The deep water province of Trinidad and Tobago is the next producing frontier for this country. The area is of interest to a number of major oil and gas companies which have expressed interest in seven of the exploration blocks in the deep water province. An extensive seismic survey was conducted over the area in 2014 and exploration wells are planned for 2016/17. These wells will have to prove up a minimum quantity of resources for the exploration venture to be commercially viable. This paper is an investigation of the minimum resource required to support the development of a gas field in the deep water province of Trinidad and Tobago.

In the absence of published data on the deep water province, analogue data is used to estimate a minimum resource size for commercial exploration by investigating a number of scenarios, which represent the discovery of a total gas- in- place volume of 2 and 3 TCF, with a variety of reservoir sizes and condensate to gas ratios (CGRs), which are typical of those in the existing gas fields of Trinidad and Tobago.

Each reservoir case in the estimated range is used to investigate its own applicable optimum development strategy for taking the gas to market as liquefied natural gas (LNG), compressed natural gas (CNG), gas to solid petrochemicals (GTS), gas to liquids (GTL) and gas to wire (GTW). The paper establishes the total size of the accumulation and the associated reservoir sizes which could lead to commercial exploration in each case.

As exploration moves from the continental shelf into deep water in Trinidad and Tobago, one of the components geologists and geophysicists have specified is required for success in the search for gas reserves is finding larger trapping mechanisms. This paper seeks to estimate some limiting bounds for the designation of a successful find.

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