workover rig components pdf pricelist

Workover Rig is available for both onshore as well as offshore Workover purposes at affordable prices. There are a number of companies that manufacture the Workover Rig as well as Rig packages that are required for different kinds of drilling jobs and meet the standards that have been set by the American Petroleum Institute or the API. The Rig packages are shipped worldwide. The rigs are included other than the simple Workover and they include the following:

Workover Rig is known as the Workover the different types of rigs include the offshore and onshore Rig that range from 150 horsepower to 1000 horsepower. Workover rigs have a surface depth that is equipped with diesel engines and transmissions and is available from 8000 ft to 30000 ft. Workover rigs contain a full line of drilling packages. Rig takes into account the skid mounted drilling rigs and the ones that are trailer mounted. Workover skid mounted drilling rigs incorporate the diesel-electric AC/VFD or the DC/SCR drive rigs, mechanical drive rigs and the combination drive Rig that ranges from 1000 horsepower to 6000 horsepower; while the trailer mounted Rig ranges from 450 horsepower to 1000 horsepower.

A lot of Workover Rig uses the double telescopic mast with the help of a single mast and is operated by wide wheel base axels, high strength steel beam, low cross section tires, dual pipeline brakes as well as hydraulic assist steering for the Workover. Rig mast is a double section type and uses a telescopic mast for dual safety protection. The gear shift and throttle of the engine can be remote controlled.

Workover types of Rig are available in the form of the single drum as well as the double drum. The groove ensures the alignment of in place as well as for long life. The optional Workover accessories for the auxiliary brakes include air thrust disc type clutch, brakes for the braking of the main drum, forced water circulating cooling with the brake rims as well as the optional brakes. Workover rigs are centrally controlled with electricity. The other kinds of drilling equipment include drilling equipment, triplex mud pumps, well control equipment; solids control equipment, oil control tubular goods and quality equipment. Work over rigs run casing tools and clean outs inside and outside a hole already drilled.

To ensure our website performs well for all users, the SEC monitors the frequency of requests for SEC.gov content to ensure automated searches do not impact the ability of others to access SEC.gov content. We reserve the right to block IP addresses that submit excessive requests. Current guidelines limit users to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests.

Oil rig equipment is expensive due to the size and operations carried out by such large machinery. Purchasing a newly constructed drill rig is a huge investment.

As such, you’ll want to be sure you have the right expectations before you begin searching for one to complete your assignment. This article will discuss just what a drill rig does and the estimated costs involved in the drilling process.

When you need a machine powerful enough to bore through the earth’s crust to retrieve minerals, gas, or any other natural resources, a drill rig will get the job done. Each rig is designed for the environment they’re operating in and the product being extracted. Those two factors greatly affect the cost of the rig you’re looking to purchase.

A standard land rig with 1,500 to 1,700 horsepower will cost between $14 million and $25 million to own. An offshore oil rig cost is much higher, starting at $20 million and going as high as $1 billion. Owning your drill rig will save you money in the long run, especially when considering the daily cost of operations.

Your daily rate depends on the rig type, distance from shore, drilling depth, and water depth. Onshore drilling rates range from $200,000 to $310,000 each day. Offshore drilling can cost between $600,000 to $800,000 per day.

Several factors impact the oil rig cost, including construction, including materials, market conditions, equipment prices, and more. We’ll cover the basics, so you have a realistic expectation when searching for a rig price.

Cost and demand go hand-in-hand. When there is a high demand for building new rigs, the cost rises because a limited number of shipyards can provide the service.

For example, in the early 2000s, there wasn’t a demand for new rig construction, so rates were low. In the mid-2000s, demand increased, and prices rose, but after the 2008 recession, demand decreased. But the prices didn’t drop significantly as the recession wasn’t expected to last long.

The materials used in making a drill rig are a key component in construction costs. The material used most, steel, comes in various strengths, and the stronger the steel, the higher it’s priced. When steel prices are low, rigs will be cheaper to produce; when steel prices rise, so do the costs of the rigs.

The cost of additional services needed for constructing wells will begin to add up. Phone bills and fees for transferring data are part of your communication cost. For those working offshore, rig positioning will be another fee.

