OILFIELD Chemicals

Microfume 102 DM is a densified silica fume that improves mechanical properties (compressive strength) and durability (via permeability decrease), with ease of handling. Microfume 102 DM is an extender for lightweight cements and a compressive-strength enhancer for low-temperature, lightweight cements.

Microfume 104 OG is a semi-densified, constant pH, amorphous light grey powder that improves compressive strengths and durability (via permeability decrease). It “flows” better than its fully densified counterparts and has a high Pozzolanic Activity Index (PAI). MicroFume 104 OG is an extender for lightweight cements and used in conjunction with or instead of conventional pozz.

Microfume 106 UM is an undensified silica fume that improves the mechanical properties (compressive strength) and durability (via permeability decrease). Microfume 106 UM can be an extender for lightweight cements and a compressive strength enhancer for low-temperature, lightweight cements. Lower water content and improved flowability with a higher PAI (Pozzolonic Activity Index) for improved compressive strength development in light weight slurries is a key feature of Microfume 106.

Riteks CSE-4 offers a higher Pozzolonic Activity Index (PAI) for improved compressive strength development for light weight slurries. Riteks CSE-4 reacts with free lime produced during hydration of cement and produces additional cementitious material for improved compressive development. Riteks CSE-4 also provides benefits such as extender properties & free water control, all at much reduced loadings than other pozzolans.

Riteks CSE-5 offers a higher Pozzolonic Activity Index (PAI) for improved compressive strength development for light weight slurries. Riteks CSE-5 reacts with free lime produced during hydration of cement and produces additional cementitious material for improved compressive development. Riteks CSE-5 also provides benefits such as extender properties & free water control, all at much reduced loadings than other pozzolans.

Riteks CSE-6 is high-reactivity metakaolin pozzolan produced by thermal
activation of high purity kaolin clay within a specific temperature range that meets or exceeds all of the specifications of ASTM C-618 Class N pozzolans.  Riteks CSE-6 reacts with free lime produced during hydration of cement and produces additional cementitious material.
Unlike other pozzolanic materials, CSE-6 was developed to maintain high
reactivity, ultrafine particle size distribution and product consistency.

Riteks RCD-2 is a highly effective dispersant in cement slurries to improve the flow properties of the slurry, reduce hydraulic horsepower requirements, and allow removal of the mixing water resulting in a more dense cement slurry. With the use of Riteks RCD-2, cement slurries can be tailored for specific well requirements providing optimum slurry characteristics for any down hole condition.

Features and Benefits

• Highly effective dispersant
• Performs over a broad pH range
• Low foaming
• Ensures high solids dispersions with low viscosities

Riteks RCD-3 is a highly effective water-soluble polymer dispersant used in normal to high density, low fluid loss slurries that can be easily pumped in turbulent flow. This dispersant was developed to improve performance characteristics in cement slurries for workability, and is highly effective in salt and salt-saturated slurries.

Features and Benefits

• Provides turbulent flow properties, improving mud cleanup and cement bonding
• Facilitates mixing of high-density, reduced-water slurries
• Reduces mixing and final slurry viscosity
• Provides less retardation than conventional dispersants, resulting in earlier strength development
• Inhibits viscosifying effects caused by some fluid loss and gas control additives
• Improves annular displacement, reducing cement contamination
• Improves the performance of gas control and fluid loss additives
• Improves bonding to the formation and pipe
• Compatible with virtually all API, ASTM, and pozzolan cements and most Riteks cement additives

Riteks RCD-4 provides superior dispersing power compared to conventional dispersants up to minimum 250°F (120°C). RCD-4 is a high-range water-reducing admixture powder utilizing superior polycarboxylate chemistry to achieve low and stable rheology at significantly lower dosage rates than with standard dispersants.

This chemistry also offer a very high salt tolerance up to 18% NaCl & widens the field of potential applications significantly. RCD-4 can show retarding properties, although is often used in CaCl2 accelerated cement slurries and aids in reducing shrinkage during accelerated cement set.

