• ISSN 2097-1893
  • CN 10-1855/P

南堡4号构造东营组岩石物理相特征及其分类评价

陈晶莹 曾静波 赵建斌 殷秋丽 牛爱荣

引用本文: 陈晶莹,曾静波,赵建斌,殷秋丽,牛爱荣. 2024. 南堡4号构造东营组岩石物理相特征及其分类评价. 地球与行星物理论评(中英文),55(2):248-256
Chen J Y, Zeng J B, Zhao J B, Yin Q L, Niu A R. 2024. Petrophysical facies characteristics and classification evaluation of Dongying Formation of Nanpu No. 4 structure. Reviews of Geophysics and Planetary Physics, 55(2): 248-256 (in Chinese)

南堡4号构造东营组岩石物理相特征及其分类评价

doi: 10.19975/j.dqyxx.2022-075
基金项目: 中石油集团重大科技专项:测井重大技术现场试验与集成配套(2019D-3809);中国石油集团测井有限公司十大科技项目:项目八课题一“岩石物理实验分析技术研究与应用”(CNLC2022-08B01)
详细信息
    作者简介:

    陈晶莹(1982-),女,工程师,主要从事测井综合解释与评价. E-mail:jingyingchen@petrochina.com.cn

    通讯作者:

    曾静波(1988-),男,工程师,主要从事非常规测井综合解释与评价方面的研究. E-mail: zengjingbo2014@cnpc.com.cn

  • 中图分类号: P313

Petrophysical facies characteristics and classification evaluation of Dongying Formation of Nanpu No. 4 structure

Funds: Supported by the Major Science and Technology Project of Petrochina: Field Test and Integration of Major Logging Technology (Grant No. 2019D-3809), and the Top Ten Science and Technology Projects of China National Logging Corporation : Project 8 Subject 1 "Research and Application of Petrophysical Experimental Analysis Technology" (Grant No. CNLC2022-08B01)
  • 摘要: 南堡凹陷4号构造晚期成岩作用强烈、储层非均质性强、孔隙结构复杂,导致优质储层岩石物理特征不清及储层有效性评价难. 针对这一难题,综合利用岩心薄片鉴定、扫描电镜、X全岩衍射、毛管实验及测录、试油等数据对储层的沉积特征、成岩特征及孔隙结构特征开展相控研究,研究结果表明研究区东二、东三段沉积相主要发育辫状河三角洲相,沉积微相主要发育水下分流河道、分流间湾、河口坝等;依据成岩作用及矿物类型将成岩相划分为弱溶蚀相、黏土矿物充填相、碳酸盐胶结相、压实致密相四类;根据储层物性及压汞等数据将孔隙结构相划分为Ⅰ类大孔粗喉型、Ⅱ类大孔中喉型、Ⅲ类中孔细喉型、Ⅳ类小孔微喉型. 基于沉积、成岩、孔隙结构三种特征单元叠加聚类分析将储层岩石物理相划分为PF1-PF4四类,其中PF1为油气及油水产能高的优势储层,PF2为产能一般的含油储层,PF3为需要储层改造才有产能的较差储层,PF4为无效储层,通过测井响应规律建立岩石物理相分类评价标准,为研究区储层有效性评价、优势储层预测以及后续的滚动开发提供了技术支撑和坚实的理论基础.

     

  • 图  1  南堡凹陷区域构造图(司兆伟等,2019

    Figure  1.  Regional structure map of Nanpu depression(Si et al., 2019

    图  2  南堡凹陷4号构造东营组孔渗关系图

    Figure  2.  Pore permeability relationship diagram of Dongying Formation in No. 4 structure of Nanpu sag

    图  3  南堡4号构造东营组东二、东三段成岩作用特征. (a)NP43-X4830,3859.05 m,线接触、颗粒紧密排列,孔隙差,压实作用强;(b)NP43-X4830,3854.27 m,石英岩岩屑,石英次生加大,方解石胶结;(c)NP4-31,3970.9 m,铁白云石连晶胶结;(d)NP4-31,3939.66 m,粒间高岭石、伊蒙混层等黏土填隙物及微孔;(e)NP43-X4830,3864.39 m,长石蚀变深;(f)NP4-39,4443.27 m,颗粒溶蚀形成溶蚀孔隙及粒间残余孔缝

    Figure  3.  Diagenesis characteristics of the 2nd and 3rd members of Dongying Formation in Nanpu No. 4 structure. (a) NP43-X4830, 3859.05 m; (b) NP43-X4830, 3854.27 m; (c) NP4-31, 3970.9 m; (d) NP4-31, 3939.66 m; (e) NP43-X4830, 3864.39 m; (f) NP4-39, 4443.27 m

    图  4  南堡4号构造东营组东二、东三段孔喉类型. (a)NP43-X4830,3855.99 m;(b)NP43-X4830,3849.38 m;(c)NP43-X4830,3972.04 m;(d)NP4-31,3972.04 m

