About this Dataset

EGS Collab Experiment 2: Preliminary Test Wells Locations And Orientations

The EGS Collab project is evaluating a site for Experiment 2 (hydraulic fracturing/shearing) at a depth of 1.25 km in the Sanford Underground Research Facility (SURF) on the 4100 Level. Two early test holes were drilled in an alcove (formerly known as Battery Charging Station) near Yates Shaft. One of the test hole is about 50 m where as the other hole is about 10 m. This submission package includes well head locations, total lengths of boreholes, their orientations (gyro data). The reported boreholes orientation data were primarily obtained with REFLEX GYRO (TM) survey right after the completion of each hole. Well head locations were ascertained by Laser/LiDAR survey of the drift around the Testbed 2.

Note: The coordinate system used is local Homestake Mine Coordinate (HMC) system from an old gold mine that was in operation for over 100 years.
Organization: Department of Energy
Last updated: 2025-01-11T22:46:35.796623
Tags: borehole, collar-location, egs, egs-collab, energy, experiment-2, geothermal, gyro, gyro-data, homestake-mine, hydraulic-fracturing, hydraulic-shearing, leapfrog, lidar, remote-sensing, sanford-underground-research-facility, sigma-v, surf, test-wells, testbed-2, well-data, well-location, well-locations, well-orientation, wells

Tables

Collar Locations

@usgov.doe_gov_egs_collab_experiment_2_preliminary_test_wells_ef22ab26.collar_locations

4.9 kB
2 rows
6 columns

CREATE TABLE collar_locations (
  "well_id" VARCHAR,
  "east_x" DOUBLE  -- East (X),
  "nort_y" DOUBLE  -- Nort (Y),
  "elevation_z" DOUBLE  -- Elevation (Z),
  "maxdepth_ft" BIGINT  -- MaxDepth (ft),
  "type" VARCHAR
);

Gyro Data Hole Orientations

@usgov.doe_gov_egs_collab_experiment_2_preliminary_test_wells_ef22ab26.gyro_data_hole_orientations

4.8 kB
39 rows
5 columns

CREATE TABLE gyro_data_hole_orientations (
  "well_id" VARCHAR,
  "depth_ft" BIGINT  -- Depth (ft),
  "dip" DOUBLE,
  "azimuth" DOUBLE,
  "type" VARCHAR
);