June 2015 // Volume 53 // Number 3 // Tools of the Trade // 3TOT3
The Oil and Gas Boom: Basic Information About Oil and Gas Activities for Extension Professionals
This article provides basic information for Extension professionals about oil and gas exploration and extraction. Information about hydraulic fracturing, land application of drilling mud, potential community outcomes, and Extension education opportunities are discussed. Family and Consumer Sciences (FCS), Community and Rural Development, and Agriculture Extension state and field staff can use this basic information to help plan successful programming. The issues associated with oil and gas activity have potential impacts on audiences of Extension education. A companion article frames these topics as a public issue for Extension.
Oil and gas activity, specifically hydraulic fracturing, has become a controversial economic issue that Extension educators may find themselves engaged in on the community level. In this case, the "tool of the trade" is research-based content that introduces Extension to some oil and gas technologies.
Oil and Gas
Hydraulic fracturing (also known in the press as hydrofracking, fracking, or fracing) is a technique used to release oil and gas from low-permeable geologic formations that would otherwise be difficult to extract (Cipolla, Lolon, Mayerhofer, & Warpinski, 2009). Recent advances have made the release of locked oil and gas even more feasible.
The Process of Exploration, Extraction, and Distribution
Figure 1. provides a simplification of the process of releasing oil and gas (Halliburton, 2014).
Simplified Process Diagram
Why Do We Care?
Oil and natural gas are important forms of energy (U.S. Energy Information Administration, n.d.). Oil and gas exploration and extraction is a controversial public issue that provides opportunities for Extension programming. As noted by Patton and Blaine (Patton & Blaine, 2001), public issues can be contentious and clouded by perception based on various degrees of accuracy.
Potential Costs/Benefits and Concerns
Issues and potential costs and benefits associated with oil and gas exploration and extraction can be grouped as follows: (1) Environment; (2) Water quality; (3) Water quantity, (4) Air quality; (5) Waste; (6) Liability, and (7) Community and landowner (Ferrell & Sanders, 2013a, 2013b).
Potential or claimed environmental impacts may include but are not limited to competition for clean water, waste disposal methods, correlation with earthquake activity, habitat destruction, and soil/air/water quality issues. Additionally, there is a more generic concern with the implied effect of prolonged dependence on fossil fuels on the environment.
(2) Water Quality
Surface water and groundwater may be contaminated during hydraulic fracturing. Surface water is at greater risk of contamination, as it is more likely that accidental discharge of fluids at the surface will contaminate surface water and soils (Adams, 2011). Groundwater contamination risk depends on two factors: (1) Depth of the groundwater and (2) Rock formation being explored.
(3) Water Quantity
Hydraulic fracturing requires large quantities of water. The US Department of Energy estimates that between 2 to 4 million gallons of water are needed to produce a single horizontal shale gas well (U.S. Department of Energy, 2009).
(4) Air Quality
Hydraulic fracturing may potentially impact air quality. Activity may release "methane, volatile organic compounds, and hazardous air pollutants" (U.S. Environmental Protection Agency, 2014).
Drilling produces a large volume of waste that must be properly stored and disposed. The two main waste products are fluids and drilling mud.
A typical well can release millions of gallons of flow-back water and produced water (U.S. Environmental Protection Agency, 2012). Disposal is critical; a common solution is deep-well injection (Clark & Veil, 2009). This has been correlated with earthquakes in some areas (Sumy, Cochran, Keranen, Wei, & Abers, 2014). Figure 2 provides information on fluids waste.
Fluid Waste Diagram
Drilling mud is used to protect the bit during operation and remove cuttings from well and is disposed of through burial and land application. Land application of drilling mud is highly regulated by state agencies (Penn & Warren, 2014; Penn & Zhang, 2013).
There are a number of questions under current state and federal environmental laws. Exemptions for practices related to hydraulic fracturing raise questions about compensation for damages caused by resource extraction activities and encourages the litigation process. Some have called for modification or removal of exemptions and exceptions under various federal statutes. How the legal system handles the impacts of petroleum resource extraction remain a significant part of hydraulic fracturing activity.
(7) Community and Landowner
Some factors may affect the protection and enhancement of community well-being. Communities and Extension must understand that there may be unplanned and unexpected activities associated with oil and gas and activity.
Some communities experience a boomtown effect when oil and gas activity is increased. Communities may be challenged by the boom, boom contraction, and post-boom phases associated with increased activity.
Oil and gas activity relies heavily on transportation for materials and personnel transport. For example, a typical shale well in the Marcellus play (New York, Pennsylvania, Ohio, Virginia. and West Virginia) requires 976 trucks to transport 4.88 million gallons of water to and from the well site (Chernova, 2011).
