SSAW Pipe

    The casing pipe coupling is the necessary workpiece for connecting the two tubing sleeves. Manufacturing methods is the same as seamless pipe , the domestic use of j55, n80Q and other special steel manufacturing. The ends of the steel pipe have internal threads for connection to the upper and lower tubing. In order to ensure the sealing of the joint, the thread precision has more stringent requirements.     First, use     Used to connect the upper and lower tubing.     Second, the type     Domestic casing pipe is divided into non-thickening casing pipe coupling and thicker oil casing at both ends of the collar.     Third, the processing process     Car end face - car outer circle - boring - car thread - inspection - phosphating

    N80 steel pipe is generally casing pipe. N80 casing pipe is an important equipment for oil drilling, and its main equipment also includes drill pipe, core tube and casing, drill collar and small diameter drilling steel pipe.     Domestic casing to geological drilling steel by hot-rolled or cold drawn, steel with "geological" (DZ) said that the commonly used casing steel DZ40, DZ55, DZ753 species.     (1) Casing pipe mainly imported countries: Germany, Japan, Romania, Czech Republic, Italy, Britain, Austria, Switzerland, the United States, Argentina, Singapore also imports. Import standard reference to the American Petroleum Institute Standard API5A, 5AX, 5AC. Steel grade is H-40, J-55, N-80, P-110, C-75, C-95 and so on. Specifications for the main 139.77.72R2,177.89.19R-2,244.58.94R-2,244.510.03R-2,244.511.05R-2.     (2) API provides a length of three: R-1 is 4.88 ~ 7.62m, R-2 is 7.62 ~ 10.36m, R-3 is 10.36m to longer.     (...

    Casing pipe with a total of H40, J55, K55, M65, N80, L80, C90, T95, C95, P110, Q125 more than twenty different steel grade and type. In order to distinguish between different grade of steel strength, thread type, respectively, with different color code and symbols represent represent steel grade and thread.     Color label and english letters at the back of the 2 or 3 digits said the minimum yield strength steel grade oil casing, such as J55 said its minimum yield strength of 55000 pounds per inch (379 mpa) up to 80000 pounds per inch (552 mpa), 2 P110 minimum yield strength of 110000 pounds per inch (758 mpa) up to 140000 pounds per inch 2 (965 mpa).H, J, K, N for general strength oil bushing, C, L, M, T for qualified yield strength oil bushing, which has certain anti-sulfur corrosion resistance.

    The economic benefits of aluminum alloy drill pipe are mainly manifested in the following aspects:     ① Get a very high technical - economic benefits, although the payback period is relatively long, but more competitive than steel drill pipe;     ② Shorten the drilling time, no special requirements on the rig;     ③ Aluminum drill pipe is mainly used for drilling depth greater than 2km, lifting operation for a long time of the well, can increase the mechanical drilling index. The increase in the material of the depreciation pipe can be compensated by the reduction of the lifting operation time;     ④ Reduce the weight of drilling equipment, saving materials and transportation costs, reduce the maintenance and production costs of the rig;     ⑤ Aluminum drill pipe low cost, long service life.     http://www.xysteelpipe.com

    There are many ways to connect carbon steel seamless tube , and now several commonly used methods are listed:     a, compression type; b, live connection; c, compression; d, push; e, taper thread; f, socket welding; g, live flange connection; h, welding and welding and the traditional combination of the derivative Series of connections.     Different connections, because of their different production principles, its application areas are also different, but in general have one thing in common is the easy installation, solid and reliable.     Here are some of the more common connection to do a brief introduction:     1. Compression: the pipe into the pipe fittings, fastened by the nut, with a spiral force to the mouth of the casing through the seal ring compression, sealing effect, to complete the connection pipe.     2. Welding type: the end of the pipe processing bevel, with manual or automatic welding on the pip...

    No doubt that there are lots of treasures under the deep ocean, especially for various gas which are our needed nowadays. However, due to the typical character of deep ocean different from mainland, it is hard to get the treasure out. Thus, requirements for various pipes like seamlesssteel pipe and ERW steel pipe would be serious than ever in order to have a good features for working beneath the deep ocean.     Compared with the shallow sea environment, there are enormous pressures in the deep sea as well as serious problems of temperature, salinity, dissolved oxygen, pH, biological fouling, metal ion deposition and surface flow rate, which bring great difficulty for deep sea's research and development as many mature technologies in the sea and in the shallow sea can not be applied in the deep ocean. Deep sea materials, related to high strength steel, corrosion resistant alloys and non-metallic materials, are mainly used in deep-sea oil platforms, deep-sea oil ...

    Reducing flanges are designed for when there is a change in the pipe size. A reducing flange consists of a flange with one specified diameter having a bore of a different and smaller, diameter. Except for the bore and hub dimensions, the flange will have dimensions of the larger pipe size.     Weld Neck and Slip-On: Connect the flange sides that match the higher diameter of pipe and complete welding process. Repeat the welding process for the smaller size of pipe on the other side of the reducing flange. Now both sizes of pipes are connected through the reducing process. Take enough care to ensure that the inside diameters of the pipes are properly aligned with the ID of the Flange on both sides.     Threaded Flange: First connect any one size of pipe by threading to one side of the flange. Make sure that the pipe is inserted to reach the required depth inside the flange. Repeat the same process for the other size of the pipe.     In hig...