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[1]李泉泉 马世忠 胡光义 梁 旭 张雨晴 张斌弛 邵世国 王克东.断陷盆地斜坡带三角洲前积型层序精细对比方法——以渤海SZ油田东营组二段下亚段为例[J].中国海上油气,2020,32(04):85-95.[doi:10.11935/j.issn.1673-1506.2020.04.010]
 LI Quanquan MA Shizhong HU Guangyi LIANG Xu ZHANG Yuqing ZHANG Binchi SHAO Shiguo WANG Kedong.Delta progradational fine sequence correlation method for the slope belts offault basin: A case study of the lower second Member of the PalaeogeneDongying Formation in Bohai SZ oilfield[J].China Offshore Oil and Gas,2020,32(04):85-95.[doi:10.11935/j.issn.1673-1506.2020.04.010]
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断陷盆地斜坡带三角洲前积型层序精细对比方法——以渤海SZ油田东营组二段下亚段为例()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第32卷
期数:
2020年04期
页码:
85-95
栏目:
油气田开发
出版日期:
2020-07-25

文章信息/Info

Title:
Delta progradational fine sequence correlation method for the slope belts of fault basin: A case study of the lower second Member of the Palaeogene Dongying Formation in Bohai SZ oilfield
文章编号:
1673-1506(2020)04-0085-11
作者:
李泉泉12 马世忠1 胡光义3 梁 旭3 张雨晴3 张斌弛1 邵世国1 王克东4
(1. 东北石油大学地球科学学院 黑龙江大庆 163318; 2. 中国石油大学(北京)地球科学学院 北京 102249; 3. 中海油研究总院有限责任公司 北京 100028; 4. 中国电子科技集团公司第四十一研究所 山东青岛 266555)
Author(s):
LI Quanquan12 MA Shizhong1 HU Guangyi3 LIANG Xu3 ZHANG Yuqing3 ZHANG Binchi1 SHAO Shiguo1 WANG Kedong4
(1. Geoscience College, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2.College of Geosciences, China University of Petroleum, Beijing 102249, China; 3.China General Institute of Marine Petroleum Research, Beijing 100028, China; 4.
关键词:
断陷盆地斜坡带 三角洲前缘 前积角度计算方法 前积层 高分辨率等时地层格架
Keywords:
slope belts of fault basin delta front progradation angle computing method foreset bed high resolution isochronal stratigraphic framework
分类号:
TE32+1
DOI:
10.11935/j.issn.1673-1506.2020.04.010
文献标志码:
A
摘要:
断陷盆地斜坡区地形坡度变化较大,地层厚度有一定差异,实现层序等时对比有一定困难。以渤海SZ油田东营组二段下部I、Ⅱ油层组为例,基于高分辨率层序地层学、沉积学、地震沉积学等,利用测井、地震、岩心等资料,识别出研究区目的层为三角洲前缘前积型层序; 通过分频解释与地震正演模拟等,确定了前积层类型为无顶积层型。在标志层的控制下,通过地震反射轴形态将SSC1、SSC4短期旋回平面上划分为单相位轴、复相位轴、分叉单相位轴与分叉复相位轴等4个区域,提出了分区域前积角度计算方法,即在目的层顶部标志层拉齐的情况下,通过地震剖面与井间剖面相结合,依据前积层井间厚度变化确定各区域前积角度; 由于单相位轴区域近似等厚,采用了近水平模式对比。按照不同级次基准面旋回的变化,将研究区目的层划分为2个中期(MSC)、14个短期(SSC)和26个超短期(SSSC)基准面旋回,建立了中期、短期基准面旋回高分辨率等时地层格架,并完成了超短期旋回的等时对比
Abstract:
Quantitatively characterizing the change laws of effective reserves production before and after the overall infilling and adjustment of well pattern in low permeability reservoir is the basis for formulating the development and adjustment strategies of oilfields reasonably. Based on the overall infilling and adjustment mode of inverted nine spot well pattern in an actual low permeability oilfield, by using the potential superposition principle, the calculation formula of percolation field distribution in development unit that reflects the actual well pattern has been obtained, the concept of “effective driving pressure gradient” is proposed to reflect the producing degree of fluids in flooding units, and the relationship between the effective driving pressure gradient in different regions and the control range of flooding unit have been statistically analyzed. Then, an evaluation method to quantitatively describe the effective production laws of reserves under different well patterns is established. The research shows that after the overall infilling of a basic well pattern, the well spacing decreases and the inter-well driving pressure gradient increases; when the original well spacing is greater than 300 m, well pattern infilling can greatly improve production degree of reserves, which is the focus of well pattern infilling and adjustment; when the original well spacing is less than 200 m, there is little potential for well pattern infilling to enhance production degree of reserves. However, if the reservoir is thick, infilling can be carried out if necessary

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备注/Memo

备注/Memo:
收稿日期:2019-10-12 改回日期:2020-01-23*“十三五”国家科技重大专项子课题“海上三角洲沉积油田整体加密后提高水驱采收率技术研究(编号:2016ZX05025-001-002)”部分研究成果。 第一作者简介: 李泉泉,男,博士研究生,矿产普查与勘探专业。地址:北京市昌平区府学路18号(邮编:102249)。E-mail:13069695235@163.com。 通信作者简介: 马世忠,男,博士,教授,主要从事沉积学、油气田开发地质研究。地址:黑龙江省大庆市高新技术产业开发区学府街99号
更新日期/Last Update: 2020-07-20