三塘湖盆地芦草沟组页岩油测井评价技术进展

doi:10.7657/XJPG20200616

新疆石油地质 ›› 2020, Vol. 41 ›› Issue (6): 740-747.doi: 10.7657/XJPG20200616

三塘湖盆地芦草沟组页岩油测井评价技术进展

韩成^a(), 陈旋^b, 陈杰^a, 尹学琪^a, 张日供^a, 耿子渊^a, 彭亚中^a

a.中国石油吐哈油田分公司勘探开发研究院,新疆哈密 839009
b.中国石油吐哈油田分公司勘探公司,新疆鄯善 838202

收稿日期:2020-04-08 修回日期:2020-09-07 出版日期:2020-12-01 发布日期:2020-12-02
作者简介:韩成（1972-）,男,四川绵阳人,高级工程师,测井解释,（Tel）0902-2772653（E-mail） hancheng@petrochina.com.cn
基金资助:
中国石油科技重大专项(2017E-04-04)

Progress of Well Logging Evaluation Techniques for Shale Oil of Lucaogou Formation in Santanghu Basin

HAN Cheng^a(), CHEN Xuan^b, CHEN Jie^a, YIN Xueqi^a, ZHANG Rigong^a, GENG Ziyuan^a, PENG Yazhong^a

a. PetroChina Tuha Oilfield Company, Research Institute of Exploration and Development, Hami, Xinjiang 839009, China
b. PetroChina Tuha Oilfield Company, Exploration Department, Shanshan, Xinjiang 838202, China

Received:2020-04-08 Revised:2020-09-07 Online:2020-12-01 Published:2020-12-02

摘要/Abstract

摘要：

三塘湖盆地芦草沟组页岩油储集层岩性复杂、储集空间类型多样、源储配置关系不明,甜点特征及其分布规律不清。通过岩心刻度测井,利用测井资料对总有机碳含量和生烃潜量进行计算和评价,以点带面开展盆地内优质烃源岩的分类评价;利用核磁共振测井资料确定合理的T₂截止值和起算时间,以不同级别和类型的孔隙开展有效储集层及含油性评价,建立了有效储集层的分类及下限标准;通过多井对比和井震结合,厘清了源储间互分布、纹层状发育的特点,明确了甜点的测井响应特征及纵向上的分布规律,为页岩油甜点的预测和有利区带的优选提供了依据,实现了条34块和牛圈湖区块页岩油的产能建设和效益动用。

关键词: 三塘湖盆地, 芦草沟组, 页岩油, 甜点, 测井评价, 改进Δlg R模型, 有效储集层

Abstract:

The shale oil reservoirs of the Lucaogou formation in the Santanghu basin have complex lithologies, various types of reservoir space, and unknown source-reservoir configuration relation, thus the characteristics and distribution rule of sweet spots are unclear. Through calibrating well logging data by core, the well logging data are used to calculate and evaluate the total organic carbon content and hydrocarbon generation potential, then high-quality source rocks in the basin are the classified and evaluated. Reasonable T₂ cutoff value and starting time are determined by NMR logging data, the effective reservoirs and oil-bearing property are evaluated according to different grades and types of pores, and the classification and lower limit standards of effective reservoirs are established. Through multi-well comparison and logging-seismic combination, the mutual distribution between source and reservoir and the characteristics of lamellar development are clarified, and the well logging response characteristics and longitudinal distribution of sweet spots are defined. The research results provide a basis for the prediction of shale oil sweet spots and the optimization of favorable zones. The shale oil production capacity construction and efficient producing in Block Tiao 34 and Block Niujuanhu have been realized.

Key words: Santanghu basin, Lucaogou formation, shale oil, sweet spot, well logging evaluation, improved Δlg R model, effective reservoir

中图分类号:

TE112.24

韩成, 陈旋, 陈杰, 尹学琪, 张日供, 耿子渊, 彭亚中. 三塘湖盆地芦草沟组页岩油测井评价技术进展[J]. 新疆石油地质, 2020, 41(6): 740-747.

HAN Cheng, CHEN Xuan, CHEN Jie, YIN Xueqi, ZHANG Rigong, GENG Ziyuan, PENG Yazhong. Progress of Well Logging Evaluation Techniques for Shale Oil of Lucaogou Formation in Santanghu Basin[J]. Xinjiang Petroleum Geology, 2020, 41(6): 740-747.

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三塘湖盆地芦草沟组页岩油测井评价技术进展

Progress of Well Logging Evaluation Techniques for Shale Oil of Lucaogou Formation in Santanghu Basin

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