Quantitative evaluation method of cracking of disperse liquid hydrocarbon into gas

A quantitative evaluation and liquid hydrocarbon technology, applied in measuring devices, analytical materials, instruments, etc., can solve problems such as unfavorable exploration prospects and limited gas generation potential
CN104950080AActive Publication Date: 2015-09-30PETROCHINA CO LTD
2 Cites 13 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Publication Date
2015-09-30

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a quantitative evaluation method of cracking of disperse liquid hydrocarbon into gas. The evaluation method comprises the steps of selecting various hydrocarbon source rock of a major end member, determining a distribution ratio and basic amount of in-source disperse liquid hydrocarbon and out-source disperse liquid hydrocarbon in the various hydrocarbon source rock based on an oil drainage rate study, determining a major enrichment distribution area of out-source disperse liquid hydrocarbon via statistics of thermogenic pitch and fluorescence samples, analyzing a thermodynamic condition and a conversion rate of cracking of disperse liquid hydrocarbon into the gas, determining an effect of temperature, pressure and an inorganic mineral medium of the cracked gas on a conversion effect and an opportunity, carrying out oil gas system analysis on a particular study area, determining a basic petroleum geology condition and a main gas generation period of the cracking of liquid hydrocarbon into the gas, dividing disperse liquid hydrocarbon into in-source disperse liquid hydrocarbon and out-source disperse liquid hydrocarbon, and quantitatively calculating gas amount cracked by disperse liquid hydrocarbon. The method can quantity the gas cracked by disperse liquid hydrocarbon in the ancient hydrocarbon source rock in a marine superimposed basin.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a quantitative evaluation method for gas cracking of dispersed liquid hydrocarbons, which belongs to the field of oil and gas exploitation. Background technique

[0002] There are many sets of high-quality source rocks developed in my country's marine superimposed basins, but the marine basins have experienced the superposition process from the Paleozoic marine sediments to the Mesozoic and Cenozoic continental sediments, and the evolution degree is mostly in the high-to-mature stage. According to the cheese According to the theory of oil and gas generation through thermal degradation, the gas generation potential of these formations is limited, and the prospect of exploration is not optimistic.

[0003] Previous studies have shown that over-mature kerogens have limited gas generation potential, but dispersed liquid hydrocarbons inside and outside the source and cracked gas from paleo-reservoirs are important sources of deep nat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More