Manufacturing method of oriented fluid inclusion thin sheet of wild outcrop sand rock sample

A fluid inclusion and field outcrop technology, which is applied in the field of making directional fluid inclusion thin slices of field outcrop sandstone samples, can solve the problem that the interaction between tectonic fractures and crustal fluid cannot be well interpreted, the structural properties of fluid inclusion surfaces are ignored, and the wrong research conclusions, etc.

Active Publication Date: 2018-05-18
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

This lack of directionality in the study of fluid inclusion surfaces only focuses on the study of crustal fluids related to fractures, while ignoring the unique structural...

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  • Manufacturing method of oriented fluid inclusion thin sheet of wild outcrop sand rock sample
  • Manufacturing method of oriented fluid inclusion thin sheet of wild outcrop sand rock sample
  • Manufacturing method of oriented fluid inclusion thin sheet of wild outcrop sand rock sample

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Embodiment Construction

[0042] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0043] A method for making oriented fluid inclusion thin slices of outcrop sandstone samples, such as figure 1 shown, including the following steps:

[0044] Step 1: Directional collection of outcrop sandstone samples: eg figure 2 As shown, collect sandstone samples, record the occurrence information of the sandstone strata where the sandstone samples are located and the fractures developed around them, and mark the orientation information on the sandstone samples. The orientation information includes horizontal azimuth line 1, geographic North Pole direction line 2, first top surface 3 and first bottom surface 4;

[0045] Step 2: restore the original occurrence of the sandstone sample a...

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Abstract

The invention relates to a manufacturing method of an oriented fluid inclusion thin sheet of a wild outcrop sand rock sample. The manufacturing method comprises the following steps: collecting an outcrop sand rock sample in an oriented manner and carrying out original occurrence recovery; calibrating a cutting direction; carrying out first-time cutting according to the calibrated cutting directionto obtain a sheet production sample block; carrying out coarse grinding, fine grinding, refined grinding and polishing on a horizontal plane of the sheet production sample block; sticking a glass slide; calibrating a number and a direction of the sheet production sample block on the stuck glass slide; carrying out second-time sample cutting on the sheet production sample block; carrying out coarse grinding, fine grinding, refined grinding and polishing on a cutting surface of a thin sheet obtained by the second-time sample cutting; carrying out quality inspection on the oriented fluid inclusion thin sheet. According to the manufacturing method provided by the invention, the original direction property of the outcrop sand rock sample can be effectively kept and direction information of thesand rock sample is accurately represented in the manufactured fluid inclusion thin sheet; premised guarantees are provided for carrying out accurate analysis on the aspects including petrographicalcharacteristics, distribution directions, development periods and the like of a fluid inclusion surface.

Description

technical field [0001] The invention belongs to the technical field of geological exploration, and in particular relates to a method for making oriented fluid inclusion thin slices of outcrop sandstone samples in the field. Background technique [0002] Natural fractures can not only provide the main channels for oil and gas migration and fluid seepage, but also serve as important storage spaces for oil and gas accumulation, thus determining the development characteristics of reservoir fractures and controlling the distribution and accumulation of oil and gas. Therefore, the study of reservoir fractures has always been one of the hot issues in the field of petroleum geology. Especially in recent years, with the continuous deepening of the research on crustal fluids, geologists have deeply realized that the water-rock chemistry (cementation, dissolution, etc.) that occurs with the participation of fluids and fluids has an important impact on the formation and evolution of fra...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/32G01N1/34
CPCG01N1/286G01N1/32G01N1/34G01N2001/2866
Inventor 王鑫涛陈勇周瑶琪赵振宇
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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