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II. IEA GEOTHERMAL R&T PROGRAMME ANNEX VII Meeting of 12 October 2004 Several issues were raised regarding Subtask A. First of all, Mexico (CFE) has not yet accepted the leadership role for this Subtask, which was formerly led by Japan (NEDO). A need was identified for an explicit description of responsibilities for the Subtask Leader. CFE will be contacted to ascertain their position on the issue of subtask leadership. The overall perception was that this Subtask suffers from a lack of cost and performance data. Another issue concerned the specification of how shared data will be used so as to allay company concerns about the release of proprietary information. The participants agreed to compile (by 15 January 2005) individual lists of specific data that they would (1) find useful and (2) be willing to share. It was pointed out that including information pertinent to the contractual basis under which a particular well was developed would enhance the database. Such information would clarify the distribution of risk. For example, it would be useful to know whether the well contract was based on either price per meter, day rate, fixed price plus price/meter, lump sum, or other combination of terms. Also, data pertaining to the type of rig (top drive or rotary table) and the type(s) of drilling fluid used on a given well would also be of value. 5.3.2 Subtask B- Geothermal Drilling Best Practices Handbook Meeting of 17 March 2004 It was indicated that enough CFE material exists to move ahead with a Handbook of best practices, but the Subtask needs support in the form of funding for CFE researchers or an outside contractor. The Handbook will document practices that have been found safe, efficient, and cost- effective in international geothermal drilling. It was pointed out that Iceland is drilling over 200 m per day and the Handbook would be quite useful in helping to reduce costs. A code of practice exists in New Zealand and the code might serve as a reference for the Handbook. At the meeting in Reykjavik, two steps were proposed for this Subtask: attempt to identify existing literature references that are applicable to various sections of the Handbook, and post the Handbook outline on the GIA website and solicit comments. No progress was reported on these items. Two options for completing the Subtask were discussed: (1) compile a set of references that would serve as a guide to the literature of best practices; (2) proceed with the Handbook as originally planned. Option (1) could be accomplished with nominal cost; option (2) would require the establishment of a common fund. No decision was made as to which option to pursue, but the participants felt that references could be obtained without difficulty. The status of posting the Handbook outline on the website will be investigated. All participants will provide a list of references to best drilling practices in their countries. A contact person at Sandia to whom the references should be sent will be identified. Meeting of 12 October 2004 Focus was on defining the current status of the development of a "best practices" Handbook for geothermal drilling. Iceland had prepared a list of references used for drilling classes, as well as a draft Table of Contents for the Handbook. It was agreed this information would be forwarded for distribution to the other Annex VII members. Mexico (CFE) confirmed its intention to maintain its joint leadership role (with Iceland) for this Subtask. IEA Geothermal R&T Annual Report 2004.doc 39PDF Image | Geothermal Energy Annual Report 2004
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