Cementing Additives
UniKlean Wellbore Cleaning Chemcals
UniKlean Series are designed as oilfield cleanup chemicals, such as the wellbore cleanup, as a spacer pill additive,displacement chemical,Rig wash chemical...As a wellbore and downhole equipment cleaner, it combines efficient dissolving capacity and powerful water wetting ability, with which it can thin, dissolve and disperse oil/synthetic-base-mud residue, and leave all downhole tubulars and metal surfaces in a water-wet state.
For Now, UniKlean Series has developed into 5 products:
UniKlean Pro,
UniKlean M,
UniKlean Plus,
UniKlean,
UniKlean L.
Designed for different site conditions,exact product concentration will vary depending on the mud type and wellbore conditions.
Product introduction
For Now, UniKlean Series has developed into 5 products:
UniKlean Pro,
UniKlean M,
UniKlean Plus,
UniKlean,
UniKlean L.
Designed for different site conditions,exact product concentration will vary depending on the mud type and wellbore conditions.
Product introduction
UniKlean is formulated from various high-efficiency surfactants and other additives. Nontoxic, odorless, and noncorrosive.
UniKlean has strong permeability and can quickly penetrate into the mud cake formed on the wellbore during the drilling process, dispersing and eroding the mud cake, thereby improving. The bonding ability between cement slurry and the contact surface.
Technical Index
Appearance |
Clear liquid |
Specific Gravity (20 °C, g/cm3） |
0.90-0.98 |
Flash Point (°C, closed) |
> 61 |
Cleaning ability≥% |
90 |
Applications/Functions
UniKlean has strong washing and decomposition characteristics, which can effectively remove and displace polymeric substances in drilling fluid in wells, and effectively improve the bonding ability of cement slurry. The exact product concentration and spacer/wash volumes will vary depending on mud type and wellbore conditions. Recommendations fora specific application should be made after consulting YouzhuChem representatives.
Advantages
>This additive efficiently combine powerful solvents, surfactants, and water-wetting agents to provide excellent surface cleaning.
>Powerful dissolving and water-wetting capacity
>It has good compatibility with completion mud.
>Compatible with freshwater, seawater and heavy brines
>Low chemical concentration
>Good cleaning effect on oil-based mud at 100rpm@80℃
>It has good compatibility with completion mud.
>Compatible with freshwater, seawater and heavy brines
>Low chemical concentration
>Good cleaning effect on oil-based mud at 100rpm@80℃
Recommended Handling
All personnel handling this material must handle it as an industrial chemical, wearing protective equipment and observing the precautions as described in the Material Safety Data Sheet (MSDS)...(Click to contact for it)
Packaging and Storage
Plastic bucket packaging, 25kg/bucket, or packaging according to customer requirement. Prevent packaging damage during storage and transportation. The storage period is one year.
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Laboratory Test
1.1 Test by:Youzhu(Unibrom Group)OFC Lab
1.2 Test method：
(1)Main test equipment: six-speed rotary viscometer -Fann35s.
(2)Test steps:
(3) Place a six-speed viscometer measuring cup containing oil-based mud on the measuring bracket, then move the bracket evenly and slowly so that the oil-based mud does not pass through the round hole in the sleeve, while soaking for no more than 20 seconds.
(4) Move down the bracket to completely remove the oil-based mud from the six-speed rotary viscometer test sleeve, and let the oil-based mud remaining on the test sleeve stand for 5 minutes, and the oil-based mud remaining on the sleeve is the simulated oil-based mud to be tested and cleaned.
(5) Preparation of cleaning agent solution: UniKlean Pro aqueous solution, concentration 4%.
Contact us for the detailed test information
base fluids Solubility & Case study
YouzhuCHEM's Engineers has done a series lab tests on the UniKlean Series, water, brine...
For UniKlean case study, pls click the following link to contact us. Thank you for your time.
The UniKlen filter cake cleaner additive efficiently combine powerful solvents, surfactants, and water-wetting agents to provide excellent surface cleaning.
When used in wellbore-cleaning operations, it thins, dissolves, and disperses oil and synthetic-based-mud residue.
Afterward, it leaves all downhole tubulars and metal surfaces in a water-wet state.
Unmatched Cleaning Power
Our UniKlen stands out with its powerful dissolving and water-wetting capacity. Engineered for wellbore-cleaning operations, this product combines a potent blend of solvents, surfactants, and water-wetting agents. This formulation ensures an aggressive attack on filter cake deposits, which are notorious for complicating drilling and production processes. Just like Deepclean, our cleaner:
Efficiently Dissolves Deposits: The solvents in our cleaner swiftly break down complex filter cake structures, ensuring that even the most stubborn deposits are removed without the need for multiple treatments.
Surfactant Synergy: With a superior mix of surfactants, the cleaner not only aids in the dissolution but also in the emulsification of oil-based mud residues, providing a clean slate for subsequent operations.
Water-Wetting Excellence: Our product enhances the water-wetting properties of the wellbore surfaces, which is essential for ensuring good cement bonding and preventing issues like gas migration during cementing operations.
DeepClean
We designed the same product, which has passed the test by six-speed rotary viscometer -Fann35s.
01
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Cement Bond Integrity
To ensure a good cement bond with the formation and casing, the wellbore surface must be clean. OBM/SBM can leave behind residues that prevent cement from adhering properly, which could lead to poor zonal isolation, potential gas migration, and failure of the cement sheath to contain pressure.
02
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Water-Wetting of Surfaces
Oil- or synthetic-based muds can leave surfaces oil-wet, which is not conducive to the adhesion of cement, which requires water-wet surfaces for optimal bonding. Displacement helps in making the wellbore water-wet, improving cement adhesion.
03
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Avoiding Contamination
OBM/SBM can contaminate completion fluids, which often include water-based systems. Such contamination can lead to issues like emulsion formation, which might affect the performance of completion tools, packers, and other downhole equipment that rely on specific fluid properties.
04
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Reducing Corrosion and Scaling
The presence of oil-based fluids can promote corrosion or scaling in downhole tubulars and equipment, especially in the presence of water. Displacing these fluids helps in maintaining the integrity of the metal surfaces and reducing maintenance issues.
05 /
Operational Efficiency
Drilling fluids that are not displaced can interfere with the functionality of completion equipment. For instance, the presence of thick mud can hinder the setting or operation of packers, valves, or screens.
06 /
Formation Damage Prevention
Oil-based muds can invade the formation, potentially causing damage by blocking pore spaces or altering the formation's wettability. This can affect reservoir performance. Displacement helps to mitigate such damage.
07 /
Environmental and Safety Considerations
Handling and disposal of oil-based or synthetic-based muds can be more challenging and costly due to environmental regulations. Displacing these fluids with more environmentally friendly water-based fluids can reduce cleanup costs and environmental impact.
08 /
Compatibility with Completion Fluids
Completion operations often involve fluids like brines, acids, or other chemicals that need to be compatible with the wellbore environment. OBM/SBM might not be chemically compatible, leading to undesirable reactions or precipitation that could obstruct flow or damage equipment.
09 /
Zonal Isolation
Effective zonal isolation, which is critical for controlling fluid movement between different geological zones, depends on a good cement job, which in turn depends on a clean wellbore.
10 /
Economic Considerations:
While the process of displacement might add to the upfront cost, it can prevent more significant expenses later due to poor cement jobs, equipment failures, or reservoir damage.
The displacement process typically involves using spacers, flushes, or specific chemicals designed to clean the wellbore, change its wettability, and prepare it for the cementing or completion operations. This process is tailored based on the mud type, well conditions, and the specific requirements of the completion strategy.