Invention Grant
- Patent Title: Secondary barrier for use in conjunction with an isolation device in a horizontal wellbore
- Patent Title (中): 与水平井眼中的隔离装置结合使用的二级屏障
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Application No.: US13653156Application Date: 2012-10-16
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Publication No.: US09279303B2Publication Date: 2016-03-08
- Inventor: John H. Hales , Shawn R. Webb
- Applicant: HALLIBURTON ENERGY SERVICES, INC
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: McGuire Woods, LLP
- Main IPC: E21B33/12
- IPC: E21B33/12

Abstract:
A secondary barrier for use in conjunction with an isolation device in a portion of a non-vertical wellbore comprises: a swellable material, wherein the swellable material: (A) has dimensions such that, prior to swelling, the secondary barrier is capable of being placed into the portion of the non-vertical wellbore, and (B) fills a void within the portion of the non-vertical wellbore, wherein the swellable material fills the void after the swelling of at least a portion of the swellable material has occurred, wherein the secondary barrier is positioned adjacent to the isolation device in the portion of the non-vertical wellbore. A method of creating a secondary barrier comprises: introducing the secondary barrier into the portion of the non-vertical wellbore; and contacting or allowing the swellable material to come in contact with the swelling fluid or the increase in temperature.
Public/Granted literature
- US20140102724A1 SECONDARY BARRIER FOR USE IN CONJUNCTION WITH AN ISOLATION DEVICE IN A HORIZONTAL WELLBORE Public/Granted day:2014-04-17
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