MOCKBA SCREEN LLC
INTRODUCTION
MOCKBA SCREENS LLC
MOCKBA SCREEN LLC is engaged in manufacturing, supply and export
of superior quality shaker screens. MOCKBA SCREEN LLC has
manufacturing facilities at Austria (EU) and distribution networks at
Dubai, Canada, Qatar and India. We mainly produce shaker screens of
Derrick, Brandt, Mongoose of various mesh size. We also produce
Hydrocyclones and polyurethane screens.
MOCKBA SCREEN LLC
Shaker Screens
Your First Line of Defense
Shaker Screens are used
during the well construction
phase of every drilling
project and in conjunction
with the Shale Shaker are the
first line of defense in solids
removal from the drilling fluid
system.
Using proprietary mesh
technology our products
deliver reliable solids removal
capability combined with high
fluid processing rates and
outstanding operational life.
MOCKBA SCREEN LLC
Reduce Drilling Costs
API RP 13C (ISO 13501)
Complaint Screen
Mockba screen LLC the API RP 13C
screen labeling practice and has
implemented this labeling on our complete
screen panel product offering.
API’s NEW API RP 13C (ISO
13501), the industries standard for
physical testing and labeling procedures of
shaker screens.
Initially screens were easy to describe.
They were square mesh made with market
grade wire. The mesh size was the number
of openings per inch in two directions.
The new recommended screen
labeling practice provides the
following API RP 13C information:
API Designation
Conductance in kD/mm
D100 Value
Non-Blanked Open Area in Square Feet
MOCKBA SCREEN LLC
API RP 13C (ISO 13501)
As an independent replacement screen manufacturer, Mockba Screen LLC has taken
extensive steps to follow the guidelines established by the American Petroleum Institute
for proper labeling with “Replacement Shaker Screens”. API RP13C compliance in
the testing procedure means that manufacturers test certain meshes using the spelled
criteria within the test. The manufacturers then label both their screens and their screen
packaging with the results of the test and are then API compliant. The procedure tests
mesh performance down to a specific micron. That micron number falls into a range
of microns. Mockba screen LLC compliant meshes are listed above, along with Table 5,
page 40 and 41 of the testing procedure to show the breakdown of API numbers and
the range of microns that fall within the API number.
Please note: Mockba screen LLC acknowledges that lab tests and actual performance
of the screen in the field are completely separate, and not to be interpreted as being
the same. The API designation is merely a unified labeling system set out to provide a
common thread amongst all of the screen manufacturers. In no way does the API
designation determine actual screen life, or the ability of one screen to outperform
another.
Table 5 found on page 40 and 41 of API RP 13 C
D 100 SEPARATION AND API SCREEN NUMBER
D 100 Separation (microns) API Screen Number
> 780, 0 to 925, 0 API 20
> 655, 0 to 780, 0 API 25
> 550, 0 to 655, 0 API 30
> 462,5 to 550, 0 API 35
> 390,0 to 462, 0 API 40
> 327,5 to 390, 0 API 45
> 275, 5 to 390, 0 API 45
> 231, 0 to 275, 0 API 60
> 196,0 to 231, 0 API 70
> 165, 0 to 196, 0 API 80
> 137, 5 to 165, 0 API 100
> 116, 5 to 137, 5 API 120
> 98, 0 to 116, 5 API 140
> 82, 5 to 98, 0 API 170
> 69, 0 to 82, 5 API 200
> 58, 0 to 69, 0 API 230
> 49, 0 to 58, 0 API 270
> 41,5 to 49, 0 API 325
> 35, 0 to 41 , 5 API 400
> 28, 5 to 35, 0 API 450
> 22, 5 to 28, 5 API 500
> 18, 5 to 22, 5 API 635
MOCKBA SCREEN LLC
Mockba screen LLC offers quality, reliability and performance in a direct replacement for
OEM screen panels
Mockba screens LLC manufactures OEM replacement screens
for most shale shakers on today’s market. Mockba screens LLC
manufactured replacement screen panels for OEM shale shakers
combine proven mesh combinations with an innovative, precision
punched patterned plate to improve separation efficiency of the
shaker, while extending screen life. These Mockba screens LLC.
manufactured OEM replacement screen panels are engineered to
meet the exact design specifications of the OEM shale shaker and
can be installed directly on the unit using the stock tensioning
system in place. Mockba screens LLC manufactured replacement
screen panels are available in a variety of mesh combinations to
best suit the needs of your drilling program. Mockba screen
LLC is capable of manufacturing custom “odd size” screen
panels for absolute shaker that are still operation.
