Borehole, Shale Stabilizers

Drilling practices and the physical & chemical properties of drilling fluids can either enhance or erode borehole stability. Our borehole stabilizers serve as "preventive medicines" that help operators avoid the difficult and expensive tasks associated with remediating an unstable formation.

For data sheets, products and related information please refer to the links at the right of this page.

Borehole, Shale Stabilizers

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Summary Summary GEM™ CP - Product Data Sheet
GEM CP polyalkylene glycol is used in water-based drilling fluids to help improve lubricity and shale stability. It is recommended for use in potassium- and sodium-based salt (2-15 percent by weight) systems in areas where highly reactive clays are anticipated.
Summary Summary GEM™ GP - Product Data Sheet
GEM GP polyalkylene glycol is used in water-based drilling fluids to help improve lubricity and shale stability. It is recommended for use in potassium and sodium based salt (5-22 percent by weight) systems in areas where low to medium reactive clays are anticipated.
Summary Summary EZ-MUD® - Product Data Sheet
EZ-MUD®, partially hydrolyzed polyacrylamide/polyacrylate (PHPA) copolymer emulsion, is used to stabilize reactive clay and shale formations. EZ-MUD acts as a shale stabilizer by adsorbing onto cuttings and clays on the borehole wall, preventing dispersion. Because of its high molecular weight, EZ-MUD quickly viscosifies with increased concentrations.
Summary Summary EZ-MUD® GOLD - Product Data Sheet
EZ-MUD® GOLD, clay and shale stabilizer, provides inhibition of clay and shale formations in water-based drilling fluids without substantially increasing viscosity. EZ-MUD GOLD, when added to a QUIK-GEL® or BORE-GEL® slurry, yields an inhibitive drilling fluid system while maintaining manageable and effective fluid properties. The unique beaded structure of EZ-MUD GOLD allows the material to be mixed easily at minimal shear thereby eliminating the need for liquid emulsions.
Summary Summary EZ-MUD® DP - Product Data Sheet
EZ-MUD® DP partially hydrolyzed polyacrylamide/polyacrylate (PHPA) copolymer dry powder is used to stabilize reactive clays and shale formations. EZ-MUD DP acts as a shale stabilizer by inhibiting cuttings and clays in the borehole wall, preventing dispersion. Because of its high molecular weight, EZ-MUD DP quickly viscosifies with increased concentrations.
Summary Summary GEM GPE - Product Data Sheet
GEM™ GPE shale stabilizer is a blend of polyglycols used in water-based drilling fluids to help improve shale stability and lubricity. Recommended for potassium and sodium salt based fluids but can be used in fresh water non-dispersed fluids when low to medium reactive clays and shale are anticipated.
Summary Summary INHIBI-TAR™ - Product Data Sheet
INHIBI-TAR™ rapid-acting blend of solvents, surfactants and inorganic salts is designed to reduce borehole stability problems while drilling tar.
Summary Summary BORE-HIB® Shale Stabilizer - Product Data Sheet
BORE-HIB® shale stabilizer is a liquid blend that can provide inhibition and stabilization of highly reactive clays. It helps to seal pores and micro-fractures in the formation, reduce bit-balling and accretion tendencies, and reduce corrosion. BORE-HIB shale stabilizer has no hydrocarbons or synthetic oils and can be used in applications up to 325°F (163°C). BORE-HIB shale stabilizer is incompatible with divalent ions. If used with sea water, hardness should be treated out prior product addition or dilution.
Summary Summary BaraSure™ W-546 Shale Stabilizer - Product Data Sheet
BaraSure™ W-546 (formerly BDF™-546) shale stabilizer is a mixed dry product that incorporates two shale stabilizing agents to provide superior clay inhibition at a very low concentration. BaraSure W-546 shale stabilizer is designed to be used in SHALEDRIL® fluid systems utilized for drilling reactive clay and shale. BaraSure W-546 shale stabilizer can be used in low solids non-dispersed (LSND) and low clay SHALEDRIL systems, but is incompatible with divalent brines. If used with sea water, or brackish make-up water, total hardness should be lowered below 600 ppm prior to the introduction of BaraSure W-546 shale stabilizer.
