AAPG ANNUAL CONFERENCE AND EXHIBITION
Making the Next Giant Leap in Geosciences
April 10-13, 2011, Houston, Texas, USA
Mapping the Production Characteristics of the Haynesville Shale with a Well-Log Derived High-Density Stratigraphic Framework
(1) PetraLogos LLC, Spring, TX.
(2) Drillinginfo, Austin, TX.
Detailed stratigraphic correlations were made in the Upper Jurassic interval of Western Louisiana and East Texas on approximately 1,000 digital logs from wells that penetrate the section. The primary geophysical log used for identification of bounding surfaces was the Gamma-Ray. Other geophysical logs used to support the interpretations were the Deep-Induction and Spontaneous Potential. The surfaces associated with correlative well-log responses were both regionally and locally significant within the study area. Where possible, the regionally correlative surfaces were matched to second-order sequence boundaries that other workers have identified within the study area. Within the second order system tracts it was possible to identify bounding surfaces from the well-logs that defined parasequences that were regionally significant within the study area.
Reported production volumes for wells producing from the correlated intervals within the study area were used to define the production characteristics of each regionally significant stratigraphic interval. Production from wells that penetrated multiple stratigraphic intervals was assigned equally to each interval in which the well was completed. The production volumes of the stratigraphic intervals were mapped to identify the relationship between production and stratigraphy.