The application of ultrasonic based on Doppler effect used in early kick detection for deep water drilling

Zhou, Quan; Zhao, Hui; Zhan, Hanlin; Zhang, HuiJie; Lu, ChengHao

doi:10.1109/icccas.2013.6765389

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…This will increase volume and cost of devices significantly and may introduce more interference sources. Recently, Zhou et al 13 proposed a detection method based on continuous Doppler ultrasonic wave to test flow velocity of drilling mud. However, the received signal based on continuous Doppler ultrasonic wave is nonstationary signal which could not be analyzed efficiently based on traditional methods, such as fast Fourier transform (FFT), sparse fast Fourier transform (SFFT), short-time Fourier transform (STFT).…”

Section: Introductionmentioning

confidence: 99%

An improved gas kick detection method based on continuous Doppler ultrasonic wave in deep water drilling

Zhou

Zhao

et al. 2017

Advances in Mechanical Engineering

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Gas kick detection is an essential part of safe well control process in deep water drilling. The conventional gas kick detection methods are based on the drilling mud flow velocity measured near the well mouth which often results in a high probability of delay. For deep water drilling, the gas kick detection method based on non-intrusive detection at mud line is one of the most commonly used methods with low cost and strong timeliness. In this article, the reflection model of continuous Doppler ultrasonic wave in multiphase fluid was analyzed and an improved gas kick detection method at mud line was proposed. The proposed method gives a comprehensive judgment on gas kick state based on continuous Doppler shift frequency (multiphase flow velocity), amplitude, and spectral shape. Experimental results on water and 1:1 g/cm 3 oil-based drilling mud demonstrated that the proposed method can detect early gas kick with over 3% void fraction effectively and measure multiphase flow velocity accurately under the steady flow state, showing a relative error smaller than 10%.

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Section: Introductionmentioning

confidence: 99%

An improved gas kick detection method based on continuous Doppler ultrasonic wave in deep water drilling

Zhou

Zhao

et al. 2017

Advances in Mechanical Engineering

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“…For gas detection, the ideal mud flow detection position is at the mud line of the seabed. Therefore, Zhou et al [10] proposed the use of ultrasound to detect mud flow. Fu et al [11] conducted further research and several simulation experiments.…”

Section: Introductionmentioning

confidence: 99%

Research on Mud Flow Rate Measurement Method Based on Continuous Doppler Ultrasonic Wave

Zhou¹,

Zhao²,

He³

et al. 2017

International Journal of Optics

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In deep-water drilling processes, the flow rate of drilling mud inside an annular pipe is significant judgment data for early kick detection. On the basis of the continuous-wave Doppler ultrasound, this paper proposes a new detection method of nonoriented continuous-wave Doppler ultrasound. The method solves the problem of the ultrasound having great attenuation in mud and not receiving effective signals by using a continuous ultrasound. Moreover, this method analyzes the nonoriented characteristics of ultrasound reflection on principle and proposes the detection of ultrasound Doppler frequency shift by detecting Lamb wave, which releases the detection of oil-based mud flow rate in a nonintrusive annular pipe. The feasibility of the method is verified through theoretical analysis and numerous experiments on a gas kick simulation platform. The measurement result has reached a flow accuracy approximating to the intrusive flow meter. OverviewEarly kick detection is an important method in preventing blowout accidents and plays a significant role in deepwater drilling processes. As an important judgment factor, emphasis is always placed on the flow detection of drilling mud in an annular pipe. However, the complicated nature of underwater environment and the detection of the mud flow that can only be conducted at the mud outlet cause serious hysteresis in gas kick detection results. The serious blowout accident that happened in the Gulf of Mexico, USA, in 2010 was greatly connected with the hysteresis in gas kick detection results. Knowing how to realize the detection of mud flow rate inside the annular pipe near the seabed and identifying the occurrence of the gas kick accident as early as possible are of great importance. However, two kinds of fluid flow detection methods exist: intrusive and nonintrusive. The intrusive flow meter will damage the original pipeline system and influence the drilling of the mud field, which makes the application of the intrusive method inevitably affect the original technological process. However, the deep-water drilling technology is complicated, and the requirement is high; thus, the change of the original technological process will bring about a cost increase. To have no influence on the original technological process, the best option is to have a nonintrusive flow detection method. Ultrasound flow detection is a typical nonintrusive flow detection method; however, mud drilling will cause ultrasound attenuation, and the common ultrasound detection method cannot detect effective echo signals. The continuous ultrasound will form a strong sound field in the mud and can spread further than the impulse ultrasound for the wave superposition factor. Nevertheless, few methods exist for detecting the flow rate of the continuous ultrasound. In addition, the measurement of the nonintrusive flow is difficult, because the flow mode of the annular pipe mud is complicated and the pressure at the seabed is remarkably high. On this basis, this study analyzes the nonoriented reflection of the contin...

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The early kick monitoring based on the ultrasonic measurement techniques in deep drilling

Zhao

Zhou

et al. 2015

2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

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The application of ultrasonic based on Doppler effect used in early kick detection for deep water drilling

Cited by 9 publications

References 8 publications

An improved gas kick detection method based on continuous Doppler ultrasonic wave in deep water drilling

An improved gas kick detection method based on continuous Doppler ultrasonic wave in deep water drilling

Research on Mud Flow Rate Measurement Method Based on Continuous Doppler Ultrasonic Wave

The early kick monitoring based on the ultrasonic measurement techniques in deep drilling

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