Part A: answer the following questions: 1- How many sacks of barite are required to increase the density of 800-barrel mud system from 12.7 IB/GAL to 14.5Ib/gal ? (2M) 2- Determine the number of sacks required of hematite to increase the density of 100bbl mud that has a density of 12lb/gal to 14lb/gal. Also, determine the volume increase.(3M) 3- Determine the amount of oil required to reduce the weight of 100bbl drilling fluid that ha a density of 13.5lb/gal to 12lb/gal. (2M) 4. Write a short paragraph bout Jar mentioning the following information. (3M) I. Function II. Type III. Working principle