Method for determining development position of fractured-vuggy carbonate reservoir

Abstract

The invention relates to a method for determining the development position of a fractured-vuggy carbonate reservoir, which comprises the following steps: carrying out fine calibration on the fractured-vuggy carbonate reservoir by using the three-dimensional conventional seismic data of great deserts; and carrying out color filling and waveform display on a wave trough and a wave crest by using a seismic-section display method, wherein the color filling is performed according to the vibration amplitudes of the seismic wave trough and the seismic wave crest; and after a wiggle variable area display mode is selected, and determining the transverse development position of the fractured-vuggy carbonate reservoir and the variation situations of the fractured-vuggy carbonate reservoir through observing the waveform changes corresponding to the fractured-vuggy carbonate reservoir calibrated on a seismic profile and the color change relations after the area is changed, wherein same waveform and same filled color after the area is changed instruct a same physical development zone of the reservoir. By using the method of the invention, the development position of the fractured-vuggy carbonate reservoir can effectively be determined, the design on horizontal well paths is guided in actual applications, and all completely-drilled horizontal wells can produce high-capacity oil-gas flows.

Description

technical field [0001] The invention relates to a method for determining the development position of carbonate fracture-cavity reservoirs. Background technique [0002] At home and abroad, there is no mature technical method for fine calibration of the development position of carbonate fracture-cavity reservoirs. However, in the actual exploration and development of carbonate fracture-cavity reservoirs, complex well conditions such as blowouts and leaks are often encountered. , especially for fractured-vuggy carbonate reservoirs, the use of horizontal wells for exploration and development has become increasingly necessary. How to ensure that well trajectory design can not only drill high-quality fractured-vuggy carbonate reservoirs, but also avoid drilling accidents The key to solve the problem is to maintain good and fast drilling, to achieve the purpose of efficient exploration and development, to select the correct prediction method for the development position of carbona...

AI Technical Summary

Problems solved by technology

[0002] At home and abroad, there is no mature technical method for fine calibration of the development position of carbonate fracture-cavity reservoirs. However, in the actual exploration and development of carbonate fracture-cavity reservoirs, complex well conditions such as blowouts and leaks are often encountered. , especially for fractured-vuggy carbonate reservoirs, the use of horizontal wells for exploration and development has become increasingly necessary. How to ensure that well trajectory design can not only drill high-quality fractured-vuggy carbonate reservoirs, but also avoid drilling accidents The key to solving the problem is to choose the correct prediction method for the development location of fractured-vuggy carbonate reservoirs, maintain good and fast drilling, and achieve the goal of efficient exploration and development.

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