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Northern Mariana Islands

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Northern Mariana Is.

Northern Mariana Islands

Bulletin
Interpretation
Environmental Geosciences

Recently Added in Bulletin

Bulletin Article

Multiple thrust detachments and their implications for hydrocarbon accumulation in the northeastern Sichuan Basin, southwestern China

The authors address the structural deformation and evolution of the detachment thrust system and its effects on hydrocarbon accumulation in the northeastern Sichuan Basin, China. The lower structural interval has high-quality source rock and a reservoir-trapping evolutionary history.

Added on 18 January, 2021

Bulletin Article

Brittleness modeling selects optimum stimulation zone in shaly source rocks in the Whangai Formation, New Zealand

The primary goal of this study was to develop an integrated methodology to define the best stimulation intervals in the Whangai Formation of New Zealand’s East Coast Basin. Evaluating the brittleness of shale reservoirs will help to identify zones to focus on hydraulic fracturing.

Added on 18 January, 2021

Bulletin Article

Fractal characteristics of pore networks and sealing capacity of Ordovician carbonate cap rocks: A case study based on outcrop analogues from the Tarim Basin, China

The purpose of this study is to analyze the pore structures of Yingshan Formation carbonate cap rocks, Tarim Basin, China, and their fractal dimensions in order to unravel the link between fractal variations and rock sealing capacity. Sealing capacity decreases with increasing quantity of macropores.

Added on 18 January, 2021

Bulletin Article

Induced seismicity risk management: The problem of disappearing faults

The risk of injection-induced earthquakes is managed through buffer zones around previously mapped faults. However, decades-old fault identification using now obsolete methods could misidentify other features as faults. Regulations should take vintage surveys into account.

Added on 18 January, 2021

Bulletin Article

Origin and charging histories of diagenetic traps in the Junggar Basin

In the Junggar Basin, accumulations in the sandy conglomerate formed in distributary channels of the fan-delta front, and reservoir quality was controlled by differential diagenesis caused by detrital feldspar content, paleogeotemperature, and formation fluids. Few studies have investigated this type of trap.

Added on 18 January, 2021

Bulletin Article

Characterization of five unconventional diatomaceous (opal-A) reservoirs, Monterey Formation, San Joaquin Valley, California

The diatomaceous reservoirs of the San Joaquin Valley, California, have puzzling features. They are continuously oil-saturated with poorly defined oil–water contacts. The best producers have the best oil saturations. The five reservoirs in this study do not represent a single homogenous group and have clear differences.

Added on 18 January, 2021

Bulletin Article

Experimental determination of porosity and methane sorption capacity of organic-rich shales as a function of effective stress: Implications for gas storage capacity

The gas storage capacity of shales can be strongly reduced under the influence of effective stress due to the decrease of specific pore volume. Also, a strong reduction of the excess sorption capacity occurs upon loading the samples up to 40 MPa overburden pressure.

Added on 18 January, 2021

Bulletin Article

Life span of oil reservoirs: Examples from three old reef pools in Alberta, Canada

Declining history of oil production of oil pools in Alberta, Canada, can be divided into two phases: a short (4-11 yr) substantially declining phase and a long (25-35 yr) gradually declining phase. Both can be described by power regressions with high correlation coefficients of 0.95-0.99.

Added on 18 January, 2021

Bulletin Article

Coupled stratigraphic and petroleum system modeling: Examples from the Ordos Basin, China

Comparative modeling of the tight oil and tight gas systems in the Ordos Basin has shown that integrating sedimentary heterogeneities into basin models can lead to significantly different and more realistic model results. The authors proposed coupled stratigraphic–basin modeling offers an alternative for future basin and petroleum system modeling.

Added on 21 December, 2020

Bulletin Article

Passive versus active salt diapirism

Existing definitions for active and passive salt diapirism are ambiguous and overlapping. The authors propose that active diapirism be reserved for uploading and folding of a thick roof during diapir rejuvenation, while the absence of a thin roof should not be the key defining factor for passive diapirism.

