准噶尔盆地煤层气经济评价及单井商业气流标准研究

发布时间：2019-04-09 09:48

【摘要】：新疆维吾尔自治区在阜康白杨河地区建立了"新疆阜康市白杨河矿区煤层气开发利用先导性示范工程",是我国西部地区中低阶煤层气开发利用的首个成功范例。由于煤层气产业具有上下游一体化以及地质、工程、效益一体化等特点,因而对其经济效益的评价工作在整个产业链研究中便显得尤为重要,是地质选区与评价、钻井和地面工程、经营管理模式等方案设计与实施的核心。为此,对白杨河地区的煤层气探井和煤层气开发先导示范区分别进行了项目经济评价和单井商业气流标准研究,建立了准噶尔盆地煤层气商业气流标准,并绘制了该盆地煤层气商业气流标准图版。结果表明:当煤层气井埋深小于1 000 m、气价为1.814元/m~3时,煤层气井商业气流标准为1 838 m~3/d;当煤层气的埋深介于1 000~2 000 m时,煤层气商业气流标准为2 602 m~3/d;当煤层气的埋深介于2 000~3 000 m时,煤层气商业气流标准为3 795 m~3/d;当煤层气的埋深介于3 000~4 000 m时,煤层气商业气流标准为5 628 m~3/d。结论认为:准噶尔盆地南缘东部乌鲁木齐—白杨河地区埋深浅于1 000 m的中下侏罗统煤层气在目前的气价下,具有开采的可行性和经济效益。
[Abstract]:Xinjiang Uygur Autonomous region has set up "pilot demonstration Project of CBM Development and Utilization in Baiyang River Mining area of Fukang City, Xinjiang", which is the first successful example of the development and utilization of middle and low-order CBM in western China. Since the coalbed methane industry has the characteristics of integration of upstream and downstream and integration of geology, engineering and benefit, the evaluation of its economic benefits is particularly important in the study of the whole industrial chain, which is the geological district and evaluation. Drilling and surface engineering, management model and other program design and implementation of the core. For this reason, the project economic evaluation and single well commercial airflow standard of CBM exploration well and CBM development pilot demonstration area in Baiyang River area were carried out respectively, and the commercial gas flow standard of CBM in Junggar Basin was established, and the commercial gas flow standard of CBM in Junggar Basin was established. The standard map of commercial gas flow of coalbed methane in this basin is also drawn. The results show that when the buried depth of coal bed gas well is less than 1 000 m and the gas price is 1.814 yuan / m ~ (3), the commercial gas flow standard of coal bed gas well is 1 838 m ~ 3 ~ 3 d, and when the buried depth of coal bed gas is 1 000 m ~ 2 000 m, the commercial gas flow standard of coal bed gas is 2 602 m / m ~ (3) d; When the depth of coalbed methane is 2 000 m / 3 000 m, the commercial gas flow standard of coal bed methane is 3 795 m / 3 000 m, and when the depth of coal bed methane is 3 000? 4 000 m, the standard of commercial gas flow of coal bed methane is 5 628 m / 3? It is concluded that the middle and lower Jurassic coalbed methane buried more than 1 000 m in the eastern part of the southern margin of Junggar basin has the feasibility and economic benefit of exploitation under the present gas price.
【作者单位】：中国石油新疆油田公司勘探开发研究院;
【分类号】：TE37

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