特高含水油藏深部调剖技术界限研究  

Technical Limits of In-depth Profile Control in Extra-high Water-cut Reservoirs

作　　者：靳彦欣[1] 史树彬[1] 付玮[2] 王涛[1] 徐鹏[1] 

机构地区：[1]中石化胜利油田分公司,山东东营257000 [2]中国石油大学,山东青岛266555

出　　处：《特种油气藏》2015年第3期77-80,154-155,共4页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项"胜利油田特高含水期提高采收率技术"子课题"整装油田特高含水期提高采收率技术"(2011ZX05011-002)

摘　　要：在分析特高含水油藏深部调剖效果变差原因的基础上，确定了影响深部调剖效果的地质因素和开发因素等技术指标，利用数值模拟方法建立了符合中、高渗透油藏地质特征的概念模型，并制订了特高含水油藏深部调剖技术界限图版。研究表明：原油黏度小于 5 mPa·s，渗透率级差小于 2 的油藏均不适合深部调剖；含水率为 90%～95%，封堵半径为 0.4～0.6 倍井距时调剖效果较好；含水率为 95%～98%，封堵半径为 0.6～0.8 倍井距时调剖效果较好。胜坨油田、温米油田和腰英台油田特高含水区块 48 个井组的调剖结果验证了深部调剖技术。Based on the analysis of low efficiency in in-depth profile control in extrahigh water-cut reservoirs,the geology and development factors relate to in-depth profile control are determined. Reservoir numerical simulation is adopted to establish the reasonable conceptual models of middle and high permeability reservoirs,and a chart of technical limits is developed for the application of in-depth profile control in extra-high water-cut reservoirs. Research shows that in-depth profile control is inapplicable to the reservoir with oil viscosity less than 5 m Pa·s and permeability ratio less than 2. Effective in-depth profile control can be gained when water-cut is 90%-95% and the plugging radius is 0. 4-0. 6 times of well spacing. Effective in-depth profile control can be achieved when water-cut is 95%-98% and the plugging radius is 0. 6-0. 8 times of well spacing. These technical limits have been verified by the application of in-depth profile control in 48 well-groups of extra-high water-cut blocks in Shengtuo,Wenmi and Yaoyingtai oilfields. This research could provide a feasible shortcut to the well-layer selection of in-depth profile control iextrahigh water-cut reservoirs.

关 键 词：特高含水 优势通道 深部调剖 数值模拟 技术界限 图版 胜坨油田 

分 类 号：TE319[石油与天然气工程—油气田开发工程]