Polyacrylamide is a multifunctional oilfield chemical treatment agent widely used in the petroleum industry. Technological advances in polyacrylamide polymers have accelerated the development of the petroleum industry, and the needs of the petroleum industry have accelerated the timely innovation and development of polyacrylamide polymers.
The role of polyacrylamide in oil and gas:
1.Improve Oil Recovery: Polyacrylamide as a thickener can increase the viscosity of water and oil. Improving the water-oil flow ratio, to form a high-viscosity oil displacing agent. Promoting the flow of crude oil in oil wells, so that more crude oil is driven out and the recovery rate is increased.
2.In tertiary oil recovery, one of the most widely used applications is ultra-partially hydrolyzed high molecular weight polyacrylamide (HPAM). High-viscosity polyacrylamide (HPAM) solution can improve the oil driving efficiency and reduce the residual oil saturation. High concentration of polyacrylamide can increase the recovery by more than 20% on the basis of water drive, and overcome the defect of alkali contamination to the formation.
3.Water treatment: Wastewater generated in the process of oilfield mining (oily wastewater) needs to be treated before discharge or reuse. Polyacrylamide is widely used as a flocculant in oilfield wastewater treatment. It can quickly settle suspended solids and sediments in the water, , reduce the clogging and siltation of oil wells. And improve wastewater treatment efficiency and water quality. Reducing the maintenance cost and cleaning cycle, and extend the service life of oil wells. Oilfield sewage treatment, polyacrylamide is an important class of synthetic organic polymer flocculants. Compared with traditional inorganic flocculants, polyacrylamide has the advantages of more varieties, high flocculation efficiency and less sludge generation.
4.Fracturing fluid: In oil and gas field fracturing operation, polyacrylamide is used as thickening agent for fracturing fluid to increase the viscosity of the fracturing fluid, so that it can bring fracturing sand into the fracture more effectively. And keep the fracture open to increase oil and gas production.
5.Gas Dehydration: Polyacrylamide can be used as part of the dehydration process to remove water from natural gas to prevent pipeline corrosion and ice jams, which greatly enhances the efficient transmission and storage of natural gas.
6.Environmentally friendly: Compared with traditional chemicals, polyacrylamide degrades faster, it doesn't bring persistent pollutants to the environment.
7.Drilling fluids: Polyacrylamide can be used as an additive of drilling fluid, lubricate the drill bit, which is favorable for drilling, improve the viscosity and suspension performance of drilling fluid, help carry the drill cuttings back to the surface, reduce the loss of drilling fluid, and protect the oil and gas layer during the drilling process. It can also greatly reduce stuck drilling accidents, reduce the wear of equipment, and can prevent the occurrence of well leakage and collapse, so that the well diameter rules
Polyacrylamide has made a good contribution to the development of oil and gas engineering. It is an indispensable chemical additive in oil and gas extraction. In practical application, choosing the right type and model of polyacrylamide can further optimize its effect according to different reservoir characteristics and extraction processes.