Jan 08

Mud agitator is one of the most popular equipment for drilling mud systems. It is mainly used to keep both the mud uniformity and the suspension of solids. The mud agitator is used to agitate the mud consecutively and reliably. This agitator agitates the mud to make the cuttings silt and sand pass the solids control system without being precipitated onto the tank bottom.

According to the different types of gearbox design, the mud agitators can be divided into 2 kinds:
The most popular design is worn and gear reducer mud agitator.

The worn and gear reducer mud agitator is an economic standard mud agitator. The mud agitator is equipped with explosion proof motor, worn and gear reducer. The worn and gear reducer is working stable and cost effective. It is also easy for maintenance.

Another kind of agitator is equipped with heavy duty helical bevel gearbox. We call it helical bevel agitator.

The mud agitator is equipped with heavy duty helical bevel gearbox. Compared with traditional worn and gear gearbox, the helical bevel agitator is with a bigger torque. It is more powerful for heavy mud. The heavy duty helical bevel mud agitator save also power, for the same motor power, the helical bevel mud agitator is with a big torque compared with worn gearbox. So a smaller power helical bevel mud agitator can reach the performance of a bigger power worn gearbox agitator.

There are 2 ways for the connections of motor and agitator gearbox.
The motor and gearbox can be connected by flange directly. It is with small footprint.
The motor and gearbox can also be connected by coupling, and fixed on the small skid. Clients can choose the suitable one per his job site situation.

Other accessories for drilling mud agitator:
1) Shaft: The shaft length of mud agitator should be customized per clients’ mud tank size.
2) Impeller: There are double layer and single layer impeller for mud agitators. The impeller size is also designed to suit for the tank depth and width for a better agitating performance.
3) Tank bottom stabilizer to fix the shaft. For mud tank depth over 1800mm. GN will recommend Tank bottom stabilizer to fix the shaft and avoid is swaying during rotating.

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Jan 13

Mud system will not work if there are no mud tanks. In the mud recycling system, the tanks are used to store the drilling mud to be a base where the solids control equipment to be installed. Normally, more than one mud tanks
will be used in the oil drilling mud system. For different purpose, the design of the mud tank is different, especially the inner structure of the mud tanks.
There are mainly 3 types of mud tanks recycling tank, intermediate tank and premixing tank. Then what are the different among these 3 types of mud tank?
The recycling tank is where to install the primary shakers and degasser unit, and also the de-sanding and de-silting unit. Each of equipment needs a compartment in the mud tank. As the recycled drilling mud is treated by the solids control equipment one by one. After treatment by each of the equipment, the drilling fluids will be cleaner than before. Thus the drilling fluids cannot be mixed. The wall between two compartments always has an overflow port for balance of the drilling mud in the tank.

Mud-Tank-for-ZJ-50

Mud Tank System

For the tank to install the de-sander and de-silter unit, inner structure of the mud tank would be much complex as there are pipes for centrifugal pump to such the drilling fluids from inside of the tank and transfer to the cyclone for further treatment. Operator has to know which pipe is for de-sander and which pipe is the desilter.
On the mud tanks for installing the solids control equipment on, there always have the walkways and handrails. The walkways provide enough space for the operator to walk around the equipment for operation and maintenance. Intermediate tank is a type buffering tank, part of this tank is for mud recycling, and other parts are used for mud storage. Operators can easily tell how many compartment in this tank.
The premixing tank is used to mix drilling fluids. It always is connected with the jet mixer unit. The mixing pumps suck liquid from mud tank and send liquid back again with added mud materials from the hopper. Thus the pump should be able to suck the drilling mud from anywhere in the mud tank used for mixing and storage.
Therefore, in the mixing tank, there are two groups of pipelines, one for sucking, and the other one is for sending liquid back. Mug agitators and mud guns are always installed on the mixing tank.
Though, the inner structure of the above tanks is different, the outer dimension and design are always the same for purpose of easy transportation and assembling.

