In directional drilling, cementing is used to plug an existing well, in order to run a directional well from that point. Also, cementing is used to plug a well to abandon it. Cementing is ...

Their primary functions are to serve as a landing spot for the cement plug during primary well cementing and to prevent fluid flow-back during well cementing and case running operations. Float collars ...

Finding and plugging them with cement can be costly ... We follow one ex-oil executive and his team as he hunts down and plugs forgotten oil wells. More from Retail Nine million Americans live ...

Wastewater injection resulting from oil and gas production in Oklahoma caused a dramatic rise in seismic activity in the state between 2009 and 2015. But regulatory efforts to backfill some injection ...