公开(公告)号：US20220081982A1

公开(公告)日：2022-03-17

申请号：US17446504

申请日：2021-08-31

申请人： Defiant Engineering, LLC

发明人： Stanley Jonathan Blois ,  Daniel R. Green ,  Alvaro Garcia ,  Ian Graham Janke ,  Gareth Nicholas Jones ,  Cullen Keyes

IPC分类号： E21B23/00 ,  E21B43/26 ,  E21B47/002 ,  E21B33/124

摘要： In one example, an apparatus includes a body, a propulsion system configured to move the body in a forward direction and in a reverse direction, and a reusable sealing and isolation element connected to the body and configured to be deployed so as to selectively seal and isolate sections or stages in a wellbore when the apparatus is disposed in the wellbore. The reusable sealing element may be selectively employed to isolate, and de-isolate, a portion of the wellbore, such as in connection with a perforation process for example.

公开(公告)号：US20230111367A1

公开(公告)日：2023-04-13

申请号：US18048396

申请日：2022-10-20

申请人： Defiant Engineering, LLC

发明人： Stanley Jonathan Blois ,  Daniel R. Green ,  Alvaro Garcia ,  Ian Graham Janke ,  Gareth Nicholas Jones ,  Cullen Keyes

IPC分类号： E21B23/00 ,  E21B33/124 ,  E21B47/002 ,  E21B43/26

摘要： One method includes temporarily sealing and isolating a portion of a wellbore with a reusable sealing and isolation element, performing a fracturing process in the portion of the wellbore that is isolated, and after the fracturing process is complete, unsealing or de-isolating the portion of the wellbore by temporarily changing a configuration of the reusable sealing and isolation element. Use of the reusable sealing and isolation element may reduce, or eliminate, the need for remediation operations, such as the removal of sealing plugs.