Sanjel Energy Services launches ECObase, an innovative reduced carbon cement blend
Sanjel Energy Services delivers industry leading oil well cementing services in some of the most challenging plays in the Western Canadian Sedimentary Basin.
Our reduced carbon ECObase cement blends deliver higher Environmental, Social and Governance (ESG) standards in our cementing process, minimizing the impact of our operations on the environment while maintaining the performance and productivity of the wells being treated.
Areas of the Montney are prone to Surface Casing Vent Flows (SCVFs) either before fracturing occurs, or post fracturing due to mechanical stresses.
Cemented completions are also very popular in the Montney formation, this requires a cement design that can deliver great isolation along the lateral.
EXPANDOmix is a premium cement blend designed to meet all performance criteria for preventing SCVFs linked to cement performance.
ECOprime is a proven lateral cement proving superior isolation along the Montney shale formation.
ECOprime low carbon cement has a balance of optimum compressive strength and enough ductility to withstand the harsh stresses of cyclic fracturing pressures.
In fully cemented monobore productions, the cement column must be lightened up to ensure the well will not incur slurry losses to the formation due to increased hydrostatic pressures straining weak formations.
ECOsuperlitemix /SUPERLITEmix systems can be tailored to optimize density and rheology to lower hydrostatic pressure and equivalent circulating density promoting cement returns while still exhibiting good cement properties to withstand hydraulic fracturing stresses.
Steam stimulation techniques create unique and damaging stresses on the casing and cement sheath that could lead to a loss of well integrity.
ECOproteus cement blends have engineered properties to withstand thermal stresses by having higher tensile strengths and more flexibility all with a lower carbon footprint than traditional thermal cement systems.
Shallow gas bearing formations require a gas tight, low density slurry to cement monobore production strings.
Depending on the type of well both PRODUCTIONmix and EXPANDOmix PRO systems can be utilized to reduce or eliminate gas migrations that occur both before and after fracturing the well.
Wells in this region are prone to gas migration due to over pressurized zones near surface that can migrate in the surface casing annulus.
SURFACEmix options are designed to prevent gas migration by limiting critical intervals, increasing viscosity and introducing expansion into surface cement blends.
Shallow zones that are prone to gas migration and surface casing vent flows require a value orientated blend that economically meets the needs for cost and cement performance.
PRODUCTIONmix blends offer mid-density slurry options that effectively combat gas intrusion, withstand fracturing stresses and have successfully shown good cement returns to surface. These solutions deliver high value in this competitive economic play.
Bakken wells require combinations that provide zonal isolation in the producing zone that see fracturing stresses and a competent lead cement that gains cement returns to surface and resists any immediate gas flow into the column during the setting process.
Lead cements in the ECOlite family can be successfully combined with PRODUCTIONmix tail cements to create an effective cement sheath. This synergistic pairing meets all the well needs, economically and technically, delivering more profitable wells.
Horn River’s high temperature wells have wide temperature gradients over short vertical intervals, requiring localized solutions.
ECOlite lead cement systems combine low density, low rheology systems to effectively cover the vertical section of the well, minimizing issues due to slurry density. ECOlite systems contain reactive cementing materials that can be accurately retarded and placed along with accelerators to build strength uphole in cooler conditions.
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