Method for identifying rebalancing fluid enclosure in reservoir of sedimentary basin

A fluid inclusion and rebalancing technology, applied in geophysical measurement, instruments, etc., to avoid misunderstanding, ensure accuracy, and improve test efficiency

Inactive Publication Date: 2016-02-10
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is currently no set of methods specifically addressing how to identify rebalanced fluid inclusions in sedimentary basin reservoirs

Method used

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  • Method for identifying rebalancing fluid enclosure in reservoir of sedimentary basin
  • Method for identifying rebalancing fluid enclosure in reservoir of sedimentary basin
  • Method for identifying rebalancing fluid enclosure in reservoir of sedimentary basin

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Embodiment Construction

[0019] A method for identifying rebalanced fluid inclusions in sedimentary basin reservoirs, including the following steps in sequence: making fluid inclusion thin slices; fluid inclusion petrographic feature identification; fluid inclusion temperature measurement; fluid inclusion petrography and homogeneity Comprehensive temperature recognition.

[0020] The first step is to make fluid inclusion thin slices, which can be made with reference to the rock sheeting method (Petroleum Industry Standard: SY / T5913-2004).

[0021] The specific process of identifying the petrographic features of fluid inclusions is to use the fluid inclusion assembly (FIA) as the research object under the transmission light microscope and the fluorescence microscope to observe the type of fluid inclusions and the interpenetrating and cutting relationship, and to distinguish between brine inclusions and Hydrocarbon inclusions, and observe and record the morphology, structure, gas-liquid ratio and structural ...

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Abstract

The invention belongs to the field of geochemistry, and particularly relates to a method for identifying a rebalancing fluid enclosure in a reservoir of a sedimentary basin. The method is simple and clear, and can identify the rebalancing fluid enclosure by only adopting the microphysiography and the homogenization temperature of the fluid enclosure. The rebalancing fluid enclosure can be effectively identified in the sedimentary basin subjected to polyphase geological events, so that mis-explanations that the paleogeotemperature is recovered by adopting data of the rebalancing fluid enclosure and the like are avoided; furthermore, diagenesis and reservoir forming periods can be judged, and the activity intensity of a geological event can be effectively instructed.

Description

Technical field [0001] The invention belongs to the field of geochemistry, and particularly relates to a method for identifying rebalanced fluid inclusions in a sedimentary basin reservoir. The invention is simple and clear, and the rebalanced fluid inclusions can be identified only by applying the petrography and the uniform temperature of the fluid inclusions. In sedimentary basins that have experienced multiple stages of geological events, the effective identification of rebalanced fluid inclusions not only avoids the use of rebalanced fluid inclusion data to restore ancient geotemperature and other misinterpretations, but also helps to identify the period of diagenesis and accumulation, effectively indicating geological events The intensity of activity. Background technique [0002] Fluid inclusions directly record the properties of paleo-fluids and paleo-temperature and pressure in the geological process. Fluid inclusions are an important method for analyzing fluid environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V9/00
Inventor 陈勇曹梦春王鑫涛刘闯王淼刘唯一
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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