The Next Stage of Shale Environmental Developments Dr. William W. Fleckenstein, P.E. (CA 1666) The Oil & Gas Conference 21 August 18th, 2016 PETROLEUM ENGINEERING
The Burning Questions Before Us Subsurface aquifers Greener chemicals Emissions Induced seismicity Land usage PETROLEUM ENGINEERING
4 Big Data Aquifer Study The Wattenberg Field near Denver, CO. Data from 17,948 oil wells (1970 2013). Wells were classified by construction types. Possible and catastrophic barrier failures were identified SPE-175401,…
5 Well Design Risks SPE-175401, SPE-181696 PETROLEUM ENGINEERING
6 Well Designs in Use SPE-175401, SPE-181696 PETROLEUM ENGINEERING
7 Well Barrier Possible Failures SPE-175401, SPE-181696 PETROLEUM ENGINEERING
Greener Chemicals Reveal and replace bad chemicals BTEX chemicals Chemical toxicity scoring systems Water-free fracturing fluids Hydrocarbon Non-hydrocarbon PETROLEUM ENGINEERING
Emissions Producing wells Production facilities Compressors Vehicles Rigs Alternative energy solutions Monitoring Karion, Sweeney, Conley, Greener Completions Newberger, Wolter PETROLEUM ENGINEERING
Induced Seismicity Characterization of faults Real time detection Operational protocols Risk analysis PETROLEUM ENGINEERING
Land Usage Ultra Extended Reach Downhole tractors Multi-laterals Pad development MOU development PETROLEUM ENGINEERING
CSM Technologies (Patented or Patent Pending) 1. Frac sleeve single sized ball 2. Downhole casing rotation 3. Annular cemented casing seal test In place of CBL More efficient fracs Dr. Jennifer Miskimins PETROLEUM ENGINEERING
Whats on the Frontier for Hydraulic Fracturing Dr. Jennifer L. Miskimins, P.E. Petroleum Engineering Department jmiskimimines.edu 303-384-2607 PETROLEUM ENGINEERING
The positives of downturns Necessitythe mother of invention. First attributed to Plato A long habit of not thinking a thing wrong gives it a superficial appearance of being right. Thomas Paine Previous downturns have led to…
Ongoing investigations, potential projects, issues to address Treatment optimization Fiber optics Better reservoir characterization Tracing techniques Reduction in use of fluids Pressure management/artificial lift improvements…
Treatment Optimization Issues with current completion efficiencies Communication between stages (inside/outside casing) Stages can remain untreated Some reports indicate 50% of wellbore producing at any given point in time (its a…
Fiber Optics DTS, DAS, DSS, DCS, DPS Temperature, acoustic, strain, chemical, pressure When integrated with other data points, can provide information on inefficiencies and ways to improve them From SPE 179149 (2016) PETROLEUM…
Better Reservoir Characterization Drive 2 miles in the mountains do the rocks change Engineered completions need to have the right data to be engineered correctly Improved geomechanics/characterization along the horizontal; faster…
Tracing Techniques Looking for improved understanding of what stages/fracs are producing or where to place wellbores/stages in the first place DNA sequencing vertically and horizontally Using flowback tracers to characterize…
Reduction of Fluid (Water) Requirements Some areas report bigger = better treatments, however, water supply/disposal is still an issue Replacement of water CO2, N2, liquid components of such Delivery methods an issue Focus has…
Pressure Management/ Artificial Lift Improvements Optimized drawdown = optimized treatment AL needed earlier in life cycle than conventional reservoirs Needs change rapidly Liquid loading issues; slug flow concerns PETROLEUM…
Refracturing Mr. Mike Vincent PETROLEUM ENGINEERING
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