Working Principle of Shale Shaker (I)

One of the most important solids control equipment- Linear motion shale shaker

Shale shaker is the most important cleaning equipment in the solids control system. As the first stage of drilling fluid cleaning, the function of shale shaker is to remove the solids size bigger than 70 micron meters which return from wellhead and keep the solids do not break. So that the next stage of cleaning equipment can further purity the drilling fluid. The shale shaker's working performance directly affecting the quality of first stage cleaning of drilling fluid, and also influenced the next purify stage.

Working principle and function:  The shale shaker is mainly composed of a screen frame, a screen mesh exciter and anti-vibration elements. By the vibration force  and through screen mesh hole to separate bigger solids out and by the adsorption force to separate solids size smaller than screen mesh hole. The drilling fluid coming back from wellhead to screen by feeding channel. The solids was discharged from the tail of the screen, and liquid with smaller size solids is poured into the drilling fluid system. Then finish the separation.

Now, the using shale shakers in the drilling site are all have the same working principles. That is, the eccentric shaft is driven by the motor to rotate at high speed, when eccentric shaft rotates, there is a strong centrifugal force which acts on the elastic vibrator. Thus make the shaker screens vibrate at a higher frequency.

Details will be continue on next blog.

Contact: alisa@jxsolidscontrol.com
Website: www.jxsolidscontrol.com

Offshore Drilling--The Solids Control System's Flow Process(II)

Today we continue yesterday's pipelines in solids control systems.

6). Drilling pipe lines: Access from drilling platform's drilling water tank and access to each cabin. In the drilling process, it is used for configuring the drilling mud or flush the mud tank.

7). The oil base line: Use the base oil pump to extract the base oil from the base oil tank and transfer it to each cabin. In the drilling process, when using the oil base mud, the oil base line need modulate the oil base drilling mud.

8). Medium pressure drilling gun pipe line: Through the drilling mud, the drilling mud was increased pressure. Then across the fluid gun pipe to transport to medium pressure drilling mud hydraulic gun. The hydraulic gun's function is cleaning the sediment on the mud tank and mixer the drilling fluid. This years, each mud agitators contain bottom impellers, so almost cancel the hydraulic gun.

9).  Tank bottom connection pipe line: the function of tank bottom connection pipeline is to connect every two adjacent cabins. There are two connection types. One is straight connection pipes and the other is balanced liquid pipeline.

10).  Shearing pump's suction and discharge pipeline: Polymer drilling fluid through shearing pump to shearing hoppers. After configured from shearing hopper to transport to different function solids control tanks. This pipeline is chosen one, in the offshore drilling, usually do not contain this parts.

11). Feeding pipe line: When drilling, the feeding pump pours the drilling fluid in the well to balance the earth formation pressure.

12).  Tank bottom discharge pipeline: At the bottom of each cabin, there is a discharge port. This discharge port connected with discharge pipe to collection the waste.  In the tank bottom discharge pipe line, there is water cleaning pipes to cleaning the pipe.

The pipeline parts are finished, if you have any suggestion, welcome to contact with me. We manufacture and design solids control system for you!

Email: alisa@jxsolidscontrol.com
Website: www.jxsolidscontrol.com

Offshore Drilling--The Solids Control System's Flow Process(I)

Today we continue the solids control system detail description.
The solids control system's flow process

Drilling fluid solids control system's complete preparation and transportation is through different pipelines.

1). Elevated pipeline: The elevated pipeline take the drilling fluid from wellhead and transported to circulation tanks for the first grade cleaning equipment. Usually, the parameter of return pipe is no less than 12", and the return pipe used more than 5000 meters' drilling rig is no less than 14".  Becasue in the first opening process, the drilling fluid contain bigger mud cake, in order to no block the pipe line, the return pipe need slope at least 3 degree. If we choose round pipe as return pipe, it need contain a winder for cleaning the sediment solids. There is also a flow meter on the return pipe to measure the total volume of drilling fluid and the flow speed.

2). Drilling pump suction pipeline: connect with the moving tank, and the drilling mud suction line enters into the drilling pump. Usually, the drilling pump's suction pipe line contains drilling pumps self suction line and the feeding pump's feeding pipe line. But it is also can be chosen one type. In the suction pipe line, it needs design drilling mud filtration screen to remove the bigger solids and other impurities in the drilling mud. The suction pipe line's suction month in the each cabin keep 200 to 300 meters height.

3). Pressure relief line of drilling pump:This pipeline is drilling pump safe valves discharge pipe. The discharge pipe line is connected with the nearest drilling mud cabin, so minimize the pipe bend, its easy discharge the fluid.

