Mud Treatment System
Drilling Mud System Application Field
Drilling Mud Cleaning Systems are widely used for Oil Gas drilling mud circulation, Horizontal directional drilling mud recycling, geothermaldrilling, mining, coal exploration drilling,water well drilling etc.WOOMIN have experience for drilling mud cleaning solutions in all kinds of drilling.
WOOMIN drilling fluid system is turnkey solution with first time commissioning service,training up of users engineer for operating the mud system.
- WOOMIN Equipment for drilling mud systems Shale Shaker, MudCleaner ,Desander ,Desilter, Centrifuge, Degassers, Agitator, Mixing Hoppers, Flare Igniter, Various Tanks, Pumps etc
- All phased of drilling mud cleaning equipment to clean your drilling mud for different types of drilling .
1. Shale Shaker
Shale shakers are components of drilling equipment used in many industries, such as coal cleaning, mining, oil and gas drilling.
They are considered to be the first phase of a solids control system on a drilling rig, they are used to remove large solids also called cuttings from the drilling fluid, more commonly called “Mud” due to its similar appearance.
Drilling fluids are integral to the drilling process and, among other functions, serve to lubricate and cool the drill bit as well as convey the drilled cuttings away from the bore hole. These fluids are a mixture of various chemicals in a water or oil based solution and can be very expensive to make.
For both environmental reasons and to reduce the cost of drilling operations, drilling fluid losses are minimized by stripping them away from the drilled cuttings before the cuttings are disposed of.
This is done using a multitude of specialized machines and tanks.
Shale shakers are the primary solids separation tool on a rig. After returning to the surface of the well the used drilling fluid flows directly to the shale shakers where it begins to be processed. Once processed by the shale shakers the drilling fluid is deposited into the mud tanks where other solid control equipment begin to remove the finer solids from it.
The solids removed by the shale shaker are discharged out of the discharge port into a separate holding tank where they await further treatment or disposal.
Shale shakers are considered by most of the drilling industry to be the most important device in the solid control system as the performance of the successive equipment directly relates to the cleanliness of the treated drilling fluid.
Drive Principle Filter Out the fragment of rock included in mud and accumulate the passed mud in the Sand trap tank. Component Excitation Motor, Plate, Dip Adjustment Device etc. Model WMSS200 WMSS400 WMSS528 WMSS615 Deck No. Single Deck Vibrating Mode Linear Motion Treating Capacity 200GMP (45m³/h) 400GMP (90m³/h) 528GMP (120m³/h) 615GMP (140m³/h) Motor Power 2 X 0.75Kw 2 X 1.5Kw 2 X 1.72Kw 2 X 0.75Kw Vibrating Strength 7.5G(Adjustable) Deck Adjustment -2° -1 ~ 2° -1 ~ 5° -1 ~ 5° Power 380V / 50Hz, 460V / 60Hz or Customized Shaker Screen 2 Panel 1.4m² 2 Panel 2.1m² 3 Panel 2.6m² 3 Panel 3.2m² Dimension (Top Buffer Box) 1650 X 1260 X 1077mm 1975 X 1884 X
2403 X 1884 X 1448mm 1830 X 1884 X 1448mm Dimension (Back Buffer Box) N/A 2283 X 1884 X 1340 mm 2750 X 1884 X 1340mm 3180 X 1884 X 1340mm Weight 750kg 1200kg 1390kg 1650kg Remark Capacity test at condition : Mud Weight 1.2/cm² viscosity 45s API 40
Degasser is a device used in drilling to remove gasses from drilling fluid which could otherwise form bubbles.
For small amount of entrained gas in a drilling fluid, the degasser can play a major role of removing small bubbles that a liquid film has
enveloped and entrapped.In order for it to be released and break out the air and gas such as methane, H2S and CO2 from the mud to the surface,
the drilling fluid must pass degassing technique and it can be accomplished by the equipment called degasser which is also a major part of a mud systems.
Vacuum Type is the most common form of degasser. It can be horizontal, vertical or round vessel. A vacuum action is created to pull in the gas cut mud.
