NATURAL GAS HYDRATES cont..It is highly inflammable and are called "Fiery ice" orIce that burns PRODUCTIO !"T#OD$There are three mainly used %roduction methods are&' D"PRU$$URI()TIO'*' T#"R!)+ $TI!U+)TIO,' C#"!IC)+ I#I-ITIOPRODUCTIO!"T#OD$ Cotd''&' D"PRU$$URI()TIO'. Its ob.ecti/e is to lo0er the %ressure in the free1gas 2one immediately beneath the hydrate stability 2one3 causing the hydrate at the base of the hydrate stability 2one to decom%ose and the freed gas to mo/e to0ard a 0ellbore'' PRODUCTIO!"T#OD$ Cotd''*' T#"R!)+ $TI!U+)TIO' 0hich a source of heat %ro/ided directly in the form of in.ected steam or hot 0ater or another heated li4uid3 or indirectly /ia electric or sonic means'Itis a%%lied to the hydrate stability 2one to raise its tem%erature3 causing the hydrate to decom%ose'The direct a%%roach could be accom%lished in either of t0o modes5 a frontals0ee% similar to the steam floods that are routinely used to %roduce hea/y oil3 or by %um%ing hot li4uidthrough a /ertical fracture bet0een an in.ection 0ell and a %roduction 0ell'PRODUCTIO!"T#OD$ Cotd'',' C#"!IC)+ I#I-ITIO'It is similar in conce%t to the chemical means %resently used to inhibit the formation of 0ater ice' This method see6s to dis%lace the natural gas hydrate e4uilibrium condition beyond the hydrate stability 2one7s thermodynamic conditions through in.ection of a li4uid inhibitor chemical ad.acent to the hydrate'PRODUCTIO!"T#OD$ Cotd'' Fig:3 Schematic of propose gas h!rate pro"ction methos: #a$ therma% in&ection #'$ epress"ri(ation) an #c$ inhi'itor or other aiti*e.TR)$PORT)TIOThere are at least three 0ays to trans%ort the gas ashore8 by con/entional %i%eline8 by con/erting the gas hydrates to li4uid middle distillates /ia the ne0ly1im%ro/ed Fischer+Tropsch %rocess and loading it onto a con/entional tan6er or barge8 or by recon/erting the gas into solid hydrate and shi%%ing it ashore in a close1to1con/entional shi% or barge$)F"T9 :";IRO!"T)+ COC"R$ormal drilling can generate enough do0nhole heat to decom%ose surrounding hydrates3 %ossibly resulting in loss of the 0ell'*'Imaging of sub/olcanic !eso2oics using tra/eltime in/ersion of 0ide1angle seismic data in the $aurastra %eninsula of India3 Geoph!sica% 1o"rna% 2nternationa%) 345)?lobal Resource Potential of ?as #ydrate @)e0 Calculation By Arthur H. Johnson (Hydrate Energy International) 3/ol &&3issue *3methane hydrate ne0s letter 'The nd South Asain !eos"ien"e Con#eren"e and E$hi%ition,!E&India'((, ()(*th Jan,'((,!earter +oida,+e, -elhi,India 3)sit Aumar $amadder3 Petro%hysist3 O?C 3 !umbai3India "=%loration of ?as #ydrate and the %resent global scenario'?as #ydrates Resource Potential of $outh )sia3 Published by$))RC "nergy CentrePlot o' &B3 $treet o' C3 $ector 1 #DE&Islamabad3 Pa6istan 3!r 'm '.amaluddin3 !r 'malcolm /' lall')lternati/e energy sources5 !ethane hydrates @ in from the cold -y !ichael Richardson For the $traits Times3 &* )%ril *>&>'