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Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around 1,200 °C (2,190 °F) in a rotary kiln. The heating process causes gases trapped in the clay to expand, forming thousands of small bubbles and giving the material a porous structure.
In 2013, the company sold 55,000 net acres in the Northern Eagle Ford Shale and 9,600 net acres in the Haynesville Shale to EXCO for aggregate proceeds of $1 billion. [22] In December 2014, the company sold a large portion of its oil and gas assets in the Marcellus Formation and Utica Shale to Southwestern Energy for net proceeds of $4.975 ...
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g., kaolin, Al 2 Si 2 O 5 4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. [1]
Use a porous, highly organic potting soil. I use the very best mix I can buy, and I add 20% to 30% expanded shale to it. Not only does that give it perfect aeration, but it adds more ballast to ...
Exxon Mobil has agreed to pay $59.5 billion for rival Pioneer Natural Resources in a deal that will secure the energy giant’s status as the fracking leader in the all-important Permian Basin—a ...
Chesapeake Energy (NYS: CHK) and other companies that also spent all their money buying up a ton of acreage in multiple shale plays are finally hitting pay dirt as foreign investment dollars pour ...
During 2013, XTO Energy expanded its production in the Appalachian region of the U.S. by nearly 30%. [24] In February 2014, XTO Energy agreed to let American Energy–Utica LLC buy into 30,000 acres of its holdings in the Utica Shale located in the Harrison, Jefferson and Belmont counties of Ohio. [24]
The shale drilling techniques that led to a boom in oil and gas output have also spurred the development of geothermal, which in theory could provide a stable source of power equal to the demand ...