[PPT] - SCIENTIFIC OBSERVATION HOLE (SOH) PROGRAM e Hawaii Natural Energy PowerPoint Presentation

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SCIENTIFIC OBSERVATION HOLE (SOH) PROGRAM

Hawaii Natural Energy Institute University of Hawaii December 1989

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SLIDE 2

CHRONOLOGY OF GEOTHERMAL EVENTS

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1960's 1973 1973-1975 1975-1976 1976-1977 1978-1980 1980-present 1981 1982-present 1988-present Shallow exploratory wells drilled Hawaii geothermal project awarded Geothermal feasibility and appraisal Drilling program Well test analysis and reservoir engineering HGP-A power plant design and construction Well re-work, new casing cemented and extended (1979) Verifying well test analysis (1980) Private development

Drilling (Thermal Power & Barnwell)
Permitting etc. (True/Mid-Pacific Permitting/Litigation)

HGP-A electrical power production initiation Power plant operation and maintenance Scientific Observation Hole (SOH) program funded

and permitted

..

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Renewable Resources Potential

Hawaii's indigenous, renewable natural resources have the potential to make the State energy self- sufficient Hawaii's geological age and volcanic activity make geothermal resource a high potential option Geothermal energy offers relatively non-polluting, reliable, base load power at competitive cost

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Supply and Demand

Preliminary estimates ofpotential geothermal resources in the Puna region are on the order of500 megawatts for 100 years

Hawaii Electric Light Company (Big Island) demand projections call

for additional load capacity by early 1990's

Biomass (bagasse) incineration from the sugar mills now provides

roughly 40 percent of the island's electrical energy

Hawaiian Electric Company (Oahu) demand projections call for

additional load capacity and equipment retirement by early to mid 1990's. Geothermal power transmission via an undersea cable system could supply half of HECO's requirements

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Scientific Observation Hole Program

Regional assessment of geothermal resource in Kilauea middle and lower East Rift Zone (Hawaii) and Haleakala Southwest Rift Zone Non-production coreholes for scientific evaluation, observation, and monitoring Information to be gained for SOHs:

subsurface geological conditions
groundwater level, composition, and quality
subsurface temperature and pressure
drilling conditions
assessment of possible mineral & geothermal resources
eruptive history of the island to the depth drilled

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DBED

SOH

Organization Chart

H. Olson

Advisory Board

f---

HNEI Maurice Kaya, DBED Principal Investigator Bill Bonnet, HECO

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Fiscal Manabu Tagomori, DLNR RCUH Bruce Anderson, DOH

A. Seki

William Moore, COH HNEI Patrick Takahashi, HNEI Program Manager

G. Tsukada

HNEI Project Secretary Co-sponsors Regulatory BPA County of Hawaii EPRI Planning Commission HECO Planning Department PGV DLNR TRUE/Mid-Pacific

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J.Deymonaz

D. Thomas

Consultant HIG Drilling Supervisor Geochemist

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Researchers

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Cable Rig Core Rig Consultants Surveyors Technical Support

COnsultant;,

Fred Page Tonto

M. Metz
J. Murray
R. Kochy
R. Wilkins

GeothermEx, Inc.

W. Char
G. Newcomer
J. Woodruff
H. Hammatt
N. Santos
C. Higgins
R. Darby
W. Burkard
J. Mink
W. Bonk

GeothermEx, Inc.

SLIDE 7

SOH Funding Sources {thousands).

SOHs Production Holes

Reservoir Engineering

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DBED

$ 250

State

3,000

Private Developer

$4,000

EPRI

$ 400

HEeO

100

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BPA 148

Subtotal

$3,250 $4,000 $648

Total

$7,898

Plus $2.6 million allocated by State in 1989 Federal cost-sharing-pending

SLIDE 8

Location and Description of SOH Sites

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SOH 1 SOH2 SOH 3

Located near HGP-A , elev. 620 ft. Fallow agriculture land Ormat leasehold Kapoho Land & Development Corp., landowner Located in lower Kilauea east rift zone, near old airstrip, elev. 270 ft. Fallow agriculture land

