对低渗透油藏提高单井产能与渗透率表征等技术的新思维New thought about technologies of single well production improvement and permeability description
钟显彪
Zhong Xian-biao (Exploration and Development Research Institute of Jilin Oilfield Company;
摘要(Abstract)：
以油藏地质与开发理论为基础,通过矿场实际资料的深入分析,运用超越性思维方法,提出了低渗透油藏提高单井产能的新做法。即采取超前注水达到异常高压油藏,不仅可以提高单并产能,还可以延长油井稳产期及低含水开发期。实施这一做法,将更多的有效开发动用低渗透油藏的地质储量;明确提出了油藏描述中以往对储层渗透率采取的常规线性内插的不足,而应以对数规律内插更为科学这种渗透率表征的新思路,将更科学合理描述储层物性变化;提出了低渗透油藏开发中注水井注入压力可以超过油层的破裂压力的设想,突破了多年制定的适用于中高渗透油藏的注水技术政策,将为低渗透油藏工程设计实施提供理论依据并节省大量的重复建设注水系统的资金。
On the basis of oil geological and development theory, through deeply analyzing practical on spot data, applying over -routine considering ways, a new method of single well production improvement in low permeability oil reservoir is given in this paper. Namely to attain exceptional over - pressured oil reservoir by adopting lead water flooding, which not only increase single well production , but also extend the stable production period of oil wells and the development period of low water - bearing. With application of this method low permeability oil reservoirs will be effectively developed. The method definitely points out the shortage of applying general linear interpolation to the reservoir permeability in reservoir description , and logarithm normalized interpolation will be more scientific. The new idea of permeability description will be more scientific and reasonable to describe the variation of the reservoir physical property; The method takes a suppose that injection pressure of water injection wells could exceed formation fracture pressure in the development of low - permeability oil reservoir, which breaks the limit of water injection technology policy that adapts to medium and high permeability oil reservoir, and it will provide a theoretical accordance for the design and implement of low permeation reservoir engineering, economize much fund for repeated building of water injection system.
关键词(KeyWords)：
提高单井产能;渗透率表征;超前注水;异常高压油藏;油层破裂压力
single well production improvement; permeability description, lead water flooding; over - pressured oil reservoir; formation fracture pressure
基金项目(Foundation):
作者(Authors):
钟显彪
Zhong Xian-biao (Exploration and Development Research Institute of Jilin Oilfield Company;
- 提高单井产能
- 渗透率表征
- 超前注水
- 异常高压油藏
- 油层破裂压力
single well production improvement - permeability description, lead water flooding
- over - pressured oil reservoir
- formation fracture pressure