Technological Innovation and Application of Sand Cleaning and Control Process for Coalbed Methane L-type Horizontal Well with Electric Submersible Screw Pumps
Coalbed methane L-type horizontal wells,which are completed and fractured using casing,of-ten face severe sand production.The inverted electric submersible screw pump lifting process is frequent-ly 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 well-bore,flow guide covers,and within the pump.Additionally,the sand control tubing design was opti-mized,ensuring continuous and stable drainage.
Coalbed methane L-type horizontal wellelectric submersible screw pumpsand cleaning and control processcontinuous and stable drainage
NETL
NSTL
万方数据
