倾角测井资料在前陆盆地高陡构造解释中的应用  

Application of Diplog Data to the Interpretation of High-angle Structure in Foreland Basin.

作　　者：赵军[1] 李进福[1] 张莉[1] 

机构地区：[1]塔里木油田分公司

出　　处：《测井技术》2002年第4期282-285,305,共5页Well Logging Technology

摘　　要：前陆盆地高陡构造由于长期处于挤压应力环境 ,地质构造复杂 ,地层产状变化大 ,构造样式多以逆冲断裂 褶皱复合样式为主。以地震剖面为背景 ,以单井精细构造解释为基础 ,通过测井与地震的相互标定 ,把测井地质标志投影到地震剖面上 ,同时将倾角测井得到的地层产状转化为沿剖面方向的视倾向与倾角 ,并以此为约束条件在井间对地震资料进行对比追踪 ,最终获得较高精度的构造解释剖面。该方法充分发挥了测井与地震两者的优势 ,提高了解释的精度 ,并成功地应用于塔里木盆地山前高陡构造的解释中 。The geological structure and stratigraphic attitudes of foreland basin are complicated and variable because of the continously compressed environment. The structural styles usually take the reverse thrust and fold as the dominant styles. The fine interpretation of high-angle structure can't be acquired by seismic method which is limited by itself. In this paper, on the basis of the fine log structural interpretation of single-well, through taking seismic cross-section as background and standardizing the log and seismic data each other, a method is presented to obtain the fine results. The main principles are as follow:First, according to the characteristic of high-angle structure, the single-well stuctural interpretation results can be offered by using the artificial and computerized contrast methods alternately. Then on this basis the seismic velocity can be standardized with the acoustic log data. So, the marks of log-geology are projected to the seismic cross-sections. Simultaneously, the stratigraphic attitudes got by the diplog are transformed into the apparent dip and trend, and under this restrain condition the seismic data can be contrasted and interpreted among the intervals of wells. Finally, the accurate structural section is acquired. This method uses the superiority of well log and seismology and increases the interpretation quality. It's already successfully used in TLM Basin and has reached a distinct result.

关 键 词：倾角测井资料 前陆盆地 高陡构造 塔里木盆地 石油地质 地震剖面 地层产状 构造样式 解释模型 

分 类 号：P618.13[天文地球—矿床学] P631.84[天文地球—地质学]