垦西油田垦622井区岩性油藏开发技术研究  

A research for the development technology of lithologic oil reservoir in Wellblock Ken-622 of Kenxi oil feild.

作　　者：毕秋军[1] 张本华[1] 杨晓敏[1] 

机构地区：[1]胜利石油有限公司孤岛采油厂

出　　处：《石油勘探与开发》2001年第2期70-72,共3页Petroleum Exploration and Development

摘　　要：垦西斜坡带垦６２２井区沙三中油层是一个构造岩性复合油藏，地质条件比较复杂，影响油田开发的因素较多，开发难度较大。为了进行合理、高效开发，针对其油藏特点充分应用波阻抗反演等新技术追踪描述砂体；借助现代试井手段研究油藏的特征；利用数值模拟技术开展了经济合理的并网密度、最佳的地层压力保持水平、注水方式选择和初期采油速率优化等机理研究。开发方案在现场实施后，取得了理想效果，所部署的８口开发井均达到了设计目的，实际钻遇砂体厚度与预测砂体厚度相比，平均误差仅为６％；开发方案实施一年来，井区平均日产油水平２２５ｔ，实际生产结果与开发技术研究结果吻合程度较高，经济效益显著。可为今后同类岩性油气藏的开发提供参考。图３表１参３（毕秋军摘）The central Es3 oil reservoir in Wellblock Ken-622, Kenxi Slope area, is a lithologico- structural composite reservoir that is rather complicated in geologic conditions, which is much difficult to be exploited for many factors constrained. In order to exploit it rationally and reasonably, the authors take advantages of the technology of wave impedance inversion, modern method of well testing and numerical simulation to trace and describe sandbody, reason out the characteristics of oil reservoir and perform research of economic and reasonable well pattern arrangement, suitable maintaining level of formation pressure, selection of water injection and optimization of initial oil production rate etc. The technology the authors mentioned in this paper would help the engineers to make scientific policy decision in development program design. After this method being carried out in practical field trial, there appear somewhat perfect effects-each development well of total 8 reaches its design requirement without exception, and compared with the predictive thickness of sandbody, the average thickness error would be 6%. Remarkable economic benefit has been achieved since this development program was put into effect one year ago, the real production results very much tallies with that from research, now the daily oil production of the wellblock has been reached 255t/d, which shows that it can be considered as a reference for developing similar lithologic oil reservoirs.

关 键 词：垦西油田 垦622井区 岩性油藏开发 地质特征 

分 类 号：TE349[石油与天然气工程—油气田开发工程]