Abstract: A completion system and method adapted for use in wells having long lateral boreholes includes a mast assembly, a pipe handling mechanism, a pipe arm, a pipe tub, a pump/pit combination skid, a rig carrier, and a control system. The control system can be used to automate operations of the completion system to facilitate rapid and safe make-up and breaking of tubular connections.

Abstract: A method and apparatus for aligning a wellhead or BOP stack with a mast assembly comprising a sensor which provides an initial alignment between a mast and a wellhead or BOP stack. A mast assembly is transported to a well site by a rig carrier and positions the mast assembly adjacent a wellhead, or BOP stack. The mast assembly is raised to an upright position whereby a rear portion of the mast extends over the wellhead. In one embodiment, at least one sensor is mounted to a top drive and/or crown located within the mast assembly. The top drive has a predetermined path of movement and the sensor aligns itself with the wellhead. In another embodiment, at least one sensor is mounted to the wellhead and aligns itself with a laser alignment target fastened to a crown and/or top drive of the mast. In yet another embodiment, at least one sensor is located on a lower portion of the mast assembly to align the mast with the wellhead.

Abstract: A method for deploying a mobile rig system to a well site includes transporting a control van to the well site. A rig carrier is utilized to transport the mast assembly and position the mast adjacent a wellhead. A skid mounted pipe moving member is transported to the well site and positioned on an opposite end of the wellhead from the mast assembly. The skid is interconnected to the rig carrier for maintaining a fixed distance between the mast assembly and the pipe moving member. A carrier support member is fastened at the interconnection point and extends outward to stabilize the mast assembly. Hydraulic actuators are utilized to level the mast assembly with a ground surface.

Abstract: A rig interconnection support and method for providing relatively precise and constant positioning between a rig carrier drilling mast assembly and a skid such as a skid mounted pipe arm for manufacturing the same. Rig interconnection supports, in one embodiment, utilize a pair of interconnectors positioned on opposite sides of well that align a rig carrier with the skid mounted pipe arm or other skid at a lower end.

Abstract: A completion system and method adapted for use in wells having long lateral boreholes includes a mast assembly, a pipe handling mechanism, a pipe arm, a pipe tub, a pump/pit combination skid, a rig carrier, and a control system. The mast assembly can extend in a generally vertical direction, e.g., perpendicular to the rig carrier and/or the earth's surface, such that the rig can be placed directly adjacent to a wellbore, and the top drive or a similar drive system can be engaged with and move along the mast while remaining above the wellbore. The top drive can be engaged with a support fixture that resists torque and rotation during operation. The support fixture can in turn be engaged with the mast to transfer torque forces to the mast while being vertically movable along the mast to enable positioning of the top drive.

Abstract: A completion system and method adapted for use in wells having long lateral boreholes includes a mast assembly, a pipe handling mechanism, a pipe arm, a pipe tub, a pump/pit combination skid, a rig carrier, and a control system. The mast assembly can extend in a generally vertical direction, e.g., perpendicular to the rig carrier and/or the earth's surface, such that the rig can be placed directly adjacent to a wellbore, and the top drive or a similar drive system can be engaged with and move along the mast while remaining above the wellbore.

Abstract: A mast assembly for a transportable rig which accommodates the height of wellhead equipment such as BOP and/or valve stacks and permits orientation of a top drive rotor in the mast directly over the wellhead as the top drive moves up and down in the mast. In one embodiment, the mast contains a base portion that supports a moveable portion of the mast assembly. In one embodiment, angularly rearwardly oriented supports are utilized to provide an open space to accommodate the height of the wellhead equipment between upright rails on which the top drive moves so that the top drive rotor can be aligned with the bore of the wellhead equipment.

Abstract: A method and apparatus for sampling microorganisms using fluid pressure, vacuum or a combination thereof to create fluid flow that collects biological and chemical material on a filter element. The filter element is secured in a cartridge replaceably coupled to a hand-held sample collection device that provides a fluid drain downstream of the filter element. The cartridge allows a fluid to pass through the filter element in a manner that prevents cross-contamination of subsequent samples. The sample makes contact with only the filter cartridge before the fluid is drained. Accordingly, the source of the fluid is not contaminated because it remains at a higher pressure than either the sample or the fluid drain during operation. Subsequent filter elements avoid contamination by biological or chemical material from a previous sample.