IP Library Granted Patent US 10,392,875
Granted Patent B2
US 10,392,875 · App. 15/281,274 · Granted Aug 27, 2019

Gripper assembly for continuous rod and methods of use thereof

Inventor: Hermann Basler (Stony Plain, CA)
Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
E21B19/06E21B19/22E21B43/126
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Quick Facts
Patent No.
US 10,392,875
App. No.
15/281,274
Granted
Aug 27, 2019
Kind
B2
Abstract

The present disclosure relates to a gripper assembly for handling continuous rod. The gripper assembly may include a gripper face with a gripper profile forming a surface in the gripper face and a texture on a portion of the surface. The texture has a plurality of ridges having a yield strength sufficient to transfer a shear force to the gripper assembly at least as large as a weight of a continuous rod.

Claims (12)

1. A gripper assembly for handling continuous rod, comprising:

a housing;

two or more gripper bars rotatably disposed in the housing, wherein each gripper bar includes a gripper face having a face width and a face length, and a gripper bar profile forming a surface in the gripper face, the gripper bar profiles make up a gripper profile, and rotation of the gripper bars varies the gripper profile adapted to various rod shapes and sizes; and

a fastener engaging with a bore in the housing and contouring on the gripper bars to secure the gripper bars in the housing.

2. The gripper assembly of claim 1 , wherein each gripper bar rotates independently of the other gripper bars.

3. The gripper assembly of claim 1 , wherein each gripper bar has a gripper bar face having a gripper bar face width, and at least one gripper bar face width is between about 5% and about 35% of the face width.

4. The gripper assembly of claim 1 , wherein:

each gripper bar has a gripper bar face having a gripper bar face width;

the plurality of gripper bars comprises two gripper bars; and

each gripper bar face width is between about 40% and about 60% of a diameter of the respective gripper bar.

5. A method of handling a rod string, comprising;

supporting at least a portion of a weight of the rod string with a plurality of gripper assemblies of claim 1 .

Assignments (8)
PATENT SECURITY INTEREST ASSIGNMENT AGREEMENT Recorded Apr 26, 2023
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 063470/0629 →
SECURITY INTEREST Recorded Oct 1, 2021
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.; PRECISION ENERGY SERVICES, INC.; WEATHERFORD CANADA LTD.; WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH; WEATHERFORD U.K. LIMITED
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 057683/0706 →
RELEASE OF SECURITY INTEREST Recorded Oct 1, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.; PRECISION ENERGY SERVICES, INC.; WEATHERFORD CANADA LTD; WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH; PRECISION ENERGY SERVICES ULC; WEATHERFORD U.K. LIMITED
Reel/Frame 057683/0423 →
SECURITY INTEREST Recorded Aug 28, 2020
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.; PRECISION ENERGY SERVICES, INC.; WEATHERFORD CANADA LTD.; WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH; PRECISION ENERGY SERVICES ULC; WEATHERFORD U.K. LIMITED
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 054288/0302 →
RELEASE OF SECURITY INTEREST Recorded Aug 28, 2020
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.; PRECISION ENERGY SERVICES, INC.; WEATHERFORD CANADA LTD.; WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH; PRECISION ENERGY SERVICES ULC; WEATHERFORD U.K. LIMITED
Reel/Frame 053838/0323 →
SECURITY INTEREST Recorded Dec 26, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS, LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY, INC.; PRECISION ENERGY SERVICES, INC.; WEATHERFORD CANADA LTD.; WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH; PRECISION ENERGY SERVICES ULC; WEATHERFORD U.K. LIMITED
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS ADMINISTRATIVE AGENT
Reel/Frame 051419/0140 →
SECURITY INTEREST Recorded Dec 18, 2019
From: WEATHERFORD TECHNOLOGY HOLDINGS LLC; WEATHERFORD NETHERLANDS B.V.; WEATHERFORD NORGE AS; HIGH PRESSURE INTEGRITY INC.; PRECISION ENERGY SERVICES INC.; WEATHERFORD CANADA LTD.; WEATHERFORD SWITZERLAND TRADING AND DEVELOPMENT GMBH; PRECISION ENERGY SERVICES ULC; WEATHERFORD U.K. LIMITED
To: WELLS FARGO BANK NATIONAL ASSOCIATION AS AGENT
Reel/Frame 051891/0089 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 21, 2016
From: BASLER, HERMANN
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 040083/0141 →
Continuity (1)
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