Mockba screens LLC
lineup includes, but
not limited to:
Derrick® Equipment
Company
NOV® Brandt™
National®
M-I SWACO®
And many others
MOCKBA SCREEN LLC
Repairable Plate (PWP) Screen Panel
Mockba PWP screens are constructed of three
screen layers bonded to a perforated metal plate
for added support and facilitation of repair.
Bonding squares help maintain cut point
integrity by stabilizing the sandwich screen,
increasing durability by reducing screen flutter,
and isolating any screen failures. The screen
may be repaired using the stainless steel plugs
supplied with the panel or by application of
silicone rubber.
Flow-Line® Cleaner 2000 & flow-line® Cleaner Plus (Pyramid and Pyramid Plus Screens
(PMD and PMD+)
Mockba screens LLC has revolutionized
screening technology with the patented Pyramid
(PMD) and Pyramid Plus (PMD+) screens.
These revolutionary three-dimensional screens
offer the benefits of traditional flat multi-
layered screens while adding a significant
increase in usable Pyramid Screen (PMD)
screen area. The result is a screen that increases
fluid handling capacity. Pyramid and Pyramid
Plus screens provide an easy, cost effective
increase in shaker performance. Designed with
the latest technology, Pyramid screens allow
rigs to screen finer earlier in the drilling
process, thus significantly reducing mud and
disposal costs. All Derrick screens are API RP
13C compliant.
600 Series
Derrick’s 600 Series screens, available in Pyramid and Pyramid Plus panels, are used on all Dual
Pool 600 series shakers. The DP 600’s innovative actuated screen compression system drives the
center of the screen panel downward, firmly sealing the screen panel to the screen frame.
Compression benefits include extended screen life, improved conveyance, elimination of ultra
fine solids bypassing under screen panels and fast, user-friendly screen changes. Derrick’s long-
life urethane panels are used on models equipped with the scalping deck option.
DERRICK EQUIPMENT COMPANY
MOCKBA SCREEN LLC
API RP 13C Non - Blanked Screen Area
PMD PMD+ Urethane
DP 616 29.1 sq. ft. 35.01 sq. ft. –
DP 626 29.1 sq. ft. 35.01 sq. ft. 12 sq. ft.
DP 618 38.8 sq. ft. 46.68 sq. ft. –
DP 628 38.8 sq. ft. 46.68 sq. ft. 16 sq. ft.
500 Series
API RP 13C Non - Blanked Screen Area
PMD PMD+
FLC 513 24.9 sq. ft. 34.5 sq. ft.
FLC 514 33.2 sq. ft. 46.0 sq. ft.
48x30 Series
Derrick’s 48 x 30 screens fit all Derrick FLC 2000 3- and 4-panel shale shakers, FLC with
AWD, FLC Plus, HI-G Dryer and the Cascade 2000. They are available in Pyramid, Pyramid
Plus and PWP panels. Fast, easy and reliable screen panel tensioning is provided by two pairs of
Rapid-Change draw bolts on each side of each screen panel.
API RP 13C Non - Blanked Screen Area
PMD PMD+
FLC 2000 3-
panel 24.9 sq. ft. 31.95 sq. ft.
FLC 2000 4-
panel 33.2 sq. ft. 42.6 sq. ft.
MOCKBA SCREEN LLC
Composite frame screens: In order to meet the high demand the composite material screen is
used which could be using for longer time. Moreover, comparing with steel frame screen, the
composite material screen is much lighter. Easy for hand moving and changing. Composite
frame screen have longer service life, better appearance, and convenience on operation.
Steel frame screens: are mostly applied to the shale shakers with wedge fastening equipment.
The screen frames adopt high strength square steel tube welded to the perforated panel. They are
sturdy and reliable. These screens are constructed with two or three stainless steel layers bonded
to a steel support panel. Accessory rubber plugs may be used to repair the broken layers. We can
supply steel frame screens with mesh 20 -250.
