The Current Situation and Prospects of Development of Low Permeability Oil Reservoir

Internationally the research of low permeability oil reservoir is a difficult point in the exploration and development of oil and gas field. This thesis, based on the research methods of low permeability reservoirs at home and abroad, summaries several major problems encountered in the process of low permeability oil exploration and development under the current technical conditions as well as the corresponding, but more effective technical measures that need to be constantly improved. And that exploration and development of low permeability of the reservoir will be the main battle field for some time in the future of oil exploration and development.

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THE DEVELOPMENT OF THE TIRRAWARRA OIL AND GAS FIELD

The APPEA Journal ◽

10.1071/aj83024 ◽

1984 ◽

Vol 24 (1) ◽

pp. 278

Author(s):

H. T. Pecanek ◽

I. M. Paton

Keyword(s):

Carbon Dioxide ◽

Oil And Gas ◽

Gas Injection ◽

Oil Field ◽

Oil Reservoir ◽

Gas Reservoirs ◽

Gas Field ◽

Associated Gas ◽

Oil And Gas Field ◽

Cooper Basin

The Tirrawarra Oil and Gas Field, discovered in 1970 in the South Australian portion of the Cooper Basin, is the largest onshore Permian oil field in Australia. Development began in 1981 as part of the $1400 million Cooper Basin Liquids ProjectThe field is contained within a broad anticline bisected by a north-south sealing normal fault. This fault divides the Tirrawarra oil reservoir into the Western and Main oil fields. Thirty-four wells have been drilled, intersecting ten Patchawarra Formation sandstone gas reservoirs and the Tirrawarra Sandstone oil reservoir. Development drilling discovered three further sandstone gas reservoirs in the Toolachee Formation.The development plan was based on a seven-spot pattern to allow for enhanced oil recovery by miscible gas drive. The target rates were 5400 barrels of oil (860 kilolitres) per day with 13 million ft3 (0.37 million m3) per day of associated gas and 70 million ft3 (2 million m') per day of wet, non-associated gas. Evaluation of early production tests showed rapid decline. The 100 ft (30 m) thick, low-permeability Tirrawarra oil reservoir was interpreted as an ideal reservoir for fracture treatment and as a result all oil wells have been successfully stimulated, with significant improvement in well production rates.The oil is highly volatile but miscibility with carbon dioxide has been proven possible by laboratory tests, even though the reservoir temperature is 285°F (140°C). Pilot gas injection will assess the feasibility of a larger-scale field-wide pressure maintenance scheme using miscible gas. Riot gas injection wells will use Tirrawarra Field Patchawarra Formation separator gas to defer higher infrastructure costs associated with the alternative option of piping carbon dioxide from Moomba, the nearest source.

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Main Controlled Elements for Accumulation of Ultro-Low Permeability Sandstone Oil Reservoir, Zhenjing Oilfield, Ordas Basin

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.868.70 ◽

2013 ◽

Vol 868 ◽

pp. 70-73

Author(s):

Yi Wei Hao ◽

Hai Yan Hu

Keyword(s):

Oil And Gas ◽

Sedimentary Basin ◽

Ordos Basin ◽

Low Permeability ◽

Oil Reservoir ◽

Tight Sandstone ◽

Buoyant Force ◽

Accumulation Mechanism ◽

Oil And Gas Resources ◽

Low Permeability Reservoirs

Ordos Basin is the second largest sedimentary basin in China with very rich oil and gas resources. The exploration targets are typical reservoirs of low permeability. To determine the accumulation mechanism of tight sandstone reservoir, thin section, SEM, numerical calculation were used. The result showed that sandstone should be ultro-low permeability reservoirs with the high content feldspar and lithic arkose or feldspathic litharenite. The reservoir became tight while oil filling, buoyant force is too small to overcome the resistance of capillary force. Therefore, overpressure induced by source rock generation is the accumulation drive force.

