US 2026/0152693 A1 · PYROLYSIS APPARATUS, METHOD, AND SYSTEM FOR LOSS RECOVERY AND CORRECTION OF LIGHT HYDROCARBONS IN MUD SHALE

Abstract

A pyrolysis apparatus, method, and system for loss recovery and correction of light hydrocarbons in mud shale are provided. The pyrolysis apparatus has a pyrolysis tank for accommodating and heating a full-diameter core sample, an input pipeline and an output pipeline being respectively arranged at two opposite ends of the pyrolysis tank, and a flow divider assembly being arranged on the output pipeline, forming a first branch pipeline and a second branch pipeline; a carrier gas assembly in communication with the input pipeline; and a detection assembly, comprising a first detection unit for quantitative detection and a second detection unit for qualitative detection, which are connected to the first branch pipeline and the second branch pipeline, respectively. The pyrolysis apparatus, method, and system for loss recovery and correction of light hydrocarbons in mud shale carry out on-site pyrolysis of full-diameter core.

Claims15

Dependent claims

A pyrolysis apparatus for loss recovery and correction of light hydrocarbons in mud shale, comprising:

a pyrolysis tank, for accommodating and heating a full-diameter core sample, an input pipeline and an output pipeline being respectively arranged at two opposite ends of the pyrolysis tank, and a flow divider assembly being arranged on the output pipeline, forming a first branch pipeline and a second branch pipeline;
a carrier gas assembly in communication with the input pipeline;
and
a detection assembly, comprising a first detection unit for quantitative detection and a second detection unit for qualitative detection, which are connected to the first branch pipeline and the second branch pipeline, respectively,
wherein the pyrolysis tank comprises an oval columnar tank body, a heating mechanism is arranged on a side wall of the tank body, and a vertical air grille structure is arranged on each of front and rear sides of the tank body, the vertical air grille structure including several gas holes vertically arranged in a row.

2 more elements

A loss recovery and correction method for light hydrocarbons in mud shale, comprising:

determining, based on hydrocarbon signal in response to hydrocarbons in a pyrolysis product of a core sample, a relationship between an accumulated amount of pyrolyzed light hydrocarbons of the core sample and a pyrolysis time;
determining, according to said relationship, an accumulated amount of light hydrocarbon loss of the core sample during a time period after extraction from target formation and prior to pyrolysis;
and
determining, according to the accumulated amount of light hydrocarbon loss, a light hydrocarbon correction coefficient.

1 more element

Dependencies are inferred from the claim text.

Pyrolysis apparatus, method, and system for loss recovery and correction of light hydrocarbons in mud shale

Life of this patent

Pyrolysis apparatus, method, and system for loss recovery and correction of light hydrocarbons in mud shale

Life of this patent

Abstract

Claims15