workover rig equipment made in china

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Their exceptional mobility, stability, and ease of operation are the outcome of our extensive experience in the design and production of mobile drilling rigs.

Belonging to the same family, Sovonex™ service rigs comprise many of the technological advantages that result in smooth operation and make the life of our customers’ easier:

Wide selection: At our production facility in China we design and develop workover rigs for service depths ranging from 1,600 m to 8,500 m (5,250 ft-27,900 ft), and workover depths from 2,000 m to 9,000 m (6,600 ft-30,000 ft) for 2 7/8” DP.

Full API coverage: The different components of our well-servicing rigs are manufactured to the following API standards:Steel structures, such as the mast: API Spec 4F

Highly maneuverable : Sovonex™ mobile drilling rigs and self-propelled workover rigs possess excellent driving properties in the desert, mountain, and other impassable terrains.

Reduced NPT: The mast is erected hydraulically to reduce time for rig up and increase safety. Likewise, all rig components have been designed to allow for fast assembly and disassembly.

With every service rig, we send technical staff to our customer to provide first-hand technical support. The engineer responsible for the rig design is always part of the service crew.

Main Features Name: traveling hook Brand: KH Original: China Domestic famous fluid end, strong driving force, low fuel consumption, high economic benefits. Machine Parts Name: derrick platform Brand: KH Original: China Domestic famous, strong driving force, low fuel consumption, high economic benefits. After-Sales Service * Training how to instal the machine, training how to use the machine.

Main Features Name: traveling hook Brand: KH Original: China Domestic famous fluid end, strong driving force, low fuel consumption, high economic benefits. Machine Parts Name: derrick platform Brand: KH Original: China Domestic famous, strong driving force, low fuel consumption, high economic benefits. After-Sales Service * Training how to instal the machine, training how to use the machine.

As a China top oil drilling rig solids control system manufacturer: GN Solids Control now list the top 10 oil drilling rig manufacturers for your reference.

equipment in China, is the earliest established, largest and most powerful oil drilling rig and production equipment developer and manufacturer under CNPC, the largest research and production base of land rigs and series mud pumps in the world, and also the largest and most powerful base for R&D and production of wire ropes for special purposes in China.

Lanzhou LS-National Oilwell Petroleum Engineering Co. Ltd. (LS-NOW for short) is a Sino-American Joint Venture established between Lanzhou Petrochemical Machinery Equipment and Engineering Group Corporation (LS Group) and National Oilwell International, Inc. (NOI). Scope of business: design, develop and manufacture complete land and offshore drilling rigs and workover rigs, and provide equipment package, components, fittings, parts and full services.

Main products: serial drilling rigs that are electrical or mechanical or electrical-mechanical compounded driven and suitable for different applications such as land, shallow, offshore and desert and meet the requirements of drilling and workover services. The drilling depth ranged from 1000 to 9000 meters.

Sichuan Honghua Petroleum Equipment Co., Ltd., established in 1997, is a subsidiary of Honghua Group which has been listed successfully in the Stock Exchange of Hong Kong. The company has been engaged in research, design, manufacturing and general assembly of oil drilling rig and equipments for oil exploration and development. Now it is the world’s second land drilling rig manufacturer, and China ‘s largest exporter of drilling rigs.

The company owns five subsidiaries totally in home and abroad, with 3600 employees. Company headquarter is located in Deyang City, Sichuan, a heavy-duty equipment base in China, which covers an area of about 1,000 mus, and with more than 2,200 employees, annual output of 150 drilling rigs and 600 mud pumps etc. Its production capacity is up to 8 billion RMB production scale.

The company produces mainly various land drilling rigs for drilling 1000m to 9000m wells and offshore drilling modules– DC drive drilling rig, AC VF electric rig, mechanical drilling rig, composite drive rig, trailer mounted rig and independent RT electric drive drilling rig, as well as their matched equipments, i.e. drilling pumps, traveling block system, solid control system, electric control system etc.

