钻井液添加剂JLX-B抑制天然气水合物形成的实验研究  

Experimental study on drilling fluid additive JLX-B for inhibiting natural gas hydrate formation

作　　者：孙宝江[1] 马欣本[1] 刘晓兰[1] 任韶然[1] 

机构地区：[1]中国石油大学石油工程学院,山东东营257061

出　　处：《石油学报》2008年第3期463-466,共4页Acta Petrolei Sinica

基　　金：国家高技术研究发展计划(863)重大项目(2006AA09A106)“深水钻完井关键技术”资助

摘　　要：利用模拟深水井筒条件的实验设备,对纯水-甲烷体系中的天然气水合物进行了实验,建立了基础对比体系,并对钻井泥浆添加剂JLX-B抑制天然气水合物形成的作用进行了室内实验,得到了聚合醇JLX-B在不同浓度和相同浓度不同初始压力下的温压曲线。实验结果表明,在深水钻井用的钻井液中加入一定质量分数的聚合醇类处理剂JLX-B,可以延迟天然气水合物的形成。在添加剂量允许的条件下,加入质量越多,抑制效果越明显。A full suite of experimental facilities for simulating the conditions of deep-water borehole was used to analyze natural gas hydrate in pure water-methane system. A basic comparison system was established, and a series of laboratory experiments on inhibiting to natural gas hydrate formation by adding additive JLX-B into drilling fluid were carried out. The time-pressure curves of additive JLX-B under different additive concentration and same additive concentration at the different initial pressure were obtained. The experimental result showed that the drilling fluid could be added a certain additive JLX-B to delay the formation of natural gas hydrate in deep-water drilling process. If the amount of additive JLX-B is permitted, the more the amount of additive JLX-B is, the better the inhibition is.

关 键 词：钻井液 添加剂 聚合醇 天然气水合物 实验研究 

分 类 号：TE311[石油与天然气工程—油气田开发工程]