![]() (6) Briefing areas where personnel will assemble during an H 2S alert. (5) Actions that you will take when the concentration of H 2S in the atmosphere reaches 20 ppm, who will be responsible for those actions, and a description of the audible and visual alarms to be activated (4) Other key positions, how these positions fit into your organization, and what the functions, duties, and responsibilities of those job positions are (3) Job position and title of the person responsible for the overall safety of personnel (2) Training you provide for employees, contractors, and visitors (1) Safety procedures and rules that you will follow concerning equipment, drills, and smoking You must keep a copy of the approved plan in the field, and you must follow the plan at all times. Do not begin operations before the District Manager approves your plan. Before you begin operations, you must submit an H 2S Contingency Plan to the District Manager for approval. (f) Requirements for submitting an H 2 S Contingency Plan. (e) What are the requirements for conducting simultaneous operations? When conducting any combination of drilling, well-completion, well-workover, and production operations simultaneously, you must follow the requirements in the section applicable to each individual operation. (d) What do I do if conditions change? If you encounter H 2S that could potentially result in atmospheric concentrations of 20 ppm or more in areas not previously classified as having H 2S present, you must immediately notify BSEE and begin to follow requirements for areas with H 2S present. (4) Submit a request for reclassification of a zone when additional data indicate a different classification is needed. (3) Support your request with available information such as geologic and geophysical data and correlations, well logs, formation tests, cores and analysis of formation fluids and (2) Submit your request with your application for permit to drill Classifications are “H 2S absent,” H 2S present,” or “H 2S unknown” (1) Request and obtain an approved classification for the area from the Regional Supervisor before you begin operations. (c) Classifying an area for the presence of H 2 S. Well-control fluid means drilling mud and completion or workover fluid as appropriate to the particular operation being conducted. H 2 S unknown means the designation of a zone or geologic formation where neither the presence nor absence of H 2S has been confirmed. ![]() H 2 S present means that drilling, logging, coring, testing, or producing operations have confirmed the presence of H 2S in concentrations and volumes that could potentially result in atmospheric concentrations of 20 ppm or more of H 2S. (2) Drilling in the surrounding areas and correlation of geological and seismic data with equivalent stratigraphic units have confirmed an absence of H 2S throughout the area to be drilled. (1) Drilling, logging, coring, testing, or producing operations have confirmed the absence of H 2S in concentrations that could potentially result in atmospheric concentrations of 20 ppm or more of H 2S or ![]() Terms used in this section have the following meanings:įacility means a vessel, a structure, or an artificial island used for drilling, well-completion, well-workover, and/or production operations. (2) Follow your approved contingency plan. You do not need to follow these requirements when operating in zones where the absence of H 2S has been confirmed and You must follow the requirements of this section when conducting drilling, well-completion/well-workover, and production operations in zones with H 2S present and when conducting operations in zones where the presence of H 2S is unknown. (1) Take all necessary and feasible precautions and measures to protect personnel from the toxic effects of H 2S and to mitigate damage to property and the environment caused by H 2S. (a) What precautions must I take when operating in an H 2 S area? You must:
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