What is meant by mud pumping?

A mud pump is a reciprocating pump used to circulate fluid (mud) through a well during drilling. The reason for circulating fluid through the well is to carry the cuttings from the drilling process back up to the surface. The mud pump is used in oil and gas drilling operations as well as water drilling.

What is the function of a mud pump?

A mud pump or drilling pump is used to circulate drilling mud (also referred to as drilling fluid) downhole during drilling operations. The drilling mud is pumped downhole at pressures up to 7500 PSI through the drill string.

Where are mud pumps used?

Equipment in Mud Circulating Systems Mud pumps serve as the heart of the mud circulating system. Reciprocating piston pumps (also called slush pumps or power pumps) are widely used for drilling oil and gas wells.

What are the causes of mud pumping?

One type of localised maintenance issue is the development of wet beds or wet spots, which can occur where saturated clayey subgrade soils are overloaded and result in the development of mud pumping as trains pass. This leads to the migration of fines into the ballast bed and a deterioration in local track performance.

What is mud pumping in civil engineering?

Joints form the break in the cement concrete pavement. This causes infiltration of water through them. The infiltration of water through the joints damages the soil sub-grade and the soil slurry ejects out through the joints under heavy wheel loads. This phenomenon is known as mud pumping.

What is mud pumping in rigid pavement?

Mud pumping. When the soil slurry comes out through the joints and cracks of cement concrete pavement due to heavy wheel loads, then it is called as Mud pumping. Mud pumping makes downward movement of slab under the heavy load of vehicles.

What is duplex mud pump?

Duplex Pumps – 2 cylinders, double acting Figure 1 – Duplex Pump. The duplex pumps (Figure 1) have two cylinders with double acting. It means that pistons move back and take in drilling mud through open intake valve and other sides of the same pistons, the pistons push mud out through the discharge valves.

What is mud pumps oil and gas?

A mud pump (sometimes referred to as a mud drilling pump or drilling mud pump), is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi or 52,000 kPa) down the drill string and back up the annulus.

What is mud pumping failure?

PUMPING TYPES OF FAILURE IN RIGID PAVEMENTS35  When material present below the road slab ejects out through the joints or cracks, it is called pumping.  When soil slurry comes out it is called mud pumping. CAUSES OF FAILURE  Infiltration of water through the joints, cracks or edge of the pavement forms soil slurry.

What is mud pumping in cement concrete road?