kelly rotary table in stock

Welcome to Pickett Oilfield’s rotary tables web page. Our company has been in the oil & gas drilling equipment industry for over 38 years, supplying new and used rotary tables and rotary equipment to customers in practically every producing region in the world. We are here to serve all your drilling equipment needs – if you don’t see it on this site, just give us a call or email. We can get it, if you need it!

Pickett Oilfield, LLC offers prospective buyers and extensive selection of quality new and used oil & gas drilling equipment, including rotary tables to choose from at competitive prices. Browse our inventory of rotary tables and rotary table drilling components for sale at competitive rates.

A long square or hexagonal steel bar with a hole drilled through the middle for a fluid path. The kelly is used to transmit rotary motion from the rotary table or kelly bushing to the drillstring, while allowing the drillstring to be lowered or raised during rotation. The kelly goes through the kelly bushing, which is driven by the rotary table. The kelly bushing has an inside profile matching the kelly"s outside profile (either square or hexagonal), but with slightly larger dimensions so that the kelly can freely move up and down inside.

This is the brief explanation of a Kelly rotating system on the rig. Kelly rig is on an old style rigs and  nowadays it is mostly used on land operations. For offshore operation, a top drive system is used instead.

The upper end of the drill pipe is screwed onto the saver sub. The saver sub is used to protect and minimize wearr and tear on the threads at the bottom of the Kelly. The Kelly is about 40 ft in length with a square or hexagonal shape and it is hollow throughout in order to transport the drilling mud.  Kelly moves freely through a Kelly bushing even though the drill stem is rotated.

A Kelly cock valve is located at the top of a Kelly and it is a safety valve which can be closed to stop back pressure from coming back to damage other surface equipment.

A swivel attached to the hook does not rotate, but at the bottom part it supports the Kelly which is being rotated while drilling.  Drilling mud is pumped from a mud pump to a stand pipe manifold, Kelly hose and then to a gooseneck connection at a swivel.

A rotary table rotates a Kelly bushing and it simultaneously rotates a Kelly and a drill string and a drill bit. A rotary table has two main functions. The first one is to provide rotation to a drill stem and a bit and the second function is to hold slip in order to support the weight of a drill stem when it is not connected to a Kelly.

Generally, a rotary drive consists of  a chain and rotary-drive sprocket. A rotary-drive sprocket is a part of the draw-works. In other rig power systems, an independent electric motor or engine with a direct drive to a rotary table is utilized. For this case, the rotary is normally driven by a drive shaft instead of a chain and rotary-drive sprocket.

A master bushing severs its function as a rotary motion transmission from a rotary table to a Kelly. Additionally, it is a link between a slip and a rotary table.

A Kelly bushing (some people call “rotary Kelly bushing”) engages a master bushing via four pins and rollers inside a Kelly bushing to allow a Kelly to move up or down freely while it is rotated or in a static mode.

The NOV CUL & CB Casing Bushings are inserted directly into the rotary table and insure that the casing being run is perfectly aligned with the center of the hole. Model CU is a solid bushing and model CB is a split bushing. All of the bushings accept bowls of different sizes to accommodate a wide range of casing. Using CMS-XL or CP-S slips, since these bushings fit into the rotary table, the casing string can be easily rotated during cementing operations.

Kelly bushing is that elevated device positioned right on top of the rotary table and used to transmit torque from the rotary table to the kelly. The kelly bushing is designed to be the connection between the rotary table and the kelly. The kelly is a 4 or 6 sided steel pipe.

The purpose of the rotary table is to generate the rotary action (torque) and power necessary to rotate the drillstring and drill a well. The torque generated by the rotary table is useless if it is not transferred to the kelly (the drillstring is connected to the kelly).

Hence, through the kelly bushing the torque generated at the rotary table is transferred to the kelly. To achieve this connection, the inside profile of the kelly bushing matches the outer profile of the kelly so that the kelly fits or “sits” comfortably in the kelly bushing.

There are various designs for the kelly bushing including the split type, the pin-drive type and the square-drive type. Each of these designs has different ways in which they are connected and disconnected from the rotary table.

The internal diameter of the kelly bushing can be cut into the shape of a square (4-sided) or a hexagon (6-sided) depending on the outer shape of the kelly that will be used. The internals of a Kelly bushing is designed to resemble the outer shape of a Kelly just like the insides of a key lock is cut to exactly match the outer shape of the key.

The kelly bushing is not designed to hold tightly onto the Kelly; the kelly is still permitted to move up and down through the kelly bushing. This requirement is a must since drilling cannot progress if the kelly remains on a fixed spot. As the well is drilled deeper, the kelly also moves downward through the Kelly bushing.

