海上低渗油田压驱工艺发展现状及应用趋势  

Development status and application trends of pressure-driven process in offshore low permeability oilfields

作　　者：彭建峰 范远洪 吴绍伟 段宝江 劳文韬 PENG Jianfeng;FAN Yuanhong;WU Shaowei;DUAN Baojiang;LAO Wentao(Zhanjiang Branch of CNOOC(China)Limited,Zhanjiang 524057,China;Ener Tech-Drilling&Production Co.,CNOOC Energy Development Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]中海油能源发展股份有限公司工程技术分公司,天津300452

出　　处：《复杂油气藏》2025年第1期109-116,共8页Complex Hydrocarbon Reservoirs

摘　　要：随着勘探开发的不断推进,海上低渗油田开始普遍采用“注-压-焖-采”一体化压驱工艺技术,并取得了一定成果,成为海上目前有效的工艺技术之一。压驱是增产增注工艺、常规水驱或化学剂驱、焖井渗吸相结合而形成的一整套连续油藏开发的施工工艺。为了提高中国海上低渗油田的开发效益,有必要归纳和总结压驱技术方面的研究成果及实施经验。通过总结陆上及海上压驱地质特征、工艺参数、作业方式,结合国内外压驱技术动态研究进展,分析当前压驱技术与常规压裂技术的区别,包括压驱作用机理、设计原则方法以及应用效果;同时以海上地质条件为物理背景,建立压驱裂缝延伸流固耦合有限元模型,开展单因素影响下的压驱规模敏感性分析;最后剖析海上低渗储层改造面临的地质-工程一体化问题,并展望未来海上实施压驱的技术攻关方向,助推海上低渗油田开发降本增效。With the continuous advancement of exploration and development,offshore low-permeability oilfields are widely using the integrated pressure-drive technology of“injection-pressure-stewing-recovering”,which has achieved certain results and become one of the most effective technologies in the sea.Pressure drive is a set of continuous reservoir development construction technologies formed by the combination of production increase and injection process,conventional water drive or chemical agent drive,and well percolation in stewed wells.In order to improve the development efficiency of offshore low-permeability oilfields in China,it is necessary to summarize the research results and implementation experience of pressure-drive technology.In this paper,by summarizing the geological characteristics,process parameters,and operation methods of onshore and offshore fracturing,combined with the dynamic research progress of domestic and international fracturing technology,analyzes the difference between the current fracturing technology and conventional fracturing technology,the mechanism of fracturing,the design principles and methods,and the application effect.At the same time,this paper takes the offshore geological conditions as the physical background,establishes the finite-element model of the fracture extension fluid-solid coupling of fracturing,and carries out the sensitivity analysis of the scale of fracturing under the influence of a single factor.Finally,it analyzes the geological-engineering integration problems faced by offshore low-permeability reservoir transformation,and looks forward to the direction of the future development of offshore implementation of fracturing,which helps promote the development of offshore low-permeability oilfields to reduce the cost and increase efficiency.

关 键 词：海上低渗油田 压驱 流固耦合 有限元 焖井 

分 类 号：TE348[石油与天然气工程—油气田开发工程]