rotary kelly bushing pricelist

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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!

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The Kelly Drive Bushing acts as an adapter that serves to connect the rotary table to the Kelly. The Kelly bushing has an inside diameter profile that matches that of the Kelly, usually square or hexagonal. It is connected to the rotary table by four large steel pins that fit into mating holes in the rotary table. The rotary motion from the rotary table is transmitted to the bushing through the pins, and then to the kelly itself through the square or hexagonal flat surfaces between the Kelly and the Kelly drive bushing. The Kelly then turns the entire drillstring because it is screwed into the top of the drillstring itself.

Kelly Bushing Height (KB): The height of the drilling floor above the ground level. Many wellbore depth measurements are taken from the Kelly Bushing. The Kelly bushing elevation is calculated by adding the ground level to the Kelly bushing height.

1. n. [Drilling] An adapter that serves to connect the rotary table to the kelly. The kelly bushing has an inside diameter profile that matches that of the kelly, usually square or hexagonal. It is connected to the rotary table by four large steel pins that fit into mating holes in the 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. This video demonstrates how to make a connection via a Kelly system.

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.

1. n. [Drilling] An adapter that serves to connect the rotary table to the kelly. The kelly bushing has an inside diameter profile that matches that of the kelly, usually square or hexagonal. It is connected to the rotary table by four large steel pins that fit into mating holes in the rotary table.

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.

1. adj. [Drilling] Referring to the condition that occurs when the kelly is all the way down, so drilling progress cannot continue. A connection must be made, which has the effect of raising the kelly up by the length of the new joint of drillpipe added, so drilling can resume.

This means that Top Drives can drill about 90 feet before making a connection, whereas with a Kelly System, you will make a connection at about 30 feet deep. Another difference between a Kelly and a Top Drive is that a Top Drive System allows rotation and circulation while back reaming out of a hole.

Kelly drive system is capable to drill with one single drill pipe. On other hand TDS is capable to drill with drill pipe stand. One drill pipe stand is made of three drill pipe joints together.

Kelly bars operate by transferring the torque and crowd force from a rotary drive tool to the drilling tool. Many kelly bars can be applied to any type of piling rig that is available on the market. Kelly bars can be divided into two main types: friction kelly bars and interlocking kelly bars.

The wear bushing is housed in the head or in the spool and is secured by means of two tie down screws to protect it against damage or wear during drilling. It is installed or retrieved with either a simple installation tool or with the HCC combined tool.

Kelly Saver Subs refer to a sub used between the Kelly or top head drive and the drill pipe. It is usually a pin to pin sub that takes the wear abuse to protect the drill pipe and the drive connection. Mills can furnish these subs along with the fluted, hex, or square Kelly Bar drive itself.

Measured Depth (MD) is the length of the wellbore measured along its length. True Vertical Depth (TVD), is the absolute vertical distance between a datum, such as the rotary table, and a point in the wellbore.

A mechanical device for rotating the kelly. The kelly spinner is typically pneumatic. It is a relatively low torque device, useful only for the initial makeup of threaded tool joints. It is not strong enough for proper torque of the tool joint or for rotating the drillstring itself.

This means that Top Drives can drill about 90 feet before making a connection, whereas with a Kelly System, you will make a connection at about 30 feet deep. Another difference between a Kelly and a Top Drive is that a Top Drive System allows rotation and circulation while back reaming out of a hole.

Kelly bars are key components in the execution of boreholes with hydraulic rotary drilling rigs. They transfer the torque of the rotary drive and the crowd pressure of the crowd system concurrently to the drilling tool.

A kelly drive is a type of well drilling device on an oil or gas drilling rig that employs a section of pipe with a polygonal (three-, four-, six-, or eight-sided) or splined outer surface, which passes through the matching polygonal or splined kelly (mating) bushing and rotary table.

A conventional rotary rig or rotary table rig or kelly drive rig is a drilling rig where the rotation of the drill string and bit is applied from a rotary table on the rig floor.

Kelly drive system is capable to drill with one single drill pipe. On other hand TDS is capable to drill with drill pipe stand. One drill pipe stand is made of three drill pipe joints together.

Kelly bars operate by transferring the torque and crowd force from a rotary drive tool to the drilling tool. Many kelly bars can be applied to any type of piling rig that is available on the market. Kelly bars can be divided into two main types: friction kelly bars and interlocking kelly bars.

The global kelly drive market was valued at $1.6 billion in 2021, and is projected to reach $2.3 billion by 2031, growing at a CAGR of 3.7% from 2022 to 2031.

