Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Victor Jose Bustamante Rodriguez0
Syed Muhammad Ali0
Date of Patent
December 6, 2022
0Patent Application Number
171786890
Date Filed
February 18, 2021
0Patent Citations
Patent Primary Examiner
CPC Code
A drill assembly has a stinger with downward oriented cups including an upper cup and a lower cup. The cups create a loss zone therebetween in a downhole environment. The downhole environment can be a shaft of a well. The loss zone can be filled with cement to plug the shaft. The downward oriented cups isolate the loss zone from the shaft and minimize the hydrostatic pressure above the upper cup.
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