Donald Randy Downing

US Patent:

51393980, Aug 18, 1992

Filed:

Apr 8, 1991

Appl. No.:

7/682467

Inventors:

Donald R. Downing - Vernal UT

Assignee:

D & L Valve, Inc. - Vernal UT

International Classification:

F04B 2106

US Classification:

417511

Abstract:

A neutralizer valve that is for use in conjunction with one or more reciprocating pumps of a tubing string that is operated in an oil well for recovery of crude oil. The neutralizer valve takes the place of a regular traveling valve in a rod pump, which includes a drag plunger for passing a crude and natural gas mix therethrough on a down stroke of the tubing string. The neutralizer valve includes a guide barrel that connects into the rod pump plunger and contains a ported seal stem that is arranged to move up and down therein. The ported seal stem includes a keyed rod as its upper end that is for fitting to travel up and down in a keyway that is formed through a ported disk which is arranged across the guide barrel interior. The ported seal stem includes a collar formed around its mid-section, the undersurface of which collar is a valve face that is for engaging, so as to seal against a seat that is maintained in the guide barrel. Which ported seal stem is ported below the collar into a center longitudinal passage that opens at the stem bottom end face.

US Patent:

20190085676, Mar 21, 2019

Filed:

Sep 17, 2018

Appl. No.:

16/133315

Inventors:

Donald Randall Downing - San Antonio TX, US

International Classification:

E21B 43/38
B01D 45/16
E21B 43/08

Abstract:

A dual-stage sand and gas separator for use within a wellbore of a fluid producing well is disclosed. During sand separation, fluid is ported into a vortex housing and across a vortex cup which imparts a vortex motion on the fluid to separate solids from the fluid. Some of the solids are filtered by a sand filter screen, while heavier solids are diverted down hole by a diverter plate. The fluid pass internally through the vortex cup into the gas separation housing. During the gas separation phase, a sump is created by the transfer tubing and gas is separated from the fluid and ported away from the tubing.

US Patent:

20170058635, Mar 2, 2017

Filed:

Aug 29, 2016

Appl. No.:

15/250102

Inventors:

- San Antonio TX, US
Donald R. Downing - San Antonio TX, US

International Classification:

E21B 34/08
F04B 19/22
F04B 53/06
F04B 53/14
F04B 53/10
E21B 43/12
F04B 47/02

Abstract:

An apparatus for reducing or eliminating gas lock in a downhole pump is provided. The apparatus has a ported bushing connecting to an upper standing valve at a first, uphole end and connecting to a lower standing valve at a second, downhole end. The apparatus also has one or more vents. In one embodiment, the apparatus is coupled downhole of a traveling valve of a downhole pump such that, on each upstroke, the one or more vents of the apparatus draw liquid from the annulus between the pump and the tubing into the passage between the upper and lower standing valves for opening the upper standing valve to accumulate liquid in the pump barrel below the traveling valve. The accumulation of liquid in the pump barrel below the traveling valve breaks gas lock and opens the traveling valve, ensuring the operation of pumping liquid from downhole to surface.

US Patent:

20150376996, Dec 31, 2015

Filed:

Jan 17, 2014

Appl. No.:

14/761333

Inventors:

- Calgary, CA
Donald R DOWNING - San Antonio TX, US

International Classification:

E21B 43/12
F04B 47/00
E21B 34/08
F04B 53/14
E21B 34/12
F04B 19/22
F04B 53/12

Abstract:

Method and apparatus overcoming gas-lock in reciprocating downhole pumps. On the downstroke of a plunger in a barrel, gassy fluid is compressed in the pump chamber between standing and travelling valves. Downhole plunger movement drags a sleeve over a mandrel for opening a chamber valve to a staging chamber located at a downhole end of the travelling valve for receiving at least a portion of the compressed and gassy fluid therein. On the upstroke, the chamber valve is dragged closed for sealably retaining the compressed gassy fluid therein while drawing an additional increment of fluid through the standing valve into the pump chamber. Continued downstroke and upstroke cycles increases pressure of the compressed gassy fluid in the pump chamber until it exceeds the hydrostatic head above the travelling valve for resumption of normal fluid pumping.