摘要
对目前国内外水力压裂技术近期进展作了调研，分析了高能气体压裂技术、水力喷射压裂技术、剪切压裂技术等压裂技术在近井眼区域控制裂缝起裂延伸的机理、应用范围及效果，对这些技术存在的问题进行了研究，并结合存油气田生产中的应用，指出了进一步发展的方向及需要解决的主要问题。
Development of hydraulic fracturing technique is summarized. The mechanism and application of three kinds of fracturing technology are introduced, which can control the fracture rupture and extension in near wellbore. These technology include high-energy gas fracturing technology, hydrajet fracturing technology and shear fracturing technology. The high-energy gas fracturing is a new technology, which become mature gradually in stimulation at domestic oilfields. It can manufacture several fractures which are uncontrolled by in-situ stresses. The action of stimulation of high-energy gas fracturing lies in the mechanical action, pulse shock wave action, thermal effect, chemical action. The hydrajet fracturing technology is a new method that combines hydrajetting and fracturing techniques. By using this new method, operators can position a jetting tool at the exact point where the fracture is required without using sealing elements. Unlike other techniques, this new method allows operators to place multiple fractures in the same well. The mechanism of shear fracturing technology is different from the normal hydraulic fracturing. The rock of reservoir will produce shear failure and bulk seepage will appear when this method is used. Compared with area seepage, bulk seepage has more superiority. By researching the disadvantage of these technology, the developing trends and questions related with the application in oil field are put forward.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A01期5189-5193,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
石油工程
近井眼区域
裂缝控制
高能气体压裂
水力喷射压裂
剪切压裂
petroleum engineering
near wellbore
fracture controlling
high-energy gas fracturing
hydrajet fracturing
shear fracturing
