Tag Archives: mud tank

1500HP Drilling Rig Solids Control System for Africa Project

As one of the leading solids control manufacturers in the world, the drilling mud solids control system is always one of GN’s core products. It is obvious that GN’s name is also after the Solids Control.
Since year 2010, GN became the first solids control manufacturer in China as an API certified manufacturer in fields of solids control, has GN delivered its products to more than 70 countries in the world, including the solids control equipment, solids control systems and shaker screens. This time, just recently, GN manufactured a solids control system for a drilling site in Africa. This is a complete system combined by following equipment:

1.Mud tanks. This order is for 2 sets of solids control systems for 2 sets of 1500HP drilling rig, which is a middle sized oil drilling rig with shale shaker tanks, intermediate tanks, suction tanks, mixing tanks, reserve tanks and trip tanks.

2.All related solids control equipment for separation. As is known to all, in a complete mud solids control system, there are 4 steps for solids control and 5 steps for separation, and the 4 is counted among the 5 which are shale shaker, desander cyclones, desilter cyclones and decanter centrifuge. And the 5th separation equipment is the degasser. All of them are involved in this solids control system and all equipment are manufactured by GN Solids Control.

3.All auxiliary equipment for transferring the drilling mud. Besides the separation equipment, GN also provides the equipment for transferring and other necessary functions in a complete solids control system, such as mud agitators, mud guns, and centrifugal pumps for feeding the cyclones and for jet mixing.

Each year, GN makes tens of such mud recycling systems for drilling contractors, drilling rig manufacturers, oil service companies and drilling mud plants owners. GN equipment are also sold solo without mud tanks, for example, annually, GN makes and sell hundreds of shale shakers and decanter centrifuges and tens of vertical cuttings dryers.

Complete System for Both Mud Recovery and Slurry Treatment

As leading manufacturer for drilling mud solids control and drilling sludge treatment equipment and a professional solution provider, GN Solids Control has designed and put into reality a complete system for both mud recovery and slurry treatment which is suitable for for mud preparation, mud recovery and clarification, mud weight control, mud storage until slurry treatment in horizontal drilling and pipe jacking industries. This system is combined by following components:

1. Mud tanks: This systme is equipped by several mud tank skids with effective tank volume≥25m³. They are suitable for transportatiaon inside containers and being lifted at jobsite.

2. Shale shakers. A single shale shaker’s designed capacity is larger than 120m³/h, with vibrating motors with total power 3.44KW. Each system has 2 or 3 shale shakers depended by the requested capacity. The shakers are well sealed and easy for changing screens and spare parts. During transportation, the shakers are to be removed from tank and to be shipped inside container.

3. Mud cleaner: Mud cleaner is a combination of both desander and desilter. The capacity of desander and desilter are in complianc with the total system’s request and achieved by certain quantity of cyclones. Both desander and desilter share the same drying screen on below, with screen area of 2.63 square meters. Total power 3.44kw.
4. Decanter centrifuge: there is a big bowl decanter centrifuge located after the desilter cones. The cutting point of decanter centrifuge is 2 to 5 microns, which is suitable for remove the fine particles from the drilling mud. In this system, there are big bowl centrifuges adopted, with 18 or 22 inch bowl diameter.

5. Chemical dosing system: in case there are extra fine particles in the drilling mud, we have to invite a chemical dosing system with polymer injected into the drilling fluids in order to flocculate the extra particles to be within the centrifuge’s treating range. The chemical dosing system is designed inside a 20 ft container for easy transportation and layout.

6. Jet mud mixing unit: a jet mud mixing unit is used in this system for prepare new mud by adding drilling chemicals into the clarified driling mud.

Welcome to consult with GN team for more information.

How to Choose Suitable Mud Tank Volume for Diamond Core Drilling and Geothermal Drillings

As is common sense for all kinds of drillings: 1, Drilling mud should be invited into drilling procedure, 2. The drilling mud should be treated after the drilling procedure, considering both economy reason and environment protection.
Well, do you know how to choose a suitable tank volume for such diamond core drilling and geothermal drillings? Here we have some tips and useful sequences to follow:

1. The required mud flow should be determined according to the drilling structure and drilling tool type;
2. Select the appropriate mud pump for the core drilling or geothermal drilling rigs.
3. Fully take consideration of required drilling rate and the time needed to prepare the mud.
4. Take into consideration of the solids control system (the mud separation equipment)’s recycling speed, including the rock powder carrying rate. This factor does affect the needed mud tank volume quite a lot.
5. Also consider the normal circulating mud volume, cross slurry distribution capacity and reserve mud capacity;
6. On the premise of meeting all above mentioned factors, try to select a smaller reserve coefficient, in order to reduce the amount of mud, which will also reduce the treatment capacity of waste mud.

What solids control equipment is always needed in such drilling projects?
A diamond core boring or geothermal drilling always need a comparably smaller mud recycling system comparing with other drilling like oil and gas or even HDD. Such mud systems are always more compact, with only necessary and efficient equipment.
A shale shaker is a must, cause shale shaker always removes the most solids from the drilling cuttings. In order to save space without sacrificing separating capacity, operators prefer to use a double deck shale shaker at this stage. And after the shale shaker, there should be a desilter and a decanter centrifuge, among which, the desilter is optional while centrifuge is preferred.
Welcome to contact GN Solids Control engineer team for a more complete solution.