iFluids Engineering and Consultancy WLL was awarded to perform HAZID study for EPIC various facilities of Qatar Energy, including:
- HAZID Study for Qatar Gas Barzan Gas Plant (ISBL) to support Package-1
- HAZID Study for reuse and recycle treated QG1 and PMP wastewater streams
- HAZID Study – FEED for LR2 capacity enhancement to 100%
What is HAZID Study?
The HAZID study is designed to emphasize the significance of Health, Safety, and Environmental (HSE) considerations in the crucial decisions made at the early stages of development projects, such as determining design concepts and project locations. It serves as the initial occasion to bring together seasoned line personnel and HSE staff to promptly address the various issues associated with a new venture, development, or modification project. To know more Click Here
Case Study 1 – HAZID Study for Qatar Gas Barzan Gas Plant (ISBL) to support Package-1
Qatar Petroleum (QP) is planning to establish a new Liquefied Petroleum Gas (LPG) Bottling Plant. The project consists of three packages and the focus will be on Package 1.
Within Package 1, propane and butane will be sourced from Barzan Gas Plant and Pearl GTL facilities and will be metered at a new blending station located on a plot currently inside Barzan Gas Plant adjacent to QP Station A4. The blended LPG will be transferred via a pipeline to the new LPG bottling plant where it will also be metered.
The scope of QatarGas within Barzan Gas Plant (ISBL) to support Package-1 is as below;
- Tie-in/take off from the existing common run-down headers within Barzan
- From the take-off point, install new piping, route through the pipe rack and terminate 1m outside the Barzan plant fence with appropriate positive isolation valves to allow QP to perform the tie-in as part of their OSBL scope.
The objective of this project is to supply pipelines that will improve network resiliency in case of failure of the existing facility.
Case Study 2 – HAZID Study for reuse and recycle treated QG1 and PMP wastewater streams.
The primary objective of the HAZID study was to assess the hazards and impacts of the proposed project on health, safety, environment and the company’s reputation.
Qatargas Operating Co. Ltd (QG1) is a fully integrated facility comprising of three (3) LNG process trains delivering approximately 10 million tons per annum of LNG. The wastewater produced by QG1 is currently treated through an MBR unit at an existing QG1 WWTP before being reused as irrigation water.
The objective of the project is to carry out a comprehensive study and develop FEED (Front End Engineering Design) work of the proposed facilities with modifications to the original FEED already performed including associated systems and develop the (Engineering, Procurement and Construction) EPC package to enable COMPANY to further proceed with EPC. QGWP objective is to reuse and recycle treated QG1 and PMP wastewater streams in compliance with environmental regulations set by the MME.
The HAZID study was formulated with a specific focus on emphasizing the significance of health, safety, and environmental concerns in the fundamental determinations made during the initiation of all developmental undertakings (e.g. design concept and location). HAZID is the first opportunity to collect experienced line and HSE staff together to address, in a short timeframe, the issues surrounding a new venture or development or modification project.
Case Study 3 – HAZID Study FEED for LR2 capacity enhancement to 100%
The HAZID study was carried out by IFLUIDS Engineering & Consultancy W.L.L. to perform FEED study to Debottleneck LR2 Facilities for 110% of current U-12 design capacity with minimum modification for the current condensate quality including EPC Scope of work and Amine Regeneration Unit (U-18) adequacy check for 110% of LR2 capacity. The primary objective of this study was to assess the hazards and impacts of the proposed project on health, safety, environment and the company’s reputation.
The HAZID study meeting was conducted online through Teams meeting involving personnel from Qatar Gas, Chiyoda Almana Engineering L.C.C. and iFluids Engineering & Consultancy W.L.L. This report is based on the discussion held during the meeting. The prepared report addresses various hazardous issues related to the facilities subjected to HAZID study.
The Condensate Fractionation Unit 12 is designed to separate condensate into:
- An Overhead LPG and Naphtha intermediate which is further processed in the Naphtha Hydrotreater Unit 15 (NHT) and then in the Saturation Gas Plant Unit 13.
- A straight run Kerojet intermediate, which is further processed in the Kerosene Hydro treating Unit 16 (KHT).
- A Light Gas Oil intermediate, which is sent to Diesel Hydro treating Unit 29 (DHT).
- A Heavy Gas Oil product, which is sent to Qatar Gas 3/4.
- The other Heavy Gas Oil product, which is sent to LR1 rundown system.
Due to condensate has become progressively lighter resulting in higher naphtha production at U12 and LR1 Unit 12 is already operating at 110% of its capacity. It is necessary to improve LR2 production in to 110% (160600 BPSD) of its current U12 operating capacity (146000 BPSD) with minimum or no hardware modifications.
This case will consider the operating capacity as 110% (160600 BPSD). The Amine Generation Unit (U18) will also be checked for adequacy for 110% of LR2 capacity through techno-economic evaluation.
HAZID STUDY
The HAZID research was created expressly to reflect the significance of HSE concerns on the fundamental choices made at the beginning of any development project (such as design concept and location). HAZID is the first chance to bring together experienced line and HSE experts to quickly address the problems relating to a new venture, development, or modification project.
The HAZID objective includes the following:
- The objective is to identify and describe health, safety, and environmental hazards and risks as soon as possible during the initiation of a project or undertaking.
- A gathering of a proficient and diverse group of individuals utilizing a systematic brainstorming approach, founded on a comprehensive list of plausible health, safety, and environmental concerns, to evaluate the relevance of potential dangers.
- Conduct a qualitative assessment of risks in order to rank the hazards.
