本文關(guān)鍵詞： 鄂東氣田 保德 水文地質(zhì) 分區(qū) 煤層氣富集區(qū) 控氣作用　出處：《中國(guó)礦業(yè)大學(xué)學(xué)報(bào)》2017年04期 　論文類(lèi)型：期刊論文

【摘要】：為了闡明水動(dòng)力及水化學(xué)對(duì)煤層氣富集的控制作用,對(duì)鄂東保德區(qū)塊的水文地質(zhì)特征進(jìn)行研究.采用水動(dòng)力學(xué)分析、水化學(xué)分析及數(shù)理統(tǒng)計(jì)等方法,優(yōu)選煤層氣富集有利區(qū).通過(guò)大量生產(chǎn)動(dòng)態(tài)監(jiān)測(cè)數(shù)據(jù)及實(shí)驗(yàn)室水化學(xué)測(cè)試數(shù)據(jù)的統(tǒng)計(jì),分析了水動(dòng)力分區(qū)、水化學(xué)場(chǎng)定量表征及水文地質(zhì)控氣作用,建立煤層氣富集區(qū)優(yōu)選的水文評(píng)價(jià)指標(biāo)體系,提出了用形成的水文地質(zhì)分區(qū)方法、水文地質(zhì)控氣作用機(jī)理及選區(qū)方法開(kāi)展富集區(qū)優(yōu)選.研究結(jié)果表明:水動(dòng)力弱徑流區(qū)-滯流區(qū)、NaHCO_3型、礦化度1 500mg/L、鈉氯系數(shù)1.7、脫硫系數(shù)5的疊合區(qū)域是煤層氣富集的有利區(qū),優(yōu)選出Ⅰ類(lèi)區(qū)及Ⅱ類(lèi)區(qū)2個(gè)煤層氣富集有利區(qū),對(duì)于保德及相似地質(zhì)條件區(qū)塊的后續(xù)的勘探開(kāi)發(fā)具有重要的借鑒意義.
[Abstract]:In order to elucidate the control effect of hydrodynamics and hydrochemistry on the enrichment of coalbed methane, the hydrogeological characteristics of Baode block in East Hubei were studied. Hydrodynamic analysis, hydrochemical analysis and mathematical statistics were used. Based on the statistics of mass production dynamic monitoring data and laboratory hydrochemical test data, the hydrodynamic zoning, hydrochemical field quantitative characterization and hydrogeological gas control are analyzed. A hydrological evaluation index system for the optimal selection of coalbed methane rich areas was established and the hydrogeological zoning method was put forward. The mechanism of hydrogeological gas control and the method of selecting rich areas are selected. The results show that the hydrodynamic weak runoff area-stagnant flow zone is NaHCO-3 type, and the salinity is 1 500 mg / L. The superposition area of sodium-chlorine coefficient 1.7 and desulfurization coefficient 5 is a favorable area for coalbed methane enrichment, and two favorable areas for coal-bed methane enrichment are selected from class 鈪，

本文編號(hào)：1467948