Turbodrilling System Completes Long Horizontal Section in One Run, Saving 45 Days for Sinopec

Published: 09/10/2014

Concrete blue texture
 
Turbine with diamond-impregnated bit drills
The Neyrfor turbodrilling system provided exceptional toolface control, enabling the operator to complete the 763.7-m horizontal section in 15.84 days at an average ROP of 3.15 m/h.
Location
China, Asia
Details

China

Operator
Sinopec Group
 
Lithology
Sandstone and mudstone
 
Hole size
8 1/2 in
 
Depth in
5,031.3 m
 
Depth out
5,795 m
 
Depth-in inclination
87.1°
 
Depth-out inclination
87°
 
Average ROP
3.15 m/h
 
Pumping time
302.5 h
 
On-bottom drilling time
242.25 h

Background
Sinopec needed to drill an 81/2-in section of a highly deviated horizontal well in a sandstone and mudstone formation, from 5,031.3 m to 5,795-m TD.