| 摘要 |
A variable orientation downhole actuation tool is made up of a first part which is adapted to be fixed with respect to the end of a down hole tube, and a second part which is adjustable with respect to the first part. The first and second parts are adjustable with respect to each other in any two of the three Euler angles possible angles, that is, the included angle or bend of a respective reference axis, the plane of included angle, or direction, and the rotation of the first body about its reference axis. It may also include a third part such that the third part is adjusted by at least one of the possible angles with respect to the second part, and the second part is adjusted by a further of the possible angles with respect to the first part. A passageway is provided between the first and second parts for the conveyance of material, gas, liquid, solid or some combination. A joint is provided for coupling the first part to the second part, said joint permitting the said adjustment of the first part with respect to the second part.
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