As a response to outcries from environmentalists, the public, and lawmakers for disclosure of what chemicals are being used in the fracking process to collect natural gas from the Marcellus Shale deposits under Pennsylvania, the largest supplier of these chemical formulations, Halliburton of Houston, Texas, has issued a press release, and placed this information in great detail, on its website.
With its press release, Halliburton comes clean and goes green by announcing a new fracture fluid system comprised of materials sourced entirely from the food industry. The solution, which will be marketed under the trade name CleanStim™ Formulation, is an integral part of the company's new CleanSuite™ line of products, which includes the CleanStream® Service that uses UV light instead of additives to control bacteria, and the CleanWave™ System to treat wastewater at the well site, allowing it to be reused and recycled.
As part of their effort to come clean and go Green, Halliburton launched a web site to provide the public with information related to the identity and common uses of the additives involved in the hydraulic fracturing process. These additives, "typically comprise less than one-half of one-percent of the total water-and-sand-based solution," said David Adams, vice president of Halliburton's production enhancement product service line.
"Halliburton has just made available new web pages to emphasize our forthright disclosure of the additives and constituents that are used for several typical wells in Pennsylvania," Adams added. "We believe this effort represents an important and substantive contribution to the broader long-term imperative of transparency."
The disclosure pages are limited to Marcellus Shale activities taking place in Pennsylvania.
The gas-rich Marcellus Shale, located over a mile below Pennsylvania and surrounding states, has held its gas for millions of years in layers on impermeable rock. To get at the rock, exploration companies drill down to the strata, fracturing the rock with a mixture of water or nitrogen, sand and chemicals. For years, the make-up of these fracking chemicals has been kept a closely guarded secret. Now the secret is out.
What's in the fracking chemicals? The fracking chemicals have to solve several problems in the sand slurry that is injected. They help suspend the sand enabling it to be delivered into the fracture, and they reduce the surface tension of the water in contact with the reservoir to improve production.
The table is a composite of chemicals used in the three types of Halliburton fracking formulations: the Pennsylvania Water Frac Formulation, the Pennsylvania Hybrid Frac Formulation, and the Northeast Foam Frac Formulation.