SHORT DISPLACEMENT ORIENTATION TECHNOLOGY

It’s a technology of directional well used in the straight well.Zhongyuan is a typical block faulted oilfield,so the horizontal displacement should be well controlled when drilling adjustment wells.When large displacement exists,down hole motor wiht bent sub should be used to turn a 180°orientation.The azimuth should be 3.5°-5°when orientation turning completed.Then works out the rate of inclination according to deviation angle and length of rest interval,and determines the most suitable BHA that could drill to the target zone.