When the liquid enters the tank it will flow and be distributed to a layer of internal baffle plates designed for the mud to flow in thin laminar film
and is exposed to a vacuum that forces the gas to escape and break out of the mud.The vacuum pump moves the escaping gas from the vessel discharging
it to the rig’s flare or environmental control system.
Drive Principle Remove the Formation gas of retrieved mud during drilling and Stabilize the viscosity of mud.
Also maintain the best volumetric efficiency and the effective mud mixing.
Component Column, Flange, Pipe Line etc. Model WWVD1200 WWVD1500 Tank Diameter 800mm 1000mm Max Capacity 270m³/h (1200GPM) 360m³/h (1500GPM) Vaccum 0.030 ~ 0.050Mpa 0.040 ~ 0.065Mpa Ratio 1.68 1.72 Efficiency ≥ 95% ≥ 95% Vacuum Pump 22kw 37kw Rotary Speed 870Rpm 880Rpm Dimension 2000 x 1000 x 1670mm 2400 x 1500 x 1850mm Weight 1350kg 1800kg
3. Mud Cleaner
Mud cleaner is a combination of desanders and/or desilters to remove drilled solids from mud.
A mud cleaner is a combination of desanders and/or desilters mounted over a shaker with a fine mesh screen. A mud is fed to the inlet of the hydrocyclone (desander and/or desilter) to separate particles and the underflow passes to the fine screen mesh where in particles larger than barite are discarded and thrown away. In most drilling operations, a mud cleaner is installed in its mud systems. It is usually located in a mud tank in the same location as with the desilters.
The weighted mud flows to the inlet head section of the desander and/or desilter entering the hydrocyclones for separation of particles. Mud leaving the underflow is further screened with fine mesh to separate larger particles allowing only barite size particles to pass through the screen returning and recovering then the clean mud.
The purpose of the mud cleaner is to remove drilled solids larger than barite. Solids larger than 74-105 micrometres can be removed by the mud cleaner before the viscosity builds up. Mud cleaner can effectively control weighted drilling fluid solid content. Prevent differential pressure sticking, adhesion stuck drill accident, reduce the drill string and the filter cake thickness on bond issues.
Drive Principle Remove the solid from weighted mud without loss of barite. Component Column, Flange, Pipe Line etc. Model WMMC500 WMMC1000 WMMC1500 Treating Capacity 500GPM 1000GPM 1500GPM Desilter Cones 8 x 4 inch 12 x 4 inch 16 x 4 inch Desander Cones 1 x 10 inch 2 x 10 inch 3 x 10 inch Vibrating Mode Linear Motion Matching Pump 30 / 37 Kw 45 / 55 Kw 55 / 75 Kw Shaker Motor WMMC500 WMMC1000 WMMC1500 Screen Area 2.1m² 2.6m² 3.2m²
Screen Qty 2 panel 3 panel 2 panel Dimension 1975 x 1884 x 1851mm 2403 x 1884 x 2195mm 2830 x 1884 x 2195mm Weight 1700kg 2090kg 2240kg Screen Size API 120 / 150 / 175 Remarks WMMC1001 with 8 x 4 inch desiliter and 1 x 10 inch desander is available
WMMC1501 with 12 x 4 inch desilter and 2 x 10 inch desander is available
Desander and desilter are solid control equipment with a set of hydrocyclones that separate sand and silt from the drilling fluids in drilling rigs. Desanders are installed on top of the mud tank following the shale shaker and the degasser, but before the desilter.
Desander removes the abrasive solids from the drilling fluids which cannot be removed by shakers.
Normally the solids diameter for desander to be separated would be 45~74μm, and 15~44μm for desilter.
