The most well-known targets of hydraulic fracturing are tight formations, such as tight sands, coal beds, and shale formations. Maps from the U.S. Energy Information Administration give a general idea of where shale, tight sand, and other similar...
Fracking is an informal name for hydraulic fracturing, an oil and gas well development process that typically involves injecting water, sand, and chemicals under high pressure into a bedrock formation via the well. This process is intended to create new...
A public Web site known as FracFocus has been established by industry that lists fluids used in many, but not all, hydraulically fractured wells. Individual companies select the chemicals to be used from hundreds that are available and the fluids are...
The USGS performs research related to the formation, occurrence, and exploitation of unconventional oil and gas enabled by the application of hydraulic fracturing. Resource assessments estimate the quantity of oil and gas that is yet to be discovered but...
Hydraulic fracturing in vertical wells has been used for over half a century, particularly in tight gas sands, in order to stimulate production in wells that previously produced in subeconomic quantities. However, the current practice of horizontal...
Hydraulic fracturing is used in many established oil and gas producing regions of the country as well as some areas new to the petroleum industry. Maps of major shale gas, tight gas, and tight oil basins are available from the U.S. Energy Information...
The states regulate many aspects of oil and gas exploration and production. Federal land managers, such as the Bureau of Land Management (BLM), the U.S. Forest Service (USFS), and the U.S. Fish and Wildlife Service (USFWS) have some oil and gas oversight...
Prior to the recent widespread use of directional drilling, hydraulic fracturing, and other enabling technologies, petroleum geologists and engineers were aware that oil and gas resources were present in “tight” or impermeable formations such as shale....