The client has a preference for equipment from the suppliers specified by Section 7.1 and 7.2 of the Functional Design Specification.
GN is requested to source this equipment and these shall be priced separately. Should this not be possible, GN shall advise Company prior to award via the Exceptions Register and Company may elect to free issue these components.
GN may consider also quoting for alternative brands along with those requested. The following guidance is given:
• All alternative electrical products must be verified to have IECEx certification.
Pump Motors: Products must have IECEx certification. Contractor shall present a case to demonstrate suitability of the motors.
• Lights: Must be LED type, and of rugged construction suitable for oil rig environment.
• Sockets and Switches: Must be from a large supplier of well-known reputation for quality
• Butterfly Valves: Must include SS316 stem and disk. Only valves from a large supplier and of well-known reputation for quality will be considered.
• Pneumatically operated valves and controllers: Alternative brands will not be considered.
• Hammer Seal Unions: Must include the same thread and seal type as the Kemper product and components must be 100% interchangeable with the Kemper components. The client maintains an inventory of these components.
• Air Seal Unions: Must include a seal ring that is similarly 100% interchangeable with the Kemper seal ring. The client maintains an inventory of these components.
Pump Elements: Will only be considered if all components (for example the impeller and mechanical seal) are 100% interchangeable with NOV components.
Full product documentation must be provided for our review of any alternatives quoted. The performance characteristics of any alternatives must be similar to, or the same as the products specified. Section 11 of the Functional Design Specification can be used to reference the specified products performance characteristics.

mud cleaner is installed on the 2 # mud tank, 2 # mud tank is divided into four class. In four tank at the bottom of the separator is equipped with connecting highs of butterfly valve, butterfly valve with high when necessary in the open, connected to each other. Two SB8 x 6 sand pump tied for installation in 1 # mud tank end, respectively, in addition to the sand silt cleaner and cleaner provides the mud;1 # sand pump imports and 2 # mud tank 1 # tank is linked together, at work, extracting 2 # mud tank 1 # tank mud to desanding cleaner for solid-liquid separation, the overflow mouth ventilation with 2 # mud tank 2 # tank; The import of 2 # sand pump mud tank with 2 # 2 # tank is linked together, at work, extracting 2 # 2 # tank mud mud tank silt cleaner for solid-liquid separation, the overflow mouth bubbled into 2 # mud tank 3 # tank/submerged pump tank; In the submerged pump chamber equipped with submerged pump for centrifuge for pulp.

mud cleaner is installed on the 2 # mud tank, 2 # mud tank is divided into four class. In four tank at the bottom of the separator is equipped with connecting highs of butterfly valve, butterfly valve with high when necessary in the open, connected to each other. Two SB8 x 6 sand pump tied for installation in 1 # mud tank end, respectively, in addition to the sand silt cleaner and cleaner provides the mud;1 # sand pump imports and 2 # mud tank 1 # tank is linked together, at work, extracting 2 # mud tank 1 # tank mud to desanding cleaner for solid-liquid separation, the overflow mouth ventilation with 2 # mud tank 2 # tank; The import of 2 # sand pump mud tank with 2 # 2 # tank is linked together, at work, extracting 2 # 2 # tank mud mud tank silt cleaner for solid-liquid separation, the overflow mouth bubbled into 2 # mud tank 3 # tank/submerged pump tank; In the submerged pump chamber equipped with submerged pump for centrifuge for pulp.

Generally, between tank and tank high of butterfly valve is closed, the need to balance is open to open the mud.1, 2 # is sand pump can work independently, can also work at the same time; Through the open butterfly valve, can realize the sand pumping 1 # 2 # mud tank 1 # tank or 2 # tank mud; By the same token, the 2 # sand pumping 2 # mud tank 1 # tank or 2 # tank mud circulation.
In the import and export of every sand pump, equipped with butterfly valve and the soft connection, so that each of the sand pump repair or replacement.

mud pump suction pipe line.

Mud pump suction pipe respectively connected to 2 #, 3 #, 4 #, 5 #, 6 #, 7 #, 8 #, 9 #, 1 # tank;Between tank and tank with a scalable hammer type union is linked together, easy installation, reliable connection.As shown in figure 17 (mud pump suction slurry pipeline)

