Weatherford/lamb, Inc.

National Oilwell Varco, L.p.

Chris Johnson

Paul B Wilson

Gary Duron Ingram

Paul James Wilson

Varadaraju Gandikota

Deborah Lynn Banta

Jacob Bramwell

Nathan Follett

Lydia Mata Mireles

Sergio Garcia

Minh-Tuan Nguyen

Ali A Al-Quraishi

Stone Fagley

Jacob Bramell

Lydia Mireles

A wiper () for a blowout preventer having an adapter ring () and a piston () slideable relative to the adapter ring along an interface can include a base () adapted to couple the wiper to the adapter ring and a head () coupled to the base. The head can include a first portion adapted to bridge the interface and contact the piston and a second portion adapted to contact the adapter ring and support the first portion. The second portion of the head can be adapted to at least partially resist rotation of the wiper. A blowout preventer can include one or more wipers as shown and described.

SBOP swarf wiper

Anti-extrusion devices, packer elements, and inflatable packers include shape memory polymer (SMP) materials to enhance the operation of a packer, a bridge plug, or other downhole isolation tool. Seal system use seals of various material including SMP materials as booster for the seal produced. Tool for flow shut-off and sliding sleeve applications use SMP materials to open or close off flow through a tool.

Wellbore isolation tool using sealing element having shape memory polymer

Growing community of inventors

Houston, TX, United States of America

Chris Johnson