Title:
HIGH CURVATURE BRANCH WELL POSITION CONTROL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/253208
Kind Code:
A1
Abstract:
A high curvature branch well position control apparatus, comprising: two strings of downhole operating tools arranged in two wells to be connected or kept at a distance from each other, respectively, at least one string of downhole operating tools comprising a directional drilling sub string (Y) being disposed in a high curvature branch well, and used for well connecting operations through a high curvature well section having a radius of curvature within a predetermined range; the two strings of downhole operating tools having a first signal transceiver unit (4) and a second signal transceiver unit (12), respectively, the second signal transceiver unit (12) being capable of calculating a relative positional relationship between the first signal transceiver unit (4) and the second signal transceiver unit (12) by means of receiving a signal transmitted by the first signal transceiver unit (4), or the first signal transceiver unit (4) being capable of calculating the relative positional relationship between the first signal transceiver unit (4) and the second signal transceiver unit (12) by means of receiving a signal transmitted by the second signal transceiver unit (12).
Inventors:
XU ZICHEN (CN)
Application Number:
PCT/CN2022/096137
Publication Date:
December 08, 2022
Filing Date:
May 31, 2022
Export Citation:
Assignee:
XU ZICHEN (CN)
International Classes:
E21B44/00; E21B7/04; E21B43/30; E21B47/00; E21B47/0228; E21B47/024; E21B47/026; E21B47/13; E21B47/14
Foreign References:
| CN113236224A | 2021-08-10 | |||
| CN215890010U | 2022-02-22 | |||
| CN101806210A | 2010-08-18 | |||
| CN112832681A | 2021-05-25 | |||
| CN104131808A | 2014-11-05 | |||
| CN109322660A | 2019-02-12 | |||
| US20160326804A1 | 2016-11-10 |
Attorney, Agent or Firm:
SUZHUO TUOYUN INTELLECTUAL PROPERTY AGENCY (CN)
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