Apparatus and method for performing process hazard analysis

• US 7,716,239 B2
• Filed: 07/20/2004
• Issued: 05/11/2010
• Est. Priority Date: 07/20/2004
• Status: Active Grant

• Current Assignee: Siemens Energy Incorporated (Siemens AG)
• Original Assignee: Siemens Energy Incorporated (Siemens AG)
• Inventors: Murez, Justin, Berwanger, Patrick C.
• Primary Examiner(s): Le; Miranda
• Application Number:
  US10/895,169
• Publication Number:
  US 20060020604A1
• Time in Patent Office: 2,121 Days
• Field of Search: 707 1- 10, 707100-1041, 707200-201, 707/736, 707/770, 707/779, 705/1, 705/8, 705/9, 702/179, 700/19, 700/21, 700/83, 700203-204, 700/206, 700/301
• US Class Current: 707/779
• CPC Class Codes: G05B 23/0264 Control of logging system, e.g. decision on which data to store; time-stamping measurements

Abstract

A software application implementable on a computer system for performing process hazard analysis. The process has a plurality of nodes with equipment, and process data created by external applications is stored in a plurality of external databases on the computer system. A plurality of internal master lists are created for the software application by importing the process data from the external databases into the software application. A node record for each node of the process is compiled by inputting information on the node. The node records for each node are organized according to one of a plurality of guidewords. The node records of the process are reviewable by filtering the node records according to a selected guideword, nodes, equipment, or other process data.

Claims

1. A computer-implemented method for performing process hazard analysis to identify and report on potential hazards of a process having a plurality of interconnected nodes, wherein the nodes comprise one or more pieces of equipment with the potential of having one or more types of hazards, the method comprising:

providing a plurality of master lists for performing process hazard analysis created by importing information from a plurality of sources and storing the information within the plurality of master lists in a data file of a computer, wherein said plurality of master lists comprise an equipment list comprising imported equipment information for a process, a safeguard list comprising imported safeguard information about mitigating process hazards, and an analysis criteria list comprising a plurality of imported guidewords from a particular predefined analysis methodology for classifying a plurality of types of hazards for the process;

transforming the information from the plurality of sources into analysis records for performing process hazard analysis, comprising;

assembling a node template for each individual node of the process by retrieving data from the plurality of master lists for the individual node and populating the node template with the data, wherein the data in the node template comprises equipment information for each piece of equipment at the node;

for each of the plurality of guidewords classifying the plurality of possible types of hazards of the process creating analysis records by;

(i) selecting a current guideword from the plurality of guidewords, wherein the plurality of guidewords comprising the plurality of hazard operability (HAZOP) criterion for processes related to flow comprise no flow, reverse flow, more flow, less flow;

(ii) creating the analysis record by copying the node template into the analysis record for each piece of equipment at the node,

(iii) supplementing each analysis record with further data from the safeguard list comprising causes and consequences, and

(iv) associating each created analysis record with the selected current guideword, so that one or more analysis records are created for the node and associated with the guideword;

generating an interactive node form for performing and reporting process hazard analysis, the node form comprising user-selectable analysis criterion by guideword for organizing and displaying analysis records for each node of the process by guideword; and

displaying the analysis records for each node of the process by guideword in response to a user-selection, thereby allowing the process hazard analysis to be consistent with the particular predefined analysis methodology.

2. The computer-implemented method of claim 1 wherein the user-selectable analysis criterion of the node form provides for selection by a particular guideword resulting in the display of only the analysis records associated with that guideword.

3. The computer-implemented method of claim 1 wherein the user-selectable analysis criterion of the node form provides for selection by all guidewords resulting in the display of all analysis records associated with all guidewords.

4. The computer-implemented method of claim 1 wherein said plurality of master lists further comprise a risk ranking list comprising imported risk rankings.

5. The computer-implemented method of claim 4 further comprising supplementing each analysis record with further data from the risk ranking list comprising risk rankings.

6. The computer-implemented method of claim 1 wherein the plurality of guidewords comprise a plurality of hazard operability (HAZOP) criterion for the process in accordance with a HAZOP analysis methodology.

7. The computer-implemented method of claim 1 wherein the plurality of guidewords are based on analysis methodologies selected from one of Layers of Protection Analysis, Safety Review, Checklist Analysis, Relative Ranking, Preliminary Hazard Analysis, What-If Analysis, What-If Checklist Analysis, Failure Modes and Affects Analysis, Fault Tree Analysis, and Event Tree Analysis.

8. A system for performing process hazard analysis to identify and report on potential hazards of a process having a plurality of interconnected nodes, wherein the nodes comprise one or more pieces of equipment with the potential of having one or more types of hazards, the system comprising:

a process hazard analysis (PHA) application in a computer having a processor and associated with a data file database for a particular process hazard analysis, said PHA application providing a plurality of master lists for performing process hazard analysis created by importing information from a plurality of external databases having information about a process and storing the information within the plurality of master lists in the data file database, wherein said plurality of master lists comprise an equipment list comprising imported equipment information for a process, a safeguard list comprising imported safeguard information about mitigating process hazards, and an analysis criteria list from a particular predefined analysis methodology comprising a plurality of imported guidewords for classifying a plurality of types of hazards for the process;

said PHA application transforming via the processor the information from the plurality of databases into analysis records for performing process hazard analysis, comprising;

automatically assembling a node template for each individual node of the process by retrieving data from the plurality of master lists in the data file for the individual node and populating the node template with the data, wherein the data in the node template comprises equipment information for each piece of equipment at the node;

for each of the plurality of guidewords classifying the plurality of possible types of hazards of the process creating analysis records by

(i) selecting a current guideword from the plurality of guidewords, wherein the plurality of guidewords comprising the plurality of hazard operability (HAZOP) criterion for processes related to flow comprise no flow, reverse flow, more flow, less flow;

(ii) creating the analysis record by copying the node template into the analysis record for each piece of equipment at the node,

(iii) supplementing each analysis record with further data from the safeguard list comprising causes and consequences, and

(iv) associating each created analysis record with the guideword, so that one or more analysis records are created for the node and associated with the guideword; and

generating an interactive node form displayed on a screen for performing and reporting process hazard analysis, the node form comprising user-selectable analysis criterion by guideword for organizing and displaying analysis records for each node of the process by guideword; and

displaying on the screen analysis records for each node of the process by guideword in response to a user-selection, thereby allowing the process hazard analysis to be consistent with the particular predefined analysis methodology.

9. The system of claim 8 wherein the user-selectable analysis criterion of the node form provides for selection by a particular guideword resulting in the display of only the analysis records associated with that guideword.

10. The system of claim 8 wherein the user-selectable analysis criterion of the node form provides for selection by all guidewords resulting in the display of all analysis records associated with all guidewords.

11. The system of claim 8 wherein said plurality of master lists further comprise a risk ranking list comprising imported risk rankings.

12. The system of claim 11 further comprising supplementing each analysis record with further data from the risk ranking list comprising risk rankings.

13. The system of claim 8 wherein the plurality of guidewords comprise a plurality of hazard operability (HAZOP) criterion for the process in accordance with a HAZOP analysis methodology.

14. The system of claim 8 wherein the plurality of guidewords are based on analysis methodologies selected from one of Layers of Protection Analysis, Safety Review, Checklist Analysis, Relative Ranking, Preliminary Hazard Analysis, What-If Analysis, What-If Checklist Analysis, Failure Modes and Affects Analysis, Fault Tree Analysis, and Event Tree Analysis.