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24 June 2009
Gulf Keystone Petroleum Ltd.
("Gulf Keystone" or "the Company")
KURDISTAN DRILLING UPDATE
Shaikan-1 Exploration Well
Gulf Keystone Petroleum Ltd (AIM: GKP), an independent oil and gas exploration company with interests in Algeria and Kurdistan, today announces the following progress update on the Shaikan-1 exploration well, Shaikan block, the Kurdistan region of northern Iraq.
The Shaikan-1 well was spudded on 27 April with a planned TD, pending actual drilling results, of 3000 to 3500 metres. The range of TD depths reflects the under explored nature of the area and the lack of nearby correlation wells.
Following the setting of 20" surface casing at about 100 metres, the well plan called for the drilling of an 8-1/2" pilot hole down to the 13-3/8" intermediate casing point. This decision was based on a number of operational considerations. Primarily, the fractured nature of many of the shallow geological formations and the resulting high likelihood that mud returns would be lost and thus much of the interval would have to be drilled without the information normally gained from drilling mud returns. Under these conditions it is more prudent to drill a smaller, easier to control pilot hole as a first step.
Much of this section was, indeed, drilled with little or no drilling mud returns. In addition, consistent with the active oil seeps in the area, much of the pore space in these shallow sections was filled with tar and very heavy, dead oil. At depths below 1350 metres the well began to encounter lighter, live oil shows.
Subsequently, it was decided to log the entire open hole from 100m down to 1510 metres. However, swelling shales prevented the logging tools from getting below 1000 metres. Reverting to the planned well program, it was decided to open the pilot hole to the full 17-1/2" diameter necessary for the running of the intermediate casing.
Currently the well is drilling 17-1/2" hole at about 1100 metres towards the planned intermediate
casing point at 1350 metres. Oil shows have increased significantly as the larger hole approaches the deeper portions of the pilot hole. After setting the 13-3/8" casing at 1350 metres, GKP plans to log the remaining portion of the open hole down to 1510 metres. It is this lower portion of open hole that has shown indications of porosity and from which we believe the oil inflow originates. Pending log results, a limited flow test may be warranted.
After evaluation of this unexpected shallow zone, the well will be drilled to the next casing point as planned. The primary zones of interest for this well are still below the depth of current activities. Plans are to reach the final TD of 3000 to 3500 metres, pending actual well results and any future testing, during September.
The Shaikan Block is situated near the city of Dihok, approximately 85 kilometres North-West of Erbil and covers an area of 283 square kilometres. The partners in the Shaikan block are Gulf Keystone Petroleum International Limited (75% working interest and operator), Texas Keystone (5%) and MOL (20%).
Todd Kozel, Executive Chairman of Gulf Keystone, commented:
"Although we are at an early stage in the drilling of this well, we are encouraged by these shallow zone live oil shows and by the good progress our drilling crew is making despite some difficult geological conditions. Subject to what we encounter in the primary zones, we expect Shaikan-1 to reach target depth in line with our planned schedule. "
Enquiries
| Gulf Keystone Petroleum: | +44 (0) 20 7514 1400 |
| Todd Kozel, Executive Chairman | |
| Ewen Ainsworth, Chief Financial Officer | |
| RBC Capital Markets: | +44 (0) 20 7653 4667 |
| Sarah Wharry | |
| Tristone Capital Limited: | +44 (0) 20 7355 5800 |
| Simon Ashby-Rudd | |
| Majid Shafiq | |
| Citigate Dewe Rogerson: | +44 (0) 20 7638 9571 |
| Martin Jackson | |
| Emma Woollaston |
or visit: www.gulfkeystone.com
Christopher Garrett, the Company's Vice President of Operations, who has over 29 years relevant experience within the sector meets the criteria of a qualified person under the AIM guidance note for mining, oil and gas companies, and has reviewed and approved the technical information contained in this announcement. Mr Garrett is a Fellow of the Geological Society, a member of the Petroleum Exploration Society of Great Britain, and a Certified Petroleum Geologist (American Association of Petroleum Geologists).