STATUS OF SHORT/MEDIUM TERM TEST OF THE HEAT EXCHANGER

Task 1: Short term circulation

Figure Task Date
Set up circulation loop:
Welding 40PN 6inch pipes		 April 2005
Set up circulation loop:
Grinding and cutting the 40PN 6inch pipes with angle grinder		 May 2005
Set up circulation loop:
Electrical welding of the 40PN 6inch pipes, more then 120 welded joints 		May 2005
Set up circulation loop:
Logging by Schlumberger with USIT-technology to get informations about the casing conditions, all 4 wells GPK1-4 		May 2005
Set up circulation loop:
Calibration of the pressure transducers and temperature sensors 		May 2005
Set up circulation loop:
Installation of automated greasing system with two pumps and 9 outlet lines for lubrication and sealing the pack off 		June 2005
Start short term circulation:
Starting the short term circulation. Pumping into well GPK3 and production from wells GPK2 and GPK4 		July 2005
Short term circulation is running the 6st week:
Successful cleaning the heat exchanger due to firmly bonded deposits, which cause bad heat conductance. The improvement of primery outlet temperature is from 80 to 52 degrees C. The short term circulation is running for 6 weeks. The technical equipment is working properly. 		August 2005
Short term circulation is running the 9st week:
Logging of the two boreholes GPK3 and GPK4 by the Geoservices Company. (pT downhole data) 		September 2005
Short term circulation is running for 13 weeks:
Installation of hydraulic pump to improve the productivity of GPK4 		October 2005
Short term circulation 4th month:
Cleaning the socket filters, change the filter bags 		November 2005
Short term circulation 5th month:
Installation of additional hydraulic pump to increase the injected flow for GPK3 		December 2005
Short term circulation 5th month:
Modification on flowmeters concerning the installed place and protecting the sensors, pipes and hoses against frost 		December 2005
Short term circulation 5th month:
End of short term circulation with 15l/s injection and production (no loses)
December 2005