GN sand pump designed for pumping drilling fluid or industrial suspension (slurry), the use of advanced design theory can be pumping abrasive, liquid viscosity (resistance) and corrosion. Compared with an ordinary pump, excellent flow, high temperature, long life, easy maintenance, high reliability, significant energy saving effect and so on, now widely used around the world on land and offshore drilling.
Sand pump connections
Application of Mission sand pump
Mud mixing and shearing operations, demanding and delisting, degassing, supercharging, centrifugal feed, mud cooling towers, and wash down.
Chemical, petroleum (refining), industrial, construction and agricultural applications.
Mission sand pump replacement
1 Best installed near the pumps and pumping source, and to shorten the length of the inhalation segment, reducing the loss of the pump self-priming pump must be installed below the level of the pumping source.
2 Firstly pour the concrete foundation, place″T″type channel iron when pouring, and install skid base after the concrete freezing. All the bases are required to be level in order to avoid the machine shaking.
GN SAND PUMP HEAD
3 Coupling installation
3.1 Coupling must be concentric with Shaft, the two axes must be aligned and its error limits: The value of parallel deviation cannot be over 0.25; the value of intersection angle error of the two axes cannot be over 0.12.
3.2 Check: Checking the two errors by percentage meter with pedestal (As fig. shown). Its two touches must keep close to the outside circle surface or face of the coupling and rotate slowly when checking. Take the max reading shown on the meter as error value.
Mud gas separators in other countries also called Poor boy degasser,Liquid-gas separators,Mud/Gas Separators, etc.GN Solids Control designs and manufactures ZYQ Mud gas Separators. Mud gas Separators is an extremely reliable, vital piece of safety equipment for today’s drilling operations. It is ideal for use where drilling is likely to encounter large volumes of gas, sour gas or when an operator is drilling with an under balanced mud column. This Mud gas Separators is primarily used to separate and safely vent large pockets of free gas, that may include toxic gases such as hydrogen sulfide, etc. from the drilling fluids processing system.
Drilling solids control system
ZYQ series Mud gas separator(Poor Boy Degasser) is professional equipment to treat the gas invade mud. When the drilling mud result gas invade, the proportion of its weight and viscosity have a greater deviation not to meet the requirements of drilling. The serious situation is that would cause Chung well, and even blowout accident occurred, if not to treat it timely.
Oilfield drilling poor boy degasser, that removes air or gases (methane, H2S, CO2 and others) from drilling liquids. It is mainly used to remove the big bubbles with the diameter of about ≥Φ3mm.Most of these bubbles are the expanded gas filled in the drilling fluid in annular of wellbore. It would cause well kick if mot to remove it timely.
Poor boy degasser
There are two generic types that work by both expanding the size of the gas bubbles entrained in the mud (by pulling a vacuum on the mud) and by increasing the surface area available to the mud so that bubbles escape (through the use of various cascading baffle plates). If the gas content in the mud is high, a mud gas separator or “poor boy degasser” is used, because it has a higher capacity than standard degassers and routes the evolved gases away from the rig to a flaring area complete with an ignition source.
Vaccum degasser working principle
The degasser and associated components are designed exclusively for releasing gases from slurries. GNZCQ series vacuum degasser is an new equipment used for processing gas dip drilling fluid developed by our company in reference to various domestic and foreign vacuum degasser. Suitable for supporting various types of mud purification system, and plays an important role in restoring the proportion of the mud, stabilizing slurry viscosity performance and reducing drilling costs.
ZCQ series Degasser belongs to the vacuum degasser, namely the use of the suction effect of the vacuum pump to create the negative pressure region in the vacuum tank, and the mud enter the hollow shaft of the rotor through the suction tube under the action of the atmospheric pressure. And then the mud spray to the tank wall through surrounded windows of the hollow shaft. As collision and the function of separate wheel, the mud separated into thin layers, bubble immersed in the slurry breakup and gas escape. Gas is discharged to safe zone from gas separator through the suction of vacuum pump and separation of gas-water separator. the mud is discharged outside of the tank by impeller. As the main motor starts first, the impeller associated with the motor is in a high-speed rotation state, so mud gets into the tank only from the suction pipe not be sucked from the liquid discharge tube.
