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The usage of oil casing

Views: 0     Author: Site Editor     Publish Time: 2023-03-23      Origin: Site

An oil casing is a large-diameter pipe that fixes the walls or holes of oil and natural gas wells. The casing is inserted into the wellbore and set with cement to help the wellbore separate the rock formation and prevent the wellbore from collapsing while ensuring the drilling mud circulation to facilitate drilling and production.


Steel grades for oil casing: H40, J55, K55, N80, L80, C90, T95, P110, Q125, V150, etc. Processing form of casing end: short round thread, long round thread, partial trapezoidal thread, special buckle, etc. Used in oil well drilling, it is mainly used to support the well wall during the drilling process and after the well completion, to ensure the drilling process and the normal operation of the entire oil well after the well completion.


The important position of oil casing

The petroleum industry is an industry that uses a large number of petroleum casings, and petroleum casings play an essential role in the petroleum industry:


1. Oil casings are used in large amounts and cost a lot, so there is great potential for saving expenses and reducing costs. The consumption of oil well pipes can be calculated according to the annual drilling feet. According to the specific conditions of our country, generally, 62kg of oil well pipes are required for every 1m of drilling, including 48kg of the casing and 10kg of oil pipe. Drill pipe 3kg, drill collar 0.5kg;

2. The mechanical and environmental behavior of oil casing has an important impact on the adoption of advanced technology and increase in production and efficiency in the oil industry;

3. The loss of oil casing failure is huge, and its safety, reliability, and service life are of great importance to the oil industry.


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