公开(公告)号：US20140316722A1

公开(公告)日：2014-10-23

申请号：US14357573

申请日：2012-12-14

Applicant: Schlumberger Technology Corporation

Inventor： Geza Horvath Szabo ,  John Ratulowski ,  Dmitry Eskin

IPC: G01N13/00

CPC classification number: G01N13/00 ,  G01N13/02 ,  G01N2013/0241

Abstract: An apparatus (and method) for characterizing interfacial tension between a non-wetting phase fluid and a wetting phase fluid of a slug flow employs a capillary structure that is configured to contain a slug of the non-wetting phase fluid of the slug flow. The slug has a leading edge meniscus and a trailing edge meniscus, and the capillary structure has a venturi-like section. A pressure sensor is configured to measure differential pressure between first and second locations of the capillary structure. The first location is disposed upstream of the leading edge meniscus of the slug with the leading edge meniscus of the slug contained within the venturi-like section. The second location is disposed downstream of the trailing edge meniscus of the slug. Data processing means is configured to derive a measure of interfacial tension based upon the differential pressure measured by the pressure sensor and, optionally, geometry of the capillary structure.

Abstract translation: 用于表征非润湿相流体和段状流的润湿相流体之间的界面张力的装置（和方法）使用毛细管结构，该毛细管结构被配置为容纳团状流的非润湿相流体的块状物。 牙槽具有前缘弯月面和后缘弯月面，并且毛细结构具有文丘里状部分。 压力传感器构造成测量毛细管结构的第一和第二位置之间的压差。 第一位置设置在塞子的前缘弯月面的上游，其中塞子的前缘弯月面包含在文丘里状部分内。 第二位置设置在塞子的后缘弯液面的下游。 数据处理装置被配置为基于由压力传感器测量的差压以及可选地，毛细结构的几何形状来导出界面张力的量度。