Patents by Inventor James B. Crawford

James B. Crawford has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10018016
    Abstract: A wireline deployed fluid blasting tool for removing obstructions from oil and gas wellbore tubing is disclosed. The tool has an inner tubular mandrel retaining a releasable outer sleeve creating an annular fluid passage in communication with fluid ejection ports. Resilient seals seal the annulus between the tool and the wellbore tubing allowing fluid pressure above the tool to advance the tool through the tubing. Fluid enters the annular fluid passage through fluid perforations in the outer sleeve to exit the fluid ejection ports to create a fluid blast to remove obstructions. The outer sleeve shifts along the inner mandrel by fluid pressure to open fluid inlet passages into the inner mandrel allowing fluid to enter and exit through the mandrel while bypassing the annular fluid passage and fluid ejection ports to facilitate pulling the tool from the tubing.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: July 10, 2018
    Assignee: Advanced Wireline Technologies, LLC
    Inventors: James B Crawford, Joseph W Elsbury, III
  • Patent number: 9248478
    Abstract: A carrier assembly having at least one sealing cup, a fluid bypass and adjustable wash nozzles, as well as a spear assembly having a central through bore, are attached to the distal end of a length of continuous tubing and inserted in to the flow bore of a pipeline. Fluid is pumped through the annular space between the carrier assembly and the pipeline, providing motive force for advancing the carrier assembly within the pipeline. Fluid can bypass the carrier assembly, enter the central bore of the spear assembly, and return to the surface through the central bore of the continuous tubing. A stuck pig or other obstruction is speared, and thereafter retrieved from the pipeline on the continuous tubing.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: February 2, 2016
    Assignee: AMCOL INTERNATIONAL CORP.
    Inventors: James R. Crawford, James B. Crawford, Joseph W. Elsbury, III
  • Publication number: 20160017691
    Abstract: A wireline deployed fluid blasting tool for removing obstructions from oil and gas wellbore tubing is disclosed. The tool has an inner tubular mandrel retaining a releasable outer sleeve creating an annular fluid passage in communication with fluid ejection ports. Resilient seals seal the annulus between the tool and the wellbore tubing allowing fluid pressure above the tool to advance the tool through the tubing. Fluid enters the annular fluid passage through fluid perforations in the outer sleeve to exit the fluid ejection ports to create a fluid blast to remove obstructions. The outer sleeve shifts along the inner mandrel by fluid pressure to open fluid inlet passages into the inner mandrel allowing fluid to enter and exit through the mandrel while bypassing the annular fluid passage and fluid ejection ports to facilitate pulling the tool from the tubing.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 21, 2016
    Inventors: James B. Crawford, Joseph W. Elsbury, III
  • Publication number: 20140290754
    Abstract: A system for flameless heating, wherein the system includes a modular flameless heating unit located on a singular skid. The modular flameless heating unit includes an internal combustion engine, a dynamic heat generator operatively connected to the internal combustion engine. Further, the system includes a pump being responsive to the operation of the internal combustion engine, whereby the pump is configured to provide a discharged fluid to the dynamic heat generator. Further still, the system includes a process outlet transfers the heat into a wellbore in order to affect removability of one or more deposits disposed within the wellbore.
    Type: Application
    Filed: May 22, 2014
    Publication date: October 2, 2014
    Inventors: Rusty Lamb, James B. Crawford, John Bibaeff, JR.
  • Publication number: 20140290952
    Abstract: A method of cleaning a wellbore that may include pumping a process fluid through a flameless heating unit, controlling the flameless heating unit to heat the process fluid to a temperature in a range sufficient to chemically alter or induce phase change(s) to one or more deposits disposed in the wellbore, and transferring the process fluid from the flameless heating unit into the wellbore. Other steps may include using the heated process fluid to operate a tool, optionally by wireline operations, operatively disposed in the wellbore, whereby the heated process fluid and the tool work collectively to affect the removability of deposits. The flameless heating unit may include an internal combustion engine, a dynamic heat generator operatively connected to the internal combustion engine, and one or more pumps configured to provide a discharged fluid to the dynamic heat generator.
    Type: Application
    Filed: May 22, 2014
    Publication date: October 2, 2014
    Inventors: Rusty Lamb, James B. Crawford, John Bibaeff
  • Patent number: 8707498
    Abstract: A method of cleaning a tubular with a cleaning tool that includes the steps of disposing the cleaning tool in the tubular, the cleaning tool having a main body with a first end, a second end, an inlet, an outlet, and a propulsion relief assembly disposed proximate to the second end. The method further includes the steps of sufficiently pressurizing fluid behind the tubular to propel the cleaning tool along the tubular, and increasing the pressure of the fluid to actuate the propulsion relief assembly, whereby fluid is jetted out the outlet and out of the propulsion relief assembly.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 29, 2014
    Assignee: Amcol International Corp.
