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 Wysłany: Wto 13:49, 23 Lis 2010 Temat postu: ugg boots ireland The Multiple Application Process |
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The Multiple Application Process sour
2.5MPa, down 12.5MPa. (2) increased at Note: The average single well at acidic fluence 19.7m, after acidification at fluence 70.4m., Increasing injection 50.7m.. Ended March 1999 No. 5 process several complex application platform acid is accumulated by injection 27652m.. 6.2.2 Analysis of Typical Well Group (1) W2-54 well is the well block pressure North Wei 2 injection wells, water layer three times for the S, 2765.7 ~ 2851.5m, 23.4m/R3 layer and general water. Injection pressure before acidification 35MPa, no water injection. June 1998 ranked by negative pressure acid column, 35m acid system multi composite construction, including pre-acid 5m, lead acid 1Om, the main acid 1Om, post-acid 1Om .. Construction of pressure from 26MPa,[link widoczny dla zalogowanych], dropped to 21MPa, and maintain pressure 20MPa. The effect of injection wells: a. Reduce water pressure and threshold pressure: 35MPa injection pressure dropped to the former by the acidification acidification 20.5MPa, down 14.5MPa. Start pressure from 34MPa, dropped to 20MPa. Down 14MPa. The current water pressure is still maintained at about 25MPa. b. Day Note increased: the day before acidification fluence 3m., Acidification of the early days fluence 81m., Increasing injection 78m, the current water capacity at 60m.. Ended March 1999 the cumulative increase in water 12222m.. (2) Wl017 well the well is a low-permeability reservoir pressure health l0 block injection wells, water injection layer S three times'., 2765.7 ~ 2851.5m, 23.4m/l3 layer, generally acidic water before the water injection pressure 36MPa, water injection is not l2 months of 1998 combined with 50m multi acid system construction, including pre-acid IOm., Pre-acid lOm,[link widoczny dla zalogowanych], the main acid 20m, post-acid lOm. Construction of pressure from 32MPa, dropped to 18MPa, wells to maintain pressure 19MPa. The effect of injection wells:, a. Reduce water pressure and threshold pressure: 36MPa injection pressure dropped to the former by the acidification acidification 20MPa, down 16MPa. Start pressure from 35MPa, dropped to 12MPa, down l4MPa. b. Day Note increased: the day before acidification fluence lm., After acidification at fluence 1OOm, increasing injection lOOm, ended in March 1999 the cumulative increase in injection 8900m. c ・ improve the injection profile: acidification before the water layer is 6.3m / 3 layer,[link widoczny dla zalogowanych], high water level 1.7m / 1 layer, the water intensity of 69.5, acidified water layer 36.6m/15 layer, start a new layer of 30 .3m/12 layer, absorbent layer of strong intensity reduced to the original 1.0,[link widoczny dla zalogowanych], much improved injection profile. 7 Economic Analysis since 1998 by multiple complex acid process technology construction of 7 wells, a significant effect of increasing injection to create a better economic efficiency. (1) input costs: Drug costs were input, the construction cost 221,000 yuan. Tools fee 2. o million, total 241,000 yuan; (2) Output: (in order to increase injection 40m. It oil off the water) by Note: 27652m. × 700 元 / 40m |. 483,900 yuan; (3) input-output ratio: phase input-output ratio = 241,000 yuan: 483,900 yuan al: 2.0. 8 Conclusion and understanding 1. Acid of multiple composite technology applications in low permeability sandstone reservoir pressure and increase after the injection effect is remarkable. 2. Pai Pai acid acid column vacuum thoroughly and effectively prevent the precipitation of secondary pollution. 3 The Multiple Process Technologies acid in low permeability sandstone reservoir pressure and increase injection provides an effective way to work, can be similar to the Acropolis and the application of oil. References [1] Zhang Shaohuai, Luo Ya, et al. Reservoir protection technology [M Beijing: Petroleum Industry Press, 1998:342 ~ 345. [2] MichaelJ , Eeonomides, KnnethG, Nohe. Oil dipped in increasing technology [M Shandong Dong Lei ZHANG Hong-da,[link widoczny dla zalogowanych], etc. Translation: Petroleum University Press, 1991:302 ~ 3o5. [3J I amount of bacteria. Oilfield Chemistry [M] Camp Stone Mountain Momo sleeves University Press Mu, 1996: u5 ~ 117 [41 Wang Hongxun. Zhang Qi, and other oil recovery process principle EM]. Petroleum Industry Press, Beijing Mu. 1989:298 ~ 299. Es] WilliamsBB, GidteyJL, SchechterRs. Principles of oil well acidification [Mj Luo Jingqi translated Beijing: Petroleum Industry Press Mu, 1984: l89 ~ 192. (Animal husbandry, they enjoy the set issued on the date 1999-11-14 date 199903-28 edit Yang Zhuo)
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