    Figure  4.  Types of pore throat in the 2nd and 3rd members of Dongying Formation in Nanpu No. 4 structure. (a) NP43-X4830, 3855.99 m; (b) NP43-X4830, 3849.38 m; (c) NP43-X4830, 3972.04 m; (d) NP4-31, 3972.04 m

    图  5  南堡4号构造东营组东二、东三段不同孔隙结构压汞曲线特征. (a)NP43-4950,4188.84 m,一类孔隙结构;(b)NP4-66,4275.1 m,二类孔隙结构;(c)NP4-68,4605.07 m,三类孔隙结构;(d)NP4-31,3972.72 m,四类孔隙结构

    Figure  5.  Mercury injection curve characteristics of different pore structures in the 2nd and 3rd members of Dongying Formation in Nanpu No. 4 structure. (a) NP43-4950, 4188.84 m, Class I pore structure; (b) NP4-66, 4275.1 m, Class II pore structure; (c) NP4-68, 4605.07 m, Class Ⅲ pore structure; (d) NP4-31, 3972.72 m, Class Ⅳ pore structure

    图  6  NP43-X4828井东三段岩石物理相划分成果图. CAL:井径;GR:自然伽马;SP:自然电位;RLLD:深侧向电阻率;RLLS:浅侧向电阻率;MSFL:微球电阻率;CNL:中子;DEN:密度;AC:声波;POR:孔隙度;PERM:渗透率;SH:泥质含量;SAND:砂岩含量

    Figure  6.  Petrophysical phase division results of the 3rd member of well NP43-X4828. CAL: caliper; GR: gamma ray; SP: spontaneous potential; RLLD: deep resistivity; RLLS: shallow resistivity; MSFL: microsphere resistivity; CNL: neutron porosity; DEN: bulk density; AC: compressional slowness; POR: porosity; PERM: permeability; SH: shale volume; SAND: sand volume

    表  1  不同成岩相地质及测井响应特征

    Table  1.   Geological and logging response characteristics of different diagenetic facies

    成岩作用类型 成岩相 岩性 硅酸盐含量 泥质含量 碳酸盐含量 自然伽马 电阻率 声波 密度 中子
    破坏性 压实致密相 粉砂岩、
    泥岩
    较低 较高 较低 高值 中-高值 中等 高值 中等
    碳酸盐胶结相 细砂岩、
    粉砂岩
    较低 较低 较高 低值 高值 低值 高值 低值
    黏土矿物充填相 细砂岩、
    粉砂岩
    低-中等 较高 较低 中等 低值 中-高值 低-中等 中等
    建设性 弱溶蚀相 中砂岩、
    细砂岩
    较高 较低 较低 低值 中-高值 中-高值 低值 中等
    下载: 导出CSV

    表  2  南堡4号构造东营组东二、东三段不同孔隙结构相划分标准

    Table  2.   Different pore structure phase classification criteria of the 2nd and 3rd members of Dongying Formation in Nanpu No. 4 structure

    孔隙结构相 Ⅰ类大孔粗喉型 Ⅱ类大孔中喉型 Ⅲ类中孔细喉型 Ⅳ类小孔微喉型
    孔隙度/% >15 >15 >10 <10
    渗透率/(10−3 m2) >10 1~10 0.1~1 <0.1
    排驱压力/MPa <0.1 0.1~0.5 0.5~2 >2
    平均孔喉半径/μm >1.2 0.45~1.2 0.2~0.45 <0.2
    分选系数 >1.5 0.45~1.5 0.15~0.45 <0.15
    下载: 导出CSV

    表  3  南堡4号构造东营组东二、东三段不同岩石物理相划分标准

    Table  3.   Petrophysical facies division criteria of the 2nd and 3rd members of Dongying Formation in Nanpu No. 4 structure

    岩石
    物理相
    自然
    伽马/API
    电阻率/
    (Ω·m)
    声波/
    (us·ft−1)
    密度/
    (g·cm−3)
    中子/% 沉积微相 成岩相 孔隙结构相
    PF1 60~80 4~15 80~95 2.2~2.4 15~25 水下分流河道、河口坝 弱溶蚀相 Ⅰ类
    PF2 60~85 5~20 75~85 2.3~2.5 10~20 水下分流河道、河口坝 弱溶蚀、黏土矿物填充相 Ⅱ类或Ⅲ类
    PF3 60~100 5~15 65~80 2.35~2.55 5~20 水下分流河道、河口坝 压实致密、碳酸盐胶结相 Ⅲ类或Ⅳ类
    PF4 85~120 2~7 70~110 1.8~2.55 15~40 分流间湾 压实致密、碳酸盐胶结相 Ⅳ类
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-11-22
  • 修回日期:  2023-01-09
  • 录用日期:  2023-01-18
  • 网络出版日期:  2023-02-06
  • 刊出日期:  2024-03-01

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