摘要
塔河油田超稠油埋深超过6000 m、黏度高于100×10^(4) mPa·s,开采难度极大,属于世界级难题,常规开采工艺无法将其正常产出。利用塔河油田超稠油温敏性极强的特点,在充分考虑塔河油田超深、超稠井况基础上,优选高效纳米保温材料,将其用于涂层中;通过技术合成带特殊官能团的高分子化合物,经稳泡处理和惰性化处理,生产一种具备隔热物理特性的材料;在微观上构筑全新、高效的热阻隔系统,对热量的不同表现进行全方位的高效阻隔,达到利用地热资源开采超深超稠油的效果。已完成两井次先导试验,在无任何外界热量补充的条件下,仅利用地层热量,单井井口温度最高提升20℃。该技术具有环保、高效、节能的特点,在塔河油田超稠油区块应用前景广阔。
Featuring a burial depth greater than 6,000 m and a viscosity greater than 100×10^(4) mPa·s,the ultral-heavy oil in Tahe oil-field is very difficult to produce,and remains as a world-class problem since it cannot be produced normally by conventional produc-tion technology.Taking advantage of the extremely strong temperature sensitivity of Tahe ultral-heavy oil,and with the conditions of the ultra-deep and ultra-heavy oil wells in Tahe oilfield fully taken into account,a high-efficiency thermal-insulating nanomaterial is selected as coating material.A material with heat-proof physical properties is produced by synthesizing a polymer compound with spe-cial functional groups by technical means,which is then subjected to foam stabilizing and inerting treatment.A new and efficient ther-mal barrier system is constructed microscopically to effectively block the different performances of heat in an all-round way,and achieve the effect of producing ultra-deep and ultra-heavy oil by using geothermal resources.A pilot test on 2 wells has been complet-ed.Under the conditions of using the formation heat only without any supplement of external heat,the maximum increase in wellhead temperature of a single well is 20°C.Due to its environmental friendliness,high efficiency and energy conservation,this technology has a promising application prospect in the super-heavy oil blocks of Tahe Oilfield.
作者
刘磊
范伟东
陈红举
刘玉国
李晶辉
LIU Lei;FAN Weidong;CHEN Hongju;LIU Yuguo;LI Jinghui(Research Institute of Petroleum Engineering Technology,Sinopec Northwest Oilfield Company,Urumqi 830011,Xinjiang,China;Key Laboratory for Enhanced Oil Recovery in Carbonate Fractured-Vuggy Reservoirs,Sinopec Group,Urumqi 830011,Xinjiang,China)
出处
《新疆石油天然气》
CAS
2022年第2期92-97,共6页
Xinjiang Oil & Gas
基金
中石化科研项目“塔河油田未动用储量开发关键工程技术研究”(编号:P21063-3)。
关键词
超深井
超稠油
地热
保温
纳米
气凝胶
热损失
ultra-deep well
ultra-heavy oil
geothermal
insulation
nanometer
aerogel
heat loss
