(Gran Tierra Energy Inc., 20.Jan.2015 – Gran Tierra Energy Inc. provides an operations update on its activities in the Chaza Block in the Putumayo Basin in Colombia.
The Eslabón Sur exploration well reached a true vertical depth of 9,708 feet. Mud log and electric log data acquired during and after drilling indicate only non-commercial hydrocarbons present in the primary Caballos Reservoir. The secondary Kg Reservoir was encountered twice as a result of faulting in the structure. The upper Kg Reservoir encountered 24 feet of net oil pay and the lower Kg Reservoir encountered 4 feet of net oil pay. The Eslabón Sur well has been suspended for further evaluation of these pay zones.
The Moqueta-16 and Moqueta-17 wells have successfully been drilled, with Moqueta-16 tied in and currently on production, and Moqueta-17 currently being tested.
Gran Tierra anticipates spudding the deviated Moqueta-18i well in mid-March, 2015. This well will be drilled from the existing Moqueta-1 platform and will target a downhole position down dip from the Moqueta-13 well, which is the deepest producer in the southern block. The primary objective of the well is to test the position of the Caballos reservoir oilwater contact in the eastern part of the Moqueta field. Depending on results, the well could be completed as a water injector to maintain the reservoir pressure in the southern block of the field, or if the well intersects an oil column in the Caballos, the well could be completed as a producer. Water injection in the main block of the field has yielded very positive pressure maintenance response and associated production increases.
Gran Tierra has a 100% working interest and is operator of the Chaza Block in the Putumayo Basin.
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