other
HOT PRODUCT
  • Self-propelled carrier and tralier
    Self-propelled carrier and tralier

    ‌RockySea Petro Self-Propelled Carrier and TralierFeaturesRockySea Petro has developed a special workover rig chassis range from 6X6 to 14X14, which is compatible with the entire series of XJ250 to XJ850 workover machines. It can operate in various terrains such as roads, deserts, mountains, and swamps, with strong driving power, good off-road performance, and can work in the range of ambient temperature -45 ℃ to 50 ℃.Besides,the company also developed a desert off-road carrier. The driving type is

    VIEW DETAILS
  • Frac Wellhead And Christmas Tree
    Frac Wellhead And Christmas Tree

    ‌RockySea Petro Frac Wellhead And Christmas TreeIn the process of oil recovery, multistage fracturing of horizontal wells is currently the most advanced technology in the world and represents the development direction of oil and gas production technology. Multistage fracturing technology is to strictly control the number, diameter, and phase of perforation in several or more horizontal sections with better reservoir along the horizontal wellbore, according to the physical properties and the character

    VIEW DETAILS
  • Polished Rod
    Polished Rod

    ‌RockySea Petro Polished RodRockySea Petro can supply polished rods which comply with intl standard. They are manufactured through many processes including the testing, straightening and forging. Polished rods are made of high quality carbon steel and alloy steeldue to customer request. Ourpolished rods are exported to the United States, Canada, Europe, Africa and Middle East, and we establish cooperative relationships with international customers all over the world.Description The polished rod is a sp

    VIEW DETAILS
  • Gear Metering Pump
    Gear Metering Pump

    ‌RockySea Petro Gear Metering PumpGear metering pump is a kind of gear pump. Only specific gear pump can be called gear metering pump. At the same time, the gear metering pump is one kind of metering pump, so gear metering pump has metering characteristics. In order to meet the market demand at home and abroad, RockySea has successfully developed a gear metering pump after years of research and development.Select suggestionsThe main technical parameters of gear metering pump include displacement,

    VIEW DETAILS
  • Drilling Jar
    Drilling Jar

    ‌RockySea Petro Drilling JarApplicationRockySea Petro can provide three main types drilling jar: mechanical, hydraulic, and hydraulic.1. The combination of mechanical and hydraulic drilling jar absorbers combines the advantages of the above two shock absorber principles. Even if the hydraulic delayed shock absorber fails, the mechanical shock absorber can still be used, and the technical performance has been greatly improved, which is in line with the future development direction of shock absorber prod

    VIEW DETAILS

Superheated Oilfield Steam Boiler

Date:2024-05-06 Popularity:895

RockySea Petro Superheated  Steam Injection Boiler


  • Supercritical Oilfield Steam Injection Boiler
  • Desulfurization and Denitrification Oilfield Steam Boiler
  • Produced-water Oilfield Steam Generator
  • Superheated Oilfield Steam Boiler
  • High-dryness Steam Injection Boiler
Oilfield steam injection boiler, also known as wet steam generator, is a special steam injection equipment for heavy oil recovery in oil fields. It uses the heat generated by the combustion of gas or fuel oil to heat and vaporize water, generates high temperature and pressure wet steam to inject into the well, and heats the crude oil in the reservoir to reduce the viscosity of heavy oil, thus increasing the fluidity of heavy oil and greatly improving the recovery of heavy oil. RockySea Petro can design and produce various types of oilfield steam injection boilers.


Description

The Action of Superheated Steam

The viscosity of heavy oil is very sensitive to temperature. As long as the temperature rises by 8~9℃, the viscosity will decrease by 1 times. If high pressure superheated steam is injected into the reservoir for thermal recovery, not only the single well production can be greatly increased, but also the recovery can reach 50%~70%.The key to improve oil recovery is to improve the quality of steam injected into the reservoir. The higher the dryness of the steam, the greater the heat carried by the steam per unit weight, the higher the effective heat injected into the reservoir and the higher the production and recovery. According to relevant data, after superheated steam huff and puff technology is used in heavy oil recovery, the output can be increased by 3~8 times and the recovery can be improved significantly. Therefore, superheated steam injection is an effective way to increase the yield of heavy oil.

eor-steam-boiler

How the Superheated Oilfield Steam Boiler works

The radiation heat exchange section, convection heat exchange section and water-water heat exchanger in the front stage of superheated steam injection boiler are basically the same as the normal one in structure. 70-80% wet steam is produced in the front stage during heat exchange. Then, about 99% of the dry steam is separated by the high-efficiency steam-water separator (14) and fed to the superheated section for heating, which further increases the steam temperature to become superheated steam (460 ~500℃). The superheated steam is then mixed with the unsaturated brine separated from the steam-water separator. After mixing, the temperature drops to about 370 C and the steam dryness is more than 90%. Finally, high-dry steam is injected into the well.

