HDD mud recycling system

This week GN solids control shipped 2 sets of HDD mud recycling & mixing system to India client for their HDD projects. This is not the first order from the HDD contractor, they bought the 350gpm mud recycling system and 500 gpm mud recycling system several years ago for their Vermeer rig. The technical configuration is as below:


One mud tank 9000x2300x2150mm which is customized design size to meet their storage capacity requirement. For compact design and better mud cleaning performance, we installed the double deck shale shaker with desilter cones to meet the client’s capacity requirement. A centrifugal pump as feeding pump of the desilter cone, one centrifugal pump as mixing pump for the venturi hopper. The mud agitator and mud gun installed on the mud tank for agitating the drilling mud and prevent the solids from silting. An extra submersible slurry pump is equipped as the feeding pump of the mud recycling system from the mud pit.
Features of the 2 sets of mud recycling system:
1) Compact design with the biggest storage capacity as per the client’s requirement
2) Container loading size for convenient transportation and cheaper sea freight cost
3) Mechanical seal centrifugal pump, the impeller and pump casing material is made from hard ductile iron alloy, increased abrasion resistant capability.


4) Double deck shale shaker with desilter cone for 2 phase cleaning and increase the reating capacity.
5) Pretensioned shaker screens with composite material frame for longer working life and better separation performance.
6) Explosion proof electric control system for better rain proof, sun proof and dust proof.

This week GN solids control shipped one unit of HDD mud recycling system and dewatering unit to Sinopec project. HDD is one of our major applications, GN equipments 4 major applications including oil & gas industry solids control system and drilling waste management system and oil sludge separation system, HDD & CBM industry mud recycling system, Piling & TBM desander unit, Industry waste water treatment.


The technical configuration is as below:
1) 3 phase cleaning mud recycling system mud tank, with containerized frame for convenient transportation, the user can put the mud tank and the frame with equipments on the trailer and move to another site from one site.
2) 1 unit of GNZS703F shale shaker as the first phase cleaning equipment, equipped with 3pcs of durable composite material shaker screens with customized API mesh screen. We produce OEM composite material shaker screens from API 20 to API 325 as per client’s requirement.


3) 1 unit of GNZJ703F-1S8N mud cleaner, with under flow shaker, desander cone and desilter cone combination unit. Equipped with 2 units of centrifugal pumps as feeding pump of desilter cone and desander cone.
When the drilling fluids temperature is over 70 degree, we will use special material hydrocyclones for longer working life.
4) Dewatering system with same dimension mud tank
5) Decanter centrifuge GNLW363C-VFD is the 4th stage cleaning to separate fine solids smaller than 15 microns. After several years working, more and more fine solids are accumulated in the tank bottom, these fine solids can not be separated by the desilter cone, then high speed decanter centrifuge is required to clean the drilling fluids, otherwise it can not be reused for drilling again.