CAJ | 학술논문

准噶尔盆地腹部滴西地区石炭系火山岩储层中已获重要的工业气流.然而由于成岩环境复杂,岩性多变,火山机构受后期风化剥蚀和构造作用的影响,保存不完整,使得该区火山岩研究难度大,认识程度较低.本文对滴西地区石炭系巴塔玛依内山组火山岩特征进行了研究,分析了该区典型岩性的岩心、岩石薄片及测井响应特征,提出了一套火山岩测井识别的方法.在此基础上,总结了典型岩性组合的地震反射特征,并对岩性的展布情况进行了预测.最后,对火山岩形成的环境进行了探讨.研究结果显示,滴西地区巴塔玛依内山组顶面的火山岩分布具有一定的分段特征,可以分为东部、中部、西部三段:从成分上看,东部以酸性岩为主,西部以基性岩为主,中部则酸性岩、中性岩和基性岩皆较发育;从火山岩产状上看,东部和西部以喷出产状为主,中部则侵入产状和喷出产状皆发育.巴塔玛依内山组火山岩体具有多期次的特点,各火山机构彼此叠置,时间和空间上具有一定的相关性.层状火山机构发育.本文的研究方法对准噶尔盆地内石炭系火山岩研究及火山机构的解剖具有借鉴意义,同时也为该区的油气勘探和开发提供一定的依据.
준갈이분지복부적서지구석탄계화산암저층중이획중요적공업기류.연이유우성암배경복잡,암성다변,화산궤구수후기풍화박식화구조작용적영향,보존불완정,사득해구화산암연구난도대,인식정도교저.본문대적서지구석탄계파탑마의내산조화산암특정진행료연구,분석료해구전형암성적암심、암석박편급측정향응특정,제출료일투화산암측정식별적방법.재차기출상,총결료전형암성조합적지진반사특정,병대암성적전포정황진행료예측.최후,대화산암형성적배경진행료탐토.연구결과현시,적서지구파탑마의내산조정면적화산암분포구유일정적분단특정,가이분위동부、중부、서부삼단:종성분상간,동부이산성암위주,서부이기성암위주,중부칙산성암、중성암화기성암개교발육;종화산암산상상간,동부화서부이분출산상위주,중부칙침입산상화분출산상개발육.파탑마의내산조화산암체구유다기차적특점,각화산궤구피차첩치,시간화공간상구유일정적상관성.층상화산궤구발육.본문적연구방법대준갈이분지내석탄계화산암연구급화산궤구적해부구유차감의의,동시야위해구적유기감탐화개발제공일정적의거.
The important industrial gas has been developed from the Carboniferous volcanic reservoir in Dixi area, Junggar basin. However, it makes the research to the Carboniferous volcanic rocks in this area difficult for its complex diagenesis environment, incomplete preservation due to deuteric weathering and denudation, and diverse lithology. In this paper, the characteristics of Batamayineishan Formation of Carboniferous volcanic rocks in Dixi area were studied in detail. The features of rock cores, thin sections and response of well logging were analyzed. A suit of methods for identifying the lithology were presented. The seismic response characteristics of typical combined rocks were summarized and the distribution of dominant lithology was predicted. The research shows that the distribution of volcanic rocks can be divided into 3 segmentations, the east, the centre and the west, for the top zone of Batamayineishan Formation in the research area. From the viewpoint of lithology, the east segment is mainly acidic volcanic rocks, the west segment is mainly basic volcanic rocks, and the basic, intermediate and acidic volcanic rocks are all well developed in the centre segment. From the viewpoint of occurrence, effusive occurrence dominates the east and west segments, both effusive and intrusive occurrence ere well developed in the centre segment. The characteristics of multi-stage of the volcanic rocks can be found, the volcanic edifices are overlayed one by one and show some relationship for time and space. Stratovolcano edifice is well developed in the research area. The methods used in this paper are available to the anatomy of volcanic rocks and volcanic edifices in other areas of this basin, and they also can be used as some basis for the exploration and development of the oil and gas in this area.