基于ICP技术的天然气水合物开采方案

发布时间：2018-03-27 05:16

本文选题：天然气水合物　切入点：开采　出处：《中国石油勘探》2017年05期

【摘要】：天然气水合物(NGH)矿产储量巨大,燃烧后几乎不产生任何残渣,是一种高效利用的清洁能源。为了提出天然气水合物切实可行的开采方案,对天然气水合物成藏特点进行分析,通过当前室内研究的天然气水合物开采方法比较,并考虑到真实开采过程中可能出现的地层破坏问题,在CO_2乳状液置换天然气水合物中CH_4实验和页岩油ICP开采技术的启发下,最终制订出一套具有井工厂特点的天然气水合物开采方案。研究得出:ICP技术核心工艺冷冻墙、加热井井网布置能有效克服热散失,并持续提供热量促进天然气水合物分解。CO_2乳状液置换技术能在高效产出CH_4情况下形成CO_2水合物,防止地层因为天然气水合物分解而产生的地层破坏。注采监测系统的部署能实时监控生产反应过程,可操作性强,控制精度高。
[Abstract]:NGH (Natural Gas Hydrate) has huge mineral reserves and almost no residue after combustion. It is a clean energy with high efficiency. In order to put forward a feasible exploitation plan of natural gas hydrate, the characteristics of gas hydrate reservoir formation are analyzed. Based on the comparison of natural gas hydrate mining methods studied in laboratory at present, and considering the possible formation damage problem in the course of real exploitation, under the inspiration of CH_4 experiment in CO_2 emulsion replacement gas hydrate and ICP exploitation technology of shale oil, Finally, a set of natural gas hydrate exploitation plan with the characteristics of well factory is worked out. It is concluded that the cooling wall and heating well pattern arrangement of the core process of the 1 / ICP technology can effectively overcome the heat loss. And continuous heat supply to promote the decomposition of natural gas hydrate. CO2 emulsion replacement technology can form CO_2 hydrate under the condition of high CH_4 production. The deployment of injection-production monitoring system can monitor the process of production reaction in real time, which has strong maneuverability and high control precision.
【作者单位】：长江大学地球科学学院;中石油煤层气有限责任公司忻州分公司;中国石油新疆油田公司准东采油厂;中国石油华北油田公司勘探开发研究院;中国石油青海油田公司采油五厂;
【基金】：国土资源部中国地质调查局勘查项目“东北冻土区天然气水合物资源勘查”(GZHL20120304)
【分类号】：TE37

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