power tong frame top view quotation

The Eckel Top Drive Casing Tong is a tool developed for use on hydraulic top drive rigs to provide a high quality connection while reducing tubular damage and providing a safer enviroment for crews. With an operating capacity of 4 1/2 inch through 10 5/8 inch, is connected to the output stem of the power swivel. After installation the tong becomes an integral part of the swivel, raising and lowering as a unit and transfering the power swivel"s RPM and torque to the pipe/connection.

A guide attached beneath the top drive tong simplifies alignment of the collar within the tong. Once the collar of the pipe is enclosed within the top drive tong, the tong will grip the collar by operating the power swivel. Torque and rotational speed are controlled through the operation of the power swivel. Reversal of the power swivel will cause the tong jaws to release. Tong jaws are spring loaded to retract away from the collar.

Utilizing three gripping jaws and a patented Eckel Cam Biting System to grip the pipe collar. The same type of proven biting system found in the industry leading Eckel Power Tongs. These jaws are spaced evenly about the circumference of the collar to provide even distribution of the gripping forces

The big, capable Model 36 UHT easily produces 100,000 ft-lb of torque for makeup or break-out operations involving casing in sizes 16 inches through 36 inches. This casing tong weighs approximately 13,000 pounds and is 81 inches wide and 135 inches in length. A two-speed motor delivers 16 RPM in high, 3½ RPM in low range, both at 70 GPM.

The HD26000 casing tong can handle tubulars as small as 10-3/4″ and as large as 26″ in diameter. Other sizes can be special-ordered. Tong can be mounted on either a CLINCHER® or a FARR® hydraulic backup. Available with McCoy’s patented WinCatt® data acquisition and torque control system for the make-up of tubular connections.

Our experienced and skilled power tong technicians play a major role in the safety and efficiency of a casing run. This makes the selection of your power tong service company a key component of overall performance.

ProTorque attracts and employs some of the industry’s most talented and experienced casing running technicians. Every detail of a casing run must be considered when looking for cost savings and efficiency; particularly on long production strings where every second counts while maintaining a safe operation. When making-up hundreds of connections, filling on the fly and selecting the correct handling equipment (air or hydraulic powered slips); we save time and effort on long challenging casing runs. ProTorque can meet handling requirements of up to 500 tons of hoist capability.

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The 1976 Tangshan earthquake (Chinese: 唐山大地震; pinyin: Tángshān dà dìzhèn; Mw 7.6 earthquake that hit the region around Tangshan, Hebei, China, at 3:42 a.m. on 28 July 1976. The maximum intensity of the earthquake was XI (Extreme) on the Mercalli scale. In minutes, 85 percent of the buildings in Tangshan collapsed or were rendered unusable, all services failed, and most of the highway and railway bridges collapsed or were seriously damaged.earthquake in China and among the top disasters in China by death toll.

The damage done by an earthquake depends primarily on two factors. First, the intensity of shaking, which depends mainly on the magnitude of the earthquake rupture, the distance from the epicenter, and the nature of the local soil and topography, with soft soils (e.g., sediments and fill) more likely to amplify the intensity and duration of the shaking.design and construction of the structures being shaken, with houses built of adobe or stone, wooden houses without a well-built frame, and unreinforced masonry construction being especially vulnerable.unreinforced brick buildings",

The power (magnitude) of the Tangshan earthquake is indicated by the extent of where it was felt: up to 1,100 km (680 mi) away, across most of northeastern China, and even in Mongolia and Korea.Modified Mercalli Intensity Scale), with nearly 10% of all buildings damaged,

The rupture occurred under the southern part of the city, and propagated northeastward on a fault that runs through the middle of the city. The maximum intensity was "XI" (eleven) on the 12-degree Chinese scale. Nearly every building and structure in the city collapsed, wholly or partially, infrastructure was severely damaged, and essential services such as electric power, water supply, and communications were entirely knocked out.

Mining coal is Tangshan"s principal industry, and when the quake struck around 10,000 miners were underground. For the most part the mine roadways (tunnels) were not seriously damaged, but with the loss of electrical power there was no illumination (aside from headlamps), no ventilation, and no working lifts.

Most of the damage to the vertical shafts occurred within the first 50 meters, where they pass through the water-bearing alluvium. In many cases the concrete liner built to keep out the water cracked (particularly where not built properly), allowing a much greater inflow of water. Coupled with damage to the underground drainage system and lack of power to drive the pumps, many of the various mines flooded.

The Beijing–Shanhaiguan Railway (built in 1887) is a double-track Class I trunk line that runs from Beijing southeast to Tianjin and Tanggu, then turns northeast to cross the Yongdingxin River and its estuary to run to Ninghe and then Tangshan. From Tangshan it continues northeast and then east to Chengli, and then to Qinhuangdao and Shanhaiguan. This is the principal connection of Beijing, Tianjin, and Tangshan to the seaports, and to Northeast China. The Tongxian to Tuozitou (within modern-day Luan County) Railway (built in 1976) is a single-track Class I trunk line that runs east from the eastern outskirts of Beijing to where it meets the Beijing to Shanhaiguan line northeast of Tangshan (near the epicenter of the M 7.1 quake).1975 Haicheng earthquake.

Railway operations were further impaired by the loss of communications (including signalling) and water supply (for the steam locomotives), in both cases due mainly to collapse of buildings and loss of electrical power.

The official report claimed 242,769 deaths and 164,851 serious injuries in Tangshan, but when take into account the "missing", the injured who later died and the deaths in nearby Beijing and Tianjin, scholars accepted at least 300,000 died,earthquake in China and among the top disasters in China by death toll. Unofficial estimates of the death toll varied widely, and generally lack a clear authoritative basis.

Raleigh et al. (1977, p. 260), quoting the Peking Review (1975, p. 20), state: The link between politics and earthquake prediction is well expressed by the following statement: "This is eloquent proof that in socialist New China, under the leadership of Chairman Mao and the Communist Party and by relying on the masses and professional seismological workers armed with Marxism – Leninism – Mao Tze-tung thought and preserving in practice and summing up experience conscientiously, not only can signs indicating an earthquake be observed but predictions and forecasts can be made and damage can be greatly minimized by doing a good job of precautionary work".

Guo, Shunmin (2002), "Occurrence of the Tangshan Earthquake from the View of Fault Block Movement", in Housner, George W.; He, Duxin (eds.), The Great Tangshan Earthquake of 1976, vol. 1, Pasadena, California: Earthquake Engineering Research Laboratory, California Institute of Technology, pp. 24–47.

Housner, George W.; He, Duxin, eds. (2002), "Overview Volume" (PDF), The Great Tangshan Earthquake of 1976, Pasadena, California: Earthquake Engineering Research Laboratory, California Institute of Technology. English translation of the Chinese report of 1986.