With the continuous upgrading of oil and gas resources development technology, the performance and stability of chemical additives have put forward higher requirements. As a kind of polyamine compounds, poly(dichloroethylene ether tetramethylethylenediamine) (WSCP), due to its good reactivity, chemical stability and multifunctional modification characteristics, has been widely used in many fields of the petroleum industry, and has become an important part of many oilfield chemicals.
Product Characteristics
Poly(dichloroethylene ether tetramethylethylenediamine) is a modifier and cross-linking agent containing multiple quaternary ammonium groups, which usually behaves as a colorless to light yellow transparent liquid, with the following key features:
- Strong cationicity: it can quickly combine with many anionic materials to form a stable structure;
- Good water solubility: suitable for various water-based systems;
- Strong chemical stability: temperature and salt resistant, adapting to the harsh environment of oilfield;
- Multi-functional structure: with cross-linking, surface activity, sterilization and other multiple properties.
Typical applications in the oil industry
1. Used in anticorrosive system as bactericide or bactericidal additives
Oilfield environment is complex, easy to breed sulfate-reducing bacteria (SRB) and other microorganisms, resulting in equipment corrosion, WSCP can be used as a biocide activity enhancement component due to its strong cationicity and molecular penetration to improve the overall sterilization efficiency and reduce the formation of slime.
2. Modification of cationic flocculants for oilfield injection and extraction systems
In oilfield extraction, sewage re-injection treatment is often required, WSCP as a polymerized cationic monomer or modified group can be used to formulate polymer flocculants to help oil-water separation, improve the quality of re-injection water, and effectively control formation contamination and pipeline clogging.
3. Key components of cross-linked water plugging agent or dissection regulator
In the process of tertiary oil recovery (e.g. polymer drive, foam drive), WSCP can synergize with cross-linking agents (e.g. organic chromium, cross-linking polyacrylamide) to form a high-strength, salt-resistant, high-temperature-resistant gel structure, which can be used to plug high-permeability channels and improve the recovery rate.
4. Stabilizer or clay inhibitor in drilling and completion fluids
WSCP can have ion exchange reaction with clay particles to prevent shale from hydration and expansion during drilling, which can inhibit well wall collapse and improve well wall stability.
5. Emulsifier or surfactant enhancer for oil-water interface regulation
In the process of crude oil dehydration, emulsion separation, oil and gas treatment, WSCP can be used as cationic surface regulator to improve the interfacial tension, promote the rapid separation of oil and water, and improve the quality of oil products.
Product Advantages
Functional properties and application value
High cation activity: enhance flocculation, adsorption, sterilization and other functions.
High temperature and high salt stability: adapted to the environment of deep wells and highly mineralized oilfields.
Flexible molecular structure: can be customized with functional groups for different oilfield needs.
Strong compatibility: can be used with a variety of oilfield auxiliary systems.
Conclusion
Due to its structural advantages and multiple functions, poly(dichloroethylene ether tetramethylethylenediamine) (WSCP) has shown its potential for application in petrochemical industry, especially in oilfield development. Whether it is to enhance the recovery rate, improve the efficiency of water treatment, or enhance the stability of the system, it can bring real technical improvement and economic value for customers.