The CEEM AHWUs (HWO), 460K, 235K, are designed to be rigged up as a stand-alone unit. It is to be used for the work over the existing wells Offshore and Land based. The rig is designed to complete all work-over functions completed by a conventional rig with the additional capability of working with pressure in snubbing and under-balanced situations. Visit our website: www.ceemfze.ae for more information

1. WORKOVER UNIT
ADVANCED HYDRAULIC

2. CEEM as a recognized supplier of oilfield equipment has become a solution provider
to the oil exploration and production sector. CEEM has routinely implemented
improvements to equipment designs and provided operational solutions with
specially designed equipment.
CEEM has participated in the refurbishment and enhancement of equipment owned
by all of the Major HWU suppliers. In doing so it has developed a strong sense of
market requirement and has a wealth of knowledge related to HWU services and
commercial requirements.
CEEM has now assembled a package consisting of all the advancements made to
the hydraulic work-over units as well as bundling of all of the support equipment
that has brought success to many projects.
An Introduction to CEEM’s AHWU

3. 460K AHWU
The CEEM 460K AHWU is designed to be rigged up as a stand-alone unit, and to
be used for the work over of existing wells Offshore and Land based. The rig is
designed to complete all work-over functions completed by a conventional rig with
the additional capability of working with pressure in snubbing and underbalanced
situations.
The CEEM 460K AHWU containerized rig standard package
consists of:
Hydraulic jack
Main work basket
Main control panel
Main winch panel
Tong panel
Counterbalance panel
Basket riser workover (two meter height)
Basket riser drilling (three meter height)
Telescopic derrick
Counterbalance winches (two units typical)
Main winch (15 ton)
Rotary table
Tong delivery
Work window (three meter inside height)
Adjustable work windown plate (within jack frame)
Lower basket
Mid level basket
Work window basket

4. The CEEM 460K AHWU has the following advantages compared
to a conventional rig:
No drill line required (no slipping or cutting drill).
Function of mast for lifting single joints of pipe and bottom hole assemblies
Individual component weights can be reduced to 8 tons
Low center of gravity.
Unexpected pipe movement maximum 10 feet
Can accommodate any bop stack configuration.
Under-balanced operations and snubbing operations integrated
Small operational footprint
Noise reduced to minimum.
The CEEM 460K AHWU has the following advantages
compared to a conventional HWU:
Simplified rig up
All parts of the rig are compatible as they have been designed to work in a
system
All components are sized to fit in standard shipping containers
All spares and consumables have custom storage to protect the asset until it is
required
15 ton main winch for deploying and recovering bottom hole assemblies
Individual component weights can be reduced to 8 tons
Rig components have been simplified in order to utilize less experienced
personnel
Equipment has been built with common components used in other standard
equipment allowing for purchase from common vendors world wide
Equipment has been built to withstand in field abuse and neglect and require
only the most basic maintenance of lubrication and service

5. Modular Design
The CEEM 460K AHWU containerized rig achieves its most fundamental profit
enhancement by being modular with all components containers sized.
All components within container dimension
All components can be disassembled to achieve a maximum per piece weight
of 8 tons
All materials have designated storage or shipping frames within the package to
protect them
All components have API lifting eyes for loading, unloading and assembly
Environmental Conditions
The rig is constructed for the following environmental conditions.
Minimum water temperature : N/A
Maximum water temperature : N/A
Ambient extreme maximum : +50º C
Design temperature. min. (class) : -20º C
Atmosphere : Salty & corrosive
Maximum relative humidity : 100%
T
Design Loads
he CEEM 460K AHWU containerized rig is designed to meet expected operational
loads and comply with applicable API guidelines. All steel structures are modeled
and verified by FEA prior to build. After construction materials are proof loaded as
required and NDT is completed
Design Features
All components are able to be shipped inside of shipping containers
Jack
HUSCO valve mounted on milled flat bracket to ensure zero tension on housing
that may cause spool sticking
HUSCO valve piping connected by way of fully machined manifold block to
prevent any tension on HUSCO valve body
Hydraulic piping is 2.5 inch through the tee and then reduces to 2 inch to the
cylinders allowing for maximum flow
CEEM designed swivel flanges on hydraulic piping allowing for zero stress
connection with perfect flange alignment
Valves for two leg four leg selection are full port 2.5 inch flanged connection
Hydraulic piping from barrel end of cylinder is routed on backside of post
allowing for maximum work space in window area
Threaded connection on the piping are joined by flanged connection making for
quick repair in the event a threaded connection becomes damaged
Hydraulic cylinders are manufactured with full opening flange on rod end
allowing for rod and piston to be removed through the opening. This allows rod
and piston service with pipe in the hole and no requirement to rig down

