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

2017 ◽  
Vol 9 (8) ◽  
pp. 168781401771542
Author(s):  
Quan Zhou ◽  
Hui Zhao ◽  
Shengnan Li ◽  
Yufa He ◽  
Huijie Zhang
Keyword(s):  
Ultrasonic Wave ◽  
Deep Water ◽  
Detection Method ◽  
Gas Kick ◽  
Continuous Doppler

scholarly journals A gas kick early detection method outside riser based on Doppler ultrasonic wave during deepwater drilling

2020 ◽  
Vol 47 (4) ◽  
pp. 846-854
Author(s):  
Bangtang YIN ◽  
Yingsong LIN ◽  
Zhiyuan WANG ◽  
Baojiang SUN ◽  
Shujie LIU ◽  
...  
Keyword(s):  
Early Detection ◽  
Ultrasonic Wave ◽  
Detection Method ◽  
Deepwater Drilling ◽  
Gas Kick

Numerical simulation of a new early gas kick detection method using UKF estimation and GLRT

2019 ◽  
Vol 173 ◽  
pp. 415-425 ◽  
Author(s):  
Hailong Jiang ◽  
Gonghui Liu ◽  
Jun Li ◽  
Tao Zhang ◽  
Chao Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Detection Method ◽  
Gas Kick

scholarly journals Detection Technology of Foamed Mixture Lightweight Soil Embankment Based on Ultrasonic Wave Transmission Method

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Shikun Pu ◽  
Baoning Hong ◽  
Xin Liu ◽  
Fenqiang Xu ◽  
Hao Shan
Keyword(s):  
Ultrasonic Wave ◽  
Detection Method ◽  
Wave Transmission ◽  
Simulation Approach ◽  
Transmission Method ◽  
Detection Technology ◽  
Ultrasonic Parameters ◽  
Test Distance ◽  
Quality Diagnosis ◽  
Curing Age

This study attempted to establish a process that uses the ultrasonic wave transmission method to correlate the ultrasonic parameters with the material properties of Foamed Mixture Lightweight Soil (FMLS). The results were then applied for the defect detection of the FMLS embankment. First, the ultrasonic wave velocity (UPV) and amplitude (UPA) of FMLS with different mix proportions were collected continuously from 3rd day to 45th day in the curing age. The relationships between UPV versus FMLS elastic modulus, unconfined compressive strength, and density were calibrated. The variations in the ultrasonic parameters owing to the test distance and crack width were recorded. Then, the laboratory tests were reproduced through numerical simulation approach. Finally, the reliability and accuracy of the proposed detection method for FMLS were proved and validated through on-site tests. The proposed methodology, which is simple, stable, and reliable, was found to be suitable for the quality diagnosis of FMLS embankments after construction and during operation.

Pressure-Difference Method for Gas-Kick Detection in Risers

SPE Journal ◽  
2021 ◽  
pp. 1-19
Author(s):  
Guangzhao Zhou ◽  
Colin Leach ◽  
Veerabhadra S. Denduluri ◽  
George K. Wong ◽  
Amit Amritkar ◽  
...  
Keyword(s):  
Signal Processing ◽  
Difference Method ◽  
Pressure Difference ◽  
Laboratory Experiments ◽  
Oil And Gas ◽  
Detection Method ◽  
Oil Industry ◽  
Physical Explanation ◽  
Adequate Response ◽  
Gas Kick

Summary Undetected gas kicks are at the root of many disastrous accidents in the oil industry. A major factor in these tragic outcomes is the suddenness with which oil and gas can be ejected from the top of the riser, which gives operators virtually no time for an adequate response. This aspect of the phenomenon is quantified by providing a physical explanation of its origin and suggesting simple, if approximate, guidelines to estimate its severity. Then a relatively straightforward and potentially practical way to detect the presence of dangerous gas volumes in a riser is described. The basic idea is to measure the pressure difference between sensors spaced along the riser. When gas occupies the space between sensors, the pressure difference undergoes large changes chiefly caused by the decreased hydrostatic head. It is shown that this difference can be enhanced by adequate signal processing and is robust in the presence of noise. The suggested detection method is supported by a set of laboratory experiments.

scholarly journals Oil Spill Detection Using Satellite Imagery

2021 ◽  
Vol 2 (4) ◽  
pp. 1-1
Author(s):  
Amber Bonnington ◽  
◽  
Meisam Amani ◽  
Hamid Ebrahimy ◽  
◽  
...  
Keyword(s):  
Change Detection ◽  
Oil Spill ◽  
Deep Water ◽  
Oil Spills ◽  
Detection Method ◽  
Oil Spill Detection ◽  
New Development ◽  
Before And After ◽  
The Difference ◽  
Remote Sensing Techniques

<span>Since oil exploration began, oil spills have become a serious problem. When drilling for oil, there is always a risk of an oil spill. With the new development of technology over the years, oil spill detection has become much easier making the clean-up of a spill to happen much faster reducing the risk of a large spread. In this study, remote sensing techniques were used to detect the Deep-water Horizon oil spill through a change detection method. The change detection method allows the viewer to determine the difference of an area before and after an oil spill as well as detect the irregular difference on a surface. To confirm the effectiveness of change detection method, two approaches were used each showing the differences in the images before and after the spill allowing the size and shape to be identified. The swipe tool in the ArcGIS software was used to visually show the changes. The difference tool was also used to both visually and statistically to investigate the difference before and after the Deep-water Horizon oil spill event.</span>

Experimental Study of Bellows Duct Grouting Compactness with Quantitative Detection

2014 ◽  
Vol 716-717 ◽  
pp. 322-327 ◽  
Author(s):  
Feng Chu ◽  
Yuan Cao ◽  
Guang Zhi Qi ◽  
Lei Gao
Keyword(s):  
Experimental Study ◽  
Ultrasonic Wave ◽  
Theoretical Basis ◽  
Detection Method ◽  
Concrete Slab ◽  
Quantitative Detection ◽  
Estimation Model ◽  
Ultrasonic Detection ◽  
Time Histories

In order to quantitatively detect the compactness of bellows duct grouting, by studying time-histories relation curve forming by ultrasonic wave transmitting in different thicknesses concrete samples. We get the acoustic time rule after ultrasonic passed through different compactness bellows duct. At the same time, establishing empty hole estimation model corresponding to the concrete samples and providing theoretical basis for judging porosity and predicting the grouting quality in the bellows duct. Meanwhile, dividing the bellows duct into five degrees complete compactness, 3/4 compactness, 1/2 compactness, 1/4 compactness, empty by setting up defects in the bellows duct, and then embedding them in concrete slab to do ultrasonic detection. The detection result shows that ultrasonic detection method can effectively quantitive estimate the grouting quality of prestressed bellows duct with establishing empty hole estimation model.

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