CAJ | 학술논문

据岩心观察和测井、录井、钻井资料分析，结合测井相、骨架剖面微相，对亚格列木组的沉积微相平面展布及沉积相演化模式进行研究，认为雅克拉凝析气田目的层亚格列木组分为上段和下段两个沉积阶段，下段到上段沉积时期，发育水进背景下的水进型扇三角洲到退积型辫状河三角洲沉积体系，其中水进型扇三角洲主要发育辫状水道和扇中水道间微相；退积型辫状河三角洲包括辫状河三角洲平原和前缘2个亚相，发育的沉积微相有辫状分流河道、泛滥平原、水下分流河道、分流河道间及河口坝。研究区辫状分流河道、水下分流河道及辫状水道等优势沉积微相砂体较发育，砂体厚度较大，为物性较好的储集相带，是勘探开发的有利目标。
거암심관찰화측정、록정、찬정자료분석，결합측정상、골가부면미상，대아격렬목조적침적미상평면전포급침적상연화모식진행연구，인위아극랍응석기전목적층아격렬목조분위상단화하단량개침적계단，하단도상단침적시기，발육수진배경하적수진형선삼각주도퇴적형변상하삼각주침적체계，기중수진형선삼각주주요발육변상수도화선중수도간미상；퇴적형변상하삼각주포괄변상하삼각주평원화전연2개아상，발육적침적미상유변상분류하도、범람평원、수하분류하도、분류하도간급하구패。연구구변상분류하도、수하분류하도급변상수도등우세침적미상사체교발육，사체후도교대，위물성교호적저집상대，시감탐개발적유리목표。
Based on the core observation and the analysis of logging,geological logging and drilling data,also com-bined with the analysis of electrofacies and sedimentary microfacies of crosswell profile,the distribution of sedimentary microfacies and sedimentary facies evolution model of the Yageliemu Formation of the Yakela condensate gas field were studied. Meanwhile,the preliminary summary of the regional sedimentation model which contains the research area was carried out in this paper. The research results show that the main sedimentary facies types from the lower to the upper segment of Yageliemu Formation are transgressive alluvial fan and retrogradational braided delta facies,which form in the background of continuous water inflow in the study area. The primary sedimentary microfacies in transgressive allu-vial fan are braided stream and inter channel of middle fan while the retrogradational braided delta facies composed of braided delta plain,braided delta front,and many microfacies such as braided distributary channel,flood plain,underwa-ter distributary channel,inter distributary bay deposit and river mouth bar. The river channel sandbody of the dominant sedimentary microfacies in the study area are braided distributary channel,underwater distributary channel and braided stream,which have the higher thickness and the better reservoir protential that could be the favorable exploration and de-velopment goals.