This technology is a method and apparatus that enables downhole coring while simultaneously receiving logging-while-drilling (LWD) tool data.
Current methods to collect data regarding underground formations involve the collection of geophysical and geological data as a well is being drilled, referred to as LWD measurements. In order to obtain LWD data, two holes need to be drilled, making this method extremely time consuming. An additional disadvantage is the possible detrimental effect on the data correlation, as correlating a core sample with formation property data assumes that the data and sample are obtained from same location or even the same hole. Previously, it has not been possible to continuously collect large diameter core and in situ logging data simultaneously.
This technology describes a device that combines the coring and logging processes, enabling efficient characterization of sedimentation. It consists of both a core collar equipped with logging-while-drilling tools, and a retrievable core barrel, which receives core from a borehole to be sent to the surface for analysis. This combination allows for simultaneous logging and coring, and has the potential to save time and energy during the oil and gas exploration process.
This technology has been validated using an ocean drilling test.
IR M04-010
Licensing Contact: Dovina Qu
