Project Profile
Location: Stillwater-Moana area of the West Coast of the South Island, east of Greymouth, New Zealand
Area: 143.6 sq km
Start-up Year: -
The PEP includes the south eastern corner the Kotuku oil seeps. The area is known for the largest natural oil seeps in New Zealand. Mosman\'s short term focus will be PEP 38526. The PEP is located near Greymouth on the South Island in the southern extension of the proven Taranaki oil system. In the northern side of Taranaki there are some 20 fields which have produced in excess of 400 mmbbls of oil and 60,000 bcf of gas. The Arnold River bisects the Permit north northwest-south southeast, and several roads exist within its area including the east-west State Highway 7 in the northern part. Vegetation comprises open farmland pasture, native bush and lowland forest.
The south eastern corner of the PEP 38526 Area has been subjected to a long history of exploration with drilling starting in 1902. A total of around 58 shallow wells are documented to have been drilled within or close to the PEP. Many of these wells were drilled prior to 1940 and data is therefore limited. More recent work completed in the PEP 38526 Area includes the reprocessing of existing 2D seismic acquired between 1963 and 1987, the drilling of the Widespread-1A well (TD 90m) in 2010 and acquisition of 20km of electrical resistivity survey in 2012.
Exploration studies during the first term of the PEP 38526 Area have identified several leads of possible shallow oil accumulation in the southern section of the PEP 38526 Area around the Kotuku anticline structure. The extent and depth of this area has been assisted by Electrical Resistivity Tomography imaging. Ten wells have been drilled within the PEP 38526 Area itself and a number in the immediate area.
Mosman commissioned SRK to integrate all available data, including the previous operator\'s 20 km of seismic and reprocessed data; one well on the Kotuku feature to 90m; and around 58 other wells and 20 seismic lines into a single integrated petroleum model that mapped 22 leads and prospects over the Kotuku anticline. As part of this process Mosman located two additional seismic lines, and SRK completely reworked the model resulting in new Prospective Resources. This has meant for the first time, that Mosman is aware of, all data is now in one model. This has resulted in a marked improvement in understanding and drilling locations are now being identified.
Mosman has committed to drill two wells on the Kotuku anticline structure to test shallow oil production on the crest of the Kotuku structure by September 2014. Further, the Company must also acquire up to 40 km of additional seismic by September 2015.
Operators:
Mosman Oil & Gas Ltd: Operator with 100% interest
Contractors:
Drill Force New Zealand Ltd: drilling contract for the June 2014 drilling programme, which comprises two wells plus two contingent wells, includes the planned Crestal-1 and Crossroads-1 wells