【摘要】 在简介多分层试井仪的结构、原理基础上,提出了分层流体流动压力曲线如何测取、所提供的数据,以及压力曲线的解释原理。介绍了多分层试井仪在子北采油厂3口井5个油层完成的分层地层测试流动压力曲线及解释结果。测到了特低渗透率油藏的基岩渗透率、油层水力压裂形成的水平裂缝位置、垂直裂缝、水力压裂若干年后油层仍然保留着的裂缝导流能力,以及其他动态特性参数如地层静止压力、静止温度、表皮系数、采油指数等。论述了在该地区井深大约在700 m内测到的裂缝可能是水平裂缝,而井深大约在700 m以下测到的裂缝可能是垂直裂缝。在同一垂直裂缝上的不同深度地层压力和温度呈线性分布,但渗透率、表皮系数、采液指数的值却是随机的,系不均匀分布。更多还原

【Abstract】 Based on a brief introduction of the structure and basic working principle of the Multi-Sublayer Test Instrument( MSTI),the method to obtain the multi-sublayer fluid flowing pressure curve and the explanation theory of the gained data and pressure curve has been proposed. The sublayer formation test flowing pressure curve and the explanation results which acquired from 5 layers in 3 wells at ZiB ei oil production plant by the MSTI is introduced. The bedrock permeability of the extra-low permeability reservoirs,the location of the horizontal fractures which created by hydraulic fracturing,the vertical fractures,the flowing rate maintained by formation being hydraulic fractured after many years,and other dynamic parameters of the reservoirs such as static formation pressure,temperature,skin factor and oil productivity index have been acquired. The conclusion is that the fractures detected within about 700 meters in this area are probably horizontal and those who below the depth of 700 meters are probably vertical. But the permeability,skin factor and oil productivity index are random,which is uneven distribution.更多还原