Abstract:
A validation tool (100) has a central body member (10) with threaded connections at each end (12, 13), as well as a central bore (11) extending there through. At least one battery powered video camera (20) or other optical data sensor is disposed along an outer surface of the body member and can be selective activated and de-activated. Optional mirror(s) (50) are provided to permit optimum viewing of the surrounding environment, while visual images and/or other sensed data is recorded and stored on at least one data storage media. The validation tool can be used for various purposes including wellbore integrity and verification that drilling mud has been fully displaced with completion fluid in a wellbore.
Abstract:
An assembly (100) for the illumination of a wellbore, pipeline, tank, vessel or other environment wherein light is diffused and transmitted through an optically transparent material and projected in and around a field of view of a camera lens (10). A light source is disposed within a cavity at the proximal end (102) of a cylindrical shaped, optically transparent material. Light from the source is received into the transparent material, diffused, and transmitted to the distal end of the light tube (30), where it is projected in front of and around a field of view of a camera. Control of light intensity may be variable, pre-set before operations, or fixed by component design.
Abstract:
A fluid (30) of optically clear composition is used to create a viewing window within a wellbore (1), pipelines, tanks, vessels, or any other similar environment. Selective placement of optically clear fluid facilitates acquisition of visual images and/or other data in particular areas of interest within environments containing opaque or non-transparent fluids. Such optically clear fluid can displace opaque fluids and gases, while maintaining specific viscosity, weight, and other fluid properties in order to keep opaque fluids from encroaching into a viewing area while visual data acquisition is performed.
Abstract:
A downhole camera assembly (100) comprises a camera having a side-view viewport (82) that can be conveyed and manipulated within a wellbore on flexible cable. Light emitted from a light source is diffused and directed by a transparent or translucent material (61) in a substantially 360-degree pattern within a wellbore, thereby illuminating portion(s) of the wellbore positioned laterally to the camera assembly in a field of view of the viewport. The viewport may be selectively rotated 360 degrees by a motor assembly (40) positioned within the camera assembly which can be controlled from the earth's surface.
Abstract:
A method and apparatus for visual inspection of wellbore environments wherein a real-time video feed is received at the earth's surface from a camera assembly positioned downhole within a wellbore. The camera system is capable of recording high quality video images in full streaming quality and speed in either color or black and white bands, simultaneously transmitting live visual images to the earth's surface, and accepting and acting upon commands from the surface (including, without limitation, recording programmability).