workover rig vs drilling rig factory

A service rig is a mobile platform loaded with oil industry service equipment that can be driven long distances within the oil fields to service wells.

There are several specialized types of service rigs: the carrier, the pumptruck, the doghouse, a 5-ton equipment truck and several crew vehicles. The rigs usually travel in a convoy, because all of the component rigs are needed for proper oil well servicing. The crew use the equipment on the rigs to provide a variety of services, including completions, work-overs, abandonment"s, well maintenance, high-pressure and critical sour-well work and re-entry preparation.

The Rig, or Carrier, is a mobile truck with a derrick and a cab for one driver. The carrier can also be trailer-mounted, enabling it to be towed behind a prime mover. Traditionally, trailer-mounted service rigs are much larger and heavier, with greater capacities.

Each service rig has a manager called a Toolpush, who orders and monitors supplies, monitors and records the progress of each job and schedules the crew"s time. At times there is also a representative present from the oil company whose wells are being serviced.

Service rig crew"s are often under the supervision of a Consultant who is contracted through said oil company and reviews safety and job tasks with the crew, and organizes the process of moving from each well and ensuring the

This article is about the onshore oil rig. For offshore oil rig, see Oil platform. For drilling tunnels, see Tunnel boring machine. For handheld drilling tool, see Drill.

A drilling rig is an integrated system that drills wells, such as oil or water wells, in the earth"s subsurface. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person and such are called augers. Drilling rigs can sample subsurface mineral deposits, test rock, soil and groundwater physical properties, and also can be used to install sub-surface fabrications, such as underground utilities, instrumentation, tunnels or wells. Drilling rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land or marine-based structures (such as oil platforms, commonly called "offshore oil rigs" even if they don"t contain a drilling rig). The term "rig" therefore generally refers to the complex equipment that is used to penetrate the surface of the Earth"s crust.

Small to medium-sized drilling rigs are mobile, such as those used in mineral exploration drilling, blast-hole, water wells and environmental investigations. Larger rigs are capable of drilling through thousands of metres of the Earth"s crust, using large "mud pumps" to circulate drilling mud (slurry) through the drill bit and up the casing annulus, for cooling and removing the "cuttings" while a well is drilled. Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or natural gas; and in remote locations there can be permanent living accommodation and catering for crews (which may be more than a hundred). Marine rigs may operate thousands of miles distant from the supply base with infrequent crew rotation or cycle.

Antique drilling rig now on display at Western History Museum in Lingle, Wyoming. It was used to drill many water wells in that area—many of those wells are still in use.

Until internal combustion engines were developed in the late 19th century, the main method for drilling rock was muscle power of man or animal. The technique of oil drilling through percussion or rotary drilling has its origins dating back to the ancient Chinese Han Dynasty in 100 BC, where percussion drilling was used to extract natural gas in the Sichuan province.Edwin Drake to drill Pennsylvania"s first oil well in 1859 using small steam engines to power the drilling process rather than by human muscle.Cable tool drilling was developed in ancient China and was used for drilling brine wells. The salt domes also held natural gas, which some wells produced and which was used for evaporation of the brine.

In the 1970s, outside of the oil and gas industry, roller bits using mud circulation were replaced by the first pneumatic reciprocating piston Reverse Circulation (RC) drills, and became essentially obsolete for most shallow drilling, and are now only used in certain situations where rocks preclude other methods. RC drilling proved much faster and more efficient, and continues to improve with better metallurgy, deriving harder, more durable bits, and compressors delivering higher air pressures at higher volumes, enabling deeper and faster penetration. Diamond drilling has remained essentially unchanged since its inception.

Oil and natural gas drilling rigs are used not only to identify geologic reservoirs, but also used to create holes that allow the extraction of oil or natural gas from those reservoirs. Primarily in onshore oil and gas fields once a well has been drilled, the drilling rig will be moved off of the well and a service rig (a smaller rig) that is purpose-built for completions will be moved on to the well to get the well on line.

Mining drilling rigs are used for two main purposes, exploration drilling which aims to identify the location and quality of a mineral, and production drilling, used in the production-cycle for mining. Drilling rigs used for rock blasting for surface mines vary in size dependent on the size of the hole desired, and is typically classified into smaller pre-split and larger production holes. Underground mining (hard rock) uses a variety of drill rigs dependent on the desired purpose, such as production, bolting, cabling, and tunnelling.

In early oil exploration, drilling rigs were semi-permanent in nature and the derricks were often built on site and left in place after the completion of the well. In more recent times drilling rigs are expensive custom-built machines that can be moved from well to well. Some light duty drilling rigs are like a mobile crane and are more usually used to drill water wells. Larger land rigs must be broken apart into sections and loads to move to a new place, a process which can often take weeks.

Small mobile drilling rigs are also used to drill or bore piles. Rigs can range from 100 short tons (91,000 kg) continuous flight auger (CFA) rigs to small air powered rigs used to drill holes in quarries, etc. These rigs use the same technology and equipment as the oil drilling rigs, just on a smaller scale.

