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BENTONITE DRILLING MUD
BENTONITE DRILLING MUD
BENTONITE DRILLING MUD
BENTONITE DRILLING MUD
BENTONITE DRILLING MUD
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Specification of

Sodium bentonite expands when wet, absorbing as much as several times its dry mass in water. Because of its excellent colloidal properties, it is often used in drilling mud for oil and gas wells and boreholes for geotechnical and environmental investigations. The property of swelling also makes sodium bentonite useful as a sealant, since it provides a self-sealing, low permeability barrier. It is used to line the base of landfills, for example. Various surface modifications to sodium bentonite improve some rheological or sealing performance in geoenvironmental applications, for example, the addition of polymers.

Composition of drilling mud

Water-based drilling mud most commonly consists of bentonite clay (gel) with additives such as barium sulfate (barite), calcium carbonate(chalk) or hematite. Various thickeners are used to influence the viscosity of the fluid, e.g. xanthan gum, guar gum, glycol,carboxymethylcellulose, polyanionic cellulose (PAC), or starch. In turn, deflocculants are used to reduce viscosity of clay-based muds; anionic polyelectrolytes (e.g. acrylates, polyphosphates, lignosulfonates (Lig) or tannic acid derivates such as Quebracho) are frequently used. Red mud was the name for a Quebracho-based mixture, named after the color of the red tannic acid salts; it was commonly used in 1940s to 1950s, then was made obsolete when lignosulfonates became available. Other components are added to provide various specific functional characteristics as listed above. Some other common additives include lubricants, shale inhibitors, fluid loss additives (to control loss of drilling fluids into permeable formations). A weighting agent such as barite is added to increase the overall density of the drilling fluid so that sufficient bottom hole pressure can be maintained thereby preventing an unwanted (and often dangerous) influx of formation fluids.

Untuk informasi lebih lanjut hubungi:

Ibu WATY

Mobile/WA: 081376851098

_______________________________________________________

CV. KARUNIA MAKMUR PERSADA

KOMPLEK RUKO TRITURA VISTA  BLOK A ,  JL.  M. BASIR NO. A- 6

PANGKALAN  MASYHUR ,  MEDAN   20143

TELP: 081376851098, 061-42779826, 42779836  Fax: 061-42779826

Email: wati@karuniamakmurpersada.com, karuniamakmur19@gmail.com

Website :       karuniamakmur.indonetwork.co.id

                       www.coolboxdelta.com

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