新疆石油地质

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (5): 622-625.

• 油藏工程 • 上一篇    下一篇

气顶底水油藏中水平井双向脊进研究

伍增贵1, 孙新民2   

  1. 1.中国石油大学石油工程学院，山东东营257061;
    2.中国石化胜利油田有限责任公司现河采油厂，山东东营257068
  • 收稿日期:2008-01-27 发布日期:2020-10-19
  • 作者简介:伍增贵(1971-),男,湖北麻城人,在读博士研究生,油藏工程,(Tel)13718187681 (E-mail)wuzenggui@163.com.

A study of Dual Cresting of Horizontal Wells in Reservoirs with Gas Cap and Bottom Water

WU Zeng-gui1, SUN Xin-min2   

  1. 1. Institute of Petroleum Engineering, China University of Petroleum, Dongying, Shandong 257061, China;
    2. Xianhe Production Plant, Shengli Oilfield Company Ltd., Sinopec, Dongying, Shandong 257068, China
  • Received:2008-01-27 Published:2020-10-19

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摘要： 针对气顶底水油藏水平井开发，提出了将垂直于水平段的渗流截面分解为多个双向平面平行流，每个平面平行流又细分为上部单向气驱油、下部单向水驱油过程。通过动态分配进入到每个单向驱替过程的流量计算每个时步油气界面或者油水界面的推进过程，可以描述出任意时刻水脊、气脊的形态，也可以计算水平井在不同避水高度下的见水、见气时间。无论是水脊、气脊的形态还是见水、见气时间，计算结果与油藏数值模拟结果都具有很好的可对比性，可以用于水平井开发此类油田的动态预测。

关键词: 气顶, 底水, 水平井, 水锥, 油藏数值模拟

Abstract: A procedure is proposed to study dual cresting of horizontal wells in gas cap and bottom oil reservoir by water drive process. The seepage flow panel that is perpendicular to the lateral is divided into many bidirectional plane-parallel flow models in which gas displaces oil from above and water displaces oil from below. By dynamically allocating flow rate into each flow region, the advancing process of gas-oil contact and oil-water contact in each region is calculated in each time step. Using this method can get a whole picture of gas crest and water crest at any time before they arrive at bottomhole and calculate gas and water breakthrough time when horizontal well has different standoffs to oil-water contact. Both crest shapes and breakthrough times of gas and water are comparable with results from commercial simulator-Eclipse. It is indicated that this method can used to predict the performance of horizontal wells in reservoirs with gas cap and bottom water.

Key words: gas cap, bottom water, horizontal well, water cresting, reservoir numerical simulation

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