发明名称 |
METHODS FOR FORMING BORING SHOES FOR WELLBORE CASING, AND BORING SHOES AND INTERMEDIATE STRUCTURES FORMED BY SUCH METHODS |
摘要 |
Methods of attaching a crown of a boring shoe to a casing section include attaching an adaptable shank to a crown, and machining the adaptable shank to configure an end thereof for attachment to a casing section after attaching the adaptable shank to the crown. Additional methods include welding an end of an adaptable shank to a crown to form a boring shoe, selecting the adaptable shank to have an average wall thickness greater than about five percent (5%) of a maximum diameter of the crown, and configuring an opposite end of the adaptable shank for attachment to a particular type of casing section after welding the shank to the crown. Boring shoes have an adaptable shank attached to a crown, wherein the shank comprises a generally cylindrical wall having an average wall thickness greater than about five percent (5%) of a maximum diameter of the crown.
|
申请公布号 |
US2010252331(A1) |
申请公布日期 |
2010.10.07 |
申请号 |
US20090416804 |
申请日期 |
2009.04.01 |
申请人 |
HIGH ANGELA D;BEUERSHAUSEN CHRISTOPHER C;WILLIAMS ADAM RICHARD |
发明人 |
HIGH ANGELA D.;BEUERSHAUSEN CHRISTOPHER C.;WILLIAMS ADAM RICHARD |
分类号 |
E21B19/18;E21B7/20;E21B17/14 |
主分类号 |
E21B19/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|