Dynamics of pig motion in gas pipelines
WebMar 9, 2024 · Pipeline inspection gauge (pig), as a kind of pipeline robot, is commonly used in oil and gas pipelines during different stages of operation to perform functions such as dewatering, cleaning and inspecting. Predicting the motion of a pig to estimate its velocity, position and required driving pressure is essential before pigging. A precise … WebNov 1, 2009 · The pigging operation is a common practice in the petroleum and gas industry. Pigging flow lines is employed for many reasons including cleaning deposits such as wax layers, the removal of liquids and condensate, the separation of products pumped one after the other in the same pipeline, measurement, and control and flow line …
Dynamics of pig motion in gas pipelines
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WebFeb 7, 2024 · Pigging is a common operation in the oil and gas industry. Because of the compressibility of the gas, starting up a pipeline inspection gauge (pig) from a stoppage can generate a very high speed of the pig, which is dangerous to the pipe and the pig itself. Understanding the maximum speed a pig achieves in the restarting process would … WebThe derivation and solution of the two and three dimensional dynamic equations for a small pipeline inspection gauge (Pig) through a liquid pipeline is the main aim of this work. These equations can be used for synthesis of speed controller of a pig by using a bypass port in Pig. Momentum and energy equations are employed to study the influence of flow field …
WebNov 6, 2024 · The velocity of the pig depends on the flow dynamics and the pig’s flowing characteristics. This paper presents a mechanical model for the pig motion, along with a numerical scheme, to obtain approximate solutions for the resulting initial-boundary-value problem that describes the pig motion in a transient gas/liquid-flow inside the pipeline ... WebJun 1, 2024 · The transportation of fluids in long pipelines occurs very often in the oil and gas industries. To keep high efficiency and productivity in pipeline operations, a device called pig is routinely passed throughout the pipeline for the purpose of cleaning, inspection, sealing, corrosion evaluation, among others, despite the uncertainties and …
WebJun 1, 2024 · The transportation of fluids in long pipelines occurs very often in the oil and gas industries. To keep high efficiency and productivity in pipeline operations, a device called pig is routinely passed throughout the pipeline for the purpose of cleaning, inspection, sealing, corrosion evaluation, among others, despite the uncertainties and … WebModelling pig and pig train dynamics in gas pipelines requires a solution to two equations: - 1. The continuity equation (The change in mass of a control volume is equal to the flow in ... pig in a high pressure gas (100 bars). The pig motion is more damped in the higher pressure line. As the gas pressure increases, then the control gets better ...
WebMar 1, 2015 · Abstract. This paper deals with the dynamic analysis and simulation of long pig through the two-dimensional gas pipelines. In the modeling, the pig's length is … citgo supergard full synthetic motor oilsWebthe PIG dynamics flowing in natural gas pipeline. Xu and Gong [11] predicted the pigging operation in gas-condensate horizontal pipelines with low liquid load-ing, which couples … citgo stations ctWebJul 15, 2024 · The pipeline inspection gauge (PIG, lowercase pig is commonly used) with a bypass valve is widely used in pipeline inspection because it operates at a low speed without reducing the flow rate. … diane\u0027s bakery-cafeWebThis paper deals with dynamic analysis of Pipeline Inspection Gauge (PIG) flow control in natural gas pipelines. The dynamic behaviour of PIG depends on the pressure differential generated by injected gas flow behind the tail of the PIG and expelled gas flow in front of its nose. To analyze dynamic behaviour characteristics (e.g. gas flow, the PIG position and … diane\u0027s bakery cafe roslynWebDOI: 10.1016/j.jngse.2024.103059 Corpus ID: 209730811; Characterization of bypass pig velocity in gas pipeline: An experimental and analytical study @article{Chen2024CharacterizationOB, title={Characterization of bypass pig velocity in gas pipeline: An experimental and analytical study}, author={Jianheng Chen and Limin He … citgo supergard full synthetic motor oilWebThe motion of a PIG mainly is said to be a function of pressure difference (ΔP), by which the fluid inside the pipeline drives the PIG in the direction of the positive pressure gradient. In this method of controlling the speed of PIG, pressure transducers are installed at the outer surface of the pipelines. diane\\u0027s bakery silver cityMost pigging operations in gas pipelines are performed at normal operating … Nguyen et al. (2001a) proposed a computational scheme using method of … ANALYSIS For the gas phase a quasi-steady-state flow is assumed. The gas … citgo supergard sea and snow