There are two types of oil rigs, jackups, and floaters. Floaters aren’t attached to or resting on the seafloor. Jackups have support legs that allow the rig to be raised or lowered. Each type has different equipment to assist with the drilling process.

The engines, generators, cranes, and other oil rig components are purchased from a third party and assembled by the rig builder. Non-drilling related equipment is about 30% to 60% of the total cost.

Since most of the parts used are made from steel, the fluctuations in the steel market will influence the rig’s price. Demand for the additional equipment to fit on the rig will also play a part in costs.

Where your rig is built impacts the labor costs, which affect the price of the drill rig. It’s estimated that labor is 10% to 15% of the total cost of the rig is built internationally. While the U.S. and Korea have similar costs, Singapore charges three times less.

Each dollar spent on labor in the U.S. generates $3 in revenue, while in Singapore and South Korea, every dollar generates $7 to $10 in revenue. Since labor costs are typically lower internationally, the cost of your rig won’t be as high.

Always expect and prepare for the unexpected by setting aside a portion of the budget for allowances. Once you start drilling, you can’t be sure what you’re going to find, and variances in the geological structure could require different equipment and delay the process. Both of these instances will increase the cost of the rig being used.

The drilling depth and well complexity are primary cost influencers. Once the drill rig is moved into position, it can take a team of 30 to 40 companies to complete the process. Costs can easily top $4 million during the drilling phase and take about three weeks to finish.

Positioning drilling rigs isn’t an easy task. It takes 3 to 5 days to move in and assemble a rig for well digging. Once the job is complete, the rig has to be disassembled and moved again. Rates hover between $100,000 and $350,000 depending on how far the rig is being transported.

The oil industry is very lucrative, and the machines used to drill for the resource are not cheap. Oil rigs are heavy-duty machines needed to reach extreme depths.

The harsh environments they’re in demand that they are built with the best materials available. If you need a drill rig, it’s important to keep in mind all the factors that contribute to the cost of the equipment so you can budget correctly.

Independent producers and operators ramping up shale exploration and development programs are pushing the limits of conventional drilling equipment. Whether they are drilling multiple long-lateral horizontal wells from single pads, testing new bits and mud motors to boost penetration rates, or deploying next-generation rig floor and automation systems to slash “spud to sales” times, independents and their service company partners continue to find ways to improve resource play economics and crack the unconventional drilling frontier wide open.

Goodrich Petroleum is a case in point. Over the past two years, the company has transitioned from vertical Cotton Valley wells to horizontal wells in the Cotton Valley and the underlying Haynesville Shale. To unlock the shale’s vast potential, the company worked with its partners and service providers to discover the right casing points and to choose bottom hole assemblies that could build at sufficient rates to maximize lateral lengths, reports Clarke Denney, the company’s vice president of drilling. He notes that in the Haynesville Shale, Goodrich is utilizing robust directional equipment and mud cooling units to drill laterals at vertical depths of 15,000 feet, where circulating temperatures can reach upward of 340 degrees Fahrenheit.

Drilling wells in either play requires rigs with the right equipment, says Denney. He says top drives are important because they allow pumping and rotating the drill string while coming out of the hole, which is necessary at times for hole cleaning. This reduces drag and the chance of getting stuck. Top drives also maximize directional drilling performance.

Drawworks that can deliver at least 1,500 horsepower are also key, Denney adds. “We believe in high horsepower,” he stresses. “A 1,500-horsepower rig carries a premium over a 1,000-horsepower rig, but it speeds trips and puts less strain on the equipment. We get our money’s worth.”

Just as important as the drawworks and top drive is having powerful mud pumps on the rig, Denney says. “In the Eagle Ford, we would prefer to have at least 1,600-horsepower pumps, especially when drilling long laterals,” he relates. “That horsepower is needed for mud hydraulics to keep the hole clean, and to drive the downhole motor and other equipment. We have achieved up to 6,000-foot laterals to date, and we are targeting 9,000-foot long laterals in the near future.”

In many cases, it makes sense for the rig to have the ability to skid, Denney says. He explains that drilling multiple horizontal well bores on one pad reduces construction costs and rig transit times. “In the Eagle Ford, if we can skid, our drilling costs can be reduced as much as $500,000 a well,” he says.

