摘要
大牛地气田进行规模开发超过10年,早期投产井已经进入递减阶段,为确保气田进一步稳产,气田实施增压开采势在必行,而对于增压开采条件下的合理配产指标尚不明确,因此,开展增压开采下合理配产研究,可有效延长气井稳产时间,实现气田长期稳产,提高采收率。通过对气田处于不同压力和产量下的气井进行生产特征分析,结合数值模拟对各类气井不同配产条件下的稳产期、采收率、递减率和采气速度等指标的预测结果,综合确定出了不同类气井在增压开采条件下的合理配产,目前该项成果已成功应用于大牛地气田增压开采,为增压工程的顺利实施提供了技术支撑,相关的研究思路和技术方法也为后续的二期增压提供了技术借鉴。
Daniudi gasfield has been developed in scale for more than 10 years and the fact that part of wells have been in the decline period will affect the production plateau of the gasfield. Consequently supercharging production technique must be applied in order to keep the gas production rate steady. However the rational proration of supercharging production has not been researched as yet. Therefore the investigation on rational proration can prolong the production plateau and enhance the recovery of the gasfield. The rational proration of supercharging production of different types of gas wells has been defined through the analysis of production characteristics of gas wells with different pressures and gas outputs as well as the prediction of multiple development indexes by numerical simulation of production process of wells with different production proration, including the production plateau, the recovery, the decline factor and gas offtake. Now the research achievement has been applied successfully in Daniudi gasfield during the period of supercharging production so that it has provided technical support for successful application of pressure-boosting technique. Furthermore, the correlative research idea and technical method can provide technical references for the subsequent second-phase pressure boost.
作者
杨文娟
YANG Wenjuan(Exploration and Development Institute of North China Branch,Sinopec,Zhengzhou Henan 450006,China)
出处
《石油化工应用》
CAS
2018年第12期22-28,共7页
Petrochemical Industry Application
基金
国家科技重大专项"低丰度致密低渗油气藏开发关键技术"
项目编号:2016ZX05048
关键词
增压开采
合理配产
携液能力
生产特征
数值模拟
supercharging
rational proration
liquid-carrying capacity
production characteristics
numerical simulation
