초록 ▼

An improved chemical composition and process for cleaning pipe dope from wellbores has been established. The chemical composition is of an aliphatic hydrocarbon and/or esters with a biodegradable water insoluble monoterpene preferably having a flash point (PMCC) greater than 140°F. the mixture then

An improved chemical composition and process for cleaning pipe dope from wellbores has been established. The chemical composition is of an aliphatic hydrocarbon and/or esters with a biodegradable water insoluble monoterpene preferably having a flash point (PMCC) greater than 140°F. the mixture then used neat, or in a dispersion of seawater, being used to remove pipe dope from tubing, casing and the like.

대표청구항 ▼

A process for cleaning pipe dope from a well system comprising the steps of (a) preparing a pipe dope cleaning composition of from about 90% to about 10% by weight terpene hydrocarbon with a flash point greater than 140°F. and about 10% to about 50% by weight a component selected from the group cons

A process for cleaning pipe dope from a well system comprising the steps of (a) preparing a pipe dope cleaning composition of from about 90% to about 10% by weight terpene hydrocarbon with a flash point greater than 140°F. and about 10% to about 50% by weight a component selected from the group consisting of oil soluble aliphatic hydrocarbons with a flash point of greater than 140°F., esters with a flash point of greater than 140°F. and mixtures thereof; (b) pumping the composition with water into a wellbore; (c) contacting the area in the wellbore with the pipe dope with the composition; and (d) removing the composition and pipe dope from the wellbore.