Abstract: A pressure sensing unit has a pressure responsive member, a pressure sensor, and a hydraulic connector hydraulically connecting the pressure responsive member with the pressure sensor to produce an indication of sensed pressure. The hydraulic connector includes a tubular member and a longitudinal insert in the tubular member with hydraulic fluid in the tubular member between the insert and the member. The tubular member, the insert and the hydraulic fluid and the dimensions of the tubular member and the insert are such that the hydraulic fluid transmitted to the pressure sensor is substantially independent of temperature changes.

Abstract: A first passageway (17) provides a first fluid flow path, in a well between a first zone (9) and a, common region (26). A second passageway (23), outside the first passageway (17), provides a second fluid flow path; between the second zone (10) and the common region (26). The first passageway (17) is provided with a first flow controller (25), for controlling the flow of fluid between the first zone (9) and the common region (26). The second passageway (23) is provided with a second flow controller (28), for controlling the flow of fluid between the second zone (10) and the common region (26).

Abstract: A flow control device comprises an outer sleeve having an outer sleeve wall and at least one aperture through the outer sleeve wall; a inner sleeve having an inner sleeve wall and at least one aperture through the inner sleeve wall; and means for providing relative sliding movement of the sleeves between “open” positions allowing variable flow of fluid through the apertures of the sleeves and a “closed” position, so that relative movement of the sleeves produces available amount of opening through which fluid can flows. The apertures are arranged so that the change in the coefficient of velocity (CV) of fluid flowing through the apertures caused by a change in the relative displacement of the sleeves is substantially proportional to said change in relative displacement.

Abstract: The new ideal is the transfusion of natural blood, artificial blood plasma or artificial blood plasma mixed with natural blood, while draining natural blood for therapy of poison, snake bite, leukemia, aged persons, other cancers, allergies and other undiscovered uses. Some concerns in such blood therapy, is the blood be live, well warmed and well oxygenated, possibly with a heart lung machine. Also, that blood pressure is carefully monitored. If artificial blood plasma is substituted for whole blood, the concern would be careful monitoring for internal and external bleeding as artificial blood plasma does not clot. These therapies are not warranted to improve health. These are untested medical therapies and the inventor and Therapy Patent Corporation accepts no risk or liability for loss of health or death that may occur do to experimental work that may occur with these therapies. Perhaps testing and experimentation on animals should be considered before testing and experimentation on humans is considered.

Abstract: A pressure sensing unit has a pressure responsive member, a pressure sensor, and a hydraulic connector hydraulically connecting the pressure responsive member with the pressure sensor to produce an indication of sensed pressure. The hydraulic connector includes a tubular member and a longitudinal insert in the tubular member with hydraulic fluid in the tubular member between the insert and the member. The tubular member, the insert and the hydraulic fluid and the dimensions of the tubular member and the insert are such that the hydraulic fluid transmitted to the pressure sensor is substantially independent of temperature changes.

Abstract: Apparatus for use in controlling the flow of fluid between first and second zones (9 and 10) and a common region (26) comprises: a first passageway (17) for providing a first fluid flow path, between the first zone (9) and the common region (26), in use of the apparatus; and a second passageway (23), outside the first passageway (17), for providing a second fluid flow path, between the second zone (10) and the common region (26), in use of the apparatus. The first passageway (17) is provided with first flow control means (25), for controlling the flow of fluid between the first zone (9) and the common region (26), and the second passageway (23) is provided with second flow control means (28), for controlling the flow of fluid between the second zone (10) and the common region (26).

Abstract: A flow control device comprises an outer sleeve having an outer sleeve wall and at least one aperture through the outer sleeve wall; a inner sleeve having an inner sleeve wall and at least one aperture through the inner sleeve wall; and means for providing relative sliding movement of the sleeves between “open” positions allowing variable flow of fluid through the apertures of the sleeves and a “closed” position, so that relative movement of the sleeves produces available amount of opening through which fluid can flows. The apertures are arranged so that the change in the coefficient of velocity (CV) of fluid flowing through the apertures caused by a change in the relative displacement of the sleeves is substantially proportional to said change in relative displacement.

Abstract: An underwater hydrocarbon production system comprises power supply means (1,3,4) at or for use at a remotely located station (2) for providing DC; electrical means (6) at or for location underwater for using DC to provide power for an underwater device; and transmission cabling (5) for transmitting DC from the power supply means to the electrical means.

Abstract: Packers are expandable sealing devices used to seal off zones in a well. Packers are expanded to seal the bore of the well by means of expansion fluid supplied via individual pipelines. However, packers near the top of the well have to accommodate all of the pipelines for packers below. The invention provides a packer system comprising a plurality of packers (22-28) and fluid delivery means arranged to supply fluid to the packers, to expand them in use. The fluid delivery means includes a common fluid pipeline (36) for the packers. Thus, only one expansion fluid pipeline has to pass through the upper packers (22, 23), irrespective of the overall number of packers in the system.

Abstract: A latching mechanism for a sub-sea control module is constructed with energy storing means such that a latch is cooked into an unlatched condition by the action of lifting the sub-sea control module to store energy in the energy storing means and is moved into a latched condition by the action of lowering the sub-sea control module into abutment with the mounting base.