PICO Circ Sub

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Flow-activated multi cycle circulating tool

Page last modified

October 8 2024

The Patented Hydropulsion PICO Circ Sub is a versatile, flow-activated, multi-cycle circulating tool designed for a variety of well interventions. It enables seamless remote switching between flow-through and circulating modes, optimizing fluid flow for jetting or milling tools, even when used with extended-reach tools. Mode switching is achieved effortlessly by cycling the fluid pumps on and off.

In flow-through mode, all pumped fluid passes directly through the tool to the jetting or milling equipment below. In circulating mode, all pumped fluid is diverted through ports in the tool, increasing annular velocity and enhancing cuttings removal.

The PICO Circ Sub is available in diameters ranging from 1 11/16" to 3 1/8" and lengths from 8" to 16". Its simple, robust design ensures efficient debris removal during jetting and milling operations, while also protecting jetting motors and tools from damage.

Pros & Limitations

Flow activated, no need for drop balls or darts

Compact design

Multicycle design

Improved efficiency of wellbore cleaning

Can isolate jetting tools or motors below from pumped fluid

Suitable for use with nitrogen, acids and stimulation fluids

Suitable for use with extended-reach tools

Suitable for high temp operations

Specification

Specification Title	Specification Description
OD (Inches)	1.688, 2.125, 2.875, 3.125
Length (inches)	8.00, 9.50, 12.00, 16.00
Connection	1.00" AMMT, 1-1/2" AMMT, 2-3/8" PAC
Max Flow Area (Inches2)	0.17, 0.19, 0.39, 0.44
Tensile Strength (lbs)	33,860, 59,200, 142,400, 260,200 Lbs
Materials	4140 18-22 RC steel, others available upon request.
Activation	Flow activated, no balls/darts needed
Cycling	Multicycle, remotely controlled