Employment and Workforce Availability
Oil and gas activity is labor and resource intense. Brown, Weber, and Wojan (2013) report that the employment of an average county with hydraulic fracturing activity increases by 3,200 jobs, 1,780 of which were mining related; the remaining jobs are created served the mining workers.
Locus of Costs and Revenues
Oil and gas activity affects infrastructure, utilities, schools, other goods, and services. Payment for these goods is a complex picture. Numerous sources provide local government revenues: sales, property, and income taxes and funds for education, healthcare, and roads. Some revenues provide specific goods and services, while others funds are unrestricted.
Other Sociological Impacts
Oil and gas activity has multi-faceted sociological impacts that may affect the quality of life for both long-term residents and newcomers. Some workers are removed from their cultural and social sanctions. Increased crime, accidents, substance abuse, and sexual abuse may be consequences of rapid population growth.
Accessing the minerals underground often involves negotiating compensation with the property rights owners. Property ownership and leasing contracts with energy companies are complex.
In conclusion, an understanding of the basic issues surrounding oil and gas activities will help Extension educators better serve their communities. Is your community affected by oil and gas exploration and extraction? More information will be provided in an upcoming companion article. That article frames the topic as a public issue for Extension.
Adams, M. B. (2011). Land application of hydrofracturing fluids damages a deciduous forest stand in West Virginia. Journal of Environmental Quality, 40(4), 1340-1344.
Brown, J. P., Weber, J. G., & Wojan, T. R. (2013). Emerging energy industries and rural growth. Economic Research Report Number 159. Washington, DC: Economic Research Service, USDA.
Chernova, Y. (2011, September 12). In fracking's wake: Some companies love that dirty water, because it means more money for cleaning it up. The Wall Street Journal. Retrieved from: http://online.wsj.com/news/articles/SB10001424053111903918104576502562678793674
Cipolla, C. L., Lolon, E., Mayerhofer, M. J., & Warpinski, N. R. (2009). Fracture design considerations in horizontal wells drilled in unconventional gas reservoirs. Paper presented at the SPE Hydraulic Fracturing Technology Conference.
Clark, C. E., & Veil, J. A. (2009). Produced water volumes and management practices in the United States. ANL/EVS/R-09/1: Argonne National Laboratory.
Ferrell, S. L., & Sanders, L. (2013a). Natural gas extraction: Issues and policy options. National Agricultural and Rural Development Center White Paper. Retrieved June, 2014, from: http://www.nardep.info/uploads/Natural_Gas_Extraction_White_Paper.pdf
Ferrell, S. L., & Sanders, L. (2013b). Technical suppliment: Natural gas extraction: Issues and policy options. National Agricultural and Rural Development Center White Paper. Retrieved from: http://www.nardep.info/uploads/Natural_Gas_Extraction_White_Paper.pdf
Halliburton. (2014). Hydraulic fracturing 101. Retrieved from: http://www.halliburton.com/public/projects/pubsdata/Hydraulic_Fracturing/fracturing_101.html
Patton, D. B., & Blaine, T. W. (2001). Public issues education: Exploring Extension's role. Journal of Extension [On-line], 39(4) Article 4FEA2. Available at: http://www.joe.org/joe/2001august/a2.php
Penn, C., & Warren, J. G. (2014). Application of water-base drilling mud to winter wheat: Impact of application timing on yield and soil properties. OSU Fact Sheet, CR-2272. Stillwater, OK: Oklahoma Cooperative Extension Service.
Penn, C., & Zhang, H. (2013). An introduction to the land application of drilling mud in Oklahoma. OSU Fact Sheet, WREC-102. Stillwater, OK: Oklahoma Cooperative Extension Service.
Sumy, D. F., Cochran, E. S., Keranen, K. M., Wei, M., & Abers, G. A. (2014). Observations of static Coulomb stress triggering of the November 2011 M5.7 Oklahoma earthquake sequence. Journal of Geophysical Research, 119(3), 1904-1923.
U.S. Department of Energy. (2009). Modern shale gas development in the United States: A primer. Retrieved from: http://energy.gov/sites/prod/files/2013/03/f0/ShaleGasPrimer_Online_4-2009.pdf
U.S. Energy Information Administration. (n.d.). Energy in brief. Retrieved from: http://www.eia.gov/energy_in_brief/article/major_energy_sources_and_users.cfm
U.S. Environmental Protection Agency. (2012). Study of the potential impacts of hydraulic fracturing on drinking water resources. Washington, DC: Author.
U.S. Environmental Protection Agency. (2014). Natural gas extraction: Hydraulic fracturing. Retrieved from: http://www2.epa.gov/hydraulicfracturing