Report Key HighlightersThe kelly drive market is consolidated in nature with few players such as NOV Inc., SANY Group, BAUER Maschinen GmbH (Subsidiary of BAUER Group), Jereh Global Development LLC (As a Subsidiary of Jareh Group) and Liebherr-International Deutschland GmbH. that hold significant share of the market.

The study covers in-depth analysis of 16 countries from different regions including North America, Europe, Asia-Pacific, and LAMEA. In addition, country-wise data of every country has been provided for better understanding of kelly drive market dynamics in every country.

A kelly drive is a particular kind of well drilling tool which uses a section of pipe with a polygonal or splined outer surface and feeds it through a rotary table and matching kelly (mating) bushing which have the same shape or splines. The Kelly is a long, four- or six-sided steel bar having a hole bored through the center to allow drilling fluid to pass through. The kelly bushing allows the drill string to be lifted or lowered while it rotates by transferring rotating motion from the rotary table or kelly bushing to the drill string. Crewmembers make up several attachments to the kelly. The attachments include the upper kelly cock, the lower kelly cock (drill pipe safety valve), and the kelly saver sub.

Kelly drilling is one of the most used dry rotary drilling techniques. The kelly drive is used to create large-diameter bored piles (from a size of approx. 500 mm). With the increasing drilling activities is booting the kelly drive market share in coming year. The kelly drive works with almost any kind of rock and soil. According to kelly drive market forecast, the demand for short rotary drilling instruments, such as augers, core barrels, buckets, and specialized drilling tools which are used to move the dirt will be more in the market. The drill rod which is also known as a kelly bar, is a typical component of this drilling technique. The strong kelly bars enables deep drilling and help in boosting the kelly drive market trend in forecast period.

Globally, there has been a surge in oil exploration activity, which is driving the demand for kelly drive in rig and drilling industry. Apart from the pandemic time, a boom in exploration has tripled over the last five years. Kelly drive market analysis showcase the owing to a global boom in exploration of oil reserves, several oil companies are getting into the rig sector. With the ongoing expansion in petroleum products, large oil extraction companies are contracting with drilling equipment manufacturers for the rent and sale of drilling equipment. Oil exploration companies and equipment companies collaborate to provide offshore support services that can increase production. Factor such as oil exploration activities is likely to boost the market for kelly drive in near future.

Advances in technology and equipment have enabled more oil and natural gas to be recovered from the length of each well, improving production and reducing the environmental footprint of energy production. Kelly drive is cheaper however, technology is slow, inefficient, and unsafe as compared to the other technology which are present or coming in the market. These factors may restrain customers from using kelly drive; thus, hampering the market growth.

With combination of seismic surveys and drilling wells, companies are doing the search of oil reserve and deposits beneath the surface of the earth. Exploration projects can be expensive, time-consuming, and risky, drilling a well may cost tens of millions of dollars. Several factors are considered the number of wells to be drilled, recovery method, type of installation to be used, separation systems for the gas & fluids, and how the oil and gas will be transported to a processing facility. High demand for the petroleum products in the market resulting into several new excavations projects in different regions. This factor is anticipated to increase the sales of kelly drive; thus, creating lucrative kelly drive market opportunities.

The kelly drive market is segmented into product type, and region. On the basis of product type, the market is bifurcated into cleaners, braking oil, grease and lubes, degreaser, and others. Region-wise, the market is studied across North America, Europe, Asia-Pacific, and LAMEA.

In 2021, the square kelly segment was the largest revenue generator, and is anticipated to grow at a CAGR of 3.6% during the forecast period. With the increasing horizontal drilling operations result in increasing demand for square kelly in the market. To increase the output from a single well, drilling square kelly equipment are being used frequently in the market. Square Kelly is advantageous for end-users, however equipment can be used for both onshore and offshore drilling operations. Drilling activities are becoming more challenging which are demanding the high quality of kelly equipment. Several oil firms engage in new types of drilling on land, such as horizontal well drilling which covers a significantly larger area under the earth. With the increasing horizontal well drilling creates the opportunity for square kelly segment in global kelly drive market.

In 2021, the kelly bar segment was the largest revenue generator, and is anticipated to grow at a CAGR of 4.0% during the forecast period. With the increasing number of excavation projects and finding of deep oil reserves will increase the demand for kelly bars in the market. Companies are entering into the agreement for the drilling operations which is driving the kelly bars market. Today, reserves are found very deep under the land of sea which require the high strength bars for handling the pressure. Vertical and horizontal drilling activities are increasing which is increasing the demand for different shapes of kelly bars.

The North America kelly drive market size is projected to grow at the highest CAGR during the forecast period. The region is experiencing more drilling activities of oil and gas extraction as the demand for oil-related goods rises worldwide. Kelly drive equipment is particularly helpful for drilling through hard rock and getting to the oil deposits. The Kelly Drive can be used to reduce operational expenses in drilling operations. For field operators and engineers, it ensures long-term project success and a high rate of return.

