Drilling mud Equipment

Bearing is one of the most important parts for high speed rotating equipment, like oil field decanter centrifuge. A high quality and suitable model bearing plays an very important role on the lifetime of decanter centrifuge.

How to ensure suitable bearing for decanter centrifuge

1) Choose original famous brand bearings. For international market, the best choice small bearing brand is SKF, while FAG is the best choice for big bearing. For save cost, NSK bearing can also be a good choice.

2) Lubrication and Maintenance: Lubricate the bearing per bearing operation manual indicated. Choose high quality high temperature lithium grease, add suitable amount grease, no more, no less.

What to do in case bearing temperature higher:

1) Firstly, stop the machine immediately to avoid damage to bearing or the oilfield centrifuge.

2) Be sure the grease quality is suitable model and top quality per bearing user manual request.

3) Be sure to add grease with suitable volume, no more no less.

4) Be sure to empty the old grease in the bearing and then add new grease, after that, start the centrifuge.

5) Be sure it is in clean environment while remove bearing to avoid dust on it;

6) Be sure the bearing is clean & in good condition, if not, clean it or change it. If there is sands or dust on the bearing, clean it with gas or exclusive cleaner.

Above is some of knowledge on centrifuge bearing. If the users have more questions, contact world famous centrifuge manufacturer – GN Solids Control.

Specifications for 750hp workover rig mud system package

Complete Mud system package for 750hp workover rig including but not limited to the following:

3 Mud Tanks, volume of each 40 cubic meters, for 750hp workover rig mud system package.

Mud Tanks Specifications of the 750hp workover rig mud system package

API Skid I Beam, API lifting.

Bottom tanks steel sheet 12 mm thickness

Side Walls of corrugated steel 40 mm thickness

Suction Line in bottom 8” x 6” Schedule 80

Drain line with 10” butterfly valve

Top ream of 4” pipe schedule 40

Equipped with all required butterfly valves

Tanks to be covered with API Grating & with API Hand Rails

750hp mud system package Mixing tank of 2 compartments equipped with the following

6” Mud Hopper

2 Mud guns

2 Mud Agitators

Two Mission Type centrifugal Pumps (8×6-14) 75 HP

Active Tank for the 750hp workover rig mud system of 2 compartments equipped with the following

2 Mud guns

2 Agitators

Desander

Shale Shaker Tank for the 750hp workover rig mud system equipped with following

Two Shale Shakers rated capacity up to 600 GPM, and sand trap.

Mud Gas Separator, also named poor boy degasser. It is common but necessary equipment for oil and gas drilling field. It is similar like a fire extinguisher to the oil and gas drilling field. Normally, it may do not need to be used. But once it is necessary, there should be risking condition need to be controlled reliably and properly to avoid disaster.

Definition of atmospheric Mud Gas Separator (poor boy degasser) for oil and gas drilling

Atmospheric Mud Gas Separator (poor boy degasser) is a kind of mud gas separator with directly gas outlet pipe (vine line) on top of the separator and discharge gas directly to the environment, without matched with flare igniter. GNZYQ1000A Mud Gas Separator equipped 3m to 10m vent line to discharge gas to the environment. In the condition of vent line pipe over 5m in length, it should be 3 places stretch lines to fasten it.

Function of Mud Gas Separator (poor boy degasser)

Gas cut fluid influx into mud gas separator, when go through the find fine hole, gas will be smashed and go out from the vent line from top, fluids will fall into the mud gas separator tank. Pipe line of atmospheric Mud Gas Separator (poor boy degasser) Vent line: 8” OD vertical outlet height 3 ~ 10m, with flange connection to the separator body for easy transport. Fluids outlet U-tube: OD 8” and fluids sealing height 10 ft. Fluids Inlet pipe: OD 4”, API standard

Other types of Mud Gas Separator (poor boy degasser)

Atmospheric Mud Gas Separator (poor boy degasser) discharge gas directly to environment, while another type is flare mud gas separator. Flare mud gas separator connected with a flare ignite. The vent line is with min. 50m in length and lead the gas to remote area away from drilling rig hazardous area and fire it.

