Central Petroleum soon to receive preliminary results from pressure testing of Surprise 1

Central Petroleum (ASX: CTP) is expecting preliminary results from a testing program to determine the fluid content and hydrocarbon saturation of its Surprise-1 well in the Amadeus Basin in the coming week.

The company has completed the running of electric logs at the well and is in the process of measuring formation pressures and sampling reservoir fluids through the use of a Modular Formation Dynamics Tester (MDT) tool.

In addition to establishing the fluid content and hydrocarbon saturation of the reservoir, the process will, to an extent, also test the permeability and producibility of the reservoir.

Seismic check shots and rotary sidewall cores are also planned to add to the database being used to assess the hydrocarbon content of the Surprise prospect.

Minor delays are being experienced as a result of an operational issue which has arisen while running the MDT tool.

Central began running extensive logging suites last weekend followed by the running of 7 inch casing at Surprise-1 after the well reached a total depth of 2,732 metres within the Pacoota Sandstone.

The company has continued to witness fair to good oil shows from the well since re-entry last month. Just before hitting the current total depth, the well intersected 20 metres of continuous oil flows within the Lower Stairway Sandstone to the Middle Stairway Sandstone intervals.

A possible defining factor of the well’s potential is that RPS Energy estimated that one 9 metre zone alone in the already drilled section of Surprise-1 has the ability to flow at between 500 to 1,000 barrels per day.

Depending on the outcome of the log and pressure data analyses, plans are to drill laterally into the best oil zones with a horizontal section or sections approaching about 500 metres or more in length.

The gas, with the high proportion of C2, C3, iC4/nC4 and iC5/nC5, supports the existence of an oil dominated hydrocarbon accumulation.

Originally published at: http://www.proactiveinvestors.com.au/companies/news/23286/central-petroleum-soon-to-receive-preliminary-results-from-pressure-testing-of-surprise-1--23286.html