LAMEA was the second-largest contributor in terms of revenue in the global kelly drive market in 2021, and is anticipated to grow at a CAGR of 3.8% during the forecast period. Accelerated investment across the upstream sector along with crude oil price recovery will foster the drilling activities in the region. Robust growth in petrochemical products demand along with increase in industrial and commercial activities across the developing economies will boost the kelly drive market growth in LAMEA region.

The leading players operating in the global kelly drive market include, NOV Inc., SANY Group, BAUER Maschinen GmbH (Subsidiary of BAUER Group), Jereh Global Development LLC (As a Subsidiary of Jareh Group) and Liebherr-International Deutschland GmbH, Bridges Equipment LTD, Lake Petro., TEXAS INTERNATIONAL OILFIELD TOOLS, LTD, Goldman, Tianhe Oil Group Co. Ltd., XI"AN KINGWELL OILFIELD MACHINERY CO.,LTD, El Didi Group.

It outlines the current Kelly drive market trends and future estimations from 2021 to 2031 to understand the prevailing opportunities and potential investment pockets.

The invasion of Russia has further worsened an already precarious scenario for the energy and drilling markets, notably in Europe. To minimize the possibility of an interruption in Russian oil and gas supply, oil and gas corporations must collaborate with governments. In longer term, the sector needs to increase its adaptability and relevance in a rapidly evolving energy environment. The scenario brought about by the conflict between Russia and Ukraine influences the Kelly Drive market as well. Many projects that were previously underway in the nations are now on hold, and new projects are being delayed, which has slowed the market"s expansion in recent years.

RK Pipe sells new and used square and pin kelly bushings and replacement parts for your drilling equipment. Please peruse our online inventory and contact our sales department for questions and quotes.

Square drive kelly bushing dimensions, pin drive kelly bushing dimensions, square drive master bushings dimensions, and pin drive master dimensions are shown in Figure 1 and Table 1 (based on API Spec. 7K).

1. In the first design, the drive rollers are in a single plane. Depending on the manufacturer, the kelly bushing may have a split or solid body casing.

2. The second basic design of kelly drive bushings used two rollers for each driving surface on the kelly. The rollers are stacked one above the other in “cages”. All roller pins and bearings are part of this cage assembly. The cages are removable from the bushing body. The two plane roller bushing for hex kellys is adjustable for kelly and bushing wear. The two plane roller bushing for square kellys is not adjustable.

RK Pipe & Supply sells new and used square and hexagonal kellys from multiple manufacturers. Please see our online inventory and contact our sales department for information and quotes.

Kellys are manufactured with one of two drive configurations, square or hexagonal. Dimensions are listed in Table 1 and 2. Square kellys are furnished as forged or machined in the drive section. Hexagonal or fully machined square kellys are machined from full length quenched and tempered round bars.

RK Pipe & Supply sells new and used Rotary Tables and well drilling hoisting tools for your drilling equipment needs. Please check our online inventory and contact our sales department for help and quotations.

A rotary table is a mechanical device on a drilling rig that provides clockwise (as viewed from above) rotational force to the drill string to facilitate the process of drilling a borehole.

In figure 1, #20 (in blue) is the rotary table. The kelly drive #19, is inserted through the center of the rotary table and kelly bushings, and has free vertical (up & down) movement to allow downward force to be applied to the drill string, while the rotary table rotates it. (Note: Force is not actually applied from the top (as to push) but rather the weight is at the bottom of the drill string like a pendulum on a string.)

Most rotary tables are chain driven. These chains resemble very large bicycle chains. The chains require constant oiling to prevent burning and seizing.

Virtually all rotary tables are equipped with a rotary lock. Engaging the lock can either prevent the rotary from turning in one particular direction, or from turning at all. This is commonly used by crews in lieu of using a second pair of tongs to makeup or break out pipe.

The rotary bushings are located at the center of the rotary table. These can generally be removed in two separate pieces to facilitate large items, i.e. drill bits, to pass through the rotary table. The large gap in the center of the rotary bushings is referred to as the “bowl” due to its appearance. The bowl is where the slips are set to hold up the drill string during connections and pipe trips as well as the point the drill string passes through the floor into the wellbore. The rotary bushings connect to the kelly bushings to actually induce the spin required for drilling.

The distance between the center of the rotary table and the center of the first row of sprocket teeth shall be 53- 1/4 in. for machines that will pass a 20 in. bit or larger. It shall be 44 in. for machines that will not pass a 20 in. bit, except that, by agreement between the manufacturer and the purchaser, the distance of 53-1/4 in. may be used. The distance shall be 65 in. for the 49-1/2 in. rotary table opening.

