Application of an infinite-dimensional observer for drilling systems incorporating kick and loss detection

Hauge, Espen; Aamo, Ole Morten; Godhavn, John–Morten

doi:10.23919/ecc.2013.6669316

Cited by 18 publications

(8 citation statements)

References 12 publications

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“…Some examples include road traffic [3], gas flow pipeline [4], and flow of fluids in transmission lines ( [5], [6]) and in open channels [7]. Recently, for control and estimation purposes, the distributed parameter model (1)- (3) has been used to model mud flow during oil well drilling ( [8], [9], [10]). …”

Section: A Motivation and Previous Workmentioning

confidence: 99%

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Adaptive boundary observer for nonlinear hyperbolic systems: Design and field testing in managed pressure drilling

Hasan

2015

2015 American Control Conference (ACC)

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Abstract-The present paper develops an adaptive boundary observer for systems modeled by nonlinear hyperbolic PDEs with limited number of measurements. The design is based on the backstepping method and relies only on one boundary measurement. The observer gains are obtained through solving a first-order hyperbolic system of Goursat-type PDEs. The design is implemented in an estimation problem in managed pressure drilling (MPD), where a state observer and an updatelaw are used to estimate the annular downhole pressure and the rate of lost circulation, respectively. The design is tested against a field scale flow-loop test in Stavanger, Norway by Statoil. The results show that the state observer converges to the actual flow and pressure values and that the update-law accurately estimates the rate of lost circulation.

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Section: A Motivation and Previous Workmentioning

confidence: 99%

“…Backstepping has found several applications in oil and gas problems, including the gas coning control ( [16], [17]), the flow control in porous media [18], the slugging control [19], the lost circulation and kick problems ( [20], [21]), and the heave problem ( [22], [23]). …”

Section: A Motivation and Previous Workmentioning

confidence: 99%

Adaptive boundary observer for nonlinear hyperbolic systems: Design and field testing in managed pressure drilling

Hasan

2015

2015 American Control Conference (ACC)

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“…Regarding the topic of this article, the Liénard type equations have been used to model fluid dynamics as done in [10], where a model for a drilling system was formulated, while in [20], the forced isotropic turbulence was described in terms of a cubic Liénard equation with linear damping. However, to the best of our knowledge, fluid dynamics in a pipeline has never been modeled as a Liénard system despite the various applications in which such a representation can be useful, such as the design of identification algorithms, control laws or diagnosis systems for pipelines [23], [24].…”

Section: Introductionmentioning

confidence: 99%

Liénard type model of fluid flow in pipelines: Application to estimation

Torres

Besançon

Verde

2015

2015 12th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)

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This paper highlights how fluid flow in a pipeline can be represented as a nonlinear model of so-called Liénard type. It is then shown how the structure of this model is suitable for the design of algorithms to identify parameters of a pipeline or estimate unmeasurable states. This approach is illustrated by simulation results, for instance showing how to estimate the Darcy-Weisbach friction coefficient or the fluid acceleration.

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“…The results in this paper employ the backstepping method. Backstepping has found several applications in oil and gas, including the gas coning problem ( [18], [19]), flow in porous media [20], slugging control [21], the lost circulation and kick problem [22], and the heave problem ( [23], [24]). …”

Section: Introductionmentioning

confidence: 99%

State estimation for nonlinear hyperbolic PDE-ODE cascade systems

Hasan

Aamo

Krstić

2015

2015 10th Asian Control Conference (ASCC)

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This paper presents state estimation for a class of nonlinear hyperbolic PDE-ODE cascade systems. The observer is based on the backstepping method and relies only on a single boundary measurement. The observer consists of a copy of the plant plus output injection terms both in the PDEs and the ODEs. Furthermore, both sensing and actuation are located at the same boundary (collocated setup). The observer gains are computed analytically by solving Goursat-type PDEs in terms of modified Bessel functions of the first kind. A field-scale test experiment in a flow-loop test facilities is conducted by Statoil oil company to show the applicability of the observer.

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Application of an infinite-dimensional observer for drilling systems incorporating kick and loss detection

Cited by 18 publications

References 12 publications

Adaptive boundary observer for nonlinear hyperbolic systems: Design and field testing in managed pressure drilling

Adaptive boundary observer for nonlinear hyperbolic systems: Design and field testing in managed pressure drilling

Liénard type model of fluid flow in pipelines: Application to estimation

State estimation for nonlinear hyperbolic PDE-ODE cascade systems

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