Study of CO sub 2Recovery and Tertiary Oil Production Enhancement in the Los Angeles Basin. Final Report,September 1978.

摘要

Results are presented of stuides conducted to evaluate carbon dioxide sources in the Los Angeles Basin,determine the requirements for upgrading and transmitting the gas,write the necessary material specifications,and determine where carbon dioxde may be effectively utilized as an enhanced recovery agent in oil fields,estimate recovery performance,and evaluate potential economic benefits. Study results show that there are two major sources of CO sub 2in the Los Angeles Basin. Six oil refineries and one ammonia plant (all near Los Angeles Basin oil fields),have hydrogen plants with by-product streams of concentrated CO sub 2 . The total available (uncommitted) CO sub 2from these streams is about 3,000tons per day. Six major electric power plants,all near L.A. Basin oil fields,discharge a combined total of 70,000tons per day of CO sub 2from 27large boilers. Average CO sub 2concentration in the flue gas is about 14percent on a dry basis. CO sub 2processing recommendations include modification of the existing hydrogen-CO sub 2separation system,so that nitrogen is not used for stripping and therefore does not need to be removed,use propylene carbonate absorption,and use low-temperature separation. For CO sub 2extraction from flue gas,monoethanolamine (MEA) absorption is recommended. Several reservoirs have been identified and are listed as prime candidates for CO sub 2injection,using the major criteria of high oil saturation in the reservoir,suitable depth of the reservoir,and a good potential for zone control. (ERA citation 04:029065)