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polyacrylamide,Municipal sewage treatment Non - ionic polyacrylamide, NPAM . Main Production: 1. Oilfield Chemicals, Oilfield chemical is a general germ,The oilfield chemicals we can supply include anionic polyacrylamide used for oil drilling
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cationic polyacrylamide for textile dyeing wastewater Poly Acrylamide is mainly used for waste water treatment for textile, printing, dyeing, paper-making, mining, ink, and so on. It can be used for color removal treatment for high-colority
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- What is PHPA mud system?
- SPE Drill Eng 7 (03): 191–199. Mud systems with partially hydrolyzed polyacrylamide polymer (PHPA) are used worldwide and have proved effective and versatile for inhibiting troublesome shale formations. We made significant changes in the generally recommended compositions for these systems and developed a systematic approach to applying them.
- Can PHPA mud be used offshore?
- In North Sea applications, PHPA muds are being used offshore The Netherlands successfully and routinely. However, poor results were obtained in offshore Norway and U.K. applications because of formation reactions, inadequate mixing and solids-control equipment, and general inexperience with water-based muds.
- How does PHPA mud control shale?
- For shale-control, PHPA can supposedly seal microfractures, coat shale surfaces with a film that retards dispersion and disintegration. The viscosifying effect of the dissolved high molecular weight polyacrylamide polymer controls the rheological behavior of the PHPA mud.
- Can you drill cement with PHPA mud?
- Do not drill cement with PHPA muds, unless the system will be replaced after drilling out, because PHPA muds are sensitive to high pH, especially in the presence of high calcium levels. If drilling cement with a PHPA system is unavoidable, pretreat the system with 0.251bmlbbl [0.7 kg/m3] sodium bicarbonate.
