Exxonmobil Upstream Research Company

Exxonmobil Research and Engineering Company

Exxon Production Research Company

Jeffrey Roberts Bailey

Mehmet Deniz Ertas

Lei Wang

Gregory S Payette

Adnan Ozekcin

Narasimha-Rao Venkata Bangaru

Paul E Pastusek

Vishwas Gupta

Erika A O Biediger

Srinivasan Rajagopalan

Dar-Lon Chang

Shankar Sundararaman

Darren Pais

Hyun-Woo Jin

Tabassumul Haque

Marion M Ringo

Bo Zhao

Hyun Woo Jin

Terris Field Walker

Erika Ann Ooten Biediger

Swarupa Soma Bangaru, Legal Representative

Krishnan Kumaran

Michael Thomas Hecker

Michael D Barry

Hyunwoo Jin

Robert D Kaminsky

Randy C Tolman

Charles S Yeh

Richard J Smith

Damian N Burch

Stephen M Remmert

Sri Venkata Tapovan Lolla

Benjamin J Spivey

Michael S Hons

Helen Yam

Arslan Akhmetov

Matthew T Prim

Tim W Hayward

Colum M Keith

William Curtis Elks

Marc-Andre P Chen

Charles Shiao-Hsiung Yeh

Simona O Costin

Erika Ao Biediger

Timothy J Hall

Raghavan Ayer

Kris J Nygaard

Chun Huh

William A Sorem

Jeff H Moss

Mark C Moyer

Peng Xu

Pietro Valsecchi

David A Kinison

Jingbo Wang

Jung-gi Jane Shyeh

James B Day

Larry E Harrison

Richard P McBride

Brian J O'Donnell

Erika A Biediger

Steven F Sowers

Erika Biediger

Ming Gong

Theodore W Pirog

Xinlong Liu

Philip Lee Wylie, Jr

William Elks

Narasimha-Rao (deceased) Bangaru

Charles Shioa-Hsiung Yeh

Brian J O'donnell

Jung-Gi Jane Shyeh

Philip Lee Wylie

Erika AO Biediger

Deniz Ertas

Erika A Ooten Biediger

William C Elks

The present disclosure relates generally to the field of drilling operations. More particularly, the present disclosure relates to methods for drilling wells utilizing drilling equipment, more particularly drill string assemblies, and making adjustments to drilling parameters during the drilling operation based on analysis of the drilling data. Included are methods for the selection of modified drilling parameters to mitigate torsional vibration dysfunction.

Method for drilling wellbores utilizing drilling parameters optimized for stick-slip vibration conditions

A multi-layer friction reducing tape, including: a foil layer including a metal, polymer, or hybrid-metal-polymer; an under layer disposed on the foil layer; an adhesion promoting layer contiguous with a surface of the under layer; a functional layer that includes a fullerene based composite, a diamond based material, diamond-like-carbon (DLC), or combinations thereof, wherein the functional layer is contiguous with a surface of the adhesion promoting layer; and a tape, including an adhesive layer and a backing material, wherein the adhesive layer is attached to a surface of the foil layer opposite the under layer.

Diamond-like-carbon based friction reducing tapes

Methods are disclosed for monitoring operation integrity during hydrocarbon production or fluid injection operations. According to the methods, received microseismic data is processed to obtain a plurality of data panels corresponding to microseismic data measured over a predetermined time interval. For each data panel, trigger values are calculated for data traces corresponding to sensor receivers of the microseismic monitoring system. At least one data panel is selected as a triggered data panel that satisfies predetermined triggering criteria. A value is calculated for each of at least two event attributes of a plurality of event attributes of the event. An event is classified into at least one event category of a plurality of event categories based on the event score. Related non-transitory computer usable mediums are also disclosed.

Enhanced surveillance of subsurface operation integrity using neural network analysis of microseismic data

A method of optimizing drilling ramp-up is provided herein. More specifically, a method of ramping up a drilling operation from a static condition (0, 0) to optimum drilling parameter values (WOB*, RPM*) is provided. The method includes identifying a set of drilling control variables used in forming the wellbore. Examples include weight-on-bit (WOB) and rate of penetration (RPM). The method additionally includes selecting desired control variable values for a first identified drilling stage. The values may be generically referred to as (V, V). The method also includes increasing the drilling control variables from (0, 0) to pre-defined drilling control variable values (V, V). Preferably, Vis a WOB value while Vis a rotation speed value (RPM). The method also comprises monitoring a performance index (PI), wherein (PI) is a combination of torque (TQ) and penetration rate (RPM). The method then includes determining an optimal path to optimum drilling parameter values (WOB*, RPM*) using the Performance Index (PI).

