Document Actions
Tui-3H oil production well nears completion
10 April 2007 - The second production well in the Tui oil field in offshore Taranaki is close to completion, operator AWE Ltd reports.
The Tui area field's floating production storage and offloading vessel, Umuroa, has also completed conversion from a tanker in Singapore and is now heading to New Zealand, while progress has been made in construction of other components of the field.
AWE says that the Ocean Patriot semi-submersible rig has drilled the Tui-3H well to total measured depth of 5384 metres, with the last 1267 metres being near horizontal following close to the top of oil bearing reservoir.
The last 1173 metres was drilled within an oil column of
6-13 metres — within the range of expectations.
The Tui-3H well, the second of the two production wells in the separate Tui field, was running production tubing as part of the completion operations. Drilling progress for the latest week was 204 metres and a production liner was successfully set in the horizontal section, AWE says.
Following the completion operations, the Tui-3H well will be suspended and the rig will be moved to the nearby Amokura field where the Amokura-2H well will be drilled. This is the only production wells of the four Tui Area field wells which remain to be drilled from scratch. Amokura-2H, will be drilled and have the last subsea tree installed immediately.
The fourth and final Tui Area well in the Pateke field
(Pateke-2H) already has the tophole sections drilled and cased with the subsea production tree installed.
The Tui Area Development in PMP 38 158, approximately 50 km offshore from the Taranaki coast is scheduled to produce first oil by June 30, 2007, and reach a production peak of 50,000 bopd.
AWE reports in its half year report that the first completed Tui well Tui-2H intersected a thicker oil column than expected which led to the well being lengthened and completed with an 1850 metre horizontal producing section in the oil reservoir.
The cost of drilling the extended well, and the slower drilling rates generally have resulted in a 9% (US$20 million gross) budget increase for the project.
AWE says in the report that all of the development's major construction components are now manufactured, and most have been delivered to New Zealand. This equipment includes the tubulars and other well related equipment, subsea trees, FPSO anchors and associated mooring components, flowlines, gas lift lines, umbilicals, risers and mid-water arches.
The anchors and chains for the FPSO have been successfully pre-installed. Two of the four mid-water arches, the most weather-sensitive installation activity, have been installed in a favourable weather window. The mid-water arches were manufactured in New Plymouth.
The FPSO Umuroa, which is being leased from the Norwegian company Prosafe, is scheduled to arrive in New Zealand in mid-April.
Prosafe has reported that the Umuroa has left the Keppel Shipyard in Singapore and is now heading to the Tui field.
Mooring of the FPSO followed by tie-in of the flowline and umbilical risers and commissioning of subsea and ship-side systems is scheduled to proceed through Q2, 2007.
Sources: AWE, Prosafe.
AWE says that the Ocean Patriot semi-submersible rig has drilled the Tui-3H well to total measured depth of 5384 metres, with the last 1267 metres being near horizontal following close to the top of oil bearing reservoir.
The last 1173 metres was drilled within an oil column of
6-13 metres — within the range of expectations.
The Tui-3H well, the second of the two production wells in the separate Tui field, was running production tubing as part of the completion operations. Drilling progress for the latest week was 204 metres and a production liner was successfully set in the horizontal section, AWE says.
Following the completion operations, the Tui-3H well will be suspended and the rig will be moved to the nearby Amokura field where the Amokura-2H well will be drilled. This is the only production wells of the four Tui Area field wells which remain to be drilled from scratch. Amokura-2H, will be drilled and have the last subsea tree installed immediately.
The fourth and final Tui Area well in the Pateke field
(Pateke-2H) already has the tophole sections drilled and cased with the subsea production tree installed.
The Tui Area Development in PMP 38 158, approximately 50 km offshore from the Taranaki coast is scheduled to produce first oil by June 30, 2007, and reach a production peak of 50,000 bopd.
AWE reports in its half year report that the first completed Tui well Tui-2H intersected a thicker oil column than expected which led to the well being lengthened and completed with an 1850 metre horizontal producing section in the oil reservoir.
The cost of drilling the extended well, and the slower drilling rates generally have resulted in a 9% (US$20 million gross) budget increase for the project.
AWE says in the report that all of the development's major construction components are now manufactured, and most have been delivered to New Zealand. This equipment includes the tubulars and other well related equipment, subsea trees, FPSO anchors and associated mooring components, flowlines, gas lift lines, umbilicals, risers and mid-water arches.
The anchors and chains for the FPSO have been successfully pre-installed. Two of the four mid-water arches, the most weather-sensitive installation activity, have been installed in a favourable weather window. The mid-water arches were manufactured in New Plymouth.
The FPSO Umuroa, which is being leased from the Norwegian company Prosafe, is scheduled to arrive in New Zealand in mid-April.
Prosafe has reported that the Umuroa has left the Keppel Shipyard in Singapore and is now heading to the Tui field.
Mooring of the FPSO followed by tie-in of the flowline and umbilical risers and commissioning of subsea and ship-side systems is scheduled to proceed through Q2, 2007.
Sources: AWE, Prosafe.
