Downhole-Adjusting Impact Apparatus and Methods

摘要

A downhole-adjusting impact apparatus (DATA) mechanically coupled between opposing first and second portions of a tool string, wherein: the tool string is conveyable within a wellbore extending between a wellsite surface and a subterranean formation; the first tool string portion comprises a first electrical conductor in electrical communication with surface equipment disposed at the wellsite surface; the DATA comprises a second electrical conductor in electrical communication with the first electrical conductor; and the DATA is operable to: detect an electrical characteristic of the second electrical conductor; impart a first impact force on the second tool string portion when the electrical characteristic is detected; and impart a second impact force on the second tool string portion when the electrical characteristic is not detected, wherein the second impact force is substantially greater than the first impact force.

主权项

1. An apparatus, comprising:
a downhole-adjusting impact apparatus (DATA) mechanically coupled between opposing first and second portions of a tool string, wherein:
the tool string is conveyable within a wellbore extending between a wellsite surface and a subterranean formation;the first tool string portion comprises a first electrical conductor in electrical communication with surface equipment disposed at the wellsite surface;the DATA comprises a second electrical conductor in electrical communication with the first electrical conductor; andthe DATA is operable to:
detect an electrical characteristic of the second electrical conductor;impart a first impact force on the second tool string portion when the electrical characteristic is detected; andimpart a second impact force on the second tool string portion when the electrical characteristic is not detected, wherein the second impact force is substantially greater than the first impact force.