陈家庄油田目前共有稠油热采井300口,目前均采用吞吐开发。据2012年数据统计,因作业及维护出现油井冷伤害占所有维护油井的85%,全年影响油量3200t。低温入井液对地层影响是不可逆的,冷伤害严重影响稠油热采区块开发水平。陈南稠油热采井在注汽过程中,针对油井在作业和维护过程中存在的冷伤害,开展的热能的再利用研究和推广。通过内、外部热量的利用,达到了油井末期维护、是否出砂的判断、地层降粘等目的,实现了防止冷伤害的目标。 At present, there are 300 heavy oil thermal recovery wells in Chenjiazhuang Oilfield, which are currently used for throughput development. According to the 2012 statistics, 85% of all maintenance oil wells were affected by cold damage caused by operations and maintenance, affecting 3,200 tons of oil during the year. The influence of low-temperature fluid into the formation is irreversible, and cold damage seriously affects the exploitation level of heavy oil thermal recovery blocks. Chen Nan heavy oil thermal recovery wells in the steam injection process, for the oil wells in the operation and maintenance of the existing cold damage, to carry out the re-use of thermal energy research and promotion. Through the use of internal and external heat, the end-of-well maintenance, sand determination and formation viscosity reduction have been achieved, thus achieving the goal of preventing cold damage.