... Abstract This paper discusses the merits of using wellhead (surface) pressure data for pressure transient testing on a variety of oil and gas wells. The case for using wellhead pressures for pre-frac completion procedures on shallow gas wells is examined in the context of obtaining sufficient...

... Abstract Unit supply cost is a widely used tool in the energy business for providing a one number-unit cost description. For example, controllable costs such as finding costs, development costs and operating costs have traditionally been described in an average cost per unit of reserves format...