Here is How to choose a fitful mud agitator for drilling mud solids-Revomal.
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Presume: A compartment is 30 feet long, 10 feet wide, and 10 feet high (Figure1). Maximum mud weight is anticipated to be 16 lb/gal (1.92 SG).
If the maximum mud weight is not known, use 20 lb/gal fluid density
(2.4 SG).
All compartments will be solids-removal sections.
Convert the compartment to symmetrical shapes. In this case, three
compartments 1010 feet square (33 m). Determine the volume for
one compartment (Vt).
Vt = 10 × 10 × (10 − 1) × 7.48
Vt = 900 × 7.48
Vt = 6732 gal.
Since the tank is deeper than 6 feet, flat (turbine) impellers cannot be
used; therefore, canted impellers are chosen. Locate the appropriate
impeller diameter from the impeller displacement table D (see Table 10.2)
so that TOR is within the recommended range. As a rule, choose an
initial impeller displacement value so that D is close to Vt to increase the
accuracy of the selection. In this case, the gpm value for 60-Hz service is
close to the 38-inch impeller (6343 gal).
TOR = [Vt⁄D] × 60
TOR = (6732⁄6343)×60
TOR = 1.06×60; or about 64 seconds.
table 1 Power Requirements for Canted Impellers per Fluid Density
Impeller Diameter
Power
20 ppg (2.40 SG)
16 ppg(1.92 SG)
12 ppg(1.44 SG)
8.3 ppg(1.00 SG)
Hp
Kw
In
Cm
In
Cm
In
Cm
In
Cm
1.0
0.7
22
56
24
61
26
66
29
74
2.0
1.5
26
66
28
71
30
76
32
81
3.0
2.2
29
74
31
77
33
83
34
86
5.0
3.7
32
81
34
86
36
91
38
97
7.5
5.6
35
89
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37
94
39
100
42
107
10.0
7.5
37
94
40
102
43
109
46
117
15.0
11.2
42
107
45
114
49
123
51
130
20.0
14.9
46
117
50
126
25.0
18.6
49
124
30.0
2.4
Compare this TOR to values in Table 10.1 and determine suitability
for compartment purpose. In this example, the TOR is sufficient for
solids-removal compartments. If a lower numeric value to cause faster
fluid movement is desired, then choose a larger impeller. If less movement is desired, choose a smaller impeller and recalculate until the
appropriate values from Table 10.1 are achieved.
After determining which impeller will produce the effective TOR,
locate the size in the Impeller Diameter columns in Table 1. In
this case we anticipate using a 38-inch impeller and 16-ppg fluid. Since
there is no 38-inch value in the 16-ppg column in Table 10.3, we must
round up to the next highest value, that is, 40 inches. This allows for a
safety factor should the mud density increase slightly. Follow the 40-
inch impeller value horizontally to the left in Table 1 and determine the horsepower needed for that application. In this case, a 10-hp motor is
sufficient. Therefore, three 10-hp agitators with 38-inch canted impellers
are suitable for the tank in this application.
It should be noted that this system is for one brand of agitator, and
the values in the tables may not apply to all brands. Deep tank designs
require that multiple blades be mounted on a single shaft. This involves
more thorough calculations than those shown. Because of this, it is
highly recommended that the manufacturer or supplier be consulted
before final design or placing of an order for any application.
Mud mixing and transfer equipment is an essential component of the oil and gas drilling process. It is used to mix drilling mud, which is a mixture of water, clay, and various chemicals, and transfer it to the drilling rig. Properly mixed drilling mud helps to lubricate and cool the drill bit, flush out drill cuttings, and maintain pressure in the wellbore.
In this article, we will provide a comprehensive guide to the different components of mud mixing and transfer equipment, including the mud mixing tank, mud agitator, mixing and transfer pump, mud hopper, LED lamp, control cabinet, and spare parts.
Mud Mixing Tank
The mud mixing tank is a large container used to mix drilling mud. The tank is made of national standard high-quality steel with a thickness of 6mm on the sides and 8mm on the bottom. The tank measures 5500x2300x2100mm and comes with pipelines, valves, a clean gate, stairs, handrails, and a walkway.
Mud Agitator
The mud agitator is used to keep the drilling mud in the mixing tank properly mixed. The agitator is model APMA055A with a 5.5KW motor and a single impeller that is 550mm in diameter. The impeller speed is 60RPM, and the shaft stabilizer is available. The shaft length depends on the depth of the tank, and the agitator is manufactured according to API standards. The agitator comes with a SOG oil seal, less wearing parts, and top brand bearings, electrical motor, and gearbox.
Mixing and Transfer Pump
The mixing and transfer pump is used to transfer the mixed drilling mud from the mixing tank to the drilling rig. The pump is model APSB4x3 with a 15KW motor, a flow rate of 80m³/h, and a head of 21m. The pump speed is 1450 (50Hz), and it has a mechanical seal made of durable tungsten carbide alloy material. The pump has a 4” inlet and a 3” discharge and is interchangeable with the Mission Magnum pump. The pump comes with seaworthy packing.
Mud Hopper
The mud hopper is used to add chemicals and other additives to the drilling mud to change its properties. The hopper is model APSH600-20 and is a venturi hopper. The hopper comes with a cutting table, isolation valve, pipelines, and fittings. The hopper design is a typical venturi and educator inclusive.
LED Lamp
The LED lamp is an optional component that provides lighting for the mud mixing and transfer equipment. The lamp is model APLZM50 with a 0.05KW power output.
Electrical Control Cabinet
The control cabinet is used to control the mud mixing and transfer equipment. The cabinet has a total power output of 42KW and is designed for a power system of 220V/50Hz/3 Phase.
Spare Parts
The spare parts include a mechanical seal, part number 22451, for the APSBCENTRIFUGAL PUMP.
Conclusion
Mud mixing and transfer equipment is an essential component of the oil and gas drilling process. The different components of the equipment include the mud mixing tank, mud agitator, mixing and transfer pump, mud hopper, LED lamp, control cabinet, and spare parts. These components work together to mix and transfer drilling mud to the drilling rig, ensuring that the drilling process is efficient and effective. When selecting mud mixing and transfer equipment, it is essential to consider factors such as the flow rate, head, and power output to ensure that the equipment can meet the demands of the drilling process.
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