6. Jack is assembled with four posts that form the structure of the jack, cylinders
are not stresses by forces other than the movement of tubulars
Jack cylinders can be removed from jack through the top of the jack frame. This
can be done with pipe in the hole and no requirement to rig down
Jack work window
Jack work window is formed by the main posts of the jack and has line bored
holes at 300mm intervals bored on each post
Jack work window plate can travel the full length of the jack structure allowing
the slips to be positioned at any height
Jack work window through manipulation of slip position can be utilized to create
an effective stroke of 20 feet for the removal / installation of long tool assemblies
Jack work window plate can be positioned near the top of the frame allowing
banding of cable to completed below the slip bowls
Main workbasket
Folding design allows for transport and storage inside a standard shipping
container
Flat finished floor with zero projections above the grating
All floor gratings are hot dipped galvanized
All floor gratings are removable for repair and replacement by threaded fasteners
All main run hydraulic hoses are located within the floor structure and are covered
by stainless steel bulkhead plates complete with stainless steel fasteners
All panels are mounted in the basket by threaded fasteners and are left in
position during normal shipping (folded basket)
Connected to basket riser by way of three inch acme threaded fasteners
Control panels
All panels are constructed of 316 stainless steel
All control levers are profile cut 316 stainless steel
All knobs and dials are machines 316 stainless steel
All fasteners are stainless steel
Control panel lever locks have been designed to operate in both working
positions and neutral position
Control panel lever lock pins are connected to the panel by stainless steel
1000kg test braided line
Control panel lever locks have convenient storage hole adjacent to the lever
assembly they are used with

7. Derrick
Crown assembly is bolted construction
allowing easy assembly / disassembly for
inspection and service intervals in the field
Crown assembly is mounted on a hinge pin
allowing the crown assembly to tip up so
the derrick can sit on the ground or work
deck directly requiring no special stands
Derrick has rollers built in to the base and
tip so that it can be tailed in/out easily
during rig up/down as well as for rolling in/
out of containers for storage and shipping
Derrick rigs in from the horizontal
requiring a lower sling lift height than the
workbasket for placement
Derrick is pinned in the extended position
by way of spring over hydraulic locks
Cylinders are double rod design with
internal rod pushing a 75mm 4130 pin that
locks the travel of the derrick extension
Exterior rod shows to workers as a visual
indication of lock position, rod flush to outside
of cylinder barrel end lock is engaged, rod
showing lock is in the open position
Counterbalance winch
Winches are mounted over/under allowing
both winch drums to run centerline
and cable is spooled evenly across the
centerline of the drum
Main winch
Winch is strung as two line utilizing die formed cable to reduce overall cable size
Winch block is designed to have 20 percent greater weight than cable on back
side when block at crown to provide no load travel down from crown
Winch block is slim line to allow for minimum distance between counterbalance
winches and provide all three winches with near to center hole operation
Jack plate guide
Jack plate is guided on rails to dampen torque pulsations from rotary table
Guide in drilling riser is full stroke
Guide in work over riser is half stroke
Guide is utilized on derrick deployment
Rotary table hose guide
Rotary supply, return and case drain hoses are protected from snagging during
continuous rotating and jacking operations
Hoses are kept out of the way of workers and do not block entry or exit to the
work floor
Break/make cylinders
Located on bottom side of basket
Left Side / Right side
Used for operating manual tongs in work basket
Hydraulic hose connection
Hydraulic hoses at work basket level are connected with special pipe ends with
integral lifting eye