煤层气L型水平井电潜螺杆泵井清防砂工艺技术创新及应用  

Technological Innovation and Application of Sand Cleaning and Control Process for Coalbed Methane L-type Horizontal Well with Electric Submersible Screw Pumps

作　　者：何军[1] 李文强[1] 张全江 张慧 彭鹤[1] 腾海新 HE Jun;LI Wenqiang;ZHANG Quanjiang;ZHANG Hui;PENG He;TENG Haixin(Shanxi Coalbed Methane Exploration and Development Branch,PetroChina Huabei Oilfield Company,Shanxi 048000)

机构地区：[1]中石油华北油田山西煤层气勘探开发分公司,山西048000

出　　处：《中国煤层气》2024年第4期26-29,共4页China Coalbed Methane

摘　　要：套管完井压裂投产的煤层气L型水平井出砂严重,倒置式电潜螺杆泵举升工艺受压裂砂影响故障频繁,影响了连续稳定排采,因此确定了倒置式电潜螺杆泵排采过程中由于压裂砂导致的故障点,并针对性创新应用了井筒内、导流罩及泵内清砂工艺技术,同时优化防砂管柱设计,确保了连续稳定排采。Coalbed methane L-type horizontal wells, which are completed and fractured using casing, often face severe sand production. The inverted electric submersible screw pump lifting process is frequently affected by fracturing sand, leading to frequent failures and disrupting continuous and stable drainage. This study identifies the fault points caused by fracturing sand in the process of discharge and production by the electric submersible screw pump and innovatively applies sand cleaning techniques inside the wellbore, flow guide covers, and within the pump. Additionally, the sand control tubing design was optimized, ensuring continuous and stable drainage.

关 键 词：煤层气 L型水平井 电潜螺杆泵 清防砂工艺 连续稳定 排采 

分 类 号：TE375[石油与天然气工程—油气田开发工程]