Continuous Measurement of gases for Effective Geothermal Reservoir - - PowerPoint PPT Presentation

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Continuous Measurement of gases for Effective Geothermal Reservoir - - PowerPoint PPT Presentation

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PHILIPPINES Continuous Measurement of gases for Effective Geothermal Reservoir management in Manila Leyte Geothermal Mahanagdong Geothermal Field, Production Field Philippines Ma nue l S. Og e na 1 . Sie ga 1 , Danilo B. Dac illo 1 LEYTE ,

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PHILIPPINES

LEYTE

Manila Cebu

Leyte Geothermal Production Field

Ma nue l S. Og e na 1

, F

ar r e ll L . Sie ga 1, Danilo B. Dac illo 1 T homa s Str e il2 a nd Ve ikko Oe se r

2

2) SARAD GmbH in cooperation with 1) PHILIPPINE NATIONAL OIL COMPANY GEOTHERMAL DIVISION

Continuous Measurement of gases for Effective Geothermal Reservoir management in Mahanagdong Geothermal Field, Philippines

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A MEDAS has been installed in four production wells in the Mahanagdong production sector of the Leyte Geothermal Production Field located in the island of Leyte, central

  • Philippines. This field is chosen because: 1) it is the largest

geothermal field in the Philippines with five separate power plants with total installed capacity of about 700 MW, and 2) the area is bisected by the Philippine Fault, a major left- lateral transcurrent fault similar to the San Andreas fault. The System is installed in the „Greater Tongonan Geothermal field “ in Leyte on the MG5 pad with the bore holes

MG 18 D ( high gas) ( CAN 14 ) MG19D ( Calcit in flow ) ( CAN 12 ) MG 23D ( cold water in flow) ( CAN 13 ) MG32D ( high gas ) ^ ( CAN 15 )

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COOLED GAS COOLED BRINE

TO FREE AIR TO FREE AIR LOGGER LOGGER

MULTI SENSOR POWER SUPPLY CO2 SENSOR RADON SENSOR

GSM SIM GSM SIMCARD ARD

LAPT LAPTOP w/ OP w/ MODEM MODEM DIA DIAL-UP CONNE CONNECTION ON Schematics of remote data acquisition for the MEDAS

STATION-A

STATION-B STATION-C STATION-D

! SARAD

MAIN UNIT MODEM

ST AT IO N A ST AT IO N B ST AT IO N C ST AT IO N D MAIN ST AT IO N MO DE M

Parameters monitored in each substation.

p H C h lo rid e R e d o x P o te n tia l C o n d u c tivity W a te r T e m p e ra tu re W A T E R S tre a m R a d o n C O 2 G a s F lo w G a s T e m p e ra tu re G a s R e la tive H u m id ity G A S S tre a m P A R A M E T E R S p H C h lo rid e R e d o x P o te n tia l C o n d u c tivity W a te r T e m p e ra tu re W A T E R S tre a m R a d o n C O 2 G a s F lo w G a s T e m p e ra tu re G a s R e la tive H u m id ity G A S S tre a m P A R A M E T E R S

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Redoxpotential in Borehole MG18D

  • 0,3
  • 0,25
  • 0,2
  • 0,15
  • 0,1
  • 0,05

10.09.2003 09:56 10.10.2003 02:43 12.10.2003 08:13 14.10.2003 14:12 16.10.2003 19:48 19.10.2003 01:18 21.10.2003 10:13 23.10.2003 18:36 26.10.2003 00:06 28.10.2003 06:15 30.10.2003 12:58 01.11.2003 18:43 04.11.2003 02:58 06.11.2003 08:28 11.11.2003 18:26 13.11.2003 23:56 16.11.2003 08:31 18.11.2003 14:54 20.11.2003 20:24 23.11.2003 08:08 25.11.2003 14:05 28.11.2003 21:51 01.12.2003 03:21 03.12.2003 09:06 10.12.2003 18:46 13.12.2003 00:16 15.12.2003 06:57 17.12.2003 12:51 19.12.2003 18:21 21.12.2003 23:51 24.12.2003 15:11 26.12.2003 20:41 29.12.2003 02:11 06.01.2003 14:32

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Redox potential in MG 23 cold water in flow

  • 0,20
  • 0,10

0,00 0,10 0,20 0,30 0,40 0,50 0,60 0,70 0,80 13.03.04 15:07 14.03.04 15:37 15.03.04 16:07 16.03.04 16:37 17.03.04 17:07 18.03.04 17:37 19.03.04 18:07 20.03.04 18:37 21.03.04 19:07 22.03.04 19:37 07.04.04 06:29 08.04.04 06:59 09.04.04 07:29 10.04.04 08:02 11.04.04 08:32 12.04.04 09:02 13.04.04 10:31 14.04.04 11:01 15.04.04 11:31 16.04.04 12:01 17.04.04 17:44 18.04.04 18:31 19.04.04 19:01 20.04.04 19:31 21.04.04 20:01 22.04.04 21:58 23.04.04 22:28 29.04.04 23:05 30.04.04 23:35 02.05.04 00:05 03.05.04 00:41 04.05.04 01:11 05.05.04 01:41 06.05.04 09:09 07.05.04 09:39 08.05.04 10:09 09.05.04 10:39 10.05.04 12:56 11.05.04 13:26 13.05.04 12:38 14.05.04 13:08 Date / time redox potential

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5 1 0 1 5 2 0

9/1/2005 9/8/2005 9/15/2005 9/22/2005 9/29/2005 10/6/2005 10/13/2005 10/20/2005 10/27/2005 11/3/2005 11/10/2005 11/17/2005 11/24/2005

  • No. of Local Events per Day

1 1 0 1 0 0 1 0 0 0 1 0 0 0 0

Radon (kBq/m3)

5 0 6 0 7 0 8 0 9 0 1 0 0 CO

2

(mol%)

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1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0

Cl (ppm)

1 0 0 0 2 0 0 0 3 0 0 0 4 0 0 0

9/1/2005 9/8/2005 9/15/2005 9/22/2005 9/29/2005 10/6/2005 10/13/2005 10/20/2005 10/27/2005 11/3/2005 11/10/2005 11/17/2005 11/24/2005

Cl (ppm)

5 0 0 0 5 5 0 0 6 0 0 0 6 5 0 0 7 0 0 0

Cl (ppm)