发明名称 |
BALL SEALER FOR HYDROCARBON RESOURCE RECOVERY, METHOD FOR MANUFACTURING SAME, AND METHOD FOR TREATING BOREHOLE USING SAME |
摘要 |
A ball sealer for hydrocarbon resource recovery, characterized by being obtained by coating a spherical core that comprises at least one layer comprising a disintegrable aliphatic polyester resin with a resin material that has higher impact resistance than the aliphatic polyester resin and by having a diameter of not less than approximately 25 mm (1 inch). This ball sealer has a large diameter, retains the property of being disintegrable after fracturing, and has impact resistance which makes the ball withstand high-velocity loading. The sealer is suitable for use in hydraulic fracturing, which is commonly used for recovering hydrocarbon resources including petroleum and gases. This large-diameter ball sealer can be efficiently formed with high dimensional accuracy by a method including at least one insert injection molding step. |
申请公布号 |
CA2933148(C) |
申请公布日期 |
2017.01.10 |
申请号 |
CA20142933148 |
申请日期 |
2014.12.15 |
申请人 |
KUREHA CORPORATION |
发明人 |
OKURA, MASAYUKI;TAKAHASHI, TAKEO |
分类号 |
E21B4/18;C09K8/70;E21B43/16 |
主分类号 |
E21B4/18 |
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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