一套适用于水平井裸眼充填的防砂系统，可以在水平井中完美的实现管柱下入、坐封、验封、丢手、循环、充 填、酸洗、起出等各个流程，设计管柱能够在作业过程中时刻维持正向压力于地层，有效保护裸眼段的稳定性，保 证充填作业顺利完成

◎ 适用于9-5/8”套管+8- 1/2”裸眼、7”套管+6”裸眼

◎ 正循环下入，可传递较大扭矩，遇阻帮助快速解阻

◎ 顶部封隔器内通径大，坐封、悬挂性能可靠，具有两级坐封机构

◎ 充填时可施加一定载荷于井筒管柱，防止管柱窜动，保障充填效果

◎ 充填完成后起出服务工具管柱，井筒清洁、畅通，便于后续作业

◎ 整体工具管柱压力级别达46MPa，温度级别150℃，也可满足压裂充填作业需求。

◎ 防砂工具可提供API P110，API N80，API L80-9Cr，API L80- 13Cr等多种级别材料，满足不同工作环境要求。

OPENHOLE HORIZONTAL GRAVEL-PACK SYSTEM

Openhole Horizontal Gravel-Pack System applied for gravel-pack sand control completion in openhole horizontal wells, which can successfully accomplish the string tripping in, setting, testing, releasing, circulation, gravel pack, acid washing, tripping out etc. The designed string can maintain the pressure in horizontal wellbore, which is greater than that of formation, protecting the stability of openhole wall and ensuring smooth of the gravel pack operation.

◎ Applicable to 9-5/8 "casing + 8-1/2" open hole, 7 "casing + 6" open hole;

◎ Allows normal circulation and proper rotating to resolve the problem of tight trip quickly, when tripping;

◎ Packer of COHP with beginner diameter has reliable setting and hanging performance, and two-stage setting mechanism;

◎ Can bear load to prevent pipe moving and ensure the best filling result, when pack;

◎ Can keep the well bore clean after pulling the service tool from the hole at the end of pack;

◎ Can withstand 46MPa working pressure and 300 ℉ (150℃ ) working temperature, which could meet the requirement of rac-pack completion;

◎ Can provide API P110, API N80, API l80-9cr, API l80-13cr and other materials to meet the requirements of different working environments.