There are
two drilling techniques used in the petroleum industry, the cable tool technique,
and rotary drilling technique, second technique is the most common method that
performs a rotary grinding action. Only these two techniques applied in the
drilling phase till date. The rotary drilling technique also proved successfully,
by applying laser technology in this drilling, which is a modern technology.
Cable tool drilling is the first method of these two techniques. Hole boring is achieved by repeatedly lifting and dropping a heavy string of drilling tool into the bore hole with the bit crushing the rocks into small fragments. In this method, more result was not achieved with this because it is too much time consuming, has a very less penetration rate, blowout preventers were not easily adapted and it is almost limited to drilling consolidated formations. How-ever, at the turn of the 20th century, the rotary drilling technique was introduced and it immediately replaced the cable tool method from operation. The major difference between both is that with the cable tool, drilling has to be stopped in other for cuttings to be removed from the hole, whereas with the rotary drilling technique, a mud circulates throughout the system and carries away edges from the whole whilst drilling continuously.
Cable tool drilling is the first method of these two techniques. Hole boring is achieved by repeatedly lifting and dropping a heavy string of drilling tool into the bore hole with the bit crushing the rocks into small fragments. In this method, more result was not achieved with this because it is too much time consuming, has a very less penetration rate, blowout preventers were not easily adapted and it is almost limited to drilling consolidated formations. How-ever, at the turn of the 20th century, the rotary drilling technique was introduced and it immediately replaced the cable tool method from operation. The major difference between both is that with the cable tool, drilling has to be stopped in other for cuttings to be removed from the hole, whereas with the rotary drilling technique, a mud circulates throughout the system and carries away edges from the whole whilst drilling continuously.
Rotary technique method is most like a common hand held drill, rotating drill bit with applied force to drill down the earth crust. The prime mover, hoisting equipment, rotating equipment, circulating equipment and blowout preventers complement each other to give the rotary technique is better nowadays for drilling. These components make a complicated looking rotary drilling method is very easy method. Whereas the cable tool method; it can drill through most rock formations, has a high penetration rate and can drill deeper wells, blowout preventers are easily adapted and can drill directionally as well.
To know
more information and share about your research on drilling techniques join us
at our upcoming Petroleum Refinery 2018 conference.
For more sessions please
visit:
https://petroleumrefinery.conferenceseries.com/call-for-abstracts.php
Alessia
Lee
Petroleum
Refinery 2018 | Program Manager
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