Welcome To UTPedia

We would like to introduce you, the new knowledge repository product called UTPedia. The UTP Electronic and Digital Intellectual Asset. It stores digitized version of thesis, dissertation, final year project reports and past year examination questions.

Browse content of UTPedia using Year, Subject, Department and Author and Search for required document using Searching facilities included in UTPedia. UTPedia with full text are accessible for all registered users, whereas only the physical information and metadata can be retrieved by public users. UTPedia collaborating and connecting peoples with university’s intellectual works from anywhere.

Disclaimer - Universiti Teknologi PETRONAS shall not be liable for any loss or damage caused by the usage of any information obtained from this web site.Best viewed using Mozilla Firefox 3 or IE 7 with resolution 1024 x 768.

The Suitability of Barite from East Coast of Peninsular Malaysia as Weighting Agent in Drilling Fluid

Ho, Ching Sheam (2010) The Suitability of Barite from East Coast of Peninsular Malaysia as Weighting Agent in Drilling Fluid. Universiti Teknologi Petronas, Seri Iskandar ,Tronoh,Perak. (Unpublished)

[img]
Preview
PDF
Download (805Kb) | Preview

Abstract

A drilling fluid, or mud, is any fluid that is used in a rotary drilling operation in which that fluid is circulated or pumped from the surface, down the drill string, through the bit, and back to the surface via the annulus. Drilling fluid is crucial for a successful drilling program. From functioning to transport the rock cuttings to surface, its applications have become more diverse nowadays as the drilling operations are becoming more and more complex. One physical property of a drilling fluid critical to carry out many of the desired functions is its density. The density of drilling fluid is adjusted to balance or somewhat to overbalance pore pressures encountered in the course of drilling. Imparting positive pressure into the formation is of paramount importance in order to prevent inflow of formation fluid. Moreover, the pressure of mud column is important to stabilize the uncased section, particularly in the unconsolidated formation. Among the additives that are designed to give certain properties to drilling fluid, a weighting agent is used to increase the density of drilling fluids while minimizing the increase in the resistance to flow of the drilling fluid. Several minerals have been identified to be potentially used as weighting agents including barite, hematite, dolomite and illmenite. However, a combination of factors has made barite to be the most preferred choice compared to others. A drilling grade barite normally includes at least 85% by weight particles less than 75 microns and greater than 6 microns in equivalent spherical diameter [6]. (Nattier & Shumate, 2003) Naturally occurring barite contains 50-70 percent BaSO4. The remaining impurities are quartz and various silicates that may include dispersible clays. In order to be used as drilling-grade barite, the barite ore must meet the physical and chemical requirements as dictated in API 13-A: Barite physical and chemical requirements. [3]

Item Type: Final Year Project
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 03 Nov 2011 11:23
Last Modified: 25 Jan 2017 09:43
URI: http://utpedia.utp.edu.my/id/eprint/1340

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...