System and method for monitoring water accumulation in a pipe annulus

Monitoring water flooding in a pipe annulus

A system, and corresponding method, of monitoring water being accumulated in an annulus 704 of a flexible pipe comprises a pressure measurement system 808 connected to the pipe annulus for measuring pressure of gas inside the annulus, a vent gas valve 810 for controlling a flow of vent gas, a flow measurement system 806 for measuring the flow of vent gas when the vent gas valve is opened, and processing means for collecting pressure and flow measurement data from the pressure measurement and flow measurement systems to determine the volume of gas in the annulus and for determining the amount of water accumulated in the annulus based on the determined volume of gas in the annulus.

System and method for detecting corrosion in flexible pipes

Structural load monitoring using collars and connecting elements with strain sensors

Subsea fluid sampling apparatus

Subsea apparatus 10 for sampling and analysing fluid from a well comprises at least one housing locatable in close proximity to a subsea well or wellhead and at least one fluid analysing device 26 being in the housing. The fluid analysing device is in communication with a fluid sample obtained from the subsea well, and the fluid analysing data can be communicated. The apparatus may include a software model for predicting the production conditions of the well and attachment means 16 for a detachable subsea vehicle such as a remotely operated vehicle (ROV) or an autonomous underwater vehicle (AUV). The invention relates further to a method of analysing fluid from a subsea well. Also disclosed is a subsea apparatus for sampling fluid from a well in which the fluid sample is transportable to the surface for analysis.

In-line composition and volumetric analysis of vent gases and flooding of the annular space of flexible pipe

A method and system for monitoring a flexible pipe, including an inline sensor system coupled to the annulus of the flexible pipe to detect corrosion of the flexible pipe. Also disclosed are method and system for monitoring an amount of water being accumulated in an annulus of a flexible pipe, including locating a pressure measurement system proximate to the annulus for measuring pressure of gas inside the annulus; controlling a flow of vent gas with a vent gas valve; positioning a flow measurement system upstream or downstream of the vent gas valve for measuring the flow of the vent gas when the vent gas valve is opened; and collecting with a microprocessor pressure and flow measurement data from the pressure and the flow measurement systems for determining the amount of water accumulated in the annulus based on the collected pressure and flow measurement data.

Subsea fluid sampling and analysis