水平井筛管完井找堵水工艺技术研究

摘要

To solve the problem of water detection and plugging (WDP) in horizontal wells has become the first and foremost problem in the later stage development of horizontal wells in Jidong Oilfield. According to the features of the horizontal completion in the oilfield, the technology of WDP for horizontal screen completion was studied and developed. The basic principle of the technology is to set the WDP string into the oil-well screen pipe and use the packer to conduct an effective segmentation of the reservoir and perform the on-off operation of the WDP switch. As a result the WDP operation can be achieved. The field application shows that the WDP technological string is simple in structure, convenient in operation and accurate and reliable in layer-adjusting. It can meet the needs of WDP for horizontal wells of screen completion.%解决水平井的找、堵水问题，已成为冀东油田水平井后期开发的首要问题。根据冀东油田水平井完井特点，研发出水平井筛管完井找堵水工艺技术。该找堵水工艺技术的基本原理是将找堵水管柱下入油井筛管内，采用封隔器对油藏进行有效分段和找堵水开关的打开、关闭操作，实现对各油层找堵水作业。现场应用情况表明，水平井筛管完井找堵水工艺管柱结构简单，操作方便，调层准确可靠，能够满足筛管完井水平井找堵水的需要。