International Workshop on Multi-Well Deep Underground Laboratory in Eastern China

An international workshop on a Multi-Well Deep Underground Laboratory in Eastern China was convened in Changchun, China from 3-8 July 2016.

by Hailiang Dong and Craig Schiffries

An international workshop on a Multi-Well Deep Underground Laboratory (MW-DUL) in Eastern China was convened in Changchun, China from 3-8 July 2016. The MW-DUL is designed to utilize existing wells, including scientific drilling borehole SK-2, Lincan-1, Chinese Continental Scientific Drilling (CCSD), Hong-25, and some oil wells in the Songliao Basin to observe geophysical, chemical, and biological processes at great depth. The principal goal of the workshop is to develop a full drilling proposal to the International Continental Scientific Drilling Program (ICDP).

Approximately 70 engineers, geologists, and biologists from the United States, Germany, Australia, South Korea, Japan, Austria, and China participated in the workshop. The ICDP and Deep Carbon Observatory (DCO) were sponsors of the workshop. DCO colleagues on the Scientific Committee included Tullis C. Onstott (Princeton University, USA), Hailiang Dong (Miami University, USA), and Craig Schiffries (Geophysical Laboratory, Carnegie Institution for Science, USA).

Over the course of the first two days, attendees exchanged engineering experience in building the deep underground laboratory and shared scientific advancements in deep underground science, including geothermal resource and technology, the deep biosphere, CO2 sequestration, carbon cycling, and geological hazards. On the third day, breakout sessions in the morning focused on specific themes including deep underground fluids and biology, geological hazards, deep energy, strain and seismic observation network, and well logging. In the afternoon, all the breakout sessions reported to the entire meeting.

Field trip to the crater lake of Mt. Changbai VolcanoAfter the workshop, the organizers led two field trips. One group of participants visited the well site SK-2 and the Wudalianchi volcano cluster. SK-2 is an ICDP-funded deep drilling project and is currently drilling to ~5200 m recovering the Cretaceous and part of the Jurassic rock strata (target depth ~ 6400 m). The Wudalianchi volcano cluster represents the youngest volcanoes in China, which erupted from 1719 to 1721. Another group of participants observed core from well site Lincan1 and visited Mt. Changbai Volcano. Lincan 1 is located in the Changbai depression (well depth 4500 m) and is a proposed site for monitoring volcanic and seismic activities in the area. The Mt. Changbai Volcano is one of the largest and most dangerous volcanoes on the globe.

The workshop was organized by Jilin University of China, Chinese Academy of Geological Sciences, China University of Geosciences at Beijing, and Sino-Probe.

Workshop Program

Crater Lake of Mt. Changbai Volcano

The Crater Lake of Mt. Changbai Volcano

Photos: (Above, left to right) Workshop participants included Craig Schiffries (Carnegie Institution for Science, USA); Christian Koeberl (Natural History Museum of Vienna, Austria); Youn Soo Lee (Korea Institute of Geoscience and Mineral Resources, South Korea); and Pujun Wang (Jilin University, China). (Inset) The workshop offered a field trip to Mt. Changbai volcano. (Bottom) The crater lake and Mt. Changbai volcano straddle the border between China and North Korea. All photos by Craig Schiffries.

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