workover rig diagram factory
PRODUCT DESCRIPTION This is one of our best selling product. A kit of Catterpillar and Allison transmission provides steady and powerful output to enable the 250 rig can actually handle much heav...
Product name: 5000m truck mounted drilling rig/workover rig Advantages: 1.truck mounted drilling rigs manufacturer 2.Approved API&ISO certificate 3.Max Nominal drilling depth:5...
PRODUCT DESCRIPTION XJ450 (80t) workover rig is capable of workover depth up to 4,500m and service depth up to 5,500m. Equipped with rotary table, swivel and drilling tools, it can also perform a...
This workover rig is mainly used for drilling service in 800m-4000m(4-1/2 DP) depth oil, water well and coal gas well.(1) The design and manufacturing for the rig stick to this principle that is...
The slant-well workover rigs* This kind of workover rigs are designed and manufactured in accordance with API Spec Q14F7k8C and technical standards of RP500,GB3826.1GB3836.2 GB7258,SY5202 as we...
The drilling rig is mainly used for Workover service of 5500m(2 7/8" oil tubing) deep of oil and water well,drilling 1500m(4 1/2" DP) deep oil-water and coal seam gas well,also used for deep...
350HP workover rig 350HP workover rigXJ350 workover rig is mainly used for shallow well workover, oil testing, fishing and pump check operations. It is equipped with a lifting system and a rotary...
PRODUCT DESCRIPTION The XJ350 workover rig is our best designed and developed product. It perfectly couples Caterpillar enginer with allison transmission to provide a steady energy output and exc...
PRODUCT DESCRIPTION As the pioneer of research and manufacture on Live Well Workover Rig in China, Tonghua Petro Machinery just announced the brand new Live Well Workover Rig----5th Generation wi...
PRODUCT DESCRIPTIONAs one of the best designed and manufacturered products of our workover rig series along with 50 year history of workover rig manufacture history, XJ750 adopts a complete U.S standa...
PRODUCT DESCRIPTION The XJ350 workover rig is our best designed and developed product. It perfectly couples Caterpillar enginer with allison transmission to provide a steady energy output and...
PRODUCT DESCRIPTION XJ450 (80t) workover rig is capable of workover depth up to 4,500m and service depth up to 5,500m. Equipped with rotary table, swivel and drilling tools, it can also perf...
The slant-well workover rigs * This kind of workover rigs are designed and manufactured in accordance with API Spec Q14F7k8C and technical standards of RP500,GB3826.1GB3836.2 GB7258,SY5202 as w...
The automatic operation equipment for minor workover is mainly composed of a wellhead operation device, hydraulic elevator, pipe and rod transmission and arrangement device and electro-hydraulic control system.
The device adopts the structural form of dispersing the functional modules and integrated installation on the workover rig: with the hydraulic tong, manipulator and anti splash snap device set on the derrick of the workover rig, which can expand and rotate, and the safety slip is installed above the BOP.
The device only needs to install safety slips, which realizes rapid installation and migration and shortens the auxiliary working time. The device has the function of moving back and forth, left and right, which is convenient to align the wellhead. The height of the hydraulic tong is adjustable and can adapt to the wellhead with different heights. Hoisting equipment and special transport vehicles are not required for the installation and removal of the device.
The main electric control box can be installed on the operation vehicle or integrated into the modular wellhead operation device. The make-up torque of various oil pipes is set on the touch screen to realize automatic make-up and break-down. Equipped with video monitoring, process prompt, safety alarm, etc. The control system has a perfect action interlocking function to ensure the safety and reliability of the workover operation process. All of the electric cabinets, sensors, connectors meet the requirement of Explosion-proof on field.
