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Category: Petroleum and Gas

Open- Versus Closed-Circuit Filtration for Hydraulics Performance

At a Glance: Know the basics of open- and closed-circuit filtration designs. Factors to consider when specifying a return line filter system. Selecting the appropriate filtration system when designing a hydraulic circuit is critical for maintaining fluid cleanliness and preventing premature wear, both of which contribute to optimal system operation and service life. Contamination of the hydraulic system can occur during assembly and during operation. Contamination can come in many forms, including water or other fluids, air, solid particles, or…

Mobile Technology Carts on the Move

What you’ll learn: Which types of medical and industrial devices can be mobilized on workstations with integrated power sources. Understand the two types of competing power architectures that are used power mobile workstations—in-base power or swappable battery systems. Understand the trends with Li-ion cell chemistry used in medical and industrial workstations.   If you visit a hospital hallway or patient room, you will see many portable medical devices mounted on mobile carts or technology workstations, commonly called Workstations-on-Wheels. These IT…

Simple Thermometer Uses Frequency Changes to Measure Cryogenic Temperatures

NASA and other agencies that manage satellites over the course of their missions in orbit have difficulty tracking how much fuel is in its fuel tanks as the mission progresses. That’s because in orbit, fuel floats and sloshes around due to the low gravity in space, making it difficult to gage. To solve that problem, engineers at the National Institute Technology (NIST) devised a fuel gage that relies on a low-cost 3D imaging technique known as electrical capacitance volume tomography…

Solar device can sterilize medical tools in off-grid areas without the need for electricity

Autoclaves, which are used to sterilize medical tools, require a steady supply of hot, pressurized steam. Researchers at MIT and the Indian Institute of Technology have come up with a way to generate that steam passively, using just the power of sunlight, to help maintain safe, sterile equipment at low cost in remote locations. This photo shows an example of the new autoclave developed by researchers. Credit: Courtesy of the researchers. Edited by MIT News. Autoclaves, the devices used to…

Innate and diet-induced changes in reward area may explain why some mice are prone to overeat — ScienceDaily

A combination of innate differences and diet-induced changes to the reward system may predispose some mice to overeat, according to research recently published in JNeurosci. Food is fuel, but the rising levels of sugar and fat in modern diets make the brain treat it as a reward. One brain region called the ventral pallidum (VP) serves as a hub between reward areas and the hypothalamus, a region involved in feeding behavior. Intertwining food and reward can lead to overeating and…

Smart concrete could pave the way for high-tech, cost-effective roads

Every day, Americans travel on roads, bridges and highways without considering the safety or reliability of these structures. Yet much of the transportation infrastructure in the U.S. is outdated, deteriorating and badly in need of repair. Of the 614,387 bridges in the U.S., for example, 39% are older than their designed lifetimes, while nearly 10% are structurally deficient, meaning they could begin to break down faster or, worse, be vulnerable to catastrophic failure. The cost to repair and improve nationwide…

Tuatara, the World’s Fastest Production Car: A Gallery

This past October, a Tuatara sports car designed and built by SSC North America set an as-yet-unverified speed record for a production car on a seven-mile stretch of long, flat road in Nevada. It hit over 331 mph on one run, but it had to be averaged with another run travelling in the opposite direction for the record of 316.11 mph. The averaged runs must be over the same route but in the opposite direction to balance out effects of…

Accurate, faster hydraulics models for safer drilling for oil and gas

Credit: CC0 Public Domain Ph.D. candidate Mohammad Hossein Abbasi of the TU/e Department of Mathematics and Computer Science has developed numerical tools to support the safer, cheaper and more efficient drilling of deep wells for exploitation of natural resources. His models are accurate enough for virtual drilling scenario testing and drilling automation, and speed up simulations up to 70 times. Drilling of deep wells offers enormous value for global economies, for instance for the exploration of minerals, geothermal energy, oil…

An underwater navigation system powered by sound

MIT researchers have built a battery-free pinpointing system dubbed Underwater Backscatter Localization (UBL). This photo shows the battery-free sensor encapsulated in a polymer before it is dipped into the Charles river. Credit: Reza Ghaffarivardavagh GPS isn’t waterproof. The navigation system depends on radio waves, which break down rapidly in liquids, including seawater. To track undersea objects like drones or whales, researchers rely on acoustic signaling. But devices that generate and send sound usually require batteries—bulky, short-lived batteries that need regular…

Multi-drone system autonomously surveys penguin colonies

The Adélie penguin colony at Cape Crozier. Credit: Parker Levinson Stanford University researcher Mac Schwager entered the world of penguin counting through a chance meeting at his sister-in-law’s wedding in June 2016. There, he learned that Annie Schmidt, a biologist at Point Blue Conservation Science, was seeking a better way to image a large penguin colony in Antarctica. Schwager, who is an assistant professor of aeronautics and astronautics, saw an opportunity to collaborate, given his work on controlling swarms of…