Companies throughout the industry (operators, service companies, proppant and chemical providers] have dedicated resources to further study proppant behavior inside a fractured formation
. Research is ongoing and will continue with the 2018 PTRC, by expanding into chemical technologies centered around proppant-carrying capabilities.
(2) Based on the established model, new type curves are established to analyze the flow characteristics, which can be divided into seven stages: (a) linear flow in artificial main fracture; (b) coupled boundary flow; (c) early linear flow in fractured formation
; (d) mid radial flow in the microcracks of the formation; (e) mid radial flow or pseudo steady flow; (f) mid crossflow; (g) closed boundary flow.
As to contamination of groundwater, the fracking takes place several thousand feet below the groundwater sources, and since there must be an impermeable layer between the gas-bearing formation and the surface--or else the gas would long since have escaped--there is no communication between the fractured formation
and the ground water source.
Jensen, "Hierarchical modeling of flow in naturally fractured formations
with multiple length scales," Water Resources Research, vol.
can cause deflections in drilling," Crumpton continued.
Mahrer  considered fracture network would form during fracturing process of naturally fractured formations
. Beugelsdijk et al.
These oil- rich and naturally fractured formations
have many similarities to North America's Bakken source- rock formation in the successful Williston Basin.
AOK will look to re-work existing wells but the key upside is horizontal well technology that increases yield from vertically fractured formations
With each successive leg dedicated to either ridge-crest or crystalline rock drilling, ODP has gained better understanding of the problems posed by bare rock and fractured formations
. The results from Legs 106, 109, 118, and TABULAR DATA OMITTED 147, together with advice from the mining drilling industry, led ODP to develop a slimhole high-speed coring system, named the Diamond Coring System or "DCS."
These oil-rich and naturally fractured formations
have many similarities to North America's Bakken source-rock formation in the successful Williston Basin.
Zurdo, "Drilling through hinghly fractured formations
: a problem, a medel, and a cure," in Proceedings of the SPE Annual Technical Conference and Exhibition, October 1992.
complicate production and increase chances of frac-outs," he continued.