Drilling solids control system
Vacuum pump has too different functions. One is using the suction of pump to make the mud enter the vacuum tank. The other is discharging gas out of tank.
Water ring vacuum pump stay at a low temperature at the whole process of working, is suitable for flammable and explosive gas pumping, safe and reliable performance.
Mud through the window of the rotor shoots at walls with high-speed. Bubbles in the mud break very thorough. Degassing effect is very good.
Main motor is side position, whole device with lower center of gravity.
Adopt belted drive to avoid complexity of deduction structure.
Water-gas separater won’t discharge gas and water at the same time to make the degasser tube smooth. In addition, you can cycle the water supply to the vacuum pump, saving water.
Suction pipe insert into mud tank can be used as high power agitator when it’s not gas immersed.
GN solids control can provide HG dryer ,cutting dryer,and material feeding screw conveyer for drilling waste management.For afterward work can be done by below equipment.
Anaerobic Thermal Desorption Unit (ATDU)
The material enters the ATDU and depending on the application, can be heated up to 1,400ºF (760ºC). The ATDU is equipped with a variable speed rotary drum drive and adjustable slope. The rotational speed and the slope of the rotary desorber control the flow of the feed through the unit. Depending on throughput, material residence times over sixty minutes can be realized.
Solids Discharge & Conditioning System
The processed solids leave the ATDU via a high temperature resistant screw conveyor through a double tipping valve (airlock). The airlock ensures that oxygen-deficient conditions within the ATDU are maintained. The solids are cooled and hydrated in a mixing chamber. Water is introduced in the mixer/cooler to prevent fugitive dust and to protect equipment and personnel from the hot solids. Conveyor then transfers the conditioned material to a storage area.
Optional indirect cooling screws are available for applications requiring zero moisture content in discharged solids or where clean water is not readily available.
Vapor Recovery Unit (VRU)
The process gasses leaving the ATDU are normally between 800ºF – 1000ºF (430ºC – 540ºC). The volume of gasses to be treated depends on the contaminants and the feed rate through the plant. The off-gas flow rate can range at approximately 1000-5000 ACFM (30 – 140 m3/min). It collects the larger particulate matter from the exhaust gas stream prior to the Scrubbers. The collected dust is then discharged through air-sealed valve into the soil-conditioned system. After the mechanical collector, the gases first pass through the Pre-Scrubber, where they are scrubbed with water to reduce the temperature and remove most of the oil and the remaining particulate matter. The Venturi Scrubber will remove almost all the remaining particulate from the gas stream. However, to achieve greater removal efficiency an additional separator with Demister is implemented after the Venturi.
Water Treatment Unit (WTU)
Water treatment unit
The Water Treatment Unit is designed to separate the process oil-water-solid mixture after the VRU into three separate streams of oil, water, and solids and to cool the stream of process water for further use in the VRU scrubber system.
The process mixture undergoes a primary separation through an Interceptor before entering the Oil / Water Separator(s) for more fine separation.
GN Solids Control Hydrocyclone Units are designed to separate fine solids from drilling fluids.
Desander is the second phase of oilfield solids control system installed on top of the mud tank following the shale shaker.Desander is mainly composed of 10” hydrocyclone, manifold assembly, 0-1.0mpa diaphragm pressure gauge, sand-flowing slot or bottom shaker. GN desander includes GNWS series without bottom shaker desander, GNZJ752 bottom shaker desander, GNZJ703\GNZJ852\GNZJ853 standard bottom shaker desander.
Desilter is the third phase of oilfield solids control system installed on top of the mud tank following the desander.Desilter is mainly composed of 4” hydrocyclone, manifold assembly, 0-1.0mpa diaphragm pressure gauge, sand-flowing slot or bottom shaker. GN desilter includes GNWS series without bottom shaker desilter, GNZJ752 bottom shaker desilter, GNZJ703\GNZJ852\GNZJ853 standard bottom shaker desilter.
Mud Cleaner is a combination of desander cone, desilter cone and bottom shaker with compact structure. It is called the 2nd and 3rd phase solids control equipment.
Optimal performance of hydrocyclones requires a proper balance of feed head, feed rate (GPM), and apex opening. Improper balance of any of these variables can adversely affect performance.
