Bayesian inversion of synthetic AVO data to assess fluid and shale content in sand-shale media

Shale Stability: Drilling Fluid Interaction and Shale Strength

This paper presents main results of a shale stability study, related to the understanding of shale/ fluid interaction mechanisms, and discusses shale strength correlation. The major shale/ fluid interaction mechanisms: Capillary, osmosis, hydraulic, swelling and pressure diffusion, and recent experimental results are discussed. Factors affecting the shale strength are discussed, and a sonic com...

Isotope approach to assess hydrologic connections during Marcellus Shale drilling.

Water and gas samples were collected from (1) nine shallow groundwater aquifers overlying Marcellus Shale in north-central West Virginia before active shale gas drilling, (2) wells producing gas from Upper Devonian sands and Middle Devonian Marcellus Shale in southwestern Pennsylvania, (3) coal-mine water discharges in southwestern Pennsylvania, and (4) streams in southwestern Pennsylvania and ...

Technically Recoverable Shale Oil and Shale Gas Resources

Technically Recoverable Shale Oil and Shale Gas Resources:

Technically Recoverable Shale Oil and Shale Gas Resources: