We usually call the steel used the temperature range -10 to -273℃ as low-temperature steel or cryogenic steel According to alloying element content and structure, cryogenic steels can be divided into: Aluminum killed C-Mn steel such as 06MnVTi, 06MnVal, 09Mn2Vre, 06MnNb steel, low alloy ferric body low-temperature steel 0.5Ni, 2.5Ni, 3Ni, 3.5Ni, etc., Martensiform low-temperature […]
The oil casing is composed of a collar and pipe body. A single pipe body is connected with the collar thread and transported to the oil field site with end to end connection to facilitate transportation and use after reaching the required length. In order to strengthen the strength and anti-loosening control of the threaded connection, […]
U tube heat exchanger is characterized by its simple structure, good tightness, convenient maintenance and cleaning, low cost, good thermal compensation performance and strong pressure bearing capacity. The U-tube heat exchanger has the largest heat exchange area under the same diameter. The main structure of U-shaped tube heat exchanger includes tube box, cylinder, head, heat exchange tube, […]
Las juntas de aislamiento se utilizan principalmente en la protección de estanqueidad de oleoductos y gasoductos y para evitar la corrosión electroquímica. Se componen principalmente de juntas cortas, bridas de acero, anillos de fijación, juntas, placas aislantes, manguitos aislantes y materiales aislantes de relleno. El tipo de junta puede ser la junta tórica, la junta en U y la junta compuesta "O + U", [...].
N80 petroleum casing and N80 seamless steel pipe are important equipment for oil drilling, whose main equipment also includes drill pipes, core pipes and casing, drill collars and steel pipes for small diameter drilling. N80 petroleum casing and N80 seamless steel pipe have three kinds of lengths specified in the API standard: namely, R-1 for […]
Composición química(1)Según SY/T6194-96. Se utiliza el mismo grado de acero para la carcasa y su acoplamiento. Contenido de azufre <0,045% y contenido de fósforo <0,045%.(2)Tomar muestras de análisis químico de acuerdo con las disposiciones de GB/T222-84. Análisis químico de acuerdo con las disposiciones de la parte pertinente de GB223.(3) Normas API SPEC 5CT 1988 1ª edición del Instituto Americano del Petróleo. [...]
In the past, when oil extraction was carried out, simple mechanical tools were used to dig the well, and then oil workers stood on the edge of the well for oil extraction and pipeline transportation, which brought great problems to safety and efficiency. The main aspects of this are: First, the water and soil in […]
La tubería de revestimiento de petróleo puede dividirse en diferentes grados de acero según la resistencia del propio acero, a saber, J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. Las condiciones de los pozos, la profundidad de los pozos son diferentes, el grado de acero tomado también es diferente. En el ambiente corrosivo también solicitar la propia carcasa existe resistencia a la corrosión. La [...]
Surface casing1、Used to seal the upper unstable loose, collapse-prone and leaky formations and water layers.2、Installation of wellhead device to control well blowout.3、Support part of the weight of technical casing and oil layer casing. The depth of the surface casing down depends on the specific situation, usually a few dozen meters to a few hundred meters […]
In the overlapping area of coal and oil and gas resources, due to the deeper oil deposits, the oil wells penetrate the coal strata, and the secon-hand oil well casing acts on the deformation and damage of the working site, changing the original mechanical state of the roof. At present, the phenomenon of toxic and […]
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