IDDP announces an ICDP supported workshop 3-5. September, 2012, in relation to a proposed drilling of a 5 km deep well, IDDP-2, into the Reykjanes geothermal system in SW-Iceland. Applications should be sent direct to Gudmundur O. Fridleifsson (email@example.com), with cc to W. A. Elders (Wilfred.firstname.lastname@example.org) and G. Bignal (email@example.com).
Drilling for New Energy: new article on IDDP published by Research Media: p65-67_Iceland_Deep_Drilling_Project.pdf and p65-67_Iceland_Deep_Drilling_Project_lowres.pdf. International Innovation is the leading global dissemination resource for the wider scientific, technology and research communities, dedicated to disseminating the latest science, research and technological innovations on a global level. More information and a complimentary subscription offer to the publication can be found at: www.researchmedia.eu
Flow tests of well IDDP-1 have continued this summer. After the flow tests in the summer of 2010 stopped, improvements were made to the wellhead and flowline to meet the demanding conditions. Below are a few video clips of the 4th flow test, August 9-10, 2011.
- Video clip: The test began by opening a 4” valve into a separate flow line. This lasted for about 10 minutes.
- Video clip: This video clip shows the flow condition ca. 3 minutes after the 12” operating valve had been fully opened into the 500 mm flow line and the rock muffler. The steam turned black after ca. 1 min. flow due to Fe-O-S-compounds from corroded liner.
- Video clip: After ca. 10 min. flow on the main flow line the steam turned white again and became superheated ca. 25-30 min from the beginning of flow test 4.
- Video clip: This video clip shows the transparent superheated steam flow ca. 12 h after opening. T: 410°C, P: 40 bar, H: 3150 KJ/Kg, Power output potentially 30-40 MWe. The well was closed 11. August for modification on the flow line. Wet scrubbing pilot test will begin about mid-September 2011.
The flow test of IDDP-1 began in March 2010, when the well was initially discharged. The initial flow test (phase 1) took place during 22-31 March 2010, when the well discharged through a DN100 (4’’) pipeline. The full-initial flow test (phase 1b) began 11 May, by discharging the well through a DN250 (10’’) pipeline with a 125 mm orifice. Initially the flow was wet but it has been superheated since May 18. This test is ongoing.
IDDP was presented by 15 papers at the World Geothermal Congress in Indonesia 25-30 April 2010. Three papers on drilling technology were presented at technical sessions 4A, 5A and 6A, and the remaining papers were presented at special IDDP session 18J and 19J – see link at:
View of the drill rig looking over the explosion crater Víti, which formed in an eruption 1724 AD. The Tyr drillrig can be seen in the background.
25 March 2009, at 21:40 Jardboranir Ltd drill rig Tyr started drilling into rocks again, at a depth of 796.7 m, relative to Tyr’s platform (7.8 m above surface). The photo shows a view from the AD 1724 Víti explosive crater (since the Myvatn Fires), some 0.5 km across towards the drill rig. The Leirhnukur fumarole field is seen in the background as well as craters from the 1975-1984 eruptive fissure of the Krafla Fires, some 1.5 km west of the rig. Daily news from the drill site are provided at:
The “kickoff meeting” at the Orkugarður auditorium in Reykjavik was held two weeks before a rig is to be activated at the Krafla geothermal field in NE Iceland to resume drilling the IDDP-1 exploratory/research well. Drilling and casing to 800 m occurred in December 2008. Drilling to 4500m depth should take a further 115 days. The workshop reviewed the planning for drilling and testing this well, and integration of the drilling and activities on site, including downhole logging and experiments, and sampling of rocks and fluids, including coring. The more than 40 attendees were mostly members of the three advisory panels, Drilling Technology, Geosciences, and Fluid Handling and Evaluation, together with the downhole logging group (ISOR and HITI), Deep Vision (the steering committee), and SAGA (the advisory committee). The agenda and a list of attendees of the workshop are attached to this report. After a day of presentations by representatives of these groups, and a half day of discussions, a number of items were discussed that could require further review or action, that are listed in this report. Overall, however, the review of the comprehensive plans presented was very positive: there were no “show-stoppers” identified.
During the 25th of November 2008 a very successful spot coring test was performed at 2800 m depth in the production well RN-17 B at Reykjanes. Well RN-17 B was being reconditioned by side-tracking it out of well RN-17 at 930 m depth below the production casing, to become an inclined exploration/production well. The core test was performed in an open hole at 35° inclination with newly built coring equipment. The main benefit of the core barrel is its unique feature to enable much greater water flow-rates for cooling during coring, or up to 40 l/s, as compared to conventional core barrels with only 4-5 l/s flow rates. A 9.3 m hydrothermally altered hyaloclastite breccia was cored with so to speak 100% core recovery. The newly purchased ICDP core barrel and bits proved just perfect for our IDDP purpose of coring in high temperature wells, and only minor improvement on the equipment is needed before further spot coring in the IDDP-1 well in Krafla next summer. The core bit experienced some 280°C during coring, and the entire operation took some 33 hours rig time. A short report is attached.