초록 ▼

A portable well drilling mud storage and recirculation unit includes a mud storage tank mounted on an over-the-road semi-trailer having an engine driven circulating pump mounted onboard and adapted to withdraw mud from the tank for circulation to the well and for recirculation through a set of mud a

A portable well drilling mud storage and recirculation unit includes a mud storage tank mounted on an over-the-road semi-trailer having an engine driven circulating pump mounted onboard and adapted to withdraw mud from the tank for circulation to the well and for recirculation through a set of mud agitating nozzles disposed in the bottom of the tank. A mud degassing vessel, a solids separator unit and an additive blending unit are all mounted above the tank. The degassing vessel is supported by hydraulic cylinder actuators for movement between a retracted transport position and a vertically elevated working position.

대표청구항 ▼

A portable drilling mud circulation and storage unit comprising: a wheeled undercarriage including frame means; a mud storage tank supported on said frame means; a circulating pump disposed on said frame means, said pump including an inlet conduit connected to said tank for withdrawing mud from said

A portable drilling mud circulation and storage unit comprising: a wheeled undercarriage including frame means; a mud storage tank supported on said frame means; a circulating pump disposed on said frame means, said pump including an inlet conduit connected to said tank for withdrawing mud from said tank, a discharge conduit connected to said pump and including a first conduit portion adapted to be connected to a well circulation system, and a second conduit portion of said discharge conduit connected to said tank for recirculating mud back to said tank; valve means in said first and second conduit portions for selectively controlling the flow of mud therethrough; mud circulation nozzle means disposed in said tank and connected to said second conduit portion for discharging a jet stream of mud into said tank for agitating mud stored in said tank; said second conduit portion including a vertically extending end part terminating adjacent a bottom wall of said tank and having said nozzle means projecting substantially horizontally therefrom; and a mud blending unit including means interposed in a branch conduit connected to said second conduit portion for injecting additives into mud being circulated to said tank, said branch conduit having an outlet end for discharging mud mixed with additives into said tank for being mixed with mud agitated by said nozzle means.