Enhanced Wetting Reversal Agent For Oil-Based Drilling Fluids (O-WET DRIL)

Product Overview

Millennium Energy O-WET DRIL is an alkylphenol ethoxylate‑based enhanced wetting reversal agent, a general‑purpose OBM wetting reversal agent for weighting‑agent suspension in oil‑based and synthetic‑based drilling fluid systems. O-WET DRIL is engineered to solve common field issues including barite sag, solid‑particle flocculation and emulsion destabilization caused by water‑wet solids.

O-WET DRIL forms stable chemical bonds on barite and drill‑solid surfaces, converting hydrophilic solid‑phase surfaces to lipophilic surfaces to maintain solid‑phase suspension. Unlike many competing additives that trigger unwanted viscosity rise, O-WET DRIL suppresses mud coalescence with minimal increase of apparent viscosity.

Highlights

Chemical‑bonding surface modification for solid particles, delivers better performance than conventional physical‑adsorption wetting reversal agents

Converts hydrophilic solids into lipophilic surfaces, prevents particle sedimentation and barite sag

Restrains particle aggregation and flocculation, preserves emulsion stability and avoids oil‑mud coalescence

Low risk of excessive apparent viscosity buildup, creates little rheology burden for high‑density mud

Improves pumpability of high‑density mud systems, reduces pumping resistance during field circulation

Reduces viscosity and gel strength upon water‑influx contamination, restores rheology performance of polluted oil‑based mud

Technical Specifications

How It Works

Unlike traditional wetting reversal additives that rely on physical adsorption, Millennium Energy O-WET DRIL modifies particle surfaces through chemical bonding. When added into oil‑based mud, active molecules anchor to barite, weighting materials and drill‑cutting surfaces and turn hydrophilic solid‑surfaces lipophilic.

This chemical‑bond mechanism suppresses flocculation arising from water‑wet solids and prevents sharp viscosity spikes, achieving stable suspension of weighting solids. Full thermal‑aging lab data will be supplemented in formal release documents.

Applications & Recommended Treatment

As a general‑purpose OBM additive, O-WET DRIL works for diesel‑oil mud, mineral‑oil mud and synthetic‑base invert‑emulsion drilling fluids. It supports both organoclay‑free and organoclay‑containing mud systems and performs well for low‑shear, high‑density oil‑based drilling fluid systems. It is highly applicable for offshore drilling encountering below challenges: High‑temperature downhole working conditions; Long circulation time of drilling fluids; Strict fluid contamination‑control requirements.

Core Application & Problem‑solving Capabilities

Surface wetting modification for barite, weighting agents and drill cuttings

Enhance oil‑based mud anti‑contamination capacity for effective oil‑mud contamination management

Reduce contamination risks during displacement from water‑based mud to oil‑based mud

Typical treating scenario:

water‑wet solids contamination caused by formation water influx. Apply O-WET DRIL immediately once graininess texture, barite sag or particle flocculation is observed. For oil‑based mud contaminated by water influx, O-WET DRIL helps lower system viscosity and gel strength.

Recommended Dosage:

0.5‑1.0 vol‑% based on total mud volume. Final application rate shall be defined through laboratory pilot testing prior to field deployment.

FAQ

Procurement Trust Information

Please contact our sales department for sample application, quotation, formal MOQ confirmation and document delivery.

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