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Planning and Scheduling

Resolution can manage many levels of planning information from an annual volumetric plan all the way down to a detailed daily schedule. In between are several intermediate levels. Each level uses a different, yet consistent, model of the business. Long term planning is looking at multiple months, scheduling multiple days and operational is looking at what has actually occurred. Resolution's Repository database can store all levels of planning information and provide the ability to actively compare one against another.

Features
  • Physical not logical model - database understands about pipelines, tanks, terminals, materials, lineups.
  • Planning information represented as planned movements or operating modes
  • Direct comparison available with real-time data
  • Key Plan vs. Actual comparisons can be created as Key Performance Indicators (KPIs) that can be alerted immediately on non-conformance
  • Historical schedules and multiple versions can be saved
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Planning & Scheduling
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Solomon Indicators
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Integrated Planning Scheduling and Accounting

Repository can form the backbone of an integrated planning, scheduling and accounting system, managing the data requirements for:

  1. Supply Planning: Establishing an intermediate plan for the feedstock acquisitions, and supply schedule.
  2. Plant Production Planning: Establishing a, probably, monthly plan that determines the feedstock arrivals, plant feed and production rates.
  3. Unit and Inventory Scheduling: Determining a schedule for the operation of each unit.
  4. Unit Target Setting/Blend Recipe Setting: Establishing a precise target for each unit during a particular schedule.
  5. Unit Optimization/On-line Blend Optimization: The on-line adjustment strategy to ensure that the unit or blend operates according to the target or blend recipe.

 

Repository provides consolidated information to allow reconciliation of actual versus plans/schedules/targets in the following functions:

  1. Process Unit Monitoring: Comparison on either a fixed term basis (shift or day) or particular operating period/schedule/mode of actual against target.
  2. Yield Accounting: Comparison of the unit production rates together with the inventory transactions against the unit and inventory schedule.
  3. Plant Production Accounting/Oil accounting: Comparison of the actual inventory transactions against the Plant Production Plan.
  4. Supply and Production Plan Reconciliation: Reconciliation of the supply and production plan against the actual supplies and productions. Primarily used to verify the plan basis and accuracy.

Typical Gantt display showing the output of a scheduling tool being compared to actual movement information captured from operational systems.

In order to support applications such as schedule optimizers, LP's, and simulation models, Repository manages the following information:

  1. Feedstock Qualities (assay data): a comprehensive description of each feedstock.
  2. Intermediate and Product Stream Qualities: a comprehensive quality description of each of the 'standard' intermediates that appear as unit products within the data-book.
  3. Process Unit Standard Modes: a library of standard unit operational settings, usually associated with a particular feed.
  4. Data-book: definition of the product yields of each unit given combinations of feeds and product qualities together with a particular operating mode.

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