本文選題：壓降 + 儲(chǔ)層壓力��； 參考：《西南石油大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年06期

【摘要】：為了進(jìn)一步完善解吸瓦斯煤體變形機(jī)理,探討壓降和儲(chǔ)層壓力對(duì)煤解吸瓦斯的影響,采用原煤試件,進(jìn)行了不同儲(chǔ)層壓力和壓降的煤解吸瓦斯變形實(shí)驗(yàn)。實(shí)驗(yàn)結(jié)果表明,解吸達(dá)到平衡所需時(shí)間與儲(chǔ)層壓力及壓降呈正相關(guān)關(guān)系;降壓0.3 MPa時(shí),收縮應(yīng)變隨儲(chǔ)層壓力的增加而減小;降壓至大氣壓時(shí),收縮應(yīng)變隨儲(chǔ)層壓力的增大而增大,儲(chǔ)層壓力0.9 MPa的大于儲(chǔ)層壓力0.6 MPa的大于儲(chǔ)層壓力0.3 MPa的;當(dāng)儲(chǔ)層壓力相同時(shí),收縮應(yīng)變隨壓降的增大而增加;當(dāng)儲(chǔ)層壓力較小時(shí),大壓降儲(chǔ)層瓦斯解吸量大于小壓降儲(chǔ)層瓦斯解吸量。
[Abstract]:In order to further improve the deformation mechanism of the desorption gas coal body and discuss the influence of pressure drop and reservoir pressure on coal desorption gas, the experiment of coal desorption gas deformation is carried out with different pressure and pressure drop of different reservoir. The experimental results show that the time required for the desorption to reach the balance is positively related to the pressure and pressure drop of the reservoir; the depressurization is 0.3 MPa. While the contraction strain decreases with the increase of reservoir pressure, the shrinkage strain increases with the increase of reservoir pressure, and the reservoir pressure is 0.9 MPa greater than that of reservoir pressure of 0.6 MPa greater than that of reservoir pressure 0.3 MPa; when the reservoir pressure is simultaneously, the shrinkage strain increases with the increase of pressure drop; when the reservoir pressure is small, the large pressure drop is stored. The level of gas desorption is larger than that of small pressure drop reservoir.
【作者單位】： 遼寧工程技術(shù)大學(xué)力學(xué)與工程學(xué)院;東北煤田地質(zhì)局107勘探隊(duì);中建一局集團(tuán)建設(shè)發(fā)展有限公司;
【基金】：國(guó)家自然科學(xué)基金(51304111) 國(guó)家重點(diǎn)研發(fā)計(jì)劃(2016YFC0600704,2016YFC0801404)
【分類號(hào)】：TD712.6

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