两井间巷道贯通测量方案设计及其精度控制

Design and precision control of roadway penetration measurement scheme between two wells

为保证两井间巷道贯通的精度,在巷道贯通测量中运用GPS技术,对巷道的贯通方案进行分析,并对井筒施工、井下导线、地面动态控制的测量分析,且计算其贯通误差,结果表明:贯通点K在x向的预计总误差是±0.460 m,低于±0.500 m,满足巷道贯通的精度要求.

In order to ensure the accuracy of the tunneling between the two wells,GPS technology was used in the roadway penetration measurement.Firstly,the tunneling scheme was analyzed,and the measurement and analysis of the wellbore construction,the downhole conductor and the ground dynamic control were calculated,and the penetration error was calculated.The results showed that the estimated total error of the through point K in the x direction was±0.460 m and lower than±0.500m,which met the accuracy requirements of the tunnel penetration.