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Using Node and At-Bit Sensors to Optimize Downhole Data Communication

A node and data technology, applied in the field of data communication, can solve problems such as incompatibility and low-depth capabilities

Active Publication Date: 2020-10-20
EVOLUTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of EM telemetry include: lower depth capability, incompatibility with some formations (e.g., high-saline formations and high-resistivity-contrast formations), and some market resistance due to acceptance of older established methods

Method used

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  • Using Node and At-Bit Sensors to Optimize Downhole Data Communication
  • Using Node and At-Bit Sensors to Optimize Downhole Data Communication
  • Using Node and At-Bit Sensors to Optimize Downhole Data Communication

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Embodiment Construction

[0037] Throughout the following description, specific details are set forth in order to provide a thorough understanding to those skilled in the art. However, well known elements may not have been shown or described in detail to avoid unnecessarily obscuring the disclosure. The following description of examples of the present technology is not intended to be exhaustive or to limit the system to the precise form of any example implementation. Accordingly, the description and drawings are to be regarded in an illustrative sense rather than a restrictive sense.

[0038] figure 1 An example drilling operation is schematically shown. The drill rig 10 drives a drill string 12 that includes a drill pipe section that extends to a drill bit 14 . The illustrated drilling rig 10 includes a derrick 10A for supporting a drill string, a drill floor 10B, and a drawworks 10C. The drill bit 14 is larger in diameter than the drill string above the drill bit. The annular region 15 surroundi...

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PUM

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Abstract

Data is transmitted from sensors at a downhole location near the drill bit to surface equipment. Can be transmitted to ground equipment directly or through a series of nodes. In some cases, nodes are intelligently reconfigured to achieve desired data rates, achieve power management goals, and / or compensate for failed nodes.

Description

technical field [0001] This application relates to subterranean drilling, and in particular to communication of data to and / or from downhole electronic systems. Embodiments are applicable to drilling wells for recovering hydrocarbons. Background technique [0002] Recovery of hydrocarbons from subterranean areas typically involves drilling a wellbore. [0003] The wellbore is made using drilling equipment located at the surface that drives a drill string that ultimately extends from the surface equipment to the formation or subterranean zone of interest. The drill string can extend thousands of feet or kilometers below the surface. The end of the drill string includes the drill bit used to drill (or extend) the wellbore. Drilling fluid, usually in the form of drilling "mud," is typically pumped through the drill string. The drilling fluid cools and lubricates the drill bit and also carries cuttings back to the surface. Drilling fluids can also be used to assist in contr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/13H04B3/00H04B3/46
CPCH04B3/00H04B3/46E21B47/13E21B47/04
Inventor 帕特里克·R·德尔卡茨阿伦·W·洛根贾斯廷·C·洛根刘继利大卫·A·斯维策尔罗伯特·哈里斯巴里·丹尼尔·比特尔诺夫斯基柯蒂斯·韦斯特
Owner EVOLUTION ENG