Difference between direct circulation and reverse drilling, Civil Engineering

Assignment Help:

Question

What is main difference between direct circulation drilling and reverse circulation drilling?


Answer

In straight circulation drilling and reverse circulation drilling, major difference in drilling system is related to direction of movement of drilling fluid. In direct circulation drilling, drilling fluid is circulated from drill stem and then flows up the annulus between outside of drill stem and borehole wall. Drilling fluid that carries drill cuttings flows to surface and subsequent settlement pits. Pumps are working to lift cuttings free fluid back to drill stem.

 


Related Discussions:- Difference between direct circulation and reverse drilling

Derive, Derived condition of economic span of bridge

Derived condition of economic span of bridge

Explain shear stiffness in elastomeric bearing, Q. Explain Shear stiffness ...

Q. Explain Shear stiffness in elastomeric bearing? For elastomeric bearing shear stiffness is a significant parameter for design since it influences the force transfer between

Method of observation by satellite, Q. Method of observation by satellite? ...

Q. Method of observation by satellite? The difference between a photographs and imageries needs to be understood first. A photograph covers a specific area within its view and

Consolidation settlement, The integration of strain over the depth is settl...

The integration of strain over the depth is settlement. The method of producing the settlement is non-recoverable when the intensity of stress is removed. Hence, a permanent reduc

Probable distribution function, The diameter of an electric cable, say X, i...

The diameter of an electric cable, say X, is assumed to be continous random variable with pdf;f(x)=6x(1-x), 0 b}.

Define the categories of corrosion of steel structures, Define the Categori...

Define the Categories of Corrosion of steel structures? Corrosion of steel structures can be classified as under: -   Atmospheric corrosion -   Underwater corrosion -

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd