Drilling fluid applied in oil drilling solids control system

If you are involved in the field of oil & gas drilling, you must know drilling company often need drilling fluid solids control equipment such as shale shaker    desander  desilter  decanter centrifuge  centrifuge centrifugal pump   mud cleaner   vacuum degasser   Hydrocyclone cone    mud agitator    flare igniter     submersible slurry pump  mud tank    mud gas separator   Jet Mud Mixer    mud mixing pump   mud gun  screw pump    Shale Shaker Screen    shearing pump   Vertical Cutting Dryer etc. to treat drilling fluid and recycle it. But why do we apply the drilling fluid to the process of drilling? What functions does drilling fluid possess?

oil drilling mud solids control equipment on mud tank

Here, we will learn more about another one of the functions of drilling fluid: Seal permeable formations

Mud column pressure must exceed formation pressure, in this condition mud filtrate invades the formation, and a filter cake of mud is deposited on the wellbore wall.

Mud is designed to deposit thin, low permeability filter cake to limit the invasion.

Problems occur if a thick filter cake is formed; tight hole conditions, poor log quality, stuck pipe, lost circulation and formation damage.

In highly permeable formations with large bore throats, whole mud may invade the formation, depending on mud solids size;

Use bridging agents to block large opening, then mud solids can form seal.

For effectiveness, bridging agents must be over the half size of pore spaces / fractures.

Bridging agents (e.g. calcium carbonate, ground cellulose).

Depending on the mud system in use, a number of additives can improve the filter cake (e.g. bentonite, natural & synthetic polymer, asphalt and gilsonite).

From the above, you will find the importance of drilling fluid. After coming out from the pit, drilling fluid will come into the drilling fluid solids control system, to complete the control of solids through a series of solids control equipment, then enter the pit again to assist the drilling. For example：

Shale shaker: The shale shaker is the first stage of solids control equipment in the fluids processing system,which removes cuttings with diameter above 75μm from the drilling fluids brought up from the wells.Afterwards,the treated fluids flow into the tank waiting to be processed again in the next stage of the system.

In oil & gas drilling solids control industry, linear motion shale shaker is widely used for drilling mud purification system。

Decanter centrifuge: Decanter centrifuge is used in separating suspension of solid phase with particle diameter d≥2μm for drilling mud and fluids handling.

Tangshan Aojie Petroleum Machinery Equipment Make Co., Ltd (Short for: 

OGEM Solids Control)

Address: NO.2 Jingxi Road,Lunan District,Tangshan city,Hebei 

province,China

Tel: 86-315-8676484

Fax: 86-315-2648099

Zip Code: 063000

Email: ogem2@ogemsolidscontrol.com

       Info@OGEMSolidsControl.com

Website: http://www.ogemsolidscontrol.com/

Skype:burning_lee   

Facetime:bigshowlhc@163.com                             

OGEM solids control is main professional manufacturer of solids control system in China, OGEM  is a vital part of the world hydrocarbon exploration and production industry, as well as one of top three solids control equipment suppliers in China, which offers its products for CNPC, CNOOC ,HH, Gazprom, RG, etc . If you want to know more information about solids control system and oil drilling solids control equipment  shale shaker,you can contact us online.

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