| 摘要 |
A method and apparatus for securing and using hydrajetting tools within a borehole is described. Subterranean drilling operations typically include piercing a subterranean formation in order to release hydrocarbons (e.g., oil, gas, etc.) from the formation for retrieval at the surface. Hydrajetting may use a focused or pinpointed stimulation operation, which stimulates narrow bands of the formation while limiting damage to surrounding areas. Unfortunately, hydrajetting tools may be difficult to secure when downhole, causing movement in the hydrajetting tool that may decrease the accuracy and effectiveness of the tool. In accordance with the current application, the apparatus includes a housing that defines an inner bore. A flow limiting member may be disposed within the inner bore. The flow limiting member may include a first a first jet in fluid communication with the top of the housing, a first chamber positioned below and in fluid communication with the first jet, and a first cavity aligned with the first jet and in fluid communication with the chamber. A groove may be disposed on an outer surface of the housing, with an anchor assembly that is disposed around the housing and axially slidable and securable within the groove to provide an improved hydrajetting tool. |
