增效射孔工艺技术现状及发展

Current Development of Combining Perforating and Propellant technique

增效射孔是国内外油田勘探开发普遍使用的一种完井方式。经过 10几年的发展 ,已经逐渐趋于完善。大量的理论和实践表明 ,增效射孔对高质量打开油气层 ,提高油气井产能有重要影响。从增效射孔技术的工艺原理、结构、输送方式、火药性能、机理研究、压力录取等多个方面对增效射孔工艺的应用现状进行了介绍。在此基础上 ,提出应该加强对工艺的完善和火药新产品的开发。通过机理研究 ,建立火药药量、结构、装配方式与井筒的各项参数的关系 ,进一步选择合适的增效射孔方式 ,建立合理的评价方式。

Combining perforating and propellant technique is a well completion method which is widely used in the exploration and production. It has been improved in ten more years of development. Many theories and practices demonstrate that it has an important impact on opening the formation of oil and gas, and improving the productivity. This article introduces the applications of this technique from the aspect of technology, structure, method of conveying, property of propellant ,research on mechanism and record of gas pressure, etc. On the basis of this, proposed is that the technique improvement and new products development should be strengthened, and relationship between the volume of propellant, propellant composition, form of assembling and wellbore should be determined, thus to select appropriate perforating method and establish proper evaluation method.