苏里格气田某含水区气藏精细描述与富集区筛选

发布时间：2018-02-24 12:39

本文关键词： 苏里格致密砂岩岩性气藏气藏描述地质模型　出处：《东北石油大学》2016年硕士论文　论文类型：学位论文

【摘要】：天然气作为一种清洁、环保、高效的能源在世界能源中的地位日渐提高,20世纪90年代末,世界天然气需求量以每年3%的速度增涨,预测到2030年世界天然气的需求量将达到23%,取代煤而成为第二大一次性能源。近年来,随着国内天然气工业设施的逐步完善,我国天然产业也进入了快速发展期,2000年以来,国内低渗透砂岩气藏储量和产量快速增长,尤其是产量所占比重越来越大,预计2020年低渗透砂岩天然气年产量将占中石油天然气年总产量的30%。目前我国发现在陆上天然气藏大多属于中、低渗透储层,并且低渗透、特低渗透储层占了相当的比例。苏里格气田作为我国最大的气田之一,气田的有效开发肩负着西气东输的重任,事关国家经济建设和社会稳定,是关系我国经济和社会可持续发展的全局性战略问题。苏里格气田自2001年提交天然气探明储量以来,到2011年底,探明+基本探明储量达3.17万亿方,其中探明储量1.27万亿方;年天然气产量达137.2亿方,占中国石油的18.2%,占全国天然气产量的13.6%。为满足国内天然气需求,尽快完成苏里格气田上产,各合作区块采用滚动勘探开发的方式进行大规模建产,通过区块综合地质研究,筛选储量富集区进行集中建产。随着时间的推移,优质储量富集区逐渐减少,近年来,部分区域完钻气井单井较低产,并且出水严重,为区块稳产增加了难度,同时增加了采气成本。本次课题以苏里格气田某含水区域为研究对象,在综合地质研究的基础上进行储量富集区筛选,为区块井位部署提供依据,同时为其它相似气藏进行富集区筛选提供参考和借鉴。
[Abstract]:Natural gas, as a clean, environmentally friendly and efficient energy source, is becoming more and more important in the world. At the end of 90s, the demand for natural gas in the world is increasing at a rate of 3% per year. It is predicted that by 2030, the world natural gas demand will reach 23%, replacing coal as the second largest disposable energy. In recent years, with the gradual improvement of domestic natural gas industry facilities, the natural gas industry of our country has also entered a period of rapid development. Since 2000, China's natural gas industry has also entered a period of rapid development. The reserves and production of low permeability sandstone gas reservoirs in China are increasing rapidly, especially the proportion of production is increasing. In 2020, it is estimated that the annual production of low permeability sandstone gas will account for 30% of the total annual output of CNPC. At present, most of the onshore gas reservoirs in China are middle, low permeability and low permeability. As one of the largest gas fields in China, the effective development of the gas field shoulders the important task of transporting gas from the west to the east, which is related to the national economic construction and social stability. Sulige gas field has been submitted to the proven reserves of natural gas since 2001, until end of 2011, the proved basic proven reserves reached 3.17 tillion sides, of which 1.27 tillion were proved reserves; The annual natural gas production reached 13.72 billion square meters, accounting for 18.2x of PetroChina and 13.6 percent of the national natural gas production. In order to meet the domestic natural gas demand and complete Sulige gas field production as soon as possible, the cooperative blocks used rolling exploration and development to carry out large-scale construction and production. Through the comprehensive geological study of blocks, the concentrated production is selected from the areas with rich reserves. With the passage of time, the areas with high quality reserves are gradually reduced. In recent years, the single well in some regions is relatively low in production and the water output is serious. This project takes a certain water cut area of Sulige gas field as the research object, and carries on the reserve rich area selection on the basis of comprehensive geological research, which provides the basis for the block well location deployment. At the same time, it provides reference and reference for other similar gas reservoirs to select rich areas.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE37

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