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David P. O Mara Patents
Inventor:
O Mara; David P.
Address:
Canyon Country, CA
No. of patents:
1
Patents:




Patent Number Title Of Patent Date Issued
5667364 Downhole hydraulic pump apparatus having a "free" jet pump and safety valve assembly and method September 16, 1997
A downhole hydraulic pump apparatus for a well assembly including a rigid, elongated production tubing extending into a formation producing production fluid. The hydraulic pump apparatus includes an elongated tube and a bottom-hole assembly mounted to a lower end of the elongated tube.


 
 
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