Mar 05

The shale shaker is the first stage of solids control equipment in drilling mud purification system. It can remove cuttings above 75 μm brought from the drilling well to leave the liquid with smaller particles into the tanks below, which will flow into next grade solids control equipment for further treatment.

The economy of GN Solids Linear Motion Drilling Mud Shale Shaker

GN Solids drilling fluid linear motion shale shaker is especially effective while drilling top-hole sections where heavy and high-volume solids are usually encountered. In these intervals, drilling shale shakers may generate powerful G-forces and its effective vibrating motion can quickly remove the dense solids from screens and particles from wells.

linear motion drilling mud shale shaker

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written by GN solids Control \\ tags: , , , ,

Feb 27

GN Solids is professional manufacturer for complete sets of drilling mud separation and recycling equipment. The conventional equipment like shale shaker, mud cleaner, desander, desilter, vacuum degasser, decanter centrifuge, mud agitator, mud gun, centrifugal pump, screw pump, etc. Here, let’s learn more about desander and desilter.

1. The general installation type and function of desander and desilter

Desander and desilter are solids control equipment with a set of hydrocyclones that separate sand and silt from the drilling mud used on drilling rigs.

They can be installed separately: Desander is installed on top of the mud tank following shale shaker and vacuum degasser, but before the desilter. Desilter is installed on top of the mud tank following Desander. They also can be installed completely: in this case, they are installed on one deck shaker and called mud cleaner or mud conditioner.

Desander removes the abrasive solids from drilling mud which cannot be removed by shale shakers. Normally the solids diameter for desander to be separated would be 45~74μm, and 15~44μm for desilter

desilter

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written by GN solids Control \\ tags: , , , ,

Jul 28

See the photo on the right, it is a mud circulation system with mud gas separator, in oil drilling solids control system, the 1st phase cleaning equipments of mud circulation system is shale shaker, which is fed the mud from high pressure manifold, the mud gas separator is fed mud from the chock manifold. When much of harmful gas is found during drilling, they close the valve to stop feeding the shale shaker, and open the valve to feed to mud gas separator, and use hundreds of exhaust pipe to transfer the harmful gas from mud gas separator to a place far from well head, and use flare ignition device to burn it. Mud gas separator is not a part of solids control system, GN can manufacture both of them, so we put them together for your convenience.

Mud circulation system with mud gas separator

Mud circulation system with mud gas separator

Mud circulation system is also called mud cleaning system, mud recycling system, solids control system, Usually if a mud circulation system with mud gas separator, it is usually oil & gas drilling or geothermal, it can not be HDD or water well drilling. Mud gas separator is horizontally installed on the skid with the chock manifold on it together, it is easy for transportation.

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written by GN solids Control \\ tags: , , , , , ,

May 22

As a part of rig package, mud system is a separate but an essential part, the handling of drilling fluids can save huge cost of drilling. In the early oil industry open earthen pits were used as settling area to separate solids and mud thereby acting as a solids control equipment.

mud system for a rig

mud system for a rig

Now, with the stringent environmental regulations and high mud costs, the economics of an effective mud system come into consideration. Different solids control companies introduce zero-discharge systems, closed-loop systems, “quick move” technology, screening technology, disposal options etc. No reserve-mud pit is used in a truly closed mud system. Mud is continually processed primarily by mechanical means, such as screening, hydrocyclone and centrifuging to remove solids initially. A second stage to remove colloidal solids is by wastewater cleanup techniques.

Major components of a mud system, including:

Mud gas separator, flare ignition device

Shale shaker, mud cleaner(or desander, desilter), vacuum degasser, decanter centrifuge , centrifugal pump, mud hopper,  mud agitator, mud gun, mud tank and others, such as cutting dryer, screw auger, mud cooling unit,etc.

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written by GN solids Control \\ tags: , , , , , , , , , ,

Jan 25

Closed loop drilling fluids system (sometimes referred to as closed mud or pitless system)are system which do not need mud pits, which can greatly reduce or eliminate the discharge of toxic drilling wastes on site.

