... concentration, organic matter percentage, and volume of gas and water using conventional logs in the Marcellus Shale (Appalachian basin, USA). Core data and PNS logs are utilized to guide and demonstrate the results. The statistically based reverse model incorporates random errors of logging, and solves mineral...

..., a friction reducer that functions unassisted in high TDS water is needed. This paper describes the use of a Dispersion Polymer Friction Reducer (DPFR) in the Marcellus Shale that addresses this need. A salt-tolerant, water-based friction reducer was developed to allow well operators to reuse high TDS...

... concentration swarm Marcellus Shale fracture toe section microseismic event count production log natural fracture frac stage fracture network aspect ratio wellbore hydraulic fracture gas show Background Gas Technology Institute (GTI) is currently engaged in a research and development...

... fractures. In this paper, we discuss event clusters that occur with a significant degree of overlap between neighbouring stages in the Marcellus Shale. Because the events were monitored with multi-array sensor configuration, the SMTI calculations can be conducted with a high degree of accuracy. SMTI allows...

... Abstract With estimates of recoverable reserves at approximately 500 Tcf, the Marcellus Shale has become one of the main unconventional shale targets in the U.S. The Marcellus is part of the Appalachian Basin and underlies 95,000 sq. miles of Pennsylvania, New York, Ohio, Maryland, and West...

... were designed to have 1 ½ barrels per minute per 0.42" perforation. All stages were pumped as designed. Well D This well was spudded in 2010 and is drilled to a length of 4500 feet. It is landed primarly in the lower section of the Marcellus Shale and undulates below the Cherry Valley Limstone...

... horizontal well design is often overlooked. This paper discusses one operator's approach to fully integrate data captured in the Marcellus Shale in order to optimize horizontal well performance. Based upon insight from the study, the operator wanted to make more informed asset management decisions, improve...

..., and the disposal of the flow back or wastewater from fracturing operations. xxvi A recent U.S. Geological Survey report noted these concerns in a report concerning water resources and gas production from the Marcellus Shale. xxvii According to the USGS report, "many regional and local water management...

... Abstract As interest in the Marcellus shale began to increase early regional characteristics of the shale were derived from existing borehole log data supplemented by sparse core and laboratory data. Some of the earliest work on Devonian shales based on gamma and density logs had a goal...