OBM Additives
Shale Inhibitors
Product introduction
▲ Provides excellent shale inhibition
▲ Limits cuttings dispersion
▲ Reduces accretion potential, minimizing bit and BHA balling
▲ Ensures environmental acceptability for both on shore and onshore applications
UBDrill-131
▼ UBDrill-131 shale inhibitor is a low-molecular-weight polymer blended liquid containing povidone &polyamine derivative to provide superior inhibition of reactive clay and reduce swelling of sensitive shales exposed to water-based drilling fluids.
▼ UBDrill-131 is the primary shale inhibitor of polyamine high-performance water-based drilling fluid system. It acts as a clay hydration suppressant by intercalating and reducing the space between clay platelets so that water molecules will not penetrate and cause shale swelling.
▼ UBDrill-131 can also flocculate any dispersed clays or colloidal particles and aids their removal by solids control equipment to achieve shear-thinning properties. UBDrill-131 is suitable in fresh water, seawater and monovalent brines up to 300°F.
UBDrill-132
▼ UBDrill-132 shale inhibitor is a blended liquid containing polypropylene glycol & poly ether amine acetate to provide superior inhibition of reactive clay and reduce swelling of sensitive shales exposed to water-based drilling fluids.
▼ UBDrill-132 is the primary shale inhibitor of polypropylene glycol high-performance water-based drilling fluid system. It acts as a clay hydration suppressant by intercalating and reducing the space between clay platelets so that water molecules will not penetrate and cause shale swelling.
▼ UBDrill-132 can undergo ion exchange reactions with metal ions such as sodium or potassium on the surface of clay particles and inhibiting the hydration and expansion of clay.
Technical Index
# |
UBDrill-131 |
UBDrill-132 |
Appearance |
Yellow to light yellow viscous liquid |
Colorless to Light Yellow |
Specific gravity |
1.03 |
1.0～1.10 |
|
pH |
9.0-9.5 |
5-10 |
Applications/Functions
▼ Provides excellent shale inhibition and maximized cuttings integrity
▼ Reduces accretion potential and consequently bit balling
▼ Flocculates any dispersed clays or colloidal particles and aids their removal by solids control equipment
▼ Minimizes dilution rates.
Advantages
▲ 131
✔ Temperature stable up to 300°F but may achieve higher if use oxygen scavengers
✔ Highly effective in KCl/Polymer water-based drilling fluids ✔ Environmentally acceptable both onshore and offshore applications
▲ 132
✔ Temperature stable up to 300°F but may achieve higher if use oxygen scavengers
✔ Environmentally acceptable both onshore and offshore applications
Recommended Handling
▶ 131:A typical treatment range is 1.5-3% by volume;
▶ Use normal precautions for employee protection when handling chemical products referring to Safety Data sheet.
▶ 132:A typical treatment range is 1.0-2.0% by volume.
Packaging and Storage
55GAL DRUM, 275GAL IBC totes.
the Right Shale InhibitorHow to choose?
Selecting the right shale inhibitor involves balancing drilling objectives, geological conditions, drilling fluid systems, and operational constraints. Here are the specific steps and considerations:
1. Define Drilling Objectives
2. Assess Geological Conditions
3. Match the Drilling Fluid System
....More pls click our Blogs.
Differences in Shale Inhibitors Across Operations
▲ Drilling: Focuses on real-time shale inhibition and ROP enhancement, requiring potent, easily dispersible inhibitors (e.g., UltraHib Plus).
▲ Cementing: Targets cement slurry filtrate effects on shale, needing short-term, efficient inhibitors (e.g., amines or polymers).
▲ Workover: Prevents fluid invasion into shale during temporary operations, requiring low-invasion, removable inhibitors (e.g., polyamines).
To distinguish shale inhibitors, evaluate their chemical makeup, mechanisms, and properties. For selection, consider drilling goals, geological conditions, fluid systems, and economics, supported by testing. Our products suit high-performance needs, and eco-friendly meet regulatory demands. Tailor the choice to specific well conditions for optimal inhibition and operational efficiency.
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