Optimization of Profile Control and Displacement Adjustment Processes in Oilfields and Their Application in Enhanced Oil Recovery
油田调剖调驱工艺优化与提高采收率应用

摘要

面对我国多数油田高含水开采现状下出现的调剖调驱技术以及油藏非均质化加重问题越来越明显，在此情况下， 调剖调驱技术通过对注入流体在地层中的流动路径进行改造，封堵高压水流通道，使液流转移到中低渗部位成为解决 水驱波及系数低以及采收率低的有效措施之一。本文详细介绍了调剖调驱对于油田开发的重要意义以及主要工艺种类， 在此基础上对参数调整、注法选择、药剂配比及动态跟踪等方面进行工艺优化技术阐述并举出实例说明了其对增加波 及系数、调整非均质状况、减小含水率及增加产量等方面的实际应用情况，为进一步实施该类油田的相关技术方法提 供借鉴依据。 

Abstract

With most oilfields in China entering a high-water-cut production stage, problems such as increasingly serious reservoir heterogeneity and ineffective waterflooding have become more prominent. Under these conditions, profile control and displacement adjustment technology has become one of the effective measures for addressing low waterflooding sweep efficiency and low oil recovery. By modifying the flow paths of injected fluids in the formation and plugging dominant water-flow channels, this technology diverts fluids toward medium- and low-permeability zones. This paper introduces the significance of profile control and displacement adjustment in oilfield development and summarizes the main process types. On this basis, it discusses process optimization technologies in terms of parameter adjustment, injection method selection, agent formulation, and dynamic performance tracking. Practical cases are also used to illustrate the application effects of this technology in increasing sweep efficiency, improving reservoir heterogeneity, reducing water cut, and increasing production. The study provides a reference for the further application of related technologies in similar oilfields.