The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2019
Filed:
Nov. 24, 2014
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, CN;
Wen Huang, Sichuan, CN;
Shuming Peng, Sichuan, CN;
Xuejie Wang, Sichuan, CN;
Dazhi Qian, Sichuan, CN;
Shilei Zhu, Sichuan, CN;
Bin Tang, Sichuan, CN;
Rundong Li, Sichuan, CN;
Zhihua Zhang, Sichuan, CN;
Jun Xie, Sichuan, CN;
Songbao Zhang, Sichuan, CN;
Jian Yao, Sichuan, CN;
Yang Zhang, Sichuan, CN;
Fang He, Sichuan, CN;
Yi Chen, Sichuan, CN;
Xin Luo, Sichuan, CN;
Yujie Zhu, Sichuan, CN;
Hanming Liao, Tianjin, CN;
Tianlu Ni, Tianjin, CN;
Xijun Yang, Tianjin, CN;
Yong Yang, Tianjin, CN;
Shubin Guo, Tianjin, CN;
INSTITUTE OF NUCLEAR PHYSICS AND CHEMISTRY, CHINA ACADEMY OF ENGINEERING PHYSICS, Mianyang, Sichuan, CN;
Abstract
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 γ-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.