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STIMULATION

Chemical Stimulation Technology

Chemical Stimulation Technology

Halliburtons SandStimSM

acidizing fluid service uses a chelant-based fluid system for stimulating sandstone formations. Te

SandStim fluid system provides a safer and simpler HF acidizing

fluid than traditional HF acid blends. Te service is specially

designed to be able to be used in high temperature formations,

wells that cannot be treated with HCl-based HF fluids, or wells with

a high or uncertain carbonate content.

SandStim service is a better acidizing fluid system in that it:

Is a simpler system; SandStim service uses less preush stages

and minimizes blend components

Minimizes potential damage when stimulating formations of

uncertain mineralogy

Has less risk of deconsolidating friable formations

Has superior complexing capacity

Can be used in a wide temperature range (120 F to 350 F)

Can be used in wells with higher carbonate concentrations;

recommended to use with formations over 5%

Has lower HSE risk than traditional HF acid blends

Less corrosive than traditional HF acid blends

Simpler and Easier to Use HF Acid System

SandStim service uses a fluid system that requires fewer preflush

stages and fewer blend components than traditional HF acid

blends. Te system contains readily biodegradable components

and is easier to work with operationally. By reducing the number

of preflush stages, significant time and cost savings can be achieved

using SandStim service.

SandStim service is designed for sandstone or mixed carbonate/

sandstone formations. Because of the reduced risk of rock

deconsolidation and damage to the formation, SandStim can be

used in many more applications, wells where HCl-based HF blends

should be avoided. Also, because SandStim service can be used in

wells with a high carbonate content, the service is forgiving when

treating uncertain mineralogy. Tis makes treatment design much

simpler and easier.

SandStimSMAcidizing Chelating Fluid ServiceEnables More Effective Acid Stimulation of Sandstone Formations

Image above shows the acid etching properties of SandStimsystem.Te service provides the per formance of traditional HF acid blends,

but in a simpler and safer formulation.

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STIMULATION

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More Versatility and Better Performance

SandStim service has better stabilizing properties than

conventional acids and minimized emulsion and sludge tendencies.

Te system can be used to remove damage from a formation with

less risk of rock deconsolidation compared to highly acidic uids,

like high-strength HCl-based HF blends. SandStim service is able

to withstand high bottomhole temperatures, up to 350 F.

Te system is designed for sandstone formations and can be used

in matrix stimulation, removing damage caused by carbonates,

drilling uids, clays and other aluminosilicates from gravel-pack

completions, and lter-cake removal applications.

Tis image shows extensive matrix damage as a result of fluorosilicate

precipitation. SandStim service can remove damage in the formation

with less risk of further damage or rock deconsolidation.

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For more information about how SandStimSMservice can help stimulate your sandstone formations,contact your local Halliburton representative or email stimulation@halliburton.com.