基础，以全程保幅为指导思想，开展了阜二段裂缝储层地震响应特征研究、高质量方位角道集形成分析研究、保幅叠前偏移振幅规则化研究，并对阜二页4及页5段进行了裂缝预测。研究表明，该项技术的实施，宽方位角地震数据是基础，高质量方位角道集的形成是保证，振幅相对保持处理是关键。通过选取振幅包络属性所进行的裂缝预测，其结果与实钻井吻合程度较好。
화와지구부이단혈암유기현시봉부，매심교소，시렬봉성유장감탐유리구。위심화고각도렬봉저층예측，이화와고정도수거위기출，이전정보폭위지도사상，개전료부이단렬봉저층지진향응특정연구、고질량방위각도집형성분석연구、보폭첩전편이진폭규칙화연구，병대부이혈4급혈5단진행료렬봉예측。연구표명，해항기술적실시，관방위각지진수거시기출，고질량방위각도집적형성시보증，진폭상대보지처리시관건。통과선취진폭포락속성소진행적렬봉예측，기결과여실찬정문합정도교호。
The F2 shale reservoir in Huawa area has rich hydrocarbon shows and shallow depth,and is favorable area for fracture reservoir exploration. In order to deepen the high - angle fracture reservoir prediction,based on the HW high precision 3D seismic data,under the guidance of every - step preserved amplitude,several techniques were researched, which are the seismic response of F2 fractured reservoir,building of high quality azimuth gathers,and preserved - ampli-tude pre - stack migration amplitude regulation. And then fracture prediction of Y4 and Y5 was conducted. Researches showed that the wide azimuth seismic data is the basis,the formation of high quality azimuth gather is the guarantee,and the relative amplitude preserved processing is the key. By selecting the amplitude envelope property,the fracture prediction results were in good agreement with the actual drilling results.