№ 4,
2014
Download the article
Calculation of main indicators of self-oriented bottomhole assembly provided by static indetermination
Scientific-Research Institute «Geotechnological probems of oil, gas and chemistry», AZ1010, Azerbaijan, Baku, D.Aliyeva str., 227
Summary
A-
A+
The article describes the technical solutions proposed for the implementation stage of hole with no kickoff oriented oblique bore during drilling under water shut curved column. This technology has provided an opportunity to use the entire range of drilling from the mouth to the bottom non-oriented BHA.
Without the need for application-oriented kickoff inclined wellbore due to the fact that the boreholes are shown after leaving water shutoff columns loose rocks washouts during drilling, and broadened, due to lack of support reaction of the borehole wall in the efficiency of their conventional-oriented and non-oriented BHA plummets .
Studies in solving this problem led to the conclusion that in these conditions the greatest effect on the non-orientable BHA can be obtained by using the principle of the float ascent BHA with the property itself orientation in a given direction.
In this connection there was the need to improve the design and simulation of a non-orientable BHA on a new effective way of functioning, capable of self-cater in these conditions in a given azimuth direction.