 For
more information on the Operation of our walking beam gas compressor
click
here
For more
information about ANNUGAS PRODUCTION ENHANCER® Engineered
Design click here
For more
information about Sizing click
here
For more information
about Registration
of Annugas Production Enhancers
click
here 
OPERATION
The Annugas Production Enhancer® is an engineered
piece of equipment. Only Annugas Compression Consulting
Ltd. Service Technicians are trained and qualified to service our
equipment.
Modifying parts and not using proper nuts, bolts and washers
will void your warranty and may cause personal injury.
Max. working pressure at 0 psig suction:
AG648 & AG636 – 0-400 psi
AG848 & AG836 – 0-225 psi
AG1048 & AG1036 – 0-135 psi
A regulator can be used to prevent casing from going into a vacuum
or to prevent excessive rod load, which can cause damages to
pumpjack, compressor or both.
| DO |
DON’T |
When
pumping unit is shut down the piston rod should be inside
compressor.
During winter months, methanol can be used to prevent freezing.
WD40 has been put into suction line to free piston rings.
Follow next 4 steps:
Step 1 - shut pumping unit down with compressor piston
on bottom.
Step 2 - shut off valves and decompress compressor.
Step 3 - take suction hose off at compressor and pour
1-2 litres in it and put hose back on.
Step 4 - open suction valve and blow WD-40 into compressor
and don't start unit for 1-2 hrs.
Gauges should be put on suction and discharge to make
sure compressor is working properly.
The compressor should be maintained by an Annugas Service
Technician on an annual basis, cleaned inside and parts
replaced if needed. |
Don't
leave suction valve open when pumping unit is shut down.
It will become a scrubber if casing pressure builds up
enough to flow gas through it. When it is started up mounting
bolts may break or the piston can be pulled off. If needed
a scrubber can be installed at suction inlet.
Don't lengthen stroke of pumping unit, increase pressure
relief valve setting, or modify base without first calling
Annugas Compression Consulting Ltd. 1-866-ANNUGAS (266-8427).
Don't oil or grease bearings, use steamer on compressor,
heat trace or insulate cylinder.
Don't remove compressor from pumping unit by taking cross
pins out of bearing and clevis, top or bottom.
If the compressor is not needed in the field, it should
be examined by an ANNUGAS SERVICE TECHNICIAN,
cleaned inside and stored in a dry place. |
ANNUGAS
PRODUCTION ENHANCER® - ENGINEERED DESIGN
The ANNUGAS PRODUCTION ENHANCER® meets
the design intent of API 618 "Reciprocating Compress".
The pressure components in the equipment meet or exceed ASME
section V111 "Boiler And Pressure Vessel Code" requirements.
Materials are in accordance with the requirements of NACE MRO175.
No welding is done to heads, cylinder, top and bottom
clevis or bearing swivel housings.
Engineered design has been reviewed and certified by:
Ball Associates Engineering Ltd.
Dr. Bruce E. Ball, P. Eng.
"The compressor assembly was designed on the intent
indicated in API 618, and exceeds the requirements for ASME
VIII, Division 1 for minimum head and shell thickness requirements
at the pressure ratings stipulated by the manufacturer. The
pressure limitations are determined by the mechanical performance
rather than the pressure retention capability of the vessel.
As a safety feature, the mounting bolts are the structural
limiting feature of the compressor. The materials of construction
are proprietary, but are in accordance with the requirements
of NACE MR0175.
The compressor is designed to be driven by the walking beam
of a pump jack. The location of installation needs to be calculated
when the pump is near the pump jack manufacturer's capacity
to ensure that components of the pump are not overstressed
due to gas compressor installation.
There is no limitation on the operating speed of the compressor
due to the compressor design. Speed limitations are based on
the ratio of water to gas in the casing annulus and the downstream
capacity." - Dr. Bruce E. Ball, c/o Ball
Associates Engineering Ltd
Sizing Formula
By using the formula below, you can arrive at the pressure (PSIA)
that an Annugas Production Enhancer® will draw the casing
pressure down to.
| Formula: |
MCF/D x 1600
S X L X A |
= PSIA |
MCF/D is the gas production of the well.
|
Where: |
S = Strokes/minute of walking beam
L = Length of stroke of Annugas in feet
A = Area of Annugas piston in square inches
P = Suction pressure absolute (PSIA) |
And: |
Diam. of Piston (in.) |
Square Inches |
6
8
10 |
51.5
95.5
152.0 |
|
Example: |
(Model AG648)
S=6, L=4, A=51.5
12MCF/D
|
12 X 1600
6 x 4 x 51.5 |
= 15.5 PSIA |
|
Subtract absolute pressure
(14) to get guage reading |
|
