公开(公告)号：US12116856B2

公开(公告)日：2024-10-15

申请号：US17907605

申请日：2021-03-30

Applicant: Schlumberger Technology Corporation

Inventor： Olivier Amsellem ,  Stephane Hoareau ,  Hikmet Andic ,  Mathieu Dauphin ,  Matthew Givens ,  Estelle Espinosa

IPC: E21B33/06 ,  G01M3/28

CPC classification number: E21B33/06 ,  G01M3/2876

Abstract: A detection system includes a pressure sensor configured to contact an annular elastomer component of an annular BOP, wherein the pressure sensor is configured to generate a first signal indicative of a contact pressure with the annular elastomer component. The detection system also includes a piston stroke sensor configured to generate a second signal indicative of a piston stroke distance. The detection system further includes a controller configured to receive the first signal from the pressure sensor and the second signal from the piston stroke sensor and analyze respective changes in the contact pressure and respective changes in the piston stroke distance to determine a condition of the annular BOP.

公开(公告)号：US12146870B1

公开(公告)日：2024-11-19

申请号：US18650878

申请日：2024-04-30

Applicant: Schlumberger Technology Corporation

Inventor： Andrew J. Speck ,  Aditi Chakrabarti ,  Mathieu Dauphin ,  Albert Ballard Andrews

IPC: G01N33/00

Abstract: Systems and methods are described for developing a model to predict humidity (relative, absolute) values inside a closed housing with an absorbent filter. In an example, a methane sensor that includes an internal atmospheric sensor and an external atmospheric sensor can be placed at a site. A computing device can use measurements from the atmospheric sensors to calculate predicted relative and absolute humidity values inside the methane sensor. The computing device can train a gaussian process regression model to calibrate sensor data based on the external temperature and humidity. When the model predicts the ambient methane within a predetermined degree of allowance, the model can be applied to live readings from methane sensors in the field.

公开(公告)号：US20250155313A1

公开(公告)日：2025-05-15

申请号：US18834860

申请日：2023-04-27

Applicant: Schlumberger Technology Corporation

Inventor： Raphael Gadot ,  Adam P. Huynh ,  Vincent Nicolas ,  Andrew J. Speck ,  Aditi Chakrabarti ,  Mathieu Dauphin ,  Albert Ballard Andrews

IPC: G01M3/04 ,  G08C17/02

Abstract: The disclosure relates to an emission detector for monitoring methane emissions at one or more industrial facilities. The emission detector includes: an enclosure that supports a plurality of sensors, wherein the enclosure is configured to permit atmospheric gas to flow by diffusion into space at or near the plurality of sensors, wherein the plurality of sensors include at least one atmospheric sensor configured to measure atmospheric properties of the atmospheric gas that flows into the space at or near the plurality of sensors as well as at least one gas sensor configured to measure concentration of methane in the atmospheric gas that flows into the space at or near the plurality of sensors.