基本信息:
- 专利标题： METHOD OF PARTICLE CHARACTERIZATION BASED ON FLUORESCENCE IMAGING
- 专利标题（中）：基于荧光成像的粒子表征方法
- 申请号：PCT/US2002/034998 申请日：2002-10-31
- 公开(公告)号：WO2003040701A1 公开(公告)日：2003-05-15
- 发明人： BLAND, Ronald, G. , JONES, Tom
- 申请人： BAKER HUGHES INCORPORATED
- 申请人地址： 3900 Essex Lane, Suite 1200, Houston, TX 77027 US
- 专利权人： BAKER HUGHES INCORPORATED
- 当前专利权人： BAKER HUGHES INCORPORATED
- 当前专利权人地址： 3900 Essex Lane, Suite 1200, Houston, TX 77027 US
- 代理机构： WELBORN, Brian, S.
- 优先权： US60/338,311 20011102
- 主分类号： G01N15/14
- IPC分类号： G01N15/14
摘要：
The invention concerns a method for determining the particle size distribution (PSD) of bridging agents in fluids, particularly aqueous fluids used in hydrocarbon recovery such as drilling fluids, drill-in fluids, completion fluids, and the like. It was discovered that the PSD could be selectively determined for calcium carbonate as a bridging agent because it auto-fluoresces. The method is reproducible and is not bothered by the presence of other particles such as drill solids which interferes with conventional methods, for instance, light-scattering techniques. The light used to fluoresce the bridging agent may be filtered to a particular frequency if there are other components present that fluoresce. Flow cytometry is another technique that could be used to implement the invention.
摘要（中）：
本发明涉及一种用于确定流体中桥连剂的颗粒尺寸分布PSD的方法，特别是用于烃回收的含水流体，例如钻井液，钻入流体，完井液等。 已经发现，由于自发荧光，PSD可以选择性地测定碳酸钙作为桥连剂。 该方法是可再现的，并且不受其它颗粒例如钻石固体的影响的困扰，这些颗粒干扰常规方法，例如光散射技术。 用于荧光桥接剂的光可以被过滤到特定的频率，如果存在荧光的其它成分。 流式细胞术是可用于实现本发明的另一种技术。