kelly hose drilling definition for sale

Flexible drilling rubber hoses play an important role in petroleum extraction. They should suffer high operating pressure, extreme operating temperature, abrasion and other inferior elements. Our special compounded synthetic rubber has been proven an effective and economical way to reject these problems. All our oilfield drill hoses are manufactured as API 7K or other related specifications.

Steel cable reinforcement loads most working pressure up to 15,000psi. The wires are usually zinc-plating or copper platting to improve steel wire resistant against rust and corrosion. Due to the thick reinforcement, the hoses should be handled or stored in correct way to avoid kicking or crushing. They will substantially decrease their rated operating pressure.

Rotary hose, Kelly hose, cement hose, mud hose, jumper hose and vibrator hose and choke & kill hoses are the most popular oilfield rubber hoses. They convey high-pressure drilling fluid from one place to another. Many end fittings are provided to satisfy different applications. Most end fittings are made according to API standards. Special order is also available.

A large-diameter (3- to 5-in inside diameter), high-pressure flexible line used to connect the standpipe to the swivel. This flexible piping arrangement permits the kelly (and, in turn, the drillstring and bit) to be raised or lowered while drilling fluid is pumped through the drillstring. The simultaneous lowering of the drillstring while pumping fluid is critical to the drilling operation.

A rotary/pumper hose is used in oil well drilling. It acts as the crucial instrument in the connection being made between the standpipe and the swivel.

A rotary hose is also used as a means of permitting the kelly to be either raised or lowered through the drilling process while also allowing the drill bit to be raised with the drillstring. For this reason, it is also often referred to as a “kelly hose.”

Rotary hoses also function during the process that allows the drilling fluid to be pumped through the hose when the bit and drillstring are raised and lowered.

This process is imperative in the completion of the drilling process. The drillstring portion of the drilling line and the connection to the rotary hose is thus crucial.

A large-diameter (3- to 5-in inside diameter), high-pressure flexible line used to connect the standpipe to the swivel. This flexible piping arrangement permits the kelly (and, in turn, the drillstring and bit) to be raised or lowered while drilling fluid is pumped through the drillstring. The simultaneous lowering of the drillstring while pumping fluid is critical to the drilling operation.

Made of heavy rubber and steel cables the hose is basicly flexible piping that allows the Kelly and the bit and drill string to be raised and lowered while the drilling fluid is pumped through drill string.

lowering the drill string and pumping drilling mud is very important to the drilling process and when these hoses go down or fail in service a entire rig can shut down.

Made of heavy rubber and steel cables the hose is basicly flexible piping that allows the Kelly and the bit and drill string to be raised and lowered while the drilling fluid is pumped through drill string.

Rotary Drilling/Pumper hose is mainly used for conveying water-based or oil-based mud and other fluids in the working temperature of -30 °C to +82 °C.

The reinforcement is made from 2-8 layers of high tensile and high strength spiraled steel wire, making the hose have solid structure and resistant to high pressure.

The cover is made from high quality synthetic rubber, mainly chloroprene rubber, making the hose resistant to abrasion, corrosion, cut, weather, ozone, aging and sunlight.

A Kelly hose (also known as a mud hose or rotary hose) is a flexible, steel reinforced, high pressure hose that connects the standpipe to the kelly (or more specifically to the goose-neck on the swivel above the kelly) and allows free vertical movement of the kelly while facilitating the flow of drilling fluid through the system and down the drill string.

Flexible drilling rubber hoses play an important role in petroleum extraction. They should suffer high operating pressure, extreme operating temperature, abrasion and other inferior elements. Our special compounded synthetic rubber has been proven an effective and economical way to reject these problems. All our oilfield drill hoses are manufactured as API 7K or other related specifications.

Steel cable reinforcement loads most working pressure up to 15,000psi. The wires are usually zinc-plating or copper platting to improve steel wire resistant against rust and corrosion. Due to the thick reinforcement, the hoses should be handled or stored in correct way to avoid kicking or crushing. They will substantially decrease their rated operating pressure.

We are global leader in the design, manufacture and supply of high pressure hoses.As drilling operation methods evolve, become deeper, with increasing pressure and higher temperatures,

We have over 50 years of experience in metallic reinforced bonded elastomer hoses and has been the first company to obtain certification for all three governing industry standards: API 7K, 16C and 17K standard.

We have since built up a broad portfolio for a variety of drilling applications, such as flexible choke & kill Lines, rotary & vibrator hoses, managed pressure drilling hoses to meet the needs of both onshore & offshore drillers and distributors.

