【摘要】：我國(guó)具有豐富煤層氣藏資源，居世界第三位，其大部分布于300—1500m的埋深處，具有很的廣闊開(kāi)采前景和資源價(jià)值。在新疆準(zhǔn)南煤田阜康礦區(qū)一帶通過(guò)鉆井資料和瓦斯樣品分析知該區(qū)煤層厚大，其煤質(zhì)主要為氣煤和焦煤、煤層氣的富集程度較好和資源量豐富，開(kāi)采區(qū)。通過(guò)前期現(xiàn)場(chǎng)的工作和資料文獻(xiàn)的查閱，表明該研究區(qū)內(nèi)煤儲(chǔ)層的構(gòu)造條件和滲透性較好，是煤層氣理想的儲(chǔ)存和運(yùn)移環(huán)境，綜合上訴條件，該研究區(qū)是理想的煤層氣開(kāi)采區(qū)。 采集的研究樣品全部來(lái)自阜康礦區(qū)一帶,樣本通過(guò)工業(yè)分析、孔隙度測(cè)定和等溫壓力的測(cè)定的實(shí)驗(yàn)，得到了相應(yīng)的數(shù)據(jù)，為研究煤層氣的滲流性提供了理論基礎(chǔ)。 通過(guò)查閱國(guó)內(nèi)外文獻(xiàn)和現(xiàn)場(chǎng)的采樣,通過(guò)在實(shí)驗(yàn)室中分析，使自己對(duì)煤層氣的各個(gè)滲流階段的機(jī)理更加的了解,通過(guò)多次反復(fù)計(jì)算，概括出了煤層氣滲流性的數(shù)學(xué)模型,其研究過(guò)程主要有以下三個(gè)方面： （1）在煤巖中煤層氣主要以吸附態(tài)、游離態(tài)兩種形式儲(chǔ)集。煤層氣從煤巖基質(zhì)孔隙中開(kāi)采出來(lái)主要經(jīng)歷了三個(gè)過(guò)程，即解吸、擴(kuò)散和滲流。 （2）通過(guò)簡(jiǎn)化的物理模型，建立了數(shù)學(xué)模型。 （3）對(duì)阜康礦井煤層氣進(jìn)行數(shù)值模擬以后,在根據(jù)計(jì)算機(jī)編程，，進(jìn)行資源的一些評(píng)價(jià)。
[Abstract]:China is rich in coalbed methane resources, ranking the third in the world, most of which are distributed in the depth of 300-1500 m, which has a very broad mining prospect and resource value. Through the analysis of drilling data and gas samples in Fukang mining area of Zhongnan coalfield in Xinjiang, it is found that the coal seam in this area is thick, the coal quality is mainly gas coal and coking coal, the enrichment degree of coalbed methane is good and the resources are abundant, and the mining area is well developed. It is shown that the structural conditions and permeability of the coal reservoir in the study area are good, which is the ideal environment for the storage and migration of coal bed methane, and the comprehensive appeal condition. The study area is an ideal mining area for coal bed methane. The collected samples are all from the area of Fukang mining area. Through the experiments of industrial analysis, porosity measurement and isothermal pressure measurement, the corresponding data are obtained, which provides a theoretical basis for studying the percolation of coalbed methane. By consulting the domestic and foreign literature and sampling on the spot, through analyzing in the laboratory, the mechanism of each percolation stage of coalbed methane is better understood, and the mathematical model of percolation of coalbed methane is summarized through repeated calculation. The main research processes are as follows: (1) the coalbed methane in coal and rock is mainly stored in the form of adsorption state and free state. Coal bed methane (CBM) extraction from the pores of coal matrix has experienced three main processes, namely desorption, diffusion and percolation. (2) through the simplified physical model, the mathematical model is established. (3) after numerical simulation of coalbed methane in Fukang mine, some resources are evaluated according to computer programming.
【學(xué)位授予單位】：新疆大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TD712

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