A well test is when the well is opened up and flowed under controlled conditions. There are several short (hours) periods of flow with various choke valve settings with shut in periods of build up in between. Flow testing confirms the capability of the reservoir to deliver. DST are essential for SEC reserves booking. Testing service to help characterize a reservoir economically and provide as clear a picture as possible of a well’s ability to produce
The physical, chemical and biological processes that decompose rock at and below the surface of the Earth through low pressures and temperatures and the presence of air and water
An international system unit of power equal to one joule per second
A level beneath the Earth’s surface, below which all pore spaces are filled with water and above which the pore spaces are filled with air. The top of the zone of saturation in a subsurface rock, soil or sediment unit
Waste heat, or rather residual heat refers to heat produced by equipment and industrial processes for which no useful application is found, and is regarded as a waste by-product. Power stations and manufacturing plants waste a staggering amount of energy, with power plants sometimes wasting two-thirds of the energy they produce. If the heat is at a such low temperature that it is not possible to recuperate it and generate with it any useful energy, or work (in whatever form), then it is not “wasted” (Carnot’s Law). Only if it is at a sufficiently high temperature where, if desired, it may be utilized for another process and this is not done, can it be defined as residual heat
The energy absorbed by tissue from ionising radiation. One gray is one joule per kg, but this is adjusted for the effect of different kinds of radiation, and thus the sievert is the unit of dose equivalent used in setting exposure standards.
For acoustics, the speed at which a sound wave (a longitudinal wave) travels through a medium. Velocity is measured in units of distance/time. The velocity or speed of a sound wave in any medium is dependent on both the inertial and elastic properties of the medium. In air, the speed of sound is dependent on the air’s pressure and its temperature. At one atmosphere of pressure and a temperature of 20°C (68°F), the speed of sound is approximately 343 m/s (750 mph).
Static wellhead pressure during test
The pressure measured in the wellhead of a producing well
Production from oil and gas wells can be increased using compression to provide reduction of backpressure in well bores, increased pressures into sales lines, and recovery of valuable hydrocarbon vapors from stock tanks. Often changes in the pressure will dramatically increase oil and gas production from low volume wells
