For offshore drillings, one of the biggest drilling waste is sewage which grows out of drilling fluids, rain, water used to wash bits and cooling water. Usually, the under-treated sewage weighs 30 times the well-bore volume. Therefore, sewage minimization is a very vital part in the whole waste treatment....

It is necessary to carry out regular efficiency analysis of solids control system in drilling site in orde to improve drilling fluids properties and better manage the cost. Generally speaking, the aggregate drilling fluids consumption in a well counts 10 to 20 times the volume of a borehole....

In geotechnical engineering, drilling fluid is used to aid the drilling of boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling rigs, drilling fluids are also used for much simpler boreholes, such as water wells....

Solids control equipment is an important demonstration of scientific drilling. The continuous enhancement within almost a decade remarkably brings about better drilling techniques, less maintenance on circulating system, faster drilling velocity and lower costs....

Proper mud density is of high necessity since only it can well control formation pressures, maintain well bore stability and ensure successful electrical logging....

Drilling fluids, the circulating fluid for drilling operations, is a mixture of the fluid, the solid and chemical agents. It is usually known as the “mud” or the “blood of drilling” deriving from its distinctive significance....