公开(公告)号：US10125589B2

公开(公告)日：2018-11-13

申请号：US15606266

申请日：2017-05-26

Applicant: The Board of Regents of The University of Texas System

Inventor： Raymond C. Zowarka ,  Mukul M. Sharma ,  Michael D. Werst ,  Clay Hearn ,  Michael Worthington ,  Jon Hahne ,  Hsing-Pang Liu ,  Bryan Bunkowski ,  Siddharth Pratap

IPC: E21B43/24 ,  E21B36/04 ,  E21B43/12 ,  H05B6/10 ,  F16H25/20 ,  F16L53/34

Abstract: Described herein are methods and system that use electromagnetic heating to heat wellbores and the fluids therein. The heating is achieved by placing one or more permanent magnets in the wellbore and moving a metallic component and/or the one or more permanent magnets relative to each other. This generates eddy currents in the metallic component, which heat the metallic component. This heat is transferred to the fluids in the wellbore from the metallic component by convection. In some embodiments, permanent magnets are installed in the tubing to induce eddy current heating in a well by converting the linear motion of a sucker rod to rotary motion of a conducting tube using a lead or ball screw. The heater may directly integrate with existing pump jack equipment with little or no additional infrastructure required.

公开(公告)号：US20170362923A1

公开(公告)日：2017-12-21

申请号：US15606266

申请日：2017-05-26

Applicant: The Board of Regents of The University of Texas System

Inventor： Raymond C. Zowarka ,  Mukul M. Sharma ,  Michael D. Werst ,  Clay Hearn ,  Michael Worthington ,  Jon Hahne ,  Hsing-Pang Liu ,  Bryan Bunkowski ,  Siddharth Pratap

IPC: E21B43/24 ,  E21B43/12 ,  F16H25/20 ,  H01F7/02

CPC classification number: E21B43/2401 ,  E21B36/04 ,  E21B43/127 ,  F16H2025/2028 ,  F16L53/34 ,  H05B6/10

Abstract: Described herein are methods and system that use electromagnetic heating to heat wellbores and the fluids therein. The heating is achieved by placing one or more permanent magnets in the wellbore and moving a metallic component and/or the one or more permanent magnets relative to each other. This generates eddy currents in the metallic component, which heat the metallic component. This heat is transferred to the fluids in the wellbore from the metallic component by convection. In some embodiments, permanent magnets are installed in the tubing to induce eddy current heating in a well by converting the linear motion of a sucker rod to rotary motion of a conducting tube using a lead or ball screw. The heater may directly integrate with existing pump jack equipment with little or no additional infrastructure required.