- The process of identifying and describing potential problems is conducted expeditiously, with the sole purpose of recognizing issues rather than attempting to resolve them.
The HAZID is a structured approach to determine the potential impacts of the following;
- The surroundings on the facilities.
- The facilities on their surroundings.
- The facilities on the health
- Project Implementation Issues
HAZID review is to identify potentially dangerous and undesirable events, which might affect a facility (equipment, operators, and production). The review allows proper identification of HSE hazards at the beginning of a project and provides a detailed list of project hazards and recommended controls to manage those hazards to an acceptable level of risk.
The review also describes the causes and consequences of these hazard scenarios and provides recommendations that propose:
- Mitigation measures that will eliminate the risk of occurrence of these events or limit their consequences
- Investigations and studies to quantify the risks and possible consequences
The ultimate goal of the HAZID review is to identify potential hazards and manage the risk of those hazards to an acceptable level of risk.
The HAZID technique is designed to identify and mitigate risks associated with design decisions made in the early stages of the project. By identifying these risks early in the design phase, the cost and schedule impact associated with the implement risk reduction measures is minimized. The HAZID process involves the collaboration of seasoned line and HSE personnel to examine the concerns associated with a novel undertaking or alteration initiative.
The HAZID was conducted according to the guidelines for HAZID to identify potential hazards through the application of guidewords so that impacts within the following categories could be assessed:
- External and Environmental Hazards
- Facility Hazards
- Health Hazards
- Project Implementation Issues
The HAZID technique includes the following:
- The objective is to identify and describe health, safety, and environmental hazards and risks as early as possible in the development or implementation of a project
- A group of experts from various disciplines convened to conduct a systematic brainstorming session utilizing a predetermined checklist of potential health, safety, and environmental concerns in order to evaluate the relevance of potential risks
- Conduct a qualitative assessment of risks in order to rank the hazards
The HAZID analysis was executed in accordance with a predetermined set of procedures:
- The process design team provided an overview of the design intent process operations and operating conditions of the facility
- Appropriate section/area of the plant was selected
- Design intent of the area and process conditions were defined
- First/Next Hazard Category was selected
- First/Next guide word was applied, which when combined with Hazard category will give the hazard scenario
- All the potential causes of the hazard were determined (by brainstorming)
- Credibility of each cause was agreed
- The consequence of each cause was assessed; the protection and prevention provided against the causes and its consequences were assessed
- Using a risk ranking matrix, each Hazard is then given a risk ranking for each of the four groups (People, Environment, Asset, & Reputation)
- Additional recommendations were provided based on the requirement
- The team then calculated residual risk for each of the four groups (People, Environment. Asset & Reputation)
- The next guideword was applied (relevant to the selected Hazard Category)
- The next Hazard Category was applied until they have all been considered
- The next area of the plant/project was considered until the whole study area has been Examined
The HAZID study team documented the information pertaining to credible deviations in the HAZID worksheet.
- Hazard Category: The type of hazard under consideration (E.g. Loss of Containment, Ergonomics, Worker Safety, etc.)
- Hazard / Aspect: A source of potential harm or damage, or a situation with potential for harm or damage.
- Hazard / Aspect Description: The written description of the event that results in the Hazard identified.
- Consequences / Impact: A description of the worst credible hazard, or series of hazards, or operability problems that would or could result from the Cause, if subsequent events were to proceed without consideration of safeguards, which may exist. Potential ramifications may extend beyond the specific Node that is being examined. If so, these were documented accordingly.
- Current Controls: Existing or proposed (for new projects) measures that detect or warn of a Deviation or Consequence, prevent a Cause, stop the progression of the Consequence or mitigate the effects of a Consequence.
- Risk: The product of the Likelihood & Consequence of the Hazard Scenario identified.
- Additional Controls required/Recommendations: Recommendations include design, operating, or maintenance changes that reduce or eliminate Deviations, Causes and/or Consequences.
During the HAZID workshop, Health, Safety, Environmental, Reputation hazards were ranked as per the Risk Assessment Matrix (RAM). This qualitative risk ranking assesses the likelihood and consequence of the hazards to derive the significance of the hazard. The initial risk ranking was assigned on the assumption that no control/mitigation measures are in place.
The HAZID Study’s action items, also known as recommendations, are documented in the HAZID Report and subsequently monitored until resolution. The primary aim of the HAZID session was to identify potential hazards, operability concerns, or integrity issues, without the intention of resolving any existing problems.
Therefore, the recommendations generated have been worded in a general manner using words like ‘Consider’, ‘Ensure’ and ‘Other action verbs’; It is imperative to acknowledge that the reactions to the HAZID recommendations must furnish an unambiguous record of the audit trail, encompassing the justifications for executing or abstaining from any measures.
“…Ensure…” In documents like P&ID, Operating, Control & Shutdown Philosophy, and Cause and Effects, etc., which might not have been available at the time of the HAZID, ensuring is typically used as a reminder to include a certain point. In cases where the issuance of the document precedes the closeout of the Hazard Identification (HAZID) process, it is imperative that the response includes a detailed notation of the specific actions that have been taken.
In the event that the issuance of the document is deferred until after the close-out of the Hazard Identification (HAZID) process, it is imperative that the response clearly outlines the method by which the point will be conveyed for subsequent implementation.
“…Review…” The process of identifying and describing potential problems is conducted expeditiously, with the sole purpose of highlighting the issues rather than attempting to resolve them. The response must include a rationale for the action—including doing none at all—as well as an explanation of the choices thought through and conclusions drawn.
“…Other action verbs…” Recommendations starting with other action verbs are mandatory actions that shall be implemented by party responsible for closing out each recommendation.
