Application of Time Lapse Gravity Measurements for Oil and Gas Field Development Monitoring

V. Kolesov, K. Gareev
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Abstract

Time lapse gravity (TLG) technology for producing oil and gas field control involves periodic high precision gravimetric and geodetic measurements at the area of a developed field. The technology targets the following geological and technological challenges: improvement of field development control by adding independent information from gravimetric variations and finding its relationships with fluid saturation variations in the reservoir;prediction GOC or GWC shifting according to gravity data;precise surface elevation control in time (geodynamics). TLG is considered as a significant part of the integrated field development control workflow and provides important independent information to be means added to time lapse well log measurements, production data and time lapse seismic where applicable. The paper describes the methodological basics, provides some results of TLG implementation at a large gas field and estimates of gravity variations during production from a real oil field with a gas cap, which shows the feasibility of TLG application.
时移重力测量在油气田开发监测中的应用
用于油气田生产控制的时移重力(TLG)技术涉及在已开发油田区域进行周期性高精度重力和大地测量。该技术针对以下地质和技术挑战:通过添加来自重力变化的独立信息并发现其与储层流体饱和度变化的关系来改善油田开发控制;根据重力数据预测GOC或GWC移动;精确的地面高程及时控制(地球动力学)。TLG被认为是综合油田开发控制工作流程的重要组成部分,它提供了重要的独立信息,可以添加到时移测井测量、生产数据和时移地震数据中。本文介绍了TLG的基本方法,给出了在大型气田实施TLG的一些结果,并对具有气顶的实际油田生产过程中的重力变化进行了估计,表明了TLG应用的可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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