Cementing
Provide the Consistency, Integrity, Product Quality
for Your Well Conditions
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Cementing is the process of placing cement between the casing and the formation. When a part of an oil or gas well is drilled, steel casings are located and fixed with cement to the formation in order to keep the well stable. This cement also separates different geological layers from each other; functions as a barrier that protect the casing from corrosion; prevents the oil, gas, or water from moving in the annulus; and is used in other operations such as well abandonment.
DOSAS’ state-of-the-art cement additives include a broad range of products that you need to reach well integrity. Our fluid loss control additives, which are stable at high temperatures and difficult conditions, provide filtration control properties for a variety of drilling fluids and assure you of a suitable cement concentration, in addition to these fluid loss control additives we have lost circulation control additives that are most powerful bridging materials to control the slurry thickness. We offer gas migration control additives that greatly prevent gas from migration and channeling through the cement. DOSAS also provides cleaning agents that are truly designed for the effective cleaning of surfaces. Our elasticity agents have flexible mechanical properties that ensure you of a reliable cementing job under different conditions.
Engineered expanding agents of our company usefully prevent the shrinkage of the cement during the setting time. Furthermore, our retarders can be synergistically mixed with our outstanding dispersants allowing for time-critical cementing jobs under high-temperature conditions. And so many other incredible additives that you need for high-quality zonal isolation.
Optimized Cementing Additives Portfolio
Above all, to achieve desired well integrity, we offer a solution or special technology to each particular challenge, that can be customized with your requirements. Do you want to know more about our well cementing products?
We actively promote innovative technology and work to solve customers’ formulating and supply challenges through the provision of these customized solutions. Our experts have the highest competency and global experience in environments, including conventional land operations, ultra-Deepwater, HPHT, and tight clearance cementing.
Get in touch with us to learn about our well cementing family of products and discover how we can work together.
Functions
Gas Migration Control
Gas migration can occur during cement placement between the end of the cementing operation and setting of the cement and after the cement has set. Latex additives are used to prevent short-term gas migration.
Latex Gas Migration Control Additive
Latex Gas Migration Control Additive is an incredible anti-gas migration agent because it controls fluid loss without adversely affecting the rheology or stability of the slurry....
Fluid Loss Control
DosFL™ SP-12 Fluid Loss Control Agent
DosFL™ SP-12 provides extraordinary rheology and filtration control properties at high temperature well conditions....
DosFL™ SP-20 Fluid Loss Control Agent
DosFL™ SP-12 has a viscosifying effect on the slurry after mixing and can be dissolved in mixed water or dry blended with the cement to provide filtration control properties for a variety of circumstances....
Cleaning Agent
Nonaqueous drilling fluids leave a thin layer of oil on the casing and formation, preventing a strong cement bond from forming. To help ensure complete zonal isolation and reduce the risk of remedial work, spacer fluids are used to clean residual mud from the wellbore, casing, and formation before cementing operations.
DosSurf™ 10 Surfactant
DosSurf™ 10 Surfactant is designed to promote phase inversion of an oil external inverted emulsion to be highly effective at degreasing surfaces....
Elasticity Solution
Since the costs involved for maintenance and repair of cement structures are significant and high consuming, DOSAS R&D team have come up with an innovative solution to this problem. We have developed a novel bi-functional product that show both self-healing and elasticity behavior.
DosFlex™ 300 Elasticity Agent
DosFlex™ 300 Elasticity Agent is an advanced swelling solution that is formulated in engineering particle size slurry to provide the set cement matrix with flexible mechanical properties....
DosFlex™ 800 Elasticity Agent
We are using our expertise in products design and to develop our portfolio of high elasticity materials to ensure our clients get the high-level efficiency that their operations need with reducing overall costs and......
DosFlex™ Flexible Cementing Solution
The DosDur™ Flexible Cementing Solution provides elastic properties, and fracture toughness of the cement bond including excellent mechanical properties of set cement system with high thermal stability....
Expanding Agent
Expansive cements expand slightly after the cement is set. This can help promote bonding integrity between cement and the casing and the formation for zonal isolation throughout the life of the well.
DosBond™ LT-10 Expansion Agent
DosBond™ LT-10 is an expansion agent that provides expansion in any API class of cement (A, C, G, or H)....
DosBond™ LT-30 Expansion Agent
DosBond™ LT-30 is a dry additive blend that improves bonding and zonal isolation and provides expansion in cements cured at static temperatures up to 77 °C....
Lost Circulation Material
Thixo Cure Lost Circulation Solution
Lost circulation problem is continuously occurring in the oil and gas wells. Thixo Cure Lost Circulation Solution is proven to help cure losses successfully, particularly severe losses....
DosThiox™ 85 Thixotropic Agent
Lost circulation problem is continuously occurring in the oil and gas wells. It ranges from partial to complete which involve material-replacement, remedial operations expenses non-productive time costs and huge financial impact. DosThiox™ 85 is......
Retarder
Retarders are additives that are added to the cement to delay the setting and thickening time of the cement.
DosR™ 35 Retarder
DosR™ 35 Retarder has a fantastic ability of controlling the fluid life of the cement and extending the setting time....
DosR™ EZ-HT Retarder
Our DosR™ EZ-HT is a great retarder for improved compression strength development in long cement columns and provides slurries with long and predictable thickening time....
Dispersant
Dispersants are cement additives that improve the blending and rheological properties and reduce the viscosity of the cement.
DosPersX™ 80 Dispersant
DosPersX™ 80 is an additive used in a broad spectrum of cement and drilling temperatures to retard setting, extend pump times, and allow the cement to reach the desired location in the......
| Our additives modify the behaviour of the cement system, ensuring adequate zonal isolation during the lifetime of the well. Our CO2 Cement Technology is an optimized chemistry, which significantly enhances the chemical resistance of cement in the carbon dioxide corrosive environment. |