Well 16A(78)-32

caption

Frontier Observatory for Research in Geothermal Energy

Well 16A(78)-32 Summary and Data

Well 16A(78)-32 with Deviation Trajectory

(Coordinates: UTM Zone 12 N)

Well 16A(78)-32 was the first deep highly deviated well drilled as part of the Utah FORGE project. This well was a major step-out in geothermal drilling and completion strategies. It is located on Utah School and Institutional Trust Lands (SITLA) property. The well was spud on October 30, 2020 and it was drilled to a total measured depth of 10,987 ft (true vertical depth = 8,559 ft). The well head is located at 38.504013° north latitude and -112.896407° west longitude (334639.66 E, 4263442.78 N, UTM zone 12 N, NAD83) and it sits at an elevation of 5413.46752 ft with a rotary table elevation of 30 ft. The deviation kicked off at 5,900 ft measured depth and ended at 7,268 ft measured depth. The build was approximately 5 degrees per 100 ft. at an azimuth of 105 degrees. The rig was released on January 12, 2021.

The upper part of the well was drilled vertically through approximately 4,700 feet of sediments before penetrating into high strength, crystalline granitic rock. Preliminary measurements indicated temperatures at the "toe" of the well exceeded 442 degrees F (228 degrees C). Approximately 74 ft of granitic crystalline core, that will form the FORGE reservoir, was also recovered.

This well was completed in about one-half the time initially planned. The drilling plan originally estimated 136 days to complete the well, but the rig was released after 74 days!

This project led to the production of a significant amount of data. These data can be downloaded below:

1. Well Planning - Planned Trajectory: This is an Excel spreadsheet containing the Utah FORGE deep well 16A(78)-32 planned trajectory including UTM coordinates, elevations, and depths from the well head to the toe.
2. Drilling Data: This includes Daily Drilling Reports; detailed well data recorded at 10 second intervals; detailed well data recorded at 1 second intervals; the final mud log, well deviation surveys; the well location survey in Latitude and Longitude; the summary of daily operations; and rig photos.
3. Summary of Drilling Activities: This is the end of well report.
4. Drilling Logs: These include the concreate bond log; the final mud log; Sanvean logs which contains information, collected at the bit while drilling, such as rate of penetration (ROP), top drive torque, and bit box temperature. The data was recorded at the bit box and top sub of the motor. RPM was measured by onboard gyro recording continuously in each sensor, shock levels were also recorded on X, Y and Z axis; Schlumberger logs including (1) through bit FMI, (2) through bit sonic, (3) time lapse casing integrity, (4) CBL and gamma, (5) mud temperature and gamma, (6) array induction and gamma, (7) array induction, spectral density, dual spaced neutron/gamma ray, (8) spectral GR and temperature, (9) HID, (10) temperature, (11) ultrasonic imager/casing integrity/gamma ray-CCL, and (12) ultrasonic borehole imager, and (13) a processed Techlog XML file of field speed-corrected UBI; (14) Schlumberger processed shear anisotropy log; and (15) Schlumberger Thrubit Dipole Anisotropy log analysis results between 6000' and 10,942' in depth.
5. Core Photos: This includes 30 core images.
6. X-ray Diffraction Data: This contains x-ray diffraction data taken from 3,600 to 10,987 feet deep in the well. 78 rock samples were taken and then samples were taken in a range of ten feet at 100 foot increments. Mineral abundances are given in weight percent of the sample, with results rounded to the nearest whole number. Fields marked with tr (trace) indicate that mineral is present, but that its abundance calculated from the Rietveld refinement was less than one weight percent; that it was observed in the clay-sized fraction, but not the bulk; and/or that it was observed in low abundance during petrographic analyses. The samples were taken between 10/29/2020 and 12/24/2020 during drilling.
7. Simplified Discrete Fracture Network Data: The FORGE team is making these fracture models available to researchers wanting a set of natural fractures in the FORGE reservoir for use in their own modeling work. They have been used to predict stimulation distances during hydraulic stimulation at the open toe section of well 16A(78)-32. This is a simplified DFN (discrete fracture network) dataset, that was generated using FracMan, for Utah FORGE well 16A(78)-32.
8. Stimulation Data: This is a set of data related to the stimulation program at Utah FORGE well 16A(78)-32 during April, 2022. This includes daily reports, 1 second Pason data, tracer data, and shear stimulation data and information including a report of an evolving prognosis for the stimulation operations.
9. Stimulation Seismic Events Data: This is a dataset containing seismic events related to the three stages of well 16A(78)-32 stimulation in April, 2022.
10. Tracer Test Results during Stimulation: This is a dataset containing tracer data related to the three stages of well 16A(78)-32 stimulation in April, 2022.
11. Well 16A(78)-32 2022 Stimulation Silixa Microseismic Report: his is the Utah FORGE well 16A(78)-32 stimulation microseismic detection and location report from Silixa LLC. The stimulation was accomplished during April, 2022.
12. Well 16A(78)-32 and 58-32 Granite Core Thermal Properties Testing (May. 2021): This is a report from Metarock Laboratories on the thermal properties of Utah FORGE wells 16A(78)-32 & 58-32 granite. The report includes pictures of core samples, core details for the samples (where the sample was taken and the size of the sample), sample thermal expansion test results, radial velocity measurements, and hydrostatic test results.
13. Wellhead Survey for Well 16A(78)-32 This is a .pdf file containing the final survey for the wellhead of well 16A(78)-32. It contains the latitude and longitude and the wellhead elevation. The survey was done by WOOLSEY LAND SURVEYING, P.C. on March 23rd, 2023.
14. Well 16A(78)-32 Core Analysis Data This dataset consists of bulk XRD results, petrography, clay sized XRD results, SEM-EDS results, whole section PPL and XPL pictures, whole section SEM-BSE photomosaics, and an overview report of the core analysis.
15. Well 16A(78)-32 Revised FMI LOG This data consists of an Excel spreadsheet detailing the fracture picks from a reinterpretation of the FMI log. Data includes: measured depth, true vertical depth, azimuth, dip direction, dip and fracture type.
16. Utah FORGE: Well 16A(78)-32 Perforation Images This is a set of downhole images taken during perforations of well 16A(78)-32 by EV the downhole visual analytics company. This includes a Excel spreadsheet with information about the perforation sequence.
17. Well 16A(78)-32 Core-Flooding Experiment Results This dataset contains core-flood experimental results from the Utah FORGE project, generated through laboratory tests at Lawrence Livermore National Laboratory. The experiments were conducted at temperatures of 100C and 200C using core samples from the 16A(78)-32 well. The primary objectives of these tests were to determine the change in calculated hydraulic fracture and permeability over time, under constant confining pressure, in predominantly constant flowrate conditions, while monitoring effluent chemistry as a function of time. The dataset includes measurements related to elapsed time, sample pH, elemental concentrations, and pressure conditions at different core depths. Additional data captures inlet and outlet pressures, pump flowrate, brine temperature, reactor pressure, and calculated hydraulic parameters.

Overview Geology Water Chemistry/Ground Water Geophysics Earth/Fracture Modelling

Seismicity GIS Data/Maps R&D Projects Wells 16A&16B Stimulation Reports

Well 58-32 Well 78-32 Well 78B-32 Well 68-32 Well 56-32 Well 16A(78)-32 Well 16B(78)-32 Wells General

Go back to the UtahFORGE home page.