The application of MWD technology in the current oil exploration has been very common. During the drilling process, various sensors with different feedback and response characteristics can be used to collect and obtain real-time inspection and…
The application of MWD technology in the current oil exploration has been very common. During the drilling process, various sensors with different feedback and response characteristics can be used to collect and obtain real-time inspection and…
Pipelines are integral components for storing and transporting liquid and gaseous petroleum products. Despite being durable structures, ruptures can still occur, resulting not only in financial losses and energy waste but, most importantly, in…
Pipelines are integral components for storing and transporting liquid and gaseous petroleum products. Despite being durable structures, ruptures can still occur, resulting not only in financial losses and energy waste but, most importantly, in…
The application of MWD technology in the current oil exploration has been very common. During the drilling process, various sensors with different feedback and response characteristics can be used to collect and obtain real-time inspection and…
Pipelines are widely used in the transportation of water, oil, gas, etc. Leakage in pipelines leads to a great waste of natural resources and sometimes constitutes a public health risk. Due to its wave-like nature, acoustics is one of the most…
A method, combing the STA/LTA method in seismic identification with the negative pressure detection, was studied and applied to oil pipeline leak detection. According to the signal similarity of seismic first arrival and negative pressure produced in…
Providing quick response time and accurate detection of small leaks in multiphase pipelines is of great importance for risk mitigation in the oil and gas industry. The emphasis of implementing state-of-the-art technologies to mitigate both safety and…
Pipelines are integral components for storing and transporting liquid and gaseous petroleum products. Despite being durable structures, ruptures can still occur, resulting not only in financial losses and energy waste but, most importantly, in…
Pipelines are widely used in the transportation of water, oil, gas, etc. Leakage in pipelines leads to a great waste of natural resources and sometimes constitutes a public health risk. Due to its wave-like nature, acoustics is one of the most…
A method, combing the STA/LTA method in seismic identification with the negative pressure detection, was studied and applied to oil pipeline leak detection. According to the signal similarity of seismic first arrival and negative pressure produced in…
The paper proposes a method of passive leak detection for underwater pipelines by means of phased antenna arrays. It implies element-wise multiplication and addition of the output signals of individual array transducers. The proposed method provides…
Providing quick response time and accurate detection of small leaks in multiphase pipelines is of great importance for risk mitigation in the oil and gas industry. The emphasis of implementing state-of-the-art technologies to mitigate both safety and…
The application of MWD technology in the current oil exploration has been very common. During the drilling process, various sensors with different feedback and response characteristics can be used to collect and obtain real-time inspection and…
Refineries are giant industrial facilities where tons of crude oil is turned into fuel oil and other chemical by-products through different chemical processes every day. In this article, we discuss big data problems specifically obserbed in…
Field-pipelines leakage detection based on the negative pressure wave theory is mainly aiming to effectively process pressure sample signal in time domain. Previous methods often perform well for detecting large leakage but poorly for small leakage.…
Because of kinds of regulating commands, Oil and gas pipelines in operation can occasionally generate a series of conditions consisting of stopping transportation, starting transportation, distribution, increment, internal pump regulation of single…
For the method of magnetic flux leakage testing, the evaluation of test results is based on the detected signals. The quality of evaluation is affected by the quality of the signals. The signals of magnetic flux leakage are often influenced by…
Since the high accuracy of the leakage detection can not be achieved at present, singularity analysis based on wavelet transform is adopted to analyze the pressure signals of the oil pipeline and then get the singularity points. To locate the…
A VLSI implementation of a data acquisition system processor for failure detection and location inside oil pipelines is presented. The DAQP02 prototype is capable of reading and storing information inside pipelines. With support for two analog…
According to the problems of pipeline leak detection existed in oil transport, a testing and positioning method based on wavelet packet and BP neural network is proposed. A Db4 wavelet packet is used to filter the noises of pressure signals, and…
Leak detection of oil pipelines is an important issue for safe operation of pipelines, reducing oil loss and environmental pollution. A new approach based on principal component analysis (PCA) method to detect leaks of oil pipelines is proposed in…
A new time-frequency analysis method of Hilbert-Huang transform applied in Pipeline leak detection is proposed. Choosing the negative pressure wave signal from dynamic pressure transmitter as research object, the dynamic pressure signal is decomposed…
In this paper, maleic anhydride, EVA, and tetradecyl primary amine were used as raw materials to synthesize an amidated maleic anhydride-EVA copolymer as pour point depressant. The pour point depressant is formulated with a certain amount of enhancer…
In the Beijing-Tianjin-Hebei region, there is a huge gap in the capacity of natural gas peak regulation. Due to the influence of fault development and complex structure in Jizhong Depression, the evaluation of fault sealing ability is the top…
