古708区块地层原油烟道气驱细管实验  

SLIM TUBE EXPERIMENT ON THE FLUE GAS DRIVE IN THE OIL RESERVOIRS OF GU708 BLOCK

作　　者：张江[1] 郭庆军[1] 肖鲁川[1] 刘勇[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2013年第1期125-127,共3页Petroleum Geology & Oilfield Development in Daqing

基　　金：“十一五”国家科技支撑计划项目“CO2气驱提高采收率试验研究”（2006BAB03B06）.

摘　　要：为了探索大庆外围低渗透油层有效动用方法，以低渗透油藏古708区块为例，进行了烟道气驱地层原油细管实验。结果表明，随着注气量的增加，原油采收率增大，在同样注气量下，注入压力提高，地层原油采收率增高，烟道气驱表现为非混相驱。注气量达到0．3PV后，气体突破，生产气油比上升明显，注入压力越大，突破后生产气油比上升越快。In order to search for an effective developing method for the low-permeability oil reservoirs in Daqing peripheral oilfields, taking Gu708 Block as an example, the slim tube test by flue gas oil driving is conducted. The results indicate that the more the injected volume, the higher recovery factors are; under the condition of the same volume of the injected flue gas, the higher the injected pressure, the greater the ultimate recovery will be. In fact, the flooding belongs to immiscible displacement. After injecting 0. 3PV gas volume, the gas begins break through and the produced gas oil ratio rapidly increases, the higher the injected pressure, the greater the ratio will be.

关 键 词：古708区块 低渗透 烟道气驱 细管实验 非混相驱 

分 类 号：TE357[石油与天然气工程—油气田开发工程]