Our key offering includes rotary drilling / vibrator hose grade D and E, choke and kill, cement and sour hoses. The supports the pumping of mud at very high pressure during drilling and exploration campaigns.

Protects the polymer lining from mechanical damage, prevents blistering in case of high pressure gas service and decompression with vacuum service, supports the wall of the flexible hose.

The lining material is selected to withstand chemical and heat effects of drilling mud, well effluents, cement slurry, hydraulic fluid or whatever substance is conveyed through the hose.

High-pressure mud hose also called rotary hose, vibrator hose or jumper hose, is used to convey drilling fluid from mud pump to the mud standpipe manifold on the drill floor.

The main advantage of a kelly hose is that it helps you move water from one point to another without much struggle. Hose pipes are also versatile and can be used for various activities in your home or at your workplace. Moreover, rubber horse pipes are durable since rubber is a strong material. This means that you won’t need to replace it often. Additionally, rubber hoses are less prone to cuts and abrasions. Another advantage of this hose pipe is that it absorbs shocks and vibrations. Also, there is no need for specialized bending or brazing since it can bend easily. Lastly, it reduces pressure surges and lubricates itself.

When buying a kelly hose, there are several factors that you need to consider, including length, couplings, thickness, and price. The length of the kelly hose is an important factor to consider. If you are taking the water to the furthest corner of your compound, consider getting a longer pipe for convenience. Also, if you are watering a large garden, a longer pipe will serve you better. Couplings or horse pipe fittings are also another important consideration. These are the accessories that help you connect your pipe to the water source. They can either be made from brass or plastic. Some people prefer plastic couplings since they are lightweight, but they can break easily. Brass fittings are heavier but long-lasting. Lastly, consider the thickness of the pipe. This refers to the number of layers used to make the kelly hose. Thickness determines the weight of the pipe and ease of bending.

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Kelly bars (also called grief joints, kelly joints and kelly stems) are used during the execution of boreholes by hydraulic rotary drilling rigs. The bars themselves are hollow and attach to the top of the drill column. 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. Friction kelly bars are named such due to the frictional contact created between the rails of each element. Interlocking kelly bars, on the other hand, do not have frictional contact between the rails of each element, but instead have drive ribs that are welded with lock devices in order to transfer the maximum amount of torque to each scope. Standard kelly bars are manufactured to be fully lockable systems with a mechanical locking mechanism between each element and the outer bar and rotary drive.

When purchasing a kelly bar for a drill rig, it"s important to look for bars made of high-quality steel with strong mechanical features. No matter whether buying kelly bars new or used, it"s also good to look for bars that include origin and quality certificates to guarantee their reliability and longevity. All kelly bars can be purchased with a damping noise system, which can help to reduce the disruptive, high-frequency noises produced during operation; a damping noise system comprises of a phono-absorbent material applied to the outer scope of the kelly bar, which is protected by a steel plates.

Kelly bars are key components in the execution of boreholes by hydraulic rotary drilling rigs. Teleskopic Kelly bars transfer torque and crowd force from the rotary drive to the drilling tool. Hunan HM Machinery Co is a highly specialized manufacturer of telescopic kelly bars to be applied to any type of piling rig available in the market such as Bauer, Sany, Xcmg, Zoomlion, Sunward, Soilmec, IMT, Mait.... Kelly bars are featuring specific construction details:

HM Machinery Co kelly bars are designed by technicians and engineers with over 10 years experience. Construction and welding manufacturing process of kelly bars is by means of high quality materials and high mechanical features steel, provided with origin and quality certificates to guarantee long-life and reliability of the product after accurate engineering process.

The rotary system includes all of the equipment used to achieve bit rotation. Originally, the main driver in the system of all rigs was the rotary table. The main parts of the rotary system with a rotary table are the swivel, kelly, and drillstring.

The rotary swivel (Fig. 1)serves two important functions in the drilling process. It is a connecting point between the circulating system and the rotary system. It also provides a fl uid seal that must absorb rotational wear while holding pressure. The upper section of the swivel has a bail for connection to the elevator hook, and the gooseneck of the swivel provides a downward-pointing connection for the rotary hose.

The kelly is the fi rst section of pipe below the swivel. The outside cross section of the kelly is square or (mostcommonly) hexagonal to permit it to be gripped easily for turning. Torque is transmitted to the kelly through kelly bushings, which fi t inside the master bushing of the rotary table. The kelly thread is right-handed on the lower end and left-handed on the upper end to permit normal right-hand rotation of the drillstring.

During drilling operations, in every connection, a new pipe is added below the kelly. To avoid premature wear in the kelly’s threads, a kelly saver sub is used between the kelly and the fi rst joint of drillpipe. Kelly cock valves are located on either end of the kelly.

