公开(公告)号：US20220397027A1

公开(公告)日：2022-12-15

申请号：US17661943

申请日：2022-05-04

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Valerian Guillot ,  Fatma Mahfoudh ,  Josselin Kherroubi ,  Anderson Schmidt

IPC: E21B44/00 ,  E21B47/07 ,  E21B45/00

Abstract: Planning a wellbore includes determining drillability values from surface drilling parameters for an offset wellbore. The drillability values are used to prepare a protein code sequence of protein codes assigned to a range of drillability values. The protein code sequence from the offset wellbore is used to develop a protein code sequence for a planned wellbore. A machine learning model analyzes the offset surface drilling parameters and protein code sequence, and provides target surface drilling parameters for the planned wellbore.

公开(公告)号：US20230082520A1

公开(公告)日：2023-03-16

申请号：US17929412

申请日：2022-09-02

Applicant: Schlumberger Technology Corporation

Inventor： Aymeric Lilian Jan ,  Fatma Mahfoudh ,  Gordana Draskovic ,  Cheolkyun Jeong ,  Yingwei Yu

IPC: E21B44/00 ,  E21B47/095 ,  E21B47/10

Abstract: The present disclosure relates to systems, non-transitory computer-readable media, and methods for detecting a washout or other anomaly event in a wellbore. In particular, in one or more embodiments, the disclosed systems receive a plurality of measurements including a measured flow rate into the wellbore, a measured weight on a drill bit in the wellbore, a measured depth of the drill bit in the wellbore, and a measured pressure at a standpipe of the wellbore. In one or more embodiments, the disclosed systems estimate one or more parameters of a physical model for determining a theoretical estimate of the standpipe pressure. In one or more embodiments, the disclosed systems determine a probability that the washout or other anomaly event is occurring in the wellbore based at least partially upon the measurements and the theoretical estimate of the standpipe pressure.

公开(公告)号：US20230017966A1

公开(公告)日：2023-01-19

申请号：US17811931

申请日：2022-07-12

Applicant: Schlumberger Technology Corporation

Inventor： Gregory Michael Skoff ,  Crispin Chatar ,  Velizar Vesselinov ,  Cheolkyun Jeong ,  Yingwei Yu ,  Georgia Kouyialis ,  Fatma Mahfoudh

IPC: E21B44/00 ,  E21B7/04

Abstract: A method can include receiving input for a drilling operation that utilizes a bottom hole assembly and drilling fluid; generating a set of offset drilling operations using historical feature data, where the historical feature data are processed by computing feature distances; performing an assessment of the offset drilling operations as characterized by at least feature distance-based similarity between the drilling operation and the offset drilling operations; and outputting at least one recommendation for selection of one or more of a component of the bottom hole assembly and the drilling fluid based on the assessment.