Method and device for dynamically measuring hole deviation and toolface angle in condition of small hole deviation

A tool face angle, dynamic measurement technology, applied in the field of oil and natural gas drilling, can solve the problem of not being able to accurately reflect the real-time situation of well deviation and tool face, and achieve the goal of improving drilling efficiency, improving accuracy and precision, and reducing adverse effects. Effect

Active Publication Date: 2015-04-08
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a method and device suitable for dynamic measurement of the tool face angle of the well deviation under the condition of small well dev

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  • Method and device for dynamically measuring hole deviation and toolface angle in condition of small hole deviation
  • Method and device for dynamically measuring hole deviation and toolface angle in condition of small hole deviation
  • Method and device for dynamically measuring hole deviation and toolface angle in condition of small hole deviation

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. However, the described embodiments are only illustrative, and the present invention is not limited to the embodiments.

[0028] The invention provides a method and a device suitable for the dynamic measurement of the face angle of a well deviation tool under the condition of a small well deviation. The measurement method is realized by an automatic vertical drilling system. Such as figure 1 Shown is the conceptual schematic diagram of the automatic correction of the automatic vertical drilling system of the present invention. First, the inclination angle and the inclination azimuth angle are detected by the sensor as a comprehensive measurement unit, and then the downhole control unit is used to control the deviation, and the deviation correction module is used to correct the deviation, thereby controlling the action of the steering mechanism (block)...

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Abstract

The invention relates to a method and device for dynamically measuring the hole deviation and the toolface angle in conditions of small hole deviation, and solves the problems of the prior art that the real-time situations of the hole deviation and the toolface can not be accurately and really reflected in the underground vibration and impact interference environment. The device mainly comprises a signal collection unit for collecting an acceleration signal and converting the acceleration signal into a digital signal for subsequent processing through sampling and filtering; and a digital signal processing unit for processing the signal which is input from the signal collection unit and outputting the parameters of the hole deviation and the toolface according to the acceleration signal.

Description

Technical field [0001] The present invention relates to the field of oil and natural gas drilling. More specifically, the present invention relates to a method and device suitable for the dynamic measurement of the face angle of a well deviation tool under the condition of a small well deviation. Background technique [0002] As the oilfield exploration in the eastern region gradually enters the middle and late stages, it is necessary to find new reserves to replace it. The western region is the main replacement area for oil. The main replacement areas for oil production in western my country are Tarim, Junggar and Tuha in Xinjiang, the Qaidam Basin in Qinghai and eastern Sichuan in Sichuan. However, more than two-thirds of the oil and gas reserves in these areas are buried in complex deep formations. It is difficult to guarantee the quality of the wellbore when drilling in these areas, and the inclination of the upper well section is one of the main difficulties. With the deepe...

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Application Information

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IPC IPC(8): E21B47/02
CPCE21B47/02E21B47/022
Inventor 张洪涛盛利民范锦辉管康彭浩高学之邓乐
Owner BC P INC CHINA NAT PETROLEUM CORP
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