发明名称 |
Externally-orientated internally-corrected perforating gun system and method |
摘要 |
A perforating gun comprising an elongated shaped scallop that is cut circumferentially in an outside surface of the perforating gun such that said scallop has a constant thickness portion and a variable thickness portion. The variable thickness portion is cut on either end of the constant thickness portion and an arcuate length of the constant thickness portion subtends an angle at a center of said perforating gun. The elongated shaped scallop aligns to shaped charges that are oriented along a desired perforating orientation in the perforating gun. During perforating, the shaped charges perforate through the elongated shaped scallop such that a burr created by the plural shaped charges does not substantially protrude past an outside diameter of the perforating gun. |
申请公布号 |
US9382784(B1) |
申请公布日期 |
2016.07.05 |
申请号 |
US201514678338 |
申请日期 |
2015.04.03 |
申请人 |
GEODYNAMICS, INC. |
发明人 |
Hardesty John T.;Clark Nathan G.;Rollins James A. |
分类号 |
E21B43/117;E21B43/119 |
主分类号 |
E21B43/117 |
代理机构 |
Carstens & Cahoon, LLP |
代理人 |
Carstens David W.;Allada Sudhakar V.;Carstens & Cahoon, LLP |
主权项 |
1. A perforating gun for use in a wellbore casing, comprising an elongated shaped scallop extending circumferentially within an outside wall of said perforating gun such that said scallop has a constant thickness portion and a variable thickness portion in said outside wall; said variable thickness portion configured on either end of said constant thickness portion; an end of said variable thickness portion configured with a thickness substantially equal to a thickness of said wall; an arcuate length of said constant thickness portion subtending an angle at a center of said perforating gun; said elongated shaped scallop is configured to align to plural shaped charges in said perforating gun; said plural shaped charges are configured to orient along a desired perforating orientation;
wherein when perforating, said plural shaped charges perforate through said elongated shaped scallop such that a burr created by said plural shaped charges does not substantially protrude past an outside diameter of said perforating gun. |
地址 |
Millsap TX US |