kelly bushing drilling made in china

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Chengdu Zhonghang Machinery Co., Ltd( brand: tiger rig) was established in 2005 year, and reformed into a private enterprise in 1990.The company lies in Xindu town, Chengdu City, which is the most vigorous, and most potential city at the west of China. Tiger rig devoted itself to the research on the wellhead tools, and the great-leap-forward development. Drill pipe power tong designed and manufactured by the company is a necessary and symbolic tool for mechanized wellhead operation; a batch of automation wellhead tools represented by Iron roughneck developed in recent years creates the new era for drilling machines on the wellhead. The company is a specialization company with longest history, complete varieties, and strongest capacity for developing and researching wellhead tools and equipment. At present, the company has formed more than 50 series and more than 100 specs of products, which have been widely used in all oilfields in China, and have been export to Europe, America, Southeast Asia, the Middle East, Central Asia, North Africa and other regions.

We can supply wellhead product as such drilling pipe power tong, casing power tong, hydraulic power tong, air winch, hydraulic cathead, rotary cathead, casing guide, deadline anchor, Kelly bushing, master bushing, Kelly or swivel spinner, casing tubing coupling bucking unit, Elevator, Spinners, slip ,clamp and so on.

Adhering to the "people-oriented, technology leadership, honest and quality excellent, win-win cooperation, the customer first" business idea, and carefully creating "tiger rig" brands. Firmly aimed at the international advanced technology and management philosophy for petroleum machinery. We will make our efforts to supply the best surface operation tools and the drilling and producing equipment for the oilfields in China and the world.

Our company produces all kinds of bushings, including casing bushings, kelly bushings and so on. Casing bushings are manufactured with high-strength heat treated steel. They"re specially designed to work with NOV rotary equipment and handling tools. With interchangeable insert bowls, these casing bushings can accommodate casing sizes from 16 inches up to 42 inches in diameter. There are three standard types for choice. Models CU and CUL are solid bushings, while the Model CB is a split bushing. These bushings are available for 17 1/2 in to 49 1/2 in rotary tables. In the operation, casing bushings are inserted directly into the rotary table to ensure that the casing runs perfectly with the center of the hole.

As a professional China casing bushings, kelly bushings and other oil drilling tools manufacturer, Jiangsu Kayson Petrol- Machinery Co., Ltd becomes a first-level supply member of Chinese Petroleum & Natural Gas Consortium. At the same time, it"s also the member of China Petrochemical Material Resources Market. And it has achieved the right for products import and export.

One or more valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and the drill pipe or in open hole (for example, hole with no drill pipe) during drilling or completion operations. See annular blowout preventer and ram blowout preventer.†

The arrangement of piping and special valves, called chokes, through which drilling mud is circulated when the blowout preventers are closed to control the pressures encountered during a kick.†

A centrifugal device for removing sand from drilling fluid to prevent abrasion of the pumps. It may be operated mechanically or by a fast-moving stream of fluid inside a special cone-shaped vessel, in which case it is sometimes called a hydrocyclone.†

A centrifugal device, similar to a desander, used to remove very fine particles, or silt, from drilling fluid. This keeps the amount of solids in the fluid to the lowest possible level.†

The hoisting mechanism on a drilling rig. It is essentially a large winch that spools off or takes in the drilling line and thus raises or lowers the drill stem and bit.†

The cutting or boring element used in drilling oil and gas wells. Most bits used in rotary drilling are roller-cone bits. The bit consists of the cutting elements and the circulating element. The circulating element permits the passage of drilling fluid and uses the hydraulic force of the fluid stream to improve drilling rates.†

The heavy seamless tubing used to rotate the bit and circulate the drilling fluid. Joints of pipe 30 feet long are coupled together with tool joints.†

A wire rope hoisting line, reeved on sheaves of the crown block and traveling block (in effect a block and tackle). Its primary purpose is to hoist or lower drill pipe or casing from or into a well. Also, a wire rope used to support the drilling tools.†

A device fitted to the rotary table through which the kelly passes. It is the means by which the torque of the rotary table is transmitted to the kelly and to the drill stem. Also called the drive bushing.†

A series of open tanks, usually made of steel plates, through which the drilling mud is cycled to allow sand and sediments to settle out. Additives are mixed with the mud in the pit, and the fluid is temporarily stored there before being pumped back into the well. Mud pit compartments are also called shaker pits, settling pits, and suction pits, depending on their main purpose.†

A trough or pipe, placed between the surface connections at the well bore and the shale shaker. Drilling mud flows through it upon its return to the surface from the hole.†

A diesel, Liquefied Petroleum Gas (LPG), natural gas, or gasoline engine, along with a mechanical transmission and generator for producing power for the drilling rig. Newer rigs use electric generators to power electric motors on the other parts of the rig.†

A hole in the rig floor 30 to 35 feet deep, lined with casing that projects above the floor. The kelly is placed in the rathole when hoisting operations are in progress.†

A mud pit in which a supply of drilling fluid has been stored. Also, a waste pit, usually an excavated, earthen-walled pit. It may be lined with plastic to prevent soil contamination.†

The hose on a rotary drilling rig that conducts the drilling fluid from the mud pump and standpipe to the swivel and kelly; also called the mud hose or the kelly hose.†

The principal component of a rotary, or rotary machine, used to turn the drill stem and support the drilling assembly. It has a beveled gear arrangement to create the rotational motion and an opening into which bushings are fitted to drive and support the drilling assembly.

A series of trays with sieves or screens that vibrate to remove cuttings from circulating fluid in rotary drilling operations. The size of the openings in the sieve is selected to match the size of the solids in the drilling fluid and the anticipated size of cuttings. Also called a shaker.†

Wedge-shaped pieces of metal with teeth or other gripping elements that are used to prevent pipe from slipping down into the hole or to hold pipe in place. Rotary slips fit around the drill pipe and wedge against the master bushing to support the pipe. Power slips are pneumatically or hydraulically actuated devices that allow the crew to dispense with the manual handling of slips when making a connection. Packers and other down hole equipment are secured in position by slips that engage the pipe by action directed at the surface.†

A rotary tool that is hung from the rotary hook and traveling block to suspend and permit free rotation of the drill stem. It also provides a connection for the rotary hose and a passageway for the flow of drilling fluid into the drill stem.†

The top drive rotates the drill string end bit without the use of a kelly and rotary table. The top drive is operated from a control console on the rig floor.†

Roller Kelly Bushing is an essential petroleum drilling tool, and can be equipped with rotary slips, so as to drive Kelly bar. The product reduces its friction with Kelly bar by the rolling of four rollers in order to prolong its life. The product can also fit to foursided or sixsided Kelly bar by charging roller, and then connect it with various rotary tables, with two drive methods, namely, square drive and pin shaft drive. This unit is used for heavy duty drilling operations and high torque conditions on off shore as well as on shore drilling operations.

The Roller Kelly Bushing is simple in operation, convenient in installation and perfect in safety performance. It can be applied to rotary table from 17 1/2” to 49 1/2”, and handle kelly sizes from 3” to 6” square or hexagonal.