Abstract: The present invention relates to the technical field of unconventional oil and gas geology. It discloses a method and a system for quantitatively evaluating the sealing property of shale systems. Utilizing optical microscopy and field emission scanning electron microscopy, the present invention quantifies a bitumen content and pore structure parameters in a shale reservoir following qualitative identification. It classifies shale formations into four sealing types: early-stage closed and late-stage closed, early-stage closed and late-stage open, early-stage open and late-stage closed, and early-stage open and late-stage open. This classification is of significance for accurately evaluating shale preservation conditions and exploration potential. The present invention verifies the evaluations of sealing property of the shale systems by virtue of the measured formation pressures and the actual production data from shale gas wells, and is conferred with improved scientific rigor by judgment and comparison.

Abstract: A high-speed stamping transfer robot, including a Y-axis portion, a Z1-axis portion, a Z2-axis portion (upper arm), a mechanical lower arm portion and a tooling portion, wherein the Z1-axis portion is fixedly connected to the Y-axis portion; the Z2-axis portion (upper arm) is in rotational connection with the Z1-axis portion and the Y-axis portion and is capable of moving vertically relative to the Z1-axis portion while moving horizontally relative to the Y-axis portion; the mechanical lower arm portion is in rotational connection with the Z2-axis portion (upper arm) and is capable of rotating relative to the Z2-axis portion (upper arm); and the tooling portion is fixedly connected to the mechanical lower arm portion. Through linkage among the respective axis portions, high-speed and high-load stable transfer of sheets between presses can be realized.

Abstract: A high-speed stamping transfer robot, including a Y-axis portion, a Z1-axis portion, a Z2-axis portion (upper arm), a mechanical lower arm portion and a tooling portion, wherein the Z1-axis portion is fixedly connected to the Y-axis portion; the Z2-axis portion (upper arm) is in rotational connection with the Z1-axis portion and the Y-axis portion and is capable of moving vertically relative to the Z1-axis portion while moving horizontally relative to the Y-axis portion; the mechanical lower arm portion is in rotational connection with the Z2-axis portion (upper arm) and is capable of rotating relative to the Z2-axis portion (upper arm); and the tooling portion is fixedly connected to the mechanical lower arm portion. Through linkage among the respective axis portions, high-speed and high-load stable transfer of sheets between presses can be realized.