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A brief primer on managed pressure drilling (MPD) and how it compares with underbalanced drilling (UBD).

At the 2016 Unconventional Resources Technology Conference, Barry Donaldson, vice president of global sales and marketing at Tetra Technologies, discussed possible cost-effective water management strategies.

Christine A. Ehlig-Economides discusses what a career in pressure-transient testing is like.

Materials smaller than the width of a human hair are contributing to improved hydraulic fracturing and other areas of oil and gas technology.

It may not matter whether the IOCs or the NOCs are in charge. The work to be done is the same and the same people will likely be doing it. Unconventional resources already comprise 40% of production in North America and they are expected to grow globally.

Neeraj Gupta of the Battelle Memorial Institute and Nigel Jenvey of Maersk Oil and Gas comment on technology applications for carbon emission control and enhanced oil recovery.

A  service using pressure data from a few nearby unconventional wells to map fracturing will soon be for sale.

Approximately 5% of world annual gas production is being flared or vented. This is equivalent to approximately 110–140 billion m3 (Bcm) of gas, and equates to the combined gas consumption of ­Central and South America in 2013.

Our problem is that we are dealing with multiphase, multicomponent fluids whose compositions change spatially and temporally inside imperfectly understood heterogeneous reservoirs whose characteristics also change spatially and temporally.

This work experimentally investigates the behavior of an intermittent multiphase liquid/gas flow that takes place upstream of an electrical submersible pump (ESP).