Report Says Exxon Knew Pegasus Pipeline Was at Risk, But Still Pushed it Harder

By -
From InsideClimate News:
Since at least 2006,ExxonMobil has known that its 1940s-era Pegasus pipeline had many manufacturing defects like the faulty welds that recently sent crude oil spewing into an Arkansas neighborhood. The company also knew that the seams of the pipe have been identified by the industry as having another dangerous flaw: They are especially brittle, and therefore more prone to cracking. 
"Having a crack or flaw in a pipeline is a whammy," said Patrick Pizzo, a professor emeritus in materials engineering at San Jose State University. "But having a crack embedded in brittle material, such as the heat-affected zones of the pipeline seams—that's a double whammy." 
Despite those inherent risks, Exxon added new stresses to the Pegasus by fundamentally changing how it used the line. It began carrying a heavier type of oil, reversed the direction of the flow and increased the amount of oil that surged through it. 
Old pipelines that are well maintained and carefully monitored can withstand such changes, experts say. But doing so is significantly harder for lines that—like the Pegasus—were built from pre-1970 pipe that is predisposed to cracking and seam corrosion problems.
Read the whole article here.

Connect with us on Facebook and Twitter!

Popular posts from this blog

Fracktivist in Dimock Releases Carefully Edited Video, Refuses to Release the Rest

By -
Image
From Energy in Depth: There is something very strange going on along Carter Road, in Dimock, Pennsylvania, and I’m not speaking of natural gas, methane migration, contamination, litigation or even the extensive water testing there by the EPA and others.  No, I’m talking about a new “Watergate” conspiracy, complete with 18 minutes of missing tape (well, video, actually). It seems the ever-present Green Party member and  naturist   Vera Scroggins  (a/k/a  Vera Duerga ) has posted a video of Craig Sautner meeting with the EPA.  Mysteriously, the video is but 14 seconds in length, cutting off conversation in what is obviously mid-stream.  It raises a question Craig Sautner, like  Ronald Reagan in Kings Row , might have asked, “Where’s the rest of me?’  Carter Road, isn’t Kings Row, of course, (at least not until you arrive at  the mansion Scott Ely, one of the Dimock litigants, is building with his royalty money ), but there appears to be...
Read more

The Second Largest Oil and Gas Merger - Cabot and Cimarex

By -
Image
       Due to investor pressure, the U.S shale drillers are being pushed to improve financial and operational performance after a few years of poor returns. Even though the industry has improved its numbers, when compared to last year, investors still want more to be done for them to earn more money.      That's why two mid-tier shale drillers, Cabot and Climarex, have decided to merge in order to eliminate $100 million in annual costs, which means more money for the investors. This all-stock transaction is valued at about $7.4 billion, which is relatively high for the oil and gas sector.      The new entity will be renamed and the headquarters located in Houston, Texas. Cabot shareholders will own 49.5 percent of the new entity, and Climarex the rest.       The Cimarex-Cabot merger will address the investor's demand for a higher amount of returning cash. The initial plan is to pay a 50-cent-per-share special dividen...
Read more

Do You Know The History of Fracking?

By -
Image
  In 2018, 59% of total oil production in the U.S came from hydraulic fracking, which means it accounted for more than two-thirds of domestically manufactured gas. By 2024, fracking will reach an astounding $68 billion market value! Of course, fracking is not a new drilling method as you can trace it back hundreds of years. That's why we want to consider the history of hydraulic fracturing (fracking). We will be stating historical facts about it and focusing on the major historical occurrences that have influenced modern-day fracking. Pre-Fracking Days The idea of fracking started back in 1862 when Edward A.L. Roberts (Civil War veteran) witnessed Confederate soldiers exploding artillery rounds into a canal that obstructed a battlefield. At the time, Edward A.L. Roberts called it superincumbent fluid tamping. On April 26th, 1865, Edward A.L. Roberts began experimenting with exploding torpedoes, which consisted of lowering a torpedo containing an amount of powder from fifteen to tw...
Read more