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Oct 14

 What is the function of Barite for drilling fluids?

 Barite is commonly used to add weight to drilling fluid. Barite is of significance to petrophysicists because excess barite can require a correction factor in some well log measurements.

 A dense mineral, comprising barium sulfate [BaSO4]. Commonly used as a weighting agent for all types of drilling fluids, barites are mined in many areas worldwide and shipped as ore to grinding plants in strategic locations, where API specifies grinding to a particle size of 3 to74 microns. Pure barium sulfate has a specific gravity of 4.50 g/cm3, but drilling-grade barite is expected to have a specific gravity of at least 4.20 g/cm3 to meet API specifications. Contaminants in barite, such as cement, siderite, pyrrhotite, gypsum and anhydrite, can cause problems in certain mud systems and should be evaluated in any quality assurance program for drilling-mud additives.

barite recovery equipment

barite recovery equipment

 Since barite is essential for drilling fluids, how to recovery it to re-use become particular important. The most effective equipments for barite recovery is GN high speed decanting centrifuge.

 Specification of GN high speed decanting centrifuge for barite recovery

 Main motor: 50HP

Back drive motor: 10HP

Control method: manual control by electric motor

Bowl size: 14’ x 49.5’ (355x1250mm)

Housing (top & bottom casings): SS304

Treating capacity: 40m3/h( 176GPM)

Speed: 0~3200rpm

Separation point: 2μm

Main bearing: FAG

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written by GN Desander Desilter \\ tags: , , , , , ,

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