公开(公告)号：US20160230484A1

公开(公告)日：2016-08-11

申请号：US15023116

申请日：2014-09-19

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Ashley Bernard Johnson ,  Devi Putra ,  Maurice Ringer ,  Benjamin Peter Jeffryes

IPC: E21B21/08 ,  G05B15/02 ,  G05D7/06 ,  E21B47/10 ,  E21B47/06

CPC classification number: E21B21/08 ,  E21B47/06 ,  E21B47/10 ,  G05B15/02 ,  G05D7/0676

Abstract: A method for determining hydraulic compliance of a wellbore during a managed pressure drilling procedure. Measurements are made of the pressure of a drilling fluid being circulated in the wellbore during the procedure at the top of a drilling annulus, the flow rate qin of the drilling fluid into the wellbore and the flow rate qout of the fluid out of the wellbore. These three measurements are used to determine the difference of the flow rates and a discrete time derivative (Pt−Pt-Δt)/Δt of the pressure, where t is time and Δt is a time interval. The differences in flow rates and the time derivatives are then processed by applying a low pass filter to determine the hydraulic compliance of the wellbore.

Abstract translation: 一种用于在管理的压力钻井程序期间确定井筒的液压顺应性的方法。 测量在钻井环顶部的过程期间在井筒中循环的钻井流体的压力，钻井流体进入井眼的流量qin和流体离开井筒的流量qout。 这三个测量用于确定流量的差异和压力的离散时间导数（Pt-Pt-Δt）/Δt，其中t是时间，Δt是时间间隔。 然后通过应用低通滤波器来处理流速和时间导数的差异，以确定井眼的水力依从性。

公开(公告)号：US10767427B2

公开(公告)日：2020-09-08

申请号：US14650181

申请日：2013-12-05

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Ashley Bernard Johnson ,  Maurice Ringer ,  Devi Putra ,  Michalis Frangos ,  Jakub Jerabek ,  Kjetil Havre ,  Walter David Aldred

IPC: E21B21/08 ,  E21B47/00 ,  G05B13/04

Abstract: A method is provided for controlling a managed pressure drilling system. The method comprises providing a fast system interpretation model for the operation of the managed pressure drilling system, obtaining real-time measurements from one or more sensors regarding the operation of the managed pressure drilling system, using the measurements to calibrate the fast system interpretation model for the managed pressure drilling system in real-time and using a predictive controller to run the calibrated fast system interpretation model to a time horizon in the future.

公开(公告)号：US20150308204A1

公开(公告)日：2015-10-29

申请号：US14650181

申请日：2013-12-05

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Ashley Bernard Johnson ,  Maurice Ringer ,  Devi Putra ,  Michalis Frangos ,  Jakub Jerabek ,  Kjetil Havre ,  Walter David Aldred

IPC: E21B21/08 ,  G05B13/04 ,  E21B47/00

CPC classification number: E21B21/08 ,  E21B47/00 ,  G05B13/048

Abstract: A method is provided for controlling a managed pressure drilling system. The method comprises providing a fast system interpretation model for the operation of the managed pressure drilling system, obtaining real-time measurements from one or more sensors regarding the operation of the managed pressure drilling system, using the measurements to calibrate the fast system interpretation model for the managed pressure drilling system in real-time and using a predictive controller to run the calibrated fast system interpretation model to a time horizon in the future.

Abstract translation: 提供了一种用于控制管理的压力钻井系统的方法。 该方法包括提供用于管理压力钻井系统的操作的快速系统解释模型，从一个或多个传感器获得关于管理的压力钻井系统的操作的实时测量，使用测量来校准快速系统解释模型 实时管理压力钻井系统，并使用预测控制器将校准的快速系统解释模型运行到未来的时间范围。