How PRDewPointV1 can help you solve problems
- Calculate HCDP for Detailed Gas Analysis --- Input composition and pressure, output HCDP (Hydrocarbon Dew Point)
- Calculate HCDP for Gas Analysis with Lumped Hexanes Plus --- Input composition, Hexanes Plus molecular weight and pressure, output HCDP (Hydrocarbon Dew Point) and Hexanes Plus estimated composition
- Match Measured HCDP --- Input Measured HCDP, composition (including Hexanes Plus mole percent) and pressure, output Hexanes Plus estimated composition which matches Measured HCDP (Hydrocarbon Dew Point)
- Calculate HCDP using Hexanes Plus estimated composition at any pressure --- Input estimated composition and pressure, output HCDP (Hydrocarbon Dew Point)
PRDewPointV1 Key Features
Why PRDewPointV1 was developed
In 2000, prior to initiation of the API 14.1 program of experimental measurements of natural gas dew points at Southwest Research Institute, SAI founder Ken Starling served as a consultant in development of the research plan, a role he had previously played in 1985, prior to the dew point and liquid drop out measurements sponsored by Gasunie Research in the Netherlands.
Following the progress of both of these research projects disclosed the need for a reliable method for accurate calculations of dew points for natural gases in operating gas pipelines. The commonly used three step method of sampling, analysis and calculation can encounter undetected errors at each step. Sampling is difficult, accurate analysis is difficult and the resultant calculations of dew point and/or condensed liquid are uncertain.
The method developed and used in PrDewPointV1 is to combine the direct measurement of dew point and the gas analysis so that the hexanes plus portion of the gas analysis is adjusted to match the measured dew point. This adjustment of the portion of the gas analysis which has the largest uncertainty yields calculation results in the region of the dew point which have much lower uncertainty than the commonly used three step method. This method was first presented in the paper “Peng-Robinson Equation of State Natural Gas Dew Points,” by Kenneth E. Starling, AGA Operations Conference, Orlando, 2003.
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Additionally, the executable program PRDewPointV1.exe, when launched, populates all of the inputs, including the gas composition referred to as “Gas A” in the paper, “Peng-Robinson Equation of State Natural Gas Dew Points,” by Kenneth E. Starling, AGA Operations Conference, Orlando, 2003. The executable program is a Windows-based program which uses the dynamic link library PRDewPointV1.DLL to calculate natural gas dew points and/or determine the hexanes plus component distribution to match a measured dew point. The executable program PRDewPointV1.exe can be launched by clicking “PRDewPointV1.exe” in the PRDewPointV1 folder on the Start | All Programs taskbar. Alternatively, opening the subdirectory folder containing PRDewPointV1.exe and double clicking on the PRDewPointV1 icon will open the PRDewPointV1 application. Either method for opening the PRDewPointV1.exe application will display the following screen.
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Licensing options: 1 year or 3 year
| Product ID | License Type | License Fee Base | License Fee per Seat | Minimum Total Fee | Buy Now |
|---|---|---|---|---|---|
| PRDewPointV1/SL | Licenses locked on individual computers | $500 | $500 | $1,000 |  |
| PRDewPointV1/HL | Licenses on USB keys for use by multiple computers | $600 |
$600 | $1,200 | |
| PRDewPointV1 Site License | Company-wide* installation on personal computers | $19,000 | |
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| PRDewPointV1/Server/IN | Licenses on intranet server: 1-100 seats | $3,000 | $160 | $3,160 | |
| PRDewPointV1/ Server/UL | Licenses on intranet server: 101-unlimited seats** | $19,000 | |
| Product ID | License | License Fee Base | License Fee per Seat | Minimum Total Fee | Buy Now |
|---|---|---|---|---|---|
| PRDewPointV1/SL | Licenses locked on individual computers | $1,000 | $1,000 | $2,000 | |
| PRDewPointV1/HL | Licenses on USB keys for use by multiple computers | $1,200 |
$1,200 | $2,400 | |
| PRDewPointV1 Site License | Company-wide* installation on personal computers | $53,000 | |
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| PRDewPointV1/ Server/IN | Licenses on intranet server: 1-100 seats | $3,000 | $500 | $3,500 | |
| PRDewPointV1/ Server/UL | Licenses on intranet server: 101-unlimited seats* | $53,000 | |
*Company is a single legal entity.
**Installation is for a single server. Number of seats may be limited by company's server capacity.
Licensing options for PRDewPointV1:
1. PRDewPointV1/SL software licensing and security utilizes Sentinel HASP SL, a product of SafeNet, Inc. which provides a SL (softlock) license installed on each individual licensed computer.2. PRDewPointV1/HL software licensing and security utilizes Sentinel HASP HL, a product of SafeNet, Inc., which provides a HL (hardlock) license installed on a USB hardware key. Consequently, the PRDewPointV1 software installed on any computer will run successfully when the HL USB key is present in one of the computer’s USB ports. Thus, the PRDewPointV1 HL license is portable; the HL USB key can be passed from one computer to another as a matter of convenience and flexibility.
3. PRDewPointV1/Server/IN software licensing and security utilizes Sentinel HASP SL, a product of SafeNet, Inc., which provides a SL (softlock) license with a licensed number of concurrent users (licensed seats) installed on a single licensed company server. Consequently, the PRDewPointV1 software installed on any company networked computer will run successfully when a licensed seat is available on the licensed company server. Thus, a great amount of flexibility is provided, because the PRDewPointV1 software can be installed on many more company networked computers than the licensed number of concurrent users. An additional feature of PRDewPointV1/Server/IN software licensing is the fact that license seats can be detached from the licensed server and installed on individual company computers which may be unable to connect to the licensed server. Clearly PRDewPointV1/Server/IN software licensing offers a licensing company a lot of flexibility.
4. PRDewPointV1/Server/UN is identical to PRDewPointV1/Server/IN except that it is intended for 101 to an unlimited number of license seats. The number of license seats may, however, be limited by a company’s server capacity.