Summary Summary BaraSure™ W-674 Shale Stabilizer - Product Data Sheet
BaraSure™ W-674 (formerly BDF™-674) shale stabilizer is a cationic organic multivalent clay inhibitor for polymer-based drilling, workover and completion fluids. BaraSure W-674 is completely water soluble and environmentally acceptable and may be used in freshwater, seawater, low-solids or weighted systems.
Summary Summary BaraSure™ W-590 Shale Stabilizer - Product Data Sheet
BaraSure™ W-590 (formerly BDF™-590) shale stabilizer is used to inhibit the hydration of formations containing reactive clays and shales. It is effective in the majority of water-based drilling fluids, from freshwater to high salinity at temperatures up to 400°F (204°C). The optimal mode of use of the BaraSure W-590 shale stabilizer is - pH 7 - 10, but it is also effective in the lime muds. BaraSure W-590 shale stabilizer helps reduce bit-balling and improves drill solids removal. When using the BaraSure W-590 shale stabilizer together with thickeners based on bentonite, the bentonite should be pre-hydrated before it’s added into the drilling mud. BaraSure W-590 shale stabilizer can effectively be used instead of potassium chloride in drilling fluids for production intervals.
Summary Summary BaraFLC® W-490 Shale Stabilizer/Filtration Control Additive - Product Data Sheet
BaraFLC® W-490 (formerly BDF™-490) shale stabilizer / filtration control additive is a sulfonated asphalt, partially soluble in water and oil, and can be used in water and oil-based fluids where it functions as a shale stabilizer, cuttings dispersion inhibitor and contributes to high temperature fluid loss control. It is stable to many normal drilling fluid contaminants, operates at a broad pH range and is suitable for use up to 340°F (170°C). BaraFLC W-490 shale stabilizer / filtration control additive helps to form a thin yet tough wall cake and the small particles can effectively plug micro-fractures.
Summary Summary BaraFLC®-903 Filtration Control Additive - Product Data Sheet
BaraFLC®-903 (formerly BDF™-903) filtration control additive is sulfonated asphalt and used primarily in both water-based fluids and standard invert emulsion fluids. BaraFLC-903 filtration control additive helps to form a thin and tough filter cake where the small hydrophobic particles can effectively bridge micro-fractures.
Summary Summary BDF™-662 Shale Stabilizer - Product Data Sheet
BDF™-662 Shale Stabilizer
Summary Summary BORE-PLUS™ Suspension Agent - Product Data Sheet
BORE-PLUS™ acrylate copolymer additive is used in water-based drilling fluids as a filtration control agent.
Summary Summary BARO-TROL® PLUS - Product Data Sheet
BARO-TROL PLUS® fine-grind, blended hydrocarbon powder is partially dispersible in water
Summary Summary BARACAT® - Product Data Sheet
BARACAT® high-charge density cationic polymer helps provide shale and clay inhibition in CAT-I cationic, water-based drilling fluid systems. The positively charged polymer readily adsorbs opposite negative charges on shales and clays, neutralizing the charge imbalance. The net result reduces the water demand and hydration rates of reactive formations.
Summary Summary CLAY GRABBER® Shale Stabilizer - Product Data Sheet
CLAY GRABBER® is a high molecular weight, non-ionic 35-40% active liquid polymer supplied as a low viscosity emulsion for use in water-based drilling fluids.
Summary Summary BaraSure™ W-499 Shale Stabilizer - Product Data Sheet
BaraSure™ W-499 (formerly BDF™-499) shale stabilizer is a liquid a blend of amine salts used in water based drilling fluids, formation treatments and work-overs. It is suitable for most polymer and clay free water based fluid systems. BaraSure W-499 shale stabilizer should not be used with fluids containing clay based viscosifiers. BaraSure W-499 shale stabilizer inhibits clay and shale hydration and is a high efficiency stabilizer for smectite, illite, shale and mixed layer clay/shale minerals.
Summary Summary BXR-L™ Shale Stabilizer - Product Data Sheet
BXR-L™ sulfonated asphalt and hydrocarbon resin (asphaltite) is dispersed in glycerol, polyglycerols, and polypropylene glycol.
Summary Summary CLAY-SYNC™ II™ Shale Stabilizer - Product Data Sheet
CLAY-SYNC™ II™ shale stabilizer is a low molecular weight, non-ionic 100% active dry polymer for use as a clay inhibitor in water-based drilling fluids.
Summary Summary CLAYSEAL® PLUS™ Shale Stabilizer - Product Data Sheet
CLAYSEAL® PLUS™, a low molecular weight amphoteric material, reduces dispersion and hydration of reactive clays and shale formations.
