深水钻井液添加剂抑制气体水合物生成实验  

Experimental Study on Gas Hydrate Inhibition Effects of Deepwater Drilling Fluid Additives

作　　者：赵欣[1] 邱正松[1] 邢希金 周国伟[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580 [2]中海油研究总院,北京100027

出　　处：《石油化工高等学校学报》2013年第5期42-45,共4页Journal of Petrochemical Universities

基　　金：国家科技重大专项(2011ZX05030-005-07);教育部创新团队发展计划(IRT1086);高等学校博士学科点专项科研基金资助课题(20110133110008)

摘　　要：深水钻井中,水合物的大量生成与聚集是引起防喷器堵塞等事故的直接原因。利用水合物模拟实验装置,模拟了深水钻井动态环境,对深水水基钻井液常用添加剂进行了水合物生成实验研究。以水合物开始大量生成的时间为评价标准,分析了常用加量下深水钻井液添加剂抑制水合物生成效果。结果表明,聚合醇SD-301可显著推迟水合物大量生成的时间,其抑制效果优于常用水合物动力学抑制剂PVCap;聚阴离子纤维素PAC-LV、生物聚合物XC、羧甲基纤维素CMC-LV以及动力学抑制剂PVP也具备一定的抑制效果;而部分水解聚丙烯酰胺PLUS、氨基聚合物SDJA以及磺化酚醛树脂SD-102的抑制效果并不明显。The significant formation and aggregation of hydrates would lead to blockage of BOP stacks during deepwater drilling. The process of gas hydrate formations in the presence of common additives used in deepwater drilling fluids were investigated in the simulating condition of deepwater by utilization of a simulating device. The hydrate inhibition properties of additives were analysed according to the time of significant hydrate formation. The results show that polyglycol（SD-301） could delay the significant hydrate formation noticeably, and it performed better than kinetic hydrate inhibitor（PVCap）. Polyanionic cellulosic polymer（PAC LV）, biopolymer（XC）, carboxymethyl cellulose（CMC LV） and kinetic hydrate inhibitor（PVP） could also control the hydrate formation to some extent. While the inhibitions of partially hydrolyzedpolyacrylamide （PLUS）, polyamine（SDJA） and sulfomethal phenolaldehy resin（SD 102） could be ignored.

关 键 词：深水钻井 钻井液添加剂 气体水合物 抑制作用 

分 类 号：TE254[石油与天然气工程—油气井工程]