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• W4251504318 abstract "Gas Injection In The Safah Field, Oman Hsiu-Kuo Chen Hsiu-Kuo Chen Occidental of Oman Search for other works by this author on: This Site Google Scholar Paper presented at the Middle East Oil Show, Bahrain, March 1995. Paper Number: SPE-29805-MS https://doi.org/10.2118/29805-MS Published: March 11 1995 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Get Permissions Search Site Citation Chen, Hsiu-Kuo. Gas Injection In The Safah Field, Oman. Paper presented at the Middle East Oil Show, Bahrain, March 1995. doi: https://doi.org/10.2118/29805-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Middle East Oil and Gas Show and Conference Search Advanced Search AbstractThe Safah field contains 640 million barrels of oil-in-place and 62 billion cubic feet of gas cap. The field is divided into East and West lobes. The East lobe is subdivided into Northeast and Southeast lobes based on PVT properties. The Northeast lobe contains saturated oil with gas cap and the Southeast lobe has undersaturated oil. To arrest reservoir pressure decline and to improve oil recovery, two associated gas injection projects are currently underway in the East lobe. There is a gas cap injection in the Northeast lobe and a down-dip pattern gas injection in the Southeast lobe. Results to date are very encouraging with gas injection contributing about 13 % of field oil production in September 1994. For that month, the field oil production was 34,200 B/D. Total incremental oil through September 1994 is 4.38 million barrels. Comparison of the incremental oil between the gas cap and the oil leg injection indicates that (1) the response is faster for gas injection into the oil leg, and (2) the benefit of gas injection in the oil leg of the Southeast lobe is greater than that of the gas injection into the gas cap in the Northeast lobe.IntroductionThe Safah field is located 415 kilometers west of Muscat in the Sultanate of Oman (Fig. 1) The field produces 42 degrees API oil from a lime mudstone of the Upper Shuaiba Formation, Lower Cretaceous age. The average rock permeability is about 5 millidarcies and the average porosity is 22%. The concession holders are Occidental (operator) and Neste Oy (the Finnish national oil company).The field production started in February 1984. Due to a weak aquifer influx, the reservoir pressure decreased from the initial pressure of 3100 psia to reservoir pressure ranging from 2865 to 2965 psia by the end of 1988. To arrest reservoir pressure decline and to improve the oil recovery, the Northeast lobe gas injection was started in early 1989 by converting Safah 39 (Fig. 2), a high GOR producer under the gas cap, to an injector and by installing a temporary gas compressor with a maximum injection capacity of 7 MMSCFPD. Later, another high GOR producer under the gas cap, Safah 24, was converted to gas injection in 1989. The portable compressor was replaced by five permanent gas injection compressors and a full scale gas injection project was started in May 1990. The injection capacity has been increased by adding two reciprocating compressors in July 1991. The gas injection capacity was further increased by installing a 50 MMCFPD centrifugal compressor in December 1993.Based on the results of the sector simulation study conducted in early 1990, the Southeast lobe pattern gas injection was started by converting Safah-68 in September 1990.P. 335 Keywords: replacement, injection, southeast lobe, safah field, producer, compressor, occidental, gas injection method, lobe, gas injection project Subjects: Improved and Enhanced Recovery, Gas-injection methods This content is only available via PDF. 1995. Society of Petroleum Engineers You can access this article if you purchase or spend a download." @default.
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• W4251504318 title "Gas Injection In The Safah Field, Oman " @default.
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