浅析套管腐蚀结垢对RIB扇区水泥胶结测井的影响

Analysis of the influence of casing corrosion and scaling on RIB sector CBL

在油水井生产过程中,水泥胶结固井质量是影响油气井生产的关键因素。对固井质量的检查多采用水泥胶结测井仪,目前来自美国的新一代水泥胶结测井仪——RIB扇区水泥胶结测井仪在油田得到广泛应用。在油水井长期的生产过程中,由于种种原因造成套管腐蚀结垢的发生,腐蚀结垢的存在极大地影响了测量资料的准确性。针对套管腐蚀结垢给RIB扇区水泥胶结测井仪现场测量造成影响的原因,从仪器运行状况以及探测原理的角度进行分析,并对存在套管腐蚀结垢油水井提出相应的处理建议。

In the production of oil-water wells, cement bond cementing quality is a key factor affecting the production of oil-gas wells. Cementing quality inspection is often conducted by using cement bond logging tool, and a new generation of cement bond log- ging tool, RIB sector CBL tool, has been widely used in oilfield. In the long-term production of oil-water wells, due to different causes, casing corrosion and scaling often occur and severely influence the accuracy of logging data. Against the causes leading to the impact of casing corrosion and scaling on the field logging by using RIB sector CBL tool, this paper made analysis from the as- pects of tool operation status and work principle, and put forward suggestions for the corresponding wells with the exsistence of cas- ing corrosion and scaling.