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The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America. Named for a distinctive outcrop near the village of Marcellus , New York , in the United States , [ 3 ] it extends throughout much of the Appalachian Basin .
The Marcellus natural gas trend is a large geographic area of prolific shale gas extraction from the Marcellus Shale or Marcellus Formation, of Devonian age, in the eastern United States. [2] The shale play encompasses 104,000 square miles and stretches across Pennsylvania and West Virginia, and into eastern Ohio and western New York. [ 3 ]
The potential reserve of Indonesia shale gas is greater than either CBM or conventional natural gas, with 453 tcf and 334 tcf, respectively. [ 42 ] The Indonesian government has established new regulations to reduce the cost of development of shale gas to ease the advancement of shale gas and bolster exploration both offshore and onshore.
The Hamilton Group is a Devonian-age geological group which is located in the Appalachian region of the United States.It is present in New York, Pennsylvania, Maryland, Ohio, West Virginia, northwestern Virginia and Ontario, Canada, [1] [2] and is mainly composed of marine shale with some sandstone.
The upper portion of the Helderberg, or the Kalkberg Formation is host to the Bald Hill ash bed, dated to 417.6 million years ago. [2] The Helderberg is composed chiefly of limestone and dolomite. [3] In Maryland and southern Pennsylvania, the Helderberg is divided into three formations.
Brallier Formation: Db Devonian Harrell Formation: Dh Devonian Hamilton Group: Mahantango Formation: Dmh Devonian Hamilton Group Marcellus Formation: Dm Devonian Onondaga Formation: Do Devonian Old Port Formation: Dop Devonian Old Port Formation Ridgeley Member: Dr Devonian/Silurian Keyser Formation: DSk Silurian: Tonoloway Formation: Sto ...
Marcellus Group/Esopus Formation: Devonian: Meads Creek Formation equivalent: Devonian: Medina Group/Grimsby Formation: Silurian: Medina Group/Power Glen Formation ...
It operates in the Marcellus Formation, where it is the largest land owners. As of December 31, 2021 the company had 17.775 trillion cubic feet of natural gas equivalent of estimated proved reserves, which 67% was natural gas, 31% was natural gas liquids, and 2% was petroleum. [1]