Tag Archives: Solid Control

Batch of solid control equipment spare parts had finished the production and prepare to packed up for shipping Bulgaria by Air. DC Solid control has 1 sets solid control system used in Bulgaria drilling field for about 2 years. And runing well of all equipment, so the clients want to oerder more spare parts to replaced the old ones.

parts

The spare parts mainly have butterfly valves, centrifugal sapre parts, shale shaker spare parts and decanter centrifuge spare parts. Please reference the below pictures.

DC Solid control is a company focuses on solids control systems‘ production, sales and after-sales maintenance service. We have professional works to assit filed instalation and commissioning. DC Solids Control systems include all kinds of mud cleaning equipments with high quality, such as mud shale shaker, mud cleaner, mud centrifuge, mud agitator, etc.

spare parts

The most business of DC Machinery is the overseas. Meanwhile, DC Machinery solid control system can also used in HDD, CBM, and water well drilling. If you have dirt mud can’t process, please contact us, you will get the cost solutions.

 

 

Our country solid control manufactures are mainly produce the hydrocyclone, the desander and desilter. The quality index of hydrocyclone is abrasive resistance, the performance of hydrocyclone is the separation granularity, the D50, the D50 is lower, the separation effect is good. In the desander and desilter device, we must attention the range of separation particles, it must has a certain distance and a certain overlap. According the classification standard and the separation granularity of the hydrocyclone, the inner diameter of column volute is Φ150—300mm, the separation granularity is 74—44μm hydrocyclone is all the drilling fluid desander; The inner diameter of column volute isΦ100—150, the separation granularity is 44—15μm hydrocyclone is all the desilter. But some matching desander and desilter which the separation granularity are very similar, thedrilling fluid is processed by the drilling fluid desander, then it is processed by desilter, leading to the desilter don’t have the function of removing solid phase particles.

The main reason is that the manufacture level of domestic hydrocyclone can’t reach the requirements, the effect also can’t reach the requirements of drilling technology. So many user choose two sets drilling fluid desander instead of a set of drilling fluid desilter, the matching scheme of the desilter. Some users simply install the second desander in the place which installation the desilter, the process flow is can’t be changed. This is wrong.

The performance parameter of the two drilling fluid desander are the same, we should use the parallel process, it can be as the spare and increase the drilling fluid throughput in the high speed rotation. But to the high performance of drilling fluid well, the reasonable scheme is setting a desilter and a desnader, using the tandem technology process. But when we choose the desilter and desander, we should choose the different separation size equipments. Such as the separation size is 40—60μm of the desander, the separation size of desilter is 15-45um, it can achieve a good treatment effect.

Drilling fluid solid phase control is mainly remove the harmful solid phase and save the useful solid phase, also can control the gross of solid phase in drilling and the grain size distribution in the reasonable ranges, the drilling technology can meet the requirements of the performance of drilling fluid. Usually drilling fluid solid phase control is short for solid control and mud purification system.

The classify and size distribution of solid phase

According the difference characteristics, there are different classification methods.

1 According the different effects of solid phase in drilling fluid: useful solid phase and harmful solid phase.

2 According the density of solid phase: the high density solid phase and the low density solid phase. The high density solid phase is according the requirements of drilling fluid technology add the aggravate materials to improve the density of drilling fluid, the low density solid phase include the bentonite and treating agent of the need of configuration drilling fluid and rock debris.

3 According the reaction of the solid phase and liquid phase: activity solid phase and inertia solid phase. The solid phase and liquid phase is react is called activity solid phase, solid phase and liquid phase don’t react is called inertia solid phase. The activity solid phase is bentonite, shale, clay and ect. The liquid phase are limestone, granite and barite ect.

In the drilling, because the type and drilling parametric of lithology drill head is different, so the content of solid phase and the grain size distribution is different.

The common solid control method are

Irrigation method, replace method, natural sedimentation, chemical sedimentation and mechanical  eliminate.

Drilling fluid gun belongs to the water conservancy agitator equipment, its function is rely on high speed fluid which is produced from the gun nozzle, impacting the solid phase which in drilling fluid bottom storage tank and keep it suspension. After the agitator stop a period of time, the depositional solid phase bury the impellers, it is needed to restart, drilling fluid gun can eliminate a part of resistance distance when the agitator start, it can provide the reasonable guarantee for regular work of agiatator.

The mud agitator is composed by explosion-proof electric machine, reducer,engine base and impeller components. The electric machine ,reducer and impeller shaft are connected with each other by solid couplings. 4 leaf blades were welded on each impeller.

