Abstract: A well tubing system includes a well tubing extending from a wellhead and disposed in a wellbore, and multiple capillary tubes coupled to the wellhead and extending from the wellhead into an annulus formed between an outer surface of the well tubing and a wall of the wellbore. The multiple capillary tubes provide a sealing fluid to the annulus, and extend to a respective multiple depths in the wellbore, where the multiple depths are different from each other. The capillary tubes guide the sealing fluid from the wellhead into the annulus, and provide the sealing fluid to the annulus.

Abstract: A system for monitoring the erosion of internal components of a valve having a valve (200, 300, 400) which in turn comprising a body (44, 17, 24), a trim (46, 19, 26) and a seat (21, 28, 48) and at least an ultrasonic probe (22, 40, 29) able to transmit ultrasonic waves through the internal components and receive waves reflection through. In this system, the gaps between the internal components of the valve are closed and the distances between them are almost equal to zero so that the continuity between components is able to transfer the waves determining therefore the distance between the ultrasonic probe (22, 40, 29) and the internal component to be monitored.

Abstract: A hydrocarbon extraction system that includes an erosion control system. The erosion control system includes a housing defining a first inlet, a second inlet, and an outlet. The housing receives and directs a flow of a particulate laden fluid between the first inlet and the outlet. A conduit rests within the housing. The conduit changes a direction of the particulate laden fluid and reduces erosion of the housing. The conduit is inserted into the housing through the second inlet. The conduit defines a plurality of apertures between an exterior surface and an interior surface of the conduit. The apertures direct the fluid into a conduit cavity. The conduit guides the fluid entering the conduit cavity to the outlet. The erosion control system excludes a plug and/or a sleeve around or in the conduit.

Abstract: A blowout preventer transport and handling system for a blowout preventer on a well rig. The system includes a skid for a receipt of a blowout preventer. A pair of trolley beams parallel to the skid are moveable between a lowered storage position and a raised use position. A trolley hoist mechanism is provided on each of the trolley beams. At least one cylinder moves the pair of trolley beams between the lowered storage position and the raised use position.

Abstract: A well surface control system for use with various types of work strings such as, but not limited to, drill strings, coiled tubing, snubbing pipe, electric line, production tubing, and wireline. The system includes a main housing with a main bore extending from one end to the other. The main housing is equipped with a side port which communicates with the main bore between the two ends. The main housing is also equipped with two valves for controlling fluid and/or gas flows through the main bore and for severing a component of a work string running through the main bore. The first valve is positioned between the side port and one end of the main housing and the second valve is positioned between the side port and the other end of the main housing. Attached to each end of the main housing is a saver sub, with means for temporarily locking the saver subs to the main housing to prevent circular and longitudinal movement of the saver subs in relation to the main housing.

Abstract: An oil field system comprising a main body having a bore therethrough, the main body having a connection at one end of the bore for, in use, connecting the main body to an existing wellhead, tree or other oil field equipment, a transverse cavity through the bore, the cavity having at least one opening to the outside of the main body, a plurality of flow control devices for insertion, at different times, into the cavity in order to selectively control fluid flow through the bore, wherein the plurality of flow control devices includes a gate valve and drilling BOP rams.

Abstract: A well surface control system for use with various types of work strings such as, but not limited to, drill strings, coiled tubing, snubbing pipe, electric line, production tubing, and wireline. The system includes a main housing with a main bore extending from one end to the other. The main housing is equipped with a side port which communicates with the main bore between the two ends. The main housing is also equipped with two valves for controlling fluid and/or gas flows through the main bore and for severing a component of a work string running through the main bore. The first valve is positioned between the side port and one end of the main housing and the second valve is positioned between the side port and the other end of the main housing. Attached to each end of the main housing is a saver sub, with means for temporarily locking the saver subs to the main housing to prevent circular and longitudinal movement of the saver subs in relation to the main housing.

Abstract: A convertible rotary seal has a housing for receiving a polish rod. A mandrel is rotatably mounted in the seal housing and surrounds the polish rod. A wear sleeve surrounding the mandrel engages a primary seal. A secondary seal engages the mandrel and polish rod and rotates therewith but may be converted for use as a static seal if necessary. A locking mechanism selectively secures the mandrel in a stationary orientation with respect to the seal housing. Fluid that leaks past the primary seal will be detectible through an external orifice. If a leak in the primary seal is detected via the external port, then the mandrel may be secured in a stationary orientation with respect to the housing and the secondary seal may be reconfigured to operate as a stationary seal until such time as the rotary sealing unit can be overhauled.

Abstract: Disclosed herein is a coupling device for converting a below-ground potable water well installation to an above-ground installation, the device comprising a housing having a first opening which is dimensioned to receive an upper end of a below-ground well casing and a second opening which is dimensioned to receive a lower end of a well casing extension; gasket means located adjacent the first and second openings for sealing the respective connections between the housing, the below-ground well casing and the well casing extension, the gasket means further providing a first seating surface to seat the upper end of the well casing and a second seating surface to seat the lower end of the well casing extension; and a central region including a passage to receive a well line adaptor therebetween.

Abstract: Disclosed herein is a coupling device for converting a below-ground potable water well installation to an above-ground installation, the device comprising a housing having a first opening which is dimensioned to receive an upper end of a below-ground well casing and a second opening which is dimensioned to receive a lower end of a well casing extension; gasket means located adjacent the first and second openings for sealing the respective connections between the housing, the below-ground well casing and the well casing extension, the gasket means further providing a first seating surface to seat the upper end of the well casing and a second seating surface to seat the lower end of the well casing extension; and a central region including a passage to receive a well line adaptor there between.

Abstract: A lifting top drive sub sea staging cement head in which cement slurry flows from outside into its central bore, thru a rotating swivel connection. The cement head has a rotatably indexable reservoir cylinder with multiple cells which may be loaded with balls, and/or darts, and/or staging bombs. One first cell is kept open for circulation. The cylinder is rotatably aligned, at will to the flow path, so that the staging elements may be washed down the drill string. In addition, the cement head is hydraulically remotely controlled such that no operators protrude from the smooth body, yet the remote system may be manually over-ridden.

Abstract: There is disclosed a ball and plug dropping head which includes a housing having an inlet at its upper end and an outlet at its lower end, and passages extending downwardly within the housing at circumferentially spaced locations, each to receive a ball or plug. A lateral opening connects the inlet with each passage beneath a removable plug closing the upper end of each passage, and valves are mounted in the housing each to close the passage beneath the lateral opening and thus beneath a ball on plug in the passage.

Abstract: A wellhead isolation tool for use with a wellhead assembly from which a tubing string is suspended comprises a tubular mandrel which includes an axial passage that extends therethrough and lower end that is adapted to engage the tubing string, a pumping head which is connected over the wellhead assembly and which includes an internal chamber that is in fluid communication with the axial passage and a port that extends through the pumping head to the chamber, and an actuator which is connected over the pumping head for moving the mandrel axially through the pumping head and into engagement with the tubing string. When the mandrel is engaged with the tubing string, fluid may be communicated through the port, the chamber and the mandrel and into the tubing string.