QAR 1500 HP DRILLING RIG




  1. ADVANTAGES OF THE QAR DESIGN


  2. QAR VS. OTHER DESIGNS
    1. QAR vs. Cabot 1500 and Flex Rig Designs
    2. QAR vs. Box-on-Box Rig Designs
    3. QAR vs. Trailerized Rig Designs

  3. SPECIFICATIONS
    1. Mast
    2. Substructure
    3. Drawworks

I.  ADVANTAGES OF THE QUICK ASSEMBLY TYPE DESIGN



The Quick Assembly Rig (QAR) was developed to favorably compete with the best rigs available in the industry: the Cabot 1500, Flex Rigs, Sling Shots, and Box-on-Box type designs.

  1. The mast is transported as a single unit on its own dolly, together with the setback, V-Door ramp, and hook-block combination. The dead line anchor is mounted on the mast bottom section.


  2. The drawworks is also a single trailerized unit with its own power.


  3. The substructure is transported in only two (2) loads, all of which are skid mounted with typical oilfield loading ends.


  4. The mast, drawworks, and substructure are transported in only a total of four (4) loads, compared to 20 loads for Box-on-Box type designs. This substantially reduces assembly and transportation time/cost.


  5. The advantage of the QAR is illustrated in the simple on-site-rig-up procedure and comparisons that follow.


  6. The QAR is one of the best rig designs in the market today.


    7.

II.  QAR VS. OTHER RIG DESIGNS



  1. QAR VS CABOT 1500 AND FLEX RIG DESIGNS


    2. The Helmerich & Payne Propriatary "Flex Rig" and Cabot 1000-1500 Designs are two (2) of the best and most popular designs in existence today. We believe the QAR is superior to these designs for the following reasons:

    1. The Cabot 1500 and Flex Rigs have six (6) major loads:

      1. Telescoped mast on dolly
      2. Drawworks trailer
      3. Drawworks mud boat
      4. Main substructure
      5. Setback substructure
      6. V-door ramp and stair w/ two (2) mast ramps

      The QAR only has four (4) loads and does not need mast ramps (the V-door travels with the mast).


    2. The Cabot 1500 and Flex Rig designs position and telescope the mast on the drawworks side. The drawworks trailer cannot be rigged-up in position until the mast is scoped out, climbs the mast ramp to the the drill floor, pinned, raising cylinders installed, and the mast raised. This takes time.

      The QAR mast is erected form the setback side and has no delays necessary to rig-up the drawworks trailer (which is on the other side).


    3. The Cabot 1500 or Flex Rig mast, pins at drill floor level. The mast has to climb two (2) mast ramps to get there. With the mast extended in horizontal position , the truck driver steering the climbing process is about 170 ft. away fromt he drill floor and has to respond to hand signals for communication. It is not an easy process and there are safety issues of concern.

      The QAR does not have to climb mast ramps to the the drill floor. It pins near ground level.


    4. The Cabot/Flex Rigs use two (2) large multi-stage hydraulic cylinders about 16 in. in diameter to raise the mast. The substructure also uses multi-stage cylinders to telescope and elevate to operating position. These cylinders require good knowledge and procedures to follow on the part of the rig crew to maintain safety (proper hydraulic circulation, bleeding air, etc.). Forgetting some of these procedures (e.g. air bleeding) can cause serious problems.

      The QAR does not use hydraulic cylinders to raise the mast or the drill floor. The rig uses the common wire raising method.


    5. The Flex Rig is proprietary to Helmerich and Payne International Drilling Company and not available for sale to other drilling contractors. The Cabot 1000/ 1100/ 1200/ 1500 Designs are proprietary to National Oilwell and available for sale to the industry. However National Oilwell typically supplies new build complete rig packages.

      The QAR is supplied with a new mast and substructure. The Client has the option to select reconditioned equipment to complete the rig package. There will be a substantial cost savings of over 50% vs. an all-new rig package design.


  2. QAR VS BOX-ON-BOX RIG DESIGNS


    1. Box-on-Box type rigs are the longest to assemble at the drill site. These rigs require 20 truck loads to transport and about 250 pins and bolts to put together the many pieces. These 20 loads are as follows:


      2. MAST SUBSTRUCTURE
      1. Top Section with Crown
      2. Upper Mid Section
      3. Mid Section
      4. Lower Mid Section
      5. Bottom Section
      6. Mast A-Frame
      7. Racking Board
      8. Brace/Girts/Boom Kits
      9. Block-Hook, Equalizer, Mast Raising
        Lines, Misc.
      1. Lower Box, Driller's Side
      2. Lower Box, Off-Driller's Side
      3. Top Box, Driller's Side
      4. Top Box, Off-Driller's Side
      5. Setback
      6. Rotary Spreaders/Drawworks Spreaders/ Substructure Braces at Ground Level (note that each one has to be assembled piece by piece)
      7. Flooring Panels
      8. Drawworks
      9. Engine 1
      10. Engine 2
      11. Compound
      The hundreds of bolts and pins to install are usually all mixed together in a barrel that needs to be sorted on-site. Pins and bolts are lost and need to be replaced.