The drilling mechanisms outlined below differ mechanically in terms of the machinery used, but also in terms of the method by which drill cuttings are removed from the cutting face of the drill and returned to surface.

An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry.Athabasca oil sands. According to the "Oil Patch Daily News", "Each rig will generate 50,000 man-hours of work during the construction phase and upon completion, each operating rig will directly and indirectly employ more than 100 workers." Compared to conventional drilling rigs", Ensign, an international oilfield services contractor based in Calgary, Alberta, that makes ADRs claims that they are "safer to operate, have "enhanced controls intelligence," "reduced environmental footprint, quick mobility and advanced communications between field and office."steam assisted gravity drainage (SAGD) applications was mobilized by Deer Creek Energy Limited, a Calgary-based oilsands company.

Baars, D.L.; Watney, W.L.; Steeples, D.W.; Brostuen, E.A (1989). Petroleum; a primer for Kansas (Educational Series, no. 7 ed.). Kansas Geological Survey. p. 40. Archived from the original on 8 November 2020. Retrieved 18 April 2011. After the cementing of the casing has been completed, the drilling rig, equipment, and materials are removed from the drill site. A smaller rig, known as a workover rig or completion rig, is moved over the well bore. The smaller rig is used for the remaining completion operations.

"Ensign Launches Newest And Most Powerful Automated ADR 1500S Pad Drill Rigs In Montney Play", New Tech Magazine, Calgary, Alberta, 21 November 2014, archived from the original on 10 December 2014, retrieved 6 December 2014

Rig means the vessel described in Recital (A) hereto and includes any share or interest therein and her engines, machinery, boats, tackle, outfit, spare gear, fuel, consumable or other stores, belongings and appurtenances whether on board or ashore and whether now owned or hereafter acquired (but excluding therefrom any leased equipment owned by third parties);

About products and suppliers:Alibaba.com offers 226 workover rig manufacturing products. About 49% % of these are oilfield drilling rig, 29%% are mine drilling rig.

A wide variety of workover rig manufacturing options are available to you, You can also choose from diesel, electric and gasoline workover rig manufacturing,As well as from energy & mining, construction works , and manufacturing plant. and whether workover rig manufacturing is unavailable, 2 years, or 6 months.

The workover rig is mainly used for the workover service of 3200m(2 7/8" DP) oil and water well. The design and making of rig stick to this principle that is safe,reliable,advanced,convenient and economical.

The land drilling market worldwide is structured primarily as a rental market, not a sales market, where land drilling companies lease their rigs to E&P companies for an agreed period of time – weeks, months, or years – at a day-rate. The rigs are then used to drill wells and execute the E&P’s drilling programs.

Drilling opportunities are analysed and explored in order, leaving a series of dry holes, until a discovery is made. It is rare for an E&P company to actually own the rigs which they operate, but there are some exceptions such as Chesapeake, who will purchase their own fleet of rigs.

Investors require a minimum level of return for their investment dollars in drilling operations, and typically equate cost with risk. These turnkey drilling contracts may limit risk by guaranteeing a minimum number of wells that can be drilled with the rig. The contract will also outline how the rig can be used – including the pieces of equipment, when to change pieces, temperature and pressure tolerances and the weight of mud.

The International Association of Drilling Contractors (IADC) lists 547 members in the category of Land Drilling Contractors. According to Statista, the key US land drilling contractors are: Nabors Industries Ltd, Helmerich & Payne Inc, Patterson-UTI Energy Inc, Precision Drilling Corporation and Pioneer Energy Services Corp.

Nabors operates the world’s largest land drilling rig fleet, with around 500 rigs operating in over 25 countries – in almost every significant O&G basin on the planet. It also has the largest number of high-specification rigs (including new AC rigs and refurbished SCR rigs) and custom rigs, built to withstand challenging conditions such as extreme cold, desert and many complex shale plays.

Headquartered in Tulsa, Oklahoma, H&P is a global business with land operations across the US, as well as offshore operations in the Gulf of Mexico. It is engaged primarily in the drilling of O&G wells for E&P companies, and recognised for its innovative FlexRig technology.

Patterson-UTI operates land based drilling rigs, primarily in O&G producing regions of the continental US, and western Canada. The company also provides pressure pumping services to US E&P companies and specialist technology, notably pipe handling components, to drilling contractors globally.

Precision is an oilfield services company and Canada’s largest drilling rig contractor, with over 240 rigs in operation worldwide. The Company has two segments. The Contract Drilling Services segment operates its rigs in Canada, the United States and internationally. The Completion and Production Services segment provides completion and workover services and ancillary services to O&G E&P companies in Canada and the US.

Pioneer operates a modern fleet of more than 24 top performing drilling rigs throughout onshore O&G producing regions of the US and Colombia. The company also offers production services include well servicing, wireline, and coiled tubing services – supported by 100 well-servicing rigs, and more than 100 cased-hole, open-hole and offshore wireline units.

Together these five companies dominate the US rental market. Other smaller but prominent contractors include: Parker Drilling, Unit Corp, Independence Contract Drilling, Seventy Seven Energy, Schramm and Ensign Drilling. Beyond these players, the market is highly fractured, with many “mom & pop” style drillers.

