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有三个地层温度超过140℃的北海油田存在硫化铅(PbS)和硫化锌 (ZnS)结垢现象。常规的阻垢剂不能控制结垢 ,化学除垢法又会导致地层产生硫化氢(H2 S)。本文叙述了一种新型阻垢剂在这些油田的应用开发情况 ,还将机械和化学除垢法作为阻垢剂可选方法进行了讨论
Three North Sea oilfields with formation temperatures above 140 ° C present lead sulfide (PbS) and zinc sulfide (ZnS) scaling. Conventional scale inhibitors do not control fouling and chemical descaling causes H2S in the formation. This article describes the application and development of a new type of scale inhibitor in these fields and discusses mechanical and chemical scale removal methods as an alternative to scale inhibitors