In the middle and late stages of oil and gas field development, improving the accuracy of resistivity measurement is of great significance in assessing the residual oil saturation of reservoirs. The ...

Foothills Pipe Lines Ltd., Calgary, evaluated two approaches to solving pipeline-capacity delivery problems around the Empress, Alta., extraction plants (Part 1, OGJ, June 24, p. 38). This capacity ...

Second-stage output filters are often used to attenuate the output voltage ripple of a switching power supply. They can also isolate one load circuit from another. In this power tip, I will describe ...