New DZL type water-Fire Tube Boiler is a new eco-friendly and energy-saving product co-developed by our company and Professor Li Zhiguang, a famous boiler export, Professor of Harbin Institue of Technology and Director of Beijing Zhiguang Boiler Research Institute, with 30 years research and test, suitable for China and overseas markets. It is called as "Revolution of Industrial Boilers".This type boiler can burn many kinds of fuels, specially furnace design for coal and biomass fuels. Coal Steam Boiler,Industrial Coal Steam Boiler,Industrial Coal Fired Steam Boiler,DZL Coal Steam Boiler,SZL Coal Steam Boiler Henan Yuanda Boiler Co., Ltd. , https://www.industrysboiler.com
Core technology:
1.New "a" type furnace arch
2.Spirally corrugated fire tubes
3.Wing-shape flue
4.Steam-Water seperating equipment
5.Inertia gas-dust separtion
6.Hot water boilers adopt the unique backwater ejection technology
7.Scientific feed air layout technology
The shallow super-heavy oil horizontal well large-gradient pump was successfully developed
Shengli Oilfield Spring Plant technicians invented the horizontal well of the super-heavy super-thick oil to develop the high-grade pump , and the field test was successful.
The proven oil reserves of the Chungyou oilfield in the west margin of the Junggar Basin are 8000 × 104t. The reservoir has a buried depth of 500m and a reservoir thickness of 3m. The reservoir temperature is 26 ℃. The viscosity of crude oil under reservoir conditions is as high as 90,000mPa · s and is naturally bitumenous flow. The study found that the content of C + H in crude oil of Chunfeng Oilfield is as high as 97%, and its thermal sensitivity is strong. The viscosity of degassed crude oil at 50 ℃ drops to 4050mPa · s, which is suitable for thermal recovery. The crude oil has poor underground flow ability, low oil reservoir energy and large formation heat loss, so conventional steam injection development technology is difficult to be successful. Since 2010, Chunfeng Oilfield successfully implemented the scale development of thin and light super-heavy oil using horizontal well steam huff and puff, viscosity reducer and nitrogen (HDNS technology). However, during the development process, it is gradually exposed the difficulty of shaft well lifting. The main problem is the slow release of polished rod and the low fluid production. Due to the shallow burial depth and the high lateral wellbore angle, the pump depth can only reach down to 500m, making it difficult to establish an effective production pressure differential. Due to the difficulty of establishing an effective production pressure differential, high underground storage rates increase heat losses. Amplify the production pressure, improve fluid strength.
Shengli Oilfield New Year Plant Professor Zhu Guilin senior engineer to lead the technical staff through the matching anti-corrosion superexpress sucker rod, anti-wear coupling, anti-wear deputy, anti-off and anti-corrosion heavier rod, the pump was successfully extended to the level of paragraph. For example, the depth of the well 601P71 is 493.0-498.0 m (vertical depth), the formation point is 210.0 m, the pump depth is increased from 475.5 m to 678.2 m, the maximum inclination angle is increased from 54.1 ° to 91.2 °, and the submergence is from 45 m to 105 m. The daily production of single well increased from 17t / d to 27t / d, the number of days of production increased from 66d to 78d, and the cycle oil production increased from 685t to 872t.
At present, the technology has been popularized in 20 wells of Chunfeng Oilfield, and the average pump depth has been increased from 509m to 669m. Compared with the same well before and after the same well, the average single-well cycle liquid production increased from 1274t to 1915t, an increase of 50%; average single-well cycle oil production increased from 463t to 517t, an increase of 12%; taking into account the 20% decrease of 147t , An increase of 40%. Compared with the adjacent wells, the average production rate of single-well period increased from 1402t to 1915t, an increase of 36%. The average single-well period oil production increased from 491t to 517t, an increase of 5%. Thus solving a technical problem restricting the efficient development of thin and super-heavy oil, and providing strong technical support for the efficient extraction of liquid from the steam flooding stage.