大情字井地区葡萄花油层储层砂体地震描述技术

doi:10.13278/j.cnki.jjuese.201605304

吉林大学学报(地球科学版) ›› 2016, Vol. 46 ›› Issue (5): 1561-1570.doi: 10.13278/j.cnki.jjuese.201605304

大情字井地区葡萄花油层储层砂体地震描述技术

连晓亮¹, 郭波¹, 闫巧洁¹, 姜忠诚¹, 张昌盛²

1. 东方地球物理公司研究院地质研究中心, 河北涿州 072751;
2. 中国石油吉林油田分公司勘探开发研究院, 吉林松原 138000

收稿日期:2016-05-27 出版日期:2016-09-26 发布日期:2016-09-26
作者简介:连晓亮(1980-),工程师,主要从事地震资料解释及地震地质综合研究工作,E-mail:liandy999@sohu.com
基金资助:
中油股份公司物探技术攻关项目（B3120741HT）

Channel Sand-Bodies of Putaohua Oil-Layer Seismic Description in Daqingzijing Area

Lian Xiaoliang¹, Guo Bo¹, Yan Qiaojie¹, Jiang Zhongcheng¹, Zhang Changsheng²

1. Geologic Research Center of GRI, BGP, Zhuozhou 072751, Hebei, China;
2. Research Institute of Petroleum Exploration and Development, Jilin Oilfield Company, PetroChina, Songyuan 138000, Jilin, China

Received:2016-05-27 Online:2016-09-26 Published:2016-09-26
Supported by:
Supported by CNPC Geophysical Research Project (B3120741HT)

摘要/Abstract

摘要：

松辽盆地南部大情字井地区姚一段葡萄花油层为三角洲平原-前缘相沉积，分流河道砂体为本区主要储层类型。本文从井点出发，井震联合，利用地层切片对平原相带分流河道砂体平面展布规律进行了刻画。在三角洲前缘相带，针对储层砂体薄、横向变化快、地震响应不明显的特点，利用对比度纹理属性和基于云变换的地质统计学反演技术，精细刻画了纵波阻抗I_P≤1.11×10⁷ kg/（m²·s）、深侧向电阻率R_LLD≥15 Ω·m的河道砂体，对窄、小目标河道砂体的边界、走向及厚度进行了定量描述，储层预测符合率达83%。根据储层预测结果编制了研究区内砂岩厚度图，区内河道砂体整体走向为南西-北东向，西南物源，油气主要集中在中央断裂带河道砂体内，为断层-岩性油藏类型，反向断阶是油气有利聚集区。

关键词: 葡萄花油层, 地层切片, 对比度纹理属性, 云变换, 反向断阶

Abstract:

Putaohua oil-layer out of Member 1st of Yaojia Formation in Daqingzijing area is constituted by delta-front and delta-plain sediments. The thin thickness reservoir sand and their rapidly lateral variation result in an insignificant seismic response; thereby it is difficult to do the reservoir prediction. In this paper, based on the well point and the integration technology of well and seismic data, the distribution of the channel sand bodies are identified by using the method of strata slice. By taking the advantage of seismic texture contrast and geostatistical inversion technique based on cloud transform in the delta front belts,the channel sand bodies, longitudinal wave impedance I_P≤1.11×10⁷ kg/(m²·s), and deep lateral resistivity R_LLD≥15 Ω·m are finely described. Through a quantitative description of the boundary, strike and thickness in those target channel sand bodies that are narrow and small, the authors found that the coincidence rate attains to 83%. According to the results of reservoir prediction, the sand thickness figure in the study area is compiled. The overall strike of channel sand bodies in this area is southwest to northeast. And the provenance is from southwest. The oil and gas are mainly concentrated in the channel sand body of the central fault zone; the reservoir is a fault-lithological reservoir. The antithetic fault terrace zone is favorable for accumulation of oil and gas.

Key words: Putaohua oil-layer, strata slice, texture contrast, cloud transform, antithetic fault terrace

中图分类号:

P631.4

连晓亮, 郭波, 闫巧洁, 姜忠诚, 张昌盛. 大情字井地区葡萄花油层储层砂体地震描述技术[J]. 吉林大学学报(地球科学版), 2016, 46(5): 1561-1570.

Lian Xiaoliang, Guo Bo, Yan Qiaojie, Jiang Zhongcheng, Zhang Changsheng. Channel Sand-Bodies of Putaohua Oil-Layer Seismic Description in Daqingzijing Area[J]. Journal of Jilin University(Earth Science Edition), 2016, 46(5): 1561-1570.

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大情字井地区葡萄花油层储层砂体地震描述技术

Channel Sand-Bodies of Putaohua Oil-Layer Seismic Description in Daqingzijing Area

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