Operarting Principles: The impeller can stengthen the stirring effect by making vortex of the drilling fluid. The tray installed between the leaf blades can prevent the deposition of the solid particles when the machine stopped, thereby, to reduce the moment of resistance inflicted by the sediment to the impellers when restart the equipment, therefore, to avoid burnout of the machine.

   

The structure of drilling fluid gun

According the structure of drilling fluid gun, it is divided into stationary type and rotation type.

1 The stationary type drilling fluid gun is similar with water conservancy agitator which the tank has nozzles, but the drilling fluid gun is installed on the two diagonal which is from 200meter to the bottom tank, the nozzle direction is parallel the longitudinal tank wall of circulation tank.

2 The rotation type drilling fluid gun is divided into hand regulation and autorotation. The hand regulation agitator has two hinges, it is made of access tubes, shell, spray gun and the replaceable nozzle

The differences

1 The cost of drilling fluid gun is lower than mechanical agitator.

2 In the premise of meet the requirements of pump power can use the drilling pumps.

3 The flow can concentrate in a location to decrease or eliminate the dead zone.

4 The weight is lighter than mechanical agitator.

5 It can improve the rate of shearing.

Shortcomings

1 If use along the drilling fluid system stir, it need a lot of drilling fluid guns, the cost of pumps and pipes is big.

3 The nozzle is abraded and let to high speed flow, it needs greater power, if the nozzle is not replaced in time, it may led to motor overload.

4 If solid phase have already precipitate, drilling fluid gun directly shot to the sediment, the sediment is maybe blocking the pump, conical shield or centrifugal.

The spray gun with the nozzles, rely on the two hinges, it can spurt any direction in the two perpendicular planes inside. The automatic rotary drilling fluid gun is made of input pipes, body gun, cross fitting, the two bends with nipples, replacement nozzle and two coat nots.

 The use of drilling fluid gun has a certain limitation, drilling fluid gun is auxiliary tool of mechanical mixing plant device, the mud gun can dispose the solid phase suspension which is didn’t disposed by mechanical agitator. According the research date, the depth of useful effect is only 1.5-2.7m, it is related with the drilling fluid density, viscosity and the speed nozzle.

 

The importance of the screen

The combination property of the drilling fluid shale shaker reflect the sieve size is fine, using life is long and the throughput is big, this conditions are related to the structure and performance of the screen. The screen is a important part of screening task, it is the consumables in drilling fluid, the size of the hole determines the size of the solid phase particles are removed by the shale shaker. Because drilling fluid have corrosive, abrasive resistance and the high temperature,

The specification of the screen

The specification of the screen determines the sieve size, the sieve size is the size of the sieve pore which the particles can pass. Because the oilfield and the related industries learn from the foreign stander, so use the mesh representative the size of the sieve pores, it is said that the number of the sieve pores in one inch width.

For different drilling mud equipments manufacturer will hold their own model

In order to remove the smaller particles in drilling fluid, the material of the screen is the stainless steel wires of the heat treatment, the material of the ancillary shoring structure is steel plate, galvanized sheet, plastic board and ect.

shale shakers. Different type shale shaker will hold different features and superiority.

To develop both precise and accurate process control, DC conducted a battery of tests. These tests included; cure tests by varying time and temperature; bonding strength tests by testing the tensile strength of the cure screens through destructive testing; and chemical exposure tests by immersing a series of screens in chemicals characteristic of the oil & gas industry.

 

The liner motion shale shaker have the performance of the high screening precision, simple structure, less energy consumption, low cost, low noise, the using life of the screen is long, good sealing and convenient to maintain. The product is widely used chemical, food, plastic, medical, metallurgy, glass, fire-resistance, grain, fertilizer, ceramic ect. industry,

SHALE SHAKER PARAMETERS

TYPE DCS585-3/4 DCS630-3 DCS700-3/4 DCS830-2/3
Shake Locus linear type or ellipse type
Motor Power 2×1.5/1.72KW 2×1.5KW 2×1.5/1.72KW 2×1.3/1.72KW
Shake Strength ≤7.0G
Amplitude 5~6mm
Thruput Per Screen 100/130 m3/h 440/572GPM 120 m3/h 528GPM 110/130 m3/h 440/572GPM 80/130 m3/h 352/528GPM
Angle Of Screen -1°~5°
Motor frequency and voltage 380V/50HZ(Foreign custom motor according to customer requirements)
Screen Area 2/2.73 m2 2.36m2 2.2/2.94m2 1.8/2.7m2
Screen Specification 585×1165mm (40~250) 630×1250mm (40~250) 700×1050mm (40~250) 830×1080mm (40~250)
Remarks The proportion of thruput per screen in the total amount is:1.2g/cm3,the viscosity is:45s

     

Shale shaker is the first phase cleaning equipment in a complete solids control system. Shale shaker is mainly used to remove the drilling cuttings return to the ground from wellhead, so as to meet the basic requirements of the next equipment in the oil drilling.

