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Systems and methods for horizontal well correlation and geosteering

一种地质导向、井眼的技术,应用在钻孔设备和方法、土方钻采、钻井设备等方向,能够解决不能利用3D环境、不准确相关性、2D解释很难等问题

Inactive Publication Date: 2013-01-23
LANDMARK GRAPHICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, they cannot take advantage of the benefits offered by a full 3D environment, and interpreting 2D back into project databases and geographic models is difficult
Most 2D geosteering applications must export horizontal well related data for subsequent import back into the project database, a time consuming process
Additionally, traditional 2D geosteering applications cannot display depth-converted seismic backgrounds, which can be dynamically updated with new or additional seismic data
In fact, many traditional 2D geosteering applications cannot support multiple Type Logs (such as Well Logs), which are used to correlate horizontal sections of boreholes with variable geology
This deficiency can lead to inaccurate correlations and incorrect geosteering indications

Method used

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  • Systems and methods for horizontal well correlation and geosteering
  • Systems and methods for horizontal well correlation and geosteering
  • Systems and methods for horizontal well correlation and geosteering

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Embodiment Construction

[0030] The subject matter of the invention is described in detail, but the description itself is not intended to limit the scope of the invention. It is thus also possible to implement the subject matter in other ways, including different steps or combinations of steps similar to those described herein, and in conjunction with other present or future technologies. In addition, although the term "step" may be used herein to describe various elements of a method employed, the term should not be construed as implying any particular order between the various steps disclosed herein, unless a specific order is used. The description is otherwise expressly limited. Although the following description refers to the oil and gas industry, the systems and methods of the present invention are not limited thereto, and can be applied to other industries to achieve similar results.

[0031] method description

[0032] now refer to figure 1 , which shows a flowchart of one embodiment of a me...

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Abstract

Systems and methods for horizontal well correlation and geosteering, which include using a correlated 2D model and updated 3D model to determine target lines from Hie end of a horizontal section of the wellbore to a target point in the formation.

Description

[0001] Cross References to Related Applications [0002] Not applicable [0003] Statement on Federal Research Funding [0004] Not applicable technical field [0005] The present invention generally relates to horizontal well correlation and geosteering. More specifically, the present invention relates to updating a 3D ("3D") modeled surface from an associated 2D ("2D") modeled surface for use along a target line to a target layer The end of a horizontal section of a pilot (geosteering) wellbore. Background technique [0006] By some estimates, 80% of new oil and gas wells are horizontal. A horizontal well is a deviated borehole that includes a horizontal section. All of these horizontal wells must be steered accurately and efficiently because time is of the essence when drilling costly deviated boreholes, and errors in geosteering (drilling) can be expensive, if not potentially dangerous. Most geosteering applications are stand-alone 2D applications that are not inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG06F17/5009E21B47/09E21B7/046G06F30/20
Inventor 理查德·J·兰杰维特福瑞德·B·波兰汤姆·C·达芬
Owner LANDMARK GRAPHICS CORP
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