Energy Reporter
Energy consultants Anthony Ramlackhansingh and Dr Krishna Persad expect there will be more discoveries in the shallow waters off Trinidad, but said this will not change the narrative that the large pools of natural gas have already been discovered.
Their statements follow Monday's announcement by the country's largest natural gas producer bpTT that it had discovered an additional one trillion cubic feet (tcf) of gas in its Savonette gas field, doubling the estimated gas in place to 2tcf.
Persad said: "I expect that on the continental shelf we will find a few more surprises like this, in the order of one tcf each, but it does not change the fact that the easy large near-shore fields have already been discovered."
Ramlackhansingh, who is also a lecturer at the University of the West Indies, agreed with Prsad and said he expected there will be some similar discoveries because better technology an improved seismic will assist bpTT and other companies operating on the continental shelf and, therefore, in shallow water to find more reserves.
"This discovery shows that there is some upside potential on the continental shelf. We will probably find another two or three tcf on this particular trend. I think this discovery was made on the northwest, southeast trend associated with major counter regional fault that continues south of the Savonette fault and we should encounter two or three more similar discoveries on this trend," Ramlackhansingh told theBusiness Guardian in an interview on Tuesday.
BPTT made the announcement following the drilling of the Savonette 4 appraisal well, which was spudded into an untested fault block east of the original Savonette field discovery in the Columbus basin approximately 80 kilometres off the southeast coast of Trinidad. The Savonette 4 appraisal well was drilled in water depths of almost 300 feet.
BPTT said the well was drilled to a total depth of 18,678 feet and penetrated hydrocarbon-bearing reservoirs in two intervals with discovered gas in place exceeding initial estimates.
The Savonette field was discovered in 2004 by the Chachalaca exploration well and began production in 2009 through a normally unmanned platform. The company said based on the success of the Savonette 4 well it is is proposing to drill a further two development wells into the Savonette reservoirs.
The gas discovered began production in October 2012, with the Savonette 4 well currently flowing at approximately 225 million standard cubic feet of gas a day (mmscf/d), ramping up to 250mmscf/d. If successful, the two additional development wells are also expected to be brought into production over the next year to eighteen months.
BPTT has a 100 per cent working interest in Savonette 4.
BPTT made the announcement during a meeting in London between Minister of Energy and Energy Affairs, Kevin Ramnarine; T&T's High Commissioner to London, Garvin Nicholas; and BP representatives including Bob Fryar, executive Vice-president – production; Bernard Looney, executive vice-president – developments; and Norman Christie, president, bpTT.
"This is exciting news for both bpTT and the industry since this represents the largest discovery for bpTT since 2005," said Norman Christie.
Christie said: "The significant investment in the Savonette 4 well and the potential further investment in two additional development wells, combined with the investment in the ocean bottom cable seismic acquisition, is testament to bpTT's ongoing commitment to the development of our T&T operations and the wider industry. This discovery demonstrates that with the right technology we can continue to uncover the full potential of the Columbus Basin."
Persad said the discovery will also not deal with the challenges that are being faced by the downstream industry which is facing a shortage of gas. He said the bpTT discovery will add to the reserves position but it will do little in dealing with the delivery of gas which has been curtailed due to companies led by bpTT doing maintenance work and as a result not being able to deliver enough gas to the downstream industry.
