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低渗透油藏测试工艺的发展速度超过了试井解释技术,针对性的解释理论和解释技术成为当前试井软技术研究的主要方向之一。近年投产的复杂低渗油气藏对试井提出了更高的要求,急需测试解释成果深入、量化应用到油藏工程分析中,目前缺少结合油藏工程的综合研究是试井应用受限的现实条件之一。结合现场测试实例,研究了注采井间探测半径变化,优化确定了低渗透油藏压力恢复试井测试周期。根据实际工艺情况,建议取20d作为典型区块低渗透储层压力恢复试井测试周期的上限,10d作为典型区块低渗透储层压力恢复试井测试周期的下限。
The development of testing technology for low permeability reservoirs has exceeded that of well testing interpretation technology. Targeted interpretation theory and interpretation technology have become one of the main research directions of soft well testing technology. The complicated low-permeability reservoirs put into operation in recent years put forward higher requirements for well testing. In-depth test interpretation results are urgently needed and applied quantitatively to reservoir engineering analysis. At present, the lack of a comprehensive study combining reservoir engineering is the reality of restricted well testing One of the conditions. Combined with the field test example, the variation of the detection radius between the injection and production wells was studied, and the pressure recovery well testing cycle of the low permeability reservoir was optimized. According to the actual process conditions, it is recommended to take 20d as the upper limit of the pressure recovery well test cycle of a typical block low permeability reservoir and 10 days as the lower limit of the pressure recovery well test cycle of a typical block low permeability reservoir.