Resources Contact Us Home
Drilling rig apparatus and downhole tool assembly system and method

Image Number 5 for United States Patent #6973979.

A drilling rig is provided which is adapted to selectively drill using coiled tubing and jointed-pipe. The rig includes a base, a mast, a top drive slidably mounted to said mast for performing jointed-pipe operations, and a tubing injector for performing coiled tubing operations, mounted on said mast for selective movement from a first position in which the injector is in line with the mast and a second position in which the injector is out of line with the mast to permit jointed-pipe operations by the top drive. The rig is uniquely suited to easily and quickly assemble bottom hole assemblies (BHA's), and to connect such BHA's to coiled tubing.

  Recently Added Patents
Biological function effecting viral vectors and chimeric cells useful as packaging cell lines and target cells
Membrane electrode assembly with enhanced hydrophobicity and manufacturing method thereof
Passive bird-strike avoidance systems and methods
Plug housing
Dialkyl ether delivery agents
Maximum-likelihood MIMO demodulation for frequency-selective channels
Populating online forums
  Randomly Featured Patents
Phase-change memory device, phase-change channel transistor and memory cell array
Method of forming a membrane, especially a latex or polymer membrane, including multiple discrete layers
Adsorption columns for use in radioimmunoassays
Circuitry to monitor and control source of radiant energy in smoke detector
Disk drive interface combining a magneto-resistive read and inductive write circuits
Reflective film
Immunostimulant bacterial membrane fractions in cancer treatment
Method for manufacturing a discharge lamp envelope having multiple constrictions
Angular initialization method for orientating a cutting edge portion in a cutting plotter
Method for reducing coronary artery reactivity