Reservoir fluid detection method and device and electronic equipment

A fluid detection and reservoir technology, applied in measuring devices, geophysical measurement, seismology, etc., can solve problems such as unproposed solutions, large data errors, inaccurate detection, etc., to achieve reservoir fluid detection and reduce data effect of error

CN114114402AInactive Publication Date: 2022-03-01CHINA UNIV OF PETROLEUM (BEIJING)
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-03-01
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a reservoir fluid detection method and device and electronic equipment. Specifically, when reservoir fluid detection is carried out, target seismic data of a target area can be firstly obtained; according to the target seismic data, generating corresponding target time-frequency spectrum data; determining a kurtosis data volume according to the target time-frequency spectrum data and the corrected kurtosis coefficient equation; and performing reservoir fluid detection on the oil and gas reservoir in the target area by using the kurtosis data volume. According to the method, high-resolution target time-frequency spectrum data is generated based on target seismic data, then a corresponding kurtosis data body is directly calculated by using the target time-frequency spectrum data, and reservoir fluid detection is carried out by using the advantage that the kurtosis data body can better reflect the corresponding relation of amplitude frequency and high-frequency attenuation loss. Therefore, data errors can be effectively reduced, and reservoir fluid detection of the target area can be accurately and efficiently realized.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] This specification belongs to the technical field of oil and gas exploration and development, and in particular relates to reservoir fluid detection methods, devices and electronic equipment. Background technique

[0002] In the process of oil and gas exploration and development, it is often necessary to detect the reservoir fluid in the oil and gas reservoirs in the area first; then use the detection results as a reference to guide the specific oil and gas exploration and development in the area.

[0003] Most of the existing methods require data fitting when detecting reservoir fluids. Specifically, based on the existing method, the frequency-amplitude spectrum of each time sampling point of the seismic signal needs to be extracted first; and then the attenuation gradient is obtained by fitting the frequency-amplitude spectrum to detect the reservoir fluid. However, when detecting reservoir fluid based on the above methods, there are often problems ...

Examples

Embodiment Construction

[0047] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0048] Considering that there are often amplitude anomalies related to oil and gas reservoirs in seismic data. Specifically, in the time domain, when a seismic wave passes through an oil-gas reservoir containing oil-gas fluid, the seismic wave will cause anomalies in amplitude due to attenuation. In the frequency domain, it will be specifically manifested as t...