黑龙江省延兴盆地煤炭资源潜力评价

发布时间：2018-01-18 03:22

本文关键词：黑龙江省延兴盆地煤炭资源潜力评价　出处：《吉林大学》2017年硕士论文　论文类型：学位论文

【摘要】：延兴盆地位于鹤岗市萝北县。区域上处于牡丹江断裂东布列亚-佳木斯-兴凯地块,佳木斯隆起带太平沟隆起区。为中生代含煤盆地,盆地基底为下元古界兴东岩群,盆地盖层为中生界白垩系下统城子河组(K1ch)。城子河组按岩性可划分为三个岩性段:底部砾岩段、中部含煤段以及上部泥岩段,属冲积扇-河流沼泽-滨浅湖相沉积体系,煤的聚积区域主要是南北向河流形成的泛滥平原和河流向南进入湖区形成的河流沼泽区域。研究区构造主要受环太平洋构造域体制制约。形成了一系列正断层,其边界断层控制了煤系地层的分布范围,研究区内的断层则对煤层起到了破坏作用。从煤岩鉴定结果看,镜质组平均最大反射率R0max从0.56-0.68%,挥发分Vdaf从37.60-41.84%,收到基低位发热量Qnet,ar从19.94-27.59MJ/kg,粘结指数G(3:3)0-17,以大于5的居多,因此研究区内煤种以长焰煤为主,煤变质程度为低变质程度煤。共发育有6层局部可采煤层,含煤系数1%。含煤区域约为59km2,预测煤炭资源储量(333)16411万吨。本文对研究区煤炭资源进行了综合评价,评价结果表明:研究区交通运输便利,电力、劳动力充足,勘查开发条件优越;煤种为烟煤,属中高热值煤,有毒有害元素少,开采不会对区内环境造成恶劣影响;研究区内煤炭资源投资收益率为60%,投资回收期为1.67年,投资收益率高、回收期短,按目前煤炭价格形势,经济前景良好。
[Abstract]:The Yanxing basin is located in Luobei County, Hegang City. The area is located in the Mudanjiang fault east Blia-Jiamusi Xingkai block and the Taipinggou uplift of Jiamusi uplift belt. It is a Mesozoic coal-bearing basin. The basement of the basin is the Lower Proterozoic Xingdong Group, and the basin cap is the Lower Cretaceous Lower Cretaceous Chengzihe formation, which can be divided into three lithologic segments according to its lithology: the bottom conglomerate. The middle coal bearing section and the upper mudstone section belong to the alluvial fan fluvial marsh shore-shallow lacustrine facies sedimentary system. The coal accumulation area is mainly the flood plain formed by the north and south rivers and the river swamp area formed by the rivers flowing southward into the lake area. The structure of the study area is mainly restricted by the system of the tectonic domain around the Pacific Ocean and a series of normal faults are formed. The boundary fault controls the distribution range of coal measure strata, while the fault in the study area plays a destructive role on the coal seam. The average maximum reflectance R0max of vitrinite group ranged from 0.56-0.68, the volatile Vdaf from 37.60-41.84, and the base low caloric Qnet was received. Ar ranged from 19.94-27.59MJ / kg, and the binder index was 3: 30-17, which was more than 5. Therefore, the main type of coal in the study area was long-flame coal. The metamorphic degree of coal is low metamorphic coal. There are 6 layers of locally minable coal seams. The coal content coefficient is 1 and the coal bearing area is about 59 km ~ 2. The comprehensive evaluation of coal resources in the study area is carried out in this paper. The evaluation results show that the study area is convenient in transportation, electricity and labor force is sufficient. Favorable conditions for exploration and development; Coal is bituminous coal, belongs to medium and high calorific value coal, the poisonous and harmful element is few, the mining will not cause the bad influence to the area environment; The investment return rate of coal resources in the study area is 60, the investment payback period is 1.67 years, the investment return rate is high, and the payback period is short. According to the current coal price situation, the economic prospect is good.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.11

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