Added on 21 December, 2020

Recently Added in Interpretation

Recently Added in Environmental Geosciences

Environmental Geosciences Article

Hydrogeochemical controls on brackish groundwater and its suitability for use in hydraulic fracturing: The Dockum Aquifer, Midland Basin, Texas

To better understand controls on the origin and evolution of brackish groundwater, the hydrogeochemistry of brackish groundwaters was studied within the Triassic Dockum Group across the Midland Basin in Texas. The suitability of Dockum Aquifer water for use in hydraulic fracturing fluid was examined because the area overlies the largest and most productive tight oil province in the United States.

Added on 01 June, 2018

Environmental Geosciences Article

Quantitative assessment of the runoff index in an urbanized watershed

Urbanization modifies the natural water cycle. In this study, a weighted-rating multicriteria analysis was adopted to quantify the runoff index and to assess the impact of urbanization on the water cycle.

Added on 01 June, 2018

Environmental Geosciences Article

Facies associations and chemostratigraphy of the Lower Cretaceous Kurnub Group and their boundaries, King Talal Dam section, northwestern Jordan

Integrated petrographic and chemostratigraphic studies have enabled the identification of sequence boundaries, sequence stratigraphy, and their system tracts for the Lower Cretaceous strata of the Kurnub Group (Jordan); the latter is underlain by the Jurassic (Callovian) strata and overlain by the Cretaceous (Cenomanian).

Added on 01 March, 2018

Environmental Geosciences Article

Groundwater resources evaluation using geospatial technology

Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of lithologic formations. The advent of remote sensing and geographic information systems (GIS) has opened up new vistas in groundwater prospect evaluation, exploration, and management.

Added on 01 March, 2018

Environmental Geosciences Article

Strontium isotopes as a potential fingerprint of total dissolved solids associated with hydraulic-fracturing activities in the Barnett Shale, Texas

A dramatic increase in unconventional drilling that utilizes hydraulic fracturing to extract oil/gas over the past decade has led to concern over handling and management of produced/flowback water (PFW; hydraulic-fracturing wastewater) because the potential exists for its accidental release into the environment.

Added on 01 December, 2017

Environmental Geosciences Article

High-resolution satellite imagery applied to monitoring revegetation of oil-sands-exploration well pads

To achieve reclamation certification, oil-and-gas operations in Alberta, Canada are required to monitor the revegetation of idle well pads that no longer support operations. Currently, monitoring is completed by oblique, helicopter-collected photography and on-the-ground field surveys.

Added on 01 December, 2017

Environmental Geosciences Article

State of stress in the Illinois Basin and constraints on inducing failure

The stress regime in the Illinois Basin was investigated to assess how the rock column might respond to the injection of fluids, including coproduced formation brines and supercritical CO₂.This response is a concern because injection practices could increase pore fluid pressure and potentially induce seismicity.

Added on 25 August, 2017

Environmental Geosciences Article

Geothermal energy potential of the Western Canada Sedimentary Basin: Clues from coproduced and injected water

Development of geothermal energy in sedimentary basins is an attractive option given the availability of data from the oil and gas industry. Previous geothermal studies in sedimentary basins have focused on temperatures and petrophysical properties.

Added on 25 August, 2017

Environmental Geosciences Article

Structural architecture of the Farnsworth oil unit: Implications for geologic storage of carbon dioxide

Surface and airborne gas monitoring programs are becoming an important part of environmental protection in areas favorable for subsurface storage of carbon dioxide. Understanding structural architecture and its effects on the flux of fluids, specifically CO₂ and CH₄, in the shallow subsurface and atmosphere is helping with designing and implementing next-generation monitoring technologies, including unmanned aerial vehicles (UAVs).

Added on 01 June, 2017

Environmental Geosciences Article

Methods and challenges to locating legacy wells in western Pennsylvania: Case study at Hillman State Park

This study demonstrates the application of aeromagnetic surveys for locating late 1800s-era oil and gas wells in Hillman State Park. The study area in southwestern Pennsylvania offered several unique challenges to locating legacy wells.

Added on 01 June, 2017

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Northern Mariana Is.

Northern Mariana Is.

Northern Mariana Is.

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Northern Mariana Is.

Northern Mariana Is.

Northern Mariana Is.

Recently Added in Bulletin

Recently Added in Interpretation

Recently Added in Environmental Geosciences

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Bulletin, monthly peer-reviewed journal of the AAPG

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Quarterly journal of the Division of Environmental Geosciences (DEG)

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Interpretation, quarterly geophysics-focused, peer-reviewed journal of the SEG and AAPG

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