Butterfield, Jr.
Charles A. Butterfield, Jr., Houston, TX US
Patent application number | Description | Published |
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20120152565 | DOWNHOLE RELEASE JOINT WITH RADIALLY EXPANDABLE MEMBER - A downhole releasable tubular connection includes a joint between two tubing strings, wherein one of the two tubing strings is radially expanded and plastically deformed by an expansion device. When the expansion device is moved adjacent to the joint, a threaded connection mechanism in the joint reacts to the radially outward forces of the expansion device and releasably expands, thereby decoupling the tubing strings. | 06-21-2012 |
20150021029 | Method and Apparatus for Casing Entry - According to one aspect of the disclosure, an intercept well for penetrating an existing tubular is drilled. A casing entry tool is provided in the intercept well and operated to form at least one aperture in the wall of the existing casing. The casing entry tool may be oriented toward the target tubular. In some embodiments, a generally concave notch may be positioned on the casing entry tool and adapted to engage with the convex outer surface of the target tubular. In some embodiments, a locking mechanism may retain the orientation of the casing entry tool within the intercept well. | 01-22-2015 |
Charles Anthony Butterfield, Jr., Cypress, TX US
Patent application number | Description | Published |
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20140041880 | HYBRID EXPANSION CONE - An expansion cone comprising a cone body having a first expansion surface with a diameter that increases from a leading edge to a first expansion diameter. A resilient sleeve disposed on an actuation mandrel that is coupled to the cone body. Movement of the actuation mandrel relative to the cone body moves an outer surface of the resilient sleeve to a second expansion diameter that is greater than the first expansion diameter. | 02-13-2014 |
Charles Perry Butterfield, Jr., Boulder, CO US
Patent application number | Description | Published |
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20120262095 | AIR GAP CONTROL SYSTEMS AND METHODS - In one embodiment, an apparatus includes a first member that supports a magnetic flux carrying member and a second member that supports a magnetic flux generating member disposed for movement relative to the first member. An air gap control system is coupled to at least one of the first member or the second member and includes an air gap control device that is separate from a primary magnetic flux circuit formed between the first member and the second member. The air gap control device is configured to exert a force on one of the first and second members in response to movement of the other of the first and second members in a direction that reduces a distance between the first and second members to maintain a minimum distance between the first and second members and/or substantially center the one of the first and second members within the other. | 10-18-2012 |