To fracture or not to fracture—that has been the question dogging valve-in-valve (ViV) TAVI. The answer, new data suggest, is that fracturing the preexisting bioprosthetic aortic valve may be the best ...
Oil and Gas Development Co. Ltd. Geologically realistic models generated from raw seismic velocities can predict pore pressure and fracture gradients useful in designing safe, economic predrill mud ...
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 ...
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