公开(公告)号：USD453205S1

公开(公告)日：2002-01-29

申请号：US29126553

申请日：2000-07-19

Applicant: Shawn D. Clark

Designer： Shawn D. Clark

公开(公告)号：US20180156017A1

公开(公告)日：2018-06-07

申请号：US15832434

申请日：2017-12-05

Applicant: Shawn D. Clark

Inventor： Shawn D. Clark

IPC: E21B43/16 ,  E21B21/08

CPC classification number: E21B43/162 ,  E21B21/08 ,  E21B43/126 ,  E21B43/26

Abstract: A novel tool for improving the efficiency of extraction of hydrocarbons from underground formations is described. The tool is configured to produce localized waves of high pressure fluid at a location within a wellbore. These pressure waves are effective to displace hydrocarbons within a geological formation such that enter the interior of the wellbore where they can be more easily removed by means of an accompanying pump assembly.