In Texas, generally considered to be the centre of US land drilling, RigData reports that there are currently 678 active rigs – split between Helmerich & Payne (160), Patterson-UTI (85), Nabors (64), Precision Drilling (39) and 77 other drillers (330).

Most new onshore rigs, both drilling and work over rigs, are built by OEMs in China. In the US, the larger vertically integrated land drillers have in-house manufacturing operations, so they will outsource some equipment construction, but assemble the new rigs at their own facilities. The leading provider of US newbuild rigs is National Oilwell Varco.

The secondary market, where existing rigs are sold, is largely auction dominated with mostly older rigs changing hands. As a rule, the big land drillers do not sell their newbuild rigs, as each has their own flagship designs.

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The international oil and natural gas industry as well as the international water drilling industry demand permanent further development. This results in a high performance level of drilling equipment. The essential factor "time" and an optimal handling become more and more important.

For that reason our mobile rigs are characterised by their reliability, long service and low operating costs. The rigs are designed to allow an easy handling and short rig-up and rig-down sequences.

The mobile drilling rigs of VB Series are designed hydraulic driven; electrical driven units could be designed optionally. Of course we provide you with the relevant drilling accessories for special applications.

STREICHER mobile drilling rigs can be utilised for both work over, conventional drilling and well servicing. The mobile drilling rigs of MD Series are designed as trailer or self propelled full mechanical drilling rigs. Alternatively, hydraulic and electrical driven rigs can be offered as well.

If you’re looking for the best oil drilling equipment — like high-quality roll off containers, drilling rig systems, or tanks and pumps — then you won’t regret buying American. In the past few decades, millions of U.S. manufacturing jobs have moved overseas, and those proud “Made in America” labels have become rarer and rarer with each passing year. And sometimes, it’s not always clear what buying American even means.

In addition to the men and women working those rigs in North Dakota, Texas, Kansas, and beyond, there are the American industrial equipment manufacturers who supply them. And we feel confident in saying no one knows how to drill quite like Americans.

Plus, when you buy drilling equipment, heavy duty trailers and rigs, and tanks and pumps from U.S. companies, you can count on experience that’s hard to find anywhere else. What are some of the benefits of buying American?The best customer support in the world to back up the equipment you purchase. That means in-house American engineers and know-how, as well as good old fashioned American customer support working for your team.

As certain political elements oppose drilling and fracking with vague concerns, it’s more important than ever for U.S. oil and gas companies to support each other, creating jobs, wealth, and fuel that benefit everyone. Most importantly, there’s a reason America has been a world leader in the oil and gas industry, and will be for decades to come.

Based on our extensive experience in the design of land rigs and special vehicles, Sovonex™ truck-mounted drilling rigs are a prime example of advanced engineering.

When drilling on impassable terrain or in remote areas, our truck-mounted drilling rigs’ excellent off-road capability and mobility can make the difference between a drilling operation being commercially feasible or not.

With our extensive experience in the manufacturing of skid-mounted rigs and oilfield vehicles, we are able to design each Sovonex™ mobile rig to individual customer requirements.

Your mobile 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

A key advantage of our truck-mounted rigs is their uniquely constructed chassis. Designed for extreme stability and with a small turn cycle, they give the rigs the power and mobility required for driving on impassable terrains.

Customers can choose between different types of suspensions, including single wheel independent suspension. A mobile rig with independent suspension is especially advantageous when driving in inaccessible mountain regions.

At our production facility in China we manufacture the complete range truck-mounted and trailer mounted drilling rigs capable of drilling wells from 1000m to 4000m. Below you will find a detailed description for each of these rigs.

This 4000m truck-mounted rig with a power of 1000 hp is the most powerful among our mobile rig and often employed in geothermal drilling operations in remote mountain regions.

The specially designed chassis is optionally available with independent suspension on every wheel, giving it superior driving characteristics on rough and extremely muddy terrain.Drilling depth (4-1/2” DP): 4,000 m (13,000 ft)

We do manufacture both truck-mounted and trailer-mounted drilling rigs. While truck-mounted rigs are more compact and easier to handle in rough terrain, the truck of a trailer-mounted rig can be used for other purposes during drilling operations.

The 4000 m mobile rig can optionally be equipped with a top drive system. We provide repair and maintenance services for all major top drive manufacturers like Varco, Canrig, Tesco, BPM, MH, and Bomco

With every drilling rig we send technical staff to the drill site to provide first hand technical support. The engineer responsible for the design of the rig is always part of the service crew.

For your convenience, here is a summary of the benefits of our truck-mounted drilling rigs we consider the most important:Production quality standard API Q1 and ISO 9001

High quality cost-effective diesel drilling onshore large load workover rig,The rig structure is compact and well designed, highly integrated, and optimized to save working space. The power system is a hydraulic+ mechanical type with high comprehensive efficiency. A class II or self-propelled type chassis can be adopted to meet the various requirements of the end-users.