纳米微球调驱技术在海上水平井注水开发油田中的应用  

Nanoparticles profile modification technology applied in horizontal well development in offshore reservoir

作　　者：徐玉霞 沈明 张洁 李想 孟国平 XU Yuxia;SHEN Ming;ZHANG Jie;LI Xiang;MENG Guoping(Tianjin Branch of CNOOC, Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司天津分公司

出　　处：《能源化工》2019年第3期60-63,共4页Energy Chemical Industry

基　　金：“十三五”国家科技重大专项“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058001)

摘　　要：针对渤海A油田存在的油井含水上升快,日产油量递减快的现状,利用纳米微球调驱剂开展了水平井注水开发油田的室内研究和矿场先导试验。结果表明:经纳米微球调驱后,注水井井口压力、注水井压降与充满度、霍尔曲线及井组油井含水均有下降,纳米微球调驱能有效封堵水平井之间的水驱优势渗流通道,使后续液体产生液流深部转向,提高了水平井的波及效率,改善了水平井水驱开发效果。纳米微球调驱技术在海上水平井注水开发油田的控水稳油中具有较好的应用前景。Aiming at the present situation of water cut increases and daily oil decreases rapidly, laboratory study and field pilot test of polymer in horizontal well water injection development oilfield are carried out by using nanoparticles profile control-displacement agent. The results show that the wellhead pressure, pressure drop and fullness degree, Hall curve and water cut of well group all decrease after nanoparticles profile control and flooding. The nanoparticles profile modification technology can evidently seal the preferential seepage channel between the horizontal horizontal wells, make the subsequent liquid produce deep diversion of fluid flow, improve the sweep efficiency of horizontal wells, and also improve the development effect of water flooding in horizontal wells. Nanoparticles profile modification technology has good application prospects in water control and oil stabilizing of offshore horizontal well waterflooding oilfield.

关 键 词：纳米微球 调驱水平井 注水开发 化学驱 采收率 

分 类 号：TE39[石油与天然气工程—油气田开发工程]