Saudi Arabian Oil Company

Ahmed Jaafari

Krzysztof Karol Machocki

Ismail Adebiyi

Mohammed Y Al Daif

Testing a fluid in a wellbore with a well testing tool carried on a well testing string includes activating a first selectively controllable longitudinal valve and a second selectively controllable longitudinal valve with a communication module. A first and second packer of the well testing tool engages an inner wall of the wellbore to define a zone of interest between the first packer and the second packer. The communication module further activates a selectively controllable radial valve positioned between the first packer and the second packer to flow fluid between the central bore and the annulus formed between the first packer and the second packer, a fluid sample flows from the annulus between the first packer and the second packer through the testing string to a tophole facility.

Straddle packer testing system

A subterranean formation is drilled using a drill bit of a bottomhole assembly to form a wellbore in the subterranean formation. The bottomhole assembly includes a storage chamber and sidewall coring bits. While the bottomhole assembly is disposed within the wellbore, a sidewall of the wellbore is cut into using the sidewall coring bits to obtain sidewall core samples. While cutting into the sidewall of the wellbore using the sidewall coring bits, fluid is circulated through the wellbore. The sidewall core samples are received within the storage chamber.

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Al Khobar, Saudi Arabia

Ahmed Jaafari