Lightweight oil-well cement eliminates the need for the much expensive and problematic
multi-stage cementing approach for isolating shallow intervals. However, the generally low …

Lost circulation is a very common and expensive problem during drilling and cementing
operations in the oil and gas industry. The lost circulation problems encountered during …

Foamed-cement systems are widely used in deepwater-cementing operations because of
their various favorable attributes compared with conventional cement systems. For instance …

Computed-tomography (CT) scanning has become a mainstay among scientists
(Wildenschild and Sheppard) because it enables nondestructive observation of material …

Foamed cements are coarse dispersions of a base cement slurry, a gas (usually air or
nitrogen), a foaming surfactant and other materials A new foamed cement, designed for …

Foamed cement has been used extensively across a variety of applications for oil and gas
well cementing, including deepwater riserless cementing, low fracture gradient cementing …

Foamed-cement systems are widely used in deepwater cementing operations because of
their various favorable attributes compared to conventional cement systems. For instance, in …

The largest discovery of oil and gas in recent years is situated in the Volga-Ural field in
Orenburg Oblast. The field was discovered in 2005. The development target is the Devonian …

The technical community of offshore drilling has its own jargon and field units that may
change depending on the region or operator. We will try to explain some of the jargon along …

This paper covers the development, field testing and execution of a foamed spacer fluid on a
conventional oil/gas block in India. It discusses the equipment and processes necessary to …