Three deep wells of opportunity for will be drilled, one at each drillsite, Krafla, Hengill and Reykjanes. The potential sites are shown in 3D at A new poster on the IDDP status April 2007, will be presented at ENGINE Workshop 2 in Volterra, Italy, 1-4 April 2007.


SAGA Report No.6

IDDP Workshop 5 was held in Reykjavik 7-8 March 2007. In an opening address, Dr. Þorkell Helgason, Director General of Orkustofnun (the National Energy Authority), informed the participants, on behalf of the Icelandic Energy Consortium, that in the next few years, deep (> 3.5 km) exploratory boreholes are likely to be drilled in each of the three major geothermal fields in Iceland, namely the Krafla-, the Reykjanes-, and the Hengill field. Þorkell concluded by assuring the workshop participants that the IDDP now seemed to be „healthier“ than ever before. The purpose of Workshop 5 was twofold, firstly to discuss technical issues on drillcoring options and strategy in drilling into supercritical regime below 3.5 km depth, and secondly, to discuss and review the Feasibility Report (2003) plan on flow testing and sampling of supercritical fluids after drilling. The proceeding of the workshop and reccomendations by the Science Application Group of Advisors is described in SAGA Report 6. SAGA’s unanimous recommendation is that obtaining drill cores, especially in the transition from subcritical to supercritical and in the supercritical regime, remains an essential requirement for characterizing the deep reservoir. One major cost saving issue concerning flow testing after drilling, would be to simplify the fluid sampling and handling program that was recommended in the Feasibility Report (2003), by abandoning the system referred to as “The Pipe”, and replace it with a less technically challenging sampling system.



Date: November 10 – November 30, 2006

Iceland Deep Drilling Project announces: Pre-Qualification Documents KRA-46 for Drilling Works

Landsvirkjun, on behalf of IDDP, is seeking applications from drilling contractors for participation in negotiated procedure for tendering of Drilling Works according to Pre-Qualification Documents KRA-46, which are available at Landsvirkjun, Háaleitisbraut 68, 103 Reykjavík against the payment of IKR 3,000.-.

Applications shall be delivered to Landsvirkjun, Purchasing Department, Háaleitisbraut 68, 103 Reykjavík before 15:00 GMT, Thursday, December 7th 2006.

The project involves drilling and setting casings for a 3500 m deep high temperature well in the year 2008. For information on the likely geothermal conditions at the potential drill site at Krafla see: Krafla-IDDP-Review-Report-ISOR-2006-030.pdf

Download the .pdf file here.



Tender documents for wellhead valves and fittings (KRA-44 and KRA-45) were announced earlier this month.

Tender documents for IDDP casings for a 3.5 km deep well will be made available at Landsvirkjun, September 19th, 2006. The tender documents are for two types of wells, i.e. for well design A, and for well design C. Bids will be opened at 14:00, November 1st, 2006.


Update on the IDDP

Earlier this year Deep Vision decided to move operations for the first IDDP deep drillhole to Krafla. Bid documents for the supply of casings and valves for the proposed well are just about being announced by Landsvirkjun, and well design is being finalized. We anticipate that the drilling will take place no later than early 2008. See IDDP_2006_update


SAGA Report No. 5

A decision is expected within few weeks where to drill the first IDDP well, be it at Krafla, Reykjanes or Hellisheidi. The 5th SAGA meeting was held in Reykjavik at the end of April 2006 to evaluate drilling options after well RN-17 at Reykjanes was lost earlier this year. The proceedings of the SAGA meeting and the ensuing meetings with DeepVision and representatives of ICDP and NSF are described in SAGA Report No. 5. At a DeepVision meeting yesterday it became clear that the evaluation process needs to continue for a few more weeks before a decision on the drillsite will be made.



IDDP is in the process of selecting a new well for deepening as RN-17 is no longer a well of opportunity. Once a new well has been selected, drill cutting samples from that well will be made available to IDDP participants, immediately. Below is a list of samples that were distributed to IDDP participants last year:

Delphine Bosch and Benoit Ildefonse (University of Montpellier) Godard, Boudier, Nicolas, Pezard, Einaudi, Laverne, Mainprice, Gibert
Study of the high temperature alteration processes in the IDDP hole: Geochemical and Petrological constraints and Petrophysical characterization of crustal rocks, with an emphasis on the role of fracturing and alteration on electrical and thermal properties
Core sample from RN19: 2245.28 to 2245.45 m, natural split.
Drill cuttings from RN17: 1550, 1600, 1650, 1700, 2100, 2150, 2200, 2250, 2700, 2800, 2850 m.