RG PETRO-MACHINERY (GROUP) CO. LTD is one of the largest manufacturers for petroleum drilling rig equipment in China. It is a stock company, reorganized from Nanyang petroleum machinery plant (former No.2 Petroleum Machinery Manufacturing Plant of National Petroleum Industrial Ministry of China). As a former national technical equipment production base, authorized by former national economic and commercial committee of China, RG PETRO-MACHINERY (GROUP) CO. LTD has become a company for national new product trial production of China, light-duty drilling rigs production base of SINOPEC and a high-tech enterprise in Henan Province.

RG PETRO-MACHINERY (GROUP) CO. LTD, with its technical center, information center and quality inspection center at provincial level, has possessed 16 production plants for forging, metal machining, heat treatment, steel-structure manufacturing, general assembly, painting and new product trial production, and 3 comprehensive testing sites for drilling rigs as well as 2 Sino-American joint ventures and 2 share-holding joint ventures.

SJ Petroleum Machinery Co. , one of petroleum drilling  rig and production equipment backbone manufacturers and Manufacturing Base for National Key Equipment (Workover, Cementing and Fracturing Equipment) recognized by National Economy and Trade Commission, has provided lots of advanced equipment to domestic customers in lieu of expensive imported equipment, and played an important role in increasing profits of petroleum industry and decreasing domestic oilfield development cost.

Our company Shandong Kerui Holding Group is located in Shengli Oilfield the second largest oilfield in China. Our company arranges a wide range of businesses covering the scientific research and manufacture of the petroleum drilling equipment and oilfield engineering technical service. The main products manufactured and supplied include drilling equipment, Oil pumping equipment, Special equipment for oilfield, Oilfield tubing system and auxiliary machines and tools. We can manufacture various workover rigs and drilling rigs with drill depth from 3000m to 9000m. All products meet API standard. Our company has been granted API Certificate, ISO 9001: 2000 Quality System Certificate, HSE Certificate, and also got International Petroleum Engineering Management qualification certificate issued by the Ministry of Commerce of China.

The main products manufactured and supplied include oil drilling rig equipment, Oil pumping equipment, Special equipment for oilfield, Oilfield tubing system and auxiliary machines and tools. We can manufacture various workover rigs and drilling rigs with drill depth from 3000m to 9000m. All products meet API standard. Our company has been granted API Certificate, ISO 9001: 2000 Quality System Certificate, HSE Certificate, and also got International Petroleum Engineering Management qualification certificate issued by the Ministry of Commerce of China

(shanghai) petroleum equipment co., ltd. is established on august 2001. the 3h is the first rig manufacturer that introduces ship-building technology to the fabrication of petroleum equipment.

Shengli Oilfield Highland Petroleum Equipment Co., Ltd Established in 1992 was a private incorporated manufacturer of petroleum equipments located in Dongying city, Shandong province, the PRC. Through many years development, the company had been recognized and become well-known in petroleum industry achieved the superior position in the field of scale, product quality, technology ensuring and selling service and so on in petroleum equipment manufacturing in China. It possesses 3.5 billion RMB of total assets, owns more than 1,980 thousand square meters of plant area, China’s state-approved high-tech enterprise, China’s patent star enterprise, Shandong Province top 100 and excellent enterprise, Shandong Province unique petroleum equipment R & D center and over 370 engineers and technicians and 150 contracted noted specialists in ceeusro field.

Drilling Rig: Highland Company Drilling Rig Plant has advanced key facilities and assembly workshops for manufacturing rigs and it has enough test sites for assembling 12 sets of large scale drilling rigs at the same time，5 series (ZJ20~ZJ70, including 18 types) of drilling rigs have been developed and manufactured. These developed and manufactured products consist of mechanical drive, DC driven, AC VF drive and Electromechnical drilling rigs, which can handle the well with depth of 1500- 7000m in most of the large oilfields both at home and overseas.

We have more than 20 years of professional rig manufacturing experience, the design team brings together dozens of outstanding experts, the key parts of the core drilling equipment for sale use the products from international well-known rig manufacturing companies, and cooperate with many scientific research institutions to provide technical support for the innovation of the drilling rig manufacturer"s products.

