6 |
P a g e
Segment Maps (CRS Maps). High confidence in the presence of imperative geological factors
is usually Colored green and low confidence colored red. Therefore these maps are also called
Traffic Light Maps, while the full procedure is often referred to as Play Fairway Analysis. The
aim of such procedures is to force the geologist to objectively assess
all different geological
factors. Furthermore it results in simple maps that can be understood by non-geologists and
managers to base exploration decisions on.
2.3 Elements of a petroleum prospect
Fig 2 :Mud
log in process, a common way to study the rock types when drilling oil wells.
A prospect is a potential trap which geologists believe may contain hydrocarbons. A
significant amount of geological, structural and seismic investigation
must first be completed
to redefine the potential hydrocarbon drill location from a lead to a prospect. Five geological
factors have to be present for a prospect to work and if any of them fail, neither oil nor gas will
be present.
7 |
P a g e
2.4 Terms used in petroleum evaluation
Bright spot - On a seismic section, coda that have high amplitudes
due to a formation
containing hydrocarbons.
Chance of success - An estimate of the chance of all the elements (see above) within a
prospect working, described as a probability.
Dostları ilə paylaş: