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Wellbore drill bit nozzle

A wellbore and nozzle technology, used in drill bits, drilling equipment, earth-moving drilling, etc., can solve problems such as spending a lot of time, money and drilling fluid volume, insufficient pumping LCM, etc.

Active Publication Date: 2021-01-08
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a significant cost of time, money and drilling fluid volume
In some respects, the drill nozzle may not be sufficient to efficiently pump LCM through the drill nozzle to solidify lost fluid

Method used

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  • Wellbore drill bit nozzle
  • Wellbore drill bit nozzle
  • Wellbore drill bit nozzle

Examples

Experimental program
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Embodiment Construction

[0037] figure 1 is a schematic diagram of an exemplary wellbore system 10 including a wellbore bit nozzle according to the present disclosure. Overall, figure 1 A portion of one embodiment of a wellbore system 10 is shown in which a wellbore drill bit ("bit") includes nozzles for receiving and in some respects accelerating the flow of drilling fluid used during drilling operations, according to the present disclosure. As described more fully in this disclosure, nozzles are comprised of materials that are soluble, susceptible to corrosion, or otherwise removable (e.g., removable in situ in the wellbore without the need for lifting ) constitutes one or more parts. In some aspects, the dissolvable material may (at least partially) dissolve from the nozzle, or otherwise become eroded, when the dissolvable material is placed in contact with a solution (eg, in drilling fluid).

[0038] As shown, wellbore system 10 accesses subsurface formation 40 and provides access to hydrocarbo...

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PUM

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Abstract

A wellbore drill bit assembly includes a drill bit that includes a drilling fluid pathway that has an inlet fluidly connected to a drilling fluid entrance of the drill bit and an outlet fluidly connected to a drilling fluid exit of the drill bit; and a nozzle positioned in the drilling fluid pathway, where at least a portion of the nozzle includes a removable material configured to dissolve or erode in contact with a drilling fluid additive.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application Serial No. 15 / 944,957, filed April 4, 2018, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to a nozzle for a wellbore drill bit. Background technique [0004] During drilling operations, drilling fluid may "lose" into the formation due to the instability of the formation surrounding the wellbore or other factors. In some cases, large amounts of lost circulation material (LCM) are added to the drilling fluid to help stop the loss of the drilling fluid into the formation. Typically, lost fluid must be cured before being withdrawn from the well and then run back into the well through another bottom hole assembly (BHA) (eg, an open pipe for squeeze cementing). Alternatively, the well section may be drilled with lost fluid (eg, blindly); however, once the drill bit reaches the target depth, the los...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/61E21B21/00
CPCE21B10/61E21B21/003E21B2200/08E21B10/602
Inventor 阿哈默德·穆罕默德·阿尔-阿布杜勒贾巴尔
Owner SAUDI ARABIAN OIL CO