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大庆外围低渗透油田由于油井产液量低和原油品质差，造成开采成本非常高。如能通过采用投加少量降凝剂的方法来大幅度降低油井采出液的凝点，实现常温集油，则可大大简化现有集油流程，使得这些低渗透油田的开采成本得到显著降低。为此研制了一种适用于大庆外围低渗透油田的乳液型防蜡降凝剂DODP—2，生产中将其稀释后注入到油井油套环形空间，能起到防蜡和降凝作用。室内试验数据表明，每吨油中加入DODP—2（活性物含量20％质量）250g，可降低油井采出液凝点15℃，防蜡率可达52．8％。
Peripheral low permeability oilfield in Daqing, due to the low production of oil wells and the poor quality of crude oil, caused the mining cost to be very high. Such as the use of pouring a small amount of pour point depressant method to significantly reduce the condensate point of oil production fluid to achieve oil collection at room temperature, you can greatly simplify the existing oil collection process, making these low permeability oil extraction costs have been significantly reduced . For this reason, a kind of emulsion type anti-wax pour point depressant DODP-2 suitable for low permeability peripheral oilfield in Daqing has been developed. After being diluted in production, it is injected into the annular space of oil well sleeve to prevent wax and pour point depressant. Indoor test data show that adding 250g of DODP-2 (active content of 20% by mass) per tonne of oil can reduce the oil pick-up point of the oil well by 15 ℃ and the wax prevention rate can reach 52.8%.