|本期目录/Table of Contents|

[1]范白涛 邓金根 林 海 高 斌 王晓鹏.压裂充填方式对疏松砂岩储层油水运移的影响[J].中国海上油气,2019,31(06):111-117.[doi:10.11935/j.issn.1673-1506.2019.06.014]
 FAN Baitao DENG Jingen LIN Hai GAO Bin WANG Xiaopeng.Influence of frac-packing methods on oil-water migration in unconsolidated sandstone reservoirs[J].China Offshore Oil and Gas,2019,31(06):111-117.[doi:10.11935/j.issn.1673-1506.2019.06.014]
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压裂充填方式对疏松砂岩储层油水运移的影响()

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

卷:
第31卷
期数:
2019年06期
页码:
111-117
栏目:
钻采工程
出版日期:
2019-11-21

文章信息/Info

Title:
Influence of frac-packing methods on oil-water migration in unconsolidated sandstone reservoirs
文章编号:
1673-1506(2019)06-0111-07
作者:
范白涛12 邓金根2 林 海3 高 斌3 王晓鹏3
(1. 中海油研究总院有限责任公司 北京 100028; 2. 中国石油大学(北京)油气资源与探测国家重点实验室 北京 102249; 3. 中海石油(中国)有限公司天津分公司 天津 300459)
Author(s):
FAN Baitao12 DENG Jingen2 LIN Hai3 GAO Bin3 WANG Xiaopeng3
(1. CNOOC Research Institute Co., Ltd., Beijing 100028, China; 2. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China; 3.CNOOC China Limited, Tianjin Branch, Tianjin 300459, China)
关键词:
疏松砂岩 稠油油藏 压裂充填 油水运移
Keywords:
unconsolidated sandstone heavy oil reservoir frac-packing oil-water migration
分类号:
TE357.1+1
DOI:
10.11935/j.issn.1673-1506.2019.06.014
文献标志码:
A
摘要:
压裂充填是目前解决疏松砂岩稠油油藏产能低、易出砂问题的有效技术手段,但注水过程中压裂充填方式对储层油水运移的影响规律尚不明确。基于储层油水两相流动基本原理,建立了注采井纵向非均质储层油水两相流动数值模拟模型,分析了注采过程中不进行压裂充填以及不同压裂充填方式条件下含水率、产油量和采出程度随开发时间的变化规律。结果表明,不进行压裂充填时注入水更容易沿高渗储层运移,从而影响低渗储层的波及效果,导致高低渗储层采出程度不平衡,总采出程度较低; 进行压裂充填后,提高低渗储层裂缝的渗透率与适当封堵高渗层能够最大程度改善低渗储层的动用状态,提高油藏最终采收率,获得较好的调剖、增产效果。本文研究成果可对疏松砂岩稠油油藏压裂设计提供借鉴。
Abstract:
Frac-packing is an effective technical means to solve the problems of low productivity and sand production of unconsolidated sandstone heavy oil reservoirs. However, the influence of frac-packing methods on oil and water migration in reservoirs during water injection has not been clearly understood. Based on the basic principle of oil-water two-phase flow, a numerical simulation model of oil-water two-phase flow for injection-production wells in longitudinal heterogeneous reservoirs was established, and the changing laws of water cut, oil production and the degree of recovery over time in the process of injection and production were analyzed for the case without frac-packing and case with different frac-packing methods. The results show that the injected water is more likely to migrate along the high-permeability reservoir when no frac-packing is conducted. In such a case, the sweeping effect in low-permeability reservoirs will be compromised, resulting in an unbalanced degree of recovery in high/low permeability reservoirs and the low total recovery degree. After frac-packing, the fractures permeability of low-permeability reservoir is improved and the high-permeable layer is properly blocked, which can improve the utilization state of low-permeability reservoirs to the most extent, enhance the ultimate recovery factor of reservoirs, and achieve ideal profile control and stimulation effects. The study results in this paper can provide references for the fracturing design of unconsolidated sandstone heavy oil reservoirs.

参考文献/References:

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备注/Memo

备注/Memo:
*“十三五”国家科技重大专项“水淹储层压裂充填防砂工艺技术优化研究及应用(编号:2016ZX05058-002-006)”部分研究成果。 第一作者简介: 范白涛,男,教授级高级工程师,中国海洋石油集团有限公司钻完井专家,主要从事钻完井技术管理、井壁稳定与岩石力学研究。地址:北京市朝阳区太阳宫南街6号院中国海油大厦A座(邮编:100028)。E-mail:fanbt@cnooc.com.cn。 通信作者简介: 邓金根,男,教授、博士生导师,长江学者。E-mail:dengjingen@126.com。
更新日期/Last Update: 1900-01-01