Good solids control procedures are often ignored in many oil & gas drilling projects. Many people do not understand very well the basic principles of drilling fluids solids control. They persist that drilled solids are evil & insidious. In a short term, drilled solids increasing generally does not reveal their economic impact immediately, and the detrimental effects are also not immediately obvious on the drilling rig. But in a long term, increasing of drilled solids would generate many problems on drilling rigs. So drilled solids need to be removed at the surface by solids control equipment, such as shale shaker, desander ,desilter ,decanting centrifuge , centrifugal pump, mud cleaner ,vacuum degasser, mud agitator etc. to reduce the risk.
Drilled solids damage reservoirs, increasing drilling cost, and also create large drilling processing disposal cost. To drill an oil or gas well fast, safely, and under budget, it is necessary to remove the drilled solids which not only include drilling cuttings, but also sloughs that drop from the wall of borehole. If these drilled solids can not be removed timely, they would cause many problems, including:
● Filtrate damage to formation
● Drilling rate limits
● Drilling string stuck
● Borehole Problem
● Lost circulation problem
● Direct drilling fluid cost
● Increasing disposal cost
Decreasing drilled solids is analogous to buying an insurance to an event that will not happen to drilling rig. Nobody wish these above problems happen to any drilling project, but they do exist, and they are real. The effects of drilled solids on economics of drilling a well is subtle, and increasing of drilled solids does not result in a disaster immediately on a drilling rig. When the drill bit ceases to work and torque increases, driller know that it is time to pull the bit. But when the drilled solids increases, the detrimental effects are not apparent immediately.
That is why the drilling fluids are used to bring drilled solids to the surface, and removed timely by the solids control equipment, such as shale shaker, desander, desilter, drilling mud cleaner, centrifuge, etc. But not all the solids are removed, and it is also impossible to remove all the solids. Some solids that smaller than the shaker screen openings would stay in drilling fluids, and other additive agents, such as barite, clay, etc. are also essential to adjust drilling fluids property.
KOSUN, with more than 20 years experience of designing and manufacturing solids control equipment used in oil & gas extraction, provides full range of drilling waste management equipment and solids control equipment mainly including shale shaker, desander, desilter, mud cleaner,decanter centrifuge ,vacuum degasser and complete solids control system. KOSUN reduces the drilling waste at well source where solids control equipment are involved. KOSUN's advanced engineers will collaborate with you to fully understand the project priorities and customize the proper solids control equipment for benefit maximization and reduction of local environmental pollution.