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Mechanism and Application Effect of Compound Perforation Fracturing Technology in Low Permeability Reservoir

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.675-677.1500 ◽

2014 ◽

Vol 675-677 ◽

pp. 1500-1504

Author(s):

Zeng Li Xiao ◽

Yong Jie Fan ◽

Jun Bin Chen

Keyword(s):

Oil And Gas ◽

Influence Factor ◽

Physical Property ◽

Low Permeability ◽

Gas Field ◽

Low Permeability Reservoir ◽

Fracture Pressure ◽

Compaction Band ◽

Oil And Gas Field ◽

The Cost

Compound perforation fracturing technology is a space combination type ultra-deep perforating that can overcome some flaws conventional perforation has, such as shallow penetration and compaction damage. It can remove the compaction band and near wellbore pollution in rock matrix which results from conventional perforation. This paper introduces the theory of effect and influence factor of compound perforation fracturing technology and summarize the advantages for low permeability gas well on the basis of analyzing the mechanism of action about increase production of compound perforation. In order to evaluate the effects of application of this technology in in low permeability reservoir, 11 compound perforation wells and 12 conventional perforation wells were selected which have the similar physical property and the evaluation was conducted in two blocks. The results show that compound perforation can make the formation fracture pressure decrease in 3~5MPa and increase the permeability near the perforation channel. This technology has better effects than the conventional and decrease the cost effectively, improving production in low permeability oil and gas field.

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Gray Fuzzy Cluster Method and its Application in Development Scheme of Fault Block Reservoirs

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.58-60.147 ◽

2011 ◽

Vol 58-60 ◽

pp. 147-152

Author(s):

Yu Fu ◽

Bo Lu ◽

Min Lu ◽

Xing Chao Zhang

Keyword(s):

Cluster Analysis ◽

Oil And Gas ◽

Fuzzy Cluster ◽

Cluster Method ◽

Oil Reservoir ◽

Fuzzy Cluster Analysis ◽

Gas Field ◽

Fault Block ◽

Oil And Gas Field ◽

Fuzzy Cluster Method

Fault-block oil and Gas Field is one of special complicated reservoirs. For its development, No matter at home or aboard, the instances are not too many, and most of them are terrestrial oil reservoir. For ocean fault-block oil reservoirs, there are no instances that can be consulted. This paper aims at some ocean fault block oil reservoir .Gray relation model and fuzzy cluster analysis are combined to set gray fuzzy cluster analysis .Through a case analysis ,gray fuzzy cluster method is used to clustering of reservoirs. with the experiences that has been obtained, so that the foundation are provided for the development of some ocean fault block oil reservoir.

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Contributions to economic geology, 1912, Part II, Mineral fuels--The Douglas oil and gas field, Converse County, Wyoming

10.3133/b541c ◽

1914 ◽

Keyword(s):

Economic Geology ◽

Oil And Gas ◽

Gas Field ◽

Oil And Gas Field

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ASSESSMENT OF OIL WELL PRODUCTIVITY IN LOW-PERMEABILITY RESERVOIRS IN THE FIELDS OF EASTERN SIBERIA

Oil and Gas Studies ◽

10.31660/0445-0108-2017-3-30-36 ◽

2017 ◽

pp. 30-36

Author(s):

R. V. Urvantsev ◽

S. E. Cheban

Keyword(s):

Oil Recovery ◽

Large Scale ◽

Oil And Gas ◽

Oil Extraction ◽

Low Permeability ◽

Oil Well ◽

Eastern Siberia ◽

Development Costs ◽

Traditional Fields ◽

Low Permeability Reservoirs

The 21st century witnessed the development of the oil extraction industry in Russia due to the intensifica- tion of its production at the existing traditional fields of Western Siberia, the Volga region and other oil-extracting regions, and due discovering new oil and gas provinces. At that time the path to the development of fields in Eastern Siberia was already paved. The large-scale discoveries of a number of fields made here in the 70s-80s of the 20th century are only being developed now. The process of development itself is rather slow in view of a number of reasons. Create a problem of high cost value of oil extraction in the region. One of the major tasks is obtaining the maximum oil recovery factor while reducing the development costs. The carbonate layer lying within the Katangsky suite is low-permeability, and its inventories are categorised as hard to recover. Now, the object is at a stage of trial development,which foregrounds researches on selecting the effective methods of oil extraction.

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