发明名称 |
CORING TOOLS AND METHODS FOR MAKING CORING TOOLS AND PROCURING CORE SAMPLES |
摘要 |
Methods of procuring a core sample may involve engaging an earth formation with a cutting structure of a coring bit. A core sample may be received within a receptacle connected to the coring bit, the receptacle being lined with a sponge material. A space of about 1 mm or less may be maintained between the core sample and the sponge material. Coring tools may include a coring bit comprising an inner gage and an outer gage and a sponge material positioned to at least partially surround a core sample cut by the coring bit. A radial distance between an inner surface of the sponge material and the inner gage of the coring bit may be about 1 mm or less. A distance between a center of curvature of the inner gage and a center of curvature of the outer gage may be about 0.3 mm or less. |
申请公布号 |
WO2015010003(A1) |
申请公布日期 |
2015.01.22 |
申请号 |
WO2014US47165 |
申请日期 |
2014.07.18 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
WESEMEIER, CHRISTOPH;UHLENBERG, THOMAS |
分类号 |
E21B25/02;E21B25/04;E21B49/06 |
主分类号 |
E21B25/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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