Drilling mud mixer is used in order to maintain uniformity of drilling fluid and solid particles suspension, and for continuous and reliable drilling mud of drilling fluid solid control system.
GN oil drilling fluid JBQ series mud agitator under 5.5 kW adopt cycloid reducer, JBQ series mud mixer is suitable for oil drilling fluid mixing, compact structure, cover an area of an area small;More than 7.5 kW drilling mud mixer adopts turbine worm reduction drive, has big transmission torque, smooth operation, reliable work, etc.Commonly used mixer model for JBQ5.5, JBQ7.5, JBQ11 and JBQ15.mud agitator shaft
JBQ mud agitator purposes and characteristics
JBQ series mud mixer adopts circular cylindrical worm reducer, shaft section for circular cylindrical worm, turbine tooth profile for round with turbine phase conjugate.So the concave and convex tooth and reliable performance, high efficiency, compact structure.
JBQ series mud mixer reducer combined with explosion-proof motor, easy maintenance, suitable for field use harsh operating conditions.
JBQ series slurry blender mixing intensity big, wide scope, and reduces the starting resistance.
Horizontal JBQ series mud agitator motor, installation, adjustment, easy to change.
Our company is specializing in the production of oil drilling fluid blender manufacturer, welcome customers to inquire.
Mud agitator installation and maintenance
1, the slurry blender when installation should be lifting mixer and placed in the position of the desire to install smoothly, adjust the coaxial degree < 0.39 mm will be 4 M16 hole only after welding on the tanks, fixed and tighten mounting bolts.
Rigid coupling must be equipped with 2, mud agitator trampoline and should be solid and reliable, otherwise it will cause a wave wheel shaft deflection, intensifying gear wear and tear.
3, mud agitator operation should be the same in the ring, cassettes, the high temperature anomalies.Otherwise should stop check, troubleshooting.
4, mud mixer reducer oil level height should be kept in the central visual oil window position, the work can often make up of lubricating oil.It is recommended to use 120 # industrial gear oil.When the site can not meet, also can use other size appropriate lubricating oil

YLS machine is continuously lubrication system. With Timer, it can also used for intermittent lubrication. The lubrication viscosity between 30 ~250 cSt, new lubricating oil is required
Spit pressure can be max. 15kgf/cm². To protect the system peripheral, relief valve is equipped to keep the stability of lubrication system. When the oil level goes down the min, the lubrication system will give Alarm signal, or stop the dryer via external controller.
adding oil: Open the cover and add the clean lubricating oil, to 80% in oil level, then cover it. Only GN appointed lubricating oil or equivalent oil can be used
oil pipe connection: Take the casing pie cap and casing pipe out, put it on the oil pipe. Then, insert the oil pipe into the connection to avoid oil leakage.tumblr_m5a7omfwgO1qmyjkk
installation of power and alarm: Loose the screw and take out the cover of wire, there is pressure signal and level signal underside. There is a fixed head to fix the cable nearby. Rotate out the fixed head and get the cable through. Push it into wire cover and then fix the cable.
Connect the pressure signal and level signal. When the level close to Min. level, the level signal will give alarm; when the oil pressure reach to 2.1 kgf/cm², the pressure signal breakover.After finish the connection, cover the cable, fix the fixed head. If all the connection iscorrect, the lubrication system will work.
Note: the pressure switch and level switch is not ex-proof. Customer can do some actions to make it ex-proof.
pressure adjustment: Loose the screw of adjustment valve, (EX-works 15kgf/cm²), switch on the power. When the oil flow out 5~10s, then tighten the adjustment valve

GN solids control decanter centrifuge Installation
Centrifuge installation
1). Choose suitable lifting device and sling.
2). Cranes and slings can not bear excessive load, regular check shall be given to the slings so as to ascertain whether they are in good state.
3). The hall be checked before lifting to ensure that the strength of the sustained centers meet the requirement of hoisting.
4). Make sure the installation platform is firm enough to bear adequate weight.
5). Remove all the traportation protection device (bowl fixing belt, fasten belt and fixing bolts).
6). Connect inlet and outlet pipelines (use flexible joint for connecting point), overflow pipe, and solids discharge slot.
7). Connected with power supply (Switch controller between control panel and power supply is necessary to ensure safety of wiring).
Electrical installation
Warning:
A. Read carefully of centrifuge user manual and Control cabinet user manual before operating.
B. Strictly forbidden to open the control cabinet with power on. Only open the door after power cut off.
C. Any installation and inspection of electrics must be operated by professionals
The main motor, back motor and temp. sensors of VFD centrifuge has connected well to the aviation plug panel, users are supposed to connect cables with reference to VFD control cabinet user manual.
OperationGN decanter centrifuge
Preparation before operation
Ⅰ. Check below items to make sure all in good condition. Any abnormal conditions should be solved properly and in time.
1). Check and make sure all parts of the centrifuge assembled well.
2). Check and make sure the bowl fasten belts are removed.
3). Rotate the centrifuge bowl manually and check if there is any blocking or other abnormal condition.
4). Check and make sure the oil level of hydraulic coupler and gearbox is accordence with request.
5). Check and make sure the B-belt is suitably tensioned.
6). Check and make sure the belt covers and collection box top cover are closed well, bearing base, feeding pipe and control cabinet are screwed down well.
7). Check the 3-phase power supply is connected well.
8). Check the reset function of all switches, operating device, control bottom, and make sure they are flexible and in right position.
9). Check and make sure the control cabenit are mounted well.
10). When restart the centrifuge after long stop, measure motors with 500V megger insulation resistance, the centrifuge can be run only if the resistance ≥ 0.5 MΩ.
11). check and make sure the ground connection is reliable. Measure the grounding resistance if necessary.