This gas flow and coincident significant increase in drilling rate
through the Wagina sandstone suggest impressive permeability and porosity at approximately 4,200m was not seen in in WE-1.
This method with the characteristics of high drilling rate
and efficiency can realize the grouting in a drilling process and has a good development prospect.
It can therefore be concluded that the increase of spindle speed within a certain range will not lower the overall wear resistance or accelerate the average wear rate of the bit significantly, but can increase the drilling rate
Meanwhile, the drilling time-curve shows the average drilling rate
is larger than 13 min/m.
In 2Q16, RN-Uvatneftegaz set a new record in the commercial drilling rate
in main-land Russia, where a 2,639 m deep well was drilled in 6.5 days.
Sistani, "Determining Bourgoyne and Young model coefficients using genetic algorithm to predict drilling rate
," Journal of Applied Sciences, vol.
It will evolve gradually over time, following changes in the drilling rate
, and will only respond to shocks with a significant lag.
Increasing the drilling rate
could decrease the exposed time of the shale formation, which is useful for the wellbore stability.
Here are Hughes' calculations if the current drilling rate
were maintained: 1,500 new wells per year leading to a tripling in the number of operating wells, if the EIA's estimate of remaining productive locations is accepted.
Drilling wells faster is achieved by reducing non-productive time as well as by increasing the drilling rate
of penetration, and our Drilling Group is making progress in both areas.
The initial program will be on 400 metre-spaced holes, which on past experience of a drilling rate
of around 10 holes per day should see the first program completed by end of April.