Biological enzyme plugging technology appeared in Tuha Oilfield

Who can scrape a drop of crude oil off the rock? A biological enzyme called AE-2 has this magical ability Tuha oilfield has successfully dredged two wells with serious wax formation As of August 5, the cumulative production of crude oil has exceeded 1500 tons Different from conventional acid chemicals, AE-2 biological enzyme is a kind of alkaline environmental blocking agent, and its main component is a variety of natural extracts dominated by enzyme AE-2 has the dual characteristics of lipophilic and hydrophilic, so it has the special ability of stripping crude oil When the oil-solid mixture is encountered, its lipophilicity first plays a role and adheres to the surface of the oil drop, thus peeling the oil drop off the solid surface Since then, its hydrophilicity plays a role, firmly occupying the solid surface, and making other crude oil can not attach again After discovering the unique activity of AE-2, the petroleum workers applied it to remove the oil layer wax and asphaltene, reduce the flow resistance of crude oil in the formation gap, so as to achieve the purpose of oil displacement and enhanced oil recovery Shanshan oil field in Turpan Hami basin is a typical low porosity and low permeability oil field Oil wells are seriously emulsified and waxed, and the formation is blocked Conventional acidizing and fracturing technology is not effective In October 2006, Shanshan oil production plant of Tuha oilfield company introduced AE-2 biological enzyme plug removal technology to solve this problem AE-2 made its debut in Tuha oilfield and won the title of meeting The field test of well s6-25 and well s6-241 was successful once The effective measures reached 100%, and the effect of increasing production was obvious, especially after s6-25 operation, the daily crude oil increased from 0.03 tons to 9.8 tons AE-2 alkaline biological enzyme plug removal technology has simple construction process, no residue generation, avoid secondary pollution caused by operation, and strong adaptability to safety and environmental protection The technical director of Shanshan oil production plant in Turpan Hami oilfield said that this new technology has a good prospect of popularization and application.