Article in Press

Volume 1  Issue 2

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Research Article
PORE-PRESSURE PREDICTION FROM SEISMICS: A Case Study of an X-Field in the Niger Delta

*N for Bruno Ndicho, Anumaka.C.C,C.F.R.odumodu

In this work Pore pressure prediction of an X- oil field in Niger Delta Basin was evaluated from seismic reflection data, using the Bower’s and Gardner’s technique of velocity- to-pore pressure gradient. Results show that, the top of overpressure zone is lies at depths varying from 1500m in well 01, through 2048m in well 03 to 1722m in well 05. Sonic log deflections at these intervals all showed significant deflection common with pore pressure zones.

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Research Article

Variations in Gas Content in Organic Matter-Rich Low Maturity Shale; Example from the New Albany Shale in the Illinois Basin

Maria Mastalerz*, Ali Karayigit, LaBraun Hampton, Agnieszka Drobniak

This paper investigates controls on gas content in the Upper Devonian to Lower Mississippian New Albany Shale, specifically addressing the influence of organic matter content and porosity on the desorbed and residual gas contents. The shale samples studied come from Daviess County, Indiana, where the entire New Albany Shale thickness of 40 m (~120 ft) was cored.

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Research Article

Methane to Ethane Ratios of Emissions at Natural Gas Compressor Stations and Storage Facilities

*Derek R.Johnson, April N.Covington, and Nigel N.Clark

We reported methane emissions of five natural gas transmission and storage facilities as part of the Environmental Defense Fund’s Barnett Coordinated Campaign. Samples included reciprocating engine exhausts, engine crankcases, compressor packing or wet seal vents, turbine exhausts, slop tanks, and leaks. Samples were analyzed with an FTIR spectrometer to determine ethane to methane (C2/C1) and propane to methane (C3/C1) ratios by volume. Hydrocarbon ratios have been used in source apportionment – anthropogenic sources include higher alkanes. Gas composition of shale plays varies by play and within the play.

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Commentary Article

SHIST Gas

Salah eddine Beghidja

Until now, fossil fuels have been relatively abundant in meeting the needs of consuming countries. But now the number of
requesting countries is increasing while the usual resources are running out.
This situation generates multiple international tensions and leads to rising prices, threats of supply disruption, as well as
many dangers that compromise peace.

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