[1]曹 洪,罗立娟,李照永,等.大庆外围低渗透裂缝性油层剩余油预测方法[J].复杂油气藏,2019,12(03):41-45.[doi:10.16181/j.cnki.fzyqc.2019.03.008]
　CAO Hong,LUO Lijuan,LI Zhaoyong,et al.Remaining oil prediction method for low permeabilityfractured reservoir in peripheral area of Daqing[J].Complex Hydrocarbon Reservoirs,2019,12(03):41-45.[doi:10.16181/j.cnki.fzyqc.2019.03.008]
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大庆外围低渗透裂缝性油层剩余油预测方法()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
12卷
期数:
2019年03期
页码:
41-45
栏目:
油气开发
出版日期:
2019-09-25

文章信息/Info

Title:
Remaining oil prediction method for low permeabilityfractured reservoir in peripheral area of Daqing
作者:
曹 洪1; 罗立娟2; 李照永1; 袁 娜1
1.中国石油大庆油田有限责任公司勘探开发研究院,黑龙江 大庆 163712; 2.中国石油大庆油田有限责任公司第十采油厂,黑龙江 大庆 166405
Author(s):
CAO Hong1; LUO Lijuan2; LI Zhaoyong1; YUAN Na1
1.Exploration & Development Research Institute of Daqing Oilfield Co. Ltd., CNPC, Daqing 163712, China; 2. No.10 Oil Production Plant of Daqing Oilfield Co. Ltd., CNPC, Daqing 166405,China
关键词:
低渗透 裂缝 扶杨油层 剩余油预测
Keywords:
low permeability;  fracture;  Fuyang oil layer;  remaining oil prediction
分类号:
TE327
DOI:
10.16181/j.cnki.fzyqc.2019.03.008
文献标志码:
A
摘要:
大庆外围扶杨油层受成岩作用影响,储层随埋藏深度的增加物性变差。在低渗透多重介质中,受启动压力梯度和部分区块裂缝的影响,存在注采井距过大而形成的井网控制不住Ⅱ型剩余油和裂缝干扰而形成的平面干扰Ⅱ型剩余油。利用坐标转换将天然裂缝性油层转化为等效各向同性油层,建立基于裂缝及非达西的油水两相渗流方程; 基于流管法油水两相前缘推进理论,通过单管前缘推进方程可计算某一时间的含水率导数和含水饱和度,同时建立产量与时间关系。结合油田实际井网形式和裂缝发育状况,建立了不同渗透率级别和井网形式的渗流模板,形成了大庆外围低渗透裂缝性油层剩余油快速预测方法,可以快速量化不同类型剩余油。
Abstract:
Because Fuyang Formation in the peripheral area of Daqing Oilfield is affected by diagenesis, the physical properties of reservoir become worse with the increase of buried depth. In the low-permeability multi-media, due to the influence of start-up pressure gradient and the fracture in some blocks, there are the type Ⅱ remaining oil uncontrolled by well pattern with too large injection-production well spacing and the plane interference type Ⅱ remaining oil caused by fracture interference. The natural fractured reservoir was transformed into equivalent isotropic reservoir by coordinate transformation, and the oil-water two-phase seepage equation was established based on fracture and non-Darcy. Based on the theory of oil-water two-phase leading edge propulsion by flow tube method, the water content derivative and water saturation at a certain time can be calculated by single-pipe leading edge propulsion equation, and the relationship between production and time can be established. According to the actual well pattern and fracture development of the oilfield, it was established a seepage template with different permeability grades and well patterns, to form a rapid description method for remaining oil in low permeability fractured reservoirs in the peripheral area of Daqing, which can quickly quantify different types of remaining oil.

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备注/Memo

备注/Memo:
收稿日期:2018-01-17; 改回日期:2019- 03-22。
第一作者简介:曹洪(1977—),高级工程师,目前主要从事大庆外围油田油藏开发工作。E-mail:caohong1@petrochina.com.cn。
基金项目:国家重大科技专项《大型油气田及煤层气开发》项目(编号:2017ZX05013006)。
更新日期/Last Update: 2024-01-18