First Quarter Exploration Highlights
- Gas discovery at KG#21
- Testing to commence on KG#19 and KG#33
- Field Development Plan approved for Tarapur 1 Discovery Area
KG Offshore Block
KG#21 Well
The KG#21 exploratory well commenced drilling on September 22, 2008 using the Perro Negro 3 (PN-3) jack-up drilling rig. The well is located approximately 1.36 kilometers northwest of the KG#8 discovery in approximately 60 meters of water depth in the southwestern portion of the KG Offshore Block in the Deen Dayal West fault block. The well was slightly deviated and was drilled to a total measured depth (MD) of 5,656 meters being a total vertical depth (TVD) of 5,467 meters. The objective of the KG#21 location is two main targets with the primary target being the Lower Cretaceous sequence which was unable to be tested in the KG#31 exploratory well due to mechanical problems, and the secondary target being the Upper Cretaceous fan deposits.
The first drill stem test (DST-1) was conducted by perforating 37.5 net meters over the gross interval 5,593.7 to 5,642 meters MD. This successful DST-1flowed during clean-up, on a 36/64 inch choke, at a stabilised rate of 20 MMscfd gas and 2,600 bbl/d water with 4,670 psi flowing well head pressure. During the main flow, on a 20/64 inch choke, the well flowed at a stabilised rate of 10 MMscfd gas and 1,200 bbl/d water with 7,220 psi flowing well head pressure.
GSPC as operator is currently planning seven drill stem tests on the KG#21 well in the Lower Cretaceous sequence over the 722 gross meter interval of 4,920.5 to 5,642.5 meters and one drill stem test in the Upper Cretaceous sequence over the 15 meter interval 3,615 to 3,630 meters. The next test to be conducted on the KG#21 well will be DST-2 which will be the perforation of 25 net meters over the interval 5,517.5 to 5,567.5 meters MD.
Mr. Jean P. Roy, President and CEO of the Company was quoted as saying "I believe that the positive test results from DST-1 demonstrate that the Deen Dayal West Structure has no determined base limit to the gas column and it is only current rig limitations that will constrain the gas reserve potential."
KG#33 Well
The KG#33 appraisal well commenced drilling on November 4, 2008 using the Atwood Beacon jack-up drilling rig. The well is located approximately 6.5 kilometers northeast of the KG-8 discovery in approximately 109 meters of water depth in the southeastern portion of the KG Offshore Block in the Deen Dayal East fault block. The well was directionally drilled to 5,126 meters MD or 4,596 meters TVD. The objective of the KG-33 location is to explore the hydrocarbon potential of the Lower Cretaceous sequence in the Deen Dayal East fault block and correlate to the KG#16 discovery well.
DST-1 was conducted by perforating 5.0 net meters over the gross interval 4,828 to 4,868 meters MD. This DST-1 flowed during clean-up, on a 20/64 inch choke, at a stabilised rate of 0.7 MMscfd gas with 800 psi flowing well head pressure. DST-1 has been stopped and the operator intends to perform a hydraulic fracture of the zone and re-test the interval.
GSPC as operator is currently planning three drill stem tests on the KG#33 well over the 313 gross meter interval of 4,555 to 4,868 meters MD, with the next test DST-1A, being a retest of the DST-I interval after the hydraulic fracture.
KG#19 Well
The KG#19 exploratory well is located approximately 11 kilometers northeast of the KG#8 discovery in approximately 198 meters of water depth in the southeastern portion of the KG Offshore Block in the Deen Dayal East fault block. The KG#19 well commenced drilling on May 2, 2008 using the Essar Wildcat self propelled semi-submersible drilling rig. The well was suspended after setting the casing at 889 meters MD so that the Essar Wildcat rig could be repaired with a new 15,000 psi blow out preventor (BOP). The Essar Wildcat rig resumed drilling the KG#19 well on January 1, 2009. The well was vertically drilled to 5,357 meters MD or 5,351 meters TVD. The objective of the KG#19 location is to explore and probe the hydrocarbon potential of the Lower Cretaceous sequence in the Deen Dayal East fault block.
The KG#19 well has been successfully logged and a seven inch liner is currently being run to total depth. At present GSPC has identified two zones for testing covering the intervals 4,440 to 4,535 meters MD and 4,800 to 4,960 meters MD.
Mr. Jean P. Roy, President and CEO of the Company was quoted as saying "the KG#19 well logs are very encouraging and I believe the 500 meter gross pay section will extend over a large area to the north and east of this location."
KG#32 Well
The KG#32 appraisal well commenced drilling on May 2, 2008 using the Deep Driller 1 jack-up drilling rig. The well is located approximately 8.3 kilometers northeast of the KG#8 discovery and approximately 1 kilometer northeast of the KG-22 location in approximately 60 meters of water depth in the southeastern portion of the KG Offshore Block in the Deen Dayal North fault block. The well was directionally drilled to 5,492 meters MD being 4,756 meters TVD. The objective of the KG#32 location was to explore the hydrocarbon potential of the Lower Cretaceous Early Rift Fill sequences in the Deen Dayal North fault block and to appraise the Upper Cretaceous gas discovery made in the KG#22 well.
DST-1 was conducted by perforating 80.0 meters over the interval 4,897 to 4,977 meters MD. This DST-1flowed during clean-up, on a 32/64 inch choke, at stabilised rate of only 0.5 MMscfd gas with 188 psi flowing well head pressure. The formation was found to be tight and the KG-32 well has subsequently been suspended and the Deep Driller 1 drilling rig has been demobilized.
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