TRANSVERSE SIDEWALL CORING

摘要

A system and method of gathering sample cores from a subterranean formation with coring bit assemblies, where each of the coring bit assemblies retain a sample core within. Included is a container equipped with compartments for individual storage of each coring bit assembly and coring sample, so that each sample can be stored at the pressure at which it was obtained. The coring bit assemblies can be sequentially inserted into the container after being used to collect its sample core. In this instance, scaling devices, such as o-ring seals or a coining surface, are provided in the container. Bach coring bit assembly can also be disposed in a chamber, that is selectively scaled after the coring bit assembly gathers its coring sample.

主权项

1. A system for obtaining core samples from a sidewall of a wellbore comprising:
a housing; spaces in the housing; pressure barriers selectively disposed between the spaces so that a pressure in each of the spaces is maintained at a particular value; and a coring bit assembly disposed in each one of the spaces and each comprising,
a sleeve that selectively receives a one of the core samples, anda cutting head on an end of the sleeve that selectively is projected from the housing and into cutting engagement with the sidewall.