Episode: 1994 Hydraulic Tests Soultz-sous-Forêts

Collection

During June–July 1994, GPK‑1 underwent a production test followed by an injection test. About 6 200 m³ of fluid were produced in June using EPS‑1 as the injection well, and 9 600 m³ of water were injected in July at varying flowrates to assess the injectivity of the stimulated fracture system.

Soultz-sous-Forêts

June 16, 1994 - July 13, 1996

Injection test / Production test

Last updated on June 22, 2026

Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Collection

The 1996 hydraulic programme at GPK‑2 included a production test, a major re‑stimulation injecting 28 000 m³ at rates up to 78 L/s, a stepped injectivity test, and two short circulation experiments between GPK‑2 and GPK‑1. Around 7 500 microseismic events were detected, with about 5 700 successfully located.

Soultz-sous-Forêts

Aug. 14, 1996 - Oct. 30, 1996

Production test / Hydraulic Stimulation / Stepped Injection Test

Last updated on June 22, 2026

Episode: 2000 Stimulation Soultz-sous-Forêts

Collection

The June–July 2000 hydraulic programme at GPK‑2 involved a six‑day deep stimulation over the 4431–5084 m openhole interval, injecting 27 800 m³ of water including an initial 700 m³ brine slug to promote downward fracture growth. After a one‑week pause, a post‑stimulation injection test was performed, followed by 11 days of continued seismic monitoring.

Soultz-sous-Forêts

June 30, 2000 - July 15, 2000

Hydraulic Stimulation

Last updated on June 22, 2026

Episode: 1988 Stimulation Soultz-sous-Forêts

Collection

The Soultz‑sous‑Forêts HDR site was selected in 1986, leading to the drilling of the 2000 m‑deep GPK‑1 well. A 1988 low‑rate injection test triggered microseismicity, with events migrating deeper than the injection zone.

Soultz-sous-Forêts

1987 - 1988

Injection test

Last updated on June 16, 2026

Episode: 1991 Stimulation Soultz-sous-Forêts

Collection

During the 1991 episode, two 50‑hour injection tests were performed in GPK‑1 at 7 and 15 L/s, generating significant induced seismicity. A network of CSM accelerometer probes and hydrophones in nearby wells detected over 400 events, about 60% of which were successfully located.

Soultz-sous-Forêts

1991

Hydraulic Stimulation

Last updated on June 16, 2026

Catalogue with hydraulic data from Drif et al.(2024)- Soultz-sous-Forêts 1995 Stimulation

Dataset in collection Episode: 1995 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Hourly catalogue of the 1995 Soultz injection, tracking injected flow/volume/energy and the seismic response (event depth, seismic moment, radiated and faulting energy) to quantify how hydraulic energy converts into seismic energy.

Soultz-sous-Forêts

1995

Hydraulic

Last updated on June 15, 2026

Microseismic catalogue with seismic moment and moment magnitude from Drif et al.(2024) - Soultz-sous-Forêts 1995 Stimulation

Dataset in collection Episode: 1995 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Microseismic catalogue of the 1995 Soultz‑sous‑Forêts stimulation, listing all events with location, CSMA moment magnitude, and recalculated seismic moment and moment magnitude. It is derived from the CSMA 1995 downhole network catalogue and reprocessed following Drif et al. (2024).

Soultz-sous-Forêts

June 14, 1995 - June 29, 1995

Seismology

Last updated on June 15, 2026

Flow logs - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Flow logs from GPK1 and GPK2 were recorded during the 1996 Soultz‑sous‑Forêts hydraulic programme, documenting depth‑dependent flow profiles (depth in m, flow in L/s) over multiple injection and circulation phases. Each file header contains the detailed acquisition parameters.

Soultz-sous-Forêts

Sept. 19, 1996 - Oct. 19, 1996

geophysics

Last updated on June 15, 2026

Hydraulic data - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Hydraulic data from GPK2, GPK1, and EPS1 were recorded during the 1996 Soultz‑sous‑Forêts hydraulic programme, covering production, stimulation, stepped‑injection, and two circulation tests. Five datasets document wellhead pressure, flowrate, temperature, and related hydraulic parameters, with full metadata provided in each file header.

Soultz-sous-Forêts

Aug. 14, 1996 - Oct. 30, 1996

Hydraulic

Last updated on June 15, 2026

Microseismic catalogue with moment magnitude of the downhole network from CSMA - Soultz-sous-Forêts 1996 Stimulation

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Microseismic catalogue of 3464 events recorded by the downhole network during the 1996 Soultz‑sous‑Forêts stimulation. The dataset covers only the stimulation phase and a few days after, with almost no events at low flow rates and a strong increase in seismicity during the 78 L/s injection stage.

Soultz-sous-Forêts

Sept. 22, 1996 - Sept. 28, 1996

Seismology

Last updated on June 15, 2026

Microseismic downhole network - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

In 1996, three CSMA 4‑component accelerometers (in wells 4550, 4601, 4616) and one hydrophone (in EPS1) were deployed for the Soultz microseismic network. Sensors were not grouted.

Soultz-sous-Forêts

1996

Seismology

Last updated on June 15, 2026

Temperature logs - Soultz-sous-Forêts 1996 Stimulation and Hydraulic Tests

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Temperature logs from GPK1 and GPK2 were recorded during the 1996 Soultz‑sous‑Forêts hydraulic programme, documenting depth‑dependent temperature profiles (depth in meters, temperature in °C). Measurements were acquired on multiple dates in September–October 1996, with full acquisition details provided in each file header.

Soultz-sous-Forêts

Sept. 9, 1996 - Oct. 19, 1996

geophysics

Last updated on June 15, 2026

Catalogue with hydraulic data from Drif et al.(2024)- Soultz-sous-Forêts 1996 Stimulation

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Hourly hydraulic–seismic catalogue for the 1996 Soultz stimulation, starting 18/09/1996 12:00. It reports flowrate, injected volume, hydraulic energy, and the corresponding seismic response (event depth, cumulative moment, radiated and faulting energies) to evaluate how injected hydraulic energy converts into seismic energy, following Drif et al. (2024).

Soultz-sous-Forêts

1996

Hydraulic

Last updated on June 15, 2026

Microseismic catalogue with seismic moment and moment magnitude from Drif et al.(2024) - Soultz-sous-Forêts 1996 Stimulation

Dataset in collection Episode: 1996 Stimulation and Hydraulic Tests Soultz-sous-Forêts

Microseismic catalogue of the 1996 Soultz‑sous‑Forêts stimulation, listing events with location, CSMA moment magnitude, and recalculated seismic moment and moment magnitude. The dataset is derived from the CSMA 1996 downhole catalogue and reprocessed following Drif et al. (2024).

Soultz-sous-Forêts

Sept. 22, 1996 - Sept. 28, 1996

Seismology

Last updated on June 15, 2026

Dataset related to the article "Direct modelling of the mechanical strain influence on CWI and implications for strain monitoring of reservoirs"

Dataset

Dataset containing the figure‑generation data from Azzola et al. (2017) on mechanical‑strain effects in coda‑wave interferometry (JGR). The work was funded by LABEX G‑EAU‑THERMIE‑PROFONDE, the French ANR, and the EU H2020 DESTRESS project, and is released under a CC BY 4.0 license

2017

Seismology / Model

Last updated on June 15, 2026