M气田低压井管理对策研究

Research of countermeasures of low pressure well in M gasfield

低压气井管理是低渗气藏开发中后期保持长期稳产和提高经济效益的关键。针对M气田气井低压影响因素多,开发对策制定困难的情况,在气藏地质特征分析及单井开采指标评价的基础上,将气井按照低压成因分为高采出程度、物性差、井筒积液、气井产水四类,并提出了不同类型气井治理对策,为气田持续稳产提供了有力技术支撑。

The management of low pressure gas well is the key to maintain long-term stable production and improve economic benefit in the middle and late stage of low permeability gas reservoir development.However,there are so many factors resulting in low pressure of the gas wells,it is difficult to formulate development countermeasures of M gasfield.Based on the analysis of the geological characteristics of gas reservoir and the production behavior of single well,the gas wells are divided into four types according to the cause of low pressure:high recovery percent of reserves,poor physical property,liquid loading and massive water production.The control measures for different types of gas wells are put forward,which provides strong technical support for sustained and stable production of gasfields.