8 research outputs found
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Appraisal of groundwater in storage in the Ogallala aquifer beneath the Duncan Ranch, Hutchinson and Roberts Counties, Texas
This study assesses and evaluates groundwater storage in the Ogallala aquifer beneath Duncan Ranch in Hutchinson and Roberts Counties, Texas. Data used for mapping the base and water table of the Ogallala aquifer included results from 10 boreholes drilled on Duncan Ranch, water-level readings at nearby wells, data on the elevation of the top of red beds in the vicinity of Duncan Ranch, and parameters mapped in the regional computer model of the Ogallala aquifer. Gamma and resistivity logs from the 10 Duncan Ranch boreholes were used as a basis for estimating water quality.
A best estimate of the volume of water in place in sands and gravels of the Ogallala aquifer beneath Duncan Ranch is 380,000 acre-feet. Different estimates of porosity give a range in water volume from approximately 320,000 to 440,000 acre-feet. The best estimate is the midpoint of this range, calculated within each section on Duncan Ranch. Chloride (Cl) concentration estimated for a subset of this volume averages 85 mg/L. Because the resistivity method overestimates Cl concentration of less than 15 mg/L, the true average is probably less than 85 mg/L. All of this water volume might not be recoverable. Hydrogeologic modeling would provide a technical basis for evaluating the performance of various well-field scenarios but was beyond the scope of this study.Bureau of Economic Geolog
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High Frequency (4th order) Sequence Stratigraphy of Early Miocene Deltaic Shorelines, Offshore Texas and Louisiana
DOE-NETL Award Numbers DE-FE0026083 and DEFE0029487Bureau of Economic Geolog
Personal Papers (MS 80-0002)
Bulletin published by the First National Bank in Dallas discussing various topics related to taxes, businesses, agriculture, and banking
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TARGETING RESERVE GROWTH OPPORTUNITIES IN THE NORTHERN GULF OF MEXICO BASIN: TRANSFERRING SECONDARY GAS RECOVERY TECHNOLOGY TO THE OFFSHORE ENVIRONMENT
Neogene Shelf, Slope, and Basin-Floor Gas Plays, Laguna Madre-Tuxpan Continental Shelf, Eastern Mexico* By
Neogene shelf, slope-fan, and basin-floor-fan plays in the Laguna Madre-Tuxpan (LM-T) continental shelf reflect a variety of structural and stratigraphic controls, including gravity sliding and extension, strike-slip motion, salt evacuation, and lowstand canyon and fan systems associated with major uplift of carbonate and volcanic terrains. In a 16- month study of the eastern Mexico continental shelf, conducted jointly by the Bureau of Economic Geology (BEG) and PEMEX Exploraci贸n y Producci贸n, more than 30 plays were defined and mapped over a 50,000-km 2 area that links the Veracruz and Burgos basins. The south part of the LM-T area in the Veracruz Basin contains deep-seated basement faults that provided upward migration for hydrocarbons potentially to charge upper and middle Miocene canyon, slope-fan, and basin-floor-fan systems. In contrast, the Lankahuasa area north of the Veracruz Basin contains major shallowdetachment, listric faults associated with thick Pliocene shelf and inner-slope depocenters. Lower and middle Miocene plays on the Tuxpan Platform northwest of the Lankahuasa area contain thick successions of steeply dipping slope deposits, consisting of narrow slope-channel and lobate slope-fan sandstones encased in siltstones and mudstones. Plays in the north end of the LM-T area in the Burgos Basin contain intensely deformed strat