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Custody Transfer

• A Well to Ship supervisory, control and data acquisition system (SCADA)
• Provides Authorities with a precise knowledge of the entire crude oil transfer process
• Measures both the quantity and quality of the crude oil and gasses.
• Authorities have real-time information about well production, inventory, and custody transfer hundreds of miles from the process.
• By providing a precise measurement, in real-time, across the well to ship process, the LOGOS system overcomes many of the challenges of Crude Oil and Gas Production, Transportation, and Storage.


 

Well Head Production Analysis

CHALLENGE! Multiple production points supply oil to the main pipeline with crude oil flow rates and densities that vary based on what wells are producing at one given time.
CHALLENGE! These variations, along with different contaminants in the oil (sand, entrained gas), create a challenging environment for maintaining measurement accuracy.
CHALLENGE! The requirement for daily over/under pipeline balance accounting requires sustainable flow measurement accuracy at every connection to the pipeline in addition to the required accuracy of the main line meter.
CHALLENGE! Maintaining pipeline gathering throughput is critical to meet demand and any need to drain the line to remove equipment from operation involves costly maintenance and oil disposal procedures.

 

SOLUTION! Coriolis mass flow meter provides a precise picture of the quantity and quality of crude delivered from the well.
SOLUTION! Coriolis meter is not damaged by slugs of air/gas or by sand in the oil which reduces the likelihood of measurement performance degradation or having to stop pipeline flow to perform maintenance. This increases the availability of the pipeline to transport oil, reduces maintenance and eliminates the need for added meter proving.
SOLUTION! Remote/local diagnostics, including advanced features such as meter factor validation or coating detection, can eliminate the need to empty the line for visual inspection.
SOLUTION! Ability to accurately measure density provides a needed variable for standard volume calculation and a process variable that can monitor crude oil quality and/or interface detection.
SOLUTION! All information is transferred digitally for real-time communication with the central station.
Pipeline Leak and Theft Detection for Gas or Crude Oil

CHALLENGE! Pipeline operators face the potential of leaks that statistically occur once every 20 years on short lines and every year on pipelines over 1000 miles long.
CHALLENGE! Economic loss (Property Damage and Theft)
CHALLENGE! Safety (fires, explosions, injuries and fatalities)
CHALLENGE! environment (uncontained hazardous materials) are serious.

 

• SOLUTION! Quick response and an estimate of location and size of the leak/theft will minimize the overall damages incurred.
SOLUTION! Install the ACT-LOGOS system at the end of the pipeline, as well as, intermediate metering stations.
SOLUTION! Because the accuracy of measurement is so precise, the central system can alert the pipeline operator and other authorities that either a leak or theft is occurring.
Custody Transfer for Oil or Gas

CHALLENGE! Whenever Petroleum changes custody from one supplier to the next, it must be accurately measured and scrupulously accounted for.
CHALLENGE! Custodians and regulatory agencies alike have an interest in making sure that transactions are equitable.
CHALLENGE! Meters used for custody transfer must first comply with the applicable OIML (International Organization of Legal Metrology) standards.
CHALLENGE! Loading facilities go from stop to full flow quickly and may contain air in the line or hose.
CHALLENGE! Knowledge of the quality of oil being loaded is necessary to suspend operation if restrictions on water content are not met.

 

SOLUTION! The specified flowmeters are compliant with the following: OIML R-117 (Measuring systems for liquids other than water), OIML R-115 (Direct mass flow measuring system for quantities of liquids), and OIML R-81 (Dynamic measuring devices for cryogenic liquids).
SOLUTION! The specified meters have no moving parts that can be damaged by high velocities of oil resulting from a fast loading operation or slugs of air.
SOLUTION! Density can be used to detect excess water and/or air which can automatically stop the loading process.
SOLUTION! Mass, volume, flow-weighted averages, and instantaneous flowing density are measured in a single device thus providing custody transfer flow measurement, weight of the load, and quality monitoring.
Example of Multiple Low Production Wells
Shown with Tanker Custody Transfer Interface

 

 

 
 

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