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Jun 17

Mud Agitator is one of the solids control equipment that is mainly used to mix the drilling fluids in the mud tanks to keep the solids inside the drilling fluids suspending other than sedimentation down to the tank bottom.
GN’s sales team ever received many inquiries on the mud agitators; unfortunately, most of the clients have no idea on how to choose the right model for their project and even don’t know how to use the equipment properly to ensure a longer life time.

gn-mud-agitator

Drilling Mud Agitator

GN’s sales are good at understanding clients’ specific request by asking few simple questions. With the answer from the clients, GN always could give the best proposal for clients. Now let’s see what these questions are and what information GN need to give a proposal.
a. What is the inside dimension of the mud tank or pit. From this question, GN will know the inside length, width and depth of the mud tank, and then GN will know how long the agitator shaft should be suggested for clients and how big impeller should be used. For the deep mud tank or pit, the stabilizer will be provided to hold the agitator shaft for stable performance.
b. What is the shape of the mud tank, cylinder or rectangular? Then GN will know how to design the agitator.
c. What is the electric specification, mainly GN would like to know the jobsite electric voltage and frequency. Different countries may have different frequency, the 50 Hz motor cannot be used under 60 Hz, and safety is ever the first think we should keep in mind.
d. What is the S.G. of the liquid? For very thick liquid, GN will propose bigger horse power motor to drive the agitator.
Mud agitator is always installed in mixing tank with jet mixing unit, active mud reserve tank and trip tank. For some clients who get the mud agitators from GN and make the mud tank by themselves, GN always recommends them to make the mud tank with same dimension, thus they can get the agitator all same model, which would be much better for clients’ future maintenance. GN suggest the RPM setting of the mud agitator between 40-96, too high will disturb the solids suspending, while too low will lead to solids sedimentation.

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Jan 26

Last week, GN’s manufacturing department finished the fabrication of a mud mixing tank with double hoppers. Mud mixing tank is widely used in the drilling mud recycling system for mixing and re-configuration the drilling fluids. Also sometimes it will be used for storage the active drilling fluids.

mud-mixing-tank-with-double-hopper

mud mixing tank system

A mud mixing system is always consisting of mixing tank, agitators, mud guns, mixing pump and mud hoppers. Generally, the mixing pump and the mud hopper will be located at one end of the mud tank to make the mixing tank system a compact and single unit, while in some projects, the mixing pump and hopper are installed on a separate skid so that the mixing tank and the jet mud mixer could be used much freely. The picture in this article shows that the jet mud mixer skid was located at one side of the mixing tank. There are one mixing pump and 2 mud
hoppers on the skid. The mixing pump is connected with both hoppers, one of the hoppers is used for mixing barite to make weighted drilling fluids, and the other one is used for adding bentonite into the drilling fluids.
There is a steel frame around second hopper with steel bars over the hopper. This horizontal steel bar is used to hang the bentonite bag which will be hooked at 4 corners of the steel frame to make it easier for adding the bentonite powder into the hopper. It is worthy to mention that the steel bar is with forklift lifting slot so that the bar with bentonite bags could be lift and put on the frame by a forklift to save human power.
This mud mixing system is with a control panel to control mixing pump which could transfer mud to both hoppers. On the mixing tank, there is another charge pump which is used to transfer the active mud back to the rig for reuse.

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Nov 23

GN series mud gun for mud tanks

Mud Agitator, Mud gun, solids control, Solids Control Equipments
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Mud gun is definitely an essential part for going mud tanks, it generally works together with mud agitator/ dirt mixer. The 3 main features including:
(1) Mixing, prevent the shades from precipitate, the necessary operating pressure is provided by the blending pump or mud pump motor, sometimes it works together with mud whisk, for example , for mud combining tank, mud storage container; sometimes it works separately if you find no enough place to use a mud agitator.

image

(2) Transferring, the actual mud gun line was created inside the mud tanks as well as connect with each tank in order to transfer the drilling liquids, for example , it can work as an account balance pipe between 2 aquariums to keep the mud degree balanced.
(3) Cleaning: If linked to clear water pump, it may be used as mud container cleaning line after going is finished, so you do not need to purchase a separate jet water device, with the GN unique dirt tank bottom design( having a 5 degree slant), the actual deposits solids on the container bottom will be washed aside with sand washing slot, and the operator can use unique tools to take the fine sand away.

