(ICIS) -- The resurgence of oil and gas drilling in the US over the last few years has fuelled tremendous growth in the proppant market, industry experts said on Monday. Proppants are used in the oil and gas industry for hydraulic fracturing (fracking), which is used to extract oil and natural gas from shale formations deep underground. Proppants prop open fissures in shale rock, releasing oil and gas and maximising flow capacity from the reservoir to the wellbore.
While proppants have been used in the oil and gas industry for over 30 years, they have recently surged in popularity because of the current shale boom, said James Ely, the president of petroleum engineering consulting firm Ely & Associates, which is based in Houston, Texas.
Conventional vertical wells only require one fracturing stage, whereas horizontal wells can have up to 14, with each stage using about 300,000 lbs (136 tonnes) of proppants. ⌠Instead of running 200,000 to 300,000 lbs, companies might pump 5m lbs, Ely said.
As long as companies drill horizontally, proppants are going to be in high demand, Ely said.
Several companies have benefitted from the increased demand for proppants, including Momentive Specialty Chemicals, which specialises in the resin-coated variety.