特低渗透油藏中高含水期储层水淹规律初探  

Preliminary study of law of flooded reservoirs in mid-to-high water-cut stage of extra-low permeability reservoirs

作　　者：段文标[1,2] 王靖华[1,2] 金拴联[1,2] 李花花[1,2] 雷欣慧[1,2] 李俊军[1,2] 李姝蔓 

机构地区：[1]长庆油田公司勘探开发研究院 [2]低渗透油气田勘探开发国家工程实验室

出　　处：《低渗透油气田》2014年第1期90-94,共5页

摘　　要：安塞油田三叠系长6特低渗透油藏已开发20多年，目前已进入中高含水期，生产井均不同程度见注入水。为了解目前井网条件下储层水驱波及状况，在安塞油田王窑区以注水井为中心开展检查井组解剖，通过密闭取心方法了解了中高含水期储层水淹特征及优势方向，并初步总结了影响特低渗透储层水洗程度的因素和储层微观变化特征。The extra-low permeability Triassic Chang6 reservoirs of Ansai Oilfield have been developed for more than twenty years, and entered the mid-to-high water-cut stage. All the production wells had have responses to the injected water in varying degrees. To understand the waterflooding sweep situation in reservoirs under the current well-pattern condition, analysis of the group of inspection wells in Wangyao area of Ansai Oilfield is conducted taking injection wells as the center. The features of waterflooded reservoirs and the advantage direction in the mid-to-high water-cut stage are understood through the sealed coring method, and the influencing factors of the water-flushed degree on the extralow permeability reservoirs and the microcosmic variation characteristics of the reservoirs are preliminarily summarized.

关 键 词：特低渗透油藏 中高含水期 水淹特征 储层微观变化 

分 类 号：TE122[石油与天然气工程—油气勘探]