Last month, Halliburton announced the development of CleanStim, a new fracking fluid made with ingredients sourced from the food industry. (Despite being made with sources from the food industry, the new fracking fluid should not be considered to be edible, the company warns in a release.)
“Halliburton pioneered fracturing technology more than 60 years ago, but the safe and efficient use of this technology has never been more important or in greater demand than it is right now,” said David Adams, vice president of Halliburton’s production enhancement product service line. “With the announcement today of our CleanStim Formulation and the CleanSuite line, we believe we’ve effectively set a new standard for how unconventional resources may be accessed and produced in the future."
"Acquiring the ingredients from the food industry provides an extra margin of safety to people, animals and the environment in the unlikely occurrence of an incident at the wellsite," the company explained on its webpage, www.halliburton.com
The CleanStim fluid system components include a gelling agent, crosslinker/buffer, breakers and a surfactant. Before use, the CleanStim formulation is mixed at the job site with the water provided by the operator.
Halliburton contends that, in addition to providing environmental benefits, the CleanStim fluid system provides excellent performance in terms of pumpability, proppant (sand or similar particulate material) transport and retained conductivity. Laboratory tests showed over 90 percent retained conductivity after 24 hours of flow. The system is applicable over a broad temperature range providing up to 30 minutes pumping time at 225°F (107°C).
The CleanStim fluid system can be crosslinked and used for conventional gelled fracturing treatments. In addition, the components can be used to provide friction reduction for water fracking treatments commonly used in shale reservoirs.
As a compliment to the CleanStim food-based fracking formula, Halliburton also has introduced CleanStream Service, a method of using ultraviolet light to kill bacteria that can form in the well. The bacteria needs to be eliminated as it can corrode pipes and equipment and impede the flow of energy. Previously, biocides had to be added to fracking fluids to kill the bacteria.
The third part of Halliburton's new fracking system is called CleanWave that uses a portable electrocoagulation component that binds with water contaminants and forces them either to the surface where they can be removed by a skimmer, or to the bottom of the tank leaving clear water above suitable for reuse in drilling and production operations. The technique minimizes fresh water consumption and costs associated with procurement and disposal, the company explains.
All three components are fully explained on a new microsite, www.halliburton.com/hydraulicfracturing
. The microsite is designed to provide the public with information related to the identity and common uses of the additives and constituents generally involved in the hydraulic fracturing process — additives that typically comprise less than one-half of one-percent of the total water-and-sand-based solution.
“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. We believe this effort represents an important and substantive contribution to the broader long-term imperative of transparency,” Adams said.
While the initial focus of the additive disclosure pages are limited to activities taking place in Pennsylvania, where development of the Marcellus Shale is already well underway, the release promised that "Halliburton is committed to continuing to provide hydraulic fracturing fluid disclosure information for every U.S. state in which Halliburton’s fracture stimulation services are in use."
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