Rotary table pinion-shaft extensions shall be furnished in the sizes shown in In Table 1, as specified on the purchase order, and shall conform to the dimensions and tolerances shown in Table 1 and Figure 1A.

Demountable rotary table sprockets to be mounted on the rotary table shafts are shown in Table 2 and Figure 2. The sprockets, single strand and double strand, have one common hub with identical bolt circle, number of bolts, and size of bolts. (See Table 2 and Figure 2 for shaft details)

Rotary Table openings for square drive master bushings and for pin drive master bushings shall conform to the requirements of Table 3 (based on API Spec 7K).

RK Pipe & Supply sells new and used kelly valves and mud valves from various manufacturers. Please see our online inventory and contact our sales department for information and quotes.

An upper kelly cock is intended for use between the lower end of the swivel sub and the upper end of the kelly. Upper kelly cocks are furnished in 5,000, 10,000 and 15,000 psi maximum working pressure ratings and have a working temperature rating of 180 degrees F maximum.

Upper kelly cocks are furnished with box up and pin down (both left hand) rotary shouldered connections in the size and style shown in Tables 1 and 2.

The outside diameters, bores and bevel diameters on each end of upper kelly cocks conform to the dimensions shown in Tables 1 and 2. The O.D. and shape of the kelly cock body will vary with the manufacturer.

API requires that licensed manufacturers of upper kelly cocks subject each valve to a hydrostatic shop test pressure as shown in Table 3. The required manufacturer’s hydrostatic shop pressure test consists of:

A lower kelly cock (shown in Figure 2) is intended for use between the lower end of the kelly and the upper end of the drill pipe or upper end of the kelly saver sub. Routinely lower kelly cocks are furnished with 5,000 psi maximum pressure ratings. Designs for higher working may be acquired from some manufacturers. The working temperature rating for lower kelly cocks is 180 degrees F.

Lower kelly cocks are furnished with box up and pin down (both right hand) rotary shouldered connections in the sizes and styles shown in Tables 3 and 4. For the upper box and lower pin connections on lower kelly cocks used with 4-1/4 and 5-1/4 square kellys and 5-1/4 and 6 hexagonal kellys, two sizes and styles of connections are standard. The purchase order should state the size and style desired.

New lower kelly cocks are furnished in lengths sufficient to provide a minimum tong space of 8 inches after the box and pin connections have been re-cut at least once.

Lower kelly cocks may be furnished with outside diameters as large as operations in the well permit, in order to produce kelly cocks with a minimum strength in torsion and in tension at least as great as the respective strengths of the tool joints used in the string.

API requires that licensed manufacturers of lower kelly cocks subject each value to a 10,000 psi shop hydraulic test pressure. If higher test pressures are required, the manufacturer should be contacted to arrange the testing.

Mud saver valves (shown in Figure 3) are proprietary valves designed to prevent the drilling mud contained in the kelly from running from the kelly when the lower connection is unscrewed. They are intended for use between the lower end of the kelly and the upper end of the drill pipe.

Mud saver valves are furnished with box up and pin down right hand rotary shouldered connections. Standard sizes and styles of connections are the NC38 (3-1/2″ IF) on the 4-3/4″ O.D. size and the NC50 (4-1/2″ IF) on the 6-1/2″ O.D. size.

DEN-CON 27 RPH Kelly Bushing is used with Den-Con Pin Drive Master-Casing Bushings for 23" through 49 1/2" Rotary Tables. The 27 RPH has 3 5/16 " diameter drive pins (API) and 25 3/4" pin centers (API) and will handle Kelly sizes 3" to 6" square and 3" to 6" hex.

DEN-CON 20 RPH Kelly Bushing is used with Den-Con Pin Drive Master Casing Bushings for 20 1/2" to 22 1/2" Rotary Tables. The 20 RPH has 2 1/2" diameter drive pins (API) and 23" pin centers (API).

SSB Master Bushings and all Master Bushings having a drive square dimension of 13 9/16" (API). This bushing uses the same roller assemblies, components and wiper assemblies as the 27 RPH. All RH Series Parts & Components Interchange with Varco HD Series Bushing Parts.

Drill Pro introduces the All-In-One rotary deck bushing, ball-bearing rotating extended inner bushing with a rotating dust deflector, available for all models of top-drive drills. This product has been created to provide drill rig operators with a means to improve performance and increase production of the blast hole drill. The All-In-One has been designed to reduce dust and debris on the deck, offer a safer and cleaner work environment, provide additional stabilization at deck level, increase drill steel and bushing life, reduce vibration and reduce operation replacement downtime. Dill Pro International Inc., Card No. 15