Founded in 1969, RG Petro-Machinery Group Co., Ltd. is the manufacturing base of Chinese major technical equipment and fast move petroleum drilling rigs. At present, it has 12 subsidiaries with 9 production and supporting branches. Its main products include 12 series of more than 200 varieties, such as truck-mounted drilling rigs, skid-mounted drilling rigs, trailer-mounted drilling rigs, workover rigs, oilwell logging equipment, and integrated automatic well service equipment.RG Group has established a complete scientific and technical research and development system. It has academician workstation, post-doctoral scientific research workstation, and the National Petroleum Truck-mounted Equipment Standardization Work Department. It is responsible for hosting in drafting the national petroleum and petrochemical industry truck-mounted equipment standards. It has a nationally recognized enterprise technology center and metrology inspection laboratory, and has strong machinery fabrication and system integration capabilities. The company has passed ISO9001 and API Q1 international quality system and been authorized to use API 4F, 7K, and 8C monograms since 1990s.RG provides the oil and gas drilling equipment and all-round services according to the demands of the customers globally, including drilling services, equipment maintenance services, engineering services, inspection services, and equipment leasing etc. RG Petro-Machinery Group Co., Ltd. makes the great efforts to provide the first class equipment and services for the oil and gas industry of China and the world.
The power system on a drilling rig provides the power for the other main systems on the rig and other ancillary systems, such as electrical systems, pumps, etc. The system typically consists of a prime mover (the component of the power system that generates the raw power) and a means to transmit the raw power to the end-use components on the rig.
Historically, coal was used to generate the power for drilling rigs; however, modern drilling rigs use other sources of fuel. Typically, modern rigs are now run using an internal combustion engine with diesel or lease fuel. Diesel oil is a petroleum-based fuel that is a product of the distillation process. If the rig is running in a developed field, then the field may have a small on-site refinery that is used to distill the diesel fuel. If the rig is drilling an exploration, appraisal, or delineation well, then the fuel will need to be delivered from an external source and stored on-site.
Lease fuel is typically produced natural gas. As we have learned, natural gas is always produced along with crude oil. Again, if the rig is drilling wells in a developed field, then the field may use the natural gas or Natural Gas Liquids (NGL) to fuel the prime mover. This natural gas may be processed to remove NGLs if a gas plant is available on site; may need to burn these hydrocarbon liquids (possible sales product) if a gas plant is unavailable; or may burn the processed NGLs (butane).
In the mechanical transmission, power is generated with the prime mover and is transmitted to the end-use components by the application of chains and sprockets (similar to a bicycle), drive belts, drive shafts, etc. In a direct current (DC) electrical system, an internal combustion engine operates an electrical generator (in this case a DC generator) and the electrical energy is transmitted to the motors, electrical actuators, etc. Finally, in an alternating current (AC) electrical system, an internal combustion engine operates an electrical generator (in this case an AC generator) which is converted to DC with a silicon-controlled rectifier (SCR). AC-SCR power systems are the most widely used power systems on modern drilling rigs.
Mast Raising Lines, also called Bull Lines or Bridle Lines, are usually two pieces: each having sockets on both ends. These lines can be fabricated from either right regular lay rope or right lang lay rope. They must be fabricated from IWRC ropes. Use the chart to select grade. Refer to the product bulletin for more information concerning actual constructions.
