Skip to main contentSynthesis of the Wolfcampian platform carbonate system in the Permian Basin Region – West Texas Geological Society Investor Presentation | Shale Experts
A synthesis of the Wolfcampian platform carbonate system in the Permian Basin Region Qilong Fu Bureau of Economic Geology Jackson School of Geosciences The University of Texas at Austin West Texas Geological Society,…
Outline Introduction and Geological Setting Stratigraphy Wolfcampian outcrop in the Hueco Mountains, Diablo Platform, Orogrande Basin Wolfcampian outcrop in the Sierra Diablo Mountains, Diablo Platform, Delaware Basin Wolfcampian…
Introduction Wolfcampian Platform carbonate plays in the Central Basin Platform and Northwest Shelf of the Permian Basin (modified from Dutton et al., 2005). Permian Basin production by geological age: (a) cumulative production…
Geological setting Wolfcampian paleogeographic Regional tropical map of Permian northeasterly prevailing Basin area (Blakey, winds and ocean 2008). currents produced a high-energy zone along Marathon-Ouachita eastern-facing…
2nd-order sequence boundaries (unconformities) and sea-level changes (After Markello et al., 2008) Timing, duration and character of the late Paleozoic Ice Age, and estimated maximum magnitude of glacioeustatic fluctuations…
Geological setting Late Wolfcampian paleogeography in the Permian Basin region West Texas Geological Society, 03/08/2011, Midland, TX
Stratigraphy Compiled chart showing proposed fusulinid-based correlations of the Wolfcampian secession in the Permian Orogrande Basin region, Western Texas and southeastern New Mexico. Sixteen fourth-order depositional sequences…
Stratigraphy (A) West-east cross section of the Wolfcampian strata in the Northwest Shelf (Modified from Silver and Todd, 1969). (B) (B) Cross section showing lithofacies and stratigraphic architecture of the Wolfcampian in the…
Stratigraphy Distribution of Wolfcampian bioherms (algal mounds) in the Permian Basin area (after Wahlman, 2009, cited from Wahlman, 1988) West Texas Geological Society, 03/08/2011, Midland, TX
Outcrop in Hueco Mountains (A) General map of the Permian Basin and Orogrande Basin. The two rectangles outlined in red indicate the locations of outcrops studied in the Hueco Mountains and Sierra Diablo Mountains. (B) Terrain map…
Hueco Mountains 1. Peritidal and adjacent restricted subtidal facies Association Fenestral mudstone, Peloid wackestone to mud-dominated packstone 2. Open shelf and Shoal facies association Foraminiferadasycladacean alga wackestone and…
Hueco Mountains (a) Fenestral mudstone. Irregular fenestrate areas (fe) are filled with internal sediments (micrite and peloids) and calcite cement. (b) Foraminifera alga wackestone. Grains include dasyclayacean algae (algae),…
Hueco Mountains Upper left: Fusulinid packstone. most fusulinid and other skeletal grains are neomorphised Upper right: both grains and matrix are intensely neomorphised. Lower light & lower right: limestones are replaced by dolomite…
Hueco Mountains Eastern and southeastern wall photomosaic of the southern outlier, and the line tracing and facies maps (After El-Azzi, 1999). SH: measured section. West Texas Geological Society, 03/08/2011, Midland, TX
Model showing facies distribution, geometry and stratigraphic architecture in the southern and central outliers (After El-Azzi, 2009). West Texas Geological Society, 03/08/2011, Midland, TX
Sierra Diablo Facies of the Main Body of the Hueco Group in Sierra Diablo (after Fitchen et al., 1995) West Texas Geological Society, 03/08/2011, Midland, TX
Sierra Diablo Lithostratigraphic framework and sequence stratigraphic framework of the Wolfcampian Series (Fitchen et al., 1995). West Texas Geological Society, 03/08/2011, Midland, TX
Depositional and tectonic history of the Victorio Flexure area during middle to latest Wolfcampian time. A) Pre-Hueco Carbonate Powwow terrestrial and shallow marine deposition supplied from eroded neighboring highlands; B.) Lower…
Central Basin Platform Core slabs of Wolfcamp Reef interval from well Unocal Parker X-1. West Texas Geological Society, 03/08/2011, Midland, TX
Central Basin Platform (A) Bioclastic grainstone with intragranular pores. Dominant grains are crinoids and bryozoans. 8664.5 ft (B) Bioclastic grainstone with relatively abundant interparticle porosity (ip). 8748.4 ft. (C)…
Central Basin Platform Photomicrographs from the Wolfcamp reef intervals in the well Unocal Andrews Parker X-1. (A) Abundant moldic vugs (blue areas) are present in bioclastic packstone, and interpreted to result from dissolution of…
compartmentalization Schematic diagram and cross section show the bioherms and shoaling units are capped by a paleo-subaerial surface, immediately below this surface lies the meteoric tight zone. The bioherm unit was sealed at top…
Wolfcamp stratigraphy, cyclicity, and facies distribution in University Block 9 field area, based on image logs. Three gamma- ray log markers can be reasonably well correlated. (After Ruppel, 2001). Columnar section showing…
Wolfcampian seismic stratigraphy of eastern Central Basin Platform, Ector County, West Texas (after Wahlman, 2009, cited from Tasker and Wahlman, 2005) West Texas Geological Society, 03/08/2011, Midland, TX
Model showing facies distribution, geometry and stratigraphic architecture in central and southern Outliers in the Hueco Mountains (After El-Azzi, 2009). Schematic Cross-section of South Cowden Field, Ector County, subsurface of the…
Concluding Remarks The Wolfcampian carbonates in Sierra Diablo and eastern Central Basin Platform contain more shoal grainstone and grain-dominate packstone facies, and shoal grainstones are less abundant in the Wolfcampian strata of…
Concluding Remarks In eastern Central Basin Platform, dissolution created substantial secondary porosity; cementation reduced porosity , created seals, and caused compartmentalization. Many samples from subsurface of eastern Central…
Acknowledgement Funding for the Permian Basin Geological Synthesis Project and this guidebook was provided by the U.S. Department of Energy under contract number DE-FC26-04NT15509. Additional funding was provided by industry sponsors…
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