Modularized Electric Drilling Rig

Modularized Mechanical Drilling Rigs

1. Introduction

Our modularized drilling rigs usually adopt three kinds of driving modes: electric drive (DC/AC/VF), compound drive or mechanical drive. They are often equipped with a K-type mast and box-type or swing-up substructure. A top drive system can be installed at the request of customer specified requirements. Drilling tools, manifolds system, drilling fluid recirculation system, electric system and well control system can also be provided accordingly. They are mainly designed for 1500m-9000m drilling operations.

The products are produced under API 4F, 7K, 8C, 6A, and 16C, etc., our manufacturing process can be supervised by customers, inspected and certified by any third party inspections.

2. Main features

● The DC drive drilling rigs are designed with state-of-the-art AC-SCR-DC electric drive technology.

● The AC drive drilling rigs are designed to adopt an integrated control for electric, air and hydraulic system based on full digital AC VF technology and PLC logic control technique.

● The parallelogram substructure which can be lifted as a whole, piled-box-type, or telescoping substructure are provided. All the floor devices and mast can be installed in a low position, and wholly lifted by the drawworks.

● The DC drawworks, designed for integral chain driving mode, is equipped with mechanical gear-shifting device, hydraulic disc main brake, eddy current auxiliary brake(or air-controlled disc brake), and independent auto driller.

● The AC drawworks is designed for single drum hear driving, with stepless speed regulation. A hydraulic disc brake is adopt to be main brake, a motor dynamic brake as auxiliary brake. The automatic bit feed is powered by the main motor or an independent motor. The real-time tripping operations and drilling operations can be monitored.

● Self-contained driller control house, unified layout of air, electric and hydraulic controls, drilling parameters and instruments, logic control, monitoring and protection of full drilling process can be realized by PLC, and so are date storage, printing and remote transmission.

● The drawworks, rotary table and mud pump are all independently powered by motors, with full process stepless speed regulation.

● Intelligent control over traveling block, to avoid collision and bumping.

● An integral guiding rail can be fitted for cluster well drilling operations.

piled-box type substructure	electric drive drawworks	swing-up type substructure

3. Main technical parameters

(The below technical parameters is just for reference only)

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