Well Service | Workover Rigs - 844/80 Double drum draw works. looks to be recently rebuilt. Has new Lebus Grooving on Tubing Drum. Comes w/ 250 HP 2 speed jackshaft/RA BOX. More Info
Well Service | Workover Rigs - CARDWELL KB200B Freestanding Oilfield Workover Rig / Service Rig / Pulling Unit, Service Rigs, Used Cardwell KB200B Freestanding Service Rig, 5 Axle Carrier, Detroit 8V71... More Info
Well Service | Workover Rigs - WELL SERVICE RIG - COOPER 350 Well Service Unit p/b DETROIT 8V-92 Diesel Eng, ALLISON 750 Trans, 42X12-38x8 DRAWWORKS w/dual disc assist, 97â 200,000# Telescoping M... More Info
Well Service | Workover Rigs - CROWN 350 SERIES -- SERVICE KING 104" 205,000# DERRICK, CAT3406, ALLISON 5860,38X10 DOUBLE DRUM DRAWWORKS, CROWN SHEAVES REBUILT 2013 MAIN26âX4,SANDLINE 22â, NE... More Info
Well Service | Workover Rigs - 2008 Crown/Cabot 1058 Service unit mounted on 4 axle carrier w/Detroit 60 Power. New 5860 Drop Transmission. 72" Double rod/single tubing Derrickmast 125000# Rig is in Ex... More Info
Well Service | Workover Rigs - WELL SERVICE RIG - FRANKS 1287-160-DTD-HT D/D Well Service Unit p/b DETROIT 8V-71N Diesel Eng, ALLISON CBT-4460-1 Trans. SERVICE KING 96" 180,000# Hydraulically Raised & ... More Info
Well Service | Workover Rigs - FRANKS 300 D/D 1287 w/hydromatic brake, Well Service Unit p/b DETROIT 8V-71 Diesel Eng, ALLISON 750 Trans, (Reman Dec 2011) FRANKS 96âH 150,000# Tri-Scope Telescopin... More Info
Well Service | Workover Rigs - FRANKS 658 D/D Well Service Unit p/b CAT 3406 Diesel Eng, ALLISON HT-750 Trans, FRANKS 96âH 180,000# 4-Leg Telescoping Mast, Hydraulically Raised & Scoped w/4-Sheave... More Info
Well Service | Workover Rigs - FRANKS 658 D/D Well Service Unit p/b Series 60 Detroit Diesel Eng, ALLISON 5860 Trans, 102âH 225,000# (on 4 line) Telescoping Mast, Hydraulically Raised & Scoped, Db... More Info
Well Service | Workover Rigs - IDECO H35 96̢۪ 210,000 MAST, DETROIT 60 SERIES ENGINE, ALLISON 5860 TRANSMISSION, REFURB 2005, IDECO DERRICK REPLACED WITH NATIONAL DERRICK, TUBING DRUM CON... More Info
Well Service | Workover Rigs - IDECO RAMBLER H-35 Oilfield Workover Rig / Service Rig / Pulling Unit, Service Rigs, Used Ideco Rambler H-35 workover rig / service rig / pulling unit, 4 axle carrier, De... More Info
Well Service | Workover Rigs - 2015 INTERNATIONAL PAYSTAR 5900 Flushby Unit. C/w 2003, Refurbished in 2015, Western Fab Ltd. flushby unit, s/n 03-09-1008, 50 Ft. Mast height, 50,000 lb. pull rating, fr... More Info
Well Service | Workover Rigs - 2005 KENWORTH T800 Flusby Unit. C/w Lash Ent. flushby unit, 47 ft mast, slant compatible, 3x5 Gardner Denver triplex pump, 5000 psi, 2005 Advance 8m3 tank, TC 406 code, P... More Info
Well Service | Workover Rigs - 2003 KENWORTH T800 Flushby Unit. c/w Online flushby unit, 47 ft. mast, slant compatible, Pullmaster HL25 wotking winch, Pullmaster PL5 catline winch, 2002 wabash two comp... More Info
Well Service | Workover Rigs - 2005 KENWORTH T800B Flushby Unit. c/w Online flushby unit model 50-50, s/n 24641, 40 ft. mast,Salnt compatable, Pull master HL25 and PL5 winch, Gardner Denver 3x5 triplex... More Info
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• Hydraulic workover equipment is more portable than conventional equipment and can be set up and torn down easily. This aspect is important in offshore or other remote locations where transportation of heavy equipment is difficult.
• Hydraulic workover equipment is flexible. Lifting capacities can be made high and currently range to 340,000 pounds. It is possible to handle, pull, and run large OD downhole tools of moderate length under pressure. Rotary capabilities have been
Figure 15 shows a typical hydraulic workover rig on a land location. BOP rams are visible below the vertical hydraulic cylinders. Above the cylinders is a work platform on which is
At that point, the stationary slips are closed, holding the pipe in place. The travelling slips are released and lifted to their original position, then closed. When the travelling slips have
tubing work. This capability is the most recent extension of the hydraulic workover technique. As such, the scope of potential applicability is significantly broadened in both initial completion and workover activities.
