溶剂辅助重力泄油注入压力试验  

Experiment on injection pressure of vapor extraction process

作　　者：杨滨[1,2] 姜汉桥[1] Yongan GU 

机构地区：[1]中国石油大学石油工程教育部重点实验室,北京102249 [2]Petrolenm Technology Research Centre (PTRC), University of Regina, Canada,S4S 0.A2

出　　处：《中国石油大学学报（自然科学版）》2009年第6期77-81,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：加拿大萨省石油技术研究中心基金项目(001-00140-UofR)

摘　　要：为评价不同注入压力下丙烷抽提稠油能力,通过物性试验和流动试验,评价不同注入压力下稠油和丙烷体系的物性参数和泄油能力。结果表明:低于丙烷饱和蒸气压时,注入压力越大,丙烷在稠油中的溶解度越大,稠油降黏效果越明显,泄油能力极值点出现在丙烷饱和蒸气压附近,之后泄油能力开始降低;在丙烷饱和蒸气压时泄油速度出现大幅变化,丙烷溶解度和稠油降黏幅度变化不大,泄油速度增加是沥青结晶在起主要作用。In order to evaluate heavy oil extraction ability of propane, the physical properties and drainage capacity of heavy oil and propane system were measured in different injection pressure through physical property and flow experiments. The resuits show that the solubility of propane in heavy oil increases and heavy oil viscosity decreases with the injection pressure increasing when the injection pressure is lower than propane saturated pressure. And the extreme value of drainage capacity arises near the propane saturated pressure, and then the value of drainage capacity decreases. The production rate changes greatly at propane saturated pressure while propane solubility and heavy oil viscosity reduction have little change, and the production rate increasing is resulted from asphaltene deposition.

关 键 词：稠油 溶剂辅助重力泄油 试验评价 丙烷溶剂 

分 类 号：TE345[石油与天然气工程—油气田开发工程]