Modern rigs use a topdrive to replace the kelly, kelly bushings, and rotary table. Drillstring rotation is achieved through hydraulic or electric motors. One type of topdrive is shown in Fig. 2

Topdrives are suspended from the hook and can travel up and down the derrick. This will allow drilling to be done with stands of pipes, instead of single joints, which will save considerable time. Comparing with the conventional process, where a new pipe must be added to the drillstring after the length of just one joint has been drilled, using a topdrive system, a new connection will occur only after the length of one stand (two, three, or four pipes) has been drilled.

Range 2 drillpipe is used most commonly. Since each joint of pipe has a unique length, the length of each joint must be measured carefully and recorded to allow a determination of total well depth during drilling operations.

The BHA is the lower section of the drillstring. Even though a BHA may have many different tubulars depending on the complexity of the operation, most of the BHA is composed of drill collars (Fig. 3c). The drill collars are thick-walled, heavy steel tubulars used to apply weight to the bit. The buckling tendency of the relatively thinwalled drillpipe is too great to use it for this purpose. The smaller clearance between the borehole and the drill collars helps to keep the hole straight. Stabilizers (Fig. 4)often are used in the drill collar string to assist in keeping the drill collars centralized. Other types of tubulars used include shock absorbers and drilling jars. In addition, heavyweight drillpipes, a type of drillpipe with thicker walls, are commonly placed on top of the BHA to make the transition between the heavier drill collars and the drillpipes.

AUTHORIZATION FOR EXPENDITURE (AFE)A document used to estimate the cost of drilling a well or installing major equipment facilities in an oil field. The AFE is submitted to management and/or industry partners in the activity for their authorization and approval of the expenditure. The AFE is a budgetary device; when the project is complete, the operator collects invoices of actual work done and compares it to the AFE, should the project come in under budget, he refunds the balance. If the project has cost overruns, the operator submits additional invoices to the participants.

DEVELOPMENT DRILLING– A development well is generally a well drilled as an additional well to the same oil and gas reservoir as other producing wells and not more than one location away from a producing well.

DRILLING MUD –A special mixture of clay, water, and chemical additives pumped down hole through the drill pipe and drill bit. The mud cools the rapidly rotating drill bit; lubricates the drill pipe as it turns in the well bore; carries rock cuttings to the surface; and serves as plaster to prevent the wall of the bore hole from crumbling or collapsing. Drilling mud also provides the weight or hydrostatic head to prevent extraneous fluids to entering the well bore and to control down-hole pressures that might be encountered.

DRY-HOLE COST –The cost of drilling the well; also known asDRILLING COST. Completion costs are in addition to drilling costs but only come due if the well locates producible oil or gas.

FARM OUT AGREEMENT– A form of agreement between oil operators whereby the owner of a lease who is not interested in drilling at the time agrees to assign the lease or a portion of it to another operator who wishes to drill the acreage. The seller may or may not retain an interest (Royalty or production payment) in the production.

FLANGE-UP– Oil-field slang meaning to finish the job. Derived from work with pipe having flanges (rims) on the ends; this pipe is bolted together at those flanges; the pipe can carry liquids once it is “Flanged Up.”

GAS-CUT MUD– Drilling mud aerated or charged with gas from formations down hole. The gas forms bubbles in the drilling fluid. Gas-cut mud may indicate commercial quantities of gas present in the formation.

GAS KICK– Pressure from down hole in excess of that exerted by the weight of the drilling mud, causing loss of circulation. If the gas pressure is not controlled by increasing the mud weight, a kick can violently expel the column of drilling mud resulting in aBlow-out.

INFILL DRILLING –Wells drilled to fill in between established producing wells on a lease to increase production from the lease. SeeDevelopment Drilling.

INTANGIBLE DRILLING COSTS –Expenditures made by an operator for labor, fuel, repairs, hauling and supplies used in drilling and completing a well for production. Intangible drilling costs include also the construction of derricks, tanks, pipelines on the lease, buildings, and preparation of the drill site but does not include the cost of materials or equipment. A rule of thumb is: do the items for which expenditure were made have any salvage value? If not, they qualify under the tax laws as intangible drilling costs.

INTERMEDIATE STRING– SeeCasing. There may be several strings of casing in a well, one inside another. The first casing put in a well is called Surface Pipe which is cemented into place and serves to shut out and protect shallow water formations and also as a foundation or anchor for all subsequent drilling activity. Extremely deep wells will often have an “intermediate string” cemented in place to protect and preserve the well bore as the remaining hole is drilled and completed.

JACK–KNIFE RIG– A mast-type derrick whose supporting legs are hinged at the base. When the rig is to be moved, it is lowered or laid down intact and transported by truck.

JOINT– A length of pipe, casing, or tubing usually from 20 to 30 feet long. On a drilling rig, drill pipe and tubing are lowered into the hole the first time one joint at a time. When pulled from the hole and stacked in the rig, they are usually pulled two, three, or four at a time. These multiple-joint sections are calledStands.

KELLY– The first and sturdiest joint of the drill column; a thick-walled, hollow steel forging with two flat sides and two rounded sides. When fitted into the square hole in the rotary table will rotate the kelly joint and thence the drill column and drill bit. Attached to the top of the kelly is the swivel andmud hose.

KELLY HOSE or MUD HOSE –This is a flexible, steel-reinforced, rubber hose connecting the mud pump with the swivel and kelly joint on the drilling rig. Mud is pumped through the mud hose to the swivel and down through the kelly joint and drill pipe to the drill bit at the bottom of the hole.

LOSS OF CIRCULATION– A condition that exists when drilling mud pumped into the well through the drill pipe does not return to the surface. This serious condition results from the mud being lost in porous formations, a crevice or cavern penetrated by the drill bit.

LOST CIRCULATION MATERIAL –Material that is added to the drilling mud when circulation is lost to assist in plugging the breached area of the well bore.

MUD –A special mixture of clay, water, and chemical additives pumped down hole through the drill pipe and drill bit. The mud cools the rapidly rotating drill bit; lubricates the drill pipe as it turns in the well bore; carries rock cuttings to the surface; and serves as plaster to prevent the wall of the bore hole from crumbling or collapsing. Drilling mud also provides the weight or hydrostatic head to prevent extraneous fluids to entering the well bore and to control down-hole pressures that might be encountered. SeeDrilling Mud and Blow Out.

MUDLOG –A progressive analysis of the well-bore cuttings washed up from the bore hole by the drilling mud. Rock chips are retrieved and examined by the geologist. Modern drilling operations include an electronic evaluation of the mud itself that indicates the presence of hydrocarbons in the mud along with the analysis of the well-bore cuttings.

MUD PITS –SeeRESERVE PITS. Excavations near the rig into which drilling mud is circulated. Mud pumps withdraw the mud from one end of the pit as the circulated mud, bearing rock chips from the bore hole, flows in at the other end. As the mud moves toward the suction line, the cuttings drop out leaving “clean” mud ready for another drip down the well bore.

ONE-THIRD FOR A QUARTER– A term used by independent oil operators who are selling interests in a well they propose to drill. An industry partner who agrees to the one-third for a quarter deal will pay one-third of the cost of the well to some point and receive one-fourth of the well’s net production. When the operator sells three of these one-third for a quarter interests, his industry partners will have paid the cost of drilling the well to casing point.

OPERATOR– A person or entity engaged in the business of exercising direct responsibility and supervision over drilling, completion, operation, maintenance, and production from an oil/gas well.

PAYOUT– The recovery from production of the costs of drilling, completing and equipping a well. Sometimes included in in the costs is a pro-rata share of lease costs.

RAT HOLE –A slanted hole drilled near the well’s bore hole to hold theKellyjoint when not in use. The kelly is unscrewed from the drill string and lowered into the rat hole as a pistol into a scabbard.

RESERVE PIT –SeeMud Pits. An excavation connected to the working mud pits of a drilling well to hold excess or reserve drilling mud; a standby pit containing already-mixed drilling mud for use in an emergency when extra mud is needed.

ROYALTY a.k.a. ROYALTY INTEREST (R.I.)A share of the minerals (oil and gas) produced from a property by the owner of the property. Originally, the right of the king to receive a percentage of the minerals taken from the mines of his realm. (Silver, gold, salt, copper, etc) Entitles the owner to a share of gross proceeds which is free of expense of drilling, completion and production, but having no control over field activities.

SCOUT TICKET– a standard form of information about activities on a drilling location or well. The information includes dates, well’s depth, formations encountered, well logs and tests run. Completion information is briefly described as is the fate of the well, whether put in production or plugged.

SPUD– To start the actual drilling of a well. The first section of the hole is drilled with a large-diameter spudding bit down several hundred feet to accommodate the surface pipe which may be 8 to 20 inches in diameter, depending upon the depth to which the well will ultimately be drilled. The surface pipe is cemented into this hole to protect the surface formations which might contain potable water.

