When coiled tubing is run inside of conventional tubing it is often referred to as a velocity string and the space between the outside of the coiled tubing and the inside of the conventional tubing is referred to as themicro annulus. In some cases gas is produced up into the micro annulus.
Here's The First Instagram Photo Ever. Four years ago today on July 16, 2010, Instagram CEO and co-founder Kevin Systrom uploaded the first photo to the app, which was called Codename at the time. This picture of a golden retriever was taken at a taco stand called Tacos Chilakos, and the foot belongs to Systrom's girlfriend, according to a spokesperson for Instagram.
This is an important milestone for Facebook because it's the first time we've ever acquired a product and company with so many users, Zuckerberg wrote in a post. But before Instagram there was the good 'ole World Wide Web. And the first photo ever posted there wasn't exactly pretty. The promotional image of Les Horribles Cernettes, an all-girl comedy band, was posted 20 years ago on July 18.