Publications

In addition to the substantial gas potential currently under appraisal and development, exploration in Indonesian offshore waters has also indicated the existence of a number of gas fields whose modest reserve size and geographical remoteness make their economic feasibility doubtful under present development criteria.The present paper describes a liquefaction and marine transport system specifically designed to improve the chances of commercial exploitation of gas from such smaller, marginal fields - whether they be lean gas or associated gas rich in natural gas liquids.The system which involves the storagi.: and marine transportation of LNG under moderate pressure (3 1/2 to 4 1/2 atmospheres), is particularly suitable for multiple-field applications and examplle cases are shown which indicate that total costs in the range of $1.50 to $2.50 per million BTU may be expected for the entire liquefaction and shipping process including storage and regasification cLf the LNG onshore.As the market value of LNG in tht: Far East is now around $6.00 per million BTU (even before regasification) the economic potential of the system is very attractive.