Will Those Responsible for O.C. Oil Spill Pay for the Damage? - 25 October, 2021 07:27 AM
Groups Want U.S. to Suspend Oil Leases Off Calif. Coast - 21 October, 2021 07:42 AM
An early example of Barrow’s “outside the box” approach to problems came while exploring offshore Santa Barbara, Calif.
Planning continues for the 2008 AAPG Annual Convention in San Antonio, with the official meeting announcement and technical program due in January.
The industry’s ongoing infatuation with Canada’s oil sands, the Rockies’ tight gas sands and most any shale deposit anywhere might suggest the long-productive and mostly conventional Gulf Coast reservoirs have lost their allure. Not the case.
To assure the future energy supply, more well-educated and trained geologists, geophysicists and engineers are needed. Learn what AAPG is doing to attract, assist and encourage students in geosciences?
It's time for the AAPG, its Sections, Regions and sister societies to start their annual technical program presentations at meetings and conferences.
Geothermal energy is used to produce electricity in 24 countries. Leading the way is the United States, followed by the Philippines, Mexico, Indonesia and Italy.
In offshore areas such as the deepwater Gulf of Mexico, it’s not uncommon for oil emanating from source rocks to bypass natural trapping mechanisms and leak upward to the seafloor.
Examples of deep-water outcrops, as examined in AAPG Studies in Geology 56 is a publication that exposes some exposures that matter a lot to geologists.
Once more we are at the start of a new fiscal year for AAPG -- and once again it arrives after an extremely busy year for AAPG.
Student awards for technical papers and posters presented at both last year’s AAPG International Conference and Exhibition in Perth, Australia, and this year’s Annual Convention in Long Beach, Calif., have been announced by the Convention Organizing and Student Chapters committees.
Hydraulic fracturing has been around for decades. This talk describes some of the first applications of the technology, how it developed over time, and our current understanding of its impacts with some discussion of both water and earthquake hazards.
Request a visit from Sherilyn Williams-Stroud!
Analysis of microseismicity induced by hydraulic fracture stimulation in the Marcellus Shale shows changes in stress state for different zones of failure. During the treatment, shear failure occurs on both the J1 and J2 fracture orientations in response to different maximum stress orientations, indicating localized changes in the orientation during the treatment. Reactivation of a fault near the wellbore is associated with failure mechanisms with a higher volumetric component, indicating possible inflation of faults and fractures by the introduction of the slurry. Quantification of the stress conditions that are associated with inflation could potentially be used to optimize the stimulation by identifying which fractures will preferentially take on slurry volume.
Microseismicity induced by hydraulic fracture stimulation of a horizontal well was mapped with a near-surface buried array. Distinct linear trends of events were not parallel to the direction of fast shear wave polarization measured in the reservoir with a crossed-dipole anisotropy tool. Analysis of core from a nearby well revealed numerous calcite-filled fractures that did not induce shear wave polarization, but did significantly impact the failure behavior of the reservoir rock during the stimulation treatment. Hydraulic fracture simulation with DFN modeling and source mechanism analysis supports the interpretation of reactivated existing fractures rather than the formation of hydraulically-induced tensile fractures.