Patent application number | Description | Published |
20090321066 | Packer Insert for Sealing on Multiple Items Used in a Wellbore - A packer insert for sealing multiple items used in a wellbore includes an elastomeric member having one or more channels configured to seal on the multiple items when compressed by a packing unit, wherein the elastomeric member is made of a material selected from rubber, an elastomer, and a composite material, and wherein the packer insert is not affixed to a pressure control apparatus having the packing unit disposed therein. The packer insert is axially fixed to at least one of the multiple items. | 12-31-2009 |
20100155080 | BIDIRECTIONAL RAM BOP AND METHOD - A ram blowout preventer for sealing a well, the ram blowout preventer including a body having a cavity with a recess; a ram block configured to move inside the cavity; a top seat disposed in the recess and configured to seal the well when in contact with the ram block; a movable lock ring extending inside a groove of the body and a corresponding groove of the top seat and configured to move inside the groove of the body, along a direction substantially parallel to the well; a first seal extending inside a groove of the top seat and configured to contact the body and the top seat; and a second seal extending inside a groove of the ram block and configured to contact the ram block and the top seat. A width of the groove of the body is larger than a width of the lock ring by a predetermined value, which is larger than normal tolerances, and a distance from a centerline of the well to the first seal is larger than a distance from the centerline of the well to the second seal. | 06-24-2010 |
20100155628 | Deformation Resistant Opening Chamber Head and Method - An annular blowout preventer device includes a body having a first cavity extending from a first end to a second end, the first cavity being configured to accommodate a drill line; a static head removably connected to the first end of the body and having a second cavity that is aligned with the first cavity of the body to accommodate the drill line; a piston disposed inside the first and second cavities to define an opening chamber and a closing chamber together with the static head and the body, the piston being configured to move inside the first and second cavities to squeeze a packer for sealing the first cavity from the second cavity; and an opening chamber head disposed in the opening chamber next to the static head, the body, and the piston, the opening chamber head being configured to protect a hydraulic fluid in the opening chamber from external contamination. The opening chamber head has a body having a circular shape with an inside hole, the body having a cross section along a radial direction having at least three parts, a body part having a rectangular shape, a first rib extending from a longest side of the body part, the first rib overlaying a median line of the body part, wherein the median line is substantially perpendicular to the longest side of the body part, and a second rib extending from the longest side of the body part, on the same side as the first rib, the second rib being closer to a shortest side of the body part than to the median. | 06-24-2010 |
20120318493 | Pipe Guide Arms for Blind Shear Rams - A pipe shear ram assembly has a housing having a bore extending vertically therethrough for the passage of a pipe string. Ram blocks have blades positioned such that one slides over the other when the first and second ram blocks are moved toward each other to shear a well pipe. A pair of guide arms extend from one of the rams. The guide arms have tips protruding a greater distance than the blade. Each of the guide arms has an inboard wedge surface beginning at the tip and extending along a line that intersects the longitudinal axis for guiding the pipe string toward a bore axis of the bore in the event the first and second ram blocks are moved to the closed position. | 12-20-2012 |
20130168075 | SHEAR BLADE AND METHOD OF ATTACHMENT TO SHEAR RAMS - A shear blade attached to a ram block. At least one bolt passage is formed at an angle at the top of the ram block. A bolt passage is formed in the shear blade that corresponds with the bolt passage on the tam block. A bolt introduced into the bolt passage of the ram block and also the bolt passage in the shear blade attaches the shear blade to the ram block. By using this technique for attaching the shear blade to the ram block, surface area of a front face of the shear blade is not further reduced. Therefore, the strength of the shear blade is increased. | 07-04-2013 |
20130206422 | Gas Handler, Riser Assembly, and Method - Method, riser assembly and gas handler for diverting gas from a riser, The riser assembly includes a riser having a first end and a second end and a conduit extending from the first end to the second end; a gas handler connected to the riser and provided between the first end and the second end, the gas handler having an external casing; plural pipes attached to an outside of the riser such that at least one pipe of the plural pipes enters through the external casing; and a gas vent pipe configured to start at the gas handler and extend towards the second end of the riser and the gas vent pipe is further configured to divert a gas from the gas handler through the outside of the riser. | 08-15-2013 |
20140183381 | REINFORCED VARIABLE RAM PACKER USING FABRIC - A variable ram assembly for use in a blowout preventer (BOP) stack includes a packer element. The packer element includes an elastomeric body having a contact surface configured with a curved recess for sealing engaging a tubular. Fibers are included in the body adjacent the contact surface that exert a restraining force to prevent extrusion of the elastomeric body when it is forced against the tubular. The fibers are integrally formed in the body and may be woven into a fabric, which is disposed into a packer element mold along with uncured elastomer before forming the body. The fabric can be coated with an elastomer to bond with the body during the forming process. | 07-03-2014 |
20140183382 | DUAL COMPOUND VARIABLE RAM PACKER - A variable ram assembly for use in a blowout preventer (BOP) stack includes a packer element. The packer element includes an elastomeric body having a contact surface configured with a curved recess for sealing engaging a tubular. At least a portion of the body adjacent the contact surface is reinforced to define a reinforced area. The reinforced area exerts a restraining force to prevent extrusion of the elastomeric body when it is forced against the tubular. The reinforced area is integrally formed with the body using a molding process. | 07-03-2014 |