Goodrich Petroleum is far from the only company that needs “high-spec” rigs with powerful top drives, hoisting systems and pumps. According to industry sources, rigs with larger (+1,000) horsepower ratings account for an estimated 60 percent of the active rig fleet. Moreover, rigs with at least 1,000 horsepower account for nine of every 10 rigs that are under construction or planned for the near future.

With its operational focus transitioning from the Cotton Valley trend to the Haynesville Shale, and more recently to the Eagle Ford Shale, Goodrich Petroleum is achieving consistent production and reserve growth through horizontal drilling with high-spec land rigs and advanced downhole tools. Even during the economic recession of 2009, the company increased average net daily production 24 percent and proved reserves 5 percent. Over the past four years, it has more than doubled its daily production while expanding its reserves 30 percent.

Trent Latshaw, the founder and head of Latshaw Drilling in Tulsa, can verify that the demand for 1,000-2,000 horsepower rigs is high. He says the company’s fleet, which includes 15 rigs within that range, has 100 percent utilization. In fact, Latshaw reports that the only unused rig his company has on the books is a new, 1,700-horsepower diesel electric that is still under construction.

Many of today’s high-spec rigs have closed-loop mud systems, Latshaw notes. “Closed-loop mud systems do away with the need for a reserve pit,” he says. “The systems also processes drilling fluid more efficiently. They are able to take more solids from the drilling fluid, which enables more fluid to be reused and makes the solids dryer and easier to dispose of. That becomes very important when dealing with oil-based mud, which often is used in horizontal wells.”

Latshaw encourages operators to consider using high-horsepower rigs when the class they want is difficult to obtain. “We consider our 2,000-horsepower rig to be identical to our 1,500-horsepower rigs, except for the drawworks size and the mast/substructure capacity,” he says. “The 2,000-horsepower rigs have the same footprint and move as fast as the 1,500-horsepower units, and for all practical purposes, the day rates are the same.”

He also says diesel-electric SCR rigs are comparable to AC rigs. “They have the same top drives, the same mud pumps, the same mud systems, the same engines, and the same blowout preventers,” he reports. “From the customers’ perspective, they drill wells as fast as AC rigs.”

In reference to safety, Latshaw says people matter more than technology. “You can try to design a piece of equipment that is accident proof, but safety comes down to the people on the rig floor and what their mindsets are,” he insists. “We are putting more money into training, beefing up our safety department, and having more safety coaches go around the rigs to work with the hands.”

He points out that many rigs, including several of Latshaw Drilling’s units, use automated iron roughnecks to improve safety. “Those are expensive, high-maintenance pieces of equipment,” he says. “We decided to take some of them off our rigs, then track closely to see if we had more finger and hand accidents on the rigs using manual tongs and a drill pipe spinner versus the rigs that had iron roughnecks. We have not seen a difference.”

For Joe Hudson, the president of Nabors Drilling USA, the future looks bright. “We have at least 103 AC rigs deployed at this point,” he reports. “We are in the process of building 25 more, and we always are looking for opportunities to expand further, be it in the Bakken, the Mid-Continent, West Texas, the Eagle Ford, or the Marcellus.”

Hudson says the new rigs include larger pumps, AC top drives, and tubular handling tools such as automatic catwalks and floor wrenches. “With the automatic catwalk, there is no need for a rig hand to pick pipe off the catwalks, pull it up with a hoist, and drag it to the rig floor,” he says. “Instead, the catwalk picks up pipe and elevates it to the rig floor. No one is touching the pipe or rolling pipe onto the catwalk, which keeps people away from tubulars, reducing the risk of pinch-point injuries.”

The rigs also employ advanced software. “With conventional rigs, the driller would drill ahead with a hand on the brake handle. He had only basic drilling information available to him, and his skill and his experience with the area dictated his ability to drill the well,” Hudson recalls. “Today, the software associated with smart drilling systems allows him to drill the well with a better understanding of the factors that influence drilling performance, such as delta P, hydraulic horsepower, weight on bit and rate of penetration. That translates to a faster rate of penetration.”