Summary Summary SHALEDRIL® F Water-Based Fluid Proves Successful on Troublesome Fayetteville Shale
The Marrowian shale that lies above the Fayetteville Shale in Arkansas is highly reactive and prone to fracturing and delamination. It is typically drilled with an Invert Emulsion fluid, which reduces the chance of swelling of this formation.
Summary Summary PERFORMATROL® - Product Data Sheet
PERFORMATROL shale inhibitor is used with the PERFORMADRIL® system.
Summary Summary CLAYSEAL® PLUS™ Shale Stabilizer Saves Operator US$150,000
Solution helps minimize swelling clay, shorten trip time.
Summary Summary Inhibitive Seawater-Based Fluid Saves US$130k on Offshore Well
36 hours saved in rig time
Summary Summary BaraSure™ W-674 and CLAY GRABBER® Shale Stabilizers Provide Reliable Inhibition in Two Reactive Intervals
Provide reliable inhibition in two reactive intervals in formations known to cause wellbore instability and drilling delays related to reactive clay
Summary Summary BaraSure™ W-674 Shale Stabilizer Stops Clay Swelling and High Torque in Oil Sand Lateral
High risk of swelling clays. Excessive torque leading to stuck pipe. Oil sand accretion on the BHA
Summary Summary Custom Water-Based Fluid Achieves New Drilling Record in Iraq’s Rumaila Field
Customized Fluid Systems saves 6.4 days of operation
Summary Summary CLAYSEAL® PLUS Shale Stabilizer Helps Operator Save Helps Operator Save Four Days of Rig Time and Almost USD 200,000
The first horizontal well in Argentina’s Diadema field targeted the Upper Garnet Zone (UGZ) formation, a highly permeable sandstone with interbedded clay stringers. A water-based mud (WBM) formulated with potassium formate brine was selected to drill this reservoir. The potassium formate concentration was approximately 10 l/m3, which was expected to help inhibit reactive clays while minimizing formation damage.
Summary Summary High-Performance WBM with CLAYSEAL® PLUS Shale Stabilizer Eliminates Need for OBM for Monobores in Shale Play
An engineered WBM containing CLAYSEAL® PLUS shale stabilizer and an effective lubricant helped deliver performance on par with OBM without the environmental impact.
Summary Summary BaraSure™ W-674 Shale Stabilizer Enables Operator to Save Eight Days of Drilling Time in Highly Reactive Clays
Reactive clays in the intermediate interval caused slow drilling rates and high fluid treatment costs
Summary Summary Customized Fluid System Cuts Intermediate Casing Costs in Mississippi Lime Field
In the Mississippi Lime field, the curve section of the wells entail drilling through a reactive shale where swelling and caving can cause hole stability problems. in previous wells, the 7" casing has always been set in the top of the lime through the curve to provide sufficient stability for running a 4 ½-inch production liner. In this case, the operator requested a solution that would enable the Mississippi Lime to be drilled without setting the 7-inch intermediate casing.
Summary Summary US California: BARO-TROL® PLUS and CLAYSEAL® PLUS Shale Stabilizers Help Combat Sloughing Shale, Stuck Pipe
As with several other wells in the area, operators on this well encountered issues with sloughing shale, tight hole, and packing off. The usual approach to drilling through these reactive formations is to use oil-based mud (OBM) due to its ability to inhibit the shale, thus delivering successful drilling operations. However, if an OBM is used to drill these wells, a very strong emulsion is often formed that restricts production.
Summary Summary US Wyoming: Baroid’s CLAYSEAL® Shale Stabilizer Provides Excellent Wellbore Stability on Problematic Well
The DJ Basin located in Laramie County, Wyoming is known for its reactive and unstable shales. Preliminary research of offset data indicated that reactive clays may not present a problem in the upper hole section, but issues were anticipated as drilling progressed through the interval. Contrary to the data, while attempting to drill to a total depth of 11,804 ft, an operator encountered excessive torque and drag in the upper vertical section, and also encountered a prolonged open hole due to operational issues.
Summary Summary Borehole, Shale Stabilizers
Borehole stability reflects the physical and chemical characteristics of a drilling fluid, as well as drilling practices. Since stabilizing an unstable formation can be difficult and expensive, prevention is more cost effective than remediation
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