油田常规钻井取心岩样测定润湿性的试验研究  

Experimental Study on Wettability Measurement of Cores for Conventional Drilling Coring

作　　者：王尤富[1,2] 臧士宾[3] 胡斌[2] 王立[2] 

机构地区：[1]油气钻采工程湖北省重点实验室(长江大学) [2]长江大学石油工程学院,湖北武汉430100 [3]中石油青海油田分公司,甘肃敦煌736202

出　　处：《石油天然气学报》2014年第8期113-115,7,共3页Journal of Oil and Gas Technology

摘　　要：参照我国石油天然气行业油藏岩石润湿性测定方法的标准,利用英东油田常规钻井取心岩样,试验研究了岩样清洗溶剂、岩样老化时间和老化用油对油藏岩石润湿性的影响。结果表明,甲苯和酒精/苯溶剂清洗的岩样的亲水性强于四氯乙烯溶剂清洗的岩样;随老化时间的增长,岩样的润湿性向亲油的方向转换,只有当老化时间达到一定时间后岩样的润湿性才能达到稳定;老化油中的胶质和沥青质含量增大,岩样的亲油性增强。研究结果对利用常规钻井取心岩样测定油藏岩石的润湿性具有重要的参考价值。By referring to the standard of measuring the reservoir rock wettability of the oil and gas industry,conventional drilling core samples of Yingdong Oilfield were used for an experimental study on the influence of the cleaning solvent,aging time rock sample of and its aging oil on reservoir rock wettability.The results show that for toluene and ethanol/benzene solvent cleaning of rock samples their hydrophilism is stronger than those of tetrachlorethylene cleaned rock samples;along with the growth of the aging time,the wettability of rock samples is transformed to lipophilic,only when the aging time is stable,rock wettability is steady.Colloid in aging oil and asphaltene content increases,lipophilic of rock samples enhances.The results have important reference for core wettability measurement of conventional drilling coring.

关 键 词：常规钻井取心 润湿性 岩样老化 自吸法 

分 类 号：TE24[石油与天然气工程—油气井工程]