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Abstract
Basin-wide datasets that provide information on the geochemical properties of petroleum systems, such as source rock quality, product composition, and thermal maturity, are often difficult to come by or assemble from publicly available data. When published studies are available and include these kinds of properties, they generally have few sampling locations and limited numbers and types of analyses. Therefore, production-related data and engineering parameters can provide useful proxies for geochemical properties that are often widely available across a play and in some states are reported in publicly available or commercial databases. Gas-oil ratios (GOR) can be calculated from instantaneous or cumulative production data and can be related to the source rock geochemical properties like kerogen type (Lewan and Henry, 1999) and thermal maturity (Tian et al., 2013; U.S. Energy Information Administration [EIA], 2014). Oil density or specific gravity (SG), often reported in American Petroleum Institute units (°API = 141.5 /SG – 131.5), can also provide information on source rock thermal maturity, particularly when combined with GOR values in unconventional petroleum systems (Nesheim, 2017).
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Estimating thermal maturity in the Eagle Ford Shale petroleum system using gas gravity data |
| Series title | Gulf Coast Association of Geological Societies Transactions |
| Volume | 67 |
| Year Published | 2017 |
| Language | English |
| Publisher | Gulf Coast Association of Geological Societies |
| Contributing office(s) | Central Energy Resources Science Center |
| Description | 7 p. |
| First page | 397 |
| Last page | 403 |
| Google Analytic Metrics | Metrics page |