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The Bohai Sea has become one of the important bases for offshore oil and gas development in my country. The Bohai Oilfield accounts for about 70% of the total offshore oilfield production and is the largest offshore oilfield in my…
Technical Field This invention belongs to the field of oilfield oil recovery additives technology, specifically relating to a polycyclic anti-sulfur ion type polyacrylamide oil displacement agent and its preparation method. Background Technology In tertiary oil recovery, polymer flooding is a…
Well leakage has always been a significant challenge in the petroleum engineering field. It not only causes drilling resource losses and increased costs, but can also trigger complex conditions such as well collapse and blowouts, increasing non-productive time and even…
Polyacrylamide (HPAM) is a high-molecular-weight polymer obtained by homopolymerization of acrylamide or copolymerization of acrylamide with other monomers containing double bonds. The amide and carboxyl groups in the polymer units enable the polymer to readily form hydrogen bonds in water,…