hydraulic fracturing test site (hfts) - uschinaogf.org 1600 gti en.pdf · government on a hydraulic...
TRANSCRIPT
Hydraulic Fracturing Test Site (HFTS)
> September 28, 2016 > OGIF 2016 – Washington, DC > Presented by: Eddie Johnston, Vice President – Research Operations
OGIF 2016 2
ESTABLISHED 1941
Company Overview
> Independent, not-for-profit established by the natural gas industry
> GTI tackles tough energy challenges turning raw technology into practical solutions
> Downhole to the burner tip including energy conversion technologies
OGIF 2016 3
> In an $21 million project sponsored by a public-private partnership, GTI is collaborating with hydraulic fracturing experts from industry, academia, and government on a Hydraulic Fracturing Test Site (HFTS).
Hydraulic Fracturing Test Site (HFTS) - Project Overview
Ground Truth: Through-Fracture Cores
OGIF 2016 4
> The primary goal of the HFTS is to minimize current and future environmental impacts by reducing number of wells drilled while maximizing resource recovery.
>Objectives ─ Assess and reduce air and water environmental
impacts
─ Optimize hydraulic fracture and well spacing
─ Improve fracture models
─ Conclusively determine maximum fracture height
Goals and Objectives
Aerial view of well sites in Texas
OGIF 2016 5
HFTS Team
Site Host
Sponsors
Research Team
OGIF 2016 6
> Data from 87 nearby wells made available to research team
> 11 new wells ─ 6 Upper Wolfcamp
─ 5 Middle Wolfcamp
> 2 Offset legacy wells ─ Testing re-fracturing
Test Site Location - Extensive Nearby Science Data
Test Site Area
Whole Core Production Log Microseismic Dipole Sonic Log Petro Logs 3-D seismic LPI Leasehold
Test Site Area
Laredo Acreage LPI leasehold
Reagan North corridor area
UWC Hz MWC Hz
OGIF 2016 7
> Water and air sampling before and during fracturing, during flowback and production
> Comprehensive geophysical open-hole well logs in horizontal laterals – image + quad combo
> Side wall cores – 60 rotary and 50 pressurized
> Diagnostic fracture injection tests – 14 vertical, 4 horizontal
> Cross-well seismic survey between 4 wells, before and after fracturing
> Production and pressure monitoring – during fracturing and ongoing
> Radioactive and chemical tracers
> Colored proppants
> Microseismic and tilt-meter monitoring
> Fiber optic coil tubing production logs
> Through fracture whole cores
> More…
One-of-a-Kind Data Set
OGIF 2016 8
> Completed Slant Core Well ─ Nearly 600 feet of whole core through two hydraulically
fractured reservoirs ─ Upper Wolfcamp ─ Middle Wolfcamp
> CT scanned all cores > Logged and cased well
─ Quad Combo, including spectral gamma and image log
> Mass Spectroscopy analysis in entire slant lateral > Core description completed > Installed 8 isolated bottom hole pressure gages to
monitor reservoir depletion through created fractures
Through-Fracture Core Recovery
Image Courtesy: Laredo Petroleum
OGIF 2016 9
Through Fracture Core Highlights
>Insights expected to increase resource recovery and spur new technology development
>Results challenge industry assumptions and understandings
Image Courtesy: Laredo Petroleum
OGIF 2016 10
> 5 groundwater wells within 2 miles of HFTS sampled for ground water quality before, during, and after hydraulic fracturing operations.
Groundwater monitoring
> RESULTS ─ No methane or BTEX
measured in groundwater
─ Conductivity and TDS increased during fracturing due to large volumes of water being withdrawn
─ Aquifer chemistry returned to normal within 6 weeks
> No evidence of subsurface migration of produced water or natural gas to aquifer
Water Well
OGIF 2016 11
> Air quality was measured before, during, and after hydraulic fracturing operations 1,000ft upwind and 1,000ft downwind from HFTS pad to assess impact on local air quality.
Air Quality
Wind Direction
Air Quality Sampling Locations
> RESULTS: ─ Air quality during hydraulic
fracturing, flowback, and production did not significantly differ from baseline measurements or from air quality in Midland TX.
─ VOCs of interest measured during flowback were considerably lower than NIOSH time weighted average exposure limits.
> No meaningful impact on local air quality
OGIF 2016 12
>Refinement of the Reservoir Model, implementation of optimized completions, and applied learnings from the GTI proprietary Hydraulic Fracturing Project, have resulted in a significant production uplift.
>We anticipate that as the project advances, additional learnings will further enable efficiency gains, leading to safe, environmentally responsible, efficient, and commercial production in the Permian Basin.
Impact: Prudent Resource Recovery
Source: Laredo Petroleum September 2016 Corporate Presentation
OGIF 2016 13
> Continue field data collection ─ Pressure Monitoring, Production Monitoring, Environmental Sampling
> Complete core description & develop methods for proppant detection in fracture surfaces and drilling sludge in core sleeves
> Transition from field data acquisition to analysis and integration of data
> Redefine the understanding of hydraulic fracturing via the research collaboration of world class subject matter experts
> Elevate the learnings of HFTS and extrapolate the environmental impacts of precision well spacing and increased hydraulic fracturing efficiency on ground water resources to West Texas basins
> Provide valuable scientific findings that inform the general public, policy makers, regulators, and operators to ensure prudent resource recovery as a key element of US energy security
Going Forward
OGIF 2016 14
Contact information: Eddie Johnston Vice President – Research Operations 847-768-0889 Office [email protected]