To ensure that its employees work as safely and efficiently as possible, Nabors has fully functional training rigs in Williston, N.D., Casper, Wy., and Tyler, Tx., where it trains personnel with no previous experience, Hudson reports. He adds that the company carefully defines the training and competency individuals need to be promoted.

The newest generation of high-spec land rigs purpose-built for horizontal drilling in unconventional resource plays features integrated subsystems to automate key processes such as pipe handling. Automated catwalks and floor wrenches not only increase operating efficiency, but also improve rig floor safety and extend pipe longevity by reducing handling damage.

When downturns do occur, Nabors tries to keep competent people and trainers on staff, Hudson says. By doing so during the last economic downturn, he says the company managed to go from 92 rigs in fall 2009 to 190 rigs today without compromising its personnel or safety standards.

Regardless of the market condition, Hudson says it is vital to design rigs for specific areas. “Every area is unique,” he says. “Carrying the top drive in the mast is a great way to reduce the number of loads needed, but in areas where road weights are critical, other approaches have to be adopted.”

To illustrate regional developments, Hudson points to Nabors’ B-series rigs, which were designed to accommodate pad drilling in the Bakken Shale. “We built a box-on-box substructure because we can close in that substructure, which makes it easier to winterize,” Hudson says. “Also, the way we can rotate the substructure lets the company conduct completion and production-related operations on one well while we are drilling another on the same location.”

Dealing with cold weather is also important, he observes. “We protect the rig floor from wind by putting the dog house and wind walls around it, then put heaters on the floor,” he says.

Like other contractors, Cyclone is expanding its fleet. “We built five rigs in 2010 and we are scheduled to build four more in 2011,” Hladky details. “They all have 1,600-horsepower pumps, with 270- and 500-ton AC top drives.”

Hladky says Cyclone tries to keep the rigs’ designs simple. “We engineer all the rigs similarly,” he adds. “Even if they are different sizes or different applications, the basics are all the same. That lets employees move from rig to rig efficiently and safely.”

Like the other drilling contractors, Hladky stresses the importance of good people. “A high-spec rig is nothing without good people,” he declares. “We are drilling with mechanical rigs built in the 1980s and 1990s with good people right next to and as efficiently as high-spec rigs.

Cyclone skids its rigs with hydraulic feet rather than rails because rigs can get slightly off target each time they move from one well to the next. “If you are on a rail system, the error is difficult to deal with. A walking rig can move in any direction needed to position exactly over the well bore,” he says.

“We started looking at these pads primarily from a surface usage viewpoint,” Cox says. “Since the terrain in North Dakota can be difficult, we wanted to reduce the number of pads, handling facilities, power lines, and pipelines we had to build. As we dug into the process, we began to ask if we would save any money beyond the cost of building the location and moving the rigs. The batch process provided the cost savings that gave us the impetus to keep working on the project.”

To explain the process’s economic and environmental benefits to investors, Continental dubbed it ECO-Pad® and produced a video, which is now available on its website. “It’s been amazing how many people have watched the video and asked to show it to others,” says Brian Engel, Continental’s vice president of public affairs. “The walking rig is something almost no one has seen before, especially in the investor community.”

As drilling contractors build their fleets and train employees, equipment manufacturers are coming up with better ways to design and manufacture components. These include downhole motor manufacturers. “We are dedicating significant resources toward boosting overall motor performance, with specific focus on increased power and equipment reliability,” says Mpact Downhole Motors Vice President David Stuart.

To maximize reliability, Stuart says manufacturers are designing downhole motors that can operate under increasingly higher loads. In addition, they must ensure motors are designed to be compatible with ever-changing drilling conditions. “Drilling motors have to be designed and calibrated for each specific application to compensate for changes in temperature and other downhole conditions, which will cause the components to expand and contract during drilling,” Stuart remarks.

The ideal operating range varies with motor sizes and configurations, Stuart says. “Experience goes a long way in determining the right range, and it comes not only from the drilling motor provider, but also from the service companies and operators. Collaboration among the three is important for efficient drilling operations,” he advises.

