单井注水吞吐在塔河油田的应用  

APPLICATION OF WATER-FLOOD HUFF AND PUFF WITH SINGLE WELL IN TAHE OILFIELD

作　　者：杨亚东[1] 杨兆中[1] 甘振维 蒋海[1] 易祖坤[1] 

机构地区：[1]西南石油大学研究生院 [2]中石化西北石油局

出　　处：《天然气勘探与开发》2006年第2期32-35,共4页Natural Gas Exploration and Development

基　　金：中国石化西北局项目"塔河油田注水替油技术研究与应用"

摘　　要：在塔河油田开发生产过程中,个别油井在修井作业中出现先漏后喷的现象。在修井完成后,产量较前期有大幅增加。针对这类油井进行单井注水吞吐采油试验,研究发现钻遇定容封闭性油藏的油井适合单井注水吞吐开采。一方面利用油水重力分异,抬升油水界面,增加采出量;另一方面注水补充地层能量,恢复地层压力。该方法在塔河油田实际应用中,取得了较好的效果和较高的经济效益,也为提高定容封闭性油藏油井的采收率提供了一个较好的方法。In the exploitation process of Tahe oilfield,the phenomena of 'blowout following loss circulation' appear for some oil wells during work-over job.After the work-over job,the production increases at a big scale than before.Aiming at the oil wells,the test of water-flood huff and puff with single well is conducted for oil recovery.It is found the wells in the closed reservoir with constant volume are suitable to use water-flood huff and puff with single well for oil recovery.In one hand,the oil/water gravitational differentiation is utilized to raise the oil/water interface and increase the oil recovering volume.In the other hand,water is injected to supplement the reservoir energy and restore the reservoir pressure.Good results and economic benefits are achieved by application of the method in Tahe oilfield,and good reference is provided for the wells in the closed reservoir with constant volume to improve the recovery factor.

关 键 词：油藏 单井 注水 吞吐 采油 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程] P618.130.2[天文地球—矿床学]