Rapid and Reliable Gas Influx Detection

Codazzi, D.; Till, P.K.; Starkey, Allen; Lenamond, Chris; Monaghan, B.J.

doi:10.2118/23936-ms

Cited by 12 publications

(2 citation statements)

References 5 publications

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“…An early kick/loss detection based on the downhole annular pressure measurements are discussed in (Hutchinson and Rezmer-Cooper, 1998;Ayesha, Venkatesan, and Khan, 2014;Ayesha, Venkatesan, and Khan, 2016). The usage of the travel time of pressure waves through the drill string and annulus to identify kick/loss is presented in (Codazzi et al, 1992;Stokka et al, 1993). (Hargreaves, Jardine, and Jeffryes, 2001;Kamyab et al, 2010;Cayeux and Daireaux, 2013) presented different numerical methods for kick/loss detections.…”

Section: Other Methodsmentioning

confidence: 99%

Upstream Ultrasonic Level Based Soft Sensing of Volumetric Flow of Non-Newtonian Fluids in Open Venturi Channels

et al. 2018

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This thesis is submitted to University of SouthEastern Norway (USN) for the degree of Doctor of Philosophy to the Department of Electrical Engineering, Information Technology, and Cybernetics under the Faculty of Technology, Natural Sciences, and Maritime Sciences. The research work is funded by the Ministry of Education and Research of the Norwegian Government, for four years with 25% teaching duties and starting from September 2014. The work is mainly related to flow measurement in the return line of drilling fluid circulation while drilling. In any drilling operations, wellbore stability is the primary objective for safe and efficient drilling. The study focuses on the usage of the delta flow measurement (i.e., the difference between inflow and return flow) for maintaining the wellbore stability. An accurate return flow measurement is a comparatively challenging task, which is investigated in this study. For the return flow measurement, a simple and accurate flow measurement system using Venturi constriction is presented that may replace an existing uniform open channel. For the study, three different types of existing flow models are investigated. Different machine learning based flow models are developed. The models are tested in a flow loop available at USN, Campus Porsgrunn using synthetic drilling fluids with rheological properties that are comparable with water-based drilling mud. The experimental results show that the models are applicable for non-Newtonian fluid flow measurements. I hope the models will be of use in the real drilling operations for both inflow and outflow measurements. vii Acknowledgement I would like to express my sincere gratitude towards my supervisor Saba Mylvaganam for his help and support in this work. I would also like to thank my cosupervisor Håkon Viumdal for his valuable contribution. We three together as a team has successfully managed to complete this work in time. My sincere thanks also go to my co-supervisor Gerhard Nygaard for sharing his expert knowledge on drilling operations during the early period of the work. I am grateful to the University of SouthEastern Norway and the Ministry of Education and Research of the Norwegian Government for funding the work. I would like to thank Equinor ASA for providing and commissioning the flow loop with various types of sensors and control systems dedicated to flow studies. The economic support from the Research Council of Norway and Equinor ASA through project no. 255348/E30 "Sensors and models for improved kick/loss detection in drilling (Semi-kidd)" is gratefully acknowledged. I greatly appreciate and acknowledge the expert advice on drilling operations by Dr. Geir Elseth of Equinor. I thank my colleagues and friends; Rajan

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Section: Other Methodsmentioning

confidence: 99%

Upstream Ultrasonic Level Based Soft Sensing of Volumetric Flow of Non-Newtonian Fluids in Open Venturi Channels

et al. 2018

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“…The response time of these measurements may be too long under certain situations. In contrast, acoustic kick detection systems have the potential of detecting the gas downhoIe, and in the earliest stages of a kick [3,4,5]. A common feature of the present day acoustic systems is that they rely on pressure generated during mud circulation.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Gas Kick Detection With Wellhead Sonar

Bang¹,

Mjaaland²,

Solstad³

et al. 1994

Proceedings of SPE Annual Technical Conference and Exhibition

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A copy~ht i 994, Society of Petroleum Enginears, Inc. -This papa wa$ prepared fw presentation at the SPE 691h Annual Tec-hnlcal"&&enrn and .%hlb[ll.i hdd In &v Orleans, LA, LLSA.. &28 SoPtember 1994. This paw was selected for qremn!allon by am SPE Prcgram Comm[ttne fd!owlng review of Mormatkm mntalnad in.. abstrati submlt!ti by the author(s). Contents of the PaPar, as presented, have not been r&lewad by tie SCCMY of Pelm!e.m Ecglneers and ar8 subject !0 conectlcm by lk+ author(s). The materral, as pre$enled, does not .Ecassarlly reflsc! .w' pmitb! of the Sc+fwy of @rcde.m Enginews, its oflicws, or Inembms. Papws prnsented at SPE mea!lngs we wbleet !. publicatto" mvhw by Edh.M.l Commlnem of the Society .1 Pebdeum E.ginewe. Perrnlsslonto ccw' 18restricted to a" abs+rmt of cot mm thaX?QOwords. l[lustm!ionsmay not be COPiti. The abstmc! should contain Wn$Pbucas acknotiedgment of whore and)y whom the-papw !s Presented. WJite Librarian, SPE, P.O. Sax SS3836, RlchHd.son, TX 7506~W6. U.S.A. To!%, 1~>$ SpE!?T. AbstractAn acoustic gas kick detection sys~m h~" been successfully tested in Ml-scale experiments. The principle of operation is similar to that of an echo-sounder system. The method is neither dependent on "mud circulation, nor does it require the presence of the drillpipe. It can be applied to both platforms and floating rigs. Furthermore, only surface equipment is required for its operation. In the experiments 150 to 6001. of gas was injectd at a depth of 1210 m both in water and in wdter-based drilling fluid. The results show that the changes caused by the presence of free gas in ihe well are easily and instantly detected, > . SPE 28317J. BANG ET AL. 3

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Mud Acoustics in Modern Drilling

Chin¹

2014

Wave Propagation in Drilling, Well Logging and Reservoir Applications

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Rapid and Reliable Gas Influx Detection

Cited by 12 publications

References 5 publications

Upstream Ultrasonic Level Based Soft Sensing of Volumetric Flow of Non-Newtonian Fluids in Open Venturi Channels

Upstream Ultrasonic Level Based Soft Sensing of Volumetric Flow of Non-Newtonian Fluids in Open Venturi Channels

Acoustic Gas Kick Detection With Wellhead Sonar

Mud Acoustics in Modern Drilling

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