油套管連接強(qiáng)度計(jì)算關(guān)鍵參數(shù)討論

Discussion on Critical Parameters Concerning Computation of Connection Strength of Oil Tubing and Casing

摘要: 介紹了油、套管連接強(qiáng)度計(jì)算標(biāo)準(zhǔn)及常見連接強(qiáng)度計(jì)算公式。分析討論了油、套管連接強(qiáng)度計(jì)算中的關(guān)鍵參數(shù)，即接箍危險(xiǎn)截面、管體危險(xiǎn)截面、屈服強(qiáng)度和抗拉強(qiáng)度。認(rèn)為結(jié)構(gòu)參數(shù)（接箍危險(xiǎn)截面、管體危險(xiǎn)截面）與螺紋接頭、牙型和上扣位置等有關(guān)；認(rèn)為材料參數(shù)（屈服強(qiáng)度和抗拉強(qiáng)度）與螺紋接頭和公式選擇類型（設(shè)計(jì)公式與極限公式）有關(guān)。

Abstract: Described here in the essay are the calculation criteria and the common-used formula for the connection strength of the oil tubing and casing.Also analyzed and discussed are the critical parameters concerning the said connection strength computation,including coupling dangerous cross section,pipe body dangerous cross section,yield strength and tensile strength. It is regarded via the analysis that the structural parameters(i.e.,coupling dangerous cross section and pipe body dangerous cross section)are related to the data like the thread connection,the thread profile and the make up position,etc. It is conclusively regarded that the material parameters (i.e.,yield strength and tensile strength)are related to the thread connection and the formula type as selected(i.e.,the design formula and the limit formula).