[1]张志虎,孙玉红,谭伟雄,等.渤海孔店组砂砾岩储层测井评价方法研究[J].复杂油气藏,2024,17(01):50-58.[doi:10.16181/j.cnki.fzyqc.2024.01.008]
 ZHANG Zhihu,SUN Yuhong,TAN Weixiong,et al.Study on logging evaluation method for sandstone conglomerate reservoirs in the Kongdian Formation of Bohai sea[J].Complex Hydrocarbon Reservoirs,2024,17(01):50-58.[doi:10.16181/j.cnki.fzyqc.2024.01.008]
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渤海孔店组砂砾岩储层测井评价方法研究()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
17卷
期数:
2024年01期
页码:
50-58
栏目:
油气勘探
出版日期:
2024-03-25

文章信息/Info

Title:
Study on logging evaluation method for sandstone conglomerate reservoirs in the Kongdian Formation of Bohai sea
作者:
张志虎 孙玉红谭伟雄许胜利李 辉李文元
中海油能源发展股份有限公司工程技术分公司,天津 300452
Author(s):
ZHANG ZhihuSUN YuhongTAN WeixiongXU ShengliLI HuiLI Wenyuan
Ener Tech-Drilling & Production Co.,CNOOC Energy Development Co. Ltd.,Tianjin 300452,China
关键词:
砂砾岩阿尔奇方程含气饱和度相渗实验测试产能
Keywords:
sandy conglomerateArchie equationgas saturationphase permeability experimenttest productivity
分类号:
TE122.2
DOI:
10.16181/j.cnki.fzyqc.2024.01.008
文献标志码:
A
摘要:
渤海M气田古近系孔店组发育有残积/坡积、冲积两套不同沉积类型的砂砾岩,其在黏土矿物、力学性质、孔隙结构上均存在较大的差异性,导致两套砂砾岩含气饱和度下限及测试产能的差异较大;此外电阻率曲线受砾石和低孔低渗的影响,对气层和非气层的区分不明显,利用阿尔奇方程求取的含气饱和度与测试结果常常相互矛盾,给储层定量评价造成了较大困难。通过气水相渗实验确定两类砂砾岩含气饱和度下限的条件下,基于砂砾岩岩石体积物理模型,利用中子和密度测井响应方程构建含气饱和度模型。经过3口井的测试产能验证,与阿尔奇方程相比,新模型计算的含气饱和度在气层和非气层上差异更明显,解释的结果与测试产能更相符。
Abstract:
In the M Gasfield of Bohai Sea,there are two sets of gravels with different sedimentary types in the Paleogene Kongdian Formation,namely,residual/slope and alluvial,which have significant differences in clay minerals,mechanical properties,and pore structure,resulting in substantial differences in the lower limit of the gas saturation and the test productivity between the two sets of gravels. In addition,the resistivity curves are affected by the gravels and the low porosity and low permeability. The distinction between gas and non-gas layers is not apparent. The gas saturation obtained using the Archie equation often contradicts the test results,making it difficult to evaluate the reservoir quantitatively. Under the condition that the lower limit of gas saturation of two types of sandy conglomerate is determined by gas-water permeability experiments,based on the rock volume physical model of sandy conglomerate,a gas saturation model is constructed by using neutron and density logging response equations. After verifying the test productivity of three wells,compared with the Archie equation,the gas saturation calculated by the new model has more apparent differences between gas and non-gas layers,and the interpreted results are more consistent with the test productivity.

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备注/Memo

备注/Memo:
收稿日期:2023-06-28;改回日期:2023-10-12。
第一作者简介:张志虎(1986—),高级工程师,研究方向随钻地质评价。E-mail: zhangzhh56@cnooc.com.cn。
基金项目:中海石油(中国)有限公司科技项目“储层有效性录测一体化定量评价技术研究”(项目编号:YXKY-2019-TJ-03);中海石油(中国)有限公司“十四五”重大专项“海上深层/超深层油气勘探地质作业关键技术研究”(KJGG2022-0405)。
更新日期/Last Update: 2024-03-25