天然气水合物水力压裂致裂影响因素的探索研究  

Exploration of influencing factors on fracturing of natural gas hydrate by hydraulic fracturing

作　　者：陈晨 王磊 温欣 张秋香 Chen Chen;Wang Lei;Wen Xin;Zhang Qiuxiang(Tangshan Polytechnic University,Tangshan 063299,China;Tangshan Zhonghao Chemical Corporation Ltd.,Tangshan 063611,China;Collaborative Innovation Center for Geotechnical Engineering Disaster Prevention and Mitigation Application Technology,Tangshan 063299,China;Tangshan Boleckman Construction Technology Corporation Ltd.,Tangshan 063299,China)

机构地区：[1]唐山工业职业技术大学建筑工程学院,河北唐山063299 [2]唐山中浩化工有限公司,河北唐山063611 [3]河北省岩土工程防灾减灾应用技术协同创新中心,河北唐山063299 [4]唐山市伯莱克曼建筑科技有限公司,河北唐山063299

出　　处：《煤炭与化工》2025年第1期148-151,共4页Coal and Chemical Industry

基　　金：河北省高等学校科学技术研究项目(ZC2024147)。

摘　　要：水力压裂技术作为一种储层增产的技术,可化解天然气水合物开采工程中出现的产量低等关键问题,本文在系统梳理天然气水合物水力压裂理论和技术的基础上,进一步探讨了压裂液的选择、支撑剂、压裂液的黏度以及压裂液的注入速率对水力压裂致裂所产生的影响。结果表明,选用的压裂液其性能可将对储集层的伤害降到最低,支撑剂在缝中的铺设状况以及裂缝的闭合压力对起裂效果影响显著,高注入速率的压裂液有利于形成贯穿层理面的水力裂缝。最后针对存在的问题与挑战进行了讨论和展望,为海域天然气水合物储层水力压裂提供一定的理论指导。Based on hydraulic fracturing technology as a reservoir stimulation technology to solve the key problems of low output in the natural gas hydrate exploitation project,the theory and technology of hydraulic fracturing of natural gas hydrate systematically were sorted out.The influences of the selection of fracturing fluid,proppant,viscosity of fracturing fluid and injection rate of fracturing fluid on fracturing were further discussed.The results show that the performance of the selected fracturing fluid should minimize the damage to the reservoir.The laying condition of the proppant in the fracture and the closing pressure of the fracture have significant influence on the fracture initiation effect.The fracturing fluid with high injection rate is conducive to the formation of hydraulic fractures across the bedding surface.Finally,the existing problems and challenges were discussed and prospected to provide some theoretical guidance for hydraulic fracturing of Marine gas hydrate reservoirs.

关 键 词：天然气水合物 水力压裂 裂缝致裂 压裂液 支撑剂 注入速率 

分 类 号：TQ95[化学工程]