In the drilling operation, through the jet mud mixer device configuration of mud, the high pressure drilling fluid configured in the mud pump into the bottom, and carrying drilling cuttings to return to the ground, return pipe into the drilling fluid shaker screen sieve through the mud, in effect, through the 40-60 mesh will be solid particle separation of 76um out, into the mud pool. Into the mud tank through a screen filter mud.
When the drilling fluid with gas, through the vacuum degasser device under the action of the vacuum pump the gas drilling fluid removal, thereby restoring the density of drilling fluid, stabilizing the viscosity of drilling fluid.
solid control system
Three level of mud purification process
After drilling fluid level two after purification, in addition to pressure device for pump, the desander, through high pressure cyclone desanding cyclone desander,effective mud into the barn, 47-76um solid particles from the cyclone for removing sand trickle out through the mouth, in addition to sieving sand bottom sieve, solid particles into the mud pool, filtered mud into the desander bin.
desilter
After drilling fluid level three after purification, in addition to the mud pump pressure device, enter the desilter, through high pressure swirl mud cyclone,effective mud into the desilter warehouse, 15-47um solid particles from mud cyclone drip nozzle flow, by removing the sieving mud bottom sieve the solid particles, into the mud pool, filtered mud into the mud removing device warehouse.
Through drilling fluid level Four after purification, into the drilling fluid decanter centrifuge under the action of high speed centrifuge, in the role of centrifugal force, the formation, the 5-15um solid particles through the discharging port is excluded, the drilling fluid is less than 5-15um into the centrifuges to recycling bin.
Typically, five grade purification is performed at the same time, if only one or several purification, drilling fluid can meet the drilling requirements, can also purify this one or several mud. Drilling fluid evolution after the completion of drilling fluid circulation, can be carried out the next process.