MOCKBA SCREEN LLC
Shaker Screens
Reducing costs, waste volumes with exclusive shaker screen line
Mockba screens LLC manufactures M-I SWACO replacement shaker screens that combine
multiple mesh sizes with our patented composite frame technology to provide higher throughout
and longer life. Mockba replacement screens for M-I SWACO, Derrick, Brandt/NOV, and other
shaker brands, the exclusive line of long-lasting composite screens optimizes solids control
efficiency to reduce costs and waste volumes for any targeted formation and drilling application.
Mesh sizes for any solids control challenge
Our ultra-durable, API-compliant composite screens are available in a broad range of mesh
grades, including the patented XR mesh, which can be matched to meet the distinct solids control
challenges of different formations
Cost effectiveness without compromise
By combining a wide variety of mesh sizes with composite screen technology, Mockba screen
provides operators the flexibility of selecting the most cost-effective mesh without
compromising screen life or higher throughput capacity.
SWACO MONGOOSE SCREENS
MOCKBA SCREEN LLC
Next-generation composite screens
The Mockba line of composite OEM and replacement screens deliver even longer screen life,
greater ease of repair, higher capacity and greater cost effectiveness than metal-framed and other
conventional products.
Greater screen life and higher throughput capacity
Mockba composite screen technology effectively eliminates the inherent performance-limiting
problems of conventional metal frames, including rusting, delamination and a heavier and
reduced processing area. Mockba composite screens have as much as twice the functional life of
screens mounted on metal and can handle appreciably higher throughput capacity.
Innovative technology and groundbreaking design
Mockba composite screens include a glass fiber-filled, polypropylene frame bolstered with an
internal high-strength steel reinforcing structure. Using a patented process, one to three layers of
stainless steel wire cloth are bonded directly to the composite frame.
Longer screen life, ease of storage and re-use
The composite frame design encompasses the “window pane” effect that includes an increased
number of smaller panels, evenly distributing mechanical stresses and limiting mesh damage to
small localized areas. Conducive to rusting, Mockba composite screens can be used, stored and
re-used on future wells.
Reduced screen weight to enhance shaker G-force
Mockba composite screens weight about the same as our first generation composite HI-FLO
screens. However, they weigh up to 40% less than traditional metal-framed screens. Lower
screen weight, in turn, enhances shaker G-force.
Easy, fast screen repair from patented SNAP-LOK system
The patented SNAP-LOK plug-repair system is available on Mockba composite screens for the
M-I SWACO BEM-650 shale shaker and NOV Brandt VSM 300 shakers. The innovative SNAP-
LOK system reduces screen repair time to less than two minutes. Repair is a simple matter of
removing the screen from the shaker and snapping in a factory-made plug.
MOCKBA SCREEN LLC
Mockba replacement Screens for BRANDT shale shakers, which include the COBRA, VSM
and LCM Series shakers. Replacement screens are also manufactured for competitor equipment.
Replacement screens for competitor shale shakers combine proven mesh combinations with an
innovative, diamond-patterned plate to improve separation efficiency of the shaker, while
extending screen life. These Mockba replacement screens are engineered to meet the exact
design specifications of the competitor’s shale shaker and can be installed directly on the unit
using the stock wedges. Replacement screens are available in a variety of mesh combinations to
best suit the needs of the drilling application.
Mockba screens will enable you to gain the best energy transfer from the basket to the screen
surface while maximizing screen vibration which increases conductance (flow), cut point, and
minimizes non-blanked open area on screens.
Replacement Shaker Screens
Mockba manufactures replacement screens for competitor equipment. Mockba manufactured
replacement screens for competitor shale shakers combine proven mesh combinations with an
innovative, diamond-patterned plate to improve separation efficiency of the shaker, while
extending screen life. These manufactured replacement screens are engineered to meet the exact
design specifications of the competitor's shale shaker and can be installed directly on the unit
using the stock wedges. Mockba manufactured replacement screens are available in a variety of
mesh combinations to best suit the needs of the drilling application.
Original Equipment Manufactured (OEM) Shaker Screens
Mockba supports the API RP 13C screen labeling practice and has implemented this labeling on
the most popular screens, including the RHD and XF series. The new recommended screen
labeling practice provides the following API RP 13C information:
API Designation
Conductance in kD/mm
D100 Value
Non-Blanked Open Area in Square Feet
BRANDT COBRA SCREENS
MOCKBA SCREEN LLC
SHAKER SCREEN MANUAL
MOCKBA SCREEN LLC
The Solids Control process may seem like a complicated matter; but, in fact, it is very simple.
