Horizontal well drilling path guiding method and device

A trajectory-guiding device and horizontal well technology, applied in directional drilling and other directions, can solve the problems of measurement information lag, drilling bit detachment, affecting real-time control of drilling trajectory, etc., and achieve the effect of improving real-time performance

Inactive Publication Date: 2016-02-03
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

The measurement information of the measurement equipment lags behind, which directly affects the real-time control of the drilling trajectory
The measurement equipment cannot obtain accurate geological information. Therefore, the uncertainty of the geological structure, the heterogeneity of the reservoir, and the engineering factors in the drilling process may cause the drilling bit t

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  • Horizontal well drilling path guiding method and device
  • Horizontal well drilling path guiding method and device

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Embodiment Construction

[0037] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0038] The invention provides a horizontal well drilling track guiding method and device. figure 1 It is a method flowchart of an embodiment of the horizontal well drilling trajectory steering method provided by the present invention, as figure 1 As shown, the method may include:

[0039] Step S1: According to the analysis and processin...

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Abstract

The invention provides a horizontal well drilling path guiding method and device. The method comprises the steps of determining the prediction range of geological mutation in the horizontal well section of a target reservoir stratum according to the analysis and processing result of the seismic data and geological data of the target reservoir stratum, determining the position of geological mutation in the prediction range and the type of geological mutation according to acquired geological data while drilling when a drilling bit in the horizontal well section reaches the prediction range, and adjusting the drilling direction of the drilling bit according to the position and type of geological mutation. By the adoption of the technical scheme, the method for predicting geological mutation is optimized.

Description

technical field [0001] The invention relates to the technical field of comprehensive interpretation of seismic and geological data, in particular to a drilling trajectory steering method and device for a horizontal well. Background technique [0002] In oil and gas development, horizontal wells can increase the length of the target layer, increase the drainage area, and increase oil and gas production. Therefore, after the reduction of oil production costs in the 1990s, my country's horizontal well drilling technology has developed rapidly and entered the stage of large-scale application . At present, horizontal well technology is an effective method for exploiting thin oil layers, hard-to-recover reserves blocks and gas reservoirs. Generally, horizontal well drilling technology includes measurement-while-drilling technology, wellbore trajectory control technology, wellbore stabilization technology, drilling and completion fluid technology, etc. Horizontal well drilling tra...

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Application Information

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IPC IPC(8): E21B7/04
Inventor 孙增玖党虎强王小善张延庆张军勇
Owner BC P INC CHINA NAT PETROLEUM CORP
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