Title

Computation Re search of U se less Water Inject ion
Rate

作者

王学忠

Authors

Wang Xuezhong

单位

胜利油田分公司孤东采油厂, 山东东营257237

Organization

Gudong oil Product ion P lant,
ShengliO ilf ie ld Company, SINOPEC, Dongying 257237,
China

摘要

孤东油田经过20 a高速开采后, 客观上注入水低效、无效循环比较严重, 主要是

地层大孔道窜流、注采不平衡、套管漏失、窜流、地面管线腐蚀泄漏造成的。研究发现典型注水

开发油田高含水期由驱替特征曲线确定的注水采收率略低于标定值, 这种差异主要是累积产

水量中有一部分无效产水造成的。利用这种差异性估算无效产水量, 再通过存水率找到阶段

无效产水量与无效注水量的关联指数, 实现无效注水量的估算。孤东注水区无效注水量的计

算结果与矿场分类统计数值一致, 证明该处理方法可靠程度较高。通过封堵大孔道、地面管网

改造, 减少了无效注水量。

Abstract

Gudong o ilfie ld lo ca tes at northw ard Ye llow R iver
influent- sea and be long s to conventional heavy o il river
deposit, loo se sand, ma jor w aterflood ing uncompartmenta lized
o ilfie ld. A fter 20 yea r􀀁s h igh leve l o f production, use less wa ter
injection ra te is caused by h igh- capacity channe,l in jection
im balance, casing leak-of,f channe ling, p ipeline corro sionx
leak. In a typical w ate rflooding fie ld at h igh w ater-cut stage,
w aterflood recovery factor by d isp lacem ent curve account is on
the sm all side w ith ca libra ting num er ica l value because
use less w ate r injection rate in cumu lative w ater production.
Com puta tion use lessw ate r production us ing these differences,
finds corre lation index betw een phase useless w ater production
and use less w ater in jection rate by net injection percent.
Useless w ater injection rate of Gudong w aterflood ing
developm ent block is consistent w ith lease so rt-statistic ,
w hich show s that them ethod is sim ple and useful and use less
w ater in jection rate is dim in ished by c lose o ff h igh-capac ity
channe ,l reconstruct surface line.

关键词：

无效注水量注水开发驱替特征曲线注水采收率标定;

Keywords:

U se less w ater in jection rate, W a ter
production rate, D isplacem ent curve, W a terflood recovery
factor, Ca libration.;

基金项目

DOI

无效注水量估算研究