What mud systems need mud pits?

closed loop drilling fluids system

closed loop drilling fluids system

1 HDD  mud system need mud pits, the drilling mud flow to mud pit, and the slurry pump installed into the mud pit transfer the mud to HDD mud cleaning system, and the processed mud is pumped to the rig again.

2 At a typical oil & gas drilling site, drilling fluids are circulated through the wellbore, then the fluids and drill cuttings are deposited in a reserve pit dug near well. This pit is used to hold used drilling fluids and wastes. There are many potential problems from pits — leaky liners and overflows can lead to soil and water contamination, pits can produce odors and toxic air contaminants, and pits can be a hazard for birds and wildlife.

What is closed loop drilling fluids system?

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written by GN solids Control \\ tags: , , , , ,

Jan 03

GN solids control mud system can be used for both oil & gas drilling and water well drilling. Water wellis an excavation or structure created in the ground by drilling to access groundwater in underground aquifers. Most shallow well drilling machines are mounted on large trucks, trailers, or tracked vehicle carriages. Water wells typically range from 3 to 18 m deep, but in some areas can go deeper than 900 m.

GN200gpm trailer mounted mud system for water well drilling

GN200gpm trailer mounted mud system for water well drilling

Most of the water well drilling rig is trailer mounted or truck mounted, for convenient transportation from one place to another. Some contractors do not process the used mud from water well drilling, but recently there are more strict laws for environment protection, they have to search for small mud recycling system to complete the job. They prefer trailer mounted mud system, GN 200gpm trailer mounted mud recycling system is widely used for water well drilling. Total transportation dimension is 5500x2300x4000mm( including the trailer height), it meets the transportation limit in most of the countries in the world( you do not need to remove anything when transport in domestic). You only need to remove the mud cleaner and shale shaker from the tank, then I can fit for 40feet standard container.

GN200gpm trailer mounted mud system including:

GNZS752 shale shaker 1set

GNZJ752 mud cleaner 1 set

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written by GN solids Control \\ tags: , , , , , , , , , ,

Sep 14

GN designed centrifuge mud tank for oilfield and dredging project, with 1 unit of GNLW553VFD decanter centrifuge(or other model available) and Nemo pump to feed the centrifuge, the centrifuge tank is divided into 2 compartment, the mud after treated by shale shaker, desander/desilter flow or be pumped to compartment 1, then Nemo pumppumped it from the compartment 1 to the centrifuge for processing, the clean drilling mud dropped into compartment 2, which can be pumped to other application or flow to anywhere required.

centrifuge mud tank

centrifuge mud tank

In oilfield application, sometimes mud hopper unit also installed on centrifuge mud tank, the mud which will be feed to centrifuge is with solids smaller than 20 microns, it has been separated by desilter cone. After treated by decanter centrifuge, the max solids remained in the drilling fluids is smaller than 5 microns, it is called “clean mud”. The clean mud may be weighted in pill tank/compartment and mixed by mud mixing hopper & mixing pump.

In Dredging project, centrifuge mud tank is applied after dredging slurry separation system, after treated by the desander ( or sometimes desilter), the solids remained in the slurry may be too fine to be separated out by the centrifuge, so you need a flocculation tank before centrifuge mud tank. After flocculation, the mud is concentrate so It is easy for centrifuge to separate it, this is for better performance. So you have to use a positive displacement pump to pump the flocculated mud to centrifuge, otherwise the centrifugal pump will break it off. Sometimes filter press will replace the centrifuge, but efficiency of filter press is not so dissatisfied, so people use large treating capacity centrifuge instead.

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written by GN solids Control \\ tags: , , , , , , , , , , ,

Aug 07

GN has 3 complete of mud systemfor sale now. They are in stock in our Beijing Warehouse. Originally there are 5 sets of complete rig package for drilling site in Iraq, and we already shipped the 2 of them to Iraq. Because of the bad situation in Iraq, the project is delayed, we will sell the left 3 sets of mud system with 30% discount.

mud system for sale

mud system for sale

 If you are interested, welcome to visit GN, we will show you the mud system in our yard.