The object of the exercise is to remove as many drill solids at the flow line as possible. If
solids slip past the shaker they will be sheared (broken up) either by centrifugal pumps,
agitators or drill bit on the next circulation. This makes the solids smaller and more difficult
to remove the second time they pass through the system. The more low-gravity solids
removed at the flow line, the better. In order to remove the maximum amount of solids, all
solids control equipment must be in good operating order. You can help keep these units in
good working order by periodically inspecting the machine and reporting your findings to the
pusher.
The Flow Line Shaker is the primary line of defense in removing these solids. This apparatus
is designed to remove the largest particle sizes, generally larger than 72 microns. These units
run at different speeds, strokes and G-Forces. Without getting into too much detail, stroke is
the amount of movement in the shaker bed. G-Force represents the amount of energy applied
to the shaker bed. And speed is dictated by motor speed. While the shaker will separate better
at higher G forces, shaker screens are subjected to higher amounts of abrasion from solids and
mechanical force. G-Forces in excess of 7 and above have been shown to be detrimental to
screen life and the shaker itself. Most shale shakers run between 3.5 G’s and 6.5 G’s With
today’s screens, we can expect screen life of 4 to 14 days depending on loading conditions
and mud weights.
Screen performance is measured by the amount of solids that pass through them (conveyance)
and the specific size material they are separating (cut point). The cut point is measured in
microns. In order to illustrate just how small the screen openings are, please consider these
facts, knowing that 26,000 microns equals one inch - a human hair is approximately 90 microns
in diameter. Talcum powder is roughly 30 microns in diameter; thus, performance of solids
control equipment is measured by its ability to remove particles in these size ranges.
As the primary separator, the shaker will remove the primary share of drilled solids if
screened correctly. There are no rules set in stone; but, there are many practical methods of
sizing shaker screens. Normally, screen progression begins with a shaker screen having a
larger opening, and then use progressively finer meshed screens throughout the well. In
most cases the consultant or mud engineer will determine what initial screen size is desired.
Each shaker is slightly different in appearance, but each operates in very similar fashion.
Mud is introduced into the “Possum Belly” from the flow line. It is then channeled over a
weir gate, onto the energy plate, and finally over the screens. As flow rates are commonly up
to 350 G.P.M. per shaker, the shaker screens need to fit well and seal totally on the shaker
bed. As fluid then passes over the shaker screens, separation of the drilled cuttings from the
actual drilling fluid is accomplished.
The fluid should completely cover at least the first 2 screens of the shaker, leaving the 3rd
screen to dry the cuttings somewhat before being discharged. As screens are made up of at least
3 layers of wire, there is some abrasion between meshes. Running fluid over screens keeps the
wire cloth lubricated, extending life.
MOCKBA SCREEN LLC
for wear. A little time on the tanks allows everyone involved to know that you are
interested in more than just selling screens.
Most people do not realize how much material the shakers actually process. If we
take a 12-¼ inch hole being drilled to a depth of 8,500 feet, the screens have
conveyed 382.56 tons of drilled material. This doesn’t include the constant weight of
fluid used to remove cuttings from the well bore. Most of this material is very
abrasive on the top layer of wire cloth. If you have ever tried to tear a piece of 210
mesh wire cloth, you will understand how fragile it really is. So when you hear a
consultant ask, “why did my screens fail in 3 days?”, remember the figures listed
above before you decide on premature failure of a screen.
Most shakers use either balanced elliptical or linear motion. Linear motion is common
and is expressed as a straight line of movement by the shaker basket. The basket moves
horizontally conveying solids in a straight line motion. Balanced Elliptical motion uses
circular and linear motion to create an elliptical motion. Depending on the formation
that is being drilled through, each motion has its advantages and disadvantages.
Regardless of what motion the machine, they all use the same type screens and have
similar problems.
Most problems you will encounter in the field are traced back to operator error or abuse.
