American Gilsonite

Service Companies Cut Drilling Fluid Costs without Losing Performance

HOUSTON, TEXAS, November 26, 2014 – With industry-wide pressure to reduce expenditures, many service companies have found it cost-effective to reduce the total number of drilling fluid additives by incorporating a premium multi-purpose additive. American Gilsonite® provides a range of important benefits while also producing cost savings of more than 80%.

With its unique chemical properties and physical characteristics, Gilsonite is scientifically proven to improve wellbore stability, plug micro-fractures, and bond and seal all types of formations. Gilsonite is the only drilling fluid additive that provides all of these benefits:

Controls fluid loss
Stabilizes shales
Prevents lost circulation
Strengthens the wellbore
Minimizes differential sticking
Performs in oil- and water-based drilling muds
Performs in HP/HT environments
Minimizes HSE risks

Significant cost advantages
Compared to alternative products, Gilsonite offers comparable or superior performance at a much lower cost.

In water-based mud (WBM) applications, Gilsonite’s performance compares favorably with sulfonated asphalts while costing 40% less.

Gilsonite cost savings compared to sulfonated asphalts

In HP/HT environments using synthetic-based mud (SBM), Gilsonite provides a cost reduction of more than 80% compared to premium co-polymer, while the high softening point of Gilsonite also results in a 45% reduction in fluid loss.

Gilsonite cost savings compared to premium co-polymer

Proven performance advantages
Laboratory testing and years of field use have proven that Gilsonite offers multiple performance benefits over alternative products.

Gilsonite performance advantages over alternative products

Unique properties control fluid loss and seepage

Gilsonite has unique bonding and plugging properties that prevent formation damage. Gilsonite forms a physical and chemical bond with permeable formations, creating an effective seal to prevent the passage of drilling fluid. By uniquely functioning as both a malleable and solid plugging agent, Gilsonite controls fluid loss and seepage, prevents lost circulation, and protects reactive and low-reactive shale surfaces, even at elevated bottomhole temperatures.

Gilsonite prevents lost circulation
Gilsonite has been proven to bond and seal any type of formation. It prevents lost circulation when alone or in combination to enhance the performance of other lost circulation materials (LCM).

Gilsonite seals formations to prevent lost circulation

Proven to strengthen the wellbore

The demanding conditions of HP/HT wells, shales and underpressured zones require specialized drilling fluids and wellbore-strengthening techniques to preserve zonal isolation. Adding Gilsonite strengthens the well by:

Reducing pore pressure transmission and sealing micro-fractures in shale and low-porosity sands
Keeping interbedding formations intact
Developing effective filter cake
Providing a “smear effect” that creates a continuous protective sealant along the wellbore wall

An effective additive to prevent differential sticking

Gilsonite minimizes the occurrence, expense and downtime of stuck pipe and stuck logging tools by thoroughly sealing permeable formations – even in zones with a highly overbalanced pressure differential – and improving filter cake lubricity.

Multifunctional Gilsonite reduces costs
Gilsonite is a premium product that provides value from numerous benefits that improve drilling fluid performance as it also reduces overall costs by requiring fewer additives.

A multifunctional additive reduces total costs




What is Gilsonite? Find out what makes it naturally better.

Contact Us - American Gilsonite Company