普通稠油多层火驱驱替机理及波及规律研究  

Research on Displacement Mechanism and Sweeping Performance of Ordinary Heavy Oil Multi- Layer Fire- flooding

作　　者：龚姚进[1] 户昶昊[1] 宫宇宁[1] 宋杨[1] 

机构地区：[1]中油辽河油田分公司,辽宁盘锦124010

出　　处：《特种油气藏》2014年第6期83-86,145,共4页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项"渤海湾盆地辽河坳陷中深层稠油开发技术示范工程"(2011ZX05053)

摘　　要：辽河油田深层薄互层稠油油藏具有埋藏深、纵向多层、非均质性强等特点,经多周期蒸汽吞吐开发后转火驱开采,其驱替机理和火线波及规律认识难度加大。综合物理模拟、数值模拟、动态分析等方法,研究发现普通稠油油藏在火驱中升温降黏和增压驱替、高温氧化和低温氧化同时存在,火线在平面及纵向上波及不均匀;同时对火线波及影响因素进行了研究。The deep thin- interbed heavy oil reservoir in Liaohe Oilfield is featured by large buried depth,multi- layer in vertical direction,and strong heterogeneity. Fire- flooding is implemented in this reservoir after multi- cyclic steam stimulation,making it more difficult to identify its displacement mechanism and fire- line sweeping performance. Through physical simulation,numerical simulation,and dynamic analysis,it is found that,in the fire- flooding of ordinary heavy oil reservoirs,there are all reactions of viscosity reduction by temperature increase,displacement by pressure increase,high- temperature oxidation and low- temperature oxidation,and the fire- line sweeps unevenly in plane and vertical direction. Moreover,influencing factors of fire- line sweeping are investigated.

关 键 词：火驱 氧化反应 驱油机理 波及规律 薄互层稠油油藏 D66块 

分 类 号：TE345[石油与天然气工程—油气田开发工程]