Main process introduction-superheated steam injection boiler

superheated steam injection boiler

Basic structure -superheated steam injection boiler



1-Inlet pipe 
2-High-pressure pump 
3-Control cabinet 
4-Power cabinet 
5-Fan 
6-Burner 
7/8-Hot air duct 
9-Chimney 
10-Air preheater 
11-Convection heat exchange section 
12-Overheating section 
13-Main steam valve 
14-Steam-water separator 
15-Ladder 
16-Transition 
17-Radiation section outlet pipe 
18-Radiation section

Its main advantage is that the steam process from 80% to more than 90% occurs outside the boiler body. It effectively avoids the danger of tube burst due to uneven salt precipitation in heat exchanger tubes in furnace caused by high heat flow density of flame radiation/flue gas convection heat exchange.



Superheated Oilfield Steam Boiler Special Component

1.Convection Section & Overheating Section



1). The convection section in the upper part realizes the heat transfer from low temperature water to high temperature water. 
2). The lower high temperature convection section realizes the convection heat transfer process from saturated steam to superheated steam. Because the heat flux density here is lower than that in the radiation section, coupled with the scouring effect of high velocity of superheated steam, a small amount of saturated water will not cause internal salt precipitation and scaling. 
3). The convective heat transfer area is increased, and the exhaust gas temperature is effectively reduced to meet the national energy conservation and environmental protection requirements. 
4). The control technology of dryness and oxygen content in flue gas is applied to ensure the stable and balanced operation of thermal efficiency, so that the steam injection boiler is always in the state of high thermal efficiency, so as to achieve the purpose of energy saving and efficiency increasing. 

2.Steam-water Separator



The steam-water separator is a spherical or vertical vessel with built-in high-efficiency separator. A defoaming separator is set at the steam outlet to further separate small water droplets in the steam. The figure shows a newly produced 15t/h steam-water separator. Four-stage steam-water separator is used internally, which makes the separation efficiency up to 99% and meets the steam quality requirements of the superheater. Steam-water mixer utilizes the differential pressure flow suction effect between superheated steam and separated unsaturated brine to spray separated brine into superheated steam in a foggy manner and mix it with superheated steam, thus reducing the temperature of superheated steam and keeping the final steam in an overheated state.

3. Burners



Oil and Gas Burners. Model: KRBY1040 Brand: UNIGAS Origin: Italy Output power: 2550-13000kW Atomization mode: air/steam atomization The burner’s fan is highly integrated with the combustion system, providing programmed ignition, purge, flame monitoring and flame-out protection to adjust fuel consumption as load changes.

4. High Pressure Plunger Pump



Use high pressure five cylinder plunger pump Model: 5GP125-15/21 Brand: Ningbo Heli Output power: 132 kW Use media: purified produce-water Operating temperature: 60-80℃ Output pressure: 21MPa

5. Electronically Controlled Level Regulation Valve


Model Number: DMC65 B1-16 
Brand: DREHMO 
Origin: Germany 
Valve body nominal path: DN32 
Valve body origin: Dalian Zhongyi

Superheated Oilfield Steam Boiler Parameter

Rated evaporation: 23t/h 
Fuel:  Crude oil/Natural gas 
Rated working pressure:  17.2MPa 
Boiler thermal efficiency: ≥91% (fuel oil)/≥92% (fuel gas) 
Rated working temperature: 360℃ 
Operating steam superheat: ≥5℃ 
Operating exhaust temperature: 160℃ (fuel oil)/130℃ (fuel gas) 
Control method: PLC + touch screen + industrial computer 
Loading method: Skid/Vehicle



Superheated Oilfield Steam Boiler Features

  • The water quality requirements are equivalent to subcritical boilers, lower than supercritical boilers;
  • The mixing/overheating process is carried out in the non-heated section outside the boiler, and the safety is guaranteed.
  • The enthalpy value of superheated steam is high, the steam injection efficiency is higher, the oil production volume in the steam huff and puff period is 1.2 times that of ordinary boilers, and the oil-steam ratio is 2.3 times that of ordinary boilers;
  • The structure and control are more complicated than ordinary boilers, and itsone-time investment is higher;

RockySea Petro Copyright © 2008-2025 Inc. SITEMAP