drilling Organophilic lignite (amine treated lignite) as filtration‐control additive

organophilic lignite

What is organophilic lignite?

A organophilic lignite that has been coated with a chemical that renders it dispersible in oil. The treatment is sometimes accomplish with a kind of quaternary amine compound.


Mixes simply

Controls HTHP filtrate

Works altogether kinds of Oil Base Muds and synthetic Base Muds at variable concentrations

Increases the stability of fluids to temperatures above 400 F

Provides supplemental emulsion stability at high temperatures

Organophlic lignite is amine treated lignite work in oil drilling

The treatment is usually accomplished with a type of quaternary amine compound.(amine treated lignite) is a filtration‐control additive design for use in all oil‐base systems, as well as synthetic‐base systems. It is an effective alternative to asphalt or gilsonite where their use is undesirable.  Amine treated lignite effective and applicable in all oil‐ and synthetic‐base drilling fluids, and is compatible with other additives.

Application and Dosage

It is typically added to drilling mud at recommend dosages base on the specific well conditions, drilling objectives, and mud system requirements. The dosage may vary depending on factors such as mud type, drilling depth, and desire performance outcomes. It is essential to follow manufacturer guidelines and conduct thorough testing to determine the optimal concentration of organophilic lignite for a particular drilling operation.

Functions and Benefits of Organophilic Lignite

It is offers several functions and benefits when incorporated into drilling mud:

  1. Filtration Control: Organophilic lignite forms a thin, resilient filter cake on the wellbore wall, reducing fluid loss and preventing the invasion of drilling mud into the formation. This helps maintain wellbore stability, minimize formation damage, and improve overall drilling efficiency.

  2. Shale Inhibition: Shale formations can present challenges during drilling due to their tendency to swell and cause wellbore instability. Organophilic lignite exhibits shale inhibition properties, reducing the interaction between drilling mud and shale, and helping to prevent issues such as stuck pipe and wellbore collapse.

  3. Emulsification and Stabilization: Organophilic lignite aids in the emulsification and stabilization of oil-base drilling mud. It enhances the compatibility between oil and water components, leading to a more stable and effective drilling mud system.

  4. Fluid Loss Control: By forming a barrier on the wellbore wall, organophilic lignite helps control fluid loss during drilling. This is crucial for maintaining adequate wellbore pressure and preventing the influx of formation fluids into the wellbore.

  5. Wellbore Lubrication: The presence of organophilic lignite in drilling mud provides improved wellbore lubrication, reducing friction between the drill string and the wellbore wall. This helps minimize torque and drag, allowing for smoother and more efficient drilling operations.


Mixes easily and Controls HTHP filtrate
Works in all types of Oil Base Muds and Synthetic Base Muds at varying concentrations
Increases the stability of fluids to temperatures above 400 F
Provides supplemental emulsion stability at high temperatures

Application                                                         Material Needed
HTHP filtrate control                                   1.0 to 10 ppb (2.85 to 28.5 kg/m3)
Supplemental emulsion stability            2.0 to 15 ppb (5.7 to 42.75 kg/m3)

Packing of Organophlic lignite

Organophlic lignite is packing in 50LBS multi paper bag on pallet.

How to product Organophlic lignite – amine treated lignite (Versalig)

50 parts of lignite, dry basis (66.8 parts as received) were mixed with 150 parts hot water and 7.5 parts sodium hydroxide in a Waring Blendor for five minutes. In a separate Waring Blendor jar there were mixed 130 parts of hot water, 18.5 parts of concentrated hydrochloric acid (37% HCl) and 55 parts the Partial Amide 0.7. The lignite solution was added to the Blendor jar containing the HCl and Partial Amide 0.7 and mixed 7 minutes. The slurry was then dried at 150° F. and the Organophlic lignite – amine treated lignite (Versalig)  ground to a fine powder.

The invention provides a novel process of preparing Organophlic humate derivatives wherein: an aqueous solution of a humic acid-containing material is prepare with an alkali metal or ammonium base; an amine containing at least 16 carbon atoms and at least one functional group per molecule select from the group consisting of primary amino, secondary amino, quaternary ammonium, and mixtures thereof, is mix with the humate solution; an acid is mix with the amine-containing humate solution in an amount at least sufficient to neutralize all of the alkali metal or ammonium base use to prepare the humate solution; and thereafter the organophilic substitute ammonium humate derivative is recover.

FAQs (Frequently Asked Questions)

  1. Q: Is organophilic lignite suitable for all types of drilling operations?

    • A: It is primarily use in oil-base drilling mud systems. It is not commonly use in water-base or other types of drilling operations.
  2. Q: How is organophilic lignite added to drilling mud?

    • A: It is typically adde to drilling mud through a control mixing process. It is gradually introduce into the mud system while ensuring proper dispersion and thorough mixing.
  3. Q: What is the shelf life of organophilic lignite?

    • A: The shelf life of it can vary depending on storage conditions and the specific product. It is recommending to follow the manufacturer’s guidelines and store the additive in a cool, dry place to maintain its effectiveness.
  4. Q: Can organophilic lignite be used in high-temperature drilling environments?

    • A: It is exhibits good stability at elevated temperatures. However, it is important to consider the specific temperature limits and compatibility with other additives in the drilling mud system. Manufacturers can provide guidance on the suitability of organophilic lignite for high-temperature applications.
  5. Q: Are there any environmental considerations related to organophilic lignite usage?

    • A: It is considering relatively safe and environmentally friendly when handle and dispose of properly. It is important to follow applicable regulations and guidelines for handling, storage, and disposal to minimize any potential environmental impact.

Take advantage of the benefits offer by organophilic lignite in drilling operations. Enhance filtration control, shale inhibition, emulsification, fluid loss control, and wellbore stability by incorporating this specialized additive into your drilling mud system. With its unique properties and functions, It can contribute to improve drilling performance, increase efficiency, and successful wellbore integrity.


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