Tubing coupling plays a major role in the petrochemical industry. It is estimated that each meter of drilling requires 62 kilograms of oil and gas well pipe, including 48 kilograms of waterproof casing and 10 kilograms of pipe, 3 kilograms of drill pipe, and 0.5 kilograms of drill collar. Due to the large consumption of fuel, the cost is high. Tubing coupling price savings and cost reduction potential is huge.
In recent years, the quality level of domestic oil waterproof casing has moved forward from time to time, and some used to be higher than imported waterproof casing. Many of the products designed and produced are in the forefront of the world. Domestic oil pipe coupling price skill specification:
1. The surface of the waterproof casing and connecting external threads should be lubricated, and no burrs, tears, etc. are allowed to cause the shortcomings of the external thread infix hazard strength and tight connection.
2. According to SY/T6194-96, the length of domestic waterproof casing is variable, and its range is 8-13m. Enclosures smaller than 6 meters can be supplied, but the number of enclosures should not exceed 20%.
3. The surface of the waterproof sleeve shall not be folded, striped, layered, split, flipped and scarred. These shortcomings should be thoroughly eliminated, and the removal depth should not exceed 12.5% of the nominal wall thickness.
4. The surface of the coupling is not allowed to have folding, stripes, layers, splitting, flipping, scars and other shortcomings. A different type of waterproof casing is used in the oil production process: the surface tubing coupling protects the well from contamination in shallow water and gas, supports the wellhead equipment and maintains the other layer components of the waterproof casing. The tubing coupling separates the pressure at different levels to allow the normal flow of drilling fluid and protect the consumer waterproof casing. In order to install anti-burst equipment, anti-leakage equipment and liner in the drilling rig. Reservoir tubing connections carry oil and gas from reservoirs beneath the surface. Used to protect drilling, will drill mud layers. When the tubing coupling is consumed, the outer diameter is generally 114.3 mm to 508 mm.
Protect the well from the inevitable contamination of its interior, equipment at the wellhead and support other layer components of the waterproof casing. The tubing coupling separates the pressure at different levels to allow the normal flow of drilling fluid and protect the consumer waterproof casing. In order to install anti-burst equipment, anti-leakage equipment and liner in the drilling rig.
