新型树脂涂层支撑剂

A NEW-TYPE RESIN COATED PROPPANT

左涟漪 马久岸

Zuo Lianyi Ma Jiuan

江汉石油学院

本文简单介绍了从70年代中期开始,西方国家研制、使用树脂涂层支撑剂的概况。由于该类支撑剂克服了传统支撑剂砂及陶粒固有的缺点,不仅防止了支撑剂被压碎及吐出的现象,也减少了支撑剂嵌入地层的弊病。另外,使用该类支撑剂还可防止细粉的运移,因此在较高的闭合应力下也能使裂缝保持较好的长期渗透率。目前美国许多油田已大量使用这类支撑剂以代替砂及陶粒。文中通过室内评价及现场使用实例说明它在水力压裂作业中的效果比传统支撑剂好,对油田增产作用显著。经济效益分析表明,它是一类最经济、合理很有发展前迫的新型水力压裂支撑剂。

The general situations about of resin-coated proppants that have been developed and used in the Western countries since the middle of 1970 are introduced in this paper.This kind of proppant overcomes the inherent shorttages of the traditional proppants(sand and ceramicite).Not only are crushing and flowback are prevented,but also the embedment is reduced.In addition,because of prevention of the migration of fines,it can keep the fractures retain a good permeability for a long time under higher closure stress.Now,a vast amount of proppants have been used which instead of both sand and ceramicite in many oilfields in USA.According to the experimental data and the field applications,this paper shows tha it is more effective than the tranditional proppants in hydraulic fracturing,and using this proppant can increase greatly the production of oil and gas.The economic benefit analysis indicates that it is most economical and reasonable;therefore,it has a great developing tuture in hydraulic fracturing treatments.

10.3969/j.issn.1000-7393.1994.03.016