摘要
含硫气藏在开采过程中,随着地层压力的下降,会产生硫沉积现象。在异常高压有水气藏中,随着气藏的开采,边底水在压差的作用下,不断进入气层形成水侵气藏。综合考虑硫沉积析出和气藏外部水侵的影响,推导出含硫异常高压有水气藏物质平衡方程,进而应用新的物质平衡方程计算含硫异常高压有水气藏地质储量,并与其他计算方法的结果进行对比,计算的结果更接近实际情况。
During production of sour-gas reservoir,sulfur deposition always occurs along with drop of formation pressure.In particular,in some reservoirs with abnormal pressure and water,edge-bottom water may enter into gas layer continuously to further form water-invasion reservoirs.In this study,based on both precipitation of sulfur deposition and effect of water invasion outside reservoir,a new matter-balance equation is derived for these sour-gas reservoirs;and then,the equation is applied to calculating original oil in place(OOIP).It is demonstrated that compared with other OOIPs calculated by other methods,the OOIP from the matter-balance equation is roughly agreement with the real one.
出处
《天然气勘探与开发》
2013年第1期40-42,45,共4页
Natural Gas Exploration and Development
基金
国家自然科学基金项目"油气藏渗流力学"(No.51125019)资助
关键词
含硫气藏
异常高压
有水气藏
物质平衡方程
sour-gas reservoir,abnormal pressure,gas reservoir with water,matter-balance equation
