Exxonmobil Upstream Research Company

Exxonmobil Research and Engineering Company

Vishwas Gupta

Jeffrey Roberts Bailey

Erika A O Biediger

Narasimha-Rao Venkata Bangaru

Mehmet Deniz Ertas

Lei Wang

Shankar Sundararaman

Krishnan Kumaran

Hyun-Woo Jin

Adnan Ozekcin

Hyunwoo Jin

Peng Xu

Jingbo Wang

Erika Ann Ooten Biediger

Swarupa Soma Bangaru, Legal Representative

William Curtis Elks

Steven F Sowers

William C Elks

Erika A Ooten Biediger

Deniz Ertas

Erika AO Biediger

Erika Biediger

Narasimha-Rao (deceased) Bangaru

William Elks

Erika A Biediger

Erika Ao Biediger

Methods and systems for controlling drilling operations include using a statistical model to identify at least two controllable drilling parameters having significant correlation to one or more drilling performance measurements. The methods and systems further generate operational recommendations for at least two controllable drilling parameters based at least in part on the statistical model. The operational recommendations are selected to optimize one or more drilling performance measurements.

Automatic drilling advisory system based on correlation model and windowed principal component analysis

A method and apparatus associated with the production of hydrocarbons is disclosed. The method, which relates to modeling of drilling equipment, includes constructing one or more design configurations for at least a portion of a bottom hole assembly (BHA) and calculating results from each of the one or more design configurations. The calculated results of the modeling may include one or more performance indices that characterize the BHA vibration performance of the design configurations for operating parameters and boundary conditions that are substantially the same or may be different. These results are then simultaneously displayed for a user to facilitate design selection. The selected BHA design configuration may then be utilized in a well construction operation and thus associated with the production of hydrocarbons.

Modeling and designing of well drilling system that accounts for vibrations

Methods and systems of reducing drilling vibrations include generation a vibration performance index using at least one frequency-domain model having a velocity-dependent friction relationship. The vibration performance index may be used to aid in the design or manufacture of a drill tool assembly. Additionally or alternatively, the vibration performance index may inform drilling operations to reduce vibrations.

Methods and systems for mitigating drilling vibrations

Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly or a coiled tubing coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, wherein the coefficient of friction of the ultra-low friction coating is less than or equal to 0.15. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.

Ultra-low friction coatings for drill stem assemblies

A method and apparatus associated with the production of hydrocarbons is disclosed. The method, which relates to modeling and operation of drilling equipment, includes constructing one or more surrogates for at least a portion of a bottom hole assembly (BHA) and calculating performance results from each of the one or more surrogates. The calculated results of the modeling may include one or more vibration performance indices that characterize the BHA vibration performance of the surrogates for operating parameters and boundary conditions, which may be substantially the same as conditions to be used, being used, or previously used in drilling operations. The selected BHA surrogate may then be utilized in a well construction operation and thus associated with the production of hydrocarbons.

Methods and systems for modeling, designing, and conducting drilling operations that consider vibrations

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Sugar Land, TX, United States of America

Vishwas Gupta