Features of all  model DCS Linear Motion Shale Shakers

     *Explosion and Non-explosion proof electrical

*systems for 50 or 60 hz.

*Deck angle adjustable during operation from –2 ½ to +5 degrees.

*Pretensioned screens with wedge fastening (optional hook strap)

*High G-Force of 2 – 8.5 G provides dry solids discharge.

*Simple design without a gear box, hydraulics, pneumatics, oiling system or belts.

*Unique feeder assembly that presents fluid to the scalping screens as a uniform, low-           impact curtain. Feeder easily can be configured into a variety of connection points for installations with limited space.

*Customized Shaker Dimensions, including size of possum belly, weir height and   overall shaker width, length and height are available.

*Fluid distribution designed to utilize all available screen area, regardless of drilling conditions

*Available in common power supply configurations to meet all applicable global electrical standards

 

Exhibition is the best purchase, sales and propaganda platform of a company, a manufacturer.

On September 17, 2012, Tangshan Dachuan Machinery co.,ltd. Took part in the offshore, oil and gas technology, equipment exhibition of Dong ying. There were a lot of companies in the exhibition, for example, Shengli oil field petroleum equipment co.,ltd. Rong li petro leum machinery and Jin sheng yuan solid control company and so on . The bigger exhibition hall is Jin sheng yuan solid control company. There is a shale shaker, a mud cleaner and several hydrocyclones in the exhibition hall.

   

The salesman of the company and I talked about one hour, I understood the main marketings and the sales model of the company, I studied the sales methods and the keys with the excellent salesman, and exchanged the sales experiences and realized.

Because the time is short, so our company can’t order the exhibition hall, but according our studies and observation, we got a lot of valuable knowledge and experiences, and meet a lot of foreign friends, there are Mark joony, Duanie A. priestley and Allen B.Kilback and so on.

  

DuanieA.Prestley was very interested with our centrifugal, and detailed understand the centrifugal of DC manufacturer with the technical engineer, he hoped establish business relations with us. And we leave the contact information each other.

Form the exhibition, I learned that the main of sales are daring to open, and I hope according about 6 months to exercise, the next time,  Beijing exhibition, my sales model and the spoken language are improve.

The mud agitator is composed by explosion-proof electric machine, reducer,engine base and impeller components. The electric machine ,reducer and impeller shaft are connected with each other by solid couplings. 4 leaf blades were welded on each impeller.

Drilling fluid gun belongs to the water conservancy agitator equipment, its function is rely on high speed fluid which is produced from the gun nozzle, impacting the solid phase which in drilling fluid bottom storage tank and keep it suspension. After the agitator stop a period of time, the depositional solid phase bury the impellers, it is needed to restart, drilling fluid gun can eliminate a part of resistance distance when the agitator start, it can provide the reasonable guarantee for regular work of agiatator.

Operarting Principles: The impeller can stengthen the stirring effect by making vortex of the drilling fluid. The tray installed between the leaf blades can prevent the deposition of the solid particles when the machine stopped, thereby, to reduce the moment of resistance inflicted by the sediment to the impellers when restart the equipment, therefore, to avoid burnout of the machine.

   

The structure of drilling fluid gun

According the structure of drilling fluid gun, it is divided into stationary type and rotation type.

1 The stationary type drilling fluid gun is similar with water conservancy agitator which the tank has nozzles, but the drilling fluid gun is installed on the two diagonal which is from 200meter to the bottom tank, the nozzle direction is parallel the longitudinal tank wall of circulation tank.

2 The rotation type drilling fluid gun is divided into hand regulation and autorotation. The hand regulation agitator has two hinges, it is made of access tubes, shell, spray gun and the replaceable nozzle

The spray gun with the nozzles, rely on the two hinges, it can spurt any direction in the two perpendicular planes inside. The automatic rotary drilling fluid gun is made of input pipes, body gun, cross fitting, the two bends with nipples, replacement nozzle and two coat nots.

 The use of drilling fluid gun has a certain limitation, drilling fluid gun is auxiliary tool of mechanical mixing plant device, the mud gun can dispose the solid phase suspension which is didn’t disposed by mechanical agitator. According the research date, the depth of useful effect is only 1.5-2.7m, it is related with the drilling fluid density, viscosity and the speed nozzle.