World top manufacturer for solids control and drilling waste management equipment, they get an urgent request to deliver one high G shale shaker with one sump tank to be used as drying shakers for OBM (Oil based mud) cuttings.

Below is the detailed request of customer:

1- Quotation for drying Shaker and related skid itself.

2-  Quotation for 15 bbls sump tank with 1 x 4”  Flange and 1 x 2” Flange connection; the customer also attached pictures of a drying Shaker with sump tank.

3-  Shaker Screen: 140 API Size and 120 API Size.

4-  Two years spare parts.

For the sump tank, GN Solids Control engineer cannot make sure the position of the flange and inlet or outlet just for customer attached pictures,  so we put forward questions to specify following for quick solution:
1)  Please you send us drawing of the sump tank in order to see connection of the drying shaker,inlet & outlet, size, flange connection?
2) Or pls send us more pictures from different views to show item 1 information.

The customer give answers very soon as below:

1) We intend to install a shaker on a tank that length and width of the sump tank is exactly same as drying shaker length and width basket and we want the height of the sump tank to be at range of 1 m.

2) We need two flanges by 2″ and 3″ size to be installed on width side close to the bottom the tank to be able to connect a Welden pump (air supply type) and suck collected oil for the sump tank that has been installed below the H-G Drying shaker into the active mud system.

And customer further request: for drying shaker, they usually don’t need the back buffer box.

Based on above information, GN Solids control engineer give proposal as below:

1) High G drying shaker model GNZS594HGE-LD, with hoper feeding on shaker top for drilling waste management system.

2) Sump tank with length and width is exactly the same as drying shaker length and width basket, and total height with skid is 800mm for usable capacity 15bbls

3) Further more, GN Solids recommend its screw conveyor to transfer cuttings from solids control shaker to the high G drying shaker. Customer is satisfied and give orders.

There is a cleaning Tank for GN500 GPM mud recycling system for Saudi Arabia HDD rig, the tank is divided into 3 compartment, 1# Shaker compartment, 2# De-sander compartment, 3# Mixing compartment.

Detailed process features of GN500 GPM mud recycling system for Saudi Arabia HDD rig

1) Continues feeding of dirty slurry from mud pit to Shale Shaker.

The GN100YZ100A-30 Submersible slurry pump feed slurry from mud pit to GNZS703E Shale Shaker at capacity of 528 GPM.Slurry pump is made from Cr26 Abrasion resistant Alloy which allow users to pump high solids content fluids.

2) Pre-screening of the returned mud using GNZS703E Shale Shaker for the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

This shaker can handle a throughput of more than 528 USgpm and is designed to remove particles down to 250 microns(60mesh) @ 7G force linear motion GNZS703E Shale Shaker with big screen area (2.63 ㎡)

3) Secondary and third cleaning of the returned mud using a GNZJ703E (10″×1 + 4″ × 8) Mud Cleaner.

1# GNSB5×4A-13J Centrifugal pump feed mud from 1# Shaker compartment to feed 10″×1 de-sander cones, where the particles larger than 50 microns are separated out by centrifugal force from desander cone nipple, and get down to GNZJ703E mud cleaner bottom shaker with a finer screen (150/200mesh) which again produces a virtually dry product. Major fluids with particle size less then 50microns goes to 2# De-sander compartment. This is the 2nd phase solids control of the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

2# GNSB5×4A-13J Centrifugal pump suck mud from 2# desander compartment and feed to 4″x8 desilter cones. Where the particles larger then 16microns are separated out by centrifugal force from desilter cone nipple, and get down to GNZJ703E mud cleaner bottom shaker with a finer screen, which again produces a virtually dry product. Major fluids with particle size less than 16 microns goes to 3# Mixing compartment. This is the 3rd phase solids control of the GN500 GPM mud recycling system for Saudi Arabia HDD rig.

4) Integral mixing system using GNSLS35A-300 Jet Mud mixer for GN500 GPM mud recycling system for Saudi Arabia HDD rig.

This GN500 GPM mud recycling system for Saudi Arabia HDD rig allows fresh mud to be prepared very rapidly from bentonite powder. One of the 2 pumps on tank end is dedicated to this function allowing continuous mixing or recirculation as required.