    Inventors: James B. Crawford, Joseph W. Elsbury, James R. Crawford
  • Publication number: 20120174987
    Abstract: A method of cleaning a pipeline that may include the steps of pumping a process fluid through a flameless heating unit, preheating the process fluid before it enters a dynamic heat generator, controlling the flameless heating unit to heat the process fluid to a temperature in a range sufficient to melt deposits disposed in the pipeline, and transferring the process fluid from the flameless heating unit into the pipeline. Other steps may include using the heated process fluid to operate a tool operatively disposed in the pipeline, whereby the heated process fluid and the tool work collectively to melt and clear the deposits. The flameless heating unit may include an internal combustion engine, a dynamic heat generator operatively connected to the internal combustion engine, and a pump configured to provide a discharged fluid to the dynamic heat generator.
    Type: Application
    Filed: August 31, 2011
    Publication date: July 12, 2012
    Inventors: James B. Crawford, Rusty Lamb, John Bibaeff
  • Publication number: 20120097192
    Abstract: A method of cleaning a tubular with a cleaning tool that includes the steps of disposing the cleaning tool in the tubular, the cleaning tool having a main body with a first end, a second end, an inlet, an outlet, and a propulsion relief assembly disposed proximate to the second end. The method further includes the steps of sufficiently pressurizing fluid behind the tubular to propel the cleaning tool along the tubular, and increasing the pressure of the fluid to actuate the propulsion relief assembly, whereby fluid is jetted out the outlet and out of the propulsion relief assembly.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Inventors: James R. Crawford, James B. Crawford, Joseph W. Elsbury, III
  • Publication number: 20100089589
    Abstract: A method of modifying a modular well servicing combination unit comprising the steps of keeping a well servicing module in inventory and removably mounting said well servicing module onto said modular well servicing combination unit.
    Type: Application
    Filed: April 28, 2008
    Publication date: April 15, 2010
    Inventors: James B. Crawford, Phillip Crawford, Lila R. Anderson
  • Publication number: 20090151927
    Abstract: A combined system for treating an oil and/or gas well, comprising: a single transportation means having mounted thereon: a single prime mover for providing prime power for the operation of pumps and motors mounted on said transportation means; a nitrogen generator that can gather gaseous nitrogen from the earth's atmosphere; and a fluid pumping system for pumping fluids into a wellbore, said nitrogen generator and said fluid pumping system being interconnectable by plumbing and including a power transmission means responsive to the operation of said engine.
    Type: Application
    Filed: July 16, 2006
    Publication date: June 18, 2009
    Inventor: James B. Crawford
  • Publication number: 20090050311
    Abstract: A single well servicing combination unit comprising: a hydraulic manifold removably connectable to the power-take-off of an external power source to drive a plurality of hydraulic pumps and motors that control a plurality of well servicing units mounted on said combination unit, said well servicing units being interconnectable by plumbing.
    Type: Application
    Filed: April 24, 2007
    Publication date: February 26, 2009
    Inventor: James B. Crawford
  • Patent number: 7051818
    Abstract: A single tractor unit is provided for pulling a trailer, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with nitrogen generators or tanks of compressed nitrogen gas. In another alternative embodiment, a separate engine, preferably mounted with the other equipment on a trailer, skid, or barge, replaces the single tractor engine for driving the plurality of hydraulic motors. In yet another embodiment, a single engine drives a plurality of well treating systems on an off-shore installation.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: May 30, 2006
    Assignee: P.E.T. International, Inc.
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20040244993
    Abstract: A single tractor unit is provided for pulling a trailer, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with nitrogen generators or tanks of compressed nitrogen gas. In another alternative embodiment, a separate engine, preferably mounted with the other equipment on a trailer, skid, or barge, replaces the single tractor engine for driving the plurality of hydraulic motors. In yet another embodiment, a single engine drives a plurality of well treating systems on an off-shore installation.
    Type: Application
    Filed: October 22, 2003
    Publication date: December 9, 2004
    Inventors: James B. Crawford, Edward R. Lamb
  • Patent number: 6702011
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: March 9, 2004
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20030196811
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 23, 2003
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20030196813
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 23, 2003
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20030196793
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 23, 2003
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20030196797
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Application
    Filed: June 12, 2002
    Publication date: October 23, 2003
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20030196815
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 23, 2003
    Inventors: James B. Crawford, Edward R. Lamb
  • Publication number: 20030196812
    Abstract: A single tractor unit is provided for pulling a tractor, in which the tractor itself drives a plurality of hydraulic motors which control a crane unit, a coiled tubing injection unit, and the pumps and motors associated with a liquid nitrogen system which is used for injecting gaseous hydrogen into a workover well with coiled tubing. In an alternative mode, the liquid nitrogen system is replaced with one or more nitrogen generators which gather nitrogen from the earth's atmosphere to be pumped through the coiled tubing into the well being treated. Alternatively, the gaseous nitrogen source is one or more tanks of compressed nitrogen gas.
    Type: Application
    Filed: January 9, 2003
    Publication date: October 23, 2003
    Inventors: James B. Crawford, Edward R. Lamb