| 发明名称 |
Method of fracturing multiple zones within a well |
| 摘要 |
A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the length of a portion of the wellbore. The flow-through passages within each zone have different characteristics provided by orienting the flow-through passages in directions in each of the two or more zones relative to a selected direction to provide differences in fracture initiation pressures within each of the two or more zones. A fracturing fluid is introduced into the wellbore in a fracturing treatment. The fracturing fluid in the fracturing treatment is provided at a pressure that is above the fracture initiation pressure of one of the two or more zones to facilitate fracturing of said one of two or more zones while remaining below the fracture initiation pressure of any other non-fractured zones of the two or more zones. The process is repeated for at least one or more non-fractured zones of the two or more zones. |
| 申请公布号 |
US9121272(B2) |
申请公布日期 |
2015.09.01 |
| 申请号 |
US201113204392 |
申请日期 |
2011.08.05 |
| 申请人 |
Schlumberger Technology Corporation |
发明人 |
Potapenko Dmitry Ivanovich;Lecerf Bruno;Alekseenko Olga Petrovna;Fredd Christopher N;Tarasova Elena Nikolaevna;Medvedev Oleg;Gillard Matthew Robert |
| 分类号 |
E21B43/26;E21B43/14 |
主分类号 |
E21B43/26 |
| 代理机构 |
|
代理人 |
Vandermolen Mathieu;Greene Rachel E.;Curington Tim |
| 主权项 |
1. A method of fracturing multiple zones within a wellbore formed in a subterranean formation, the method comprising:
(a) forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the length of a portion of the wellbore, the flow-through in each of the two or more passages orientated relative to a selected direction to provide different fracture initiation pressures within each of the two or more zones; (b) introducing a fracturing fluid into the wellbore in a fracturing treatment; (c) providing a pressure of the fracturing fluid in the fracturing treatment that is above the fracture initiation pressure of one of the two or more zones to facilitate fracturing of said one of the two or more zones, the pressure of the fracturing fluid being below the fracture initiation pressure of any other non-fractured zones of the two or more zones; and then (d) repeating (c) for at least one or more non-fractured zones of the two or more zones. |
| 地址 |
Sugar Land TX US |
