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    • 4. 发明授权
    • Method and apparatus for artificial ground freezing
    • 人造地面冻结的方法和装置
    • US06796139B2
    • 2004-09-28
    • US10375521
    • 2003-02-27
    • George BrileyJoe Sopko
    • George BrileyJoe Sopko
    • F25D2312
    • E21D1/12A63C19/10E02D3/115E21B36/001F25B7/00F25B9/008F25B2309/06
    • A ground freezing method and system which circulates refrigerated heat transfer fluid through freeze pipes in the ground at a low temperature of at least −52° C. (−62° F.) to minimize drilling for the freeze pipe installation. The heat transfer fluid is preferably aqua ammonia (ammonium hydroxide) because of its beneficial characteristics in this application. The circulating heat transfer fluid is preferably cooled by a refrigeration system that includes low and high stage cycles arranged in a cascade relationship and using ammonia or another refrigerant in the high stage refrigeration system and carbon dioxide as the refrigerant in the low stage refrigeration system.
    • 一种地面冷冻方法和系统,其在至少-52℃(-62°F)的低温下将冷藏的传热流体通过地面中的冷冻管循环,以最小化用于冷冻管安装的钻孔。 传热流体优选为氨水(氢氧化铵),因为其在本申请中具有有益的特性。 循环传热流体优选由包括低级和高级级联的级联关系的制冷系统冷却,并且在低级制冷系统中使用氨或另一种制冷剂和二氧化碳作为低级制冷系统中的制冷剂。
    • 8. 发明授权
    • Method for excavating a large diameter shaft into the earth and at least
partially through an oil-bearing formation
    • 将大直径轴挖入地球并至少部分通过含油地层的方法
    • US4597444A
    • 1986-07-01
    • US653103
    • 1984-09-21
    • Thomas S. Hutchinson
    • Thomas S. Hutchinson
    • E21B36/00E21B43/24E21B43/30E21D1/03E21D1/12
    • E21B36/001E21B43/24E21B43/30E21D1/03E21D1/12
    • A method for positioning a large diameter shaft from the surface into the earth and at least partially through a subterranean oil-bearing formation, said method comprising(a) Positioning a central well near the center of a selected shaft location, said central well extending at least partially through said oil-bearing formation;(b) Positioning a plurality of wells at a selected distance outside the diameter of said shaft and about said shaft, said wells extending at least partially through said oil-bearing formation;(c) Injecting a fluid through at least a portion of said wells into said oil-bearing formation to remove oil from said oil-bearing formation;(d) Producing fluids from said central well;(e) Injecting water into said oil-bearing formation through said portion of said wells after the injection of said fluid through said portion of the said wells;(f) Freezing a zone about said location; and,(g) Excavating said shaft.
    • 一种用于将大直径轴从表面定位到地球中并且至少部分地穿过地下含油层的方法,所述方法包括(a)在选定的轴位置的中心附近定位中心井,所述中心井在 最少部分地通过所述含油地层; (b)将多个井定位在所述轴的直径和所述轴之外的选定距离处,所述井至少部分延伸穿过所述含油地层; (c)通过所述井的至少一部分将流体注入所述含油地层以从所述含油地层中除去油; (d)从所述中心井产生流体; (e)在通过所述井的所述部分注入所述流体之后,通过所述井的所述部分将水注入所述含油地层; (f)冻结关于该地点的区域; 和(g)挖掘所述轴。