[1]凌浩川,吴　铮,孙　强,等.渤中BZ油田沙二段注水时机研究及应用[J].复杂油气藏,2023,16(03):325-328.[doi:10.16181/j.cnki.fzyqc.2023.03.013]
　LING Haochuan,WU Zheng,SUN Qiang,et al.Study and application of water injection timing in the second member of Sha Formation in BZ Oilfield of Bozhong[J].Complex Hydrocarbon Reservoirs,2023,16(03):325-328.[doi:10.16181/j.cnki.fzyqc.2023.03.013]
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渤中BZ油田沙二段注水时机研究及应用()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
16卷
期数:
2023年03期
页码:
325-328
栏目:
油气开发
出版日期:
2023-09-25

文章信息/Info

Title:
Study and application of water injection timing in the second member of Sha Formation in BZ Oilfield of Bozhong
作者:
凌浩川; 吴　铮; 孙　强; 王记俊; 赵　卓
中海石油（中国）有限公司天津分公司，天津 300459
Author(s):
LING Haochuan; WU Zheng; SUN Qiang; WANG Jijun; ZHAO Zhuo
CNOOC Ltd. Tianjin Branch，Tianjin 300459，China
关键词:
低渗透油藏; 注水时机; 应力敏感; 压力系数
Keywords:
low permeability reservoir; water injection timing; stress sensitivity; pressure coefficient
分类号:
TE348
DOI:
10.16181/j.cnki.fzyqc.2023.03.013
文献标志码:
A
摘要:
渤中BZ油田沙二段属于异常高压低渗透油藏，压力系数1.42，合理注水时机的确定对低渗透油藏注水开发至关重要。在充分调研陆地异常高压低渗透油田注水时机的基础上综合考虑低渗储层应力敏感、注采压差以及数值模拟结果，提出了渤中BZ油田沙二段最佳注水时机为压力系数降至1.0开始注水。通过实际注水试验生产效果表明：在压力系数降至1.0开始注水，既能充分利用天然能量，又能防止油层脱气、保证水驱开发效果，为油田后续全面水驱开发提供技术支撑。
Abstract:
The second member of Sha Formation in the BZ Oilfield of Bozhong is an abnormally high-pressure and low-permeability reservoir with a pressure coefficient of 1.42. It is very important to determine the reasonable timing of water injection for the water injection development in low-permeability reservoirs. Based on fully investigating the timing of water injection in abnormally high-pressure and low-permeability onshore oilfield and considering the stress sensitivity of low-permeability reservoir，the pressure difference between injection and production wells as well as numerical simulation results，the optimal timing of water injection in the Second member of Sha Formation in BZ Oilfield of Bozhong is proposed to be the injection of water at the time when the pressure coefficient is lowered to 1.0. The results of the actual water injection test show that when the pressure coefficient drops to 1.0，starting water injection can not only make full use of natural energy，but also prevent oil reservoir degassing，ensure the effect of water drive development，and provide technical support for the subsequent comprehensive water-driven development of oil fields.

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备注/Memo

备注/Memo:
收稿日期：2023-03-01；改回日期：2023-04-16。
第一作者简介：凌浩川（1987—），硕士，高级工程师，主要从事油藏工程和数值模拟方面的研究。E-mail：xuanmuzixu@163.com。
基金项目：中国海洋石油有限公司“十四五”重大科技项目“海上油田大幅提高采收率关键技术”（KJGG2021-0505）。
更新日期/Last Update: 1900-01-01