Method of optimizing drilling ramp-up

Methods and systems are disclosed for monitoring operation integrity during hydrocarbon production or fluid injection operations. According to the methods and systems, received microseismic data is processed to obtain a plurality of data panels corresponding to microseismic data measured over a predetermined time interval. For each data panel, trigger values are calculated for data traces corresponding to sensor receivers of the microseismic monitoring system. At least one data panel is selected as a triggered data panel that satisfies predetermined triggering criteria. At least one triggered data panel is selected as a non-trivial data panel that satisfies spectral density criteria. A value is calculated for each of at least two event attributes of a plurality of event attributes of the event. An event score is determined based on the values of the plurality of event attributes. An event is classified into at least one event category of a plurality of event categories based on the event score.

Enhanced surveillance of subsurface operation integrity using microseismic data

The present disclosure relates generally to the field of drilling operations. More particularly, the present disclosure relates to methods for drilling wells utilizing drilling equipment, more particularly drill string assemblies, and predicting modified drilling operation conditions based on proposed changes to the drill string configuration and/or the drilling parameters. Included are methods for drilling wells utilizing a method for the selection of modified drill string assemblies and/or modified drilling parameters.

Method for drilling wellbores utilizing a drill string assembly optimized for stick-slip vibration conditions

Methods and systems for controlling a drilling operation based on an MSE value calculated for a depth increment are disclosed herein. In an exemplary method, drilling parameters characterizing a drilling operation in a subterranean formation are received in a control system. The drilling parameters are used by the control system to calculate a depth-based mechanical specific energy (MSE) based on some amount of energy expended by at least a portion of a drilling assembly while drilling at least one identified depth sub-interval of a depth interval of a subterranean formation. The control system uses the calculated depth-based MSE to control the drilling operation.

Drilling a wellbore

Methods for drilling a wellbore within a subsurface region and drilling assemblies and systems that include and/or utilize the methods are disclosed herein. The methods include receiving a plurality of drilling performance indicator maps, normalizing the plurality of drilling performance indicator maps to generate a plurality of normalized maps, adaptive trending of the plurality of drilling performance indicator maps to generate a plurality of trended maps, summing the plurality of trended maps to generate an objective map, selecting a desired operating regime from the objective map, and adjusting at least one drilling operational parameter of a drilling rig based, at least in part, on the desired operating regime.

Methods for drilling a wellbore within a subsurface region and drilling assemblies that include and/or utilize the methods

A method to drill a borehole or wellbore through an earthen formation using a drill bit on a drillstring, comprising the steps of: selecting a frequency-domain dynamic model of a drilling assembly that describes the dynamic response of the drilling assembly to excitation at an excitation frequency for operating at a set of selected drilling parameters that include at least rotary speed and weight on bit; calculating a composite vibration index by combining calculated vibration indices for each excitation frequency with the spectral weighting factors for each of the drilling parameter partitions; displaying said composite vibration index for each of the drilling parameter partitions; selecting preferred drilling parameters based on the displayed results, and using the preferred drilling parameters to drill a borehole with the modeled drilling assembly.

Methods to determine composite vibration indices of a drilling assembly

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

Integrated methods and systems for optimizing drilling related operations include recording data, parsing the data into intervals and analyzing the intervals to determine if the performance data in each time interval is of sufficient quality for using the interval data in a performance optimization process. The quality assessment may involve evaluating the data against a set of determined standards or ranges. The performance optimization process may utilize data mapping and/or modeling to make performance optimization process recommendations.

Drilling advisory systems and methods to filter data

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

Combined methods and systems for optimizing drilling related operations include global search engines and local search engines to find the optimal value for at least one controllable drilling parameter, and a data fusion module to combine or select the operational recommendations from global and local search engines. The operational recommendations are used to optimize the objective function, mitigate dysfunctions, and improve drilling efficiency.

Drilling advisory systems and methods with combined global search and local search methods

Integrated methods and systems for optimizing drilling related operations include global search engines and local search engines to find an optimal value for at least one controllable drilling parameter, and decision trees to select algorithms such as between learning mode algorithms and application mode algorithms for generating operational recommendations based on the results from global and local search engines. The operational recommendations are used to optimize the objective function, mitigate dysfunctions, and improve drilling efficiency.

Drilling advisory systems and methods with decision trees for learning and application modes

Method to estimate severity of downhole vibration for a drill tool assembly, including: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference level of downhole vibration amplitude for the drill tool assembly; identifying a surface drilling parameter and calculating a reference surface vibration attribute for the selected reference level of downhole vibration amplitude; determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter; and estimating a downhole vibration severity indicator by evaluating the determined surface parameter vibration attribute with respect to the identified reference surface vibration attribute.

Methods to estimate downhole drilling vibration amplitude from surface measurement

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Houston, TX, United States of America

Jeffrey Roberts Bailey