Ensures the integrity of the samples collected; analyzes, interprets and reports in the End of Well Report and enters within the formation evaluation log all information relating to the cutting samples, and informs the Client representatives. Is responsible for communicating to the Client representatives any information regarding primary well control and well integrity during well site operations as deducted from the data. Primary responsible for maintaining and analyzing the volume balance sheet during well site operations. Exercises their discretion and independent judgment to alert the Data Analyst of any discrepancies in the formation evaluation or gases analysis observed. Is a key person involved in the detection and monitoring of potential well control situations Ensures the design of an accurate and comprehensive formation evaluation log according to the Client's format. Is aware of, and respects all safety regulations and procedures, as specified by the Client, Drilling Operator, Geoservices or relevant safety authorities. Uses their experience and judgment to improve the service quality delivery and communicates to the Data Analyst all improvement opportunities. Interacts with other service companies' personnel and Client representatives at the well site, ensuring the prevention of events that may give rise to the wellbore insecurity. Provides technical advice and assistance in core recovery and core description. Shares with other well site personnel the responsibility for rigging up and rigging down the mud logging equipment. Keeps the confidentiality of the Client's well data. Manages and provides support, coaching and guidance to Sample Catchers. Performs other duties as assigned by direct supervisor. University Degree in Geology, Geological Applied Sciences, Earth Sciences or Applied Sciences required. Previous experience as a Mud Logger / Mud Logging Analyst is preferred however not essential if candidate is degree qualified in relevant discipline. Previous experience in field-work is a plus. Knowledge of Drilling Equipment and Techniques. Excellent Computer Skills. Must be eligible and able to obtain a Transport Worker Identification Credential (TWIC) card for work offshore. Candidates must be able to legally work and reside in the US, without sponsorship.