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作 者:魏忠元[1] 卜广平[2] 路向伟[2] 李红雷[2] 李超[2] WEI ZhongYuan;BU GuangPing;LU Xiang Wei;LI HongLei;LI Chao(Exploration and Development Research Institute of PetroChina Changqing Oilfield Company;NO.6 Oil Recovery Plant of PetroChina Changqing Oilfield Company)
机构地区:[1]中国石油长庆油田分公司勘探开发研究院 [2]中国石油长庆油田分公司第六采油厂
出 处:《低渗透油气田》2018年第1期50-52,共3页
摘 要:底水油藏开发过程中,很容易受油藏性质和开发制度的影响,造成底水锥进,后期很难治理。针对新46区侏罗系油藏开发程度高、早期采油速度大、含水上升快等问题,以地质研究为基础,结合油藏工程方法,进行生产压差的优化。从整个油藏出发,把含水率划分为2个阶段,研究各个阶段含水上升率与生产压差间的相互关系,从而对不同含水率阶段的油井生产压差进行优化。Bottom-water reservoirs are easily influenced by reservoir properties and development regimes during the development process, causing the bottom-water coning, which is difficult to control later. In view of problems such as the high development degree of the Jurassic reservoirs in the Xin46 area, high oil-recovery rate in the early stage, and the rapid rise in water cut, the production pressure drop was optimized on the basis of geological study and combined with reservoir engineering methods. Starting from the entire reservoirs, the water cuts are divided into two stages. The correlation between the rising rate of the water cuts and the production pressure drop in each stage is studied so as to optimize the production pressure drop in the wells at different water cut stages.
分 类 号:TE344[石油与天然气工程—油气田开发工程]
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