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Composite sampling of fluids

A fluid, non-composite technology that can be used in sampling, sampling devices, instruments, etc. to solve problems such as limited analysis

Inactive Publication Date: 2015-01-28
SGS NORTH AMERICA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While containers and terminal facilities have testing capabilities to perform this compositional analysis of LNG, such analysis is often limited and, for simplicity, the entire cargo can be falsely assumed to be very homogeneous in composition

Method used

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  • Composite sampling of fluids
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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] figure 1 The analyzer 100 shown schematically in FIG. 2 can be used to collect and analyze local and composite samples of fluid flowing through pipelines according to standards known in the art, such as ASTM D1945, GPA 2261, D2163, and ISO 8943. Analyzer 100 can be used to evaluate properties such as composition (e.g., C1 to C5 hydrocarbons, C6+ hydrocarbons), BTU value, specific gravity, and Wobbe index, and properties such as CO 2 and N 2 the presence of impurities. The fluid may be, for example, liquefied natural gas (LNG), natural gas, liquefied petroleum gas (LPG), chemical gases (e.g., hydrocarbon gases, specialty gases, and landfill gases), shale gas, gas turbine fuel gas, well test gas, Compressed gas liquid (CGL), etc.

[0028]The analyzer 100 can be used for on-site, real-time determination of commercial value of fluids (e.g., assessment or confirmation of ship / shore value or aging of LNG), assessment of pipeline quality, and gas blending (e.g., of natural ...

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Abstract

Composite sampling of a fluid flowing through a conduit includes collecting, in a vessel coupled to the conduit through which the fluid is flowing, a first discrete sample of fluid from the conduit, the first discrete sample having a first selected volume, and collecting, in the vessel and at a first interval from the first sample, a second discrete sample of the fluid from the conduit, the second discrete sample having a second selected volume, thereby forming a composite sample in the vessel while the vessel is coupled to conduit. The composite sample includes the first discrete sample and the second discrete sample, and may include one or more additional discrete samples. An apparatus for collecting the composite sample includes a gas chromatograph, and is arranged such that the composite sample is provided to the gas chromatograph without removing the composite sample from the apparatus or transporting the composite sample.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Patent Application Serial No. 61 / 591,809, entitled "Composite Sampling of Fluids," filed January 27, 2012, which is incorporated herein by reference in its entirety middle. technical field [0003] The present disclosure relates to the formation and analysis of composite samples of fluids. Background technique [0004] Analysis is performed on various fluids passing through pipelines to evaluate various characteristics of that fluid, including composition, impurity levels, and more. One example includes compositional analysis of liquefied natural gas (LNG) to determine its commercial value. Many natural gas reservoirs are discovered in remote locations or offshore locations, and natural gas is transported via LNG ships to market areas around the world. Natural gas is transported under the condition that the allowable volume ratio is 600 times that of the product under standar...

Claims

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Application Information

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IPC IPC(8): G01N30/06G01N1/26G01N1/10G01N1/00
CPCG01N30/06G01N33/225G01N2001/1093G01N2001/105G01N1/2247G01N1/22G01N30/28G01N30/02G01N1/24G01N2030/025
Inventor W·A·克里尔S·拉泰里
Owner SGS NORTH AMERICA INC
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