InverMod反演技术在PH油气田的应用

InverMod application in PH oil/gas field

刘江 姚云霞 张雷

LIU Jiang YAO Yunxia ZHANG Lei

中海石油(中国)有限公司上海分公司, 上海 200030

Shanghai Branch of CNOOC Ltd., Shanghai 200030, China

PH油气田A油藏埋深较大,储层薄,利用常规波阻抗反演无法有效区分储层。为了能精细的描述储层,指导开发井的布井方向和井型设计,针对PH油气田A油藏的储层特点,利用Jason软件的InverMod反演技术进行储层预测。InverMod反演(测井属性反演)是一种在地质框架模型控制下,用地震资料作约束,以测井资料为主体的储层反演技术。该技术在PH油气田取得了较好的应用效果,反演结果表明A油藏储层非均质性强、横向变化快,成块状分布。储层预测结果与实钻生产井的钻探情况吻合较好,对井位优化、油藏挖潜都有一定的指导作用。

In PH oil/gas field, the oil reservoir A is thinner and deeper so that it can't be predicted by normal impedance inversion. In terms of this type of complex reservoir, InverMod is appllied to describe A reservoir distribution and design the development well grid. InverMod is a reservoir description and prediction method under the control of the geological model which is logging data oriented and constrained by seismic data. A reservoir was predicted by InverMod Inversion in PH oil/gas field. These predictions showed the strong heterogeneity and lateral variation of A reservoir. Predicted results is in good accordance with the drilled wells and have a guiding role in exploring potential and well location selection.

https://doi.org/10.3969/j.issn.1008-2336.2011.03.036