05.07.2009
The three year average proved reserve replacement rate is the total net proved reserves changes over the three year period including purchases and sales (excluding production) divided by the total net production for that period
Techniques in which the same quantity is measured at different times in the life of an oil or gas reservoir. Normally the only change in a time-lapse measurement or survey will be due to changes in water or gas saturation. Thus, a comparison of two logs run at different times, such as a year apart, should simply reflect the change in fluid saturations in the pore space
The total in-place resource base of crude oil and natural gas (the amount that existed prior to any production) consists of the total volume that was formed and trapped within the earth’s crust. The in-place resource is a function of the organic content of the source beds from which the hydrocarbons have been derived, the physical conditions under which they formed and migrated, and the effectiveness of the “trap.” (A “trap” is a discontinuity in the properties of the underground formations that, because of reduction in permeability, slows the upward migration of the generated oil and gas so that they accumulate temporarily, although for a long time in human terms, and can be located and produced.) In general, the historically evaluated recoverable portion of the in-place oil and gas resource base is composed of four main parts: cumulative production, proved reserves, indicated and inferred reserves & undiscovered resources
A stand of pipe made up or three joints and handled as a unit. Compare double, fourble, and single
Manufactured from coal, is a mixture of hydrogen, carbon monoxide, methane and other gases
Sorry, this entry is only available in עברית.
A reverse fault that has a dip of less than 45 degrees.
The bottom of a particular hole section where drilling is stopped – or the total depth to be reached in a particular well – logs are run and casing is cemented before starting the next, smaller diameter hole section