石油与天然气地质 ›› 1983, Vol. 4 ›› Issue (4): 431-440.doi: 10.11743/ogg19830411

• 论文 • 上一篇    

地质模型的地震模拟及桩西—五号桩地区沙三段砂体预测

吕春宇, 杨新民, 马玉西   

  1. 胜利油田地质科学研究院
  • 收稿日期:1982-04-29 出版日期:1983-12-25 发布日期:2012-01-16

SEISMIC MODELLING OF GEOLOGICAL PATTERNS AND PROGNOSIS OF Es3 SAND BODIES IN WUHAOZHUANG-ZHUANGXI AREA

Lu Chunyu, Yang Xinmin, Ma Yuxi   

  1. Geological Research Institute of Shengli Oil Field
  • Received:1982-04-29 Online:1983-12-25 Published:2012-01-16

摘要:

七十年代以来,人工地震的野外施工和室内处理技术都有了重大发展,人们不仅可借以认识地下地质体的外貌,而且还可对地质体的内部结构进行探讨。这就为油气勘探提供了有关区域格架、地层序列、断挠剥超乃至储集体的展布、圈闭和含油气性等更为丰富的信息。胜利油田自1978年从合成声波测井剖面开始,相继开展了三瞬剖面、最大熵反褶积、地震模型剖面等一系列的处理方法研究。采用区域地震地层学为主的综合解释方法,对济阳坳陷梁家楼河道砂、六户一牛庄的三角洲前缘砂坝和浊积岩体、沿岸砂体、冲积一洪积岩体等砂岩储集层的分布预测,提出过有效的见解,满足了勘探的一定需要。但由于地震反射的复杂性和地震地层解释的多解性,对许多地质现象仍然认识不清。为了解决这个问题,除尚须改进野外施工和处理方法外,我们认为,从根本上认识各类地质体的基本反射特征,建立比较系统的、适合于探区地质实况的沉积反射模式,使室内试验与野外记录密一切结合,充分利用钻井、电测资料,开展综合解释,是解决预测不准,使地震地层学用于勘探非背斜油气藏,寻找中小砂岩体的行之有效的方法。为此,充分利用现代地震模拟技术,开展陆相湖盆地震相的研究,对于地震地层学的理论及其使用,都有重要意义。桩西一五号桩地区沙三段砂体的预测,是用地震模拟技术及其它地震特殊处理方法进行综合解释的一个初步实践。

Abstract:

The seismic reflection characteristics were analysed for several morphological patterns common in lacustrine sand bodies by means of the seismic analogue technique and experimental work has been carried out for prospecting medium to small sand bodies in Wuhaozhuang-Zhuangxi area of Jiyang depression,using seismic stratigraphic method.In this article,more detailed diseription is given of the seismic analogue profiles,the waveform characteristics and reflection structure of the medium and small sized sand bodies obtained from these sections,such as horizontal stacking,stacked offset,synthetic sonic logging,deconvolution and the like recorded in this area have been also discribed in detail.Meanwhile,in respect to exploration of non-anticlinal reservoirs,prognosis of distribution trend of sand bodies in middle and lower parts of member Es3 of present area has been made in combination with data on geology,drilling and seismic stratigraphy,etc.,and their oil and gas potential has also been evaluated.