Our task: Enabling safe and effective operations

Siemens Process Safety Consulting offers technical expertise to industry challenges and solutions in maintaining the robustness of your facility while reducing risk, optimizing cost and helping ensure compliance.

Our goal: Local support on a global scale

Our reputation is backed with decades of experience serving midstream and upstream oil and gas, refining and petrochemical companies worldwide. With a best-in-class global customer support structure, local support offices and remote services ensuring support even at the most remote locations.

Our offer: Comprehensive engineering services and industry-driven solutions

design engineering

Trusted advisor for your last line of defense

Pressure relief and disposal systems serve as a critical piece of your facility’s safety system and are the last line of defense against catastrophic equipment failures. With constant changes in a facility each year from safety initiatives or capital projects to changing corporate, local, or federal regulations or acquisitions can make it difficult to keep your relief system documentation up-to-date.

Siemens relief and disposal system consultants are experts in pressure relief analysis standards and guidelines such as OSHA 1910.119 (d), API 520, API 521, API 2000 and are contributing members for many API standards and recommended practices. With our expert knowledge, a comprehensive pressure relief analysis may mean:

  • Increased efficiency in HAZOPs, PHAs and MOC evaluations

  • Maintenance cost reductions

  • Identification of design failures resulting in loss of product

  • Identification of opportunities for inherently safer design

Core Capabilities

  • Comprehensive Pressure Relief Analysis (PRA)

  • Engineering services providing risk assessment and mitigation plans for concern resolution

  • Flare analysis and conceptual flare header design

  • Flare Quantitative Risk Analysis (QRA)

  • Dynamic simulation

  • MOC Support and evergreening

  • Third-party auditing

  • Guideline development

  • Pressure Relief Analysis and Flare Analysis Best Practices Training

  • Software implementation for Process Safety Pressure Protection Manager™, PSPPM™

For more information regarding Relief and Disposal System Services, please contact Siemens at

Oil and Gas Manager™ (OGM™)

OGM is an industry leading software driven by process simulation for feasibility evaluation, concept selection and design, and cost estimation of upstream and midstream oil and gas development and brownfield projects.

OGM, unlike competitor software, is a one-of-a-kind program offering a rapid first principles-based approach implemented by major oil and gas companies worldwide.

With OGM, Owner/Operators, EPC’s and consulting firm’s pain points are minimized with:

  • Pre-defined facility templates – quickly generate early phase sizing and cost estimating

  • Capability for a single user or small team to evaluate conventional field development concepts

  • Existing facility modeling – allowing users a first pass analysis for facility upgrades (size and cost)

OGM can be applied during the following project phases:

  • Prospect evaluation

  • Concept screening

  • Conceptual engineering

  • Front end engineering

  • Detail engineering

  • Construction phase or existing facility

Core Capabilities

  • Offshore and onshore field development concepts

  • Field development building block design

  • Building block approach to process design

  • Built-in process simulator

  • Reservoir profiling

  • Brownfield case evaluation

  • Centralized and customizable cost database

  • Pre-formatted and customized reporting

Frequently Asked Questions

When is the best time to use Oil & Gas Manager?
OGM is designed to be used through all upstream project stages, with a primary purpose of supporting and accelerating the assess, appraise, and select phases. Latter project stages can benefit from OGM as a what-if tool, incorporating late design and data impacts such as well surprise, weight report and as-built information during the construction phase. The operations phase can also utilize OGM both in planning for operations through use of the production profile modeler and operational cost model, and in analysis of the existing facility, including brownfield and debottlenecking work.

How can OGM help my company make field and development planning decisions?
OGM provides a consistent and auditable approach to the capital appropriation process (also sometimes called value assurance), which progressively allocates larger amounts of capital as the project becomes better defined. The variability of information in early project stages requires a flexibility and rapid deliverable preparation that only OGM can provide – helping your company make the best decision in the most efficient manner.

We already use a similar software. Why should I switch to OGM?
Most of our competitors’ products can be used only as a cost estimate tool, while OGM is ultimately a design tool. Of similar products used in the concept selection process, only OGM provides first principles-based equipment sizing. The production fluid-based approach allows technical quantities to be calculated, which are then combined with unit rate and commodity pricing information to produce the cost estimate. The level of detail available for process and utility systems, pipelines, substructures, and other field objects allow the development planner or project engineer numerous ways to adjust the model to account for local variability, benchmark data, and other influences. All cost outputs can then be traced back to the relevant user inputs, calculated technical quantities, and unit rate values, thereby avoiding the black box approach of most early phase cost estimate methods.

What is OGM’s accuracy rate?
A first pass estimate using OGM “out of the box” typically provides results in the 35-40% range, which is entirely appropriate for early concept work. By employing methods such as benchmarking and review of localized cost inputs, the accuracy range can be improved. Several clients have recently reported accuracies in the 10-15% range when using these methods. It should be noted that in early phases, fluid data and other inputs are provided at a relatively low confidence level. As the confidence level of inputs improves, naturally the variability of results will decrease.

For more information regarding OGM or to request a product demonstration, please contact Siemens at