Brief introduction of drilling mud

Drilling mud refers to the oil and gas drilling process with its various functions to meet the needs of drilling a variety of circulating fluid in general. Drilling fluid is also known as drilling mud (Drilling Mud), or simply mud (Mud). Drilling fluid circulation is maintained through the mud pump, through the mud pump discharged from the high pressure drilling fluid through the ground high pressure pipe, riser, hose, faucet, drill pipe, drill pipe, drill collar to drill bit, To clean the bottom of the well and carry the cuttings.

Drilling mud according to different standards can be divided into several categories: according to the density is divided into: drilling and non-weighting drilling fluid; according to the strength of clay hydration is divided into: inhibition drilling fluid and non-inhibitory drilling fluid; Content is divided into: low solid drilling fluid, no solid drilling fluid. According to the fluid medium can be divided into liquid, gas and gas and gas, in which liquid drilling fluid can be broken down into oil-based drilling fluid, water-based drilling fluid and synthetic base drilling fluid.

Drilling mud in the operation of the main role is as follows:

1, carry and suspend cuttings

2, stabilize the wall and balance the formation of pressure

3, cooling and lubrication of drilling tools, drill 4, the transmission of hydrodynamic.