Formulation Of Drilling Fluids For High Temperature Well Application Using Sabah Bentonite

Sonny Irawan, Sonny and Chow Weng Sum, Chow and Kori B Mohammad2 , Kori (2010) Formulation Of Drilling Fluids For High Temperature Well Application Using Sabah Bentonite. In: World Geothermal Congress 2010, 25 - 30 April 2010, Nusa Dua Bali - Indonesia.

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The objective of this work is to investigate the rheological performance of a locally-sourced bentonite from Sabah for use as drilling fluid against a commercial benonite from India. The rheological properties of the drilling fluids were obtained by using standard testing apparatus such as mud balance, viscometer and filter press. It was observed that the Sabah bentonite has lower values of density, gel strength (GS), plastic viscosity (PV), yield point (YP) and filtration loss as compared to the Indian bentonite. The Malaysian bentonite did not meet the API required viscometer reading of 600 rpm. However it was found that by adding 1.0 ppb of NaOH as an additive to the mud, the rheological performances of the mud improves significantly to meet the API standard. Economic analysis indicates that the treated Sabah bentonite mud is much cheaper than the Indian bentonite by as much as 39%. The results of this work showed that the locally-sourced treated bentonite is technically and economically feasible for use as drilling fluid application.

Item Type:Conference or Workshop Item (Speech)
Subjects:T Technology > T Technology (General)
Departments / MOR / COE:Departments > Geoscience & Petroleum Engineering
ID Code:2766
Deposited By: Dr Sonny Irawan
Deposited On:21 Sep 2010 04:50
Last Modified:01 Apr 2014 02:05

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