The kelly bushing is sometimes used as a reference point from which depth measurements can be taken. All depths must be recorded with respect to a reference point; the kelly bushing (KB) is one of the depth references used in the oil and gas industry.

The top of the kelly bushing is normally used as the depth reference.For example, 7500ft KB means 7500ft below the kelly bushing or 7500ft measured from the top of the kelly bushing down to that point in the well.

In some other cases, depths could be recorded as 7500ft MDBKB meaning 7500ft measured depth below the kelly bushing. This is mostly used when the measured depth is different from the true vertical depth of the well, common with deviated and horizontal wells.

RMT6YB3T–The first rotary oil rig, with a man standing in the background holding the reins of a harnessed mule that is used to power the rig, Corsicana, Texas, 1894. Image courtesy American Petroleum Institute/US Department of Energy. ()

A rotary table is a mechanical device used in oil fields. It provides clockwise rotational force to the drilling rig and facilitates the process of drilling a borehole. The rotary tables are driven by large chains that resemble huge bicycle chains. They are equipped with a rotary lock that is used to prevent the rotary from turning in a particular direction or even stopping the circular motion. They are used in both onshore and offshore oil wells mainly to transfer the rotary motion to the Kelly drive system.

The outbreak of the COVID-19 pandemic has severely affected the global oilfield rotary table market.Nationwide lockdown imposed by several governments to contain the virus has caused most of the business activities to either slow down or even put to a halt. This has caused a significant decrease in demand for fuel across the globe, thereby affecting the oilfield rotary table market.

Attributed to travel restrictions on national and international transport, the demand for petrol and diesel decreased to a great extent along with the prices of crude oil. This has caused severe impacts on the oilfield rotary table market.

Rapid globalization and industrial development around the world resulted in a steep increase in demand for oil & gas in the market. As a result, the growing number of excavation and production activities of oil & gas companies has acted as a major driver for the growth of the oilfield rotary table market. Moreover, increasing upstream investments by the oil & gas companies and the development of modern drilling equipment add to the growing demand for oilfield rotary table in the market. For instance, Sekal AS, a major international company is offering real-time dynamic monitoring and integrated drilling solutions in the oil & gas industry. Such developments are expected to have positive impacts on the oil field rotate table market. However, the emergence of top drive technology as an alternative along with the fluctuating prices of crude oil might hamper the growth of the global oilfield rotary table market. On the contrary, the growing excavation activities especially in search for shale gas reserves is expected to drive the demand for oilfield rotary tables in the market.

The market in the North America region accounts for a significant share of the global oilfield rotary table market due to increasing investments and the growing number of exploration & production activities of oil & gas companies in the region. The market in the Middle East & Africa region is also expected to witness a lucrative growth due to the presence of high number of oil & gas companies in the region.

Key benefits of the report:This study presents the analytical depiction of the global oilfield rotary table market along with the current trends and future estimations to determine the imminent investment pockets.

The report presents information related to key drivers, restraints, and opportunities along with detailed analysis of the global oilfield rotary table market share.

580 GD Compressor, 5 X 6 Mud Pump, PTO, NO Deck Engine. Rig Was Rebuilt In 2010, New 23" Kelly, New Little Giant Swivel, 2000 Rotary Table, Transfer Case Rebuilt, New 100 Pulldown Chain & New Sprockets, Bowie Inj. Pump, Hyd. Oil Cooler, New Railing On Derrick For Swivel Drives, Mud Pit, 200" Of 2 More Info »

256S2 Leroi Compressor, 5 X 6 GD Mud Pump, PTO, NO Deck Engine. Tophead Drive, Retractable Table, Aux. Lift Line, Sandline, Three Part Main Line, (3) Hyd. Jacks, Weldco Beales Casing Hammer Package Available At Additional Cost. Mounted On 79 4-Axle CCC W/ 290 Cummins. Good Condition.

7 1/2 X 10 G/D Mud Pump, Waukesha Diesel Deck Engine. 32" Mast, 8" Retractable Table, 20" Opening In Table, 23" Kelly, Easy Set-Up Screw Jacks. Mounted On Single Axle Trailer. Good Condition.

5 X 6 Mud Pump, PTO, NO Deck Engine. 3 Speed Stationary Rotary Table, Water End On Pump Needs Gone Through, 23" Kelly, 200" Of Drill Pipe, Drawdown Not In Operation But Can Be Used, 2 Speed Rearend In Truck. Mounted On GMC, w/ V671 Detroit. Good Condition.

