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Approach Resources Inc. is an independent oil and natural gas company headquartered in Fort Worth, Texas.

Wireline continuous coring (WCC) has been adapted from the mining industry for unconventional resources. This paper is aimed at identifying and addressing complications experienced in the use of WCC.

A new multilayer boundary‑detection service has been introduced to resolve the geological uncertainty associated with horizontal wells in Bohai Bay. Geosteering and real time reservoir characterization were used to reduce the uncertainty.

Saturation-height functions (SHFs) play a key role in reservoir description and in quantifying oil in place. The functions must compare well with other sources of water saturation (Sw), such as core measurements and well-log interpretations. This study reconciles different sources of Sw.

Successful rejuvenation of two declining fields was enabled through innovation in both engineering and procurement strategy.

Gas exploration activity in North America looks like it is in the doldrums. In the past 12 months, gas-directed North American rig counts have fallen by almost half.

On the day last February that the US Geological Survey (USGS) came out with a report saying up to 2 billion bbl of oil could be produced from shale formations on the North Slope of Alaska, a company was already planning to drill on its 500,000-acre lease.

The Baker Hughes MaxCOR rotary sidewall coring service provides fast, accurate 1.5‑in. (3.8-cm) diameter core samples with 213% more volume than the standard Baker Hughes PowerCOR rotary sidewall coring samples.

Research and development firm Battelle is working on a new induced-seismicity study that aims to help wastewater disposal well operators in Ohio stay on the good side of state regulators.

Shell has reaffirmed its commitment to the shale business and views it as a growth opportunity moving into the 2020s