本文選題：壓降 + 儲層壓力��； 參考：《西南石油大學學報(自然科學版)》2017年06期

【摘要】：為了進一步完善解吸瓦斯煤體變形機理,探討壓降和儲層壓力對煤解吸瓦斯的影響,采用原煤試件,進行了不同儲層壓力和壓降的煤解吸瓦斯變形實驗。實驗結果表明,解吸達到平衡所需時間與儲層壓力及壓降呈正相關關系;降壓0.3 MPa時,收縮應變隨儲層壓力的增加而減小;降壓至大氣壓時,收縮應變隨儲層壓力的增大而增大,儲層壓力0.9 MPa的大于儲層壓力0.6 MPa的大于儲層壓力0.3 MPa的;當儲層壓力相同時,收縮應變隨壓降的增大而增加;當儲層壓力較小時,大壓降儲層瓦斯解吸量大于小壓降儲層瓦斯解吸量。
[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】： 遼寧工程技術大學力學與工程學院;東北煤田地質局107勘探隊;中建一局集團建設發(fā)展有限公司;
【基金】：國家自然科學基金(51304111) 國家重點研發(fā)計劃(2016YFC0600704,2016YFC0801404)
【分類號】：TD712.6

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