Abstract: A shifting tool includes a body having a longitudinal axis and a structure engaging member supported by the body. The structure engaging member is configured to engage and shift a structure within a tubular. A puncture device is supported by the body. The puncture device is configured to engage a barrier within a flowbore of the tubular in a direction of the longitudinal axis.

Abstract: A downhole flow control apparatus comprising: at least one tubular body locatable at a zone of a well, the tubular body having a longitudinal through bore and one or more transverse ports and a port covering device which, in use, is movable from a lower position in which the or each port is covered to an upper position in which the or each port is open; and at least one plugging device which is operable to travel downhole from the surface to locate within and seal the through bore of the tubular body, the plugging device including moving means to cause the port covering device to move from the lower position to the upper position thus allowing fluid communication between the through bore and the or each port.

Abstract: A shifting tool includes a body having a longitudinal axis; a structure engaging member supported by the body, the structure engaging member configured to engage and shift a structure within a tubular; and a puncture device supported by the body, the puncture device configured to engage a barrier within a flowbore of the tubular in a direction of the longitudinal axis.

Abstract: A downhole flow control apparatus comprising: at least one tubular body locatable at a zone of a well, the tubular body having a longitudinal through bore and one or more transverse ports and a port covering device which, in use, is movable from a lower position in which the or each port is covered to an upper position in which the or each port is open; and at least one plugging device which is operable to travel downhole from the surface to locate within and seal the through bore of the tubular body, the plugging device including moving means to cause the port covering device to move from the lower position to the upper position thus allowing fluid communication between the through bore and the or each port.

Abstract: A downhole flow control apparatus comprising: at least one tubular body (1) locatable at a zone of a well, the tubular body (1) having a longitudinal through bore and one or more transverse ports (5a, 5b) and a port covering device (3) which, in use, is movable from a lower position in which the or each port is covered to an upper position in which the or each port is open; and at least one plugging device (6) which is operable to travel downhole from the surface to locate within and seal the through bore of the tubular body, the plugging device including moving means (10) to cause the port covering device (3) to move from the lower position to the upper position thus allowing fluid communication between the through bore and the or each port (5a, 5b).

Abstract: A downhole flow control apparatus comprising: at least one tubular body (1) locatable at a zone of a well, the tubular body (1) having a longitudinal through bore and one or more transverse ports (5a, 5b) and a port covering device (3) which, in use, is movable from a lower position in which the or each port is covered to an upper position in which the or each port is open; and at least one plugging device (6) which is operable to travel downhole from the surface to locate within and seal the through bore of the tubular body, the plugging device including moving means (10) to cause the port covering device (3) to move from the lower position to the upper position thus allowing fluid communication between the through bore and the or each port (5a, 5b).

Abstract: A safety valve for use in well bore operations, for example, in cooperation with a progressive cavity pump or rodpump. One version of a safety valve (1) is designed for use with upper and lower conduits in the form of upper and lower pump rod strings (16, 18) located in wellbore production tubing (50). The safety valve comprises a housing (2) having a longitudinal bore (3) extending therethrough; a coupling member (14) for coupling the upper rod string to the lower rod string, the coupling member sealably mounted within the longitudinal bore; an annular flow passage (8) bypassing the coupling member; and a valve sleeve (23) located in the annular flow passage. In use, the valve sleeve is utilised to control flow of fluid through the flow passage bypassing the coupling member.

Abstract: There is disclosed a safety valve for use in well bore operations, for example, in cooperation with a progressive cavity pump or rodpump. In one embodiment of the invention, a safety valve (1) disclosed which is designed for use with upper and lower conduits in the form of upper and lower pump rod strings (16, 18) located in wellbore production tubing (50). The safety valve comprises a housing (2) having a longitudinal bore (3) extending therethrough; a coupling member (14) for coupling the upper rod string to the lower rod string, the coupling member sealably mounted within the longitudinal bore; an annular flow passage (8) bypassing the coupling member; and valve means comprising a valve sleeve (23) located in the annular flow passage. In use, the valve sleeve is utilised to control flow of fluid through the flow passage bypassing the coupling member.

Abstract: A downhole packer is provided for sealing an annulus between first tubing located within larger diameter second tubing. The packer comprises a mandrel for coupling to the first tubing, the mandrel having a wall defining a main through bore and a plurality of smaller diameter through bores for receiving control lines. A seal arrangement is located on the mandrel and is configurable, in a set configuration, to form a seal with the surrounding larger diameter second tubing. A slip arrangement is located on the mandrel and is configurable, in a set configuration, to engage the surrounding larger diameter second tubing.