Drilling Waste Management

For a longer lifetime and reliable performance, suitable and on time operation and maintenance on decanter unit is essential. Below instruction from work top cantrifuge manufacturer- GN Solids Control

high speed centrifuge bowl gn mud decanting centrifuge

Operation

A. All safety protection guards shall be installed before starting up. It is forbidden to open the guards of decanter centrifuge to observe the running state of the machines.

B. During the operation of the decanter centrifuge, touch to moving parts and rotation parts should be avoided.

C. It is forbidden to brake in any way before the decanter centrifuge is stopped.

D. If there is abnormal noise and vibration, close down decanter centrifuge immediately and make troubleshooting.

E. It is forbidden to have the decanter centrifuge running at the rotating speed out of active speed that indicated in the instruction and nameplate.

△Only after power is cut off can electrical devices be wired or plugged/unplugged!

Maintenance

A. Only after power is cut off and bowl stops completely running can the decanter centrifuge be dismantled and adjusted.

B. When opening the cover of collecting box, it should be opened sufficiently and be fixed to prevent the sudden closure of the cover and injure the operators.

GN manufacture screw conveyor for drilling cutting transfer to feed the Vertical Cutting Dryer or the HI-G Dryer Shakers. The Screw conveyor allows the drilling waste treatment company to connect the Solids Control System with the drilling waste management equipment.

GN Screw Conveyor Summary 

Generally speaking A screw conveyor or auger conveyor is a mechanism that uses a rotating helical screw blade, called a “flighting“, usually within a tube, to move liquid or granular materials. They are used in many bulk handling industries. Screw conveyors in modern industry are often used horizontally or at a slight incline as an efficient way to move semi-solid materials, including food waste, wood chips, aggregates, cereal grains, animal feed, boiler ash, meat and bone meal, municipal solid waste, and many others. The design of the conveyor is dependent on operating conditions, the type of transported material and its properties. Traffic enforcement can be controlled by changing the speed of propulsion.

 

Screw Conveyor

Screw Conveyor

Screw Conveyors main parts

♦ Conveyor Body (tube or trough)

♦ Worm (spiral shaft with iron)

♦ End Bearings

♦ Feeding Hopper

♦ Dump-tips

♦ Drive System

 

GN Screw Conveyors Feature

♦ Conveyoring Material: Drilling Cuttings,Drilling waste solids

♦ Tilt Angle: 0~40 º

♦Temperature materials transportation: <=200 °c

GN Screw Conveyor market including USA,China,Russian,Middle East,Africa and asian countries.We give customer complete set of equipments for solids control and drilling cutting treatment.

Solids control system is very popular used in the oil and gas drilling, HDD and CBM drilling. For oil and gas drilling, in the past, the driller would dig a large pit on the groud to reserve the used drilling fluids. After the drilling cutting sedimented to the bottom of the mud pit, the upper lever drilling fluids would be reused. To some extent, this method could save some drilling fluids, but the enviromental harmful mud pit brought problems for the driller.

With the fast developing of the drilling industry, the traditional mud pit for solids control would not meet the driller’s request for quickly drilling, as the traditional mud pit solids control would cost much time to sediment the drilling cuttings. If the driller start a new drill, then they need new drilling fluids.

In order to enhance the efficience of solids control, reduce the cost for drilling fluids and harm to environment. The technology of pitless was brought into solids control. Pitless solids control system often used in closed loop drilling system. Including the shale shaker, mud cleaner and centrifuge based on the mud tank, the pitless solids control system could circulate the drilling fluids out of the borehole without reserving in the digged sump. The mud tank functioned as the mud pit, after treatment by the solids control equipments, the drilling fluids could be reused without waiting for cuttings sedimentation.
GN Solids Control Closed Loop System
The cuttings discharged from the solids control system and waste management equipments like Verti G cutting drier would be moved to the cuttings drying and holding area bottom built with an impermeable clay bed covered with caliche. After complete drying, the cuttings could be transported for further disposal.

GN Solids Control, the first API certified manufacturer for drilling mud solids control and waste management equipments, could offer the complete pitless solids control system for drilling projects, for more information,please contact with GN Solids Control.

Extractor,  most commonly called vertical cutting dryer,it is the main equipment for drilling waste management. GN Extractor utilizes centrifugal force to dry drilled solids in oil or synthetic based fluids.

In extractor (cutting dryer), a stainless steel screen bowl traps “wet” solids and accelerates them up 900RPM with G force up to 420. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for proper operation.

GN extractor (cutting dryer) has been done strict balance testing for all major rotary components to minimize vibration & noisy.It is the ideal products for oil based drilling waste management.

How waste management system processing (oil based mud):

1) cuttings from shale shaker, desander,desilter comes into verticalcutting dryer through screw conveyor (auger)

2) After treatment of extractor:

a. useful mud back to recycling system for dilling.

b. waste solids discharged

c. recycled drilling fluids comes into GN Decanter Centrifuge for recovering.

Drilling cutting treatment is one major part for the drilling waste management.For drilling waste,the drilling companies need to have the method to treat the solids part and the liquid phase after drilling.

