For the proppant fracturing, in addition to the cost-effective borate crosslinked guar fracturing fluid (OPTiFrac) for most hydraulic fracturing applications, OPT R&D and engineering team has also developed and commercialized N2 foam fracturing fluid (E-Frac) to enhance production in fracturing low pressure or water sensitive reservoirs, the dual-crosslinked CMHPG fracturing fluid (EZFrac) in fracturing high temperature reservoirs up to 375℉, and surfactant-based fracturing fluids (SurFrac) to reduce friction and proppant pack damage in order to maximize fracturing treatment efficiency.
For unconventional especially shale gas or oil fracturing, OPT slick water and self-crosslinked fluid systems (HVFR up to 300℉) together with superior flowback surfactant can help our clients unlock their unconventional resources both effectively and economically.
For acid stimulation of carbonate reservoirs, in addition to regular mineral acids, organic acids and polymeric gelled acids (SGA), high-performance emulsified acid (EAT) and surfactant-based viscoelastic acid (CAT) have been developed to improve worm-holing process and maximize post-treatment production in stimulation of carbonate reservoirs up to 350℉.
In addition to regular mud acids and organic mud acids for sandstone acidizing, deep penetration acids (DPA) and high temperature (up to 400℉) chelant-based sandstone acids (EZStim) have been developed and applied in stimulation treatment of sensitive and ultra-high temperature sandstone formations. In order to maximize post-treatment oil and gas production, viscoelastic diverting acids (MGA) are generally used together with main treatment acids in acidizing high water-cut sandstone reservoirs.
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UniFrac® - Guar Replacement Fracturing Fluids
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UniFrac fluids are often utilized whenever normal crosslinked guar and derivatives are not readily available. UniFrac fluid is composed of metal crosslinked polyacrylamides.
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OPTiFrac® - Guar Borate Crosslinked Fracturing Fluids
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OPTiFrac is one of the most robust and cost-effective water-based fracturing fluid systems in oilfield service industry.
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SGA® - Self-diverting Gelled Acid
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SGA fluids consist of HCl mixed with a gelling agent and a pH sensitive crosslinker. SGA fluids can block the growth of wormholes by temporarily forming a gel barrier (crosslinked gel) in the wormhole while the acid reacts with carbonate rocks, thereby reducing the loss of fluid from the wormholes.
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SurFrac® - Surfactant Based Fracturing Fluids
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Surfactant molecules tend to form larger micelles with viscoelastic properties. Optimal fracturing properties can be achieved by utilizing surfactant chemical technologies.
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EZStim® - High Temperature Sandstone Acids
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EZStim is a chelant based fluid, which is designed for acidizing high temperature sandstones (200℉ to 375℉ with total carbonate and clay content of >10%wt.
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CAT® - Carbonate Acidizing Technology
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Selection of treatment fluids and uniform coverage of the fluids over the target zones are crucial for carbonate stimulation.The non-damaging viscoelastic surfactant acidizing fluid technology is engineeringly designed for carbonate acidizing and acid fracturing treatments.
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DPA ® - Deep Penetration Acids
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DPA technology is engineering designed for acidizing sandstone containing high silt and clays and HCl sensitive minerals, such as zeolite and chlorite, especially at high reservoir temperatures.
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EAT® - Emulsified Acid Technology
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Emulsified Acid Technology (EAT) is a viscous, highly retarded, and concentrated acid system designed for matrix stimulation and acid fracturing of carbonate formations.
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E-Frac® - N2 Foamed Fracturing Fluids
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The E-Frac fluids are composed of a crosslinked polymer solution (external or continuous phase) surrounding a gas (internal, dispersed or noncontinuous phase) and a surfactant (foaming agent).
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EZFrac® - High Temperature Zirconium Crosslinked Fracturing Fluids
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EZFrac is a zirconium-crosslinked water-based fracturing fluids composed of carboxymethyl hydroxypropyl guar (CMHPG) as the gelling agent.
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MGA® - Multi-functional Gelled Acid
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Diverting treatment fluids to target zones and increasing oil production rate are crucial in acid stimulation of complex sandstone formations.
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HVFR® - High Viscosity Friction Reducer
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Friction Reducing Agent KHF027LV is a slurry of an anionic high molecular weight polyacrylamides. Conventional Friction Reducers (FR) lower the pumping friction when the fluid is pumped at a high rate.
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