HSM-2特殊螺紋接頭接箍與工廠端相對轉(zhuǎn)動(dòng)原因分析

Analysis of Causes for HSM-2 Premium Connection Coupling Side Rotation Relative to Factory Side

摘要: 國外某油田現(xiàn)場上扣時(shí)出現(xiàn)特殊螺紋接頭工廠端與接箍發(fā)生相對轉(zhuǎn)動(dòng)。利用工廠生產(chǎn)車間擰接和全尺寸實(shí)驗(yàn)室擰接進(jìn)行上扣試驗(yàn)，探討HSM-2特殊螺紋接頭接箍與工廠端發(fā)生相對轉(zhuǎn)動(dòng)的原因。結(jié)果表明：現(xiàn)場端扭矩比工廠端高出一定值才有可能使工廠端接箍發(fā)生相對轉(zhuǎn)動(dòng)。建議下井前準(zhǔn)確標(biāo)定扭矩系統(tǒng)壓力傳感器，定期校驗(yàn)現(xiàn)場使用的扭矩儀。

Abstract: Based on the fact as found in a foreign oil field that when making up the coupling in the field, the premium connection factory side is rotating relatively to the coupling, causes for the HSM-2 premium connection coupling's rotation relative to the factory side is investigated via workshop screw-up testing and the full-scale screw-up test as made in the laboratory.The test result reveals that only in case that the field side torque is higher than that of the factory side, should the factory side coupling rotate relatively.Therefore it is suggested that before putting the pipe down to the well, the pressure sensor of the torque system be accurately calibrated, and the siteused torque gauge be periodically checked.