471 Detroit Deck Engine. 58" Derrick, 35" X 4" Kelly, Double Drum Drawworks Rebuilt In 2010, Drilling Platform & Side Walk Ways W/ Guard Rails, 7 1/2" Rotary Table Rebuilt In 2011, Air Clutches, Front & Rear Leveling Jacks, Derrick Lifting Cylinders Rebuilt In 2010, Rebuilt Driveline W/ New Clutch Pads In 2010, Deck Engine More Info »

256S2 Leroi Compressor, 5 X 6 GD Mud Pump, 318 Detroit Deck Engine. 10" Retractable Table, Rod Rack, 37" Derrick, (3) Hyd. Jacks, New Kelly Bar, Hydro-Frac Pump, 5 Speed Rotary Transmission, Cable Drawworks, 9 GPM Bean Water Injection Mud Pit, 500" Of 4 1/2" X 2 7/8" IF Drill Pipe, 20K LB. Front Axle, More Info »

Parco 131" X 550,000 Static Hook Load Mast, OIME SL-5 Drawworks W/ (2) 520 HP Cat Engines, Allison 606L Transmission, WPT 4-24 Water Brake, Parco 18.5" Split Level Substructure, 10X30" Doghouse, (2) Weatherford MP9 Triplex Mud Pumps W/ 398 Cat Engine, (2) 5X6 Centrifugal Chase Pumps, 2 Pit 900 Barrel Mud System, 27 1/2" Rotary More Info »

500/125 Compressor, 671 Detroit Deck Engine. 46" Mast, 33 1/2" X 4 1/2" Kelly Bar, 7 1/2" Stationary Table, Rod Box, Leveling Jacks, Work Platform. 5 Speed Transmission To Slow Down Drawworks. Mounted On 1978 Ford 900, w/ 534 Gas.

5 1/2 X 8 Mud Pump, PTO, NO Deck Engine. Range II Derrick, Double Drum, 8" Retractable Table, Centrifugal Charge Pump, Hyd. Rod Spinner, Hyd. Chain Pulldown, Air Clutches, Weight Indicator, Racking Board, 25 Ton Block, Service Winch, Cathead, (4) Hyd. Jacks, (2) New Front Jacks, Mud Pump Rebuilt, Gearboxes Rebuilt, Includes 3 6" Drill More Info »

350 Cummins Deck Engine. 31" Brakes, Jaw Clutches, Hydrostatic Rotary Table, Drawworks Rebuilt, Cathead, Set Of Tongs, No Derrick. Mounted On Trailer.

5 X 6 Mud Pump, PTO, NO Deck Engine. Retractable Rotary Table, Chain Pulldown, (3) Hyd. Jacks, Rod Rack, Manual Clutches, Mounted On 1977 Ford, w/ Diesel.

GD Compressor, 5 X 6 Mud Pump, PTO, NO Deck Engine. Manual Clutches, 7 1/2" Stationary Table, Rod Rack, Pulldown, (2) Hyd. Jacks, 200" Of 2 7/8" Drill Pipe, Mounted On 1991 Mack, w/ Mack Diesel. Good Condition.

5 X 6 Mud Pump, PTO, NO Deck Engine. (4) Hyd. Jacks, Hyd. Pulldown, Rebuilt 5 1/4" Rotary Table, Rebuilt Drawworks, Sandline, Rod Rack, Manual Clutches, 260" Of 20" Drill Pipe, Mud Pump Fluid End Just Rebuilt. Mounted On 1988 Chevrolet, w/ 3208 Cat. Good Condition.

53" Mast, No Mud Or Air On Board, 7 1/2" Retract Table, Hyd. Pulldown, Sandline, 4 1/4" X 23" Kelly, Rod Rack, (3) Hyd. Jacks. Tooling Available, Mounted On 1979 Kenworth, w/ 6V92 Detroit. Good Condition.

4 Cyl. Cummins Turbo Diesel Deck Engine. 46" Derrick, 7 1/2" Rotary Table, 42" X 3" Fluted Kelly, Air Clutches, Swivel Chain Pulldown, Sandline, King Gooseneck & Swivel, (2) 4 Line Failing 2500 Traveling Blocks, 4 Sheave Crown Block, Hyd. Leveling Jacks, 360 Gallon Fuel Tank, 4 Speed Rotary Table Trans., Drillers Skid & Controls. More Info »

500/250 Leroi Compressor, 5 X 6 Mud Pump. (3) Hydraulic Leveling Jacks, 5 1/4" Retractable Rotary Table, Double Drum Drawworks W/ Mechanical Clutches, Rod Rack, 23" x 3 3/8" Kelly, Hydraulic Pulldown, Little Giant Swivel, 200" Of Drill Pipe. Mounted On 1978 Ford, w/ Diesel. Good Condition.