Function of Drilling Solid Control equipments

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, mud cleaner, centrifuge, 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, 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.

Allen Lee / Sales Manager
Name：Xian Brightway Energy Equipment Co., Ltd
Phone：+86-29-89305763
Fax：+86-29-89305769
Address：No.118 Fuyu Road, Yuhua Industrial Zone, Yanta District, Xi’an City, China
E-mail：brightway@bwsolidscontrol.com

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