GrayStone Exploration Labs, Inc
GrayStone Exploration Labs, Inc
The loss of "signal" around all six injectors
is clear, however, additionally, all four of
the structural highs measure higher soil iodine values after CO2
injections compared to the baseline survey.
Geochemical Fracture Detection
Maybe the most popular word in the oil patch today is "fracture." Unconventional resources depend on the
creation of fractures to produce hydrocarbons from tight reservoirs. Fractured reservoirs are not new, they
have been important sources of hydrocarbons from the beginning. Many are traditional structural or
stratigraphic subsurface accumulations but some are fractures or clusters of fractures, breccia, which act
like vertical tanks. These structures are difficult to locate traditionally but make excellent targets for
geochemistry.
Stoney Point Field
This iodine survey was collected across the northern portion of the Stoney Point Field prior to discovery.
Along with radiometric and seismic surveys these data were credited with the discovery. Stoney Point, with
more than 10 million barrels of oil produced, is a few miles west of the giant 100 million barrel Albion
-Scipio field, and the name sake of this type of deposit. These fields produce from dolomite formed in
fractures. These fracture reservoirs are long, thin, nearly linear features.   
Jackson and Hillsdale Counties Michigan 3W 4S
Although there are almost three times more wells than geochemical samples a simple outline of the
anomalous samples, collected along the roads, has outlined the field. The anomalies are a mixture of
mildly anomalous points and a few very high values. Other surveys over fractures have had similar
distributions.