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|
|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
In water-based mud (WBM) applications, Gilsonite’s performance compares favorably with sulfonated asphalts while costing 40% less.
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.
Proven performance advantages
Laboratory testing and years of field use have proven that Gilsonite offers multiple performance benefits 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
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