Drilling guidance method, system and device based on earthquake while drilling and storage medium

A drilling and drilling technology, applied in the field of geological drilling, can solve the problems of low information accuracy, underdetermined velocity inversion, inaccurate velocity model, etc., and achieve the effect of improving processing quality and accuracy

Active Publication Date: 2020-06-19
南京加宝囤信息科技有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the existing problems of low information accuracy, inaccurate velocity model and underdetermined velocity inversion in existing seismic drilling while data supplementation is not combined with digital cuttings technology, the purpose of the present invention is to provi...

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  • Drilling guidance method, system and device based on earthquake while drilling and storage medium
  • Drilling guidance method, system and device based on earthquake while drilling and storage medium
  • Drilling guidance method, system and device based on earthquake while drilling and storage medium

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Embodiment 1

[0059] Such as Figure 1~3 As shown, the seismic-while-drilling-based drilling guidance method provided in this embodiment includes a drilling phase and a drilling path correction phase.

[0060] In this embodiment, in the drilling stage, the drilling path is determined according to the seismic migration profile of the area to be drilled, and then the drilling is carried out in a seismic-while-drilling manner according to the drilling path.

[0061] During the seismic drilling process, it is necessary to use various information during the drilling process, including well logging and microseismic information, for data processing and analysis, and then to achieve fine imaging of seismic waves, so as to optimize the drilling path trajectory and ensure The accuracy of the drilling path, therefore, in this embodiment, it is necessary to update the seismic migration profile of the area to be drilled in real time during the drilling path correction stage, so as to realize the real-ti...

Embodiment 2

[0119] Such as Figure 4 As shown, this embodiment is an implementation system using the seismic-while-drilling-based drilling guidance method described in Embodiment 1, including a seismic migration profile generation module, a drilling path generation module, a cuttings digital processing module and cuttings data acquisition module.

[0120] The seismic migration profile generating module is used to generate the seismic migration profile of the area to be drilled.

[0121] The drilling path generation module is communicatively connected to the seismic migration profile generation module, and is used to generate a drilling path according to the seismic migration profile.

[0122] The cuttings digital processing module is used to digitally process cuttings generated during drilling to obtain a core pore structure model at a certain depth in the drilling area.

[0123] The cuttings data acquisition module is communicatively connected to the cuttings digital processing module,...

Embodiment 3

[0127] Such as Figure 5 As shown, this embodiment provides a hardware device for implementing the seismic-while-drilling-based drilling guidance method described in Embodiment 1, including a memory and a processor connected by communication, wherein the memory is used to store computer programs, and the processing The device is used to execute the computer program to implement the seismic-while-drilling-based drilling guidance method described in Embodiment 1.

[0128] For the hardware device provided in this embodiment, its working process, working details and technical effects can be referred to Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a drilling guidance method, system and device based on an earthquake while drilling and a storage medium. Rock debris generated in the drilling process is collected; digital processing is carried out; obtaining core pore structure model, the physical property parameter information of the stratum encountered in the drilling process is provided in real time through the digital rock debris technology, the drilling position can be rapidly and accurately judged and predicted, very accurate stratum data and a stratum speed model can be provided for processing of seismic drilling data while drilling, and the purpose of guiding on-site drilling decisions is achieved. Besides, the digital rock debris information is used as the supplement of the seismic drilling data while drilling, so that the establishment of an initial velocity model can be realized more finely, the horizon, velocity and anisotropy constraints of the digital rock debris are increased on the basis of aconventional velocity inversion formula, the seismic data processing quality is greatly improved, and the precision of the seismic technology while drilling is improved.

Description

technical field [0001] The invention relates to the technical field of geological drilling, in particular to a drilling guidance method, system, equipment and storage medium based on seismic while drilling. Background technique [0002] Seismic-while-drilling technology plays an important role in deep seismic exploration. Seismic-while-drilling can provide important geophysical parameters during drilling, including 3D pore pressure prediction and accurate structural imaging update before the drill bit, so as to optimize the drilling trajectory. Seismic-while-drilling technology is a recognized worldwide problem, and a complete set of acquisition methods and corresponding processing technologies have not yet been formed. [0003] The use of seismic data while drilling ultimately requires accurate acquisition of geophysical characteristics such as wave impedance, reflection coefficient, attenuation, layer velocity, Poisson's ratio, and formation anisotropy. and provide releva...

Claims

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Application Information

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IPC IPC(8): G06F30/20
Inventor 舒梦珵梁瑶舒国旭高正辉霍守东
Owner 南京加宝囤信息科技有限公司
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