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Monday, 04/28/2008 2:43:39 PM

Monday, April 28, 2008 2:43:39 PM

Post# of 111

NOG.V ----I FOUND THIS ON THE BULLBOARDS
The stock has started to move up.
--------TABLE POUNDER



(http://eti-geochemistry.com/jd/index.html)

We have demonstrated that a well-ordered chemical relationship among light hydrocarbon gases in near-surface soils and gases exists as noted by Nikonov (1971) in reservoirs and by Pixler (1969) in gas shows from drilling wells. The correlations are certainly encouraging and imply that subsurface hydrocarbons do migrate to the surface. These conclusions were drawn initially from data observed in California basins, then supported by southwest Texas surveys, and later supported by observations in several major western basins. These same conclusions could have been drawn from data observed in eastern basins, such as the Appalachian and Michigan basins.
This established compositional relationship proves that the method directly detects subsurface hydrocarbons. Regardless of commercial considerations, a soil-gas seep leaves no doubt that hydrocarbons have been generated within the basin.
Current knowledge of surface geochemistry suggests that it provides an excellent tool for regional evaluations. This is especially true in relatively unexplored basins where additional accumulations, or any accumulations, are unknown. The prediction of oil versus gas production has obvious economic importance.
Another objective of this paper is to illustrate the relationship between hydrocarbon migration paths and local soil-gas anomalies. Pineview is an excellent example of where surface geochemical exploration might have pioneered discovery of the field, and did in fact predict both the westward extension of the field and the gas potential outside the field limits. One of these gas anomalies was confirmed by a wildcat well in 1981. One certainly could have predicted the right place to drill, even if drilled directly on the soil-gas anomalies, without due regard for downdip projections.
The question of lateral versus vertical migration is very important to the interpretation of geochemical data. Our present knowledge indicates that both occur. The extent of either depends on the geometry of the sediments and the tectonics. Our empirical data indicate that in most places there is enough vertical permeability for a seep to exist directly over a deposit. However, some lateral migration (particularly near the surface) generally occurs, so that the shape and location of the surface anomaly will not exactly match that of the prospective reservoir.
Surface geochemical anomalies are nothing more than microlevel oil and gas seeps. Link (1952) stated, "A look at the exploration history of the important oil areas of the world proves conclusively that oil and gas seeps gave the first clues to most oil-producing regions. Many great oil fields are the direct results of seepage drilling." More recently, Dickey and Hunt (1972) noted, "It is probable that more oil fields have been discovered by drilling on or near seeps than any other prospecting method.” Development of this technology to date has proved the usefulness of surface geochemistry for regional basin evaluation. Local evaluations may be difficult because the migration path must be established to determine whether a surface seep has originated from a particular subsurface trap. Evaluation of a particular seep requires a great deal of cooperation among geochemists, geologists, and geophysicists to obtain the amount and type of information needed for a correct interpretation


No matter ,it always rains on my parade
Arnie

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