地球物理学进展 ›› 2017, Vol. 32 ›› Issue (2): 822-826.doi: 10.6038/pg20170250

• 应用地球物理学Ⅰ • 上一篇    下一篇

胜利滩海地区新近系河流相储层描述技术发展与趋势

张明振   

  1. 中石化胜利油田物探研究院, 东营 257022
  • 收稿日期:2016-08-15 修回日期:2017-01-16 出版日期:2017-04-20 发布日期:2017-04-20
  • 作者简介:张明振,1967年生,男,山东潍坊人,博士,高级工程师,从事地震勘探的综合研究工作.(E-mail:wtzmz@163.com)

Development and tendency of techniques for fluvial reservoir description in Shengli shallow beach sea

ZHANG Ming-zhen   

  1. Shengli Geophysical Reserch Institute of SINOPEC, Dongying 257022, China
  • Received:2016-08-15 Revised:2017-01-16 Online:2017-04-20 Published:2017-04-20

摘要:

新近系河流相砂岩是胜利滩海地区主要的储层,储层描述是实现高效勘探开发的有效途径.本文根据滩海地区岩性油藏勘探的历程,分不同阶段表述储层描述技术特点.探索阶段,应用三维地震水平切片技术发现了“人”字形河道砂体,钻探后首次发现了河流相岩性油藏.发展阶段,组合相干数据体切片、三维立体显示和分频扫描等形成了单砂体储层描述技术,使岩性油藏勘探快速发展,但也出现了砂体漏判、误判问题.完善阶段,应用河流沉积微相有序分布特征,提取地震属性参数由沉积微相控制描述储层,提高了精度.油气检测阶段,研究储层含不同流体的地震响应特征,应用叠前、叠后地震属性预测含油气性也取得了较好的效果,但对于薄互层,预测精度不高.对此,进一步提出了针对薄互层的叠前储层描述和油气检测的发展趋势.

Abstract:

The Neogene fluvial sandstone is the main reservoir in Shengli beach area, reservoir description is a way to achieve efficiently and effectively exploration and development. Based on the history of lithologic reservoir exploration in beach area, the techniques for reservoir description at different stages are characterized. During exploration stage, horizontal slice technology was applied to find a "λ" shaped channel through 3D seismic data, the fluvial lithology reservoir was first time discovered after drilling. During development stage, a series of techniques, such as the coherent data volume slice, the 3D display and frequency scanning were used to describe an individual sand body for channel sandbodies, as a result lithologic fluvial sandbodies exploration developed rapidly, but also individual was lost to be described or was leak to be as a sandbody. During the perfect stage, the channel reservoir was described through multiple seismic attributes extracted controlled by fluvial facies according to fluvial depositional microfacies to improve the accuracy of the reservoir identification. During hydrocarbon detection stage, the reservoir bearing-fluid could be predicted through post-stack data and pre-stack data according to difference seismic response characteristics resulted from reservoir bearing-fluid, and the effect obtained were better. But for the thin interbed, the accuracy predicted was not high. For this, put forward the development trend of prestack reservoir prediction and hydrocarbon detection.

中图分类号: