The oil contained in the porosity provides a constant lubrication between bearing and shaft, so the system does not need any additional external lubricant. Selflubricating bushings a selflubricating sintered bushing is a metallic component with high porosity 2025% in volume, impregnated with a lubricant oil. The kelly bushing elevation is calculated by adding the ground level to the kelly bushing height. The optional lock assembly locks the kelly bushing in the. Kelly and kelly drive bushing joy manufacturing company. Kbe stands for kelly bushing elevation measurement. Apr 11, 2020 an adapter that serves to connect the rotary table to the kelly. Ground level sea level mud line attributes kelly bushing height kelly bushing elevation rotary table height roatry table elevation derrick floor height derrick floor elevation casing flange height casing flange elevation not in ppdm data model. It is the means by which the torque of the rotary table is transmitted to the kelly and to the drill stem. Kelly bushing general petroleum oil tools pin drive and square drive kelly bushings are designed for rugged high torque and high speed drilling operations. A device fitted to the rotary table through which the kelly passes. The dencon rh series roller kelly bushing is designed for heavy duty drilling operations, high torque and. Roller kelly bushings are used for 17 1249 12 inch rotary tables. It is connected to the rotary table by four large steel pins that fit into mating holes in the rotary table.
Kelly drive bushings single and doubleplane rollers. As is well known in oil well drilling, a swivel supported kelly is rotatably driven by a kelly bushing which also permits translational movement of the kelly into a well hole. Rkb is defined as rig kelly bushing oil and gas depth reference point rarely. Roller for kelly drive bushing hds sq 312 master bushing. Mdbrt stands for measured depth below rotary table mdbrt. Cul and cb casing bushings and insert bowls can handle casing from 958 to 30 inch o. Another name for kelly bushing is kelly drive bushing. A wide variety of kelly drive bushings options are available to you, there are 42 suppliers who sells kelly drive bushings on, mainly located in asia. A wide variety of kelly bushing options are available to you, such as stainless steel. Western silverlines pin drive and square drive kelly bushings are designed for rugged high. The kelly bushing has an inside diameter profile that matches that of the kelly, usually square or hexagonal. Rkb rig kelly bushing oil and gas depth reference point. 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.
It is the means by which the torque of the rotary table is transmitted to the kelly and to. This tool is used to fit inside the head where the kelly fits. Apr 20, 1982 the present invention relates to rotary drilling apparatus and more particularly to an improved kelly and a drive bushing for rotating the kelly. Janki oil tools about jot certification service vision and mission our customer janki oil tools was established in the year 1993, a well known manufacturer of oil field.
There are two basic designs of kelly drive bushings single and doubleplane. Applicable kelly size type hds 27hdp 20hdp 4krvs 20mdp 17mdp 4krbm style heavy duty medium duty. 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. Many wellbore depth measurements are taken from the kelly bushing. Rotary equipment users handbook nov free download as pdf file. This tool also works along with other drilling tools. More power for bigger jobs when you need more power, more options and more digging. These rollers can be pin drives or square drives whose sizes can be changed for accommodating the bushings. The height of the drilling floor above the ground level. Get free 2day shipping on qualified bushing, 114 products or buy products today with buy online pick up in store. Tell a friend about us, add a link to this page, or visit the webmasters page for free fun content.
An adapter that serves to connect the rotary table to the kelly. Roller kelly bushings can be classed as two types based on different ways of drive, square drive and pin drive. Depth in a well as used in the oil and gas industry. Rig kelly bushing how is rig kelly bushing abbreviated. This bushing is equivalent to a 4krvs kelly bushing. The nonrotating stabilizer consists of mandrel, copper washer, rubber sleeve, spacer sleeve and selflocking lower sub. Rkb stands for rig kelly bushing oil and gas depth reference point. The kelly is the polygonal tubing and the kelly bushing is the mechanical device that turns the kelly when rotated by the rotary table. The top countries of suppliers are india, china, and india, from which the percentage of kelly bushing supply is 1%, 97%, and 1% respectively. The upper end of the kelly is screwed into the swivel, using a lefthand thread to preclude loosening from the righthand torque applied below.
This bushing uses the same roller assemblies, components and wiper assemblies as the 27 rph. Dencon rsh kelly bushing is a square drive unit used with dencon ssb master bushings and all master bushings having a drive square dimension of 916 api. Kelly bushing fits into a part of the rotary table called the. Also they can be classed as three types based on different style, heavy, medium and lightduty. Kelly bushing article about kelly bushing by the free. It is the principal object of the present invenr25 tion to provide a kelly bar bushing in which a relatively large surface area is exposed to the kelly bar and. Janki oil tools kelly bushing, heavy duty pin drive. Kelly bushing fits into a part of the rotary table, called the master bushing. Ground level sea level mud line attributes kelly bushing. Varco 4kr series kelly bushings the varco 4krvs and 4krbm. Janki oil tools kelly bushing, heavy duty pin drive kelly.
Rotary equipment users handbook nov bearing mechanical. Content of petrowiki is intended for personal use only and to supplement, not replace, engineering judgment. It is preferable to provide rollers with large diameters in order to exchange every face of the kelly. There are 162 suppliers who sells kelly bushing on, mainly located in asia. The total depth for the well, core depths and all analysis of core mud and other materials from the drilling hole are measured in drillers depth. Roller kelly bushings srlf professional rig handling. Roller wpin for kelly drive bushing 4krvs sq 414 roller wo pin for kelly drive bushing hds sq 514 roller for kelly drive bushing hdp sq 514 roller for kelly drive bushing hds sq 414 with pins. A device added to the rotary table through which the kelly passes, so that the torque of the table is transmitted to the kelly and the drill explanation of kelly bushing.
Kelly bushing height archives production technology. Rotary table supplies necessary toque to turn the drill stem, accompanied by gripping devices, called slips 27. Kelly bushing, also known as drive bushing, is a drilling device that is used to connect a kelly with a rotary table. The undefined acronym abbreviationslang rkb means relative to kelly bushing. In compliance with european union eu legislation for visitors from the eu, schlumberger requests your permission to place cookies on your computer to both.
Kelly bushing rollers are essential for driving the kelly so as to reduce the frictional resistance to basic movement of the kelly. This bushing is without rollers, depending on the size kelly you have we can offer a new set rollers with this item. All camtech pin drive kelly bushings are sold with camtech safety drive pins c1605sp. The kelly then turns the entire drillstring because it is screwed into the top of the drillstring itself. They are designed and manufactured according to api spec 7k. Bushings, master bushing, roller kelly bushing, casing. Kelly bushing occupational safety and health administration. Dencon rsm kelly bushing for square drive master bushing. Spe disclaims any and all liability for your use of such content. How is rig kelly bushing oil and gas depth reference point abbreviated. Well depth values taken during the drilling operation are referred to as drillers depth. Tianhe nonrotating stabilizer rubber sleeve stabilizer is a special tool in drilling to avoid blade wear and wall damage. 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. Kelly bushing western silverlines pin drive and square drive kelly bushings are designed for rugged high torque and high speed drilling operations.
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