元坝海相长兴组气藏深穿透酸压工艺

Deep-penetrating Acid-fracturing Technology Used for Marine Changxing Gas Reservoir,Yuanba Area

元坝海相碳酸盐岩气藏储层改造过程中表现出来的高温含硫、储层破裂压力高、施工压力大、摩阻大等难题严重制约了单井产量的提高。在对元坝海相碳酸盐岩气藏储层工程地质特征进行分析的基础上,通过深化酸液配方体系、储层改造工艺及其配套技术的研究,形成了有针对性的储层改造技术措施,为元坝海相碳酸盐岩气藏的进一步勘探开发提供了技术支持。

There are many problems during reservoir reconstruction of marine carbonate gas reservoir in Yuanba area,such as high temperature,high sulfur content,high fracture pressure,high construction pressure and large frictional strength.Consequently,they may restrict an increase of individual-well production.In this study,based on an analysis on the geological characteristics of carbonate reservoir,some reservoir reconstruction technologies and measures form after a research on acidzing formula system,reconstruction technology and some supporting technologies.These may provide a technical support for further exploration and development of marine carbonate gas reservoir in Yuanba area.