well stimulation in california: update on … • what is well stimulation – focus on hydraulic...
TRANSCRIPT
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Well Stimulation in California: Update on Implementation of
Senate Bill 4 (Pavley)
Department of Conservation
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Overview
• What is Well Stimulation– Focus on Hydraulic Fracturing
• California and Other States’/Regions’ Experience
• Senate Bill 4 (Pavley)
Department of Conservation
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Oil and Gas Production Fundamentals
Department of Conservation
Note:• Geology
creates formations/ zones
• Well construction
Source: CA Department of Conservation
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What is Hydraulic Fracturing ?
Department of Conservation
•Increase permeability of oil-/gas-bearing formations
•Use of water, proppant, and chemicals to open fissures to allow oil/gas to flow to well
•Recent development? Combination of multi-stage HF in long, horizontal formation
• “Tight” shales or other types of formations require HF
Source: http://today.uconn.edu/blog/2011/12/fracking-%E2%80%93-good-news-or-bad-for-america%E2%80%99s-energy-needs/
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Land Use Impacts
North Dakota -- Before and AfterSource: www.hittinghome.org
Department of Conservation
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Land Use ImpactsExisting California
Oilfield Operations, Lost
Hills Field
Source: www.aeraenergy.com
Department of Conservation
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Department of Conservation
Source: http://energyinnovation.org
The Monterey Shale?
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Department of Conservation
Source: http://www.indybay.org
The Monterey Shale?
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Department of Conservation
Source: http://info.drillinginfo.com
The Monterey Shale?
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Geology of Oil and Gas Deposits
Department of ConservationSource: CA Dept of ConservationSource: CA Dept of Conservation
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Water Use in Hydraulic Fracturing• Nat’l water use for HF in 2014• CA avg. water use per HF ≈ 160,000 gallons• Total CA water use all HF in 2013 ≈ 300 acre feet
Department of Conservation
Source: “Hydraulic Fracturing & Water Stress: Water Demand by the Numbers”www.ceres.org, Boston , MA, Feb. 2014
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Hydraulic Fracturing in CA – 2013 to date
Department of Conservation
Source: conservation.ca.gov
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Historic Regulation
Department of Conservation
• Well Construction Standards• Focus on competent well bores• Ensure “zonal isolation”
• Facilities regulation• Covers pipelines, collection/separation vessels / tanks• Includes Spill Prevention and Contingency Planning
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Senate Bill 4Permanent Regulations
Department of Conservation
• Will require:• Permit from DOGGR• Neighbor notification• Pre-WST evaluation of formation & well• Monitoring during and after WST• Water quality monitoring plans and water management plans• Public disclosure of job and chemicals used
• Process for adoption
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Senate Bill 4Interim Regulations
Department of Conservation
•Now require:• Neighbor notification• Pre-WST pressure testing of well and surface equipment• Water quality monitoring plans• Disclosure of HF fluid content• Public disclosure
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Senate Bill 4“Well Stimulation” EIR and Independent
Scientific Study
Department of Conservation
•EIR• WST as a “project”• Process for EIR
•Independent Study• SB 4 direction and scope of study• Expected completion
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Conclusion
California Natural Resources Agency Department of Conservation
Jason Marshall, Chief Deputy Director916-322-1080