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Identification of Abandoned Channels in Meander River and Impact on Horizontal Well Landing Design in Low Oil Column Reservoir: A Case Study of Lm943Sand of Caofeidian Oilfield in Bohai Bay Area(PDF)

《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

Issue:
2015年04期
Page:
480-
Research Field:
Publishing date:

Info

Title:
Identification of Abandoned Channels in Meander River and Impact on Horizontal Well Landing Design in Low Oil Column Reservoir: A Case Study of Lm943Sand of Caofeidian Oilfield in Bohai Bay Area
Author(s):
HU Shuyong1 LI Yongkai1 MA Chao12 YIN Zhaoyun3 CHEN Li4
(1.State Key Laboratory of Petroleum Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan610500,China;2.Xinmin Oil Production Plant, Jilin Oilfield Company, PetroChina, Songyuan, Jilin138000, China;3.CNOOC Shenzhen Branch, PetroChina, Shenzhen, Guangdong518000, China;4.Bohai Drilling Engineering Co., Ltd, PetroChina, Tianjin300457, China)
Keywords:
low permeability reservoir startup pressure gradient displacement pressure gradient limit well spacing
PACS:
TE313.4
DOI:
10.7657/XJPG20150418
Abstract:
The producer?injector spacing corresponding to the minimum displacement pressure gradient overcoming the start?up pressure gradient in low permeability reservoir is the limit well spacing for establishing effective displacement pressure system between producer and injector. According to producer?injector model of aniso?production one?source and one?convergence point, a new formula for displacement pressure gradient in main stream line between producer?injector is deduced and applied to Fuyang reservoir in Xinmin oilfield which belongs to a typical low porosity and low permeability reservoir. This paper takes account of the real status of the reservoir development and determines the limit well spacing for it by this new method. Comparing common calculation methods available, the result shows it can be well applied in practice

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Last Update: 2015-09-22