Before a North Dakota wheat farmer discovered an oil spill on his land on Sept. 29, the owner of the pipeline had used a high-tech device to detect problems on the line. San Antonio-based Tesoro ...

Remember the end of Raiders of the Lost Ark? The titular Ark of the Covenant was placed in a huge government warehouse with millions of other items—crates and shelves as far as the eye could see. That ...

An in-line inspection device called a smart pig deploys nonlinear harmonic (NLH) sensors against the inside surface of a pipe. Fluid flow propels the pig through the pipeline. The sensors look for ...