Moroccan heavy oil dampener

March 17, 2014

Cairn Energy's JM-1 well, offshore Morocco, is to be plugged and abandoned without testing, after funding heavy oil. 

The JM-1 well (operated by Cairn with 37.5% WI) was drilled to evaluate Upper Jurassic and Middle Jurassic objectives. The well reached a total depth of 3711m true vertical depth. 

In the Upper Jurassic section, the well confirmed the presence of heavy oil over a gross interval of 110m, as originally tested in the 1968 MO-2 well, about 2km from the JM-1 well. 

"Reservoir quality and the oil gravity in the Upper Jurassic across the Cap Juby structure require further evaluation by Cairn and its joint venture partners (Office National Des Hydrocarbures et Des Mines “ONHYM” and Genel Energy)," said Cairn.  

"Work is ongoing to correlate the core and log data from JM-1 with other wells on Cap Juby to evaluate the extent of moveable hydrocarbons and how any further assessment should be conducted."

The Middle Jurassic objective was encountered with limited primary porosity and evaluation of well logs and side wall cores continues.

The next well in Cairn’s planned exploration program is FAN-1, in the Sangomar, Sangomar Deep, and Rufisque blocks (Cairn 40% WI, Operator) offshore Senegal.  

This well will target multiple stacked structural and stratigraphic fan closures interpreted as trapping a variety of potentially thick, high quality clastic reservoirs.



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