Drilling Cutting Treatment Equipment

Drilling contractor or the waste management companies usually use the Vertical cutting dryer of the HI G cutting dryer for ths solids phase. GN   VERTI-G cuttings dryers are industry standards as is our all-inclusive cuttings re-injection planning, execution and assurance process. GN Solids Control  are the leaders from China for drilling cutting treatment in desorption technologies incorporating efficient processes for reclaiming base oil, minimizing waste and preparing solids for disposal.

Drilling Cutting Treatment Equipment

Drilling Cutting Treatment Equipment

The GN Vertical Cutting Dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. A stainless steel screen bowl traps “wet” solids and accelerates them up 900RPM with G force up to 420. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for proper operation. GN cutting dryer has been done strict balance testing for all major rotary components to minimize vibration & noisy.It is the ideal products for oil based drilling waste management.

About the drilling cutting waste treatment

Most water-based muds (WBMs) are disposed of when the drilling job is finished. In contrast, many oil-based muds (OBMs) and synthetic-based muds (SBMs) cuttings are recycled when possible. Sometimes the physical and chemical properties of the used muds have degraded somewhat, and the cuttings must be processed to rejuvenate the necessary properties. In other cases, the cuttings have been degraded sufficiently that they cannot economically be reused as new muds, and they must be put to a different type of reuse or final fate.You can consult GN Solids about the drilling cutting treament business.


 

Drilling Waste Management(DWM) has now becoming more and more important for oil & gas drilling.GN Solids Control is a leader for drilling waste management equipments,Our products including Vertical cuttting Dryer,Hi G Dryer,Decanter centrifuges etc.

Following Photoes are the drilling waste management sytem in Beijing  World Largest Oil Show.

Drilling Waste Management

Drilling Waste Management

The Top 5 Largest Drilling Waste Management Companies List

Baker Huges waste management solutions reduce NPT and environmental risk by effectively processing your liquid and solid drilling waste. These processing solutions comprise a suite of treatment equipment that enables you to conduct your drilling operations without fear of losing valuable rig time or harming the environment.GN Solids Control have the cooperation with Baker Huges in Russian for mud cleaners,shakers and shaker screens,and are expanding for more cooperation.

VERTI-G Cutting Dryer is a very important equipment for drilling waste management. GN Solids Control and M-I Swaco are two of the very few companies who provide VERTI-G Cuttings Dryer.

The M-I SWACO VERTI-G cuttings dryer incorporates a high-speed vertical centrifuge that achieves maximum liquid/solid separation in large-volume processing. This mechanism makes the VERTI-G Cuttings Dryer one of the industry’s best performing and most dependable cutting dryers. The VERTI-G Dryer gives operators a critical advantage in meeting increasingly stringent environmental rules for cuttings disposal.

The M-I SWACO VERTI-G Cuttings Dryer employs either auger or roto valve feed. In the VERTI-G process, cuttings are conveyed from the shakers to the dryer through a variety of site-engineered conveyance systems, including:

  • Gravity feed
  • Pneumatic transfer
  • Vacuum transfer
  • Screw conveyors

    GN VERTI-G Cutting Dryer

    GN VERTI-G Cutting Dryer

The flow of cuttings into the VERTI-G Cutting Dryer centrifuge is PLC-controlled and continuously fed to yield optimum liquids/ solids separation. Once cuttings are introduced into the dryer’s charge hopper, widely spaced, independently adjustable flights continuously direct cuttings to the screen surface. Flights are tungsten carbide coated to reduce wear and ensure optimum tolerance.

Solids are discharged at the screen bottom and fall by gravity into the water-flushed cuttings trough and shunted overboard or collected for onshore disposal. Processed liquids pass through the screen and then exit through one of two effluent openings. The fluid is collected and pumped to the M-I SWACO decanting centrifuge for final processing and reuse in the active mud system.

In addition to helping operators around the world meet environmental demands, the VERTI-G cuttings dryer improves overall cost-efficiency. Valuable drilling fluids can be recovered from cuttings, as well as whole mud lost from shaker failure and rig motion. The VERTI-G cuttings dryer is effective with oil-, and synthetic-base drilling fluids and minimizes waste volume, dramatically reducing disposal costs

Safety Features Of MI-Swaco Vertical Cutting Dryer

  • Explosion-proof motors and start/stop boxes are certified for use in Class I, Division I areas
  • Integrated, custom-built stands and walkways reduce risk to personnel

GN VERTI-G Cuttings Dryer

The GN Vertical Cutting Dryer uses centrifugal force to dry drilled solids in oil or synthetic base fluids. A stainless steel screen bowl traps “wet” solids and accelerates them up 900RPM. Liquid is forced through the screen bowl openings, while “dry” solids are extracted by the angled flights attached to the cone, which rotate slightly slower than the bowl. Tungsten carbide protects the flights from abrasive solids and ensures long operational life. This aids in maintaining a constant gap between the scroll and screen bowl, which is crucial for proper operation.

For the drilling waste management,GN not only have VERTI-G Cutting Dryer,but also we have HI-G Dryers available.