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Image shows USGS scientists standing beside a drill rig in protective gear.
September 14, 2015

Core Drilling for the Eagle Ford

USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.

The USGS assesses undiscovered, technically recoverable oil and gas resources for

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Image shows USGS scientists standing beside a drill rig in protective gear.
September 14, 2015

Drilling a Core for the Eagle Ford

USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.

The USGS assesses undiscovered, technically recoverable oil and gas resources for

...
Image shows a drill core in a box with cardboard dividers
September 12, 2015

Eagle Ford Drill Core

A drill core from near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.

The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United

...
Image shows a drill core in a box with cardboard dividers
September 12, 2015

Eagle Ford Drill Core

A drill core from near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.

The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United

...
Image shows a cross-section of a drill core, held in two gloved hands
September 12, 2015

Eagle Ford Drill Core

A drill core from near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.

The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United

...
Image: Oil Spill Samples
May 14, 2010

Oil Spill Samples

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. Each sample was placed in a glass jar detailing the date, time, and location it was discovered.

Image: Samples Are Dissolved
May 14, 2010

Samples Are Dissolved

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. Before performing a liquid chromatograph column analysis on the samples, researcher Pam Campbell dissolves them

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Image: Samples Undergo Nitrogen Evaporation
May 14, 2010

Samples Undergo Nitrogen Evaporation

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. The samples were run through a liquid chromatograph column in order to separate the compounds of the petroleum

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Image: Samples Undergo Liquid Chromatograph Column Analysis
May 14, 2010

Samples Undergo Liquid Chromatograph Column Analysis

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. Following the dissolution of the samples in solvents, the solutions are run through a liquid chromatograph

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Image: Evaporated Samples Are Re-Dissolved
May 14, 2010

Evaporated Samples Are Re-Dissolved

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. The first step of the process was a liquid chromatograph column analysis of the compounds, which separated the

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Image: Oil Spill Mousse
May 14, 2010

Oil Spill Mousse

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. The samples are known as a "mousse" of petroleum, air, sea water, and anything else that was caught up in it

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Image: Mass Spectrometer Analysis Results
May 14, 2010

Mass Spectrometer Analysis Results

On April 20, 2010, the Deepwater Horizon Drilling Platform exploded and sank, causing the largest oil spill yet recorded. Samples from the oil spill were collected by Louisiana USGS scientists Greg Swayze and Charlie Demas and sent for analysis in Menlo Park, CA. After undergoing initial separation by the liquid chromatograph column, nitrogen evaporation, then final

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