Point bar configuration and residual oil analysis based on core and dense well pattern

被引：0

作者：

Yan, Baiquan ^{[1
,2
]}

Zhang, Xinlei ^{[1
]}

Yu, Limin ^{[3
]}

Zhang, Dong ^{[4
]}

Jiang, Guipu ^{[4
]}

Yang, Yongjie ^{[5
]}

Sun, Yu ^{[1
,2
]}

Han, Xiaolong ^{[1
]}

Xu, Yagang ^{[6
]}

机构：

[1] Heilongjiang Oil and Gas Reservoir Forming Mechanism and Resource Evaluation Key Laboratory, Northeast Petroleum University, Daqing

[2] State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu

[3] Exploration and Development Research Institute, PetroChina Jilin Oilfield Company, Songyuan

[4] No.4 Oil Production Company, PetroChina Daqing Oilfield Company Limited, Daqing

[5] Changqing Business Department, China National Petroleum Logging Co. Ltd., Xi'an

[6] China Petroleum Iraqi Corporation, Beijing

来源：

Shiyou Kantan Yu Kaifa/Petroleum Exploration and Development | 2014年 / 41卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Configuration; Dense well pattern; Lateral accretion body; Lateral accretion interbed; Point bar; Residual oil; Single sand body; Thin interbed;

D O I：

10.11698/PED.2014.05.12

中图分类号：

学科分类号：

摘要：

Based on the dense well pattern and the core data of straight wells and horizontal wells of PI332 unit of Putaohua oil layer, Cretaceous Yaojia Formation in Xingbei area of Daqing Oilfield, according to the model of modern sediments and ancient outcrop, the configuration parameters of lateral interbeds configuration are acquired by rock-electricity combination, which are used to analyze the three-dimensional configuration characteristics of the point bar lateral accretion interbeds located in the meandering distributary channel of the delta distributary plain and the residual oil distribution. The results show that the lateral accretion interbeds of point bar are thin, slow, and dense in PI332 unit of Xingbei area. The thickness of interbeds is mainly 2-25 cm. The upper and lower dip angle of interbeds is smaller at 2°-5°. The middle of interbeds is steeper at 7°-10°. The plane distribution density is 0.11/m. The three-dimensional spatial configuration consists of the plane and profile features. The lateral accretion interbeds are in crescent arrangement on the plane, and in imbricate and echelon distribution on the profile. Under the influence of lateral accretion interbeds architecture and the physical difference of lateral accretions, the middle and lower parts of point bars are seriously flooded, and the residual oil is mainly distributed in the middle and upper parts. The horizontal section of a horizontal well should be designed in the middle and upper parts of point bars, and it should drill out the middle and upper parts of lateral accretion bodies to increase the supply unit and enhance oil recovery.

引用

页码：597 / 604

页数：7

共 19 条

[1]

Miall A.D., Architecture element analysis: A new method of facies analysis applied to fluvial deposits , Earth Science Review, 22, 4, pp. 261-308, (1985)

[2]

Miall A.D., Reservoir heterogeneities in fluvial sandstone: Lessons from outcrop studies , AAPG Bulletin, 72, 6, pp. 682-697, (1988)

[3]

Miall A.D., Reconstructing the architecture and sequence stratigraphy of the preserved fluvial record as a tool for reservoir development: A reality check , AAPG Bulletin, 90, 7, pp. 989-1002, (2006)

[4]

Labourdette R., Jones R.R., Characterization of fluvial architectural elements using a three-dimensional outcrop data set: Escanilla braided system, South-Central Pyrenees, Spain , Geosphere, 3, 6, pp. 422-434, (2007)

[5]

Ma S., Yang Q., The depositional model, 3-D architecture and heterogeneous model of point bar in meandering channels , Acta Sedimentologica Sinica, 18, 2, pp. 241-247, (2000)

[6]

Ma S., Sun Y., Fan G., Et al., The method for studying thin interbed architecture of burial meandering channel sandbody , Acta Sedimentologica Sinica, 26, 4, pp. 632-639, (2008)

[7]

Ghazi S., Mountney N.P., Facies and architectural element analysis of a meandering fluvial succession: The Permian Warchha Sandstone, Salt Range, Pakistan , Sedimentary Geology, 221, 1-4, pp. 99-126, (2009)

[8]

Zhou Y., Wu S., Ji B., Et al., Research progress on the characterization of fluvial reservoir architecture, Advances in Earth Science, 32, 7, pp. 695-701, (2011)

[9]

Yue D., Wu S., Tan H., Et al., An anatomy of paleochannel reservoir architecture of meandering river reservoir: A case study of Guantao Formation, the west 7th block of Gudong oilfield , Earth Science Frontiers, 15, 1, pp. 101-109, (2008)

[10]

Wu S., Yue D., Liu J., Et al., Hierarchy modeling of subsurface palaeochannel reservoir architecture , SCIENCE CHINA Earth Sciences, 38, pp. 111-121, (2008)

← 1 2 →