Polyacrylamide (PAM) is not only a high-performance flocculants, but also a very good thickener because of the high viscosity. Due to its thickening, flocculation and regulation of rheological properties, PAM could be used as a variety of additives, such as drilling fluids, fracturing fluids, and additives in Enhanced Oil Recovery (EOR)
. The key point to get the best performance of polyacrylamide in specific application is optimal design and selection of the products in the molecular weight, ion degree way and together with the oilfields conditions.
Polyacrylamide (PAM) could be used as a drilling fluid additive.
The role of polyacrylamide is to adjust the rheology of the drilling fluid, carry cuttings, lubricate the drill bit and facilitate drilling. This application could also reduce the drill accident and relieves the equipment from wear, and prevents the occurrence of well leakage and collapse.
Polyacrylamide (PAM) could be used as a polymer flooding. Currently polymer flooding technology plays an important role in improving oil recovery. The role of polymer is to adjust the rheology of injected water, increase the viscosity of the driving fluid, and improve the efficiency of water flooding , To reduce the formation of water phase permeability, so that water and oil can move forward smoothly. Polymer flooding is through the injection of water by adding a certain amount of Sinofloc polyacrylamide to increase the viscosity of water injection, Improve the oil and water flow ratio. So that the low permeability layer or low water flooding layer of water absorption increased the expansion of the water in the oil layer on the surface of the spread and the thickness of the flood layer in the longitudinal, so as to expand the flooded volume, the water flooding unused crude oil Driven out to achieve the purpose of improving oil recovery.
Polyacrylamide (PAM) could be used as water shutoff agent in the oil field. Due to the formation of heterogeneity, flooding problems happens sometimes which needs the process for water shutting. This application is to change the water in the formation of the osmotic state, in order to reduce oil production water, to maintain the formation of energy, to enhance the ultimate recovery of the purpose. Sinofloc polyacrylamide water shutoff agent has better selective role on the oil and water permeability. Sinofloc polyacrylamide can also be used to adjust the formation of water absorption section and block large holes, in practice has seen good results.
Polyacrylamide (PAM) could be used as fracturing fluid additive in fracturing process. The fracturing process is to open the rock channel to make oil flows through which are the important stimulation measure in oil field development of dense layer. Sinofloc polyacrylamide cross-linked fracturing fluid is with high viscosity, low friction, good ability to suspend the sand and the ease of preparation and low cost advantages are widely used.
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