Knuckle Joint - (KJO)The Knuckle Joint allows sections of a logging string to be changed from centralised todecentralised in order to ensure that all sensors have the optimal position in the well bore. This may be particularly important when, for example, a CCL needs to be decentralised to getbetter collars, but the fluid density and fullbore flowmeter still require to be centralised.

All Knuckle Joints are designed such that when two are coupled together, they will fullydecentralise different parts of the tool string in different tubing sizes allowing them to runparallel to each other.

Designed around a precision, high-strength ball joint mechanism, the Knuckle Joint providessuperior strength and articulation. The implementation of an easily field-replaceable throughconnection results in extremely simple maintenance.

These are available with multiple head configurations and can be configured with client specifichead types if required.

Product featuresHigh strength ball and socket design>2 1/8" tools suitable for perforating operations>Designed for simple maintainance in the field>

Product applicationsCan be used to decentralise tools for better sensor response>Sections of the toolstring can be centralised to reduce drag to access highly deviated wells>Centralise part of the toolstring to make it easier to run in hole>

Knuckle Joint - (KJO)

> SpecificationsKJO-C KJO-F

Part Number 113-99003 113-99008

Diameter 1 11⁄16" / 43 mm 2 1⁄8" / 54 mm

Length 7.0" / 178 mm 10.2" / 259 mm

Weight in Air 4.2 lbs / 1.9 Kg 6.3 lbs / 2.9 Kg

Connections GO-A GO-A

Fishing Strength 26,000 lbs / 11,793 Kgs 30,000 lbs / 13,600 Kgs

> SpecificationsKJO-E KJO-G KJO-M

Part Number 113-99007 113-99006 113-99009

Diameter 1 11⁄16" / 43 mm 2 1⁄8" / 54 mm 2 3⁄4" / 70 mm

Length 7.00" / 178 mm 7.0" / 178 mm TBC

Weight in Air 4.2 lbs / 1.9 Kg 5.1 lbs / 2.3 Kg TBC

Connections BA-A3 BA-A3 GO B

Fishing Strength 26,000 lbs / 11,793 Kgs 30,000 lbs / 13,600 Kgs TBC

> Common Specifications

Pressure (Max) 20,000psi Temperature(max) 177C / 350F

Articulation +/- 12.5 degrees Min ArticulationLife 50,000 Cycles

Thru- Current 7A