5) Integral charge pumps to supply clean mud back to the drilling rig.

The mixing pump above is a dual function pump, on mixing pump outlet with a T pipe can be controlled by a valve to provide a continuous supply of clean mud from 3# mixing compartment under pressure to the high pressure mud pump, avoiding problems of starvation and cavitations which can rapidly cause damage.

There are hundreds of famous oil company  throughout the wide, government owned or non-government. Belong list is for some of the most famous oil companies.

1) ExxonMobil

ExxonMobil is the world’s largest non-governmental oil and gas producer and the world’s largest non-governmental natural gas distributor; and also is one of the world’s largest refiner, its 45 refineries distributing in 25 countries have oil refining capacity of 6400000 barrels per day. ExxonMobil owns over 37,000 gas station and 1 million industrial and wholesale customers in the world. Every year ExxonMobile sells about 28 million tons of petrochemical products to over 150 countries. The company for 85 consecutive years won the 3A credit rating. It is one of the few companies that keep this world record.

2) Royal Dutch Shell Plc (Short name”Shell”)

Royal Dutch Shell Plc (“Shell”) is with short name Shell. Shell is a global group of energy and petrochemicals companies with around 92,000 employees in more than 70 countries and territories. Shell is the share combination of Shell Transportation and Trade Co., Ltd. (UK) with Royal Dutch Oil Company shares which was found in 1907. Shell is the second largest oil company in the world
In year 2007, Shell has turnover around $318 billion, ranking third in the world.

3) Chevron Texaco

Chevron Texaco is the second largest American oil companies, business throughout 180 countries and regions in the world. In year 2007, Chevron Texaco has turnover around $200 billion, ranking seventh in the world.

4) ConocoPhillips

ConocoPhillips is the combination of Conoco, Phillips, Tusco and Williams etc.. It is the third large oil company in America.

5) BP

British Petroleum (BP) is a multinational oil company and it is the world’s fourth largest oil company. BP business is over 100 countries and regions in the world, covering oil and gas exploration and production, refining and marketing, petrochemicals, BP is also involved in finance, solar energy and other field. The company is headquartered in London, the current chairman David Simon (David Simon), General Manager John Brown (John Browne). BP is the world’s third-largest publicly traded oil company, and its shares are traded on the New York, London, Paris, Frankfurt, Zurich, Tokyo listing.

6) Total

TOTAL is one of the four largest petrochemical companies in the world. Its lubrication business is in more than 110 countries worldwide.TOTAL has headquartered in Paris, France, It is composed of 3 major brands: TOTAL, FINA and ELF.

What is a telescopic skid for drilling waste centrifuge?

Telescopic skid is a high skid with adjustable height. In drilling waste field, it is mainly used to mount decanter centrifuge.

GN Solids Control company offer telescopic skid with height changed between 2.0m, 2.2m and 3.3m. It can meet most drilling site condition.

When need to use a telescopic skid, the advantages of it?

In mud recycling system (solids control system), there will be many tanks, decanter centrifuge can be mounted on the tank top. Hydraulic phase will fall into the tank under the centrifuge. Then a pump charge mud centrifuge tank to other tank or processing machines.

In drilling waste management system, the centrifuge can be mounted to a telescopic skid. With the skid, the centrifuge fluids outlet port should be higher than other mud storage tank. In this case, hydraulic phase can flow under garavity into mud storage tank or other device already there. No extra tank to store the mud and no need charging pump for the transfer. It can save cost of tank, and save power. And another side, the space under the telescopic skid can be used to mount other machine or device, like VFD control panel, centrifuge feeding pump, or others.

In oilfield drilling, there is a lot for different sludge including drilling waste, water, oil, and cuttings. This makes it to be a tought job to managing the liquid and solids separation. Especially getting enough drying solids from the mixture of drilling waste from mud sytem and tank cleaning waste.Now from GN lastest oifield application cases we have Vertical Cuttings Dryer for the tough job.

