Patent ID: 9732601
Date: 2017-08-15
CPC Classifications: E21B

Claim:
1. An electrical well stimulation device, comprising: a plurality of sections configured to be joined end-to-end to form a tool comprising a first electrode and a second electrode, each section comprises a part of the first electrode to form the first electrode and each section comprises a part of the second electrode to form the second electrode, the second electrode is a peripheral electrode electrically insulated from the first electrode, the first electrode and the second electrode of the tool forming a stimulation head at one of the ends of the tool; one end of a body of a first section comprises a peripheral ring which is rotationally mobile and translationally immobile relative to the body of the first section, the peripheral ring comprises a threading configured to cooperate with a threading of a second electrode part of a second section to join the second section to the first section; the threading of the peripheral ring is an external threading, a second electrode part of the first section comprises an extension between the peripheral ring and a termination of the end of the first section; and the first section comprises an electrical contact configured to establish an electrical connection between the second electrode part of the first section and the second electrode part of the second section in a zone of contact of the extension in response to the second section being joined onto the first section.