Features and Benefits

• Provides turbulent flow properties, improving mud cleanup, and cement bonding
• Facilitates mixing of high-density, reduces-water slurries
• Reduces mixing and final slurry viscosity
• Provides less retardation than conventional dispersants, resulting in earlier strength development
• Inhibits viscosifying effects caused by some fluid loss and gas control additives
• Improves annular displacement, reducing cement contaminiation
• Improves the performance of gas control and fluid loss additives
• Improves bonding to the formation and pipe
• Compatible with virtually all API, ASTM, and pozzolan cements and most Riteks cement additives

REX-HT is a post set expansion additive developed for use at temperatures above 170°F (76.7°C). REX-HT additive helps control microchannels, which provide a pathway for interzonal communication. The expansion provided by REX-HT additive develops as a function of temperature, which accelerates expansion.

Features and Benefits

• Performs well in areas with suspected micro channeling problems with minimal design and job execution problems
• Non-hazardous in normal working conditions

REX-LT Cement Additive is a chemical expansive additive developed for use at temperatures from 100° to 210°F (37°C to 99°C). REX-LT offers both In-Situ Expansion as well as Post Set Expansion with lower loading levels than traditional alternatives, and provides early strength development and shortens Static Gel Strength Time. Its expansion properties help to provide a better bond and shrinkage control prevents the possibility of channeling. REX-LT also has some very desirable secondary effects, including improvements in Fluid Loss and Free Fluid properties.

Features and Benefits

• Improved bonding and zonal isolation possible
• Helps prevent shrinkage and channeling
• Non-hazardous in normal working conditions
• Improved fluid loss numbers
• Slight gains in viscosity
• Shortening of total thickening time
• Lower free fluid

Riteks RFL-1 is a non-retarding low temperature fluid loss / gas migration additive designed to decrease the permeability of a cement slurry while increasing the overall durability and flexibility of the system. This additive is highly effective at exceptionally low loadings and works particularly well in lower temperature applications and small grind cements.

Riteks RFL-4 is a fluid loss additive that consistently  improves viscosity, water retention, and suspension. Lead Cements under 13 ppg commonly use Riteks RFL-4 which helps maintain rheological hierarchy in thin lightweight cement slurries.

Riteks RFL-4 is ideal for circulating long columns of cement slurry on primary casing jobs and for deep liner cementing. It helps fluidity maintenance, premature dehydration elimination, and annular bridging prevention. Most additives used in cementing are compatible with Riteks RFL-4 and provides good frictional properties during displacement.

Features and Benefits

• Controls fluid loss of cement from 80 to 360 F BHCT
• Offers better control of slurry downhole by helping eliminating premature dehydration
• Functions effectively in slurries containing up to 18% NaCl of 5% KCl
• Helps protect water sensitive shales and can reduce premature bridging in annuli, which may be caused by dehdration
• Can reduce slurry water losses, thus maintaining more consistent viscosities and circulating pressures
• Helps control gas leakage while cementing is setting
• Helps reduce premature dehydration in tubing and casing while perforations are squeezed

Riteks RFL-9 is a dispersing and retarding fluid loss additive for all API classes of cement. Riteks RFL-9 is an effective fluid loss additive in primary, remedial, and squeeze cementing, and can be used in bottom hole circulating temperatures (BHCT’s) between 60° and 300°F (15.5°and 149°C).

Features and Benefits

• Useful in primary and remedial cementing applications
• Can lower equivalent circulating density due to its dispersing nature
• Lengthens total thickening time
• Helps to promote bonding
• Can be blended in dry cement or pre-hydrated in the mix water
• Can alleviate horsepower requirements of surface equipment
• Works well in water sensitive formations
• Works well with most suspension and viscosifying products

RFL-70X is a cementing additive that controls flow and fluid loss properties at bottom-hole circulating temperatures up to 210°F (99°C). Typical loading levels of up to 1 percent is normally sufficient at temperatures between 75°F and 200°F (24°C to 93°C) to help reduce fluid loss to 50cc. At temperatures up to 350°F (177°C), this additive can also provide free water control, chemical resistance, shear bonding properties, and thermal shock reduction.

