The following tests shall be carried out by the Mud Engineer to guard against possible wrong delivery of bulk material from supply vessels/trucks: – water/acid test– weighing method test The Mud Engineer shall ensure that the type of material is checked before the new delivery is loaded into the rig bins. Sampling on Arrival A … Drilling fluids QA/QC – Quality Control of Bulk Materials at Rig Site

The following tests shall be carried out, or fully supervised, by the Mud Engineer, to determine the quality of barites delivered to the rig. Sampling Barites shall be sampled using the same method as outlined for cement above. Testing Contamination of barites by bentonite is determined simply by the fact that severe gellation will occur … Drilling fluids QA/QC – Quality Control of Barites

The following procedures shall be carried out, or fully supervised, by the Mud Engineer to determine the salinity of freshwater delivered to the rig. This is essential to prevent inadequate yielding of bentonite and unwanted acceleration of freshwater cement slurries. The salinity level determination of the water should be carried out using the DS meter … Drilling Fluids QA/QC – Quality Control of Freshwater