Publisher： Trans Tech Publications
E-ISSN： 1662-7482|2016|830|85-92
ISSN： 1660-9336
Source： Applied Mechanics and Materials, Vol.2016, Iss.830, 2016-04, pp. : 85-92
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Abstract
The exploration of pre-salt introduces challenges beyond those posed by ultra-deep waters and the thick of carbonaceous reservoirs. Among the main difficulties are the high gas-oil ratio and the high content of carbon dioxide (CO2) present in the gas. This paper proposes an alternative to the technology currently used in the exploration of pre-salt, in which the gas is treated on the platform. The proposed alternative is applicable to reservoirs which CO2 concentration in gas is greater than 50%, like Jupiter that contains 79% of CO2. For this scenario is suggested that exploration occurs in three production areas: subsea, offshore and onshore. The proposed technology includes the construction of three subsea pipelines: one for the transportation of untreated gas (that is treated onshore); a second for the return of the recovered hydrate inhibitor (in order to be re-injected into the gas pipe) and the last for the return of the carbon dioxide stream separated from the gas.
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