Noise, air pollution and water pollution are the three major public hazards in the world today and are by-products of industrial society. Oil drilling rigs have made huge contributions to our energy exploration and extraction, but they have also caused damage to the surrounding environment. The well site is near a residential area, causing inconvenience to residents' daily lives. At the same time, the huge noise caused by the well site being in the wilderness has caused great damage to the ecological environment. When you are in the operating environment of a drilling rig site, you will be deeply aware of the harm of noise. Therefore, we propose methods to control the noise of oil drilling rigs.

Although the operating noise of oil drilling rigs cannot be eliminated, it can be effectively controlled. When the drilling rig is operating, the engine is the main source of noise, and its main noise location is exhaust noise. Exhaust noise is the most energetic and main engine noise source in the engine, and its noise is often 10dB-15dB higher than the overall engine noise. Exhaust noise includes: fundamental frequency and high-order harmonic noise, exhaust pipe resonance, vortex noise on the back of the valve stem, surface-evading residual flow noise in the exhaust pipe, and exhaust gas injection impact.

Noise control measures for diesel generator sets of oil drilling rigs:

1. Sound-absorbing materials
Sound-absorbing materials can effectively control the noise of petroleum equipment, and melamine foam is the most used sound-absorbing material. Since its excellent sound absorption properties, flame retardant properties, thermal conductivity properties, extensive weather resistance, etc., it is very suitable for noise control of diesel generator sets of oil drilling rigs.

Excellent properties of melamine foam acoustic materials by SINOYQX:
Excellent sound absorption performance (0.95NRC);
Permanent flame retardancy ((UL94 V-0, HF-1, B1 grade);
Excellent thermal insulation (thermal conductivity, 0.035 W/ (m*K));
Light weight (8.5KG/cubic, reaching the design target performance, 1/3 of the weight of traditional glass wool and other materials);
Extensive weather resistance (minus 180 degrees Celsius to 200 degrees Celsius, up to 240 degrees Celsius, maintaining stable physical and chemical properties);
Environmentally friendly (does not contain any halogenated hydrocarbons, flame retardants and/or toxic heavy metals; does not produce toxic or harmful gases when burned in a flame);
Environmental stability (acid resistance, alkali resistance, antibacterial, mildew resistance);
Secondary processing formability (can provide various shapes, sizes and thicknesses, easy cutting, specially developed outer metal frame, easy and convenient processing, and installation).

2. Sound barrier
Rigid barriers with large amounts of mass and stiffness reduce the propagation of sound energy. Examples include steel panels typically used for enclosures and sand-filled block walls or poured concrete walls for indoor locations. Enclosures are becoming lighter as a cost-saving measure, so it is sometimes necessary to install stiffeners when the steel enclosure walls lack sufficient stiffness. The casing can also be covered with a padded rubber pad, which adds mass and is very effective at preventing the transmission of low-frequency sounds.

3. Overall soundproof shed
The overall soundproof shed is composed of detachable soundproof wall panels, roof panels, cooling fans and noise-reducing fire mufflers. When the system is installed, the perimeter and top of the entire computer room are enclosed with sound insulation panels to form a complete whole. A removable exhaust muffler is installed on one side of the diesel engine radiator, and a 55KW fan is installed in front of the diesel engine radiator to conduct the heat emitted by the radiator out of the noise reduction room. The original diesel engine muffler was replaced with a noise-reducing fire-proof muffler to improve the exhaust noise reduction effect. The overall noise reduction effect of the soundproof shed is good. The disadvantages are that the installation workload is large, the installation time is long, the energy consumption is high, and the output power of the diesel engine is reduced.

In general, the above are common oil drilling rig noise control measures. In addition to paying attention to noise reduction in petroleum equipment, companies should also pay attention to employees' personal hearing protection. Drilling employees must take effective personal protection measures when they are exposed to workplaces where the noise intensity is an 8-hour equivalent sound level >85dB(A). Hearing protection equipment includes earplugs and earmuffs. Enterprises should provide effective and practical hearing protection equipment. After employees wear hearing protection equipment, the actual 8-hour equivalent sound level they endure should be kept below 85dB(A), and the most accurate noise reduction effect is between 70dB(A) and 80dB(A). If exposure to noise levels reaches or exceeds an 8-hour equivalent sound level of 100dB(A), consider using double hearing protection.

SINOYQX’s oil and gas generator set noise reduction solution
1) Medium and high frequency sound-absorbing module, sound-absorbing melamine foam board
2) Full-range sound-absorbing module, pyramid sound-absorbing melamine foam board
3) Sound absorption and shock absorption module, EPDM composite melamine board
4) Fully customized modules according to noise source

For more information about SINOYQX Melamine Foam, please reach us at [email protected] or voice to us: +86-28-8411-1861.