Drilling energy storage device pressure

Can electric energy storage be used for drilling based on electric-chemical generators?

The article outlines development of an electric energy storage system for drilling based on electric-chemical generators. Description and generalization are given for the main objectives for this system when used on drilling rigs isolated within a single pad, whether these are fed from diesel gensets, gas piston power plants, or 6–10 kV HV lines.

What is the power system in hydraulic surface drilling rig?

Figure 1 shows the structure of the power system in hydraulic surface drilling rig, which is mainly composed of hydraulic system, pneumatic system, and engine. It can be seen that the engine is connected to the hydraulic pump and air screw compressor through the transfer case. The output power of engine is mainly consumed by two parts.

How can a hydraulic surface drilling rig save energy?

In order to achieve the purposes of better energy saving and lower fuel consumption under the condition in which load changes frequently and fluctuates dramatically, the energy-saving control strategy of power system is put forward in a hydraulic surface drilling rig.

Can energy storage systems improve energy eficiency of DPS-powered rigs?

Based on average daily power consumption statistics and load diagrams for various rig operating modes at more than fifty pads equipped with DPS, it was proposed to improve the energy eficiency of individual DPS-powered rigs by introducing energy storage systems (Fig. 1).

Which rigs have energy storage systems for onshore drilling?

The energy storage system developed for onshore drilling is among the world’s first ones. As a foreign analog, only the project of the German rig manufacturer Bentec implemented in Oman can be highlighted. In 2017, the container-type 0.9 MW Bentec ESS with a storage capacity of 0.3 MW was put into trial operation on the KCA Deuteg T-94 rig.

What is managed pressure drilling (MPD)?

Contain hydrocarbons or other wellbore fluids and prevent their release to the atmosphere. Managed pressure drilling (MPD) provides a closed-loop circulation system in which pore pressure, formation fracture pressure, and bottomhole pressure are balanced and managed at surface.