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Sedimentology and Stratigraphy

Explorer Policy Watch

This month marks the twentieth month of operation for the AAPG Geoscience and Energy Office in Washington, D.C., and we will debate on energy legislation and defense spending.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Today’s high product prices and demand for oil make tertiary recovery projects important and even necessary. Carbon dioxide injection, better known as CO2 flooding, is a technique of choice for enhanced recovery from older oil fields. Ironically CO2 tertiary recovery projects and sequestration research are stymied by the same, restrictive problem: There isn’t enough CO2.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Eduardo Berendson, Valary Schulz, and Rebecca Dodge share their experience and expertise as part of AAPG's Visting Geoscientist Program, a program that brings professional geoscientists together with students from throughout the United States, Canada and 30 other countries.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The 14 AAPG Position Statements have been reviewed and updated by the DPA Government Affairs Committee and approved by the AAPG Executive Committee, including the much-discussed Climate Change statement.

American Association of Petroleum Geologists (AAPG)
Explorer Director’s Corner

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.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Basin modeling traditionally has been used in oil and gas exploration to estimate source rock maturity and to determine charge -- but in recent years, the range of basin modeling applications has expanded.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Given the ongoing debate about the causes of global warming, there’s at least one generally accepted fact: “Greenhouse” gases present in the atmosphere prevent heat from escaping into space.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The Executive Committee is considering member comments on the new AAPG Position Statement on Global Climate Change that has been proposed to replace the present statement.

American Association of Petroleum Geologists (AAPG)
Explorer Policy Watch

As the William L. Fisher American Geological Institute Congressional Science Fellow, I’ve realized how important it is to have the input of scientific experts when making new policies on energy and natural resources.

American Association of Petroleum Geologists (AAPG)
Explorer Division Column DEG

Spring has been a busy time for DEG with the AAPG Annual Convention in Long Beach, Calif., and the Southwest Section meeting in Wichita Falls, Texas.

American Association of Petroleum Geologists (AAPG)
Workshop
Lviv, Ukraine
Thursday, 21 September Friday, 22 September 2023, 8:00 a.m.–5:00 p.m.

Join us for a workshop where experts will  explore the Carpathian foreland and the Dnieper-Donetsk rift basins with a focus not only on hydrocarbons, but the utilization of geothermal resources, hydrogen exploration and CCUS.

American Association of Petroleum Geologists (AAPG)
VG Abstract

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.

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Request a visit from Sherilyn Williams-Stroud!

American Association of Petroleum Geologists (AAPG)
DL Abstract

Local sea-level changes are not simply a function of global ocean volumes but also the interactions between the solid Earth, the Earth’s gravitational field and the loading and unloading of ice sheets. Contrasting behaviors between Antarctica and Scotland highlight how important the geologic structure beneath the former ice sheets is in determining the interactions between ice sheets and relative sea levels.

Request a visit from Alex Simms!

American Association of Petroleum Geologists (AAPG)
VG Abstract

This is a less-technical education topic. It can be condensed to an hour or given as 2 two-hour sessions. It stresses selected controversial aspects of fracking that touch some combination of environment and economics and includes a short video of how fracking is done.

Request a visit from David Weinberg!

American Association of Petroleum Geologists (AAPG)
VG Abstract

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!

American Association of Petroleum Geologists (AAPG)

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