Halliburton Energy Services, Inc.

Jeremy Alexander Greenwood

Christopher Neil Marland

James Randolph Lovorn

Ketan Chimanlal Bhaidasna

John Kenneth Snyder

Paravastu Badrinarayanan

Reena Agarwal Chanpura

Nancy Suzan Davis

William Bradley Standifird

Sara Shayegi

Adnan Zaman

Xiaomin Hu

Syed Aijaz Rizvi

Graeme O'Brien Phillip Salmon

Nancy Davis

The disclosure provides a solution to problems associated with vibrations during drilling by applying metrics on post job data and providing inputs from past experiences to pre-job planning for drilling jobs. The vibration information and analysis can also be used during a current drilling operation wherein a vibration source can be automatically identified and operating parameters can be changed to mitigate the vibration. The disclosure provides a method of executing a drilling operation, a vibration analyzer, and a drilling system. In one example, the method includes: (1) collecting drilling job data from a completed drilling job, wherein the drilling job data includes sensor data collected from downhole sensors, (2) determining a vibration severity index from the sensor data, and (3) executing at least a portion of a drilling operation based on the vibration severity index.

Service improvements using adaptive models derived from classified vibration mechanisms

The disclosure recognizes the benefit in determining the dimensions of a wellbore for updating a performance model and changing drilling parameters in real time for steering a drill bit. The disclosed system and method provide improved control for steering a drill bit by obtaining dimension measurements of the wellbore proximate a drill bit and considering the dimension measurements to adjust one or more of the drilling parameters in real time. A method of drilling a wellbore a drilling system, and a drilling tool are disclosed herein. In one example, the method includes: (1) receiving dimension measurements of a wellbore during drilling of the wellbore by a drilling tool, (2) updating an existing performance model of the drilling tool in real time based on the dimension measurements, and (3) operating the drilling tool based on the updated performance model.

Real time drilling model updates and parameter recommendations with caliper measurements

A method for configuring a bottom hole assembly (BHA) includes receiving bending moment values for the BHA, curvature values and drilling conditions for a wellbore, and processing the bending moment values to create a representation of the curvature of the drilled wellbore. Processing the bending moment values includes selecting a set of curvature values in a specified range for a selected location, calculating a bending moment value for each curvature value, and determining an actual wellbore curvature at the location by matching the received bending moment value to one of the calculated bending moment values. The method further includes generating a representation of an actual path of the wellbore using selected curvature values at a plurality of wellbore locations, comparing the actual path of the wellbore with a planned path of the wellbore; and based on the comparison, determining a configuration of the BHA to drill a next wellbore.

Determining approximate wellbore curvature

The present disclosure describes measuring bending moments within a drillstring or tool string to identify deflections (or 'dog-legs') within the string. In some systems, the bending moments a plurality of strain gauges. In some such systems the strain gauges will be arranged in a selected spacing around the circumference of the tool string, in many examples, at a common plane extending generally perpendicular to the longitudinal axis of the string proximate the strain gauges. The bending moments may be further evaluated to provide a measure of wellbore tortuosity. For example, the bending moments may be utilized to define a radius of curvature associated with the determined bending moments, which may be further correlated with a directional measurement to apply a direction to the bending moment, and therefore to the tortuosity an any given location. In many examples, the above measurements and determinations will be performed in essentially real time during a drilling operation; and will in some cases be used to perform remedial measures, where dictated.

Methods and apparatus for monitoring wellbore tortuosity

An apparatus and method for alleviating spiraling in boreholes is disclosed. The apparatus includes a sub, which adjusts the length of the bottom-hole assembly in response to tension/compression, flexural bending and/or torque measurements made above and below the reamer so that the drill bit and the reamer cut at the same depth rate. The sub is connected between the drill bit and the reamer. The apparatus further includes measurement devices disposed on the bottom-hole assembly above and below the reamer, which are capable of measuring the tension/compression, flexural bending and torque in the bottom-hole assembly. The method includes use of a data processor, which determines which operational output signals to supply to the sub in order to adjust its length and thereby accomplish the desired drilling rates.

Apparatus and method of alleviating spiraling in boreholes

Well pressure control is integrated in real time with geomechanics determinations made during drilling. A well drilling method includes updating determinations of properties of a formation surrounding a wellbore in real time as the wellbore is being drilled; and controlling wellbore pressure in real time as the wellbore is being drilled, in response to the updated determinations of the formation properties. Another well drilling method includes obtaining sensor measurements in a well drilling system in real time as a wellbore is being drilled; transmitting the sensor measurements to a control system in real time; the control system determining in real time properties of a formation surrounding the wellbore based on the sensor measurements, and the control system transmitting in real time a pressure setpoint to a controller; and the controller controlling operation of at least one flow control device, thereby influencing a well pressure toward the pressure setpoint.

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Houston, TX, United States of America

Jeremy Alexander Greenwood