HOUSTON, Oct. 29-- Encore Acquisition Co., Fort Worth, plans to apply a 22-stage frac in a Three Forks-Sanish (TFS) horizontal well in the Williston basin in order to compare single-stage and ...

At-a-Glance: Solid expandable tubulars (SET) are run smaller and plastically expanded in-situ with a swage to restore or create a near-monobore inside existing casing or open hole. In fracturing, they ...

Horizontal drilling isn't new. Such wells have been drilled for the better part of a century. But combining it with hydraulic fracturing to produce gas and oil from shale is a far more recent ...

Horizontal drilling on the Onnagawa formation of the Fukumezawa oilfield is expected to start in late May as part of this multi-stage fracking pilot programme. To minimise the environmental impact, ...