super fracking, page-2

Halliburton, the No. 1 provider of fracking services, also based in Houston, is trying to reduce the amount of materials and labor used on each well. It’s rolled out RapidFrac, a series of sliding sleeves that open throughout the horizontal well bore to isolate zones for fracking. Fracking fluid is then injected at high pressure through multiple holes exposed by the sliding sleeve, cracking the surrounding rock. The process can be faster and cheaper than the most popular fracking method, which involves sending an explosive charge down the well to blast one hole at a time.