[1]丁 圣,刘金华,林 波.高邮凹陷南断阶致密砂岩储层评价方法[J].复杂油气藏,2022,15(03):11-16.[doi:10.16181/j.cnki.fzyqc.2022.03.003]
 DING Sheng,LIU Jinhua,LIN Bo.Evaluation method for tight sandstone reservoir in south fault terraceof Gaoyou Sag[J].Complex Hydrocarbon Reservoirs,2022,15(03):11-16.[doi:10.16181/j.cnki.fzyqc.2022.03.003]
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高邮凹陷南断阶致密砂岩储层评价方法()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年03期
页码:
11-16
栏目:
非常规油气
出版日期:
2022-10-25

文章信息/Info

Title:
Evaluation method for tight sandstone reservoir in south fault terraceof Gaoyou Sag
作者:
丁 圣1刘金华2林 波3
1.中国石化石油物探技术研究院,江苏 南京 211103;2. 西南石油大学地球科学与技术学院,四川 成都 610500;3. 中国石化江苏油田分公司勘探开发研究院,江苏 扬州225009
Author(s):
DING Sheng 1 LIU Jinhua2 LIN Bo3
1. Sinopec Geophysical Research Institute,Nanjing 211103,China;2. School of Geosciences and Technology,Southwest Petroleum University,Chengdu 610500,China;3. Exploration and Development Research Institute of Jiangsu Oilfield Company,SINOPEC,Yangzhou 225009,China
关键词:
致密砂岩储层胶结作用储层评价相对优势储层高邮凹陷
Keywords:
tight sandstone reservoircementationreservoir evaluationcomparative advantage reservoirGaoyou Sag
分类号:
TE321
DOI:
10.16181/j.cnki.fzyqc.2022.03.003
文献标志码:
A
摘要:
储层评价对致密砂岩油藏的有效开发至关重要。在总结前人致密砂岩储层评价方法的基础上,针对高邮凹陷南断阶致密砂岩储层特征,通过取心井与常规井结合,测井与地质结合,常规实验与特殊实验技术结合,从致密砂岩储层成因入手,分析储层的储集能力和渗流能力,由特殊向普遍推广延伸评价,探索相对优势储层。研究表明:南断阶致密砂岩储层成因主要为胶结作用,胶结物主要为碳酸盐类的方解石和白云石。不同渗透率级别的储层,渗透率越高,储层潜力越大;相同渗透率级别的储层,中等胶结类潜力优于强胶结类。自然电位幅度差≥20 mV,声波时差值≤235 μs/m的储层属于致密砂岩储层;声波时差值为225~235 μs/m的储层属于致密砂岩中的相对优势储层。
Abstract:
Effective tight sandstone reservoir development depends on reservoir evaluation. According to the characteristics of tight sandstone reservoirs in the southern fault stage of Gaoyou Sag,through a combination of coring wells and conventional wells,logging and geology,and conventional experiments and special experimental techniques,starting from the genetic analysis of tight sandstone reservoirs,the reservoir capacity and seepage capacity of the reservoirs are analyzed based on a summary of previous evaluation methods of tight sandstone reservoirs. The special to the general evaluation is expanded,and the relatively favorable reservoirs are investigated. According to the findings,cementation is primarily responsible for forming the tight sandstone reservoirs in the south step-fault,and the cement is made primarily of calcite and dolomite. The potential of a reservoir increases with increasing permeability for reservoirs with different levels of permeability. A medium cement reservoir has greater potential than a strong cement reservoir for reservoirs with the same level of permeability. The tight sandstone reservoir has an acoustic value of less than or equal to 235 μs/m and a spontaneous potential differential larger than or equal to 20 mV. The reservoirs with the acoustic time difference of 225-235 μs/m belong to the relatively dominant reservoirs in the tight sandstone.

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备注/Memo

备注/Memo:
收稿日期:2022-02-15;改回日期:2022-03-06。
第一作者简介:丁圣(1978—),博士,高级工程师,长期从事开发地质和地震地质综合评价工作。E-mail:ds3108@126.com。
更新日期/Last Update: 2023-08-28