Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics

Zhejiang Funlithium New Energy Tech Co., Ltd.

Zhihua Zhang

Yi Chen

Xin Luo

Fang He

Xiaoxiong Xu

Wen Huang

Haitao Rao

Shubin Guo

Yong Yang

Xijun Yang

Tianlu Ni

Hanming Liao

Yujie Zhu

Yang Zhang

Jian Yao

Songbao Zhang

Rundong Li

Jinguo Pan

Yuanhui Shi

Yijiang Feng

Peiwen Gu

Zhongxin Fan

Xuejie Wang

Dazhi Qian

Shilei Zhu

Bin Tang

Jun Xie

Shuming Peng

Chao Lu

Siping Chen

Chaohui Zhang

Liang Ye

Jiang Zhu

Guosheng Yang

Yong Liao

Yanming Cui

Zhi Li

A logging device and method for locating a watered zone in a horizontal well with high watercut problem by isotope labeling is provided. The method successively includes the following operations: a. solidifying an isotope used in an isotope releasing device into a water-soluble carrier; b. connecting the isotope releasing device with a tubing and setting them to a horizontal segment of the well; c. dissolving the water-soluble carriers in the water at the bottom of the well to release the isotope, wherein the releasing rate is proportional to the flow rate of the water; d. starting a lift-up pump and beginning a production logging; and e. continuously performing &#x3b3;-ray energy-spectrum analysis on produced water on the ground, so as to locate the watered zone of the horizontal well by the detected species and characteristic content of the isotope, thereby reduces operation risk, saves platform occupying time and logging cost.

Logging method for locating watered zone in horizontal well with high watercut problem by isotope labeling

Growing community of inventors

Sichuan, China

Zhihua Zhang