ZYT Petroleum Equipment owns finite element analysis software ANSYS, ADMS, 3D PRO/E and SOLIDEGE and management software. And it is the new technology enterprise named by SINOPEC and it is the perfect technology enterprise which produces petroleum equipments in HENAN province.

Sanjack has been committed to the research of automatic workover technology for many years and has a perfect automatic workover technology development, production, and manufacturing system.

In recent years, a whole set of automation technology has been formed in the automation and intelligent development of automatic workover equipment. Through the application of module design, servo drive, integrated control, electro-hydraulic compound drive and other technologies, the supporting products suitable for various types of workover equipment have been developed to meet the needs of oilfield workover equipment upgrading.

Drill floor automatic pipe arranging manipulator can replace workers to complete the placement of the column on the drill floor surface, and connect single joint, thread connection, etc., to achieve unmanned operation of the drill floor for major workover operations.

Two kinds of automatic make-up and break-down equipment with different structural forms and different characteristics replace the manual push-pull operation of hydraulic tong.

The original integrated structure of hydraulic tong and punching tong can meet the thread up and down of tubing/drill pipe at the same time. The tong head has a floating function, which can automatically compensate the center deviation between the pipe string and the jaw and reduce the damage when the tong teeth clamp the pipe body. The torque can be accurately controlled and set, and the make-up torque of pipe string meets the requirements of API. When in standby, it can rotate and give way as a whole to provide more active operation space for the drill floor. The tong head can be deflected to meet the make-up & break-down of the mouse hole string.

The installation centering and positioning mechanism is designed to realize the accurate positioning of the equipment at one time and shorten the installation time.

It adopts programmable integrated control and industrial network communication to realize centralized control, process management and status monitoring of all automation equipment.

The hydraulic station provides hydraulic power for automatic loading and unloading hydraulic clamps, hydraulic elevators, pipe string conveyors, drill floor manipulators and other equipment.

Grasp the intelligent manufacturing as the core technology of a new round of industrial revolution brought about by the historical opportunity, "intelligent digital product design, manufacturing process and operational information service" as the direction, to electronic business and wellhead "robot" as the breakthrough point, promote the product automation, informationization, intellectualized, speed up the intelligent manufacturing process and product upgrading. We should appropriately extend the advantages of high-end equipment manufacturing, actively explore effective integration with the Internet plus new business forms, and actively foster and develop strategic new businesses in such areas as automation of oil and gas equipment, environmental protection, people"s livelihood, modern agricultural machinery services and other emerging strategic industries in other countries. We will improve the incubation mechanism for new businesses, and constantly incubate and explore other new businesses.

To meet soaring energy demands at home, China is working harder than ever to reach out to the global drilling community for new technologies, new equipment, new reserves. Here’s a glimpse into CNPC’s projects, ambitions, challenges and more.

The Chinese petroleum industry, including industry leader CNPC, has been strongly pushing technological advances through both internal research and cooperation with foreign companies. Zheng Yi, vice chief engineer and secretary general for CNPC’s engineering technology & market department, emphasized that the company is eager to learn about new drilling techniques and equipment from around the world. CNPC knows they will be critical if they are to maximize remaining reserves on their 13 oilfields, many of which are mature.

Internal reorganization in 2007 means there is no steady number of drilling companies at CNPC at this time, Mr Zheng said. But the number of its rig fleet provides a taste for the company’s size: As of September 2007, it owned 1,035 drilling rigs, mostly land rigs with a few shallow offshore units, plus 2,000 workover rigs. Mr Zheng said 22 million meters (72.18 million ft) were drilled in 2006. Although he expects that number to stay about even for 2007, he noted that 22 million meters “is double what we drilled just five years ago, only about 11 million meters (36.1 million ft).”

The most active fields nowadays, in terms of rig numbers, are the Sichuan and Changqing fields in the Southwest and the Xinjiang field in the Northwest, Mr Zheng said. But the king of CNPC fields and the biggest-producing field in China is still Daqing, home to the “iron man” spirit.

The Daqing Drilling & Exploration Group (DDEG), a massive entity within itself, owns four drilling companies and 121 drilling rigs, plus additional workover rigs, said Liu Fu, DDEG assistant president and general manager.