4). The mixed pump's suction and discharge pipeline: The drilling fluid in the mud tank is sucked into the mixed pump, and then into the mixed hopper, in the mixed hopper, it is added chemical and then transported into different solids control tanks. In the offshore drilling, usually design two different feeding fluid pipe lines. One pipe line used in drilling rig's grey system, through buffer tank to adding chemicals. The other used in drilling process to feeding fluid of bulk pack.

5). Seawater pipe line: Access from the seawater piping of the platform to each cabin involved in the preparation of the slurry. In the drilling process, it is used in the allocation of drilling mud.

Others will be continue tomorrow.

Contact: alisa@jxsolidscontrol.com
Website: www.jxsolidscontrol.com

The Purification Process of Drilling Fluid in the System

The Purification Process of Drilling Fluid in the System
1) Primary Purification
    Primary purification is the drilling fluid treatment through Shale shaker. The configured drilling fluid was taken into bottom of drilling well, then turn back to the ground with drilling cuttings. Through the drilling pumps then come into the shale shaker. The shale shaker separate the bigger solids out from the drilling fluid.

2). The secondary purification
     When the drilling fluid was soaked in gas, using the Vacuum degasser can remove the gas in the drilling fluid. So thus can recover the drilling fluid density, stable drilling fluid viscosity.

3). Tertiary purification
     After the secondary purification, the drilling fluid enters the Desander by the power of centrifugal pump. Through the desander's hydrocyclones, the solids size bigger than 40-60 micron meters were separated out.

4). The level fourth purification
     After the tertiary purification, the drilling fluid enters the Desilter by centrifugal pump. Through the desilter's hydrocyclones, the solids size bigger than 15-40 micron meters were separated out.

5). The fifth level purification
     The drilling fluid after the fourth level come into the Decanter Centrifuge by the power of Screw pump. The decanter centrifuge can separate the solids size 5-15 micron meters out.

Completer Photos:

     
Origin: Hebei JinXin Machinery Co., Ltd

Email: alisa@jxsolidscontrol.com

The design requirement of solids control equipment

In the solids control system design, there are some requirements:

For mud tanks, the effective volume is at least 75% of dimension size.

1). The mud tank should carry capacity of biggest drilling fluid circulation capacity in the drilling process.

2). The mud tank's overall strength should meet the requirement of lifting, transport and density is 2.5 g/ cm3 drilling mud.

3). In the mud tank, between each tank should have connection pipes which contain valves, and upper the mud tank should have overflow mouth.

4). Each cabins should have sand cleaning gates, the gates' down side should on the same level of tank bottom or lower than tank bottom.

5). All the seal parts should resistant to oil, acid, and H2S.

According to SY/T6223-2005, the equipment's choosen as following,

1). Shale shaker's treating capacity should be 100% to 125% of drilling pump's max. flow rate.

2). Degasser: The treating capacity should be 100%-125% of drilling pump's max. flow rate.

3). Desander and Desilter: The treating capacity should be 100% to 125% of drilling pump's max. 
flow rate. And the match Centrifugal pump and motors should meet this capacity requirement.

4). Decanter centrifuge: The capacity of centrifuge usually be 5%-10% of drilling pump's max flow rate.

Welcome to contact Hebei JinXin Machinery Co., Ltd!

Solids Control System's Composition Equipment (II)

Now we continue yesterday's solids control system's composition equipment. To make sure the drilling fluid's good performance, different drilling rigs has different solids control equipment. According to SY/T6223-2005 "Use and Maintenance of Drilling Fluid Cleaning Device", the 4000-7000 meters' drilling rig solids control equipment is as below:

2). 

5000 meters' solids control equipment paramete
No.	Equipment Name	Parameters	Qty.
1	Mud Tank	Total effective volume is no les than 200 m3, the storage tank volume is more than 120 m3	1 Suit
2	Shale shaker	Treating capacity is no less than 181.5 m3/h	2 Sets
3	Desander	Treating capacity is no less than 181.5 m3/h	1 Set
4	Desilter	Treating capacity is no less than 181.5 m3/h	1 Set
5	Mixing Devices	Sand pump's flow rate:200m3/h, head: 36m	1 Suit
6	Shearing pump	Shearing pump's flow rate:155m3/h, head 32m	1 Set
7	Grouting pump	Flow rate: 50m3/h, head 28m	1 Set
8	Degasser	Treating capacity is no less than 181.5 m3/h	1 Set
9	Middle speed  centrifuge	Treating capacity: 40 m3/h. separation size: 5-7μm	1 Set
10	High speed Centrifuge	Treating capacity: 40 m3/h. separation size:3-5μm

3). 

