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    Well stimulation process and low velocity explosive formulation
    2.
    发明授权
    Well stimulation process and low velocity explosive formulation 失效
    良好的刺激过程和低速爆炸性配方

    公开(公告)号：US4764231A

    公开(公告)日：1988-08-16

    申请号：US97530

    申请日：1987-09-16

    申请人： Frank E. Slawinski ,  William L. Frantz

    发明人： Frank E. Slawinski ,  William L. Frantz

    IPC分类号： C06B23/00 ,  C06B25/10 ,  C06B25/14

    CPC分类号： C06B23/005 ,  C06B25/10

    摘要： Well stimulation involving use of a liquid explosive composition in the explosive fracturing of subterranean formations such as oil and gas bearing formations. An explosive formulation comprising a nitrate ester explosive component and a phlegmatizer component is introduced into a well penetrating the formation to be fractured. The phlegmatizer component is an alkyl or alkoxy diester which is mixable with the nitrate ester and can be varied in concentration to control the detonation velocity and maximum explosive pressure. Examples of phlegmatizing agents include alkyl or alkoxy alkyl esters of adipate or azelaic acids such as dibutoxyethyl adipate or diisobutyl azelate or polyethylene glycoxy-based diesters such as triethylene glycol dipelargonate. After the formulation is detonated to fracture the formation, the well is placed on production to recover hydrocarbons at an increased rate.

    摘要翻译： 井底刺激涉及在地下地层爆炸性压裂中使用液体炸药组合物，如油气和瓦斯地层。 将包含硝酸酯炸药组分和钝化剂组分的爆炸性制剂引入穿透地层以破裂的井中。 消声剂组分是烷基或烷氧基二酯，其可以与硝酸酯混合并且可以以浓度变化以控制爆轰速度和最大爆炸压力。 絮凝剂的实例包括己二酸或壬二酸的烷基或烷氧基烷基酯，例如己二酸二丁氧基酯或壬二酸二异丁酯，或聚乙二醇乙二醇二酯，如三甘醇二月桂酸酯。 在配方被引爆以破坏地层后，将井置于生产状态以以增加的速率回收碳氢化合物。