ENSURING RELIABILITY AND ROI ACROSS SEVEN WELLS

Oil operators need to continually improve drilling performance, as well as derive financial advantage.

Challenge

Oil operators need to continually improve drilling performance, as well as derive financial advantage. An area to focus on to make this a possibility is reliability; a constant issue for drilling operators using conventional mud motor tools.

It’s a challenge a recent client in West Texas was experiencing as it prepared to drill seven wells in 21 weeks. It wanted to meet the challenge head on and find a tool that was reliable, could drill faster than conventional tools and would be cost effective.

Solutions

It decided on a rotary steerable tool and approached D-Tech, to add value by providing drilling that was faster, smoother and straighter with a greater return on investment.

D-Tech deployed the RST675. The simple design, continual development and rigorous testing allows the tool to be more reliable and cost effective; while running smoother to reduce the impact on the components.

In order to increase the rate of penetration and stick-slip a 7/8 3.0 stage 0.16 rev/gal motor was run between the rotary steerable and the MWD tool.

To add value to the operation a six blade, short gauge bit with a TFA of 0.77 in2 was recommended from previous experience of drilling shale plays and picked up by the operator.

Results

The outcome met the objective. Over the seven wellbores drilled, there were zero failures with an average half a day drilling per well being saved.

In addition, the quicker pick up of the rotary steerable tool saved additional time and increased the productivity of the work force.