新疆石油地质

新疆石油地质 ›› 2003, Vol. 24 ›› Issue (6): 572-573.

• 油藏工程 • 上一篇    下一篇

底水油藏水锥动态模拟及见水时间预测

唐人选   

  1. 中国石化 新星石油公司 华东石油局试采大队, 江苏 泰州 225300
  • 收稿日期:2003-02-09 出版日期:2003-12-01 发布日期:2020-08-24
  • 作者简介:唐人选(1966-), 男,江苏泰州人,工程师，硕士,油气田开发。联系电话:0523-6662552

Simulation of Water Coning Performance and Prediction of Water Breakthrough Time in Bottom-Water Reservoirs

TANG Ren-xuan   

  1. Production Test Team of Huadong Petroleum Administration Bureau, New Star Oil Company, Sinopec, Taizhou, Jiangsu 225300, China
  • Received:2003-02-09 Online:2003-12-01 Published:2020-08-24

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摘要： 基于底水油藏具有两种渗流模型的假设,即射孔段上部为水平径向流动,射孔段下部为半球状向心流动,推导出油井见水前离井轴任一半径在任一时刻的水锥高度的隐式函数,由此可确定底水的突破时间和不同时刻水锥的剖面形态。通过实例计算与实际结果的比较,见水时间的预测误差小于5%.

关键词: 底水油气藏, 水锥, 模拟, 水淹, 预测

Abstract: There are two percolation models developed for bottom-water reservoirs, i.e., the model for horizontal radial flow above perforation interval and the model for semispherical centripetal flow below perforation interval. Based on these models, implicit function for water-coning height at any time in any radius away from oil well axis before water breakthrough is derived, thus the time of bottom-water breakthrough and the section forms of water coning at different time can be determined. Also, this paper presents the comparison of computed and real results from two cases, with less than 5% of predicted error in water-breakthrough time.

Key words: bottom-water reservoir, water coning, simulation, water-breakthrough time, prediction

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