Summary of reservoir engineering data: Wairakei geothermal field, New Zealand

Technical Report · Mon Jan 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6356003· OSTI ID:6356003

Pritchett, J W; Rice, L F; Garg, S K

This is an abbreviated summary of the final project report on an extensive collection of fundamental field information concerning the history of the Wairakei geothermal field in New Zealand. The purpose of the effort was to accumulate any and all pertinent data so that various theoretical reservoir simulation studies may be carried out in the future in a meaningful way. Categories of data considered include electrical resistivity measurements, magnetic force surveys, surface heat flow data and a catalog of surface manifestations of geothermal activity, geological and stratigraphic information, residual gravity anomaly surveys, laboratory measurements of formation properties, seismic velocity data, measurements of fluid chemical composition, monthly well-by-well mass and heat production histories for 1953 through 1976, reservoir pressure and temperature data, and measurements of subsidence and horizontal ground deformation. The information is presented in three forms. A review of all the data is contained in the final project report. The present report summarizes that information. In addition, a magnetic tape suitable for use on a computer has been prepared. The magnetic tape contains a bank of information for each well in the field, on a well-by-well basis. For each well, the tape contains the completion date, the surface altitude, the bottomhole depth, the geographic location, the slotted and perforated interval locations, the bottomhole diameter, locations of known casing breaks, the geologic drilling log, fault intersections, shut-in pressure measurements, and month-by-month production totals of both mass and heat for each month from January 1953 through December 1976.

• Research Organization: Systems, Science and Software, La Jolla, CA (USA); California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6356003
• Report Number(s): LBL-8669
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150904* -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
DOCUMENT TYPES
ELECTRICAL SURVEYS
ENGINEERING
ENTHALPY
GEOLOGY
GEOPHYSICAL SURVEYS
GEOTHERMAL FIELDS
GEOTHERMAL WELLS
GROUND SUBSIDENCE
Geothermal Legacy
HEAT FLOW
MAGNETIC SURVEYS
PHYSICAL PROPERTIES
PRESSURE MEASUREMENT
RESERVOIR ENGINEERING
RESERVOIR PRESSURE
RESERVOIR TEMPERATURE
REVIEWS
STRATIGRAPHY
TEMPERATURE MEASUREMENT
THERMODYNAMIC PROPERTIES
WAIRAKEI GEOTHERMAL FIELD
WELLS