Kyle E Murray

Kyle E Murray
University of Oklahoma | ou

PhD, MS, BA

About

63
Publications
16,433
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
986
Citations
Introduction
My current research projects and pursuits are related to sustainability of water and energy resources. Our global community will be profoundly altered by our ability or inability to adaptively manage our water and energy resources. I believe we must draw upon many academic disciplines to properly address these topics. If you have similar interests and motivations then I welcome your contact and collaboration.
Additional affiliations
November 2011 - present
University of Oklahoma
Position
  • Hydrogeologist
September 2004 - October 2011
University of Texas at San Antonio
Position
  • Professor (Assistant)
June 2003 - August 2004
Colorado School of Mines
Position
  • Research Associate
Education
September 1999 - May 2003
Colorado School of Mines
Field of study
  • Geological Engineering
September 1995 - August 1997
Wright State University
Field of study
  • Hydrogeology
September 1990 - May 1995
Shippensburg University
Field of study
  • Geography/Environmental Studies

Publications

Publications (63)
Article
Full-text available
With the U.S. unconventional oil revolution, adverse impacts from subsurface disposal of coproduced water, such as induced seismicity, have markedly increased, particularly in Oklahoma. Here, we adopt a new, more holistic analysis by linking produced water (PW) volumes, disposal, and seismicity in all major U.S. unconventional oil plays (Bakken, Ea...
Article
Full-text available
Many previous studies have suggested that wastewater disposal is the most probable factor affecting increased seismicity in Oklahoma since 2009. While this relationship is clear at the state scale, a systematic quantitative analysis of the spatiotemporal relationships between injection and seismicity is needed. We first apply multiscale analyses to...
Article
Full-text available
The state of Oklahoma has experienced an unprecedented increase in earthquake activity since 2009, likely driven by large-scale wastewater injection operations. Statewide injection rates peaked in early 2015 and steadily decreased thereafter, approximately coinciding with collapsing oil prices and regulatory action. If seismic activity is primarily...
Article
Full-text available
The Arbuckle Group (Arbuckle) is a basal sedimentary unit that is the primary target for saltwater disposal in Oklahoma. Thus, the reservoir characteristics of the Arbuckle, including how the poroelastic properties change laterally and over time are of significant interest. We report observations of fluid level changes in two monitoring wells in re...
Conference Paper
Recent seismicity rates in Oklahoma far exceed historic or background seismicity, so research examines a multitude of factors related to induced seismicity. Geologic investigations aim to understand the basal sedimentary unit, the Arbuckle Group (Arbuckle), and the connections to basement rock where earthquakes are potentially triggered. Where the...
Technical Report
Full-text available
This report is an update for an ongoing research effort to compile Oklahoma’s Class II underground injection control (UIC) well data by geologic zone of completion on annual-, state-, and county- scales. Because most previous studies indicate that saltwater disposal (SWD) wells are of greater concern than enhanced oil recovery injection (EORI) well...
Article
Oil shale deposits of the Green River Formation (GRF) in Northwestern Colorado, Southwestern Wyoming, and Northeastern Utah may become one of the first oil shale deposits to be developed in the U.S. because of their richness, accessibility, and extensive prior characterization. Oil shale is an organic-rich fine-grained sedimentary rock that contain...
Technical Report
Full-text available
The Arbuckle Group (i.e., Arbuckle) was formed during the late Cambrian and early Ordovician when the mid-continent was covered by a shallow sea. The Arbuckle underlies nearly the entire state of Oklahoma and is comprised of the Fort Sill Limestone, Royer Dolomite, Signal Mountain Formation, Butterly Dolomite, McKenzie Hill Formation, Cool Creek Fo...
Article
Microorganisms are ubiquitous in natural environments and in water supply infrastructure including groundwater wells. Sessile-state microorganisms may build up on well surfaces as biofilms and, if excessive, cause biofouling that reduces well productivity and water quality. Conditions can be improved using biocides and other traditional well rehabi...
Technical Report
Full-text available
Water and energy resources are fundamentally connected and have created what some refer to as the energy-water or water-energy nexus. A common goal of water and energy management is to maximize the supply of one while minimizing the use of the other. Water management in Oklahoma has become an important issue not only because of recurring droughts a...
Article
Full-text available
