The Pressure Drop Calculation of Sea Water Pipe with No Heat Oil and Gas Transferring

This submarine pipeline was used to transport water originally, however, it is an oil-gas mixed transportation pipeline without heat preservation now. Because of the differences between the physical properties of oil-gas and water, we should take the gas and liquid viscosity, density and interfacial tension and other factors into account to establish a new submarine pipeline pressure drop model .In this passage, according to the field data provided by the 20B platform, 20A platform, 251B platform, cb502 platform of submarine pipeline, we apply the methods of comparative analysis and mathematical simulation to establish Beggs-Brill submarine pipeline pressure drop model and the temporary oil-free thermal insulation of the pressure drop and mathematical model, we also make the analysis of a variety of factors impacting on the pipeline pressure drop, including the starting temperature of media, gas liquid flow rates, pipe diameter, angle of inclination，Provide a reference basis to design submarine pipeline.

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Determining Downhole Flow Rates of Oil and Gas in Oil Wells Using Pressure Drop and Spinner Response Measurements

10.2118/20893-ms ◽

1990 ◽

Cited By ~ 1

Author(s):

X.Z. Gang ◽

M. Golan ◽

J. Sveen

Keyword(s):

Pressure Drop ◽

Oil And Gas ◽

Oil Wells ◽

Flow Rates

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Appropriate Separator Sizing: A Modified Stewart and Arnold Method

Modelling and Simulation in Engineering ◽

10.1155/2012/721814 ◽

2012 ◽

Vol 2012 ◽

pp. 1-4

Author(s):

F. Boukadi ◽

V. Singh ◽

R. Trabelsi ◽

F. Sebring ◽

D. Allen ◽

...

Keyword(s):

Pressure Drop ◽

History Matching ◽

Oil And Gas ◽

Slenderness Ratio ◽

Petroleum Industry ◽

Production Equipment ◽

Time Model ◽

Initial Flow ◽

Flow Rates ◽

Valve Pressure

Oil and gas separators were one of the first pieces of production equipment to be used in the petroleum industry. The different stages of separation are completed using the following three principles: gravity, centrifugal force, and impingement. The sizes of the oil droplets, in the production water, are based mainly on the choke valve pressure drop. The choke valve pressure drop creates a shearing effect; this reduces the ability of the droplets to combine. One of the goals of oil separation is to reduce the shearing effect of the choke. Separators are conventionally designed based on initial flow rates; as a result, the separator is no longer able to accommodate totality of produced fluids. Changing fluid flow rates as well as emulsion viscosity effect separator design. The reduction in vessel performance results in recorded measurements that do not match actual production levels inducing doubt into any history matching process and distorting reservoir management programs. In this paper, the new model takes into account flow rates and emulsion viscosity. The generated vessel length, vessel diameter, and slenderness ratio monographs are used to select appropriate separator size based on required retention time. Model results are compared to API 12J standards.

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Identification and characterization of high methane-emitting abandoned oil and gas wells

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1605913113 ◽

2016 ◽

Vol 113 (48) ◽

pp. 13636-13641 ◽

Cited By ~ 59

Author(s):

Mary Kang ◽

Shanna Christian ◽

Michael A. Celia ◽

Denise L. Mauzerall ◽

Markus Bill ◽

...

Keyword(s):

Methane Emission ◽

Oil And Gas ◽

Methane Emissions ◽

Gas Production ◽

Mitigation Strategies ◽

Gas Wells ◽

Emission Data ◽

Flow Rates ◽

Abandoned Wells ◽

Oil Gas

Recent measurements of methane emissions from abandoned oil/gas wells show that these wells can be a substantial source of methane to the atmosphere, particularly from a small proportion of high-emitting wells. However, identifying high emitters remains a challenge. We couple 163 well measurements of methane flow rates; ethane, propane, andn-butane concentrations; isotopes of methane; and noble gas concentrations from 88 wells in Pennsylvania with synthesized data from historical documents, field investigations, and state databases. Using our databases, we (i) improve estimates of the number of abandoned wells in Pennsylvania; (ii) characterize key attributes that accompany high emitters, including depth, type, plugging status, and coal area designation; and (iii) estimate attribute-specific and overall methane emissions from abandoned wells. High emitters are best predicted as unplugged gas wells and plugged/vented gas wells in coal areas and appear to be unrelated to the presence of underground natural gas storage areas or unconventional oil/gas production. Repeat measurements over 2 years show that flow rates of high emitters are sustained through time. Our attribute-based methane emission data and our comprehensive estimate of 470,000–750,000 abandoned wells in Pennsylvania result in estimated state-wide emissions of 0.04–0.07 Mt (1012g) CH4per year. This estimate represents 5–8% of annual anthropogenic methane emissions in Pennsylvania. Our methodology combining new field measurements with data mining of previously unavailable well attributes and numbers of wells can be used to improve methane emission estimates and prioritize cost-effective mitigation strategies for Pennsylvania and beyond.

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Selection and Sizing of Velocity-Actuated Subsurface Safety Valves

Journal of Energy Resources Technology ◽

10.1115/1.3227856 ◽

1980 ◽

Vol 102 (2) ◽

pp. 82-91

Author(s):

H. D. Beggs ◽

J. P. Brill ◽

E. A. Proan˜o ◽

C. E. Roman-Lazo

Keyword(s):

Pressure Drop ◽

Gas Flow ◽

Oil And Gas ◽

Design Criteria ◽

Gas Wells ◽

Flow Rates ◽

Oil And Gas Wells ◽

Offshore Oil And Gas ◽

Offshore Oil ◽

Selection Of

Subsurface safety valves (SSSVs) are installed in offshore oil and gas wells to shut in the wells in case of pressure loss at the wellhead. The selection of these SSSVs requires prediction of the oil and gas flow rates at which the valve will close. A study was performed to improve the design criteria used in the selection. Improved correlations were developed to predict pressure drop across a SSSV as a function of flow rates, and the pressure drop at which a SSSV will close.

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Experimental Investigation of Pressure Drop of Gas/Non-Newtonian Flow in Horizontal Pipes

Volume 11: Petroleum Technology ◽

10.1115/omae2020-18704 ◽

2020 ◽

Author(s):

Faraj Ben Rajeb ◽

Mohamed Odan ◽

Syed Imtiaz ◽

Yan Zhang ◽

Mohamed M. Awad ◽

...

Keyword(s):

Pressure Drop ◽

High Speed ◽

Oil And Gas ◽

Flow Behavior ◽

Pressure Sensors ◽

Newtonian Flow ◽

Two Phase ◽

Point Pressure ◽

To Come ◽

Gas Liquid Flow

Abstract Two-phase flow of gas/non-Newtonian fluid through pipes is commonly occurred in chemical industry and oil and gas refinery. Many correlations have been developed to evaluate pressure drop for non-Newtonian fluids. Based on that, these systems are not governed by Newtonian law of viscosity. However, only little experimental work has been devoted to study non-Newtonian flow behavior. In this present work, experimental setup has been conducted to investigate non-Newtonian two-phase (gas/ liquid) flow through pipes. Several concentrations of Xanthan Gum have been used as non-Newtonian liquid in the experiments and compressed air has been used as a gas. The flow rate and pressure of liquid and gas are changed by using a pump placed ahead of the mixing point. Pressure and temperature values are recorded by pressure sensors and thermocouples fixed at specific points along the pipe loop. Results of theses experiments are leaded to come up with experimental model for pressure drop of gas/non-Newtonian flow in pipes. Moreover, the flow regimes of two-phase gas/non-Newtonian flow at different conditions have been visualized through transparent tubes using a high-speed camera.

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