In normal operation, feed slurry is introduced tangentially into the interior of the hydrocyclone at high velocity causing a whirlpool effect to occur inside the cone. The swirling motion of the slurry drives the larger, denser particles outward against the cone wall while the smaller, lighter particles move toward the center of the cone.
GN also have feeding pump for desander and desilter available ,main spare parts are interchangeable with Mission pump.For more information,pls contact us
The hopper design along with the venturi mixer ensures that clogging and build up of chemicals is avoided. Upstream of the mixing eductor a stream is diverted to a radial premixer above the mixer inlet. Powder chemicals are pre-wetted in the radial pre-mixer before entering the venture stream in the eductor, thus eliminating “fish-eyes” and microgels.
A mud-flow device, also called a jet hopper, in which materials are put into the circulating mud system. The mud hopper is powered by a centrifugal pump that flows the mud at high velocity through a venturi nozzle (jet) below the conical-shaped hopper. Dry materials are added through the mud hopper to provide dispersion, rapid hydration and uniform mixing. Liquids are sometimes fed into the mud by a hose placed in the hopper.
GNSL series Jet Mud mixer
is special equipment to prepare and increase the drilling fluids weight by adding and mixing bentonite, change the fluid density, change the mud density, viscosity, and dehydration. The effect is more prominent matching with Shear Pump
. GNSL jet mud mixer is a unit used together with the solids control system
for petroleum drilling and horizontal directional drilling(HDD).
The unit includes one sand pump, one jet mixing hopper and one jet mixer that are installed in a base with pipe valves. It is safe and stable and can be moved conveniently. At the same time，we can make Twin-Jet Mud Mixer according to the user requirements.It is designed by GN solids control
bentonite mud mixer,drilling mud tank jet mixer.
Twin jet mud mixer
GN can assist with properly sizing a hopper to fit your system. There is no reason to be forced to mount the hopper on top of the mud tanks since the jet-venturi allows for convenient location of the hopper. Sizing assistance should be requested when extensive piping or elevation is planned for the downstream side of the hopper.
GN Solids control ,a professsional oilfiled solids control equipment manufacture in China,every year we manufacture around 150 centrifuges ,this essay is to help you understand how to adjust interlock and bowl speed of centrifuge .
Centrifuge bowl speed adjustment
Adjustment of overload release and electric interlock
The distance between the roller and the drive plate should be appropriately adjusted. If the distance is excessive long, the electric protection will fail to function; if it is excessive short, the roller and the limit switch can easily be damaged.
After each action, the drive plate and the coupling should be reset. The safety pin, the roller and the limit switch should be inspected and replacement should be performed for any damage.
Adjustment of the rotation speed of bowl
The rotation speed of bowl is only allowed to be adjusted within the maximum active rotation speed specified in the specification or on the nameplate of the centrifuge.
Centrifuge speed adjustment
For rated frequency centrifuge, change the main pulley with bigger or smaller diameter and longer or shorter V-belts as well to increase or decrease the rotation speed of bowl.
The bowl of the frequency conversion centrifugal machine can be speed up and down by turning “speed up” or “speed down” knob.
When the operating speed of rotating bowl is increased, smaller solid particle can be separated but the throughput will be reduced, the abrasion, vibration noise and load will be increased and the service life will be shortened.
Hence, it is recommended to rationally select bowl speed according to separation application or solid content in drilling mud. For example, select medium/low speed for recycling barite or high density slurry, select higher speed for medium density slurry, and select the highest speed for low density slurry.
Adjustment of differential speed
The differential speed of centrifuge is generally within the stipulated range and need not to be adjusted by customers. However, customers can only change this parameter within a small range by themselves.
For rated frequency centrifuge, the method is: Pull out the original pulley of the back motor and install pulley with bigger or smaller diameter and belts for replacement. When the pulley of back motor is enlarged, the speed of the input shaft of gearbox will increase, the differential speed will decrease; contrariwise, the differential speed will increase. To the frequency conversion centrifugal machine, to turn the “speed up” or “speed down” knob can change the back motor so as to change rotational speed. Increase in motor speed causes decrease in differential, vice versa.