STEP-OUT WELL – a.k.a. Offset Well– A well drilled adjacent to a proven well but located in an unproven area; a well located a “step out” from proven territory in an effort to determine the boundaries of a producing formation. SeeDevelopment Drilling.

TURNKEY CONTRACT– A contract to drill, complete and equip an oil or gas well for a set, predetermined price. The turnkey format is designed to limit the liability of an industry partner to the amount of their capital contribution for drilling and completion.

WORKING INTEREST (W.I.)– The operating interest entitling the holder, at his or its expense, to conduct drilling and production operations on the property and to receive the net revenues from such operations.

A kelly hose is a piece of mining equipment. Specifically, it refers to a piece of equipment used in the mining of fluid or semi-fluid resources, such as oil and natural gas. The main purpose of a kelly hose is to allow the drill string to be raised and lowered at the same time that drill fluid is being pumped through it. This is important, as drill fluid is critical to the mining process.

In most cases, a kelly hose is classified as a large-diameter hose. This means that the inside diameter is usually between 3 and 5 inches (about 7.6 cm and 12.7 cm). This wide diameter allows for a significant rate of flow and reduces the likelihood of a blockage occurring in the hose.

The kelly hose must also be able to withstand large amounts of pressure. This applies primarily to the pressure of the fluid flowing through the hose. For this reason, it is often made of highly durable material and is generally reinforced with steel.

In a derrick or drilling rig, the kelly hose connects the standpipe, which is the rigid metal shaft that delivers the mining fluid, to the swivel, which is the piece that supports the weight of and controls the rotation of the drill string. Its purpose is to provide a flexible drilling fluid conduit, as a rigid conduit would be unable to move with the swivel and would therefore disallow movement of the drill string and, subsequently, the bit.

The drilling fluid, sometimes called drilling mud, carried by a kelly hose is critical to operations in several ways. It keeps the bit cool, which helps reduce friction and failure. It also cleans the bit and carries away drill cuttings so they cannot damage the drill assembly. Some varieties are used for additional purposes, such as preventing corrosion and providing hydrostatic pressure. Drilling fluid is not necessarily fluid, but may, in fact, be a solid, liquid, gas or other combined form.

The kelly hose is so named because of its connection with the kelly, the actual mechanical piece that ejects the drilling fluid over the drill string. It may alternatively be called a mud hose or a rotary hose. Failure can occur, despite the rugged construction of the hose. Such failure can lead to damage to the rig or a failure to operate. Failed kelly hoses must be repaired or replaced before mining operations can safely and effectively resume.

The drilling fluid circulating system is like a close loop electric circuit through which drilling fluid (i.e. mud) can travel from the surface to all the way downhole and back to its initial point (i.e. mud pit).

Drilling fluid (i.e. mud) goes from the mud pits to main rig pumps (i.e. mud pump), and then major components including surface piping, standpipe, kelly hose, swivel, kelly, drill pipe, drill collar, bit nozzles, the various annular geometries (annulus means space between drill pipe and hole) of the open hole and casing strings, flow line, mud control equipment, mud tanks, and again the mud pit/mud pump (Figure 1). It is obvious that the rock cuttings must be removed from the borehole to allow drilling to proceed. This is done by pumping drilling fluid down the drill-string, through the bit and up the annulus.

The cuttings are then separated from the mud, which is then recycled. The circulating system (i.e. drilling fluid) also enables to clean the hole of cuttings made by the bit; to exert a hydrostatic pressure sufficient to prevent formation fluids entering the borehole, and to maintain the stability of the hole by depositing a thin mud-cake on the sides of the hole.

The main components related to the circulating system are mud pumps, mud pits, mud mixing equipment and contaminant removal equipment (Figure 2). The detailed equipment list for this system is shown in Figure 1 and Figure 2. Drilling fluid is usually a mixture of water, clay, weighting material (barite) and chemicals. A variety of mud are now widely used (i.e. oil base, invert oil emulsion).

Positive displacement pumps are used (reciprocating pistons) to deliver high volumes at high discharge pressures. The discharge line from the mud pumps is connected to the standpipe, a steel pipe mounted vertically on one leg of the derrick. A flexible rubber hose (i.e. kelly hose) connects the top of the standpipe to the swivel via the gooseneck (Figure 7). Once the mud has been circulated around the system it will contain suspended solids, perhaps some gas and other contaminants. These must be removed before the mud is recycled. The mud passes over a shale shaker, which is basically a shaker screen. This removes the larger particles while allowing the residue (underflow) to pass into settling tanks. The finer material can be removed using desanders, desilter, vacuum degassers, and decanting centrifuges.