纤维素类降滤失剂抑制天然气水合物形成的实验研究

Experimental Studies on the Inhibition of the Formation of Natural Gas Hydrates by Cellulosic Filter Loss Agents.

利用模拟深水井筒实验设备开展了一系列在钻井液中添加降滤失剂LV-CMC用于抑制天然气水合物形成的室内实验,通过实验获得了该添加剂在不同浓度,不同初始压力情况下的作用结果。结果表明.在深水钻井过程中加入一定浓度的LV-CMC,可以延迟天然气水合物的形成,证明LV-CMC具有抑制天然气水合物形成的作用,并且其浓度越大,抑制效果越明显。

A series of experiments were done on the studies of the inhibition of the formation of natural gas hydrates by adding a cellulosic filter loss reducer,LV-CMC,on a deep water bore hole simulator.The experiments showed that the addition of a certain concentration of LV-CMC in drilling fluids in deep water drilling postponed the forma- tion of natural gas hydrates.It was also found that the higher the concentration of LV-CMC,the stronger the inhi- bition to the formation of the hydrates.