Tubular handling system
A system for facilitating the connection of a first tubular to a second tubular used in the oil and gas exploration and extraction industries includes a tubular handling device having a body having a profile shaped to accept a first tubular into a throat area and opposing scissor plates with overlapping tips. The system further includes a tubular engagement apparatus to engage and raise a tubular to a vertical position, and a spider apparatus including a plurality of slip assemblies. The slip assemblies include a slip back with an inclined load bearing surface, and a slip with a load bearing surface in sliding abutment with the inclined load bearing surface of the slip back.
1. A system for facilitating the connection of a first tubular to a second tubular used in the oil and gas exploration and extraction industries, the system comprising:
a tubular handling device comprising:
a body having a profile shaped to accept a first tubular into a throat area; and
opposing scissor plates with overlapping tips, whereby each scissor plate rotates about a fixed axis and is actuated to open and close around the first tubular;
a tubular engagement apparatus comprising:
a first member comprising a plurality of indentations disposed in a surface of the first member, each indentation comprising an inclined surface relative to a longitudinal axis of the first member;
a second member concentrically disposed relative to the first member, the second member comprising a plurality of openings; and
a plurality of non-spherical rolling supports, each support disposed within an indentation of the first member, and each rolling support corresponding to an opening in the second member, wherein movement of the second member relative to the first member urges the rolling supports along the inclined surfaces of indentations of the first member;
wherein the tubular handling device and the tubular engagement apparatus are operably connected so that the tubular handling device engages and retrieves the first tubular from a V-door to raise the first tubular to a vertical position, and wherein once in the vertical position, the tubular engagement apparatus engages an interior surface or an exterior surface of the first tubular; and
a spider apparatus comprising a plurality of slip assemblies evenly distributed about a central axis, wherein each slip assembly comprises a slip back with an inclined load bearing surface, a slip with a load bearing surface in sliding abutment with the inclined load bearing surface of the slip back, one or more die inserts with gripping surfaces, and a hydraulic or pneumatic cylinder;
wherein the slips and slip backs have cavities that together form a cylindrical cavity in the slip assembly between the slips and slip backs and the hydraulic or pneumatic cylinders are mounted in the cylindrical cavity to be in axial alignment with the movement of the slip as the slips travel up or down the inclined surfaces of the slip backs.
2. The system of claim 1 , wherein the tubular engagement apparatus further comprises rolling supports having a curved profile outermost surface.
3. The system of claim 1 , wherein the tubular engagement apparatus non-spherical rolling supports are configured to engage an interior surface or an exterior surface of the first tubular.
4. The system of claim 1 , wherein the tubular handling device further comprises:
a die block secured to each die retainer, wherein each die block is configured to be readily replaced to accommodate a range of tubular outside diameters or profiles.
5. The system of claim 1 , further comprising one or more link arms attached to the tubular handling device and configured to be manipulated to pivot via cylinders.
6. The system of claim 5 , further comprising one or more shock dampening cylinders connected between the tubular handling device and the one or more link arms, wherein the shock dampening cylinders are configured to maintain the tubular handling device in a substantially perpendicular position relative to the link arms.
7. The system of claim 1 , wherein the spider apparatus supports a second tubular in a substantially vertical position.
8. The system of claim 7 , wherein the first tubular manipulated by the tubular engagement apparatus is aligned with the second tubular supported by the spider apparatus, and the first tubular and the second tubular are connected.