“Mud gun for mud tanks”的图片搜索结果
GN solids control mud gun is with three nozzles and can work with six. 4Mpa for oil and gas drilling, and one 0 Mpa for HARD DRIVE & CBM drilling. We now have 2 types mud weapon, one type is rotatable mud gun which can turn with 360°, the other kind is fixed. Also we offer 2 sizes, 2 ” diameter and 3 ” diameter. The mud weapon length is customized with assorted size mud tanks, we are going to ask the client to provide required information before order.
Usually GN mud gun is made from carbon steel, for unique requirement of brine water or even corrosive mud, we can offer stainless steel material for choice. Welcome to inquiry GN solids America for more info.

Related Posts

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Aug 23

In last article, we gave a brief introduction on how GN layouts the mud suction and mixing pipeline in the mud circulation system. On the mud tank, there are also other functional pipelines that would be designed and laid properly for complete the mud circulation system utility and enhance the working efficiency. Today we would like to gave a explanation on how GN engineer team design the mud gun pipeline and cleaner water line.

GN Drilling Mud Gun

GN Mud Gun with 3 Nozzles

What are the Functions of the mud gun line and clean water line

It is well known that in the mud tank, the mud agitator would be installed to agitating the drilling mud to prevent the solids particle sedimentation down to bottom of the mud tank, thus the drilling mud would be transferred or flow to next stage process as the suspension form. That would be benefit for subsequent equipment to work on the drilling mud. Mud agitator is high efficiency device. However, the mud agitator still can not get to the dead corner of the tank inner. For the issue, the solids control engineer always use the mud gun to solve the problem, the mud gun would be injected with drilling mud, high pressure mud out from the mud gun nipple would be jetted to the mud tank corner, by adjusting the angle of the mud gun, almost all the corner would be reached. During the mud recycling operation, the spraying mud would defile the equipment and lead to low efficiency. Moreover, the drilling mud would loss when separating. The mud engineer would have to add water into the mud tank to mix new drilling mud. The laying of the clean water pipeline would be necessary for these purpose, it should be very easy for the engineer to get the water.

How GN design the mud gun line and clean water line

GN’s mud tank are always rectangular, the top of the tank structure is applying the 4” tube steel. GN’s engineer would used this tube steel as the channel of the drilling mud and clean water. Only the seamless steel tube would be chosen in case of leakage of the liquid under high pressure. The mud gun line would be laid on every mud tank in the mud system so that the mud could be transferred to every mud tank compartment. Always, the mud gun line would occupy 1 length and 1 width of the tank top structure steel tube, between different tanks, the mud gun line would be connected by hose. To avoid confusion, the mud gun line would be laid at same side of the mud tank, while the clean water line is chosen as the counter sides.
The mud gun is installed inside the mud tank, thus the opening of the mud gun line would be inner the tank for easy connecting with mud gun terminals. While, the clean water line has several opening on mud tank top surface, the mud engineer would connect the water line by using a tap and control by a valve.

Regarding the power, the mud gun line is connecting with the mixing pump or high pressure mud tank. The clean water would be pumped into the water line with sufficient power. GN’s design on the mud gun line and clean water save cost on additional pipeline and effectively use the mud tank existing structure.

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May 30

There are hundreds of famous oil company  throughout the wide, government owned or non-government. Belong list is for some of the most famous oil companies.

