Ma Hongxing, Xiao Chijun.et al, . FORMATION PROTECTION IN ACID TREATMENT OF NIU 35 BLOCK[J]. Oil Drilling & Production Technology, 2003, 25(1): 55-57. DOI: 10.3969/j.issn.1000-7393.2003.01.018
Citation: Ma Hongxing, Xiao Chijun.et al, . FORMATION PROTECTION IN ACID TREATMENT OF NIU 35 BLOCK[J]. Oil Drilling & Production Technology, 2003, 25(1): 55-57. DOI: 10.3969/j.issn.1000-7393.2003.01.018
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FORMATION PROTECTION IN ACID TREATMENT OF NIU 35 BLOCK

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  • This paper represents formation protection and its results in low permeable sandstone acid treatment of Niu 35 block.Simulated acid tests showed that acid treatment could effectively improve the core permeability in lab,but no effect in the filed aiding.Through analysis of formation and its fluid propensity,low permeable sandstone acidizing,employing thin mud acid systems and optimum selection of acid addictives,effectively prevented damage in low permeable sandstone acidizing and significantly improve the formation permeability of Niu 35 block.
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