渤中X油田火成岩井场录测综合识别方法

doi:10.3969/j.issn.1672-9803.2020.04.013

录井工程 ›› 2020, Vol. 31 ›› Issue (4): 84-90.doi: 10.3969/j.issn.1672-9803.2020.04.013

渤中X油田火成岩井场录测综合识别方法

彭超^①, 曹军^①, 胡云^②, 苑仁国^①, 袁亚东^①

①中海油能源发展股份有限公司工程技术分公司;
②中海石油(中国)有限公司天津分公司

收稿日期:2020-10-29 出版日期:2020-12-25 发布日期:2021-01-11
作者简介:彭超工程师,1990年生,2014年毕业于东华理工大学资源勘查专业,2019年毕业于中国地质大学(北京)石油与天然气工程专业,获硕士学位,现在中海油能源发展股份有限公司工程技术分公司从事石油地质工作。通信地址:300450 天津市滨海新区海川路渤海石油管理局C座806室。电话:18522076690。E-mail:pengchao2@cnooc.com.cn

Comprehensive identification method of igneous rock wellsite mud logging and well logging in Bozhong X oilfield

PENG Chao^①, CAO Jun^①, HU Yun^②, YUAN Renguo^①, YUAN Yadong^①

①CNOOC EnerTech-Drilling & Production Co., Tianjin 300450,China;
②CNOOC(China) Limited(Tianjin Branch),Tianjin 300452,China

Received:2020-10-29 Online:2020-12-25 Published:2021-01-11

摘要/Abstract

摘要： 渤中X油田东营组火成岩十分发育,由于具有可钻性差、作业风险高、岩性复杂多变等特点,不仅给现场录井带来了重大挑战,同时制约了渤中X油田优快钻井作业。在渤海“优快钻井”“地质工程一体化”等作业思路指引下,通过利用已钻井资料对X油田火成岩录井特征和测井特征进行深入研究,在分析岩电关系的基础上,创建了适合X油田的中子孔隙度与声波时差、自然伽马与密度交会图板,并利用中子孔隙度与声波时差岩性识别图板对不同结构的火山熔岩、火山碎屑岩、火山碎屑沉积岩进行区分,利用自然伽马与密度岩性识别图板对相同结构不同成分的火山熔岩进行区分。该方法在渤中X油田火成岩识别中准确率达到90%,在此识别成果的指导下,通过优选钻头、优选钻井参数以及优选轨迹等方法,使得X油田火成岩段平均机械钻速提高10%左右,有效提高了X油田钻井作业效率,对于现场快速识别火成岩,提高整体作业时效,具有一定的指导作用。

关键词: 渤中X油田, 火成岩, 录井识别特征, 测井识别特征, 岩性识别

Abstract: The igneous rocks of Dongying Formation in Bozhong X oilfield are very developed. Due to the characteristics of poor drillability, high operation risk and complex lithology, it not only brings great challenges to the on-site mud logging, but also restricts the optimized and fast drilling operation in Bozhong X oilfield. Under the guidance of operation ideas such as optimized and fast drilling and geology-engineering integration in Bohai Sea, in-depth study was conducted on the characteristics of igneous rock mud logging and well logging in X oilfield by using the drilled well data. Based on the analysis of the relationship between lithology and electrical property, the crossplot boards of neutron and interval transit time, natural gamma and density suitable for X oilfield were created. The volcanic lavas, pyroclastic rocks and pyroclastic sedimentary rocks with different structures are distinguished by using the neutron and interval transit time lithology identification board. The volcanic lavas with the same structure and different components are distinguished by using the natural gamma and density lithology identification board. The accuracy of this method is 90% in igneous rock identification of Bozhong X oilfield. Under the guidance of the identification results, by optimizing bit, drilling parameters and well track, the average penetration rate of the igneous rock section in X oilfield is increased by 10%, which effectively improves the drilling operation efficiency of X oilfield, and plays a certain guiding role in the rapid on-site identification of igneous rocks and the improvement of overall operating efficiency.

Key words: Bozhong X oilfield, igneous rock, mud logging identification features, well logging identification features, lithology identification

中图分类号:

TE132.1

彭超, 曹军, 胡云, 苑仁国, 袁亚东. 渤中X油田火成岩井场录测综合识别方法[J]. 录井工程, 2020, 31(4): 84-90.

PENG Chao, CAO Jun, HU Yun, YUAN Renguo, YUAN Yadong. Comprehensive identification method of igneous rock wellsite mud logging and well logging in Bozhong X oilfield[J]. Mud Logging Engineering, 2020, 31(4): 84-90.

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渤中X油田火成岩井场录测综合识别方法

Comprehensive identification method of igneous rock wellsite mud logging and well logging in Bozhong X oilfield

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