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Title: Writing Comprehensive Sampling Procedure Acceptable To A Companys Legal Department
Author: David Bromley
Source: 2008 Natural Gas Sampling Technology Conference
Year Published: 2008
Abstract: We live in a litigious environment therefore, there is more focus on gas sampling today then there ever has been in this industry. With this increased focus comes additional interest from the company legal department. Currently, there is legislation in Washington regarding sampling, states are adopting rules governing measurement of natural gas, ongoing court cases, and the Bureau of Land Management is expressing an interest in gas sampling procedures. The winter of 2001 brought on new challenges to the natural gas sampling industry. Relative to liquid gas, prices for natural gas increased to a level where the heavier components held more value if kept in the form of natural gas. Operating companies ran economics, and made decisions to by-pass processing plants, in order to optimize the value of their product. Pipeline and distribution companies were then faced with issues related to liquid fallout in their systems. Pipeline companies started to lower their tariff levels on cricondentherm, which forced regulatory groups within the operating companies to get involved in hearings before FERC. The API and GPA standards were modified to include much more emphasis on heating and to assure that a more accurate representative sample was being obtained. As a result, many in the industry were introduced to new terms, such as, hydrocarbon dew point and cricondentherm. There were, and still are, issues regarding how to accurately determine the cricondentherm of a flowing gas stream. Many calculate the cricondentherm based upon the analysis of a gas sample. The slightest error in sampling can change the calculated cricondentherm 20 F therefore, obtaining an accurate representative sample is critical in todays environment and makes the sampling procedure process that much more important.

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