Features and Benefits

• Provides a slight increase to cement viscosity and gel strength, which helps reduce free water, settling, and sedimentation
• Helps prevent fluid loss and gas migration in most API and lightweight commercial cements
• Little to no effect exhibited on low temperature cement retardation
• Improved bonding can be achieved with low loadings
• Provides improvements to cement with enhancing durability, as well as improves bond strength and sheer bond strength for the life of the well
• Consequently, shear bonds have an increased resistance to thermal cycling
• Improvement to cement flexural strength
• Cement slurries containing RFL-70X are more resistant to acids and brines

Riteks Glass Beads are hollow microspheres for oil & gas cement applications with moderate pressure and shear. These beads allow formulators to reduce slurry densities and maintain good workability & higher compressive strengths, while favorably impacting total costs.

Riteks Latex Stabilizer-RS is an anionic complex that helps compatibilized and stabilize polymeric solutions in latex slurries. When added to the Riteks GCL-4, Riteks Latex Stabilizer-RS minimizes viscosity rise due to poor salt stability, smoothing out the compound and enhancing compound flow characteristics.

Riteks GCL-4 cement additive is a liquid additive designed to lower equivalent circulating density (ECD) and impart excellent gas migration & fluid-loss control, high-temperature suspension properties, and acid resistance to cement slurries. Riteks GCL-4 additive is successful across a wide range of well conditions from 60°F (16°C) to 350°F (176.7°C) circulating temperatures and is used in both primary casing cementing operations and remedial squeeze work.

Features and Benefits

• Lowers ECD resulting in consistent pump rates and better mud displacement
• Improved wettability for increased bonding strength to the casing
• Resistance to attack by corrosive fluids
• Mechanical data shows that Riteks GCL-4 is more resilient than normal cement slurries
• Flexural strength modification
• Superior solids suspension properties
• Exceptionally low fluid loss, while exhibiting excellent rheological properties
• Functions at bottomhole circulating temperatures (BHCTs) of 60F to 350F

Next generation fiber technology proven to effectively seal formation fractures improving fluid loss, loss of circulation, and return to surface properties in spacers, primary cementing, and helps prevent the need for costly remedial cementing operations. It offers dramatic improvements for areas of lost circulation in porous formations, by bridging gaps as well as aiding in support/suspension of the slurry design, with the additional benefits of improved bond logs, filter cake stability, and consistent slurry fluidity.

Solubond Fibers are an Innovative fiber technology that functions as an acid soluble Lost Circulation Material (LCM) where losses are an issue, but acid solubility is key. These fibers offer increased circulation by bridging and plugging off voids, fractures, and all types of permeable formations, and are compatible with cement and other fluids. These fibers offer low loading levels that range from 0.25 – 1pps and up to 5ppb in spacers. while being noncorrosive to equipment, and maintaining high-solubility in diluted hydrochloric acid (HCl) & formic acid (HF).

Next generation fiber technology proven to significantly increase the mechanical properties providing more durable, longer lasting cement for the life of the well.  The fiber count, specific gravity, strength, and bonding with cement enhances and improves mechanical properties including tensile strengths, flexural modulus, & stress/strain on the cement.

Features and Benefits

• Lost circulation properties
• Field tested to be effective for returning circulation in porous formation
• Effectively bridges gaps and aids in support & suspension of the slurry design
• Demonstrated good improvements to bond logs- aids in preventing shrinkage of the cement.
• Material is easily dry-blended or hand dosed
• Has little effect on the rheology & viscosity of the cement slurry
• Becomes part of cement matrix by interacting with bot water and cement phases due to carboxyl groups in the acrylic fibers
• Significantly outperforming nylon and polypropylene based LCM fibers

Riteks MS Spacer is a customizable spacer that is applicable in remedial, primary, and loss circulation situations. The system can help mitigate lost circulation issues while cementing by minimizing induced losses & filtrate invasion and damage. It offers dual functionality as a yield point (YP) modifying tunable spacer to effectively clean the hole. MS Spacer creates a low permeability membrane across the well’s formations that penetrate micro-fractures to mitigate cement leak off and increases the ability to place cement jobs.

