Abstract: There is provided a wellhead assembly that includes a production well, a first valve, process equipment, a transport pipe for transporting fluid away from the wellhead assembly, and piping fluidly connecting the production well to the first valve, process equipment, and the transport pipe. The first valve is located between the production well and the process equipment, and there is a fall in the piping between the first valve and the transport pipe such that when the first valve is closed liquid will drain from the first valve into the transport pipe under the action of gravity. There is also provided a method of draining the wellhead assembly, an arrangement for depressurising the wellhead assembly using a service line and a method of depressurising the wellhead assembly.

Abstract: An unmanned offshore wellhead platform 10 for use in the oil and gas industry, the platform comprising: riser hang-off equipment 13 for connection to at least one riser for flow of hydrocarbon fluids from at least one well; and process equipment 14 for processing the hydrocarbon fluids to produce processed or part processed hydrocarbon fluids for storage and/or transport to another installation, wherein all of the process equipment 14 is on a single process deck 12 of the platform 10.

Abstract: A method for handling of hydrocarbons on an offshore platform includes the absence of emergency depressurisation for a fire. The method includes arranging the platform such that there is no mechanism for emergency depressurisation of a hydrocarbon inventory of the platform in the event of a fire, restricting the size of the platform such that evacuation of personnel can be achieved prior to escalation of a fire due to the lack of emergency depressurization, and permitting a fire to escalate by combustion of the hydrocarbon inventory after evacuation of the personnel.

Abstract: There is provided a wellhead assembly that includes a production well, a first valve, process equipment, a transport pipe for transporting fluid away from the wellhead assembly, and piping fluidly connecting the production well to the first valve, the process equipment, and the transport pipe. The first valve is located between the production well and the process equipment, and there is a fall in the piping between the first valve and the transport pipe such that when the first valve is closed liquid will drain from the first valve into the transport pipe under the action of gravity. There is also provided a method of draining the wellhead assembly, an arrangement for depressurising the wellhead assembly using a service line and a method of depressurising the wellhead assembly.

Abstract: There is provided a wellhead assembly that includes a production well, a first valve, process equipment, a transport pipe for transporting fluid away from the wellhead assembly, and piping fluidly connecting the production well to the first valve, process equipment, and the transport pipe. The first valve is located between the production well and the process equipment, and there is a fall in the piping between the first valve and the transport pipe such that when the first valve is closed liquid will drain from the first valve into the transport pipe under the action of gravity. There is also provided a method of draining the wellhead assembly, an arrangement for depressurising the wellhead assembly using a service line and a method of depressurising the wellhead assembly.

Abstract: A method for handling of hydrocarbons on an offshore platform 14, 16 includes the absence of emergency depressurisation for a fire. The method comprises: arranging the platform 14, 16 such that there is no mechanism for emergency depressurisation of a hydrocarbon inventory of the platform 14, 16 in the event of a fire; restricting the size of the platform 14, 16 such that evacuation of personnel can be achieved prior to escalation of a fire due to the lack of emergency depressurisation; and permitting a fire to escalate by combustion of the hydrocarbon inventory after evacuation of the personnel.

Abstract: There is provided a wellhead assembly that includes a production well, a first valve, process equipment, a transport pipe for transporting fluid away from the wellhead assembly, and piping fluidly connecting the production well to the first valve, the process equipment, and the transport pipe. The first valve is located between the production well and the process equipment, and there is a fall in the piping between the first valve and the transport pipe such that when the first valve is closed liquid will drain from the first valve into the transport pipe under the action of gravity. There is also provided a method of draining the wellhead assembly, an arrangement for depressurising the wellhead assembly using a service line and a method of depressurising the wellhead assembly.

Abstract: The invention relates to the recovery of excess gas which is formed in an oil/gas treatment plant, more specifically in a production plant where gas-containing oil in a separation plant is separated into a gas fraction and an oil fraction which are individually advanced for respective applications. The excess gas is advanced for recovery through a special collection conduit (40) on which there is coupled a branch conduit (72) which leads to a torch (74), and which comprises valves (76, 78) which are primarily closed, but which secondarily are adapted to open for the flow of gas to a torch (74) when the pressure of the excess gas exceeds a given value and/or when an irregular emergency situation occurs in the plant. There is also mentioned a concrete solution for joining of the excess gas with the extracted process gas.