background preloader

New topics

Facebook Twitter

Hydraulic fracturing. The first experimental use of hydraulic fracturing was in 1947, and the first commercially successful applications were in 1949. As of 2012, 2.5 million hydraulic fracturing jobs have been performed on oil and gas wells worldwide, more than one million of them in the United States.[4][5] Frac job in progress Geology[edit] Mechanics[edit] Fracturing in rocks at depth tends to be suppressed by the confining pressure, due to the immense load caused by the overlying rock strata and the cementation of the formation.

Veins[edit] Dikes[edit] Low-level minor intrusions such as dikes propagate through the crust in the form of fluid-filled cracks, although in this case the fluid is magma. Non-hydraulic fracturing[edit] Fracturing as a method to stimulate shallow, hard rock oil wells dates back to the 1860s. Hydraulic fracturing in oil and gas wells[edit] The relationship between well performance and treatment pressures was studied by Floyd Farris of Stanolind Oil and Gas Corporation. Uses[edit]

Programming C

Invent Your Own Computer Games with Python. Chapter 1 Read online: Chapter 1 - Installing Python Videos: Chapter 2 Read online: Chapter 2 - The Interactive Shell Chapter 3 Read online: Chapter 3 - Strings Download source: hello.py Copy source to clipboard: Use the online diff tool to find typos in your code: hello.py Chapter 4 Read online: Chapter 4 - Guess the Number Download source: guess.py Use the online diff tool to find typos in your code: guess.py Chapter 5 Read online: Chapter 5 - Jokes Download source: jokes.py Use the online diff tool to find typos in your code: jokes.py Chapter 6 Read online: Chapter 6 - Dragon Realm Download source: dragon.py Use the online diff tool to find typos in your code: dragon.py Chapter 7 Read online: Chapter 7 - Using the Debugger Chapter 8 Read online: Chapter 8 - Flow Charts Chapter 9 Read online: Chapter 9 - Hangman Download source: hangman.py Use the online diff tool to find typos in your code: hangman.py Chapter 10 Read online: Chapter 10 - Tic Tac Toe Download source: tictactoe.py Chapter 11 Download source: bagels.py.

ULTIMATE GUITAR TABS ARCHIVE | 300,000+ Guitar Tabs, Bass Tabs, Chords and Guitar Pro Tabs! Smoking. Highlights Overview: Nearly 21% of adults in the United States smoke, according to a 2009 report by the U.S. Centers for Disease Control and Prevention (CDC).According to the American Cancer Society, the earlier you start smoking, the more likely you are to develop long-term nicotine addiction.

New Research A new study published in September 2009 found that breast cancer survivors who smoke increase their risk of a second breast cancer by as much as 120%.A 2009 analysis of 11 past studies indicates that using smokeless tobacco increases the risk of fatal heart attacks and strokes.Research published in February 2008 found that smokers were more at risk of developing aggressive colon polyps, which are considered precursors to colon cancer.Recent studies indicate that smoking is linked to adolescent suicidality. Other Health Effects of Smoking: Introduction Nearly 21% of adults in the United States smoke, according to a 2009 report by the U.S. Smoking in Childhood and Adolescence Geography. Science reference docs *INTECH*

Five Books That Changed My Life. I was incredibly lucky that my Mom owned a beautiful second-hand book store throughout my adolescence, because I constantly got to reap the reward of having amazing literature at my finger tips. Whatever I wanted to read, I was lucky enough to get to read. And as a result of the store taking second-hand books, can you even grasp how many amazing books must I got to read, that I never would have known about otherwise? Every few days, I was switching out. I never kept a book, so she never lost a cent, but I was always reading, always taking in knowledge. The Prophet by Kahlil Gibran The Prophet is a book you do not keep. The book is too powerful to cherish it secretly. The leather-bound, hardcover edition is quite breathtaking in itself, even before you open it.

I shalln’t tell you anything about this book, lest I ruin it. Survivor by Chuck Palahniuk When people ask me, this tends to be the book I most recommend most. It was this book that reignited my love of writing. Honestly, I know. In Bb 2.0 - a collaborative music/spoken word project. Out of this world, quite literally: The beautiful and mysterious Fukang meteorite & Believe nothing. My Collection of Funny Emails. Send funny emails to your friends!

Reynolds Wrap has lock in taps to hold the roll in place The color on the bread tab indicates how fresh the bread is And those colors are in alphabetical order: b, g, r, w, y. You can divide and store ground meat in a zip loc bag. Just break off how much you need and keep the rest in the freezer for later. If you place a wooden spoon over a pot of boiling water, it won't boil over.

Marshmallows can cure a soar throat. Stuffing a dryer sheet in your back pocket will repel mosquitoes. You can freeze cupcake batter for later use. You can paint upholstery You can make your own laundry soap. . You can dye plastic buttons. You can run a paper bag through your printer. You can print directly onto fabric. A dry erase marker can be used on most desk tops.

You can mail anything that will take a stamp and weighs less than 13ounces without a box? If you break your blender jar you can replace it with a mason jar. Cereal canisters make the perfect trashcan for your car.