Most rig personnel have little or no solids control knowledge, and they rely on more
experienced hands and mud engineers that have only basic knowledge about the solids
control equipment they run. A derrick hand has to work the rig’s derrick board , mix
all the chemicals for drilling mud, keep the mud to the proper weight, keep the mud
engineer and consultant informed of mud properties, watch for increase or decrease in
mud volume, and run all equipment on mud pits as well as keep an eye on the mud
pumps. In other words he doesn’t have time to baby-sit shale shakers. If they are
running, he is happy. He does not really care what screens are on the shaker or mud
cleaner. Realize that he can help you sell your shaker screens if he does not have to
change them every day. So walking the tank and watching for shaker problems will help
you both. Making a tool pusher aware that he is missing a tension bolt, will keep your
screen from failing, which makes the derrick hand’s job easier, which gets you a
“thumbs up” when the company man asks how your screens are doing.
As screens are being installed on the shakers, no tools, boards, bolts or any other items
should be placed on the wire cloth. Make sure screens have been properly sealed against
the shaker bed. Make sure the screen is secure and not loose fitting. A loose fitting
screen will not convey material. Make sure there are no hammer strikes directly on
screens, using the wedge blocks. Look for missing or bad tension bolts on the units that
use them.
MOCKBA SCREEN LLC
Some misunderstood things about Shale Shakers.
“Replacement Screens Will VOID a Warranty”
The Original Equipment Manufacturers (OEM) are trying to force the issue on using their
screens on their own equipment. It has been said that in most cases the OEM will cancel the
warranty on their shakers if you do not use their screen. It is our understanding that NONE of
the OEM ever warranted their shaker baskets. To our knowledge, when asked, they will admit
the shaker frame or bed is warranted for defects such as cracking, warping etc., but not for
wear.
“Replacement Screens Will Ruin the Shaker Basket”
All screens wear out the cushions, support rubbers, seals, cross and side supports etc. of the
shale shaker. When asked about replacement screens, OEM’s cite that wear on these items
occur faster using screens other than OEM screens. We must remember that these items are
expendable items and are to be replaced at frequent intervals. How quickly depends on
several factors. Screens cannot be the sole factor considered for replacement of these items.
“The “Replacement” screens are heavier than the OEM screens, thus somehow impacting
the life and performance of the shaker.”
Every manufacturer of shaker screens builds their screens in a different manner. Some screens are
lighter than others, and some screens are heavier than others. Some are made of a lightweight
composite material, while some are made from steel tubing. The myth here is that the weight
difference between the OEM vs. Replacement Screen would somehow affect the life of the shaker
itself.
For these purposes, let me offer you the following example:
If a shale shaker is under normal operating conditions, the shaker bed will be flooded with at
least 50 gallons of fluid. Some shakers will run 84 gallons of fluid. At 10ppg this equals 840
pounds displaced over the 4 screens, an average of 210 pounds of fluid per screen.
Now, does anyone really think 8-10 pounds in screen weight will matter?
If so, how can the shaker withstand 17ppg mud weight with an average of 357
pounds of fluid per screen?
As you can see the weight between OEM screens vs. “Replacement” screens really does not
impact the shaker in field application.
There are a number of other myths about screens and shakers. Just remember when you
hear the next tidbit of “free advice”, be sure and “check the price.”
MOCKBA SCREEN LLC
MOCKBA SCREEN LLC
MOCKBA SCREEN LLC
CONTACT INFORMATION STOCKING POINT
Middle East:
Hamriya UAE;
Free Zone Company - F.Z.C
LOCATION-BLOCK:H1
Office No:SM-OFFICE-H1-229B
Email: [email protected]
Qatar:
No: 6, Al Rowda, Block no 33,
Near Pearl Indian School.
Email: [email protected]
Canada:
Unit # 32 - 16233, 83 Ave
Surrey, BC V4N 0Z3
Canada
Email: [email protected]
India:
No. 186, 1st Main, Vijaya bank colony,
Belekahalli, Bangalore.
Email: [email protected]
Middle East:
Hamriya UAE;
Free Zone Company - F.Z.C
LOCATION-BLOCK:H1
Office No:SM-OFFICE-H1-229B
Qatar:
No: 6, Al Rowda, Block no 33,
Near Pearl Indian School.
Canada:
Unit # 32 - 16233, 83 Ave
Surrey, BC V4N 0Z3
Canada
India:
No. 186, 1st Main, Vijaya bank colony,
Belekahalli, Bangalore.
CONTACT INFORMATION AND STOCKING POINT