All Blog Posts Tagged 'mud' (7)

Mud motor failure downhole may be happened from time to time. The questions that are usually raised are things like “How do I know if the mud motor fails down hole?” and “What indications will I see that this has happened?” etc. Due to this, I would like to share my personal experience regarding mud motor failure and its symptoms.…

Drilling waste minimization is a method to reduce any waste generated from drilling operation. The ideal goal of it is to generate zero residue requiring final disposals. People have developed technologies for two main reasons which are project cost reduction and environmental protection.

Typically, the drilling waste minimization starts with reducing amount of drilling waste, recycling and recovering waste…

pH is a value representing the hydrogen ion concentration in liquid. We use it to indicate acidity or alkalinity of drilling mud especially water base mud. Let’s talk about general of the pH. The pH is presented in a numerical value (0-14) which means an inverse measurement of hydrogen concentration in the fluid.

The pH formula is listed below;…

Newtonian fluid model is the simplest rheological model. Let’s describe in the mathematical way, a relationship between shear stress (lb/100 ft2) and shear rate (1/sec), named a consistency curve, is a straight line which passes through the original (see the figure below).…

The gel strength is the shear stress of drilling mud that is measured at low shear rate after the drilling mud is static for a certain period of time. The gel strength is one of the important drilling fluid properties because it demonstrates the ability of the drilling mud to suspend drill solids and weighting material when circulation is ceased.

How can we get…

Plastic Viscosity (PV) is the resistance of fluid to flow. In the field, we can get the PV from a viscometer. Typically, the viscometer is utilized to measure shear rates at 600, 300, 200, 100, 6, and 3 revolutions per minute…