Sampling separation module for subsea or surface application

摘要

The disclosure describes a system to segregate, enrich and capture oil, water and gas samples from a multiphase flow. The system can be used in a subsea location, on the surface or in any other condition where it is connected to a flow of different phases of gas and/or liquid. The samples obtained are representative in composition of the phases flowing at well head conditions in terms of both pressure and temperature. Additionally, a relatively small volume of each phase is used in obtaining the samples. The system connects and disconnects to ports installed at the sampling location nearby the wellhead or the production line. The sampling flow is controlled by means of a pump. The collected samples are separated in mono (or nearly mono)—phase samples (oil, water and gas) and stored in individual bottles.

主权项

1. A system for separating fluid from a multiphase fluid including gas, oil, and water, the system comprising:
a separation chamber; an inlet port operatively connected to the separation chamber at an inlet location for flowing multiphase fluid into the separation chamber; a first outlet port operatively connected to the separation chamber at an upper outlet location, the upper outlet location being above the inlet location during operation; a first sensor configured and operatively connected to make first measurements of phase content of fluid adjacent the first outlet port; a second outlet port operatively connected to the separation chamber at a lower outlet location, the lower outlet location being below the inlet location during operation; a second sensor configured and operatively connected to make second measurements indicative of phase content of fluid adjacent the second outlet port; and a pumping system to flow fluid into and out of the separation chamber, the pumping system including a piston and a cylinder, when the pumping system is in use, the cylinder is oriented about an axis tilted from a horizontal plane to enable a degree of pre-separation of the multiphase fluid to occur within the cylinder.