Cementing
Provide the Consistency, Integrity, and Product Quality
for Your Well Conditions
________
Well Integrity is the ultimate goal of the well construction process. Our team has international experience in achieving zonal isolation and cement-sheath integrity in the most technically and economically viable way. As well cementing technology has advanced, special cement systems have been developed to address specific problems.
Engineered solutions for ultralight foamed slurry, efficient mud removal, and lost circulation control aid to optimized operations, enhancing wellbore integrity. With customer needs in mind, we aim to offer a solution to each particular challenge that adds value, whether it is through the technical edge, consistent reliable performance, or simplified operational advantage. Special technologies also exist for problems such as annular fluid migration and cyclic stresses on the sheath.
DOSAS offers high-performance additives for achieving high-quality zonal isolation, allowing for accurate reservoir characterization, maximizing recovery through production optimization operations, and reducing eventual abandonment costs. 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.
Functions
Latex Gas Migration
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.
GASSTOP™ 3000 Latex Gas Migration Control
GasStop™ 3000 is unique as an 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 Agent
DOSFL™ SP-12 is a fluid-loss additive for cementing and is designed to reduce the American Petroleum Institute (API) filtration rate of many water based fluid systems. This product provide filtration control properties for a......
DosFL™ SP-16 Fluid Loss Control Agent
DosFL™ SP-16 is a water-soluble synthetic co-polymer particularly suitable for oil well cement slurries....
DosFL™ PV-30 Fluid Loss Control Agent
DosFL™ PV-30 is an excellent binder, reduces fluid loss, reduces water production in the well cementing process....
DosFL™ D Fluid Loss Control Agent
DosFL™ D is a very effective solid fluid loss additive used in controlling the fluid loss rates. Low concentration of DosFL™ D, control ISO/API fluid loss rate below 50 mL/30 min owing to the......
DosFL™ SP-20 Fluid Loss Control Agent
We provide fluid loss control additives to help engineers address the industry’s most pervasive types of fluid loss. We recommend DosFL™ SP-20 to provide fluid loss control of all types of cement slurries at......
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....
DosSurf™ AG-25 Surfactant
DosSurf ™ AG-25 is based on anionic and non-ionic surfactants. The surfactant package DosSurf™ AG-25 is required for the design of spacer fluids after Non-Aqueous Fluids (NAFs) have been used for drilling. The spacer......
Elastity 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 at high temperature and or harsh conditions.......
DosFlex™ 100 Elasticity Agent
DosFlex™ 100 Elasticity Agent is a powdered material that is formulated in engineering particle size slurry to make set cement matrix having flexible mechanical properties at low or medium temperatures. _____ Benefit: Improves mechanical......
DosDur™ Cement Light Filler
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......
DosDur™ 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™ 10 Expansion Agent
The use of expansive cement can overcome and improve some shortcomings of ordinary cement slurry (cement will shrink in the setting process, which causes the cement sheath to crack and be permeable), and can......
DosBond™ TECHNOLOGY
Cement systems that expand slightly after setting are a proven means of sealing microannuli and improving primary cementing results. The improved bonding is the result of mechanical resistance or tightening of the cement against......
DosBond™ 30 Expansion Agent
DosBond™ 30 provides expansion in cements cured at static temperatures up to 77 °C. It is a dry additive blend that improves bonding and zonal isolation. DosBond™ 30 is effective with all Portland cements......
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
DosThiox™ 85 is a thixotropic additive that helps manage lost circulation during cementing in cavernous or vuggy formations where bridging materials are ineffective. DosThiox™ 85 Thixotropic Agent is compatible with all types of Portland......
Casing Leaks
DOSDUR™ SELF-SEALING SOLUTION
DosDur™ Self-Sealing Solution ____________ Repair Well Integrity and Cement Bonding DosDur™ Self-Sealing Solution control the crack width in cement. Cracks in the cement sheath are a common phenomenon due to the relatively low tensile strength.......
DosDur™ Self-sealing Particle
DosDur™ is currently utilized as a seepage loss control additive in downhole cementing applications. During the swelling test of the product material in oil, the ground DosDur™ swells in hydrocarbons to induce the self-sealing......
Our additives modify the behavior 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 chemical resistance of cement in carbon dioxide corrosive environment.
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