Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to identify deformations, detect and determine the severity of other defects, and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to determine deformations, detect and determine the severity of other defects and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to determine deformations, detect and determine the severity of other defects and visually observe the inside of the inspected vessel.

Abstract: This invention comprises a system and a method for inspecting the inside of delayed petroleum coking vessels to determine deformations, detect and determine the severity of other defects and visually observe the inside of the inspected vessel.

Abstract: A portable field office having a generally rectangular base section configured to enclose the lower portion of an inner space; a generally rectangular top section configured to enclose an upper portion of the rectangular inner space and moveable between an upper extended position for use as a field office and a lowered position to form a module suitable for air transport and lift assemblies positioned to raise the top section between an extended and a lowered position and a door providing access to the inner space in the office in both the extended position and in the lowered position.

Abstract: Petroleum coking drums and other vessels may be inspected to determine if dimensional changes or bulges have occurred in the surface of the vessel by an inspection device including a reflected laser light measuring survey apparatus and a video camera mounted on a frame which may be disposed in selected vertical positions along a central axis of the vessel and rotatably positioned by a rotary positioner interposed between a support stem for the device and the frame. Plural distance measurements and video scans are transmitted to a remote control console for recording and plotting of the contours of bulges or other dimensional anomalies surveyed by the survey apparatus. Components of the device are sealed or gas pressurized to minimize the chance of explosion in hazardous environments such as the interior of a petroleum coking drum. The system is adapted to be supported on the distal end of a coking drum drillstem and centralized by a removable clamp unit mounted on the drum manway flange.