National Oilwell Varco, L.p.

National Oilwell Dht, L.p.

Haresh Ghansyam

Russell C Gilleylen

James Robert Streater

Guodong Zhan

Deepthi Raj Setlur

Sean Matthew Donald

C Steven Isaacks

Alan H Kitching

Noe Tony Cordova

Jimmy G Livingston, Jr

Harry P Hiebeler

Robert G Rector

Russell Gilleylen

Steven D Laughlin

Murray Gilbertson

Shiran Waas

Adondria M Parker

Jr Streater James R

James R Streater

Deepthi Setlur

A method for leaching a PCD table for a cutter element includes (a) positioning a PCD table within a leaching chamber. The method also includes (b) submerging the PCD table in an acid within the leaching chamber. In addition, the method includes (c) sealing the leaching chamber. Further, the method includes (d) increasing the pressure within the leaching chamber to a pressure greater than or equal to 20,000 psi after (c).

Apparatus and methods for high pressure leaching of polycrystalline diamond cutter elements

A downhole tool comprises a housing having a longitudinal bore and an agitator assembly disposed within the longitudinal bore of the housing. A removable component is disposed within the longitudinal bore and can be removed from the housing so as to at least partially open the longitudinal bore.

Downhole pulse generating device for through-bore operations

A location of a downhole asset relative to a first environment may be tracked. The configuration information for the downhole asset is acquired, where the configuration information includes a measurement of one or more forces applied to the downhole asset during assembly of the downhole asset in the first environment. A service life of the downhole asset is determined from the configuration information. One or more parameters related to usage of the downhole environment in a second environment are measured. A remainder of the service life of the downhole asset is determined by reducing the service life by an amount proportional to usage of the downhole asset as indicated by the measurement related to usage of the downhole asset. The remaining service life may be used to automatically initiate an order for new parts.

Method and system for monitoring downhole assets

An improved ram inner seal assembly used in ram-type BOPs is disclosed. The disclosed invention provides an inner guide seal assembly that comprises a specially shaped guide body and a separate sealing element. When the ram-type BOP is closed, two opposing rams move toward one another, and the inner guide seal assembly guides a wireline (or other tubular) toward the center of the vertical bore through the BOP. The inner guide seal assembly's proximity to the ram body's centerline axis helps ensure that a positive seal is formed and that no damage occurs to the device in the central bore of the BOP. The separate, specially-shaped sealing element can be easily inserted into and removed from the guide body of the inner guide seal assembly for easy replacement.

Inner guide seal assembly and method for a ram type BOP system

Growing community of inventors

Pearland, TX, United States of America

Haresh Ghansyam