Underbalanced drilling has helped to a degree, but Mr Zhang and Mr Zou agreed that geosteering equipment would be extremely helpful. High costs, however, still keep things like rotary steerables out of their reach.

Case in point: In September, Drilling Contractor toured No. 1 Drilling Company’s Rig 70163 on the Daqing Oilfield. The drilling team, which had drilled three other deep wells since 2005, was three months and 3,600 m into a 4,400-m MD/3,800-m TVD gas exploration well using downhole motors and MWD. With no top drive or rotary steerable equipment, drilling through the volcanic rock has been tough going. Average penetration stood at about 1 m (3.28 ft) per hour in September.

Although many of CNPC’s subsidiaries, such as DDEG, work extensively around the world, the bulk of its international work is still carried out by subsidiary Great Wall Drilling Company (GWDC). Founded in 1993, the company specializes in onshore drilling and operates more than 180 rigs in 26 countries (including four joint ventures), ranking it among the biggest land drilling contractors in the world.

Most of GWDC’s fleet were manufactured by CNPC’s own factories, said Great Wall vice president Du Jun. A big portion of them are 1,500-hp to 2,000-hp rigs with depth capabilities ranging from 2,000 m to 9,000 m (about 6,600 ft to 29,000 ft). Mr Du noted that some clients have requested 3,000-hp rigs, but GWDC determined there was not sufficient work to justify the cost of acquiring such a rig at this time.

Still, GWDC has kept busy. Since a major reorganization in 2001, the company’s total footage drilled outside of China has increased by an average of 37% every year, from 355,000 m (1.16 million ft) in 2001 to 1.7 million m (5.58 million ft) in 2006. A total of 35 Great Wall rigs are working in Kazakhstan, its biggest market. Other major operating areas include Sudan and Venezuela.

“As a subsidiary of CNPC, we try to fully utilize the advantages of CNPC’s integrated resources, such as equipment, technical expertise, financial resources and human resources,” Mr Du said. For example, Great Wall has access to technological advances at the CNPC Drilling Research Institute, established in 2006 to improve innovations and R&D in drilling technologies.

Additionally, GWDC has access to the more than 1,000 rigs owned by CNPC. However, Mr Du acknowledged that, at this point, no additional CNPC rigs are available for the international market. “Just 2-3 years ago, we were actively trying to send more rigs outside of China, but it’s a very different story now.”

Now, CNPC does not have enough rigs to meet its own drilling needs in China, both Mr Zheng and Mr Du said. So unless it’s for CNPC’s own overseas development, no more rigs will be sent outside of China.

CNPC is working to amend that lack of rigs though. The company owns several drilling rig manufacturing companies, the biggest of which is Baoji Oilfield Machinery (BOMCO). The company is capable of building 9,000-m (29,500-ft) depth rigs and is targeting the building of 12,000-m (39,400-ft) rigs. Overall, CNPC is building and/or refurbishing 40-50 rigs a year on average, Mr Zheng said. “We don’t have enough rigs to meet our needs. Rig and parts manufacturers in China are very, very busy.”

On the equipment side, the research institute has been focusing on improving their top drives. According to Zou Laifang, vice president of the research institute, they are also on the verge of producing geosteering tools in association with BPM. The institute has spent more than eight years researching near-bit geosteering equipment, he said, and finally research is finished and field trials are under way.

One project that had significant influence on the spread of underbalanced techniques in China was done by Great Wall Drilling. According to Mr Du, air drilling is not new in China, yet due to a lack of equipment and misunderstandings about the technology, it was not popular or commonly used.

An integrated drilling project in Iran in 2000 changed that. GWDC signed a contract with National Iranian Oil Company to drill 19 wells using three rigs in Tabnak, Iran’s largest onshore, sweet gas field. From the start, drilling progressed extremely slowly. The formation’s low downhole pressure made it difficult to drill with a mud system. Lost circulation, cave-ins and sloughing were encountered.

Other than technological challenges, Mr Zheng Yi in Beijing noted that cost increases — on everything from casing/drill pipe to rigs and personnel — have impacted some projects.