Water and other fluids have been injected into the subsurface for decades in enhanced oil recovery (EOR) operations and for saltwater disposal (SWD). In recent years, hydraulic fracturing and horizontal wells have allowed development of unconventional oil and gas res¬ervoirs or to redevelop conventional resources. Intense leasing, drilling, and pro...
Article
Full-text available
This study was conducted to assess the impact of varying nitrogen:phosphorous ratios of liquid culture media on biomass productivity in microalgal strains of biotechnological importance. Four strains of microalgae were grown in standing cultures at 28°C for up to 14 days with a light:dark photoperiod of 15 h:9 h. A commercially available freshwater...
Article
A common goal of water and energy management is to maximize the supply of one while minimizing the use of the other, so it is important to understand the relationship between water use and energy production. A larger proportion of horizontal wells and an increasing number of hydraulically fractured well bores are being completed in the United State...
Article
Full-text available
Due to increases in water demand, the City of Kenedy, Texas, USA must expand their small drinking water supply in the Gulf Coast aquifer system. Groundwater wells owned by the City of Kenedy, Karnes County, Texas were examined to estimate properties for the Jasper aquifer. Conditions of four wells were assessed, after which two wells were rehabilit...
Article
This study was designed to examine carbon utilization within scalable microalgae production systems. Neochloris oleoabundans was produced in replicated troughs containing BG11 nutrient formulation. Atmospheric CO(2) was supplemented with ∼5% CO(2) or with NaHCO(3), and the pH of troughs receiving NaHCO(3) was adjusted with HCl or H(3)PO(4). Peak bi...
Article
Full-text available
The purpose of this paper is to present biomass and nutrient uptake data from Neochloris oleoabundans production in an open trough system. The growth medium used was BG11, temperature ranged from 16.7 °C to 25.3 °C, and pH ranged from 5.52 to 9.94 because the customary pH increase during algal biomass production was moderated by incoming CO(2) gas...
Article
Full-text available
Organic chemicals have been detected at trace concentrations in the freshwater environment for decades. Though the term trace pollutant indicates low concentrations normally in the nanogram or microgram per liter range, many of these pollutants can exceed an acceptable daily intake (ADI) for humans. Trace pollutants referred to as emerging contamin...
Article
Full-text available
A numerical watershed model was used to evaluate the potential influence of various point and nonpoint sources including on-site wastewater systems (OWS) on stream nitrate concentration in Turkey Creek Watershed, Colorado. A watershed analysis risk management framework model was used for this study, and was calibrated to observed stream nitrate con...
Article
Full-text available
Nutrient loading to surface water systems has traditionally been associated with agricultural sources. Sources such as on-site wastewater systems (OWS) may be of concern especially in rural, nonagricultural watersheds. The impact of various point and nonpoint sources including OWS in Turkey Creek Watershed was evaluated using the Watershed Analysis...
Article
Full-text available
Soil moisture plays a vital role in a watershed's hydrologic response to a precipitation event. Soil moisture condition antecedent to an event in empirical runoff estimation models, such as the 5-day antecedent moisture model for natural resources conservation service (NRCS) curve number (CN) method, is generalised and spatially inexplicit. This st...
Article
Full-text available
Emerging contaminants (ECs) are chemicals that are currently unregulated due to limited understanding of health effects and limited data regarding occurrence. Wastewater treatment plants (WWTP) receive many ECs as components of influent waste and the removal of organic contaminants, such as ECs, occurs primarily by sorption to sludge. Therefore, it...
Technical Report
Full-text available
Waterways in the San Antonio area are surrounded by residential, commercial, or an otherwise urbanized landscape; so management practices along waterways must allow sufficient stormwater conveyance while maximizing ecological services. Ecological services include providing wildlife habitat, promoting diverse native plantlife with vegetative layers,...
Conference Paper
Full-text available
A biofilm is a colony of microorganisms attached to a moist surface, embedded in an extracellular polymeric substance. Biological fouling (Biofouling), considered and advanced stage of biofilm development, is the undesirable accumulation of organic matter and microorganisms on submerged surfaces. Biofouling is common in groundwater wells and leads...
Article
Emerging contaminants (ECs) are a major concern in the environment, particularly those found in waters. Wastewater treatment plants (WWTPs) play a key role in reducing the concentrations in the environment because compounds may be transformed under either aerobic or anaerobic conditions or may sorb to wastewater sludges and therefore be removed fro...
Article
Full-text available
