清水压裂工艺技术综述  

RIVERFRAC TREATMENT

作　　者：王素兵[1] 

机构地区：[1]四川石油管理局井下作业公司

出　　处：《天然气勘探与开发》2005年第4期39-42,共4页Natural Gas Exploration and Development

摘　　要：裂缝的有效性是压裂增产效果好坏的决定性因素。长期以来压裂改造一直围绕提高裂缝的有效性开展工作,力求减少残渣对支撑裂缝的伤害,为此清水压裂随之而兴起。近年来,国外已经在低渗透油气藏中,成功的应用了清水压裂进行施工,并且作了大量的实验和理论研究,结果证明与传统的冻胶压裂相比,在低渗透气藏中清水压裂能产生更好的增产效果,且施工成本明显比传统的冻胶压裂的施工成本低得多。文中在调研国外清水压裂相关文献的基础上,研究了清水压裂的发展历程、增产机理、清水压裂的主要特点、适用范围以及清水压裂的工艺、设计技术。同时介绍了混合清水压裂工艺技术作为清水压裂工艺的延伸与清水压裂技术的不同,列举了四川某口清水压裂应用井作为应用佐证。该工艺技术在国内应用于同类储层以及对同类储层的改造具有重要的参考价值。Fracture validity is a key factor to control fracturing stimulation.Increasing the validity and reducing a damage of support fracture from bottom,sludge is the main work all through the fracturing treatment.So,riverfrac treatment prevails recently.The treatment has been successfully applied in low-permeability reservoirs in foreign countries.A lot experiments and researches have been carried out.It is shown that riverfrac treatment is better for stimulation in low-permeability reservoirs and cost is obviously much lower,compared with traditional gelled fracturing.In this paper,we introduced rvierfrac treatment's development,design technology,stimulation mechanism,main characteristics and application,based on foreign literature on riverfrac treatment.In addition,we presented the difference between riverfrac treatment and the mixed riverfrac treatment,an extension of the former.We applied the treatment to a field example in Sichuan.In a word,the technique is important for application and treatment in the same reservoir.

关 键 词：清水压裂液 裂缝 增产措施 工艺技术 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]