Chemically Enhanced Centrifugation, CEC, otherwise known as flocculation, is a
method to enhance the remove of fine solids in WBM through a vertical
centrifuge. Small quantities of additives are mixed with theused WBM, which
coagulate and flocculate fine colloidal solids into larger clumps, which are then
easily removed using a centrifuge.CEC reduces the volume of waste mud generated
as it allows the clarified fluid to be reused to build new drilling fluids. Overall
the total volume of waste, the size of the pits, and the quantity of water
required per well are all reduced.
During drilling with WBM, fine colloidal solids build up, eventually leading
to a requirement to dump or dilute. CEC offers an alternative a sit allow the
fine particles to be coagulated, flocculated and removed by the use of a
centrifuge. A coagulant is added to neutralise the negative charges holding the
fine colloidal particles apart followed a flocculent (typically a polymer) to
bridge together the small floccs into larger clumps, which can then be removed by
gravity separation or a centrifuge.
The CEC system is a containerized compact unit designed to meter in the
correct quantities of both coagulants and flocculent. It has tanks to store the
prepared chemical solutions and metering pumps to accurately dose them into a
mud mixing line. The flocculated mud should be centrifuged at low speed to ensure
the clumps are not broken up by excessive shear.
Benefits of chemically enhanced centrifugation :
1. Overall reduction in water usage and increased recycling
2. Smaller pit volumes and in closed loop system no need for a reserve
pit
3. Reduced environmental impact
4. Real time mixing reduces overall chemical consumption
5. Powder polymer unit reduces chemical consumption
Related equipment: decanter
centrifuge
2015年9月9日星期三
Three-in-one drilling fluids recycling equipment mud cleaner
Three-in-one mud
cleaner, a combination of desander, desilter
and high efficient shale shaker, can further separate the smaller solid
particles left in the mud after primary treatment in shale shaker for a better
treatment in the following equipment. MD Mud Cleaner can serve as independent
equipment, or as spare equipment in parallel with first-stage solids
control equipment--shale shaker by mere application of its underflow
shaker.
Drilling fluids enters from the mud compartment under vacuum degasser into desander via the force of its pump, flows into the compartment under desander after treatment, accesses desilter by mud pump and then goes for further treatment in decanter centrifuge through spillway trough afterwards.
The mud cleaner will be an ideal and then efficient cleaning gear for two-level or three-level solid phase control associated with the drilling mud because of its compact structure, tiny space occupation coupled with potent functions. The mud cleaner is combined and configured by one to three greatly wear-resistant polyurethanedesander hydrocyclone and eight to sixteen fairly wear-resistant polyurethane desilter hydrocyclones. Diameters for its overflow pipe and feed pipe are bigger while taper angles associated with the cone are smaller-sized.
A tilted metallic groove fixed with the center shaft is used inside the mortar steering component to manage flow direction about the mortar. The cyclone group arranged in circle is employed together with the rectangular recycling vibrating screen. The function connected with the mud cleaner is to cope with larger drilling cuttings in the mud in order to ensure the remedy impact. What’s more, the mud cleaner has such positive factors as lower energy consumption, higher efficiency, larger screening precision, less noise, straightforward and handy installment, basic maintenance, longer service life, larger efficiency in drilling solids separation, simple structures, reduced costs and additional convenience in movement and relocation.
Drilling fluids enters from the mud compartment under vacuum degasser into desander via the force of its pump, flows into the compartment under desander after treatment, accesses desilter by mud pump and then goes for further treatment in decanter centrifuge through spillway trough afterwards.
The mud cleaner will be an ideal and then efficient cleaning gear for two-level or three-level solid phase control associated with the drilling mud because of its compact structure, tiny space occupation coupled with potent functions. The mud cleaner is combined and configured by one to three greatly wear-resistant polyurethanedesander hydrocyclone and eight to sixteen fairly wear-resistant polyurethane desilter hydrocyclones. Diameters for its overflow pipe and feed pipe are bigger while taper angles associated with the cone are smaller-sized.
A tilted metallic groove fixed with the center shaft is used inside the mortar steering component to manage flow direction about the mortar. The cyclone group arranged in circle is employed together with the rectangular recycling vibrating screen. The function connected with the mud cleaner is to cope with larger drilling cuttings in the mud in order to ensure the remedy impact. What’s more, the mud cleaner has such positive factors as lower energy consumption, higher efficiency, larger screening precision, less noise, straightforward and handy installment, basic maintenance, longer service life, larger efficiency in drilling solids separation, simple structures, reduced costs and additional convenience in movement and relocation.
