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GNMS-1500D Slurry System for Pipe-Jacking Project

last week we shipped out one set slurry system  to Africa for pipe-jacking project. Pipe-jacking is one kind mature technology of municipal project. For some pipeline laying in city, which do not to dredging and cover a small area when process, and also reduce the pollution to environment, especially in downtown of city, this kind project will not affect traffic of city.

However , pipe-jacking project will also consume lots water to flush the solids, and cooling machine, which will generate large sludge. It is difficult to transport these sludge without dewatering. How to recycle the water for reuse, and drying solids to transport out with small cost. Both is always the issue the engineer need to considering. GN slurry system was specially developed for these kind project. Drying solids and recycling water. Our 1500D model slurry system includes the shale shaker, hydrocyclone , centrifugal pump. This system can separate slurry with 3 stages.

Firstly, the sludge will be feed on the bottom shaker, it can remove out the solids bigger than 800mm. At this stage ,partial big solids will separated out, and the liquid after treatment will down to the bottom tank. Secondly, the centrifugal pump will suck the liquid into hydrocyclone. Under the high speed rotational flow, the solids bigger than 80 um will down to the upper shaker. The upper shaker installed high mesh shaker screen .It can dewatering the solids again , and recycle the remain water as much as possible. same as stage 1,liquid go through shaker screen and down to bottom tank. When material inside hydrocyclone, the cleaned liquid will flow out form the upper of hydrocyclone, and recycled for reuse in project.

To convent client transport this unit to different job site, we built all equipment on one skid with mall cover area. This project capacity is 1500GPM. We are good at providing customized equipment for some specially project. From designing to manufacture ,GN provide the whole support, if you have demanded on these project, welcome to contact us.

Select Suitable Solids Control Equipment to Keep Drilling Mud Property

At the beginning of drilling history, people use clean water to dilute the solids content in drill mud. Sometimes, diluting drilling mud thorough adding water is good way and necessary , but for some high density drilling slurry , the dilution cost is very high. If this dilution costis used to purchase solid control equipment, the economic benefit will be better.

 One or more of the following technologies are used on site to remove the solid phase in the drilling fluid

 screening technology: shale shaker for drilling fluid, and strong water sensitive mud shale removal device;

Cyclone separation technology: desander and desilter;

Centrifugal separation technology: coarse mesh and sedimentation centrifuge;

Gravity sedimentation technology: sedimentation tank and dewatering device.

In general, these technologies can be accomplished by using separate equipment. However, in some cases, these equipment can be used in combination. For example, like the mud cleaner, it is to fix a hydrocyclone on the vibrating screen. Another important combination device is the drill cuttings dryer (also known as rotary shale shaker), which is a centrifuge equipped with a conical shale shaker, which can be used to separate the drilling cuttings in the drilling fluid to recover the drilling mud before treating the drilling cuttings. In addition, these devices help to improve the solid phase removal efficiency. For example, sometimes a vacuum or atmospheric degassing device (installed in front of the centrifuge, especially between the shale shaker and the desander) is installed to remove the gasbubbles in the drilling fluid that can cause the pump to evacuate and reduce the density of drilling fluid.

Select the suitable solids control equipment is economic way to keep the mud property, improve drilling efficiency and protect rig machine. GN Solids Control can provide all these equipment and also customized system. If your have demanded on these, welcome to contact us.

The Damage of Drill Cutting to Oil Well

As we all know there will be large drill cutting when drill well, especially in the petroleum drilling ,as long as the more drilling depth, the drilling mud is the most important thing decide if we can finish the drilling work, bad drilling mud will directly destroy the well and eve rig machine. How to remove out drill cutting is main job for solids control and guarantee the fluid property.

However, some remarks that drilling cuttings are beneficial to drilling fluid are wrong. He did not realize that cobalt cuttings have existing and potential harm to drilling fluid. Generally speaking, the phenomenon that drilling cuttings increase the solid content of drilling fluid will not appear soon. The harm has a certain process, and the economic impact can not be shown to us soon. Therefore, these people do not believe that the harm of drilling cuttings to cobalt well fluid can reach the extent of their actual damage. Drilling cuttings will increase the drilling cost, damage the reservoir and increase the cost of drilling fluid treatment. Therefore, drilling cuttings are related to the following special problems: (1) filtrate damages the reservoir; 2) Limited cobalt velocity (3) complex downhole; (4) Stuck drill; (5) Lost circulation (6) direct cost of drilling fluid; (7) Increased processing costs.

In the actual drilling work ,the drilling cutting may have more damage. Therefor use the good quality solids control equipment to remove out drilling cutting and make the good property drilling fluids is very important. GN Solids Control has manufacture solids control equipment for more than 15 years. We can provide the whole set mud system from mud mixer to the management of drilling cutting. Shale shaker ,mud cleaner, decanter centrifuge, mud agitator, mud jet mixer, and shear pump. We exported these equipment to more than 76 countries and served 2000 customers. If you have requirement to drilling fluid treatment, we will be pleased to share our experience.