The circulating system (pumps, tanks, lines, etc.) is the same as for other workovers with the exception of a one-way check valve installed in the bottom of the workstring or tubing.
The final part of this section deals with workover rig selection criteria. Typical workover operations are listed as keywords in the left-hand margin, and the different factors affecting
conventional rigs are preferred for a number of reasons. For drilling it is often necessary to use a high weight-on-bit in order to achieve reasonable penetration rates. This requires a
Concentric rigs are suitable for some light milling operations, however. In particular, they can be used to mill up very hard sand bridges that cannot be washed through. They are also
All three categories of rigs (conventional, concentric, and coiled tubing) can be used for squeeze cementing operations, although the first two types perform the vast majority of jobs
Concentric rigs can and do perform a large percentage of routine squeeze cementing operations, especially when an entire set of perforations are to be squeezed. For these applications a balanced-plug technique is used to spot the cement across the interval, then the workstring is pulled above the cement top and squeeze pressure is applied. An example of this procedure, covered in detail i “Remedial Cementing”, is shown in
cement is pumped down the workstring, through the channel, and back out above the packer. The cost savings over using a conventional rig can be significant.
of where a conventional rig would be used is where holes that can be sealed with cement develop in the production casing above the packer. There may be other times when
The kind of rig used for the recompletion depends on wellbore specifics. If the intended interval after the workover is above an existing retrievable packer then a
If the new completion interval is below the existing perforations, however, the option theoretically exists to recomplete using concentric techniques or a conventional rig.
The type of workover rig that is required for repair or replacement of downhole equipment depends on what downhole equipment is involved. If the equipment is suspended in the
For other repair/replacement operations, however, a conventional rig usually be required since retrieval of the entire completion string becomes necessary. Examples in this
often with the drilling rig. If performed at some later time in the well’s history, it is necessary to use a conventional workover rig to pull the tubing, run the screen and gravelpack packer, and re-run the completion.
The exception to this is the rare occasion when a gravel-pack is designed for a tubingless completion. In this case a concentric rig can be used to run the small diameter screen.
string approach are the cost of the rig and the chance of sticking the pipe in the hole if a leak develops while pumping the consolidation chemicals. In general, however, placement
Stimulation treatments are so varied that each of the general workover categories, bullhead, concentric, and conventional, can be the optimum solution. Each one of these is discussed
• Conventional – A conventional workover rig is primarily required when a well is to be fractured and the existing completion must first be pulled either because the tubing is
From a workover standpoint, low reservoir pressure presents a difficult situation. Stimulation is less effective than in a high-pressure reservoir because there is less pressure differential
to capitalize on the increased permeability. Perforating an additional interval is a temporary measure, at best, and may complicate future workovers. Installation of artificial lift
Water production problems can originate from the reservoir itself or from other sources such as casing leaks and primary cement failures. Water production is costly from both lifting and disposal standpoints. However, recovery from water-drive reservoirs requires a large influx of water into the reservoir, which may eventually necessitate producing considerable quantities of water from the reservoir before the economic limit for oil recovery is reached.
Gas production form an oil well result from a gas originally dissolved in the reservoir oil or from free gas that has segregated and become trapped above the oil as a gas cap. Free gas
In the dissolved-gas-drive reservoir, gas originally in the oil is liberated from solution as oil production begins and reservoir pressure declines. Further liberation and expansion of solution gas is requirement for primary oil recovery from a reservoir
gas production in this instance is usually not a well problem but a problem of the reservoir as a whole. Workovers are not generally successful at reducing the gas-oilratio for these wells.
When performing a workover to repair a mechanical failure, the engineer should study the well files to determine if other problems exist, which can be repaired at the same time.
A detailed cost survey will usually reveal that auxiliary rig tools and equipment cost approximately as much as the rental rate of the basic workover rig. Thus, as much attention should be given to the choice of auxiliary equipment as is given to the choice of workover technique and rig rate.
Contractors vary widely with respect to the tools and equipment furnished with the rig. An inventory of the equipment provided with a rig will make comparisons of hourly rig rates more meaningful. In addition, use of an inventory will ensure that all necessary equipment is on-hand and extra equipment is not ordered.