Features and Benefits

• Forms a seal to minimize filtrate invasion
• Effectively reduces cement losses and formation damage from filtrate migration
• Enhances hole cleaning prior to cement placement, effectively removing gelled drilling fluid
• Allows increased ECD at casing depth in wells where the fracture gradient limits design density of cement
• Provides wellbore strengthening and reduces induced losses
• Compatible with virtually all cement systems and drilling fluids

You can use MS Spacer, as a free-flowing power, in a dry-blended and easily dissolve it in the mixing water.

Riteks RSP-4D is a powdered surfactant for use in cement spacers, chemical washes, and drilling fluids. This product provides water wetting tendencies to enhance the cleanout of oil substrates through an ultra-low interfacial tension, helps leave the pipe and formation in a water-wet condition, and is applicable over a wide temperature range.

We developed RSP-4D to improve the efficiencies in dosing and to allow a true ‘on-the-fly’ spacer or chemical wash system, in combination with Riteks MS Spacer. Riteks RSP-4D surfactant acts as a degreaser, provides water wetting properties, promotes cement bonding, and helps to assure rheological compatibility in between oil-based (OBM) or synthetic-based (SBM) muds and the spacer.

Features and Benefits

• Helps improve spacer performance when displacing oil-based mud systems
• Facilitates the removal of filter cake build-up while improving cement bonds
• Designed to reduce interfacial viscosity and preferentially water-wet the pipe and formation to promote better cement bonding
• Aids in the rheological compatibility between the wash/spacer and oil-based (OBM) or synthetic-based (SBM) muds

Riteks RCR-200 is an environmentally friendly deflocculant / dispersant that is used to control thermal gelation while stabilizing rheological properties in water based fluids. It is effective over broad pH ranges and mud types and particularly efficient in lowering PV’s in high temperature, high density fluids with bottom-hole circulating temperatures (BHCTs) up to 220°F (104.4°C) and can withstand static temperatures up to 260°F (126.7°C). RCR-200 is particularly useful in cements containing high gel percentages, and increased concentrations of RCR-200 enhance the predictability of cement thickening times.

Features and Benefits

• Increased concentrations of RCR-200 enhance the predictability of cement thickening times
• Improved slurry displacement rates at steady pressures
• Provides early cement-strength development
• Aid in extending a slurry’s temperature range and yield a smoother, more uniform slurry
• Decreases the danger of over-retarded slurries at the top of a long cement column
• Helps displace slurries at high rates while maintaining formation pressure

Riteks RCR-800 is a non-lignin cement retarder capable of retarding cement at temperatures between 80 – 220°F (20 – 105°C). This material is non-dispersing and is compatible in a wide range of additive combinations in API cements.

This is an alternative to commonly used lignin retarders. It provides good strength development and can be used in a variety of situations such a water-extended slurries, long cement columns, or cooler temperatures.

Predictable responses to changes in concentration and repeatable results has been shown. It has been proven effective in several API classes cements including Class G, Class H, Class A, Class C.

Features and Benefits

• Non-dispersing properties
• Provides linear and consistent results and good strength development
• Very compatible with other cement additives
• Increases cement thickening time

Riteks THIX-C2 is a thixotropic additive that controls free water, promote early strength development, prevent cement fallback, and control fluid migration during primary cementing applications. Riteks THIX-C2 provides very low loading levels as well as improvements with fluid properties and strengths in water extended slurries, as well as fit-for-purpose cement designs when ‘quick set’ cement is needed, i.e. Squeeze Jobs, Plugs, & Water Shutoff.

Features and Benefits

• Allow slurry properties such as transition times and gelation
• Helps slurries develop gel strength quickly
• Reduces job costs by reducing waiting-on-cement time and the need for fluid-loss additives
• Offers an economical alternative to gypsum in this application