Video:GN 2nd Generation OBM Cuttings Vertical Dryer Factory Testing

For getting oil on cuttings to below 3%, waste management company normally use the Thermal deporption unit (TDU)

Thermal desorption is an ex-situ treatment technology that utilizes heat to increase the volatility of contaminants such that they can be removed from a solid matrix: typically, soil, sludge, filter cake, or drill cuttings. Desorbers are designed as a separation technology to remove organic compounds from such matrices without thermally destroying them. The volatilized contaminants are then either collected or thermally destroyed in secondary treatment units. A thermal desorption system therefore has two major components; the desorber itself and the off-gas treatment system.

Usage for TDU in Drilling Sludge

Thermal desorption is a thermal soil remediation technique that has been utilized at several hundred environmental remediation projects world wide. As a mature technology, thermal soil remediation performance can be predicted with a high degree of confidence.

Besides ultilizing GN Vertical cuttings dryer, the high speed decanter centrifuge is very important for the LGS separation.

Video:GN Vertical Cuttings Dryer for water based mud drilling waste Management

GN factory produced mud cleaners all over the country in all oil and gas fields. Overall, this Decanter Centrifuge with large-displacement, high pressure, less wearing parts, easy maintenance, low weight and small size, a series of advantages, is adapted to the needs of modern Jet drilling technology a good device. In the last few years, GN technicians of the company for the use of this type of mud cleaner has done some research work. Also found some problems, worth designing and manufacturing units and user attention.

Mud cleaners, widely used in the construction of water projects, sending smoke fiber-containing mud, stones and other impurities. Ordinary mud cleaners, high energy consumption, low efficiency, overcurrent short service life and maintenance disassemble frequently. Therefore, preparation of high effective Grout Cleaner is imperative. According to the features of mud cleaner, combined with NL100-118 design of centrifugal mud pump and explore its hydraulic design method, key parts of the manufacturing process, sealing joints, such as selection of material. Design parameters are: flow rate: 160 m3/h; Head: 18m; Efficiency: 68%; Speed: 146 or/MSN; Number of leaves: 3; Impeller blade streamline imports a distorted involute shape.

LWF450x1000N Mud cleaner is really a center spead centrifuge along with sixty-M3 treating capability as well as 5-7 microns splitting up. This particular shale shaker is extremely popular depending on it’s broad programs as well as discounted. However for many ALL OF US customers they’ll select a higher pace design or even variable spead centrifuge. All of us simply obtained four models associated with higher pace centrifuge final 30 days as well as additional solids manage tools.

Besides Mud cleaner, GN additionally produce shale shaker, dirt solution, desander & desilter, centrifugal pump motor, dirt agitators, dirt container, aircraft dirt machine, and so on. GN additionally produce the entire type of solids manage program in addition to little dirt program with regard to HDD CBM as well as gemstone drilling. Visit here (http://www.gnsolidsamerica.com/company-profile.html)

Drilling mud types

There mainly 3 types of drilling mud for drilling rig system: Oil based mud (OBM), water based mud (WBM) and Synthetic based mud. According to different drilling rig and different depth, suitable drilling mud type will be used.

WBM (water based mud) is the most common drilling mud type. Most widely be used worldwide and its relative lower cost and lower pollution.

OBM (Oil based mud) is mainly used for very deep drilling and the difficult depth drilling rigs. OBM cost higher and have a big pollution to environment.

SBM (Synthetic mud) is used as the alternative of OBM. SBM drilling waste is relative easy to be treated. It has a lower pollution. At offshore rigs, the SBM drilling waste can be discharged directly to the sea. But it is not stable under high temperature. It is more difficult to get but the total cost lower then OBM and WBM.

Cuttings dryer machine for OBM and WBM

Cuttings dryer used for Oil based mud (OBM) and Waste based mud (WBM) is different. Normally, high G dryer shaker is used for water based mud (WBM), vertical cuttings dryer is used for oil based mud (OBM) and Synthetic based mud (SBM). But a higher standard vertical cuttings dryer can treat all the 3 types of drilling mud cuttings: OBM, WBM and SBM. It request a high standard of manufacturer. Few company can make it.

Top brand manufacturer for drilling mud cuttings management

1) CSI

2) GN Solids Control