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陆相页岩层系岩心中气态烃井场测定技术初步应用及展望

贾梦瑶 鲍云杰 李志明 申宝剑 曹婷婷 刘鹏 杨振恒 卢龙飞 黎茂稳

贾梦瑶, 鲍云杰, 李志明, 申宝剑, 曹婷婷, 刘鹏, 杨振恒, 卢龙飞, 黎茂稳. 陆相页岩层系岩心中气态烃井场测定技术初步应用及展望[J]. 石油实验地质, 2024, 46(1): 183-190. doi: 10.11781/sysydz202401183
引用本文: 贾梦瑶, 鲍云杰, 李志明, 申宝剑, 曹婷婷, 刘鹏, 杨振恒, 卢龙飞, 黎茂稳. 陆相页岩层系岩心中气态烃井场测定技术初步应用及展望[J]. 石油实验地质, 2024, 46(1): 183-190. doi: 10.11781/sysydz202401183
JIA Mengyao, BAO Yunjie, LI Zhiming, SHEN Baojian, CAO Tingting, LIU Peng, YANG Zhenheng, LU Longfei, LI Maowen. Preliminary application and prospect of well site determination technology of gaseous hydrocarbon in continental shale cores[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2024, 46(1): 183-190. doi: 10.11781/sysydz202401183
Citation: JIA Mengyao, BAO Yunjie, LI Zhiming, SHEN Baojian, CAO Tingting, LIU Peng, YANG Zhenheng, LU Longfei, LI Maowen. Preliminary application and prospect of well site determination technology of gaseous hydrocarbon in continental shale cores[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2024, 46(1): 183-190. doi: 10.11781/sysydz202401183

陆相页岩层系岩心中气态烃井场测定技术初步应用及展望

doi: 10.11781/sysydz202401183
基金项目: 

国家自然科学基金项目 42090022

中国石化科技部项目 KLP23017

详细信息
    作者简介:

    贾梦瑶(1994-), 女, 硕士, 工程师, 从事页岩油气评价研究。E-mail: jiamy975.syky@sinopec.com

    通讯作者:

    鲍云杰(1963-), 男, 研究员, 从事测试技术与页岩油气评价研究。E-mail: baoyj.syky@sinopec.com

  • 中图分类号: TE135

Preliminary application and prospect of well site determination technology of gaseous hydrocarbon in continental shale cores

  • 摘要: 陆相页岩层系的流体分析是页岩油甜点评价的重要基础,针对岩心样品中气态烃易于散失的特性和页岩油钻井现场的需求,研发了井场岩心气态烃快速采集测定装置及方法,探讨了基于岩心气态烃分析和热解含油性分析资料快速计算视气油比和估算游离油损失的方法。研究表明,该装置适用于全直径岩心和块状样品的气态烃检测,既可以实现全直径岩心在常温、常压下逸散气态烃的采集测定,也可以测定块状岩心样品的气态烃总量,气态烃检测相对误差10%,测试结果可以转换为单位质量岩样气态烃含量。全直径岩心逸散气分析可实现岩心气态烃的非破坏式采集和测定,反映了页岩层系垂向上含油气性及其非均质性的变化特征。视气油比可反映页岩层系含油气性和可流动性的趋势,视气油比越大,代表相应页岩层系页岩油可流动性越好。利用视气油比可估算岩心经历降压降温脱气过程中游离烃的损失量,在建立岩心降温降压脱气过程的热解游离烃损失恢复方法中具有较大应用潜力。岩心气态烃井场测定技术丰富了适用于井场的岩心流体分析实验技术手段和方法,为陆相页岩层系流体评价及甜点确定提供数据支撑。

     

  • 图  1  岩心气态烃采集测定仪组成示意

    Figure  1.  Composition of core gaseous hydrocarbon collection and measurement instrument

    图  2  红外全烃气体检测仪及其原理

    Figure  2.  Infrared total hydrocarbon gas detector and schematic diagram

    图  3  渤海湾盆地沾化凹陷A1井气态烃与热解参数综合评价

    YSQ为岩心出筒后放置于分段密封筒中,在常温常压下放置1 h测得的单位质量岩心的逸散气含量。

    Figure  3.  Comprehensive evaluation of gaseous hydrocarbon and pyrolysis parameters in well A1, Zhanhua Sag, Bohai Bay Basin

    图  4  渤海湾盆地沾化凹陷A1井气态烃与热解、油饱和指数相关关系

    Figure  4.  Correlation between gaseous hydrocarbon and pyrolysis and oil saturation index of well A1 in Zhanhua Sag, Bohai Bay Basin

    图  5  视气油比评价图版

    Figure  5.  Evaluation of apparent gas-oil ratio

    表  1  气态烃测试井基本数据

    Table  1.   Basic data of gas hydrocarbon test wells

    井号 层位 视气油比/(cm3/g) 样品数量/ 件 热解游离油平均值/(mg/g) 压裂求产情况/ (t/d)
    范围 平均值
    苏北盆地B1井 阜二段 35~71 51 8 2.20 22
    苏北盆地B2井 阜二段 9~398 58 28 2.72 30
    渤海湾盆地A1井 沙河街组 14~268 74 13 2.28 150
    渤海湾盆地A2井 沙河街组 11~149 53 37 4.51 求产未稳
    南襄盆地C井 核三段 4~79 14 48 2.67 未求产
    下载: 导出CSV

    表  2  渤海湾盆地A1井沙河街组游离油损失恢复数据

    Table  2.   Loss and recovery data of free oil in Shahejie Formation, well A1, Bohai Bay Basin

    样号 气态烃总量/ (cm3/g) 游离油量/ (mg/g) 视气油比/ (cm3/g) 折算视气油比/ (cm3/cm3) 游离油损失量/ (mg/g) 恢复后游离油量/ (mg/g) 游离油损失量占比/% 油饱和度/ % 恢复后油饱和度/% 油饱和度差值/%
    1 0.147 1.75 83.9 71.3 2.07 3.82 54.1 10.50 22.90 12.40
    2 0.139 1.50 92.6 78.7 1.81 3.31 54.7 9.00 19.88 10.88
    3 0.178 1.49 119.6 101.6 1.93 3.42 56.4 8.94 20.50 11.56
    4 0.111 2.58 43.0 36.6 2.72 5.30 51.3 15.48 31.77 16.29
    5 0.088 2.37 37.2 31.6 2.45 4.82 50.8 14.22 28.93 14.71
    6 1.070 4.00 267.6 227.4 7.03 11.03 63.8 24.00 66.21 42.21
    7 0.234 2.91 80.5 68.4 3.41 6.32 53.9 17.46 37.89 20.43
    8 0.304 2.80 108.5 92.3 3.52 6.32 55.7 16.80 37.94 21.14
    9 0.140 3.00 46.6 39.6 3.19 6.19 51.5 18.00 37.15 19.15
    10 0.105 1.76 59.5 50.6 1.94 3.70 52.5 10.56 22.22 11.66
    11 0.052 1.84 28.4 24.1 1.85 3.69 50.2 11.04 22.15 11.11
    下载: 导出CSV
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  • 收稿日期:  2023-04-17
  • 修回日期:  2023-12-17
  • 刊出日期:  2024-01-28

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