Drilling contractors are expanding their fleets to accommodate growing demand for high-horsepower land rigs equipped with powerful mud pumps, heavy-duty drawworks, closed-loop mud systems, automated rig floor equipment and ‘smart’ data management systems. As with this 1,500-horsepower electric rig, these new high-spec units often are fitted with top drives to rotate the drill string to optimize drilling efficiency and reduce the chance of pipe sticking while coming out of long horizontal laterals.

“Getting hydration right can be tricky,” Anderson says. “The coagulants and flocculants typically used to dewater drilling fluid have long, fragile chains, so they are sensitive to high mechanical shear forces and temperatures. Low pressure is also a concern; it increases residence times.”

Latshaw Drilling’s Trent Latshaw says improvements in rig designs, downhole motors, and fluids handling equipment are only a small part of a larger effort to improve drilling efficiency. “Polychrystalline diamond compact bits, measurement-while-drilling tools and rotary steerables will continue to be major drivers,” he predicts.

You have the requirements, we have the rig. At our production base in China we design and develop oil, gas, and geothermal drilling rigs for drill depths ranging from 3,000 m to 9,000 m (3,000 ft-30,000 ft)—including special-purpose rigs such as our fast moving land rigs and deep temperature rigs.

Our extensive experience in the industry allows us build some of the most technologically advanced drilling rigs on the market and we regularly have new and refurbished drilling rigs for sale that can ship immediately.

A drilling rig is only as good as the components it is made of. As we manufacture most major rig components ourselves in China, we are in full of control of the quality of each part.

Production strictly conforms to API Q1 quality management requirements. Each rig component is manufactured according to its respective API standard, giving our skid mounted drilling rigs an excellent track record of consistent high quality.

All steel components are painted to shipbuilding standards and are completely coated with several layers of marine paint. This surface protection ensures perfect operation in humid and other corrosive environments.

Sovonex™ land rigs are turn-key rig packages that include all supporting rig systems such as the solid control and electronic control system. Several advanced mast and substructure designs are available to meet different drilling operation requirements.

Your drilling rig can be 100% made in China, or you can choose rig components from distinguished international suppliers as you like. By default, the following rig components are imported:Main diesel engines: Caterpillar

With every drilling rig we send technical staff to the drill site to provide first hand technical support. The engineer responsible for the rig is always part of the service crew. On-site training instructions include:Rig up

With a static hook load of 1,700 kN, our 750 hp land rig is equipped to reach a drill depth of 3000 m (9,840 ft) using 4-1/2” drill pipe. The maximum drill depth with a 5” drill string is 2500 m or 8200 ft.

Equipped with a 1000 hp drawworks and three 1,632 hp (1,200 kW) diesel engines from Caterpillar, our 1000 hp drill rig is your ideal choice for drilling depths of up to 4000 m (13200 ft).

With a maximum drilling depth of 5000 m (16400 ft), the 1500 hp rig is the most popular skid-mounted drilling rig. Powered by four 1,632 hp (1,200 kW) Caterpillar engines and equipped with two 2 × 1600 hp (1180 kW) mud pumps, a Sovonex™ 1500 hp drilling rig is well suited for a wide range of drilling operations.

With a static hook load of 4500 kN, our 2000 hp oil & gas drilling rig is idally suited for drilling medium to deep wells of up to 7000 m (23000 ft). Four powerful Caterpillar engines (1,632 hp/1,200 kW) and three 3 × 1600 hp (1180 kW) make sure your drilling operations are going smoothly.

Our 3000 hp electric drilling rig (either DC SCR or AC VFD) is specifically designed for deep well drilling operations of up to 9,000 m or 30,000 feet.

Special requirements require special solutions. At Elegant Technology we developed several special purpose drilling rigs that provide unique advantages in their designated area of operations:

The complete rig is mounted to a platform on wheels that can be moved by a track. No rig down necessary, the rig stays in ‘drill-ready’ mode all the time. Time needed for moving the rig and starting drilling the new well normally is only 24 hours.

Manufactured from low-temperature steel with thermal protection for all major equipment and the drilling crew, our fully winterized arctic drilling rig is ideally suited for operation in deep temperature environments. Mounted on a rail track for efficient drilling of cluster wells.