Abstract: Pipe joint for joining two pipe end sections (1, 1'), the pipes support in their walls one or more bores (7) and/or lines or conduits (8) for hydraulic or electrical energy transfer. The pipe joint comprises a pipe union (3) with internal threads (13, 13'), one section thereof is threaded to the right, and another to the left. These threads correspond respectively with similar external threads (6, 6') at the pipe ends. A joining part (2) is arranged between the two pipe ends, and serves to mutually center and lock the pipe end sections. In the joining part (2) there is arranged joining sleeves (4) for each bore (7) or line (8), to obtain a tight joint between these.

Abstract: An injector (1) for injecting a traceable material into an oil and/or gas reservoir is lowered down into a bore hole that is in communication with the reservoir. An electro-hydraulic system is activated to inject a traceable material stored in a container into the reservoir. The injector is provided with a gland plate (7) that seals a space between the injector and the wall of the bore hole (16) in a manner that prevents traceable material from being distributed in the bore hole, but secures direct injection of the material into the reservoir. The injector is adapted to be positioned at a specific depth level in the bore hole, and to be cleaned by pressurized liquid after the injection operation is completed.

Abstract: A device for deep well sampling when drilling for, or production of, oil and gas, includes a chamber for receiving samples and a valve for opening and closing such chamber. The device includes a hydraulic system for operating the valve. The hydraulic system, a control panel and control of the sampling device are operated by an electric system located in the panel from which signals are sent via a combined lifting and electric conducting cable.