摘要
针对毛8块中深层、中低渗、低温低压普通稠油的油藏特征,进行了CO2与毛8块原油溶解降黏实验,在此基础上开展了10口水平井的CO2、降黏剂复合热采技术矿场试验,对影响热采效果的因素进行了分析。结果表明,水平段长度、钻遇率、油层物性及注汽质量等是影响热采效果的主要因素。
The Mao-8 block in Zhagan sag is characterized by ordinary heavy oil reservoir of middle-deep strata, medium-low permeability anti low temperature and pressure, based on which the experiments of solubility and viscosity reduction between C02 and Mao-8 block crude oil are conducted. The pilot tests of 10 horizontal wells are conducted using CO2 and viscosity breaker compound thermal recover3 technology, and the factors influencing the thermal recovery effects are analyzed. The results show that horizontal interval length, drilling encounter rate, reservoir physical property and steam injection quality are the main factors.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2013年第2期213-214,共2页
Xinjiang Petroleum Geology
关键词
稠油
热采
二氧化碳
蒸汽吞吐
heavy oil
thermal recovery
CO2
steam stimulation