Excessively high differential speed may result in turbulence of fluid flow, disturb solid deposit and reduce slag discharge; while excessively low differential speed may cause conveyor blocked.
Solids Removal Theory
Drilling fluid and equipment maintenance cost can decrease greatly when proper solids control practices are utilized. From a fluid control stand point it would be desirable in most cases to remove all drilled solids. Although this is possible, it would be cost prohibitive. The goal of a solids control system is to achieve the balance between mechanical solids separation and dilution that will result in drill solids being maintained at an acceptable level with a minimum of cost.
GN solids control system
Benefits of Low Solids In Drilling Mud
- Increased drilling penetration
- Increase bit or back reamer life
- Reduce mud cost
- Reduce triplex mud pump, mud motor & surface equipment maintenance cost.
- Reduced clean up & haul off or disposal cost
These benefits are the result of planning prior to boring and are accomplished through the use of properly designed, sized and operated solids removal equipment. It is the responsibility of the boring crew to become knowledgeable in the proper use of the equipment; otherwise the potential benefits may be reduced or nullified.
Methods of Controlling Solids
- Mechanical treatment
- Chemical treatment
- Dilution of mud with water
- Discard mud & mix new mud.
All of the above with the exception of Mechanical treatment in most cases are cost prohibitive.
GN solids control ,an API&ISO certified solids control and drilling waste management system equpment manufacture in China .Our potential partners are solids control service ,mud service company and oilfiled service company etc.So we list some drilling fluids company in China
GN mud system
1.Greatwall Drilling Company (GWDC),
A subsidiary of China National Petroleum Corporation (CNPC) and an IADC member, is engaged in the worldwide business of petroleum engineering and technical services. Drilling Fluid Services
In the course of 50 years of continuing growth, we have gained valuable experience through drilling practice in drilling fluid technical services. As a result GWDC can provide our clients with super fluids, including field engineering design and service of drilling fluid, prevention of oil and gas formation damage, rig-site waste water treatment and environmental protection, technical consultation and training, sales and supplies of chemical additives, drilling fluid lab testing, rig site processing solid control equipment and more.
2.Shengli Drilling Mud Company.
SDMC is an integrative high-tech and specialized technology services company. This company can supply research, design and technology services of drilling and completion fluid in onshore and offshore， at the same time, it can supply the management and control of drilling fluids waste., development and production of oil field chemical., bulk weighting materials for wells , preparation of drilling and completion fluid., chemical inspection, mud instrument checkout and technology training.
3.SHIJIAZHUANG HUAYUN CHEMICAL INDUSTRY CO.,LTD.
It has been renamed at year 2004. The company produce and sale drilling mud additive and contract site technical support.
4.Shandong Dehunyuan Petro Sci&Tech Co. LTD,
Established in Dongying, Shandong, P.R China in 1999, is a high-tech enterprise which is dedicated to developing the petroleum engineering services. It is reformed from Dongying Luyuan Trading Co. LTD and Shandong Wode Petro Sci&Tech Co. LTD.
What is trailer mounted mud system?
Solids control system or mud recycling system mounted on a trailer to realise easy transportantion from one drilling site to another.Including shale shaker ,desander,desilter,mud agitator,mud guns,mud tank ,lighting and electric control system.The main difference between ordinary mud system is trailer mounted while others are skid mounted.
Trailer mounted mud system
What need to pay attention to when building a trailer mounted mud system?
1In some countries ,such as Austrailia ,has strict regulation on trailer ,has to be licensed and resisterd ,built according to Australia standard.
2.Most countries have road limitations for trailer mud system,especially height and width ,such as height 5m ,wideth 3m.
GN solids control built a trailer mounted mud system for 2013CIPPE show ,including a 14m length tank ,shale shaker ,mud cleaner,centrifugal pump and mud agitator.Besides that also a trailer mounted drilling waste management system,including 14inch decanter centrifuge and cutting dryer.We can also make containerized drilling waste management system ,which has already exported to Russia and Argentina .
Containerized drilling waste management system
GN equipments have been exported to more than 50 countries around the world ,you can find GN equipments working in USA,Australia,South Asia,Middle east Africa,South America,and Russia.
If you are intrerested ,we can take you to the jobsite to check our equipment ,and welcome you to visit our factory near Beijing.