Philippe Pezard (University of Montpellier) Celerier, Gautier, Einaudi, Ildefonse, Mainprice, Gibert, Laverne
Porosity, fracturing, alteration, and stress in and near the IDDP hole; an assessment from the combined analysis of downhole geophysical data and shallow regional earthquakes

Electrical resistivity profiles
Natural gamma data
Electrical resistivity and temperature log
Caliper log

Carsten Vahle (Heidelberg) Agnes Kontny
Hot-Spot Related Crustal Magnetization and Magnetic Petrology from Scientific Drillings

Core sample from RN19: 2246.14 to 2246.22 m, natural split

G. Ómar Fridleifsson (Iceland GeoSurvey)
Geology and Hydrothermal alteration in the IDDP drillhole at Reykjanes
Core sample from RN19: 2246.22 to 2246.31 m, split.

Note: all data and materials collected so far from RN17 and RN19 are stored at the Iceland GeoSurvey offices/laboratories in Iceland. Report already available (ISOR-2005/007, 198 p.)

Giovanni Gianelli (NRC, Institute of Geosciences and Earth Resources, Pisa) Tonarini, Ottolini
Evaluation of the larger scale distribution of major, minor, and trace elements compositions accompanying the alteration of oceanic crust
Core sample from RN19: 2246.02 to 2246.14 m, natural split.
Drill cuttings from RN17: 400, 650, 750, 1100, 1450, 1550, 1700, 2150, 2800, 3000.

Julia Frolova (Moscow State University) Ladygin, Sokolov, Genshaft, Saltykovsly, Filimonov, Rychagov
Complex Petrological-Petrophysical Analyses of Rocks in Deep High-Temperature Geothermal Systems
Core sample from RN19: 2246.31 to 2246.42 m, unsplit.

Dennis Bird (Stanford; USA central science team group), Schiffman, Reed, Elders, Zierenberg
Drill cuttings from RN17 depths: 350, 400, 500, 550, 600, 650, 700, 750, 750, 800, 850, 950, 1000, 1050, 1100, 1150, 1200, 1300, 1350, 1400, 1450, 1500, 1550, 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, 2000, 2050, 2100, 2150, 2200, 2250, 2300, 2350, 2400, 2500, 2550, 2600, 2650, 2700, 2800, 2850, 2900, 2950, 3000, 3050 m.

Core from RN19: 2246.6 to 2246.7, natural split.

Drillhole RN-17 at Reykjanes has been the prime candidate for deep drilling by the IDDP. However a flow test of this well in November 2005 was cut short when it became plugged by rock debris and last week attempts to clean and condition this drillhole failed. A caliper log revealed that there has been extensive caving. We therefore reluctantly conclude that drillhole RN-17 is no longer a candidate for deep drilling by the IDDP. We must therefore now consider alternative “wells of opportunity” at the Reykjanes geothermal field for deepening.

In December 2003, Hitaveita Sudurnesja Ltd (HS) offered one in a series of several production wells they planned to drill as a candidate for deepening by the IDDP, once its production characteristics had been evaluated. HS intended to release this drillhole, or another well of opportunity, to IDDP for deepening, provided enough steam for a 100 MW power plant had been secured before mid-year 2006.

In February 2005 RN-17 was completed to 3.1 km depth, the deepest drillhole in the field, and was then the prime candidate for deepening by the IDDP. Accordingly all daily reports and well reports were written in English and, following the ICDP protocol, made available at the ICDP website, as well as on the ISOR website. ICDP agreed to finance a spot core in this well. However, by the time funding became available RN_17 had already been completed and so the core was collected from the bottom of well RN-19, another “well of opportunity” that was being drilled at that time. In 2005 the IDDP distributed samples of drill cuttings from RN-17 and core from RN-19, for study by the international science team. At the moment several groups in Italy, France, Germany, USA, Russia and Iceland are studying this material as well as drill cutting samples from other wells at the Reykjanes geothermal field. Other teams were waiting for fluid samples from the flow test of RN-17 of last November that ended abruptly due to collapse of the formation, as mentioned above.

Losing RN-17 as a candidate for IDDP deepening is most unfortunate for both Hitaveita Sudurnesja Ltd and the IDDP, while the severe financial loss has all been borne by the HS. However the IDDP will continue as other wells of opportunity are available. At the moment HS and IDDP are discussing and evaluating which of the other wells at Reykjanes can be considered for deepening. Wells RN-16, RN-19 and RN-20 are being evaluated in this respect. IDDP Deep Vision and the PI’s will make a new announcement on this matter once it is finalized.