US 11,536,114 B2 · Fluid flow activated rotational cleaning tool

Abstract

A system to clean well casing in a downhole well operation. The system comprises an inner collar having flow ports and an out collar having jet ports in fluid communication with the flow ports. The inner collar couples with a section of a tool string and the outer collar rotates about the inner collar in response to fluid flow through the tool string. The inner collar can include a sleeve. The sleeve can be moved from a first position to a second position causing the jet ports to be in fluid communication with the flow ports. The inner collar remains relatively stationary with respect to the rotation of the outer collar. In addition, the jet ports are angled in a way that a portion of force generated by the fluid flow through the jet ports induce rotation of the outer collar in the opposite direction of the fluid flow.

Claims18

Dependent claims

A system for use with a tool string to clean well casing in a downhole well operation, the system comprising:

an inner collar comprising at least one flow port;
and
an outer collar comprising at least one jet port in fluid communication with the at least one flow port;
wherein the inner collar extends along an exterior section of the tool string such that fluid flowing through an inner diameter of the tool string is channeled through the at least one flow port into the at least one jet port, and
wherein the outer collar rotates about the inner collar in response to fluid flow through the tool string.

2 more elements

Dependencies are inferred from the claim text.

Fluid flow activated rotational cleaning tool

Life of this patent

Fluid flow activated rotational cleaning tool

Life of this patent

Abstract

Claims18