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Drilling Fluids 3 Stage Solids Control Separation Equipment

First  stage solids  control  equipment– shale  shaker

The  shale  shaker  is  the  first  stage  of solids  control  equipment  in  drilling  purifi-cation  system.  It  can  remove  cuttings above 75μm brought  from  the  drilling  well to  leave  the  liquid  with  smaller  particles into  the  tanks  below,  which  will  flow  into next  grade  solids  control  equipment  to  be treated.

Shale Shaker
Shale Shaker

KOSUN  linear  motion  shale shaker  is  especially effective  while  drilling  top-hole  sections where  heavy  and  high-volume  solids  are usually  encountered.  In  these  intervals, shakers  may  generate  powerful  G-forces and  its  effective  vibrating  motion  can quickly  remove  the  dense  solids  from screens  and  particles  from  wells.

Secend  stage solids  control  equipment– Desander

In the 2nd stage of solids control for drilling fluids, desander makes separations between 45 and 75 μm.

Desander
Desander

Characteristics of desander by Kosun:1. Polyurethane ( PU ) material or high-chromium cast iron to make desander cones for longer lifespan. 2. Clamp type for easy maintenance.3. Compact design with small footprint.  4. Flexible options for 1, 2 or 3 pieces of 10″ or 12″ cones for different capacities. 5. Flexible fast connection are available for user assembly.

Third stage solids  control  equipment– Desilter

In the 3rd stage of solids control for drilling mud, the desilter by Kosun makes separations between 15 and 45 μm.

Desilter
Desilter

Characteristics of desilter by Kosun: 1. 100% Polyurethane ( PU ) material to make desilter cones for longer lifespan. 2. Clamp type for easy maintenance. 3. Compact design with small footprint. 4. Flexible options for 8, 10, 12, 16 or 20 pieces of 4″ or 5″ cones for different capacities. 5. Flexible fast connection is available for user assembly.

For more information about solids control,please contact us!(Editor:Kosun Lily.Wang)

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Email: sales2@adkosun.com

Contact person: Lily Wang

Online consulting:

http://www.kosun.com

http://www.kosuneco.com

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Double Deck Drilling Fluids Shale Shaker

Do you know the Double Deck Drilling Fluids Shale Shaker ? Now Let’s talk the avantages and disadvantage of it.

drilling fluids shale shaker
drilling fluids shale shaker

Advantages of Double Deck Drilling Fluids Shale Shaker:

  1. For the same API size and the same area bottom shale shaker screen,double deck shale shaker can treat a bigger capacity. The wide-meshed shaker screen on top deck can separate most big size solids before the mud enter into the bottom deck. It greatly reduce the load of bottom shale shaker screen.
  2. For the same API size and the same screen area shaker screen,double deck shale shaker can separate the drilling mud or drilling cuttings more dryer. As there are 2 times shale shaker separation.

Disadvantages of Double Deck Drilling Fluids Shale Shaker:

The double deck shale shaker have advantages of bigger advantage and dryer separation result, but it has some difficult to change shale shaker screen. And the cost of replacement shaker screen also higher, as there are 5 each shaker screen for a shale shaker.

Shale Shaker
Shale Shaker

Shale shaker for solids control are devices that remove drill cuttings from the drilling fluid while circulating and drilling. There are many different designs and research into the best design is constantly ongoing since solids control is vital in keeping down costs associated with the drilling fluid. The basic design consists of large, flat sheets of wire mesh screens or sieves of various mesh sizes that shakes or vibrates the drill cuttings, commonly shale shaker, across and off of the screens as the drilling fluid flows through them and back into the drilling fluids processing system, often called a mud system. This separates the drill cuttings, often called solids, from the drilling fluid so that it can be recirculated back down the well bore.

In oilfield industry, linear motion shale shaker are widely used for drilling mud solids control of oil gas well drilling for rig.

Kosun- China Solids Control Leader&Drilling Waste MangementExpert

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The Component of the Solid Control System

Solid control system is also called drilling fluids purification system, primarily applied for solids control and solid-fluid separation in drilling fluids so that the drilling mud might be recycled. Consisted of 3-7 module composite tanks and configured with 4 phases of purification equipment, it is fit for 2000-7000 meter oil drilling processes. The whole system is innovative with the bottoms of its purification tanks made to be conical and its edges equipped with mud agitating system to prevent solids from depositing. Besides, its tanks and bins may be comparted or united depending on the demands of drilling processes. Each of them is connected to another via pipe network in which the valves at the bottom of suction pipes are flexible while being opened, but can turn to be a good seal when closed.

The Component of the  Solid Control System:

The first main equipment for solid control system should be the vacuum degasser,We could analytics from the function of vacuum degasser. Generally speaking, horizontal vacuum degasser will be used to separate the gas from the drilling solids. What’s the reason to do like that? Because we should do everything to prevent any dangerous elements in oil & gas drilling fields. That’s why we should put the vacuum degasser as the first role.

The second one should be mud cleaner. KOSUN MD Series Mud Cleaner is the second stage separation equipment for drilling fluids, which deals with the mud being treated by the first grade separation equipment. The barite will be recovered and cuttings which are bigger than barite will be removed. Then the barite in the underflow will flow into circulation tanks through the screens when the weighted mud passes while the particles that are bigger than mesh will be removed.

The third equipment, we think it should be shale shaker (with necessary steel frame shaker screen). Actually, after the drilling solids have been transported and fed into vacuum degasser and mud cleaner, the third step is going with shale shaker. Commonly, we still need to be transported the solids onto the shale shaker, or we could say onto the surface of shaker screen. The equipment of transporting we should use is centrifugal sand pump or screw pump; and we may use shear pump to cut the drilling solids into small one if they are in big size. With the different design of the shaker screen’s mesh, we could get the drilling solids separated in different sizes.

The fourth equipment should be the decanter centrifuge. KOSUN DC Series Decanter Centrifuge is used to separate suspended solids ≥2μm in diameter and treat the drilling mud and fluids. It is especially effective when used in oilfield service industry, industrial service industry and especially in environmentally sensitive areas. This type of centrifuge is high in recovery rate, effective in solids control and remarkable in the reduction of cost spent on drilling mud resupplying and management. It is a very sophisticated dynamic balancing machine, able to operate stably with the whirling speed ranging from 0 to 3900 and generate centrifugal force of 3000G. In solid control system, decanter centrifuge has been popularly used, which is also the popular one for drilling waste management. In this step, we could not only get the result of separating, but also we could separate the oil from the drilling solids, even if the oil is just a little part.

Of course, the whole equipment must be mounted on the top of drilling mud tank, which is a kind of basic equipment for both solid control system and drilling waste management (vertical cutting dryer is the core equipment for this system), but it is a kind of powerful equipment.

Kosun- Solid Control System Company