DNOW are proud to introduce the Black Gold Double Displacement Pump. Increase your production by up to 30% with an improved downhole pumps that does not increase load on the surface pumping unit. Production restriction in slim hole wells? Try the double displacement pump from DNOW / Black Gold.

2. DOUBLE DISPLACEMENT PUMP
AGENDA:
• How it works
• Why it is used
• How to determine total
volume
• Case study

3. HOW IT WORKS
The Black Gold Double Displacement pump is the only "Big Bore"
Sucker rod pump that can produce both on the upstroke and the
down stroke.
It works by pumping on the up stroke (like a regular conventional
rod pump). There is a middle barrel which is the area where there
will be extra fluid to displace. The fluid enters between the middle
barrel and upper barrel and fluid gets trapped in between that
area; all the other fluid is produced.
On the downstroke, all the fluid that was in between the middle
barrel is forced down and through the special slotted cage and up
through the middle part of your plunger. There is a slotted hole in
the lower barrel so the rods and plungers can fall and nor go into
compression.

4. WHY IT IS USED
• Black Golds’ Double Displacement
Pump was invented for wells with
small locations, small casing, wells
running at high strokes per minute
and wells with high FOP
• Increases overall well production by
30% (Average)
• ESP and PCP pumps were you need
a high amount of volume in tight or
small casing
• Does NOT increase peak polish rod
load or harm rod harmonics
• Does NOT increase gear box loading

5. HOW TO DETERMINE TOTAL
VOLUME:
• Use the pump bore size after you calculate the the displacement area
• Run rod design with new pump bore size
• See your new overall pump production
• Only use the data for overall production. Rod loading, tubing load, gear box load, are
not effected.

6. CASE STUDY
Design Before Optimization:
Pumping unit: 640-305-144 AB
Stroke length: 144"
Strokes per minute: 7.2
Tubing Size: 2 7/8 A-95 Hydril pipe
Pump Size: 2 3/4" Black Gold ID Thread Slim Line Pump
Rod String Design: (82) 7/8" X 30' WFT T-66 Conventional Sucker Rods
(6) 1 5/8 Sinker Bars
Pump Depth: 2647'
Liner size: 4 1/2 (11.6#)

7. CASE STUDY
Design After Optimization:
Pumping unit: 640-305-144 AB
Stroke length: 144"
Strokes per minute: 7.2
Tubing Size: 2 7/8 A-95 Hydril pipe
Pump Size: 2 3/4" Black Gold DOUBLE DISPLACEMENT PUMP ID
Thread Slim Line
Rod String Design: (2408') 1" 750N Continuous Norris PRO-ROD
(10) 1 5/8 Sinker Bars
Pump Depth: 2647'
Liner size: 4 1/2 (11.6#)

8. CASE STUDY
Conclusion Of Well Design:
By running the Black Gold Double Displacement Pump and using the rod string designed
by Black Gold, overall production increased from 744 to 975 barrels averaged per day.
Our design decreased rod compression, rod buckling, and did not increase rod loading
or overall loading on well (determined by Dynamometer cards). We did not need to
speed up, increase stroke length, or pump size, in order to produce the 900 plus barrels .
FOP dropped from 1,000' to 0' (pumped off).
Without having this design implemented into their system, customers such as Freeport-
McMoRan Oil & Gas would have never pumped the well off, and increased oil
production.

9. WANT TO FIND OUT MORE?
For case studies, designs for your wells or more information,
Contact DNOW ALS:
Australia: DS-AUS-ALSSales@dnow.com
MENA, CIS, Russia, Asia Pacific: ALSapplicationsEHO@dnow.com