Some rigs include a swab line, which can reduce the cost of completion operations, if the rig is intentionally kept in place until the zone is evaluated. However, using a rig-provided swab line can be a disadvantage if using it means that the rig is
kept in place at workover-rig rates when it could be replaced by a lower-cost swabbing unit. In addition, keep in mind that swabbing is a specialized operation. The workover
cost of units rented from service companies. However, in some cases, the rig pumps may not have sufficient capacity and pressure rating to perform the necessaryoperations.
Workover rigs sometimes include tankage. The amount of tankage needed depends on the quantity of circulating and treating fluids needed for workover operations. The quantity of fluid which must be premixed and on-hand for well control
crews to operate for longer periods of time without fatigue. Proper utilization of this equipment can double the speed of tripping operations and thus save rig time.
In addition, company personnel at the rig site should be sure that the rig and service company personnel are aware of and observe the established safety rules. This can be facilitated by holding pre-job meetings to inform all on-site personnel of safety hazards, safety equipment location and use, and established safety rules.
Rigs are often chosen on the strength and capability of the equipment. In practice, personnel and supervision on a particular rig are often of equal importance to the equipment brought to the rig site. The number of men in the rig crew often dictates
Associated with this concept are the employment practices of a contractor during slack periods. Some contractors maintain key supervisors on a full-time basis but pay rig crews only when work is available. This can result in rig crews with low experience levels.
additional cost to the workover operation, enough back-up equipment should be on hand to plan for contingencies. When planning the workover, consider what could go wrong
– If the workover is postponed, what would the cost be? Would impending additional recovery programs render workover of this well more attractive in the future?
As discussed earlier in this Chapter (Subject 19.4), the choice of workover technique is sometimes limited by the capabilities and limitations of the workover rig units. For example, treatment operations, such as remedial cementing, matrix acidizing, and corrosion treatments, sometimes require that the treatment fluid selectively placed into a single zone or portion of a zone. While wireline and concentric techniques have some flexibility in this respect, use of a conventional workover rig allows use of the full casing ID and thus a wider range of downhole tools and packers can be used. On offshore locations, the compactness of wireline and concentric units is a premium. In addition, wireline units are the quickest and most efficient, thus reducing rig time, a major
Conventional rigs are slow and cumbersome; however, they are not as limited by factors such as operating depth, high bottom-hole temperatures and pressures, and severe I d restrictions. All of these factors must be considered before selecting a particular workover technique to perform the desired workover operation
The 844 TD-HD Workover Rig by Franks has a 3/4″ Tubing Line, Air Clutches and is powered by a Detroit Diesel 6V71 Motor & Allison CLT 4460 transmission. The 844 TD-HD Workover Rig is in excellent working condition, has a current OK Tag and clean Title.
Performance proven main drum draw works assemblies are modular construction for versatile rig assembly. Designed to allow maximum parts interchangeability and easy add-on features to customize this for your specific operation.
Just one mile west of I-75 and an hour northwest of Orlando, drillers have come to rely on the drill rig service team with double-digit years of hands-on experience servicing Geoprobe® and DRILLMAX® rigs for helpful answers or intensive rig fixes.
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In order to solve low degree of work over automation, labor-intensive job dangerous, poor working environment issues, Shengji has developed a series of mechanical work over system, including workover automatic system, minor workover automatic system and snubbing operation equipment.
Oil well workover is a high-tech, high-risk work. The conventional oilfield workover rig has problems such complicated operating procedures and high labor intensity. Shengji, in cooperation with the Shengli Drilling Corporation, have designed an oilfield workover rig automation system.
The oilfield automatic workover rig has a high degree of automation adopting modular integration and advanced robot closed-loop control technology. It functions as self-diagnosis, leakage and short circuit protection and fault alarming, etc. It has remote monitoring capability.
The automatic workover rig greatly increases the automation of workover operations, reduces the number of operators, decreases workers’ labor intensity. The technology is advanced, safe and reliable.
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