This study used optical brighteners (OB) released from septic systems to show that groundwater flow direction is largely controlled by the structural framework in a faulted karst groundwater system. Effective protection of groundwater resources requires that groundwater systems are adequately characterized and source water protection areas (SWPA) a...
Article
Full-text available
Soil moisture condition plays a vital role in a watershed's hydrologic response to a precipitation event and is thus parameterized in most, if not all, rainfall-runoff models. Yet the soil moisture condition antecedent to an event has proven difficult to quantify both spatially and temporally. This study assesses the potential to parameterize a par...
Article
Full-text available
The continuous elevation of the water level in the Cañada de Las Norias pools provokes a significant flood hazard on one quarter of Las Norias and the greenhouses in the area. Because of the flood hazard the government created a drainage system that includes a pumping station with a capacity of 135 l/s and a conduction of 7,26 km for the drainage o...
Article
Endocrine disrupting compounds (EDCs) are compounds that interrupt hormonal functions in the body. The literature reports the presence of EDCs in all environmental matrices (air, water and soil) at concentrations of at least 1 nanogram/liter (ng/l), which may be high enough to induce adverse health effects. Therefore, reliable analytical methods fo...
Technical Report
Full-text available
This report describes a water audit of San Antonio Water System (SAWS) using International Water Association (IWA) standards that was prepared by the Center for Water Research (CWR) at the University of Texas at San Antonio (UTSA) and the Texas Engineering Experiment Station (TEES) at Texas A&M University (TAMU). IWA methodology was followed to pro...
Conference Paper
Water accountability standards are increasing for many water utilities as supplies are progressively strained. Water demand for San Antonio, Texas, the eighth largest city in the United States, is expected to double by 2050. At this time, San Antonio is solely dependent upon groundwater, the majority of which comes from a capped withdrawal of the E...
Article
Endocrine disrupting compounds (EDCs) have caught recent attention as one of the major concerns in the environment. They are known to interfere with the activity of growth-related hormones and usually, as a result, cause disruption in normal functioning of the body. The compounds currently classified as EDCs range from a variety of both natural and...
Article
The evolution of stable isotope composition of oxygen and hydrogen(delta18O and deltaD) in the Edwards-Trinity aquifer, in South Central Texas is modeled in both closed and open aquifer system to explain possible evaporation effects and mixing of various sources of water. Our modeling uses delta18O and deltaD data reported by United States Geologic...
Article
Pesticides have been detected at concentrations exceeding regulatory levels in groundwater samples from many parts of the world. In efforts to minimize the impact that pesticides have on groundwater resources in the United States, the U.S. Environmental Protection Agency (USEPA) proposed that every state develop a pesticide management plan. Develop...
Technical Report
Full-text available
This study evaluated the potential impact of four CBM exploratory wells on the water resources in the northern portion of Delta County, Colorado. The evaluation included compilation of the available geological, hydrological and hydrochemical data and examined the potential role of deep recharge from the top of the Mesa to the Rollins sandstone. The...
Article
A method to predict aquifer vulnerability to pesticide contamination at the subregional scale was developed. The assessment method was designed to incorporate relevant hydrologic and pesticide-transport information and to use generally available data. The method assumes steady-state advection of pesticides in the vadose zone, including sorption and...
Conference Paper
Full-text available
A detailed geologic framework of surficial and subsurface geology is necessary to understand the ground water hydrologic system in karst regions. In this study, the geologic framework of a karst region adjacent to and within the Buffalo National River, Arkansas was characterized in three-dimensions. Digital geologic map data, structure contours, wa...
Article
Groundwater contamination from non-point agricultural sources is of great concern to the quality of drinking water in the United States. The U.S. Environmental Protection Agency has required each state to produce a State Management Plan (SMP) to monitor and manage pesticide contamination. Thus, a vulnerability-assessment methodology has been create...

Network

Cited By

Projects

Project (1)
Project
Using data from pressure transducers instrumented in inactive SWD wells with open interval in the Arbuckle Group, we are computing material properties such as rock compressibility, permeability, storage coefficient, and hydraulic diffusivity from stress and associated responses.