Showing papers on "Oil in place published in 1981"
TL;DR: In this article, the highlights of current oil-recovery technology, including primary, secondary, tertiary, and enhanced recovery processes, are discussed from a macro-view, such as injection-and production-well patterns, impermeable barriers, and geologic faults.
Abstract: This paper describes the highlights of current oil-recovery technology, including primary, secondary, tertiary, and enhanced recovery processes. Fundamental displacement phenomena are discussed: (1) from a macro-view, such as injection- and production-well patterns, impermeable barriers, and geologic faults; and (2) from a micro-view, which considers oil displacement on a pore-by-pore basis in a three-dimensional interconnected network of flow channels. Applications used to illustrate displacement fundamentals included the major features of water, polymer, and micellar flooding; and steam and CO 2 injection. Also discussed are two principal frontiers of enhanced oil recovery research: definition of the reservoir, and independent measurement of the amount of oil in place.
10 citations
01 Jan 1981
TL;DR: The Meren Field is located in the offshore waters of Nigeria and contains 1.3 billion barrels of original oil in place and may be classified as a major oil accumulation as discussed by the authors.
Abstract: The Meren Field is located in the offshore waters of Nigeria. The field contains 1.3 billion barrels of original oil in place and may be classed as a major oil accumulation. The more landward lying fault-blocks within the field contain an increasing greater preponderance of oil reserves to gas reserves. This study has indicated the possibility of using a combination of well log interpretation with laboratory analyses of sidewall cores to aid in the determination of the areal variation of porosity and permeability within a particular reservoir. 7 refs.
7 citations
01 Jan 1981
TL;DR: In this paper, the observed and theoretical behavior of waterflood performance in heavy oil reservoirs in the Lloydminster area of Western Canada is compared and it is shown that floods are behaving as well as, if not better, than expected.
Abstract: The paper compares observed and theoretical behavior of waterflood performance in heavy oil reservoirs in the Lloydminster area of Western Canada. Lack of reliable primary production history makes determination of primary recovery difficult and consequently additional oil recovery by waterflood uncertain to quantify. Comparison of predicted and actual performance indicates the floods are behaving as well as, if not better, than expected. Extra oil recovery by waterflood is not expected to add to the primary recovery of 3-8% by more than 1-2% of original oil in place. 13 refs.
2 citations
Journal Article•
TL;DR: A spate of tests are underway on a wide variety of alternative fuels and processes to generate steam as discussed by the authors, and some of these alternatives also may loosen environmental constraints which have reined expansions of steamflood work.
Abstract: Advances in steam injection methods are leading US industry's push for bigger production breakthroughs in heavy oil recovery. Production increases spurred by decontrol of heavy oil 2 yr ago have been accompanied by progress in steam recovery technology. US heavy oil producers, until recently content with 40 to 55% recovery of oil in place through steaming, now are aiming at 70% or more, mainly through the addition of foam diverting agents and inert gases. Industry stands poised to shatter the long standing barrier of producing heavy oil from pays below 2000 ft. That might be accomplished soon in a commercial project by offsetting heat losses in deep zones with improved insulated tubing and use of new steam generators which can fit inside a well bore. A spate of tests is underway on a wide variety of alternative fuels and processes to generate steam. Some of these alternatives also may loosen environmental constraints which have reined expansions of steamflood work.
1 citations
TL;DR: An expansion of a low volume gas injection project in the R-1 Sand, Segment G in the Lake Barre Field, Louisiana, was investigated in this article, where computer modeling shows that over five million barrels of oil can be produced.
Abstract: An expansion of a low volume gas injection project in the R-1 Sand, Segment G in the Lake Barre Field, Louisiana, was investigated. Computer modeling shows that over five million barrels of oil can be produced. An evaluation of the future enhanced oil recovery alternatives of the reservoir was performed. Nitrogen injection was determined to be the only feasible method of tertiary recovery. Although reservoir pressure is too low to achieve miscibility between injected nitrogen and oil in place during the entire project life, future recovery due to pressure maintenance alone will be 5,300,000 barrels of oil. 8 refs.
1 citations