Jereh Sees CO2 Stimulation as a New Trend for Green Oilfield Development

YANTAI, China, March 18, 2015 /PRNewswire/ -- Jereh Group says to pay more attention to CO₂ stimulation technology and sees it as a new trend for oilfield environmental development in light of environment protection and high production efficiency.

Photo - http://photos.prnewswire.com/prnh/20150318/182878

In 2014, Jereh operated its CO₂ fracturing in Jilin, China to have a region of production potential increase with over 15,538 cbft liquefied CO₂ and 370 cbft proppant injection at 9,425psi working pressure, which leads to the largest CO₂ fracturing operation in China.

"This successful operation strengthens our confidence in CO₂ fracturing technology," said Mr. Cui Rizhe, the chief engineer of Jereh R&D center. "Today, the whole industry is challenged with problems including limited water resources, reservoir pollution and decreased well production. These all indicate a transition to a more eco-friendly solution, so CO₂ stimulation can be a trend, especially for European and American shale development."

Firstly, CO₂ fracturing enjoys significant environmental advantages. "Conventionally, at least 100,000 bbl of water would be consumed for only one water-based fracturing operation, while CO₂ can be used instead of water to achieve complete water elimination," said Mr. Cui. "Moreover, the energy provided by CO₂ gasification helps the removal of all residual liquid left in the formation. When liquid CO₂ vaporizes to a gas and flows from the reservoir, it leaves no liquid or chemical damage in the formation."

Then, CO₂ fracturing owns remarkable stimulation effect. Generally, CO₂ fracturing is regarded as a high-cost operation. However, its stimulation effect is 5 or 6 times more than water-based fracturing and 4 times more than foam nitrogen. For shale gas development, CO₂ is more suitable as its adsorption capacity with shale is stronger than that of methane and can replace CH4 in the shale formation. "High production brings about great economic advantage. We believe CO₂ fracturing will play a key role for shale commercialization in the future," said Cui.

"Jereh never stopped CO₂ fracturing R&D over the past decade. By mastering leading CO₂ stimulation technology with our integrated equipment offering, Jereh is committed to the industrial technology revolution," said Mr. Cui.

About Jereh

Jereh Group is an international company specializing in oil and gas equipment manufacturing, oil and gas engineering and construction as well as oilfield technology services. Leveraging its strong R&D, high-quality production facilities and global sales network, Jereh has served customers in over 60 countries.

For more information: www.jereh.com