Update: I should have also mentioned that Rossella will be conducting an October 15 webinar, Optimizing Wellpad Custody Transfer of Liquid Hydrocarbons. If you’re in the onshore oil & gas industry, you’ll want to register and bring your custody transfer questions.
The custody transfer process exchanging oil & gas production between business entities is a critical part of the overall production process. I received this question to an earlier post, How to Prove Your LACT Meter:
I was wondering if you could explain the difference between Base Volume and Base Prover Volume when proving meters.
In that post, Emerson’s Rossella Mimmi shared how provers were used to compare a known volume against the Lease Automatic Custody Transfer (LACT) unit’s flow meter output, where the ratio between the prover reference volume and the meter reading is the meter factor, which is used to correct the meter reading.
I shared this question with Rossella and asked her if she could help me explain the difference. She explained:
I think the question refers to how the meter factor is calculated, dividing the prover reference volume by the base volume. Basically two quantities are compared, one is the volume actually measured by the flow meter, the other one is a reference known volume that is the prover’s one.
This is a prover’s operating principle:
The prover consists of a length of pipe whose internal volume has been very accurately determined; the displacer is forced to travel at the same velocity as the liquid in the pipe. During meter calibration the meter and the prover are connected in series so that the volume swept out by the piston or sphere can be compared with the volume registered by the meter whilst liquid is flowing steadily from one to the other. As the displacer enters the calibrated pipe section it trips a detector, thereby initiating a count of pulses from the meter under calibration. Continue Reading ▶
Author: Robert Ferris, Ph.D.
Nanotechnology-enabled products are offering real value in equipment reliability
Reliability is the hot-topic in the automation world right now. Nearly every major company, ranging from BHP Billiton, BP, or BASF, has identified process reliability as essential for long-term productivity and profitability. Everybody wins when you improve plant reliability; there is increased production, safety, and lower operating costs. This means more revenue, more margin, and happier workers. Isn’t that nice.
Reliability, however, is a hard fought battle to gain sustainable improvements. Usually a step change in reliability requires a systematic change in how the plant operates, including; cross-disciplinary initiatives, operation practices, maintenance scheduling, inventory management, documentation, and even equipment suppliers. Continue Reading ▶
Author: Douglas Morris
Recently, the consulting arm of Black & Veatch published its annual strategic directions report for the US utility industry. In 2014 “reliability” was again identified as the top industry concern. This report discusses how technology will play an important role for utilities as they look to improve upon asset reliability.
The industry has always had some play with this discipline; in fact, most plants had staffs dedicated to the practice of reliability. As utilities cut back staffing over time, though, many of these departments disappeared and the focus was suddenly absent. When most fossil plants ran as originally intended, this didn’t pose a large problem. Times have changed and now with the growing number of renewables along with gas plants being cycled on a regular basis, former baseload plants are increasingly running in load following mode, subjecting these units to greater thermal cycling and more stress on mechanical equipment.
As the B&V report states, technology can be the tool that helps utilities achieve better reliability. Per the report: Continue Reading ▶
In 2011, the U.S. Food & Drug Administration (FDA) published their Guidance for Industry – Process Validation: General Principles and Practices. A PharmManufacturing.com article, A Framework for Technology Transfer to Satisfy the Requirements of the New Process Validation Guidance: Part 2 shared the impact on the Life Sciences industry:
Manufacturing Execution Systems (MES)
In the life of any drug product, the technology transfer of a process is a complex matter, made more complicated by the new definition of the Process Validation (PV) guidance issued by FDA in January 2011.
and ISA standards can help pharmaceutical and biotech manufacturers streamline the technology transfer process throughout the drug development lifecycle. Emerson’s Zuwei Jin
noted that solving the challenges associated with this complexity has received more and more attention among engineering companies and equipment and instrument suppliers.
Zuwei believes that early adoption of MES, as defined in ISA-95 (S95), a standard addressing the enterprise control system interface, and ISA-88 (S88), a standard addressing batch process control, provide a framework for implementing not only the technical but also the regulatory and business processes required to support the tech transfer and expansion throughout the drug development cycle. It is a key element in introducing a scalable, modular, hardware independent platform for drug development and data management. Continue Reading ▶