Coiled tubing drilling rig

• US 7,600,585 B2
• Filed: 05/18/2006
• Issued: 10/13/2009
• Est. Priority Date: 05/19/2005
• Status: Expired due to Fees

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Patton, Bartley J., Rouse, Matthew D.
• Primary Examiner(s): BOMAR, THOMAS S
• Application Number:
  US11/419,100
• Publication Number:
  US 20060260844A1
• Time in Patent Office: 1,244 Days
• Field of Search: 166/384, 166/77.1, 166/77.2, 175/57, 175/162, 175/203
• US Class Current: 175/57
• CPC Class Codes: E21B 15/04 specially adapted for directional drilling, e.g. slant hole rigs
• CPC Class Codes: E21B 19/22 Handling reeled pipe or rod units, e.g. flexible drilling pipes lifting or hauling appliances using two or more cooperating endless chains B66D3/003
• CPC Class Codes: E21B 7/027 Drills for drilling shallow holes, e.g. for taking soil samples or for drilling postholes

Abstract

The present invention provides a rig capable of both coiled tubing and conventional drilling. The rig comprises a mast unit having a drilling mast and a catwalk. The mast unit is adapted for rotary drilling and casing operations. The rig further comprises a drill floor unit adapted to house a drilling cabin and hold a drilling BOP stack while in transport. The rig additionally comprises a coiled tubing unit that is controllable from the drilling cabin.

Claims

1. A rig assembly capable of both coiled tubing and conventional drilling, comprising:

a mast unit having a drilling mast and a catwalk, the mast unit adapted for rotary drilling and casing operations;

a drill floor unit adapted to house a drilling cabin and further adapted to hold a drilling BOP stack in transport; and

a coiled tubing unit having a coiled tubing reel and an injector, the coiled tubing unit controllable from the drilling cabin,

wherein each of the units are individually transportable to distinct locations adjacent the other units and a well site for use in a drilling operation.

2. The rig of claim 1, wherein each of the units of the rig are within DOT road legal dimensional and weight limits.

3. A method of performing drilling and casing operations at a well site with a drill floor unit, a mast unit, and a coiled tubing unit, wherein each of the units are individually transportable to distinct locations at the well site, the method comprising:

locating the drill floor unit at a position at the well site;

using the drill floor unit to center the drill floor over the well and raise the drill floor to operational height;

locating the mast unit at the well site adjacent the drill floor unit;

using the mast unit to raise the mast and a v-door ramp to meet the drill floor;

locating the coiled tubing unit at the wellsite adjacent the drill floor unit and the mast unit; and

using the coiled tubing unit to raise and scope a injector to meet the drill floor and align the injector over the well center, the coiled tubing unit further comprising a coiled tubing reel.

4. The method of claim 3, wherein each of the units is within DOT road legal dimensional and weight limits.

5. The method of claim 3, further comprising performing at least one of a drilling operation and a casing operation with the units.