Gas-Leak
Gas-Oil-Water Leak Calculation
無料
7.0for iPhone, iPad and more
Age Rating
Gas-Leak スクリーンショット
About Gas-Leak
Gas-Leak provides quick and accurate estimates of leak-rates of Natural Gas, Crude Oil or Water from piping and equipment given hole-size (or seal-leak) with given operating pressure and temperature, assuming the leak is to the atmosphere.
The Gas-Leak app is provided as a tool for use in an onshore plant or offshore oil and gas installation. The app gives quick and accurate estimates of leak rates of gas and oil from piping and equipment cracks, holes, seals directly on your iPhone without having to run simulations on a desktop/laptop computer.
For natural gas the assumption is that the pressure difference across the leak-point (hole) is large enough to cause critical flow across the hole. Flow-rate is calculated based on restriction orifice correlations, i.e., sonic velocity exists at the leak-point orifice and further decrease in the upstream and downstream pressures ill not change the leak-rate.
For natural gas, the app also displays a table of expected fugitive emission rates from equipment based on a publication by the Canadian Association of Petroleum Producers (CAPP) and a description of where leaks are likely occurring for each piece of equipment.
For liquids, critical (choked) flow occurs when a cavitation barrier exists across the leak-point (hole) and the downstream pressure (atmospheric) is below the liquid vapor pressure. At this point the liquid will start to flash into bubbles of vapor. For crude oil below about 35 degree and water, the vapor pressure will normally be less than atmospheric pressure. Therefore, in this app, if vapor pressure is found to be lower than atmospheric pressure, the flow-rate is calculated based on control valve pressure drop calculations as defined in the documentation of the app (download from URL).
The app also lets the user select US-Customary or SI-Metric units.
The Gas-Leak app is provided as a tool for use in an onshore plant or offshore oil and gas installation. The app gives quick and accurate estimates of leak rates of gas and oil from piping and equipment cracks, holes, seals directly on your iPhone without having to run simulations on a desktop/laptop computer.
For natural gas the assumption is that the pressure difference across the leak-point (hole) is large enough to cause critical flow across the hole. Flow-rate is calculated based on restriction orifice correlations, i.e., sonic velocity exists at the leak-point orifice and further decrease in the upstream and downstream pressures ill not change the leak-rate.
For natural gas, the app also displays a table of expected fugitive emission rates from equipment based on a publication by the Canadian Association of Petroleum Producers (CAPP) and a description of where leaks are likely occurring for each piece of equipment.
For liquids, critical (choked) flow occurs when a cavitation barrier exists across the leak-point (hole) and the downstream pressure (atmospheric) is below the liquid vapor pressure. At this point the liquid will start to flash into bubbles of vapor. For crude oil below about 35 degree and water, the vapor pressure will normally be less than atmospheric pressure. Therefore, in this app, if vapor pressure is found to be lower than atmospheric pressure, the flow-rate is calculated based on control valve pressure drop calculations as defined in the documentation of the app (download from URL).
The app also lets the user select US-Customary or SI-Metric units.
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最新バージョン 7.0 の更新情報
Last updated on 2021年02月17日
旧バージョン
Upgraded to latest IOS SDK
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme for Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme for Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
Show More
Version History
7.0
2021年02月17日
Upgraded to latest IOS SDK
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme for Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
Added 'Share' button to enable sharing, saving, printing of results
Changed color-scheme for Dark Mode
Updated layout and fonts to work better with iPads (better layout/larger fonts)
6.0
2019年09月19日
New version upgraded to also include Crude Oil and Water Leak calculations in addition to Natural Gas.
4.0
2018年03月04日
Minor bug-fix.
3.0
2017年11月13日
Operates in both portrait and landscape modes
Added estimated calculations for seal-leaks
Added 2nd view-controller with expected Fugitive emissions from equipment in oil and gas industry
Added estimated calculations for seal-leaks
Added 2nd view-controller with expected Fugitive emissions from equipment in oil and gas industry
2.1
2017年06月06日
Resolved issue with date not updating to correct date.
2.0
2017年05月24日
Options to select US-Customary or SI-Metric units.
1.0
2017年03月01日
Gas-Leak FAQ
ここをクリック!地理的に制限されているアプリのダウンロード方法をご参考ください。
次のリストをチェックして、Gas-Leakの最低システム要件をご確認ください。
iPhone
iOS 12.1以降が必要です。
iPad
iPadOS 12.1以降が必要です。
iPod touch
iOS 12.1以降が必要です。
Gas-Leakは次の言語がサポートされています。 英語