Onnat leasehold

Kapoho Land & Development Corp., landowner Located in middle Kilauea east rift zone, elev. 1480 ft. Low elevation sub-tropical forest, zoned conservation TruelMid-Pacific leasehold Campbell Estate, landowner SOH 4

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Located in middle Kilauea east rift zone, elev. 1220 ft. Low elevation sub-tropical forest, zoned agriculture TruelMid-Pacific leasehold Campbell Estate, landowner SOH 5-6M Located in Haleakala southwest rift zone, elev. 700-900 ft. Grazing land for cattle, zoned agriculture TruelMid-Pacific leasehold State of Hawaii/Ulupalakua Ranch, landowner

SLIDE 9

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SLIDE 12

Permit Status Scientific Observation Hole Program

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Received Geothermal Resource permit from County of Hawaii to drill

3 holes (agricultural land) Received approval from Department of Land and Natural Resources to drill 1 hole (conservation land) Received drilling permit from Department of Land and Natural Resources to drill all proposed holes Pre-permitting stage for County of Maui

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In coordination with State, private developers, utilities, Electric Power

Research Institute, Bonne-ville Power Authority (potentially a $10 million drilling package cost-shared between State and private sector, with additional Federal funds possible)

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Drilling Contracts

Fred Page Drilling International

Local driller, Kailua-Kana, Hawaii

Tonto Drilling Services, Inc.

Salt Lake City, Utah
Drilled numerous coreholes in high

temperature environment

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Drilling Schedule

Cable Rig (Fred Page Drilling) Core Rig (Tonto Drilling U-5000) Core Rig (Tonto Drilling U-1500) SOH drilling sequence

0-100'

100 - 2900'+ +2900 - 4000/6500'

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SOH4

SOH 1

SOH3 SOH2

Tentative Tentative Tentative

SLIDE 15

Drilling/Casing Plan

400 - 1,000 ft. Phase 1: Drill 19" hole from surface

100 ft.

Run 13.375" casing Phase 2: Drill 12.25" hole to 400-1,000 ft Run 9.625" casing 100 ft. 200 ft. min. 1,000 - 2,000 ft. . 1,800 - 2,900 ft. Phase 3: Drill 8.5" hole to 1,000 - 2,000 ft. Run 6.625" casing Phase 3-A: Drill 5.35" (CHD-134) hole to if required 1,800 - 2,900 ft. Phase 4: Drill 3.85" hole (HQ) to 4,000 - 6,500 ft. Complete hole 2.75" tubing from surface toTD.

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4,000 - 6,500 ft.

SLIDE 16

12/13 1/10 2/7 3/7 4/4 5/2 5/30 6/27 7/25 8/22 9/19 10/17 11/14 12/12 1/9 2/6 3/6 4/3

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SCIENTIFIC OBSERVATION HOLE (SOH) PROGRAM

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Tentative Drill Schedule 12/14/89

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Basis for Community Qlmosition

Not in my backyard (NIMBY)
Native Hawaiian Rights

Noise and Order Geothermal & industrial development HGP-A operational history Groundwater contamination

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Overland & Undersea Cable Transmission of Electricity to Oahu

Agricultural crop detriment

Tropical Rain Forest Destruction

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County of Hawaii Geothermal Resource Permit Conditions

Approximately 1/4 acre drill sites Flora/fauna/archaeological surveys Noise/air quality monitoring plans Emergency plans approved by civil defense Use of best available control technology No open venting or flow testing Ground noise level: 55 dba day / 45 dba night DOH approval of disposal of sump ponds Revegetate sites Large vehicle delivery between 7 a.m. - 7 p.m. only Check SOH within 48 hrs of earthquake registering 6 or greater

n Richter scale and/or within 48 hrs after eruption within

10 km of SOH SOH 4 first drill site -- status report to Planning Commission ... depth < 200 feet Monthly and quarterly reports

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DLNR CONDITIONS

Management plan Air quality monitoring plan

Meteorological monitoring plan Noise monitoring plan 55 dba day limit 45 dba night limit Archaeological plan Flora/fauna surveys Drilling report Emergency plan

SLIDE 20

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