公开(公告)号：US20230393296A1

公开(公告)日：2023-12-07

申请号：US18033960

申请日：2021-11-22

Applicant: CHINA OILFIELD SERVICES LIMITED

Inventor： Xi LUO ,  Guoyu LI ,  Bo DANG ,  Caihui QIN ,  Jinhai ZHAI ,  Aiyong LI ,  Xizhou YUE ,  Mingxue MA ,  Xinbiao JI ,  Yiyi WANG

IPC: G01V3/10 ,  E21B47/0228

CPC classification number: G01V3/10 ,  E21B47/0228

Abstract: An adjacent well detection apparatus, method and system. The adjacent well detection apparatus is arranged on a drill collar of a first well. The adjacent well detection apparatus includes a transmitting probe and receiving probes. The apparatus includes: the transmitting probe, configured to generate a primary magnetic field according to a bipolar transient pulse signal applied to the transmitting probe, wherein a change in the primary magnetic field can generate a second magnetic field on a sleeve of an adjacent second well; and the receiving probes, configured to generate an induced electromotive force according to the second magnetic field, wherein the induced electromotive force is used for acquiring relative distance information and orientation information of the adjacent well.