| 发明名称 |
MEMBER FOR HYDROCARBON RESOURCE COLLECTION DOWNHOLE TOOL |
| 摘要 |
A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin having a weight average molecular weight of at least 70,000, having an effective thickness which is ½ or more of a critical thickness of surface decomposition, and exhibiting a thickness reduction rate in water which is constant with respect to time. As a result, it has become possible to more accurately design the strength and time up to the collapse of the downhole tool member which forms the whole or a part of a downhole tool for developing or repairing downholes for recovery of hydrocarbon resources, such as oil and gas. |
| 申请公布号 |
US2016108696(A1) |
申请公布日期 |
2016.04.21 |
| 申请号 |
US201514984667 |
申请日期 |
2015.12.30 |
| 申请人 |
KUREHA CORPORATION |
发明人 |
OKURA Masayuki;Saijo Hikaru;YOSHIDA Katsumi;Sato Hiroyuki |
| 分类号 |
E21B33/12 |
主分类号 |
E21B33/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A downhole tool for hydrocarbon resource recovery,
consisting of a shaped body of a polyglycolic acid resin having a weight-average molecular weight of at least 70,000, having an effective thickness which is ½ or more of a critical thickness of surface decomposition, and exhibiting a constant thickness reduction rate in water with respect to time. |
| 地址 |
Tokyo JP |