Advantages

1 The cost of drilling fluid gun is lower than mechanical agitator.

2 In the premise of meet the requirements of pump power can use the drilling pumps.

3 The flow can concentrate in a location to decrease or eliminate the dead zone.

4 The weight is lighter than mechanical agitator.

5 It can improve the rate of shearing.

Shortcomings

1 If use along the drilling fluid system stir, it need a lot of drilling fluid guns, the cost of pumps and pipes is big.

3 The nozzle is abraded and let to high speed flow, it needs greater power, if the nozzle is not replaced in time, it may led to motor overload.

4 If solid phase have already precipitate, drilling fluid gun directly shot to the sediment, the sediment is maybe blocking the pump, conical shield or centrifugal.

To my surprise, on the morning September 3, I went to work, I have no attention to open my email, I found a inquiry email from Italy solid control company, he said they saw our products on alibaba, they were very interesting with our company, they want the inquiry with shale shaker, I excited to shout” I have inquiry”, this is the first inquiry from my work within the three month. I had very excited, after I send a price list to him, of course this is my first order, so the price is lower compared with the same industry of other companies, the client was satisfied with my inquiry, then he sent a detailed content with shale shaker, the main content is; they want a shale shaker mating with 3000 meters well, let us gave a suggestion for him, then the detailed content was sent to our technology engineer, the engineer patient and careful design, at last fished a reasonable and reliable scheme. On September 5, we sent the scheme to the Italy client, the client thought that there are some parts were didn’t matching the link way and terrain. Then we received the need and improved the scheme, at last the client was very satisfied with our service and scheme. He hope we can established business relations each other, we also hope we can have business communication.

This order is succeed, it give me confidence and patience, I believe that efforts will be fruitful.

Now, we have already manufacture the shale shakers, this is the process of manufacture which I took the pictures in the manufacturing shop.

         

TangShan Dachuan Mechanical Equipment Co., Ltd. is a company focuses on the production, sales and after-sales maintenance service of mud cleaning  equipment of petroleum drilling (not excavation). The main products are mud vibrating screen, vacuum degasser, desander, disilter, mud cleaner, mud gas seperator, mud agitator, desander pump, shear pump, centrifugal, flare lgnition device, mix funnel, jet mud mixer, mud tank, water tank, diesel tank, etc.


 


  

Mud gas separator is a special equipment of gas cut drilling fluid, it belongs to the ordinary pressure, it is the degassing theory of ordinary pressure, but it is the primary degassing equipment of disposed the gas cutting drilling fluid, the main distinguish with vacuum degasser is; it can remove the big bubbles which the diameter is bigger than 3mm. The big bubbles are refers to the swelling gas of the most drilling fluid is full of the well, their diameter are about 3-25mm.  This big bubbles can cause well kick, even erupt the surface of turntable. The gas liquid separator is mainly depend on the effect of gravity collision to realize the liquid and gas separate, the vacuum degasser use the principle of vacuum, flocculated flow and centrifuge, the quality of processing gas of vacuum degasser is less than the liquid gas separator, but it remove the gas more thoroughly. Usually the gas is processed by the liquid gas separator also have small bubbles, after through the shale shaker, it needs enter into the vacuum degasser to conventional gas.

        

The types of liquid gas separator

1 Cover type

The bottom of vacuum degasser is closed, drilling fluid through a U type pipes to return the circulation tank. The depth of drilling fluid in the degassing tank, it can control by the depth of the U type pipes.

2 Open bottom type

The separator have not bottom, the lower parts dive into the drilling fluid, the liquid level in the tank depends on the drive depth of bottom to control, this type of separator is called the “poor children” in foreign, it explains the simplification.

ZYQ Mud Gas Separator Parameters

TYPE ZYQ800 ZYQ1000 ZYQ1200
Separator Main Body 800mm 1000mm 1200mm
Thruput 200~260m3/h 240~300m3/h 280~360m3/h
Inlet Pipe 5″ 5″ 5″
Outlet Pipe 8″ 8″ 10″
Exhaust Pipe 8″ 8″ 8″
Weight 1600kg 2100kg 2800kg
Overall Dimension 1900×1900×5700mm 2000×2000×5860mm 2200×2200×6634mm

The most simple and reasonable liquid gas separator is the cover types. The open bottom types is take second place, because the depth of drilling fluid is limited to the liquid level depth in circulation tank. The working pressure of liquid gas separator is equal to the frictional drag of when the free gas discharge tubes discharge.