California Code of Regulations › Title 14 - Natural Resources › Division 2 - Department of Conservation › Chapter 4 - Development, Regulation, and Conservation of Oil and Gas Resources › Subchapter 1.1 - Offshore Well Regulations › Article 3 - Regulations › Section 1747.1 - Safety and Pollution Control Equipment Requirements

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The following requirements shall apply to all offshore
						production facilities. Sections
						1747.3,
						1747.4, and
						1747.9 shall also apply to mobile
						drilling structures. Sections
						1747.2 and
						1747.10 shall also apply to ocean
						floor completions or wells with submerged wellheads.
(a) The following devices shall be installed
					 and maintained in an operating condition on all pressurized vessels and water
					 separation facilities when such vessels and separation facilities are in
					 service. The operator shall maintain records on the structure or facility
					 showing the present status and history of each such device including dates and
					 details of inspection, testing, repairing, adjustment, and reinstallation or
					 replacement.
(1) All separators shall be
					 equipped with high-low pressure shut-in sensors, low level shut-in controls,
					 and a relief valve. High liquid level control devices shall be installed when
					 the vessel can discharge to a gas vent line.
(2) All pressure surge tanks shall be
					 equipped with a high and low pressure shut-in sensor, a high level shut-in
					 control, gas vent line, and relief valve.
(3) Atmospheric surge tanks shall be equipped
					 with a high level shut-in sensor.
(4) All other hydrocarbon handling pressure
					 vessels shall be equipped with high-low pressure shut-in sensors, high-low
					 level shut-in controls, and relief valves, unless they are determined by the
					 Supervisor to be otherwise protected. All low pressure systems connected to
					 high pressure systems shall be equipped with relief valves.
(5) Pilot-operated pressure relief valves
					 shall be equipped to permit testing with an external pressure source.
					 Spring-loaded pressure relief valves shall either be bench-tested or equipped
					 to permit testing with an external pressure source. A relief valve shall be set
					 no higher than the designed working pressure of the vessel. On all vessels with
					 a rated or designed working pressure of more than 400 psi, the high pressure
					 shut-in sensor shall be set no higher than 5 percent below the rated or
					 designed working pressure and the low pressure shut-in sensor shall be set no
					 lower than 10 percent below the lowest pressure in the operating pressure
					 range. On lower pressure vessels the above percentages shall be used as
					 guidelines for sensor settings considering pressure and operating conditions
					 involved, except that sensor setting shall not be within 5 psi of the rated or
					 designed working pressure or the lowest pressure in the operating pressure
					 range.
(6) All pressure-operated
					 sensors shall be equipped to permit testing with an external pressure
					 source.
(7) All gas vent lines
					 shall be equipped with a scrubber or similar separation
					 equipment.