-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Recently, the Dongxin operation area of Shengli Oilfield Downhole Operation Center optimized the application of new technology to improve the production increase of Xin 251 Incline 5 Well, increasing the daily oil volume by 25 tons, and achieved good oil increase results
.
The Xin 251 Incline 5 Well was initially a water injection well.
In this transfer to an oil well, the up-and-back perforation produced Sand 1 + Sand 2 with a well section of 2035.
2-2208.
2 meters and a permeability of 17-1318 millidarcy
.
The well has many perforated oil layers, a large span, and serious heterogeneity.
The construction staff carried out the optimization of targeted deblocking measures.
One is the wellbore cleaning treatment.
According to the type of wellbore scaling, through laboratory evaluation work, the descaling acid solution formula is optimized, and the acid foam is used as the pickling process to dissolve and loosen the casing.
The cemented scale blocks on the wall are then scraped and washed with large displacement to build a clean environment in the wellbore to eliminate the factors that induce secondary pollution
.
The second is to optimize the squeezing construction pipe string, according to the principle of similar physical properties, group multiple perforation layers into two well sections, and implement layered acid squeezing and differentiated treatment
The experience and practice of optimizing the application of the new technology and putting into production in the Xin 251 inclined 5 well has important reference significance for the stimulation and improvement of other similar oil wells
(Bi Guoping and Gou Xiufeng)
