Professional advice and optimization practices for drilling platform gasification

Recommended solutions for drilling rig gasification

i．Electric drilling solution

Gas generator set + parallel machine convergence switch cabinet + standby diesel generator set

For the 70 drilling rig platform, it is recommended to use 3500kW natural gas generator set + parallel machine convergence switch cabinet + drilling rig original diesel generator set to provide backup power supply. The power supply process is shown in the figure below: 

ii．Mechanical Drilling Solution:

Gas generator set + DC control room + variable frequency DC motor:

Mechanical drilling rigs generally use diesel power machines + couplers or gearboxes. This solution replaces the diesel power machine with a variable frequency DC motor and uses a natural gas generator set to power it, in order to achieve the goal of energy saving and consumption reduction.The mechanical drill gasification uses the same natural gas generator set configuration as the electric drill, and its power supply process is shown in the figure below:

iii．Purpose:Energy saving, environmental protection, efficiency improvement;

iv．Requirements

1. Energy requirements:

Meet the normal power demand of 50 and 70 electric drilling rigs.

Power outages are not allowed after drilling. In extreme cases, the same diesel generator set can be quickly switched.

2. Hoisting requirements:

The product design is easy to hoist and relocate, easy to install, and has a reinforced structural design.

Multiple hoisting does not cause deformation of the product structure.

3. Use environment requirements:

The product design meets the normal use under harsh environmental conditions such as high temperature, high humidity, high altitude and strong wind and sand.

4. Layout requirements:

Meet the requirements of product safety spacing, maintenance, etc.

The product is compact and reasonable; meet the requirements of the on-site pipeline route, and the installation layout is neat and uniform.

v．Solution features

1. Unit integration: modular design and skid, the skid is arranged according to the needs, each unit can be started and stopped freely, installation and transportation are convenient and fast.

2. Easy operation: intelligent centralized control is adopted, the unit realizes one-button start, parallel closing, load distribution, opening, shutdown and other functions, and at the same time forms effective fault protection through settings.

3. Environmental adaptability: most oil and gas fields are in remote areas with harsh environments, and the unit can better adapt to environments such as strong wind and sand, high temperature, high humidity, low temperature, high altitude, etc.

4. Transient responsiveness: when the power load suddenly changes, the engine responds quickly, reducing the impact of transient load changes on frequency and voltage.

5. Unit reliability: the vehicle gas engine that has been verified by more than 100,000 vehicles is selected, and the engine is deeply developed for secondary development to meet the load characteristics of drilling conditions, which has been unanimously recognized by the market.

6. Operation economy: domestic mass-produced engines are used, with low failure rate, simple maintenance and low cost.