US 2024/0192190 A1 · DETERMINING RESERVOIR FLUID COMPOSITION TO PENTATETRACONTANES PLUS

Abstract

Methods and a system for determining a composition of a fluid from a reservoir are provided. An exemplary method includes depressurizing a single-phase fluid to atmospheric pressure to separate a gas phase from a liquid phase, recording the volume of the gas phase, determining the weight of the liquid phase, and determining an atmospheric gas-oil ratio (GOR) from the volume of the gas phase and the weight of the liquid phase. The method also includes determining the composition of the gas phase to C9+, measuring the density of the liquid phase, determining the molecular weight of the liquid phase, and determining the composition of the liquid phase to C45+. The total hydrocarbon composition of the fluid is calculated from the amount of the gas phase, the amount of the liquid phase, the composition of gas phase, the composition liquid phase, and the atmospheric GOR.

Claims12

Dependent claims

A method for measuring a composition of a reservoir fluid, comprising:

pressurizing a sample container holding the reservoir fluid to form a single-phase fluid;
pumping the single-phase fluid from the sample container into a separation oven;
releasing pressure on the single-phase fluid in a flashing container to form a liquid phase and a gas phase;
capturing the liquid phase in the flashing container;
flowing the gas phase through a gas collection cylinder into tubing in a gas accumulator oven;
recirculating a portion of the gas phase through the liquid phase at atmospheric pressure to equilibrate components in the gas phase and components in the liquid phase;
and
capturing a sample of the gas phase in the gas collection cylinder.

5 more elements

Dependencies are inferred from the claim text.

Determining reservoir fluid composition to pentatetracontanes plus

Life of this patent

Determining reservoir fluid composition to pentatetracontanes plus

Life of this patent

Abstract

Claims12