The connector body attaches to the bowl for a rotating head assembly. The connector body welded to the bowl secures the conductor pipe to the bowl. An inner aperture of the connector body accepts the bowl and the conductor pipe. Fasteners insert into the connector body to secure the conductor pipe within the connector body. An attachment shoulder that extends inward from the outer wall narrows the inner aperture. The bowl rests on top of the attachment shoulder. The bowl inserts vertically downward into an upper opening of the connector body to the attachment shoulder. The conductor pipe inserts into a lower opening of the connector body. The fasteners insert radially into the connector body to secure the conductor pipe within the connector body. The attachment shoulder limits movement of the bowl and the conductor pipe within the inner aperture of the connector body.

The modular bowl system provides a detachable bowl top and a modular bottom. The bowl top detaches to allow for easy repair of the bowl system should the bowl top become damaged. The detachable modular bottom securing to the bowl body for attaching the bowl body to the annular. The modular bottom provides a fixed attachment or a rotatable attachment of the bowl body with the annular. The modular bottom provides different sized bottom flanges for attachment to different sized annulars. The bowl body rotates for positioning of the bowl and the outlets and the inlet of the bowl for attachment to the flow line.

Downhole hanger systems are described. The downhole hanger systems include a first structure having an outer surface, a second structure having an inner surface, wherein the first structure is disposed within the second structure, and at least one rib set is arranged on the outer surface of the first structure and configured to be engageable with the inner surface of the second structure. The at least one rib set includes a first rib having a first rib height and a second rib having a second rib height that is less than the first rib height.

A configurable coupling assembly includes a body having a central bore and multiple receptacles. The central bore is configured to facilitate flow of fluid through the body, the receptacles are positioned radially outward from the central bore, the receptacles are substantially the same as one another, the receptacles are configured to receive respective couplers, and the respective couplers include multiple different types of couplers.

A tubing hanger assembly includes a body having an annular outer surface, a lockdown feature which is located on the body, a load nut which is threadedly connected to the body and has a downward facing load shoulder, and a piston assembly for adjusting a vertical distance between the load shoulder and the lockdown feature. The piston assembly includes an elongated cylinder which is positioned circumferentially around the body axially adjacent the load nut. The cylinder has a first cylinder end which is connected to the body and an open second cylinder end. An elongated piston is slidably received in the cylinder. The piston has a first piston end which is oriented toward the first cylinder end and a second piston end which is configured to extend through the second cylinder end and engage the load nut such that extension of the piston causes the load nut to rotate relative to the body. A seal is positioned between the piston and the cylinder to thereby define a piston chamber between the first cylinder end and the first piston end which is connectable to a source of fluid pressure. In operation of the piston assembly, the piston rotates the load nut to thereby move the load nut axially relative to the body so that the axial distance between the load shoulder and the lockdown feature can be adjusted.

A casing rotation system permits rotation of a casing string through a telescoping ring that selectively engages a casing hanger. When the telescoping ring is in a first axial position, it engages the casing hanger such that rotational force is transmitted from a running tool to the casing string. When the telescoping ring moves to a second axial position, it disengages the casing hanger such that rotational force is no longer transmitted to the casing string. The casing rotation system may include an inward-biased locking ring disposed about the casing hanger and optionally a bearing surface that reduces friction on the hangar.

A configurable coupling assembly includes a body having a central bore and multiple receptacles. The central bore is configured to facilitate flow of fluid through the body, the receptacles are positioned radially outward from the central bore, the receptacles are substantially the same as one another, the receptacles are configured to receive respective couplers, and the respective couplers include multiple different types of couplers.

A device and method for collecting sample fluids from an underground source which includes sample wells terminating in a corrugated conduit and sieve. The sampling regions for each sample well is separated by a grout or expanding seal barrier. Negative pressure is optionally applied to extract fluids from the underground matrix for sampling. The device can also be used for remediating an environmental contaminant from soil or aquifers. Upon identification of at least one environmental contaminant, a remediation composition is injected into the soil or aquifer using the sampling wells of the device. The remediation fluids can be directed to specific locations by selectively utilizing one or more sampling wells to inject the remediation fluid.

The swivel device attaches to a bowl or is implemented as a component of the bowl. The swivel device enables adjustment of the bowl to align the outlet with the flowline. A flange of the swivel device includes multiple fastener apertures for securing the flange to the stack. The swivel device secures the bowl to the stack while allowing rotation of the bowl. Rotation of the bowl adjusts the positioning of the outlet to align the outlet with the flowline for connecting the outlet to the flowline.

A tubing hanger assembly includes a body, a lockdown feature which is located on the body, a load nut which is threadedly connected to the body and which includes a downward facing load shoulder, and a torsion spring member which includes a first end that is connected to the tubing hanger and a second end that is connected to the load nut. In operation, the torsion spring member rotates the load nut to thereby move the load nut axially relative to the body. In this manner, the axial distance between the load shoulder and the lockdown feature is adjustable.