煤层气水平井玻璃钢筛管完井工艺技术

发布时间：2018-06-14 23:21

本文选题：煤层气 + 水平井　；参考：《煤炭科学技术》2016年05期

【摘要】：针对钢筛管完井工艺具有维护井壁稳定、高效防砂、防锈耐腐、安全经济、可实现管柱重入完成通洗井等优点,将玻璃钢筛管完井工艺作为一项新的完井工艺,在煤层气水平井裸眼完井、PE筛管完井技术上进行创新设计。试验结果表明:玻璃钢筛管较低的摩擦因数更利于管柱下入作业,较高的强度有利于保证水平段通道的完整,实现后期水平井段的通洗井作业,非金属的材质有利于煤矿后期的开采作业安全。玻璃钢筛管以冲管为内管可在整个作业过程中建立泥浆循环,可以有效处理下筛管过程中的遇阻现象,并能实现高压水力喷射洗井,更大限度地降低前期作业过程中对储层的损害。该工艺首次在山西煤层气现场施工32口井,累计筛管下入长度40 862 m,成功率100%玻璃钢筛管完井工艺可以促进煤层气开发。
[Abstract]:The steel sieve tube completion technology has the advantages of maintaining well wall stability, high efficiency sand control, anti-corrosion and corrosion resistance, safe and economical, and can realize the pipe column reentry to complete the well washing well. The glass steel sieve tube completion technology is used as a new completion technology, and the design of the PE sieve tube completion technique is carried out in the open hole completion of the CBM horizontal well and the completion technology of the sieve tube. The test results show that glass The lower friction factor of the steel sieve tube is beneficial to the operation of the pipe column, which is beneficial to ensure the integrity of the horizontal section, and to realize the operation in the later horizontal well section. The non metal material is beneficial to the safety of the mining operation in the later period of the coal mine. In order to effectively deal with the obstruction phenomenon in the process of the sieve tube, and the high pressure hydraulic jet washing can be realized, the damage to the reservoir in the early stage operation is reduced greatly. The process is the first time to construct 32 wells in Shanxi coal bed gas field, the length of the accumulative sieve tube is 40862 m, and the successful rate of 100% glass steel sieve tube completion technology can promote the coalbed gas opening. Hair.
【作者单位】：北京九尊能源技术股份有限公司;
【分类号】：TD842

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