Inventors:
Gary L. Rytlewski - League City TX, US
Jorge Lopez De Cardenas - Sugar Land TX, US
Raymond Dickes - Sugar Land TX, US
Philip Kneisl - Pearland TX, US
Timothy A. Andrzejak - Sugar Land TX, US
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX
International Classification:
E21B 43/263
F42B 3/10
F42B 3/11
F42B 3/117
Abstract:
An explosive pellet for characterizing a fracture in a subterranean formation is provided. The pellet can include a casing having a detonation material and an explosive material disposed within the casing. The pellet can also include a nonexplosive material moveably disposed within the casing. Movement of the nonexplosive material can generate a predetermined amount of energy in the form of friction-generated heat sufficient to detonate the explosive material.