Patent ID: 6073709
Filing Date: 2000-06-13
Classification: E21B

Abstract:
A drilling rig mud reclamation system comprising:(a) a unitized structure having a mud inlet line to be connected to deliver mud from the drilling rig;(b) a first stage centrifuge provided with the mud from the drilling rig for separating heavy weight solid components thereof and forming a first stage liquid discharge;(c) a second stage centrifuge provided with the first stage liquid discharge for removing lighter weight solid components in the first stage liquid discharge including those added during drilling;(d) a tank for remixing the heavy weight solid components from the first stage centrifuge with the liquid discharge from the second stage centrifuge to form a refurbished drilling mud having a specified weight; and(e) a sensor operated control system wherein(i) said sensor system monitors operating parameters of said first and said second stage centrifuges,(ii) said control system responds to signals from said sensor system to regulate said operating parameters of said first and said second stage centrifuges to separate said heavy weight solid components of a predetermined weight.