|Table of Contents|

Characteristics of interbeds in thick reservoir and application in potential tapping of residual oil(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2012年第01期
Page:
35-39，54
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Characteristics of interbeds in thick reservoir and application in potential tapping of residual oil
Author(s):
YU Cheng-lin1; 2;  GUO Dian-bin2;  XIONG Yun-bin2;  CHEN De-bin2;  ZENG Ping2;  ZHOU Kai2;  CHANG Zhen-qiang3
1. Postdoctorate Research Station, Nanjing University, Nanjing 210093, Jiangsu, China; 2. Research Instituteof Exploration and Development, Zhongyuan Oilfield Company, Sinopec, Puyang 457001, Henan, China; 3. Chunliang Oil Plant, Shengli Oilfield Company, Sinopec, Dongying 256504, Shandong, China
Keywords:
thick reservoir;  interbed;  residual oil;  potential tapping;  Shahejie Formation;  Paleogene;  Dongpu Sag
PACS:
P618.130.2
DOI:
-
Abstract:
Based on the static and dynamic combination researches about the information of cores, well logging and well production performance,the characteristic, genesis, distribution of interbeds in thick reservoir of Paleogene Shahejie Formation in Dongpu Sag and their application in potential tapping of residual oil were studied. The results showed that the interbeds could be divided into muddy, physical and calcareous interbeds according to the category and electrics character of rocks; the muddy interbed was major, the muddy and physical interbeds were formed by sedimentation, and calcareous interbed were formed by diagenesis. According to the space shape, the interbeds could be divided into stratiform continuous, sheet uncontinuous and irregular scouring-filling types. The statistical results showed that the interbeds, in which the transverse extension was stable and the relative property was strong, were about 30% of the total interbeds; the interbeds, in which the transverse extension was unstable and the space distribution was random, were about 70%. The space distribution of interbed and the injection and production scheme controlled the different distribution pattern of residual oil in thick reservoir. The prediction accuracy on the residual oil in thick reservoir was improved effectively. According to the characteristics of residual oils controlled by the interbeds with different space distributions, some measures and methods including horizontal well, well pattern conversion and perforations added were effectively used to find the residual oil.

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Last Update: 2012-03-20