1) ExxonMobil

ExxonMobil is the world’s largest non-governmental oil and gas producer and the world’s largest non-governmental natural gas distributor; and also is one of the world’s largest refiner, its 45 refineries distributing in 25 countries have oil refining capacity of 6400000 barrels per day. ExxonMobil owns over 37,000 gas station and 1 million industrial and wholesale customers in the world. Every year ExxonMobile sells about 28 million tons of petrochemical products to over 150 countries. The company for 85 consecutive years won the 3A credit rating. It is one of the few companies that keep this world record.

mud recycling system for oil and gas drilling

mud recycling system for oil and gas drilling

2) Royal Dutch Shell Plc (Short name”Shell”)

Royal Dutch Shell Plc (“Shell”) is with short name Shell. Shell is a global group of energy and petrochemicals companies with around 92,000 employees in more than 70 countries and territories. Shell is the share combination of Shell Transportation and Trade Co., Ltd. (UK) with Royal Dutch Oil Company shares which was found in 1907. Shell is the second largest oil company in the world
In year 2007, Shell has turnover around $318 billion, ranking third in the world.

3) Chevron Texaco

Chevron Texaco is the second largest American oil companies, business throughout 180 countries and regions in the world. In year 2007, Chevron Texaco has turnover around $200 billion, ranking seventh in the world.

4) ConocoPhillips

ConocoPhillips is the combination of Conoco, Phillips, Tusco and Williams etc.. It is the third large oil company in America.

5) BP

British Petroleum (BP) is a multinational oil company and it is the world’s fourth largest oil company. BP business is over 100 countries and regions in the world, covering oil and gas exploration and production, refining and marketing, petrochemicals, BP is also involved in finance, solar energy and other field. The company is headquartered in London, the current chairman David Simon (David Simon), General Manager John Brown (John Browne). BP is the world’s third-largest publicly traded oil company, and its shares are traded on the New York, London, Paris, Frankfurt, Zurich, Tokyo listing.

6) Total

TOTAL is one of the four largest petrochemical companies in the world. Its lubrication business is in more than 110 countries worldwide.TOTAL has headquartered in Paris, France, It is composed of 3 major brands: TOTAL, FINA and ELF.

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Apr 26

Low pressure / high pressure mud gun is used for mud tanks usually together with mud agitator. It is used as an assistant of mud agitator.

Drilling mud agitator usually mounted in the middle of the tank compartment to agitating mud and prevent it from settle down. But at corners of mud tank, agitator impeller cannot effect. In this case mud gun used.

high pressure low pressure mud gun

high pressure low pressure mud gun

Drilling fluids mud gun is mounted at the corner of tank. It has high pressure and low pressure for option. Some for international customer, sometime we will prefer 5000psi high pressure mud gun. It request a high standard of the seamless steel pipe feeding for the mud gun.

China supplier usually offer 1.6Mpa, 3.2Mpa and 6.4Mpa low pressure and high pressure mud gun. Parameters as below:

GN Mud Gun Technical Parameters

Model

GNNJQ50A-3G

GNNJQ50A-3X

GNNJQ80A-3G

GNNJQ80A-3X

Working Pressure

≤6.4 Mpa

Rotation Degree

360°

360°

Nozzle Qty

3

Gun Diameter

2 Inch

3 Inch

Connection Size

G2”

G2”

G3”

G3”

Applications of mud gun

Drilling fluids mud gun can be powered by centrifuge pump, mostly mixing pump, it is called low pressure mud gun. Dud gun in rig system can also be powered by mud gun with high pressure. Mostly, only high pressure or low pressure will be used in one system, but in some mud system, customer will prefer both high pressure and lower pressure.

Sizing and model selection of mud gun

The number of mud gun depends on the size of tank. Usually mud gun installed with mud line of mud tank. According the inlet pipe size, there are 2’ mud gun and 3’ mud gun for option. According to different structure feature, there are two types of mud gun: fixed mud gun , and rotary mud gun.

