厄瓜多尔TARAPOA地区录井解释评价方法研究与应用  

Research and application of mud logging interpretation evaluation methodin TARAPOA area of Ecuador

作　　者：杜鹏 DU Peng(CNPC GWDC Mud Logging Company,Panjin,Liaoning 124010,China)

机构地区：[1]中国石油长城钻探工程有限公司录井公司

出　　处：《录井工程》2020年第1期67-72,共6页Mud Logging Engineering

摘　　要：TARAPOA地区是南美安第斯油田的主力产油区,随着钻井工艺发展和勘探开发的不断深入,该地区钻进中岩屑破碎更加严重,烃类信息大量损失,含油显示难以识别,同时潜力储集层的气油比普遍较低,气测录井难以及时发现油气显示,导致高含油储集层识别困难。为攻克这些勘探难题,2017年开始在该地区引入三维定量荧光录井技术和地化录井技术。通过三维定量荧光录井,可以判别油质类型、准确区分钻井液污染,同时优选参数,应用对比级N和相当油含量C两项参数建立了三维定量荧光参数标准;应用地化录井的S1、S2、Pg、Ps四项参数建立了地化参数标准,优选S2、Pg两项参数建立地化解释图板。同时,通过建立地化含油参数Co,结合三维定量荧光对比级N,建立了该地区的录井综合解释评价图板。2017-2018年在TARAPOA地区19口井应用三维定量荧光及地化参数标准、地化解释图板和录井综合解释评价图板,有效地解决了该地区储集层解释评价难题,解释符合率达88.7%,并在安第斯油田其他区块成功推广和应用,为后期勘探开发提供了有力支持,具有良好的应用前景,为录井解释评价服务进入更多的国际市场奠定了坚实基础。TARAPOA area is the main oil producing area of Andean oilfield in South America. With the development of drilling technology and the continuous deepening of exploration and development, cuttings are broken more severely during the drilling process in this area, a large amount of hydrocarbon information has been lost, and it is difficult to identify the oil bearing display. Meanwhile, the gas-oil ratio of potential reservoirs is generally low, and it is difficult to find the show of gas and oil in time by gas logging, which leads to the difficulty in identifying high oil-bearing reservoirs. To overcome these exploration difficulties, 3D quantitative fluorescence logging technology and geochemical logging technology have been introduced in this area since 2017. With 3D quantitative fluorescence logging technology, the oil types can be discriminated and drilling fluid pollution can be accurately distinguished. The parameters are optimized and 3D quantitative fluorescence parameter standards are established by using contrast grade N and equivalent oil content C . The geochemical parameter standard is established by using four parameters of geochemical logging, which are S 1, S 2, P g and P s, and geochemical interpretation chart is established by optimizing two parameters of S 2 and P g. At the same time, by establishing geochemical oil-bearing parameter C o and combining with 3D quantitative fluorescence contrast grade N , a comprehensive interpretation and evaluation chart of mud logging in this area is established. After the application of 3D quantitative fluorescence, geochemical parameter standards, geochemical interpretation charts and mud logging comprehensive interpretation evaluation charts of 19 wells in TARAPOA area from 2017 to 2018, the problems of reservoir interpretation and evaluation in this area were effectively solved, and the interpretation compliance rate reached 88.7%. It has been successfully promoted and applied in otherblocks of Andean oilfield, which provides strong support for later explora

关 键 词：厄瓜多尔 TARAPOA地区 三维定量荧光录井 地化录井 解释评价 

分 类 号：TE132.1[石油与天然气工程—油气勘探]