The invention discloses a multi - to - point radial measurement long core clamp holder, including a clamp barrel body, a rubber sleeve, a rock ventricular bracket, a plugging system, a measuring system and a confining pressure pump, a confining pressure cavity formed between the holder cylinder and the rubber sleeve, the rubber sleeve is wrapped up in the rock chamber, and the core chamber bracket is set at the bottom of the rock ventricle and plugs the head. The system includes the inlet end plug and the outlet end plug at both ends of the holder. The measuring system includes the insulation sleeve, the saturation probe and the radial measurement point. The surface of the holder cylinder is opened with small holes, the insulation sleeve is fitted with the radial measurement point, the saturation probe is set in the insulating sleeve, and the saturation probe passes through the rubber sleeve and after the rubber sleeve. The long core is connected, and the pressure pump is communicated with the pressure chamber through the pipeline through the ring pressure hole on the clamping cylinder body. The gripper simulate the formation conditions of oil and gas reservoirs, and can realize the real-time measurement of the multipoint radial resistivity. The change curve of the resistivity is detected by the inspector and the resistivity measuring instrument, and the position and law of the remaining oil distribution in the core are clearly defined.
【技术实现步骤摘要】
多对点径向测量长岩心夹持器
本专利技术属于油气实验
,涉及一种剩余油气分布的测量系统,尤其涉及一种多对点径向测量长岩心电阻率的长岩心夹持器。
技术介绍
目前全国乃至世界范围内大部分油气藏已经进入开发后期,剩余油气的挖潜一直是油气行业的热点和难点。油藏数值模拟技术是剩余油气挖潜的重要手段,其基础在于足够完备的地质及油气资料,然而目前的技术条件无法满足。现场利用注水后闷井期间压降试井技术,该技术基于物质平衡原理,结合多轮次试井数据求解油气田区块的含油气饱和度,但由于试井解释方法需要一系列的假设条件,导致该方法也具有局限性。基于此,实验手段成为剩余油气挖潜的最具代表性的技术方法。实验室内测量技术发展了声、光、电等多种手段测量岩心水驱油过程中的油气饱和度,主要包括超声脉冲重合法、陆地声呐法、核磁共振技术、计算机层析(CT)技术、氯能法和电阻率测井等方法和技术。其中电阻率方法由于其原理易理解,设备易操作而得到广泛应用。常规电阻率仪在岩心两端接探针,通过测量水驱油过程中不同时刻的电阻率而得到一条电阻率曲线,通过解释可得到水驱油过程中不同时刻的油水饱和度,局限在于无法测量 ...
【技术保护点】
多对点径向测量长岩心夹持器,其特征在于:包括夹持器筒体、橡胶套、岩心室托架、堵头系统、测量系统和围压泵,所述夹持器筒体位于岩心夹持器的最外围,橡胶套设置于夹持器筒体的内部,且夹持器筒体和橡胶套之间形成环空的围压腔,橡胶套包裹构成岩心室,所述岩心室托架为多个设置在岩心室底部,所述堵头系统包括进口端堵头和出口端堵头,进口端堵头和出口端堵头分别位于岩心夹持器的两端,用于封堵岩心夹持器的岩心室,所述测量系统包括绝缘套、饱和度探针和径向测点,夹持器筒体表面径向相对开设有小孔,所述绝缘套与径向测点相配合后共同与小孔连接,饱和度探针设置在绝缘套内,且饱和度探针穿过橡胶套后与长岩心相连,在 ...
【技术特征摘要】
1.多对点径向测量长岩心夹持器,其特征在于:包括夹持器筒体、橡胶套、岩心室托架、堵头系统、测量系统和围压泵,所述夹持器筒体位于岩心夹持器的最外围,橡胶套设置于夹持器筒体的内部,且夹持器筒体和橡胶套之间形成环空的围压腔,橡胶套包裹构成岩心室,所述岩心室托架为多个设置在岩心室底部,所述堵头系统包括进口端堵头和出口端堵头,进口端堵头和出口端堵头分别位于岩心夹持器的两端,用于封堵岩心夹持器的岩心室,所述测量系统包括绝缘套、饱和度探针和径向测点,夹持器筒体表面径向相对开设有小孔,所述绝缘套与径向测点相配合后共同与小孔连接,饱和度探针设置在绝缘套内,且饱和度探针穿过橡胶套后与长岩心相连,在夹持器筒体上还设置有环压孔,所述围压泵通过管线经由环压孔与围...
【专利技术属性】
技术研发人员:闫长辉,曽琳娟,郑军,田园媛,侯大力,王可可,陈青,
申请(专利权)人:成都理工大学,
类型:发明
国别省市:四川,51
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。