FRACTURING FLUID FOR SECONDARY GAS PRODUCTION
    1.
    发明公开
    FRACTURING FLUID FOR SECONDARY GAS PRODUCTION 有权
    FLÜSSIGKEITSAUFBRECHUNGFÜREINESEKUNDÄRGASHERSTELLUNG

    公开(公告)号:EP2847294A1

    公开(公告)日:2015-03-18

    申请号:EP13724011.5

    申请日:2013-05-07

    发明人: KUIPERS, Edgar

    IPC分类号: C09K8/64 E21B43/26 E21B43/267

    摘要: The invention pertains to a process for fracturing a subterranean formation using a mixture of methane (natural gas) and propane/butane (liquefied petroleum gas). The process comprises: a)providing a first fluid (in a gas or liquefied form) comprising at least 50 wt.% of methane: b)providing a second fluid (in a gas or liquefied form) comprising at least 50 wt.% of the combination of propane and butane: c)mixing and, in case of a gas mixture, liquefying said first fluid and said second fluid to obtain a liquefied fluid mixture comprising 15-80 wt.% of methane and 15-80 wt.% of the combination of propane and butane, said liquefied mixture having a temperature and a pressure such that the liquefied fluid stays above the bubble point of the mixture; d)blending a proppant and/or a gellant into the liquefied fluid mixture to produce a 1 fracturing fluid; e)injecting the fracturing fluid into the subterranean formation.

    摘要翻译: 本发明涉及使用甲烷(天然气)和丙烷/丁烷(液化石油气)的混合物压裂地下地层的方法。 该方法包括:a)提供第一流体(气体或液化形式),其包含至少50wt。 %的甲烷:b)提供包含至少50重量%的第二流体(气体或液化形式) 丙烷和丁烷的组合的%:c)混合,并且在气体混合物的情况下液化所述第一流体和所述第二流体以获得液化流体混合物,其包含15-80wt。 甲烷%和15-80wt。 丙烷和丁烷的组合的%,所述液化混合物具有使液化流体保持在混合物的起泡点以上的温度和压力; d)将支撑剂和/或胶凝剂混合到液化混合物中以产生1个压裂液; e)将压裂流体注入到地层中。