The rate of success in drilling for oil and gas in the Gulf of Thailand has been increased in a ratio of one to three since 1977. Two commercially explorable gas-condensate fields of total estimated reserves up to 5 Tcf have been found in Union Oil’s concession Block 12 and Texas Pacific’s concession block 15 and block 16. The Union field is located in the southern Pattani trough and the Texas Pacific field is situated in the northern portion of the Malay basin. Several gas and condensate reservoirs have been identified in lower to middle Miocene deltaic sandstones, ranging in depth from 3,300 to 8,800 ft (1,006-2,682 m) in the Texas-Pacific field and from 5,000 to 8,700 ft (1,524-2,652 m) in the Union field.
A 620 km submarine pipeline connecting these fields northward to Sattahip Shore, formed as common carrier for combining gas flow at the daily rate of 500 MMcf, is planned by the Natural Gas Organization of Thailand (NGOT). Initial daily gas production of 150 MMcf from Union field is expected to be on stream by January 1981, to supply electricity for industries and domestic demands in Bangkok and the eastern provinces as a substitute for imported fuel oil.
Pre-Tertiary basins in the relinquished areas of the inner Gulf of Thailand are considered to be future petroleum potential basins.
Figures & Tables
The energy and mineral resources of the vast Pacific basin and its neighboring land areas play a vital role in meeting the ever-growing needs of society worldwide. Building on the foundation of a highly successful conference held in 1978, this volume contains 51 of the 135 papers presented there. Subjects included are general and specific in nature--oil, gas, and coal resources; geothermal fields, uranium; tin; evaporites, trace elements; water resources; magma energy and fuels from magma. Geological and geophysical techniques, and also the new tool of remote sending for petroleum and minerals exploration are represented. Tectonics, structure fundamentals, subsurface hazards, international treaties and the law of the deep sea are discussed. Seventeen countries and regions are represented in these papers: Thailand, Nicaragua, the United States, Japan, Peru, Antarctica, El Salvador, Australia, Mexico, Taiwan, New Zealand, China, Chile, Indonesia, Canada, and the Pacific Ocean.