Why do more people select KOSUN shale shaker?
As we know, drilling fluid shale
shaker is the first stage solids
control equipment in the mud cleaning system, also it is the obbligatory
equipment of the whole drilling. So the function of it directly influences the
whole drilling mud system, now let me introduce you two quality shale shakers.
KOSUN shale shakers offer an ideal combination of high efficiency, flexibility,
space optimization and longer service time. It can adapt quickly as drilling
conditions and cuttings volumes change, creating lower waste volumes, costs,
downtime and environmental footprint. It has the following features:
1. Structure is optimized with less quick-wear parts, compact and modular form can meet tight-space requirements.
2. Fully seam welded,heat treatment on complete shaker basket and base.
3. Fitted with high strength coil or rubber isolator spring, it results in consistent vibration isolation with variable loading.
4. Shaker surface is painted with heavy anticorrosive marine coatings, completely following sand blasting and paint spraying process, having superb anti-corrosion properties, fast colours and high gloss.
5. Vibratory motion driving G-force in 7.5 G’s producing drier cuttings discharge and improved separation efficiency.
6. Feeder can present fluid to the scalping screens as a uniform, low-impact curtain, utilizing all available screen area, regardless of drilling conditions.
7. Spare parts and consumables have been designed to ensure the lowest replacement cost and long-term product durability.
8. Shaker screen mesh is up to API standard. Also, replacement of pre-tensioned composite screen is made easy using our wedge block technology with limited downtime.
9. Leaving the useful bentonite & barite particles in suspension for re-use, dramatically reducing disposal costs.
10. Ultra-tight seal between screen and screen bed eliminates solids buildup and costly bypass of solids.
11. Electric control system is designed explosion-proof, conforming to the standard of IEC ExdⅡBT4, thus creating safe operation environment.
12. By using readily available electrical components and standard fastening assemblies, maintenance concerns are eliminated.
13. Deck angle adjusting device is reliable mechanical jack. Bilateral angle can be adjusted from –1 to +5 degrees during operation.
14. All HEAVY shakers are available for integration with existing rig assets. All shakers can be mounted two or three together on a common crosser for easier transportation and installation.
15. Rugged construction and corrosion-resistant materials provide long service life and low maintenance costs in the toughest oilfield environments.
Optimized solids control efficiency and reduce costs in high conveyance rate, our shakers keep solids at bay, allowing your active drilling fluid to perform at peak efficiency.
1. Structure is optimized with less quick-wear parts, compact and modular form can meet tight-space requirements.
2. Fully seam welded,heat treatment on complete shaker basket and base.
3. Fitted with high strength coil or rubber isolator spring, it results in consistent vibration isolation with variable loading.
4. Shaker surface is painted with heavy anticorrosive marine coatings, completely following sand blasting and paint spraying process, having superb anti-corrosion properties, fast colours and high gloss.
5. Vibratory motion driving G-force in 7.5 G’s producing drier cuttings discharge and improved separation efficiency.
6. Feeder can present fluid to the scalping screens as a uniform, low-impact curtain, utilizing all available screen area, regardless of drilling conditions.
7. Spare parts and consumables have been designed to ensure the lowest replacement cost and long-term product durability.
8. Shaker screen mesh is up to API standard. Also, replacement of pre-tensioned composite screen is made easy using our wedge block technology with limited downtime.
9. Leaving the useful bentonite & barite particles in suspension for re-use, dramatically reducing disposal costs.
10. Ultra-tight seal between screen and screen bed eliminates solids buildup and costly bypass of solids.
11. Electric control system is designed explosion-proof, conforming to the standard of IEC ExdⅡBT4, thus creating safe operation environment.
12. By using readily available electrical components and standard fastening assemblies, maintenance concerns are eliminated.
13. Deck angle adjusting device is reliable mechanical jack. Bilateral angle can be adjusted from –1 to +5 degrees during operation.
14. All HEAVY shakers are available for integration with existing rig assets. All shakers can be mounted two or three together on a common crosser for easier transportation and installation.
15. Rugged construction and corrosion-resistant materials provide long service life and low maintenance costs in the toughest oilfield environments.
Optimized solids control efficiency and reduce costs in high conveyance rate, our shakers keep solids at bay, allowing your active drilling fluid to perform at peak efficiency.
订阅：
评论 (Atom)