| 摘要 |
The current application generally relates to the use of cysteine proteases in water pretreatment that reduce or eliminate premature enzymatic breakage of polysaccharide injection fluids. Plant enzymes can be used as a control method to interrupt bacterium capabilities to interact and destroy polysaccharidases and other enyzmes that may prematurely break frack fluids and other biological thickening agents. Possible enzymes come from a group of proteins known as cystine endopeptidases such as bromelain, papain, calpain, and ficain, and the like. |
