西南石油大学学报(自然科学版) ›› 2016, Vol. 38 ›› Issue (5): 41-49.DOI: 10.11885/j.issn.16745086.2014.01.06.06

• 地质勘探 • 上一篇    下一篇

利用碳氢比测井技术评价剩余油及水淹程度

何中盛1, 崔志刚1, 陈光辉1, 何玉阳2, 王学磊1   

  1. 1. 中国石油集团公司测井有限公司吐哈事业部, 新疆 鄯善 838202;
    2. 中国石油集团公司测井有限公司长庆事业部, 陕西 西安 710075
  • 收稿日期:2014-01-06 出版日期:2016-10-01 发布日期:2016-10-01
  • 通讯作者: 何中盛,E-mail:hezhongshengg@163.com
  • 作者简介:何中盛,1965年生,男,汉族,甘肃民勤人,高级工程师,主要从事测井仪器维修。E-mail:hezhongshengg@163.com;崔志刚,1981年生,男,汉族,山东东明人,工程师,主要从事测井仪器维修工作。E-mail:cuishare@163.com;陈光辉,1973年生,男,汉族,河北元氏人,高级工程师,主要从事测井仪器技术管理。E-mail:cghlcj@126.com;何玉阳,1987年生,男,汉族,甘肃民勤人,工程师,主要从事测井资料采集工作。E-mail:heyuyang123@163.com;王学磊,1990年生,男,汉族,甘肃张掖人,助理工程师,主要从事放射性测井仪器维修。E-mail:234958093@163.com

Evaluating Residual Oil Saturation and Water-flood Degree with Hydrocarbon Ratio Logging

HE Zhongsheng1, CUI Zhigang1, CHEN Guanghui1, HE Yuyang2, WANG Xuelei1   

  1. 1. Tuha Division of Logging Co. Ltd., CNOPC, Shanshan, Xinjiang 838202, China;
    2. Changqing Division of Logging Co. Ltd., CNOPC, Xi'an, Shaanxi 710075, China
  • Received:2014-01-06 Online:2016-10-01 Published:2016-10-01

摘要: 碳氢比测井是以地层中的碳、氢元素为主要研究和探测对象,以碳氢比值求解含油饱和度,降低了孔隙度的影响且不受矿化度的限制。依据5种类型油藏,15口井的测井解释结论与试油结论、密闭取芯含油饱和度资料进行分析研究,验证碳氢比(RCH)与孔隙度和含油饱和度的关系,RCH受孔隙度影响比较小,主要受含油饱和度的控制,随含油饱和度的变化而变化;测井解释结论与取芯含油饱和度和试油结论资料的准确性、可靠性、一致性和相关性都较好。实例分析结果表明:该方法可有效评价油层水淹程度、含油饱和度和油水界面,为寻找遗漏油层和堵水等措施提供有效资料,在砂泥岩剖面中适用范围较广,无论是砂岩、砾岩以及低阻油藏均可取得显著的地质效果。

关键词: 碳氢比测井, 孔隙度, 密闭取芯含油饱和度, 水淹程度, 地质效果

Abstract: RCH logging technology focuses on carbon and hydrogen ratio in the stratum to get the oil saturation,which mitigates the effect of porosity and is free from the limitation of salinity. The authors analyzed and identified the relation between the RCH and oil saturation according to the conclusions of the RCH interpretation and oil testing of 15 wells of five reservoirs types, as well as the data on hermetic core oil saturation. the analysis revealed that the oil saturation, rather than porosity has the prominent effect on the RCH, which changes along with oil saturation changes; The conclusions of the RCH interpretation and oil testing are accurate,credible and of good correlation. The test on the five reservoirs types indicated that the RCH can evaluate waterflood degrees and the residual oil saturation effectively. It can provide reliable data in searching missing oil reservoir and providing measures of water plugging as well. Besides, the RCH can be widely-used in sand shale profile. It has a remarkably geological effect in sand, mud or low resistance oil reservoir.

Key words: hydrocarbonratio logging, porosity, hermetic core oil saturation, waterflood degree, geological effect

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