![]() The basic function of a drilling fluid is the transportation of cuttings generated during drilling activities and this must be done effectively, with the hole being cleaned with a minimum accumulation of cuttings in the annulus. ![]() This leads to a number of problems which include Stuck pipe, increased cost of drilling, decreased rate of penetration, formation fracturing and many others. A successful drilling program is a product of an efficiently cleaned hole whereas, a poorly cleaned hole implies the accumulation of formation cuttings in the well. The transportation of cuttings and good hole cleaning is very important in any drilling operation because a successful drilling operation is vital to a profitable business in the oil and gas sector. The specific objective of this research is to ascertain the high gravity solids and low gravity solids that gives better hole cleaning during oil and gas drilling operations while the main objective is to measure the effect of mud weight in achieving effective hole cleaning of the wellbore.
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