      The QAR has 4 loads, not 20.

    2. The Box-on-Box rig requires a large crane with a long boom to assemble on site. The on-floor mast has to either climb a ramp or be lifted to the floor. The on-floor drawworks also requires a crane to install. The two (2) engines and compound also require a large crane to be put together.


    3. The savings in time, trucking costs and other charges will enable the QAR to drill extra wells compared to other rig designs.




  3. QAR VS TRAILERIZED RIG DESIGNS


    4. Trailerized Rigs available in the 750 HP - 1500 HP market include IDECO-H44, IDECO 1000, Wilson 75, Cabot 900, Skytop TR 800, and several others. These rigs have similar features and compare to the QAR as follows:

    1. Trailerized Rigs have less allowable hook loads:


      1. IDECO H-1000: 358,000 lbs.
      2. Wilson 75: 368,000 lbs.
      3. Skytop TR 800: 410,000 lbs.

        The QAR 1500 HP has a 715,000 lbs. Hook Load.


    2. Trailerized Rigs have doubles mast whereas the QAR has trebles mast. There are 1/3 less connections to make.


    3. Trailerized Rigs require guylines, load lines, and ground anchors. The QAR requires none of these.


    4. Trailer Rig Substructures are 15-16 ft. high whereas the QAR substructure is 22 ft. high. Option for a taller substructure is also available.


    5. Trailer Rigs use hydraulic cylinders to raise and extend/telescope the mast (sometimes wireline scoping is used using a hydraulic winch).

      The QAR does not use hydraulic cylinders or hydraulic winches.


    6. Trailer Rigs weigh up to and often exceed 120,000 lbs. and cannot be transported without taking the mast off in many states and areas.

      The QAR Design recognizes this and transports the mast on its own dolly, not with the drawworks trailer.

III.  SPECIFICATIONS



  1. MAST


    1. One (1) Mast 136 ft. high with an API static hook load of 715,000 lbs. Setback capacity is 300,000 lbs. Maximum wind velocity is 100 mph without setback and 75 mph with full setback.


      1. Mast will accommodate a 260 Ton Top Drive


      2. Racking capacity is 12,000 ft. of 4-1/2" drill pipe. Mast designed for treble joint stands (93').


      3. Mast is complete with racking board, two (2) tong counter weight brackets, one (1) catline sheave unit, and two (2) leveling jacks with hand pump including hose and connections.


      4. Mast includes crown block with six (6) sheaves and one (1) fast line sheave. All sheaves furnished with two-row tapered roller bearings and grooved for 1-1/8" diameter wireline and mounted on crown frame.


      5. The mast is vertically free standing. No load lines, no guylines, no guyline anchors.


      6. There are no hydraulic cylinders necessary for mast raising or mast telescoping.


      7. All fabricated material shall be sandblasted, primed, and top coated with enamel, color to be specified by customer. Mast is to be provided new.


    2. One (1) Mast Boom Kit on the off-driller's side


    3. One (1) Set of sling lines to raise mast.


    4. One (1) Yoke for mast raising


    5. One (1) Mast Trailer Dolly with three (3) axle suspension. Tires are Dual type 11.00 x 22.50



  2. SUBSTRUCTURE


    1. One (1) New Self-Elevating Substructure with 22 ft. floor height, 715,000 lb. rotary (casing) load capacity simultaneous with a setback load of 300,000 lbs.
      (Combined capacity of 1,015,000 lbs.).

      1. The Substructure includes A-Frame structures, rotary table beams, self-elevating setback, folding with decks, flooring, handrails and V-door ramp.


      2. There are no hydraulic cylinders necessary for Substructure extending to 22 ft.


    2. One (1) BOP Handling System including a BOP cart that can roll from anywhere on the mast mud boat all the way to the well center line. Includes rails and four (4) point lift under rotary table with chain hoists.



  3. DRAWWORKS


    1. One (1) Skid Mounted Electric Drawworks, 1500 HP, 1-1/4" dia. lebus grooving.


    2. One (1) 27-1/2" Rotary Table, with independent rotary drive.