The mud gun in the mud system can also be used for transfer mud from compartment to compartment, like for trip tank compartment.GN Mud Guns are available for rotation adjustment to allow the operator to optimize the mud guns performance. The replaceable wear resistant jet nozzle is used, which is special design with better shearing.

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Jul 27

Drilling mud agitator for oilfield

Drilling equipments Company, Drilling mud system, Mud Agitator, Uncategorized
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GN JBQ series mud agitator is one of the important equipment for oil drilling mud system. It is mainly used for agitating drilling fluids / mud to avoid particle in fluids deposit to tank bottom.

GN brand mud agitator is high-efficiency mud-mixing units offered in a wide array of customized sizes and configurations to accommodate virtually mud tank. The horizontal driver is designed for installations having limited space above the mud tank.

Drilling mud agitator for oilfield

Drilling mud agitator design should be based on tank dimension, inner depth and mud condition. GN horizontal agitators utilize worm gear reducer.The impeller is fixed to the shaft with bolts to avoid rotating or sway (connection with key groove optional). Its vertical location on the shaft is determined as a height from the tank bottom corresponding to the impeller diameter times 0.75.

The keyed motor and driven impeller shafts are rigidly connected by a multi-piece coupling, which uses tapered locking bushings to secure the shafts together. Shaft lengths are customized to suit customer specifications. For shafts longer than 8’, a stabilizer is mounted on the tank bottom to support the lower end of the shaft.

Main parameters of GN brand drilling mud agitator for oilfield:

Model

JBQ5.5

JBQ7.5

JBQ11

JBQ15

Motor power

5.5kw(7.5hp)

7.5kw(10hp)

11kw(15hp)

15kw(20hp)

Impeller speed

60/72RPM

60/72RPM

60/72RPM

60/72RPM

Single-layer impeller, (Standard)

850mm

950mm

1050mm

1200

Double- layer impeller, (Standard)

N/A

Up:750mm

Down:650mm

Up:850mm

Down:700mm

Up:950mm

Down:750mm

Ration

25:1

25:1

25:1

25:1

Overall dimension

(L*W*H)

900*700*600mm

900*750*610mm

1100*840*705mm

1200*1000*760mm

Electric Specs

380V/50HZ Or 460V/60HZ, or customized

Shaft length and impeller

Customized shaft according to tank inner depth / mud condition optional

Remarks

Explosion-proof motor

Shaft stabilizer available

Customized impeller diameter available

For more details information on drilling mud agitator, visit GN website or contact GN group for solution.

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Apr 12

Solids control mud gun

Drilling equipments Company, Drilling mud system, Mud Agitator, Mud gun
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Applicaiton of mud gun:

Inside the tank, there are always some dead corner, where mud agitator cannot effect. In this case, mud gun will be used to flashing and agitating the dead corner to avoid fluid deposition. It usually used together with mud agitator.

Mud gun is also meant to provide supplemental or primary mixing in mud tanks. It depends on the number being used and the pit size. It is best used in tank corners to keep solids from settling and a mud agitator is placed in the tank center.Mud Gun 4

How to choose the suitable mud gun:

The number of solids control mud gun depends on the size of tank. Usually mud gun installed with mud line of mud tank. According the inlet pipe size, there are 2’ mud gun and 3’ mud gun for option. According to different structure feature, there are two types of mud gun: fixed mud gun and rotary mud gun.

Design features of solids control mud gun:

A molded replaceable wear resistant polyurethane jet nozzle is used, with lift time as long as 2000 hour.

Three nozzle with 120° between each other. All tank corner can be covered by mud gun, even for fixed mud gun.

Locating the mud gun for mud recycling system:

·GN recommend to set a mud gun at every tank length simiar to tank width. Mud gun located on the middle of this length.

·Solids control mud gun inlet centerline aligh to mud tank central mud line.

The centerline of the nozzle is to be located about 6” off the tank bottom.

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