Harvest Natural Resources announces another oil discovery in the pre-salt offshore Gabon

Monday, February 11, 2013
  • The DTM-1 well was initially drilled in 380 feet of water to a vertical depth of 11,260 feet.
  • The well will be suspended pending future appraisal and development activities and the rig will be released and demobilized.

Harvest Natural Resources, Inc. (NYSE: HNR) announced an update to its drilling operations in the Dussafu Tortue Marin-1 (DTM-1) well drilled in the Dussafu Marin PSC, offshore Gabon, West Africa. Harvest operates the Dussafu PSC, holding a 66.667% interest.

The DTM-1 well was initially drilled in 380 feet of water to a vertical depth of 11,260 feet. On January 4, 2013, Harvest announced an oil discovery in the pre-salt Gamba and Dentale reservoirs with plans to drill a sidetrack to appraise the extent of the Dentale oil discovery.

The Tortue oil discovery has been appraised by drilling a sidetrack (DTM-1ST1) to the southwest to test the lateral extent and structural elevation of both the Gamba and Dentale reservoirs. The sidetrack was drilled to a Total Depth (TD) in the Dentale of 11,385 feet, 10,790 feet True Vertical Depth Subsea (TVDSS), approximately 1,800 feet from the original wellbore and found 65 feet of oil pay in the primary Dentale reservoir with better reservoir character and an apparent similar fluid level to that encountered in the vertical well, DTM-1. In addition, several other stacked sands with oil shows were encountered; however, due to a stuck downhole tool, logging operations in the sidetrack were terminated early before pressure data could be collected to confirm connectivity.

The well will be suspended pending future appraisal and development activities and the rig will be released and demobilized.

Reservoir and conceptual engineering studies will start with the aim of evaluating the commerciality of the discovered oil in the Gamba and Dentale reservoirs at Tortue, as well as Harvest's previous Ruche oil discovery and the nearby Walt Whitman and Moubenga oil discoveries to determine the optimum development options for the block.

The addition of the Tortue oil discovery extends the proven fairway for stacked pre-salt reservoirs and has demonstrated the exploration potential for the outboard part of the Dussafu license.

This article is for information and discussion purposes only and does not form a recommendation to invest or otherwise. The value of an investment may fall. The investments referred to in this article may not be suitable for all investors, and if in doubt, an investor should seek advice from a qualified investment adviser. More

Related News

Join 70,000 other oil and gas professionals

Network with others, build your profile, and receive the latest oil and gas news in your inbox. It's free!

Your details are never shared or sold. We hate spam too.

» More Jobs       » Upload a free Job       » Upload your CV

More Europe Jobs

More Global Jobs

Opinion & Commentary

  • Eight pieces of our oil price predicament
    A person might think that oil prices would be fairly stable. Prices would set themselves at a level that would be high enough for the majority of producers, so ...
  • Give us a break...
    I see that Oil & gas UK has been talking again about the need for George Osborne to ‘put his money where his mouth is’ (I paraphrase!) and change the fiscal terms operati ...
  • Why it's different this time
    Is this downturn in oil prices going to be different for investors? I think it might. In fact, I think North American energy companies have a good chance of withstanding th ...

» More Opinion & Commentary         » Write for us             RSS RSS

Oil & Gas Training

Mastering 4D Seismic
Ian Jack, London, 06 Nov 2014

Petroleum Geology of West Africa
Duncan Macgregor, London, 12 Nov 2014

Introduction to Contingency Planning: The value to oil and gas companies in high-risk areas
Mark Theobald, London, 18 Nov 2014

All Upcoming Training


Opinions & Commentary

Oil price, Schlumberger, Petrofac, Lamprell, Pantheon, Aminex and finally...

by Malcolm Graham-Wood

Read More »