徐深气田火山岩气藏气井试采模式建立

徐深气田火山岩气藏处于勘探开发早期阶段,主力产气层位为营城组火山岩储层,受火山喷发多期性的控制,火山岩气藏岩性岩相变化较快、储层致密且非均质性严重,单井产能差异大,气藏类型复杂多样,通过气井详实可靠的试气、试采资料,进一步认识气藏至关重要.根据气田试气、试采实践,阐述了目前徐深气田火山岩气藏气井试采模式,对单井进行了科学系统的试采安排,各试采阶段目的明确,衔接合理,利用该方法进行单井试采,获得的资料能够有效地对单井进行动态评价,为火山岩气藏高效开发提供第一手资料.

Gas well production testing mode of volcanic gas deposit in Xushen gas field

The volcanic gas deposits in Xushen deep gas field is at the early exploration and development stage. The main gas pay is the volcanic reservoir of Yingcheng Formation. Due to the effect of multi volcanic eruption, the lava deposit is featured by rapid c~ange of lithology and facies, tight reservoir, serious nonhomogeneity, great difference of single well productivity, and complicated reservoir types. It is very important to understand gas deposit through the production testing and gas well testing. Based on gas well testing and production testing, the production testing mode for volcanic gas reservoirs in Xushen gas field is established. Scientific and systematic production testing is arranged for single wells. The goals for each production testing stage are obvious with reasonable connection between different stages. Based on this method the data obtained can be used for the dynamic evaluation of single wells and they can also be used for the effective development of volcanic gas reservoirs.