Industry Article The Defining Series: Downhole Coring
Ground truth for calibration of well logs.
Complementing logging and wireline formation testing, sidewall coring is a faster, cost-effective alternative to conventional cores and avoids the ambiguity introduced by the depth uncertainty of drill cuttings.
Rotary sidewall cores are recovered with miniature diamond-tipped drill bits that preserve the rock pore structure when they cut a round plug of the formation directly from the borehole wall. Because rock integrity is maintained, a wealth of geological, geomechanical, and petrophysical data can be obtained through laboratory analysis of the sidewall cores.
Sidewall Coring Offerings
Sample volume more than 300% of previous-generation technology with core location confirmed by FMI formation microimager.
Retrieve up to 50 1.5-in-OD x 2.5-in-long sidewall core samples from a single trip.
The Schlumberger XL-Rock large-volume rotary sidewall-coring service closes the gap between core plugs from continuous conventional core and wireline-conveyed rotary sidewall cores.
Covers acquisition of high-quality data at the wellsite and its delivery within defined standards.