Energy resources have acquired a strategic significance for economic growth and social welfare of any country throughout the history. Therefore, the prediction of crude oil price fluctuation is a significant issue. In recent years, with the…
Water cut detection of crude oil plays a very important role in the petroleum and petrochemical industry. At present, the existing crude oil water cut detection methods include capacitance method, conductance method, radio frequency method, Ray…
In order to meet the demand of real-time data acquisition and analysis in the process of digital PCR detection, this paper proposes a high-speed data acquisition system and design scheme based on FPGA. The system uses FPGA as the signal acquisition…
This special issue is expected to contribute to make this field more open and visible to speech and signal processing experts, presenting the state of the art and the potentiality of the current speech and language technologies to contribute to solve…
The determination of flow state remains an important challenge in non-perennial stream catchments. To identify periods of flow and no-flow, previous studies deployed temperature sensors on streambed surfaces and interpreted the resulting time series…
Near-bit measurement while drilling is the innovative and hot technology in the field of oil drilling and production. The key technology of near-bit measurement includes the design of Electromagnetic wireless transmission and the study about weak…
Now, the demand for natural gas in all walks of life is increasing. Our country has built a large number of natural gas pipelines. The centrifugal compressor is of great significance to the smooth operation of the natural gas pipeline network. Surge…
In this paper, maleic anhydride, EVA, and tetradecyl primary amine were used as raw materials to synthesize an amidated maleic anhydride-EVA copolymer as pour point depressant. The pour point depressant is formulated with a certain amount of enhancer…
A CO concentration analysis system for natural gas was developed based on the diffuse absorption band of CO gas molecules at 1.56m, combined with wavelength modulation and harmonic detection techniques. A long light path gas absorption cell was used…
Sustained annular pressure (SCP) is a common phenomenon in offshore gas fields, which poses a threat to the integrity of gas Wells. Among all the causes, the leakage of tubing string poses the greatest threat to the safety of production. In…
With the increasing of fracturing scale and displacement, the risk of engineering operation is increased because the high friction of string. Therefore, it is very important to predict the friction in fracturing operation. Used the local…
At present, the stable production capacity evaluation of gas reservoirs is mostly numerical simulation, and the heterogeneity and water production of gas reservoirs are considered comprehensively. Taking QXZ gas reservoir producing well in Block SYS…
Now, the demand for natural gas in all walks of life is increasing. Our country has built a large number of natural gas pipelines. The centrifugal compressor is of great significance to the smooth operation of the natural gas pipeline network. Surge…
In all links of natural gas supply, storage and marketing, accurate measurement of flow is one of the most critical links. Due to the high requirements of gas flow measurement for the flow meter measurement system, not only high accuracy of the flow…
In this paper, maleic anhydride, EVA, and tetradecyl primary amine were used as raw materials to synthesize an amidated maleic anhydride-EVA copolymer as pour point depressant. The pour point depressant is formulated with a certain amount of enhancer…
In the Beijing-Tianjin-Hebei region, there is a huge gap in the capacity of natural gas peak regulation. Due to the influence of fault development and complex structure in Jizhong Depression, the evaluation of fault sealing ability is the top…
Magnetic flux leakage (MFL) methods are widely employed for the nondestructive evaluation (NDE) of gas pipelines. The inspection typically generates over 25 GB of compressed data for every 100 mile of pipeline inspected. Currently, the data is…
A new self-adaptive algorithm based on the frequency signal of the moving transmitter was proposed and tested by the experiment, which could identify automatically the dynamic multi-interfaces of gas/oil and oil/water in the crude oil tank, and solve…
Search and rescue satellite-aided tracking (SARSAT) has certain shortcomings which could possibly be ameliorated by employing a more extensive signal processing strategy. The approach proposed is based on partially compensating for the Doppler shift,…
In all links of natural gas supply, storage and marketing, accurate measurement of flow is one of the most critical links. Due to the high requirements of gas flow measurement for the flow meter measurement system, not only high accuracy of the flow…
In this paper, maleic anhydride, EVA, and tetradecyl primary amine were used as raw materials to synthesize an amidated maleic anhydride-EVA copolymer as pour point depressant. The pour point depressant is formulated with a certain amount of enhancer…
In the Beijing-Tianjin-Hebei region, there is a huge gap in the capacity of natural gas peak regulation. Due to the influence of fault development and complex structure in Jizhong Depression, the evaluation of fault sealing ability is the top…
The main aim of the paper is to develop a shared shuttle-based system in order to reduce congestion in cities and thereby reduce carbon dioxide emissions. There are multiple modules in this system but to summarize there exist two databases one…
Pipelines are considered to be a part of the transportation sector. The pipeline industry moves various substances such as crude oil, refined petroleum products, and natural gas within thousands of miles of pipelines. There may be various reasons…
In this paper, maleic anhydride, EVA, and tetradecyl primary amine were used as raw materials to synthesize an amidated maleic anhydride-EVA copolymer as pour point depressant. The pour point depressant is formulated with a certain amount of enhancer…