油气地质与采收率2012，Vol.19Issue(4)：90-92,3.
底水油藏水平井水淹规律影响因素
Numerical simulation on factors affecting flooding mechanism of bottomwater reservoir in horizontal welis
尹俊禄 1赵丁楠 2东甲山 3王鹤田 3李振龙3
作者信息
- 1. 中国石油川庆钻探工程有限公司,陕西西安710018
- 2. 中国石油新疆油田分公司油气储运公司,新疆克拉玛依834000
- 3. 中国石油华北油田分公司采油工艺研究院,河北任丘062550
- 折叠
摘要
Abstract
Bottom water reservoir, often with a big water body and enough fluid supply, can supply its formation energy used in exploiting crude oil immediately by bottom water. The production rate will be seriously affected once water breakthrough in horizontal wells during the development process. Based on the numerical simulation, the relationship of horizontal section length, height of water avoidance, producing pressure drop and water breakthrough time, cumulative recovery of water-free period and water cut has been studied in this paper, and the reasonable dimensionless horizontal section length, dimensionless height of water avoidance and producing pressure drop are respectively 0.75, 0.9 and 1.0 MPa. The results show that the influence degree on water breakthrough from high to low is respectively producing pressure drop, dimensionless height of water avoidance and dimensionless horizontal section length; and the influence degree on cumulative recovery of water-free period from high to low is respectively height of water avoidance, horizontal section length and producing pressure drop. A big height of water avoidance and a small producing pressure drop and a long horizontal section length could prolong the water breakthrough time and increase the cumulative recovery of water-free period and is more beneficial to develop the bottom water reservoir.关键词
底水油藏/水平井/水淹规律/数值模拟/水平井参数Key words
bottom water reservoir/ horizontal well/ water-flooding pattern/ numerical simulation/ horizontal well parameters分类
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尹俊禄,赵丁楠,东甲山,王鹤田,李振龙..底水油藏水平井水淹规律影响因素[J].油气地质与采收率,2012,19(4):90-92,3.
