沁水盆地樊庄区块提高产能建设到位率的研究

Study on Improving the Fulfilment Rate of Production Capacity Construction in Fanzhuang Block of Qinshui Basin

如何减少煤层气低效井,提高产能建设到位率是目前煤层气开发过程中急需解决的关键问题。本文以投产时间长,集输系统较完善的沁水盆地樊庄区块为例,结合该区块开发历程和效果,利用大量的实际生产数据,研究总结了该区低效井的形成原因,提出了提高产能建设到位率的建议。分析指出早期地质认识不足、储层改造针对性不强、储层保护意识不够、排采认识不到位、抽排工艺适应性不高是导致该区部分井低效的主要原因。

How to reduce low efficient CBM well and improve the fulfilment rate of production capacity construction has become a key issue which needs to be urgently solved in current CBM development process. The paper takes Fanzhuang Block with long operation time and relatively sound gathering and transportation system in Qinshui Basin as the example,studies and summarizes the reason causing the low efficient well in this block on the basis of the development history and effect of the block as well as large amount of production data in practice,and puts forward the suggestion for improving the fulfilment rate of production capacity construction. It points out that the main reasons to cause the low efficiency of some wells in the block include lacking geological knowledge in the early stage and special target for reservoir reconstruction,less awareness of reservoir protection,improper understanding on drainage,and inadaptability of drainage process.