Schlumberger Technology Corporation

Services Petroliers Schlumberger

Geoquest Systems B.v.

Samba Ba

Yong Wang

Hui Li

Geoffrey Charles Downton

Tao Yu

Ginger Hildebrand

Maurice Ringer

Maja Ignova

Jean-Pierre Poyet

Katharine L Mantle

Anton Kolyshkin

Lu Jiang

Conie Chiock

Diego Medina

Li Guo

Hendrik Suryadi

Jia Yao

Adrien Chassard

Jinsoo Kim

Magnus Hedlund

Farid Toghi

Robert Little

Pascal Hochart

Maxim Pushkarev

Jia Xu Liu

Florian Le Blay

A method can include receiving data for a bottom hole assembly of a drillstring and a drill plan; generating candidate trajectories using at least a portion of the data; generating drill command schedules for the candidate trajectories; ranking the candidate trajectories based at least in part on the drill command schedules; and outputting at least a top ranked candidate trajectory and its corresponding drill command schedule.

Approaches to directional drilling

A mud motor includes a rotor and a stator. Drilling fluid received by cavities of the mud motor drives the rotor to rotate within the stator. The rotor includes one or more rotor lobes extending helically and defining a rotor pitch. The stator includes two or more stator lobes extending helically and defining a stator pitch. The rotor and the stator together define a tapered profile of the mud motor that varies proceeding from a top end of the mud motor to a bottom end of the mud motor. At least one of the rotor pitch or the stator pitch vary as proceeding from the top end of the mud motor to the bottom end of the mud motor.

Mud motor or progressive cavity pump with varying pitch and taper

A method for conducting wellsite activities includes receiving measured sensor data collected by one or more sensors in a wellsite construction rig, determining a data quality of the measured sensor data based on a plurality of data quality dimensions, predicting predicted sensor data using a model, comparing the measured sensor data with the predicted sensor data, determining an uncertainty of the measured sensor data based at least in part on the data quality and the comparison, and selecting one or more workflows for implementation using the one or more sensors, the wellsite construction rig, or both.

Well construction workflow selection and execution

A computer-implemented method including receiving a steering command identifying a tool face orientation in which the steering command is expected to produce an intended steering response of an intended drilling trajectory. The method further includes receiving an actual steering response result of the steering command in which the actual steering response result identifies an actual drilling trajectory. The method further includes storing a dataset comparing the actual steering response result in relation to the intended steering response, determining an uncertainty level of the tool face orientation based on the stored dataset, and outputting a visual representation of steering response with the uncertainty level.

Displaying steering response with uncertainty in a heat map ellipse

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Beijing, China

Samba Ba