塔里木盆地复杂气田试井技术应用新进展

NEW PROGRESS IN THE APPLICATION OF WELL TESTING TECHNIQUES IN COMPLEX GAS FIELDS OF THE TARIM BASIN

近年来由于部分采气井油管变形、结蜡结垢严重,造成监测仪器下不到井底,从而影响录取资料的质量;同时凝析气藏复杂的相态变化所引起的储层多相渗流和井筒多相流动,给测试资料的解释带来了很大的困难,影响资料的解释精度。因此,常规的试井技术已经远远不能适应开发的需要。经过多年的探索与实践,从试井理论、测试工艺等方面入手,提出了高压气井和凝析气井资料处理及解释方法,初步形成了一套适合于高压气田、凝析气田的试井技术,现场应用效果良好,为气田的生产管理和方案调整提供了优质的监测资料。

In recent years,due to the distortion of oil tubes and paraffin/scale deposit in some gas production wells in the fields,monitoring devices could not be put down at the bottom of the well so that the quality of logging data has been seriously influenced;the interpretation of well test data has to face up with great difficulty because of multiple phase seepage in the reservoirs and multiple phase flow in the wellbore resulted from the complicated phase change in the condensate gas reservoirs.Those conventional well testing techniques have not been adapted for the present need of gas development.Through many years of exploring research and field practices,a series of well testing technology have been introduced into processing and interpreting the logging data from high-pressure and condensate gas wells.Starting from the theory and performance,this technology has been proved to be adaptable for high-pressure and condensate gas fields and will provide favorable monitoring data for production management and project adjustment in gas fields.