As a very important role,Drilling fluids is considered as the blood in the process of oil drilling.Therefore,High demands for drilling fluids, How to choose drilling fluids suppliers? There are mainly four aspects:
Drilling cycle requirements
Drilling cycles on the requirement of drilling fluids is Low viscosity,
Larger sand carrying capacity, Low Start the pump pressure,Good lubricating performance,Low friction,Fewer solid particles.
To keep the borehole stable
We must keep balance between Drill formations with the column pressure of drilling fluids and formation pressure.Besaids drilling fluids density must keep stable.in the process of oil well drilling,stable drilling fluids density can contribute to balance between the pressure of the drilling fluids column and oil and gas pressure.It is the important performance demand that the drilling fluids can overcome the unstable layer.For example, shale swelling can caused borehole shrinkage,When conglomerate, volcanic rocks and water mixed together， oil well can be collapse.That is to say, diffirent layer condition requires different kind of drilling fluids.
Requirement protection of hydrocarbon reservoir
After drilling of hydrocarbon reservoir,the drilling fluids will flow into the reservoir.To prevent drilling fluids to contaminate reservoir,we need the drilling fluids of low solid content and filtrate hydration.
Protection of the environment and ecology
The drilling fluids contains: crude oil, diesel and all kinds of oil and a lot of chemical treatment.In order to prevent drilling fluids to cause the environment and ecology,We should use harmless and non-toxic drilling fluids.
