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JANUS OILFIELD TECHNOLOGY s.r.l. . The Company that developed and patented the DOPE DIFFUSER (Ravenna Chamber of Commerce ). DOPE DIFFUSER. TOOL SPREAD. TOOL SPREAD . Guide pins. Diffusing element. TOOL SPREAD. Tool Spread TBG Drill Pipe. Tool Spread CSG.

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The Company that developed and patented the DOPE DIFFUSER

(Ravenna Chamber of Commerce )

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Tool spread l.jpgSlide 3


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Guide pins

Diffusing element

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Tool Spread TBG

Drill Pipe

Tool Spread CSG

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Diffusing Element (the patent)

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  • The Dope Diffuser is used in running completion to obtain an even distribution of a weighed quantity of the COMPOUND on the threads

  • It is also particularly suitable for the drillpipe, giving unquestioned logistic and economic advantages

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  • Once the Tool Spread is positioned in the box only a few seconds are needed for even calibrated distribution of the compound on the surface of the threads

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Failure analysis (1 of 3)

Systematic use of the compound following the procedure ensures:

  • Human error in using the compound in the wrong way is reduced to zero when there are a number of buckets on the rig floor.

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Failure analysis (2 of 3)

  • Application using a brush gives uneven distribution and allows contamination: with resultant seizure and loss of the thread ;

  • The Dope Diffuser protects the compound from foreign bodies as it is enclosed in the distributor and eliminates the risk of brushes falling accidentally down the well.

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Failure analysis (3 of 3)

  • The compound has a lubricating power corresponding to a precise screwing torque.

  • NEVER add oil or diesel fuel to improve the spreading characteristics as this changes the power of the lubricant.

  • The Dope Diffuser mixes the compound eliminating the gravity separation of heavy metals from oil and grease.

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Economic analysis

With the Dope Diffuser savings are made:

  • The quantity is measured out for the connection only and excess application as in the traditional method is eliminated.

  • The excess that usually falls down the well creates blockages that make it difficult (and expensive) to send down work-over or drilling equipment.

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Safety Analysis

The compound no longer SPILLS over the rig floor because the entire application process is enclosed;

This keeps the work area clean which is of basic importance for safety and stops the operational personnel from slipping .

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Environmental Impact Analysis

The elimination of spills is also essential for respect of the environment;

The Dope Diffuser prevents anything from the greasing process from falling into the sea in Off Shore installations and into the ground On Shore.

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Thread Compound Background (1 of 3)

Historically the compound used both in drilling and production consisted of lubricating grease made from petroleum and containing heavy metals such as LEAD, ZINC, COPPER for:

  • Protection of metal to metal contact and seizing up in situations of high stress;

  • Secure seal against high internal pressures.

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Thread Compound Background (2 of 3)

Ductility and malleability are advantageous properties of LEAD, ZINC and COPPER, allowing them to:

  • Compact and deform without fracturing and prevent wear and damage to metal surfaces;

  • Form an effective seal between the threads and/or shoulders of the connections (pipes and drill pipes)

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Thread Compound Background (3 of 3)

The compound OCCUPIES the spaces between the tips and roots of the threadsAND INFILTRATES between the contact surfaces of threads and shoulders, under screwing torque before and after drilling.

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  • JANUS OILfield TEChnology s.r.l.

    Loizzi GianfrancoTlc + 39 333 3296353

  • E mail:


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