Drive Principle Control the volume of stored mud in the Sand trap tank. Component Shaker, Cone, Mesh, Pipe etc. Model WMDESAN500 WMDESAN1000 WMDESAN1500 Treating Capacity 500GPM 1000GPM 1500GPM Cone Size 10 inch 10 inch 10 inch Cone Number 1 Each 2 Each 3 Each Pressure 0.25 ~ 0.4 Mpa Matching Pump 30 / 37 Kw 45 / 55 Kw 55 / 75 Kw Separation 40 ~ 75 microns Inlet Size 6 inch 6 inch 6 inch Outlet Size 8 inch 8 inch 8 inch Dimension 1618 x 1000 x 1900mm 1618 x 1000 x 1900mm 1618 x 1000 x 1900mm Weight 430kg 490kg 550kg
A hydrocyclone much like a desander except that its design incorporates a greater number of smaller cones.
As with the desander, its purpose is to remove unwanted solids from the mud system. The smaller cones allow the desilter to efficiently remove smaller diameter drill solids
than a desander does. For that reason, the desilter is located downstream from the desander in the surface mud system.
Drive Principle Possible for a maintenance of the optimized mud. Component Saparator, Valve, Pipe ect. Model WMDESAN500 WMDESAN1000 WMDESAN1500 Treating Capacity 500GPM 1000GPM 1500GPM Cone Size 4 inch 4 inch 4 inch Cone Number 8 Each 12 Each 16 Each Pressure 0.25 ~ 0.4 Mpa Matching Pump 30 / 37 Kw 45 / 55 Kw 55 / 75 Kw Separation 15 ~ 25 microns Inlet Size 6 inch 6 inch 6 inch Outlet Size 8 inch 8 inch 8 inch Dimension 1880 x 1000 x 1600mm 1880 x 1000 x 1600mm 1880 x 1000 x 1600mm Weight 565kg 590kg 615kg
Decanter Centrifuge separate the suspending fluids using the principle of centrifugal action, the suspending fluids is pushed into the rotor drum through the inlet pipe and the fluid hole of the spiral feeder.
Under the influence of centrifugal force, solid phase particles are pushed to the internal wall of the drum, then to the mud export of the small end of the drum and excreted. But the fluids is excreted from the overflow hole of the large end.
Such cycle is in order to achieve the purpose of continuous separation.High speed decanting centrifuge are effective for separation.
Drive Principle Recycle the barite included in mud to reuse the mud. Component Bowl, Conveyor, Tube etc. Model WMDC250 (Fixed)
Bowl Diameter 450mm (18inch) 360mm (14inch) 550mm (22inch) Bowl Length 1100mm (43inch) 1270mm (43inch) 1800mm (43inch) Max Capacity 250GPM(57m³/h) 200GPM(45m³/h) 500GPM(110m³/h) Normal Capacity 176GPM(40m³/h) 132GPM(30m³/h) 400GPM(90m³/h) Bowl speed(Typical) 2200 RPM 3200 RPM 2500 RPM Bowl speed(VFD) N/A 0 ~ 3200 RPM 0 ~ 2500 RPM G-Force(Max) 1574 3063 2770 Separation Point 5 ~ 7 Microns 2 ~ 5 Microns 2 ~ 5 Microns Main Drive 45Kw (60hp) 37Kw (50hp) 90Kw (120hp) Back Drive 15Kw (20hp) 11Kw (15hp) 37Kw (50hp)
Mud Gas Separator is commonly called a gas-buster or poor boy degasser. It captures and separates large volume of free gas within the drilling fluid.
If there is a “KICK” situation, this vessel separates the mud and the gas by allowing it to flow over baffle plates. The gas then is forced to flow through a line and vent it to a flare.
A “KICK” situation happens when the annular hydrostatic pressure in a drilling well temporarily (and usually relatively suddenly) falls below that of the formation, or pore, pressure in a permeable section downhole, and before control of the situation is lost.
Drive Principle Remove the liguid, gas, solid included in the retrieved mud after drilling and discharge the firedamp and toxic gas in safety. Component Vessel, Pipe, Separation Unit etc. Model WMMG1000 Main body Diameter 1000㎜ Wall Thickness 10㎜ Capacity 240 ~ 320㎥/h Inlet Pipe 4″ Outlet Pipe 10″ Gas Discharge Pipe 8″ Weight 2000㎏ Dimensions 2000×2000×5860㎜ Height Adjustable N/A