Key role of drilling fluid in rotary drilling, Civil Engineering

Assignment Help:

Question

What is key role of drilling fluid in rotary drilling in site search?


Answer

Drill fluid in rotating serves two main reasons.

(i) Facilitate rotation of drilling tube during rotary drilling.

(ii) Do something as a cooling agent to cool down heat generated during drilling operation.

Traditionally, water is in general employed as drilling fluid. Yet, it suffers from following problems-

(i) It affects constancy of nearby ground with introduction of water into borehole

(ii) It affects excellence of instance by changing water content of soil samples collected from borehole or drillhole.

 

 


Related Discussions:- Key role of drilling fluid in rotary drilling

What is the meaning of elastic shortening of concrete, What is the meaning ...

What is the meaning of Elastic Shortening of Concrete At the transfer stage, compressive prestressing force is transferred to the concrete. Due to this compressive force, concr

Bearings, what is the difference between whole circle bearing and reduced b...

what is the difference between whole circle bearing and reduced bearing?

Uncompacted bedding for concrete pipes, Uncompacted bedding for concrete pi...

Uncompacted bedding for concrete pipes In the middle third of the base of precast concrete pipes, bedding layers are suggested to be left Uncompacted since it helps to decreas

Properties of stones, Properties of Stones The following properties of ...

Properties of Stones The following properties of the stones should betake into account before choosing them for engineering works: Structure: The structure of the stone ca

State the design process of prestressed concrete, State the Design process ...

State the Design process of Prestressed Concrete Most of the times, the design process is an interactive and trial procedure in which the cycle of analysis - design - analysis

Roads in hilly areas, Roads in Hilly Areas: (a)        The alignment s...

Roads in Hilly Areas: (a)        The alignment selected should attain the changes in elevation by adopting the ruling gradient to the maximum length. Limiting and exceptional

Wet mix Macadam, Test required before laying or after laying.

Test required before laying or after laying.

Maintenance of steel bearings, Q. Maintenance of steel bearings? Cleani...

Q. Maintenance of steel bearings? Cleaning and greasing of bearings is one of the important maintenance works to avoid premature failure of bearings and reduce recurring heavy

Surveying, Distance ABC was measured with a 30m. Chain tested and found to ...

Distance ABC was measured with a 30m. Chain tested and found to be correct in the beginning of the work .after measuring AB=1.2 km chain was found to be 10 cm. To long chaining was

State the natural frequency of a machine foundation, State the natural freq...

State the natural frequency of a machine foundation of base area 2m × 2m and weight 150 kN, suppose that the soil mass participating in the vibration is 20% of the weight of founda

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