Mud cleaner

Robinson and assigned to Exxon Production Research Company, it was found invalid and efforts for re-issue was unsuccessful because of the existence of prior art filed at the British Patent Office by a German Inventor in the late 1800s.

A mud cleaner is a combination of desanders and/or desilters mounted over a shaker with a fine mesh screen.

The weighted mud flows to the inlet head section of the desander and/or desilter entering the hydrocyclones for separation of particles.

Mud leaving the underflow is further screened with fine mesh to separate larger particles allowing only barite size particles to pass through the screen returning and recovering then the clean mud.

Mud cleaner can effectively control weighted drilling fluid solid content.