IP Library › Granted Patent US 7,954,559
Granted Patent B2
US 7,954,559 · App. 11/514,411 · Granted Jun 7, 2011

Method for optimizing the location of a secondary cutting structure component in a drill string

Assignee: Smith International, Inc.
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Quick Facts
Patent No.
US 7,954,559
App. No.
11/514,411
Granted
Jun 7, 2011
Kind
B2
Abstract

A method of drilling a well includes at least one drill bit and at least one secondary cutting structure. The method includes determining a neutral point of a drill string, positioning at least one secondary cutting structure based on the neutral point of the drill string, and drilling an earth formation.

Claims (7)

1. A method of drilling a well using at least one drill bit and at least one secondary cutting structure, comprising:

determining a neutral point of a drill string;

positioning at least one secondary cutting structure based on the neutral point of the drill string; and

drilling an earth formation.

2. The method of claim 1 , wherein the positioning comprises placing the at least one secondary cutting structure within 60 feet of the neutral point.

3. The method of claim 2 , wherein the positioning comprises placing the at least one secondary cutting structure within 30 feet of the neutral point.

4. The method of claim 3 , wherein the positioning comprises placing the at least one secondary cutting structure within 10 feet of the neutral point.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 1, 2006
From: PAEZ, LUIS C.
To: SMITH INTERNATIONAL, INC.
Reel/Frame 018267/0752 →
Continuity (4)
Continuation In Part 11137713 · May 25, 2005
Continuation In Part 11365065 · Feb 28, 2006
Continuation In Part 11100337 · Apr 6, 2005
Related Publication 20070005316A1 · Jan 4, 2007