Dilution-based dual-gradient drilling (DGD) reduces casing strings and drilling costs while increasing hole size at total depth by injecting mud down an artificially-created annulus with a different ...

A new gravity-assisted steam flooding technique helped control steam-channeling problems in the Liaohe heavy-oil area in China. Reservoir fluid-mechanics analysis showed that a large dip angle hinders ...

Wireline logging—specifically wireline formation testing and pressure surveys—provides direct, depth-referenced measurements of in-situ reservoir pressure and fluid gradients, the backbone of ...