7000 meters' solids control equipment paramete
No.	Equipment Name	Parameters	Qty.
1	Mud Tank	Total effective volume is no les than 270 m3, the storage tank volume is more than 160 m3	1 Suit
2	Shale shaker	Treating capacity is no less than 181.5 m3/h	2 Sets
3	Desander	Treating capacity is no less than 181.5 m3/h	1 Set
4	Desilter	Treating capacity is no less than 181.5 m3/h	1 Set
5	Degasser	Treating capacity is no less than 181.5 m3/h	1 Set
6	Middle speed  centrifuge	Treating capacity: 40 m3/h. separation size: 5-7μm	1 Set
7	High speed Centrifuge	Treating capacity: 40 m3/h. separation size:3-5μm
8	Mixing Devices	Sand pump's flow rate:200m3/h, head: 36m	2 Suit
9	Shearing pump	Shearing pump's flow rate:155m3/h, head 32m	1 Set
10	Grouting pump	Flow rate: 50m3/h, head 28m	1 Set

In the design requirement of solids control equipment, the mud tank's effective volume is the 75% of mud tank's outside size. 

Tag: Mud Tank, Solids Control Equipment, JinXin Machinery, Hebei JinXin Machinery Co.,Ltd

Solids Control System's Composition Equipment (I)

Solids Control System's Composition Equipment

Solids control system is used to store, configure, circulate and purify drilling fluid . 

Generally, its composition is Drilling fluid tank, Shale shaker, Degasser, Desander, Desilter, Centrifuge etc necessary five grade cleaning equipment. And also including overhead line (from drilling well to shale shaker), drilling pump's pumping line, mixing pimp's line, mud tank bottom connection line, feeding line, discharging line,  drilling line, shearing pump's suction and discharge line etc. 

The solids control system also equipped with drilling fluid replenishment system, chemical adding hopper, pumps, agitators, lights etc accessory equipment. In addition, the system also has passage, ladders, guard rail to make sure workers' safe.  The solids control system can remove the solids bigger than 5-15 micron meters effectively, and then keep useful solids, to provide good performance drilling fluid for the whole drilling progress.

To make sure the drilling fluid's good performance, different drilling rigs has different solids control equipment. According to SY/T6223-2005 "Use and Maintenance of Drilling Fluid Cleaning Device", the 4000-7000 meters' drilling rig solids control equipment is as below:

1) 

4000 meters' solids control equipment paramete
No.	Equipment Name	Parameters	Qty.
1	Mud Tank	Total effective volume is more than 180 m3, the storage tank volume is more than 80 mthe storage tank volume is more than 80 m3	1 Suit
2	Shale shaker	Treating capacity is no less than 181.5 m3/h	2 Sets
3	Desander	Treating capacity is no less than 181.5 m3/h	1 Set
4	Desilter	Treating capacity is no less than 181.5 m3/h	1 Set
5	Mixing Devices	Sand pump's flow rate:200m3/h, head: 36m	1 Suit
6	Shearing pump	Shearing pump's flow rate:155m3/h, head 32m	1 Set
7	Grouting pump	Flow rate: 50m3/h, head 28m	1 Set
8	Degasser	Treating capacity is no less than 181.5 m3/h	1 Set
9	Middle speed centrifuge	Treating capacity: 40 m3/h. separation size: 5-7μm	1 Set

In next blogger will continue the 5000 meters, 7000 meters' equipment details.

Thanks for your kindly support, welcome to contact with us have discussion.

Email: alisazhao@foxmail.com

Why drilling mud is very important?

Do you know why drilling mud is very important?

With development of drilling technology, the drilling mud's performance index is an important sign of scientific drilling.  The drilling mud is the blood of drilling progress. 

The function of drilling mud is: 
1). Remove and float the drilling cuttings at the bottom of the well and bring it to the ground for settlement.  
2). Cool the drill bits and drilling tools. 
3). Form a low permeability mud cake and cover the well wall. 
4). Control the surface earth pressure. 
5). Bear parts weight of drilling pipes. 
6). Protect the drilling hole and supply downhole materials. 
7).  Reduce the reservoir loss. 
8). Transfer the water power to drill bits. 
9). Prevent drill tool corrosion etc.

The solids control system is according to physics method to remove the harmful solids in the drilling fluid and then adjust the each performance in the drilling fluid the storage drilling fluid. The reasonable equipped with solid control equipment is the most important in increasing drilling speed, protecting oil and gas cover, adjusting drilling fluid performance and reducing the drilling cost.

Hebei JinXin Machinery Co., Ltd focus in drilling mud solids control equipment. The reasonable equipment supply and design for you!

TAG: Shale Shaker, Mud Cleaner, Desander, Desilter, Mud Tank, Vacuum Degasser, Mud Gas Separator, Flare Ignition Devices etc.

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