A dynamic optimization design method for measuring mud pressure wave signal period while drilling

A technology of mud pressure and signal cycle, which is applied in measurement, earthwork drilling, wellbore/well components, etc., can solve the problems that experience is not necessarily reliable, and achieve the effect of avoiding blind reliance on experience and great application value

Active Publication Date: 2022-04-12
CNPC BOHAI DRILLING ENG +1
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Problems solved by technology

However, after changing the operating area, the previous experience may not be reliable under engineering conditions with large differences.

Method used

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  • A dynamic optimization design method for measuring mud pressure wave signal period while drilling
  • A dynamic optimization design method for measuring mud pressure wave signal period while drilling
  • A dynamic optimization design method for measuring mud pressure wave signal period while drilling

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Embodiment Construction

[0045] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the embodiments of the present invention.

[0046] In order to thoroughly understand the embodiments of the present invention, a detailed structure will be set forth in the following description. It is evident that practice of the embodiments of the invention is not limited to specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0047] Embodiments of the present invention are described in further detail ...

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Abstract

The invention relates to the technical field of measurement-while-drilling in petroleum and natural gas engineering, and discloses a dynamic optimization design method for measuring the period of mud pressure wave signals while drilling. The change of its period; measure the noise through the pressure sensor and analyze the noise spectrum; calculate the signal-to-noise ratio of the attenuated signal and the measurement noise based on the signal attenuation prediction results; Spectrum, select the mud pressure wave signal period. The invention can adjust the mud pressure wave signal period of the measurement while drilling according to the specific construction conditions of a single well; moreover, the method is simple and reliable, can effectively avoid blindly relying on experience, and has great application value.

Description

technical field [0001] The invention relates to the technical field of measurement-while-drilling in petroleum and natural gas engineering, in particular to a dynamic optimization design method for measuring mud pressure wave signal period while drilling. Background technique [0002] The measurement-while-drilling technology can wirelessly transmit the measurement data such as temperature, well deviation, azimuth, formation resistivity, and formation gamma measured by downhole tools to the ground, so that engineers and technicians can grasp the dynamic changes of important downhole engineering data, which is to realize directional Key technologies for drilling and geosteering drilling. [0003] At present, the measurement data while drilling in the industry mainly adopts the wireless data transmission technology based on the mud pressure wave in the drill string. The working signal period of various existing measurement-while-drilling instruments is often fixed at several ...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): E21B47/18E21B49/00
CPCE21B47/18E21B49/00
Inventor徐朝阳张所生张爱兵郭劲松高廷正魏春明张猛胡秀凤赵小勇程晋吴冬凤王威杨芳舒王禹航
OwnerCNPC BOHAI DRILLING ENG