Norm Greenwood

Well Control Formulas app contains formulas that are common to the oil industry. The idea behind this app was to condense these important formulas so …

The total pressure acting on the wellbore is affected by pipe movement upwards or downwards. This little app calculates the swab and surge pressures. …

Crew Change Calendar is a small app that is used by people working even time rotations. Such rotations would be 28/28, 21/21, 14/14 days to name a cou …

This calculator calculates the bottom hole pressure on a well that has been shut in on a kick. The derived figure is based on specific inputs. The app …

This calculation gives you the required surface pressure for a given depth and fluid weight. For example - the drilling program called for the formati …

Annular Velocity is a small calculator used for evaluating the flow velocity past your pipe in the well bore. This simple little calculator is one tha …

This ECD calculator is used when mud weights are in excess of 13 ppg.It is another tool found in the mud engineer's toolkit. It is common to the o …

This little calculator gives a barrels per stroke value of the Triplex pump being used at any efficiency. This little program is another tool in the m …

Water Phase Salinity is calculator commonly used to measure the activity level of salt in oil/synthethic based drilling fluids. This is a common calcu …

This Calculator takes the fluid pumped and breaks it down into the Volume, Height and Pressure gained from pumping the slug. The annulus volume reques …