试油资料在渤南洼陷深部碎屑岩有效储层评价中的应用

doi:10.7623/syxb200805012

石油学报 ›› 2008, Vol. 29 ›› Issue (5): 701-706,710.DOI: 10.7623/syxb200805012

试油资料在渤南洼陷深部碎屑岩有效储层评价中的应用

王艳忠¹, 操应长¹, 宋国奇², 隋风贵², 王淑萍²

1. 中国石油大学地球资源与信息学院, 山东东营, 257061;
2. 中国石化胜利油田分公司地质科学研究院, 山东东营, 257015

收稿日期:2007-11-27 修回日期:2008-01-29 出版日期:2008-09-25 发布日期:2010-05-21
作者简介:王艳忠,男,1980年10月生,2007年获中国石油大学(华东)矿物学、岩石学、矿床学专业硕士学位,现为中国石油大学(华东)在读博士研究生,主要从事油气储层地质研究工作.E-mail:wangyanzhong1980@yahoo.com.cn
基金资助:
教育部新世纪优秀人才支持计划项目(NCET-06-0604);中国石油化工集团公司科技攻关项目(P07008)联合资助

Application of production test data to evaluation of the effective reservoir in deep clastic of Bonan Sag

WANG Yanzhong¹, CAO Yingchang¹, SONG Guoqi², SUI Fenggui², WANG Shuping²

1. Faculty of Geo-Resources and Information, China University of Petroleum, Dongying 257061, China;
2. Research Institute of Geological Science, Sinopec Shengli Oilfield Company, Dongying 257015, China

Received:2007-11-27 Revised:2008-01-29 Online:2008-09-25 Published:2010-05-21

摘要/Abstract

摘要： 利用试油资料和物性资料,求得渤南洼陷3 500~3 700m深度碎屑岩有效储层渗透率下限值为0.6×10^-3μm²、孔隙度下限值为7.45%,与用分布函数曲线法确定的物性下限值基本一致,经试油资料检验正确率为95.2%。综合考虑产液量、孔隙度差值、渗透率差值等参数,结合沉积相、岩性、地层压力等资料,将渤南洼陷埋深大于3 500m的深部碎屑岩储层划分为4类。其中:Ⅰ类、Ⅱ类、Ⅲ类为有效储层;Ⅳ类为非有效储层。Ⅰ类储层主要为扇三角洲前缘水下分流河道、河口坝和湖底扇中扇辫状水道中细砂岩和含砾砂岩,地层压力以超压为主,常规试油产液量大于5t/d;Ⅱ类储层主要为扇三角洲平原分流河道和近岸水下扇中扇辫状水道含砾砂岩,地层压力为常压,常规试油产液量为1~5t/d,实施酸化、压裂措施后产液量大于5t/d;Ⅲ类储层主要为近岸水下扇内扇主水道和扇三角洲平原分流河道砾岩或含砾砂岩,地层压力为常压,常规试油产液量小于1t/d,实施酸化、压裂措施后产液量为1~5t/d;Ⅳ类储层主要为近岸水下扇内扇主水道和洪积扇中扇辫状水道砾岩或含砾砂岩,地层压力为常压,常规试油产液量小于1t/d,实施酸化、压裂措施后产液量仍小于1t/d。

关键词: 渤南洼陷, 碎屑岩储层, 孔隙度差值, 渗透率差值, 有效储层, 储层评价, 试油资料

Abstract: The production test data and petrophysical parameter were used to determine the lower limit values of porosity and permeability,which are 7.45% and 0.6×10^-3μm² respectively in the effective clastic reservoir of the buried depth from 3 500 m to 3 700 m in Bonan Sag.The results coincide well with the values obtained by the distribution function curve method.The precision ratio checked by production test data is 95.2%.Based on the daily fluid production rate,the porosity difference,the permeability difference,sedimentary facies,lithology and reservoir pressure,the deep clastic reservoir in Bonan Sag was divided into four categories.Type-Ⅰ,type-Ⅱand type-Ⅲ reservoirs are effective ones,and type-Ⅳ reservoir is the non-effective ones.In type-Ⅰ reservoir,the distributary channel and mouth bar of fan-delta front and middle fan braided channel of sublacustrine-fan are the main sedimentary facies,sandstone and pebbled sandstone are the main rock types.The overpressure is popular in the formation.The conventional daily fluid production rate is over 5t.For type-Ⅱreservoir,the distributary channel of fan-delta plain and the middle fan braided channel of near shore-subaqueous-fan are the main sedimentary facies,and the pebbled sandstone is the main rock type.The reservoir has normal pressure.The conventional daily fluid production rate is from 1t to 5t,and the unconventional daily fluid production rate is more than 5t.For type-Ⅲ reservoir,the inner fan mainstream channel of nearshore-subaqueous-fan and the distributary channel of fan-delta plain are the main sedimentary facies,and the conglomerate and pebbled sandstone are the main rock types.The reservoir has normal pressure.The conventional daily fluid production rate is lower than 1t,and the unconventional daily fluid production rate is from 1t to 5t.For type-Ⅳ reservoir,the main stream channel of nearshore-subaqueous-fan inner fan and middle fan braided channel of proluvial-fan are the main sedimentary facies,and the conglomerate and pebbled sandstones are the main types of rock.The pressure of reservoir is normal.The conventional and unconventional daily fluid production rates are lower than 1t.

Key words: Bonan Sag, clastic reservoir, porosity difference, permeability difference, effective reservoir, reservoir evaluation, production test data

中图分类号:

TE112.23

王艳忠, 操应长, 宋国奇, 隋风贵, 王淑萍. 试油资料在渤南洼陷深部碎屑岩有效储层评价中的应用[J]. 石油学报, 2008, 29(5): 701-706,710.

WANG Yanzhong, CAO Yingchang, SONG Guoqi, SUI Fenggui, WANG Shuping. Application of production test data to evaluation of the effective reservoir in deep clastic of Bonan Sag[J]. Editorial office of ACTA PETROLEI SINICA, 2008, 29(5): 701-706,710.

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试油资料在渤南洼陷深部碎屑岩有效储层评价中的应用

Application of production test data to evaluation of the effective reservoir in deep clastic of Bonan Sag

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