Applications for the mud tanks:

1000HP/1500HP oil rig complete mud system with Derrick Solids Control or GN Solids Control Equipments.

Specifications of the Mud Tanks System

1 Mud tanks:

7x400BBL Mud Tank for one set

3 sets total capacity=8400BBL

Dimension(LxWxH):1200x2900x2300mm

Including Shaker Tank, suction tank, storage tanks, mixing tanks completed with agitators, mud guns, centrifugal pumps.

2 Solids control equipments for one set:

Option 1:

3x Linear Motion Shale Shaker Derrick FLC2000

1xVacuum Degasser Derrick 1200

1xMud Cleaner with 3x10inch desander and 16x4inch desilter, underflow linear motion shaker Derrick FLC2000

2xDecanter Centrifuge Derrick DE1000

Option 2:

3x Linear Motion Shale Shaker GNZS703

1xVacuum Degasser GNCQ270

1xMud Cleaner with 3x10inch desander and 16x4inch desilter, underflow linear motion shaker GNZJ703-3S16N

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written by GN solids Control \\ tags: , , , , , , , , , , , ,

Jun 15

GN designed and produce a complete set of 10000feet drilling mud system, it is around 3000m dept and horse power 750HP. It including 4 mud tanks,recycling tank, active tank, mixing tank, mixing skid. It is a customized system according to client’s isea.

Technical specification of 10000 feet drilling mud system:

10000ft drilling mud system

10000ft drilling mud system

1)      Recycling Tank (40feet Container Size) with 2 GNPS703 Shale Shaker,1GNZJ703 Mud Cleaner with 2x10inch Desander cones,12x4inch Desilter cones,and as well as desander desilter feeding centrifugal pump SB8x6-13(55Kw).And one trip pump for the trip compartment.

2)      Active Tank(40Feet Container Size) with Mud Agitators and Mud Guns.

3)      Mixing Skid(20feet container size) with 2 mud hopper, One SB8x6-13(55KW) Centrifugal Pump and one shear pump.

4)      Mixing Tank(40feet container size) with one SB8x6-13(55Kw) mixing pump and one mud hopper, completed with mud agitators and mud guns.

Usually clients will buy 10000ft drilling rig from USA, so the electricity is 460V60HZ, 480V/60HZ, GN drilling mud system can meet their electricity rate. And our explosion proof mark of the electric control system is class1, div 1. As a part of the land rig of 10000ft, our drilling mud system including pipelines from shale shaker inlet to outlet of mud pump charging pump, including mixing pipeline, water pipeline, mud gun pipeline, overflow line, suction line,etc. Also we provide mud gas separator installed on the trip tank( if the mud system has a separate trip tank.) In this 10000 feet drilling mud system, their trip tank is in the 1st recycling tank, they have a trip compartment with trip pump.

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written by GN solids Control \\ tags: , , , , , , , , , , , , , ,

Apr 04

Geotechnical drilling is drilling which is often related to the construction of a structure such as a building or an oil rig. It can be part of the construction process as well as part of the investigation process conducted on site before the structure is built.

drilling fluids processing system

drilling fluids processing system

 It includes drilling to remove rock and soil samples, along with drilling to evaluate soil stability and other topics of interest. As part of the construction process, geotechnical drilling includes drilling to prepare for foundations, caissons, and various supports. Drilling of this kind is overseen by an engineer who confirms the placement of the drill and makes sure that the drilling is conducted properly.

What is geotechnical investigation?

Before the construction starts it is good to know your conditions.Investigating the soil is a good way to map the challenges ahead.

Commonly used methods

Depending on ground conditions and required drilling depth, core drilling or RC drilling can be the methods of choice. SPT or Standard Penetration Tests are performed by recording the number of hammer blows needed to drive up a sample tube to certain depth in to the ground. This would indicate the relative density of the soil.

 How to process the mud produced by Geotechnical drilling?

The mud produced by Geotechnical drilling is very less, it depends on the length and the core diameter. Usually its treating capacity is only 5m3/h or less, but it can not be discharge away directly to the environment because of strict environment protection regulation. If you have such problem, pls contact with GN solids control.

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