In order to prvoide the new clue for the later tapping oil potential of maturing oilfiled, especially for the stratagem adjustment of high water-cut inefficient exploitation reservoir, and prolongate the realm and orientation of tapping oil potential, the waterflooding characteristics and the law of remaining oil distribution were studied.

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In order to prvoide the new clue for the later tapping oil potential of maturing oilfiled, especially for the stratagem adjustment of high water-cut inefficient exploitation reservoir, and prolongate the realm and orientation of tapping oil potential, the waterflooding characteristics and the law of remaining oil distribution were studied.

結(jié)果表明草草无吗www，該塊油層水淹程度僅80%左右，剩余油在平面上分布于區(qū)塊的絕大部分區(qū)域轮奸视频网址，且與構(gòu)造高低無明顯關(guān)系日本三级日本成网人站，縱向上主要集中于層段的上部，尤其是位于該塊西北區(qū)構(gòu)造低部位的北斷層區(qū)潛力單元在线伊人免费观看，是與目前老油田潛力區(qū)主要局限于正向型微構(gòu)造區(qū)所不同的新類型與新領(lǐng)域亚洲三级黄片啊啊啊啊啊啊啊啊啊。

In order to clear heterogeneous reservoirs waterflooding performance, and decreased interlayer and within-layer contradictions, and improved the water flooding recovery, experimental study should be conducted first, This paper based on Pucheng Sasan reservoir sandstone cores to study object. Multi-point pressure measurement of water flooding oil experimental apparatus was established. Through the three-layer water flooding experiment to study injection strategy, interlayer interference and recovery factors. True sandstone micro-model water flooding used newly developed color visual image analysis system researched water-drive types, forms of residual oil and waterflood efficiency. Percolation mathematical model was established, black oil simulation program was developed, long-core displacement experimental results were matched, pressure and saturation change were researched by the simulation matching results.

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Coreflooding experiments indicate that the stratal microflora can improve oil recovery by 9.14% after waterflooding.

室內(nèi)巖心模擬試驗(yàn)表明又大又粗又长的黄色视频，在水驅(qū)基礎(chǔ)上內(nèi)源微生物驅(qū)可以提高采收率最高達(dá)9.14%。

Based on the history match of waterflooding and petroleum sulphonate flooding in Wen31 block, the results of PS flooding are predicted and evaluated.

在文 3 1塊水驅(qū)和石油磺酸鹽劑驅(qū)歷史擬合的基礎(chǔ)之上巨乳操逼视频播，對(duì)石油磺酸鹽劑驅(qū)的效果進(jìn)行了預(yù)測(cè)和評(píng)價(jià)免费播放AV网站。

At the super-low permeable reservior sandstone of Fu and Yang in Daqing Oilfield, many pore throats exist a lot in the types of compacted and restored flakes and curved lamellas while the pore volume of micropore and the thin, compacted and shrunken throat that contribute little to flow take large scale in the total pore space. Thereof high filtrational resistance is caused by much trouble including high content of reservoir shale, serious sensibility to pressure at waterflooding, remarkable effects of undersaturation and water blocks in micropore. A method with laboratory experiment, theoretical confirmation and field application included was adopted to analyze the non-linear flow characteristics, to reveal the deep mechanism of pinhole enveloping macropore and to provide a new technology of improving the development effect. The outcomes aquired are as follows: Multiple cores with different low and super-low permeability were selected to perform seepage experiments by gas, water and oil. Three fields of flow were observed in the reservoir at different low and super-low core permeability. They are pseudo- elastic flow, transition flow and plastic creep flow. So the concept that there was no correlation of rocky absolute permeability with fluid properties that pasted itself was broken up. Two-phase seepage of water displacing oil in uniform super-low permeability shows that the two-phase seepage zone is narrow.

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