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Dive into the research topics where Donald L. Crawford is active.

Publication


Featured researches published by Donald L. Crawford.


Archive | 2009

System and Method for Selective Activation of Downhole Devices in a Tool String

Donald L. Crawford


Archive | 2008

Actuating Downhole Devices in a Wellbore

Clovis S. Bonavides; Donald L. Crawford


Archive | 2013

Surface safe explosive tool

Donald L. Crawford


Archive | 2011

Method for selective activation of downhole devices in a tool string

Donald L. Crawford


Archive | 2008

System and method for memory pulsed-neutron gamma-ray spectroscopy logging

Daniel F. Dorffer; Clive D. Menezes; Donald L. Crawford


Archive | 2007

Fluid conductivity measurement tool and methods

Sushovon Singha Roy; Daniel F. Dorffer; Donald L. Crawford


Archive | 2013

Pressure-activated switch

Clovis S. Bonavides; Donald L. Crawford; Paul Anthony Molina; Gabriel Vicencio Mata


Archive | 2008

Mechanical actuator with electronic adjustment

Donald L. Crawford; Daniel F. Dorffer


Archive | 2007

AMBIENT-ACTIVATED SWITCH FOR DOWNHOLE OPERATIONS

Daniel F. Dorffer; Donald L. Crawford


Distributed Computing | 2009

Case Histories of a New Wireline Logging Tool for Determination of Free Point in Support of Drilling and Pipe Recovery Operations

Calvin W. Kessler; Daniel F. Dorffer; Donald L. Crawford; Rory J. Dehart; Jerry Weiser

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