Gilsonite in Drilling Fluid Loss Control

Drilling Fluid Loss Control

One of the important features of Gilsonite is it’s softening point temperature, Which has made Gilsonite effective in the following cases:

1- In oil-base muds, it is used as a fluid loss control agent

The addition of Gilsonite to oil well cements reduces slurry weight without loss of compression strength and acts as an effective bridging and plugging agent to seal fractures in weak formations while cementing.

2- In water-base muds, it is used as a shale-stabilizing additive and is difficult to evaluate unless tested at or above its softening point.

It helps minimize hole washout by stabilizing troublesome shales, and seals off highly permeable sands while reducing torque and drag

• As an integral component of premium drilling fluid products.
• The dissolved Gilsonite increases drilling fluid viscosity, providing lubrication, and together with the sealing off and stabilization of problem rock around the well bore, helps prevent the drill pipe from getting stuck in well.

Gilsonite prevents 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 bottom hole temperatures.

Proven to strengthen the wellbore
HP/HT wells, shales and under pressured zones require specialized drilling fluids and wellbore-strengthening techniques. Adding Gilsonite to an OBM, SBM or WBM 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

The most effective additive to prevent differential sticking
Gilsonite minimizes the occurrence 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.

Gilsonite is the only drilling fluid additive that provides all of these benefits:

• Controls fluid loss and seepage
• Stabilizes shales
• Prevents lost circulation
• Strengthens the wellbore to increase wellbore stability
• Minimizes differential sticking
• Promotes effective filter cake development
• Performs in oil- and water-based drilling muds
• Performs in HP/HT environments
• Minimizes HSE risks

HEALTH, SAFETY AND ENVIRONMENTAL ADVANTAGES

Naturally occurring Gilsonite has significant health advantages over synthetic products. Gilsonite is:

• Non-toxic (unlike coal or fly ash)
• Non-carcinogenic
• Non-mutagenic

Packing of Gilsonite in lump and powder form

For Drilling Fluid Loss Control

FLC in lump form like rock packed in 500~1000 kg jumbo bag.

FLC 200 mesh packed in 500~1000 kg jumbo bag.

Drilling fluid additive 300 mesh packed in 500~1000 kg jumbo bag.

Drilling fluid additive 30-40 mesh packed in 500~1000 kg jumbo bag.

Drilling fluid additive 100 mesh packed in 500~1000 kg jumbo bag.

Drilling fluid additive 300 mesh packed in 25 kg pp bag.

Drilling fluid additive 200 mesh packed 25 kg multi-paper bag.

Drilling fluid additive 200 mesh packed 50 lbs. multi-paper bag.

Drilling fluid additive 30-40 mesh packed pp bag on pallet.

Oil & Gas

Gilsonite In Oil & Gas

In the oil and gas industry, drilling fluids or liquids perform a diversity of operations that influence the drilling rapidity, efficiency, safety, and the cost of drilling operators. An important characteristic of gilsonite that makes it noteworthy for drilling fluid usages is its softening-point temperature. There are many types of drilling fluid systems available such as water-base muds, oil-base muds, stable foam muds, air, or gas base muds from which the right system may be chosen. In water-based muds, it is used as a shale-stabilizing additive and is difficult to evaluate unless tested at or above its softening point. In oil-based muds, it is used as a fluid-loss control agent.

With unmatched benefits in cementing and drilling fluids, Gilsonite is proven under pressure.
With a unique blend of strength, flexibility, bonding, and high-temperature capability, Gilsonite adds properties that increase performance in cementing and drilling fluids in a way no other single additive can.

Gilsonite is used in drilling mud fluids and oil well cementing. Gilsonite, in a range of softening points and particle sizes, is a standard ingredient in oil-based drilling muds used in shales and other difficult geological formations. The addition of specially-treated Gilsonite to water-based drilling fluids helps minimize hole washout by stabilizing troublesome shales and seals off highly permeable sands while reducing torque and drag.  The addition of Gilsonite to oil well cement reduces slurry weight without loss of compressive strength and acts as an effective bridging and plugging agent to seal fractures in weak formations while cementing.  Also, Gilsonite use in Mud drilling according to FLC ” Filtrate Loss Control ” or  ” Fluid Loss Control ” in oil-base mud.

Drilling fluids features of Gilsonite in Oil & Gas

• Provides superior shale stabilization
• Prevents differential sticking
• Reduces or eliminates lost circulation
• Provides wellbore strengthening matrix

Cementing features

• Strengthens cement bonds to shales and sands
• Reduces cement slurry density
• Prevents lost circulation
• Supports compressive strength development