Horizontal well track optimization method based on RS three-dimensional sensitivity seismic attribution analysis

Abstract

The invention discloses a horizontal well track optimization method based on RS three-dimensional sensitivity seismic attribution analysis. The core of the method is extraction of three-dimensional seismic attribution, RS three-dimensional sensitivity seismic attribution analysis, while-drilling seismic attribution correlation consistency analysis and horizontal well track optimization design. The method integrates multiple disciplines such as logging, seism, geology and rock physics, a rough set (RS) analysis technology, a seism multi-attribution technology, a three-dimensional seismic attribution sensitivity analysis technology, a horizontal well geosteering analysis technology and a track optimization technology are comprehensively combined, the method is suitable for horizontal well track optimization design, while-drilling tracking and other important links in a horizontal well developing stage, and the reliability and the real-time guidance of horizontal well section prediction analysis are effectively improved.

Description

technical field [0001] The invention relates to a horizontal well trajectory optimization method based on RS three-dimensional sensitive seismic attribute analysis for horizontal well trajectory optimization design and tracking while drilling in the horizontal well development stage, which can effectively improve the reliability and real-time guidance of horizontal well section prediction analysis sex. Background technique [0002] Horizontal well technology, as an important technology for adjusting old oilfields to tap potentials to enhance recovery and new oilfields to achieve efficient development with fewer wells, is known as a "major breakthrough" in the world's petroleum industry. Horizontal well technology appeared in the 1950s (pure experimental stage), and entered a stage of vigorous development and perfection from the late 1980s to the early 1990s. my country introduced horizontal well technology in the mid-1960s, and after the "Eighth Five-Year Plan" scientific a...

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Problems solved by technology

[0007] Although geophysical prospecting technology has played an important role in the design of horizontal wells, it still faces the following problems: geophysical prospecting technology mainly plays a role in the geological design of horizontal wells and the foundation design of horizontal sections, and has not yet penetrated into the design, implementation, and tracking of horizontal wells. the whole process

[0008] Domestic horizontal well geosteering technology is relatively backward, while foreign companies only provide services, domestic companies currently do not have the corresponding independent technology