48results about How to "Achieve stable production" patented technology

The invention relates to the technical field of fracture acidizing of oil fields, in particular to a tip screen-out fracturing method. The tip screen-out fracturing method comprises the steps that firstly, a prepad fluid is pumped into a fracturing formation; secondly, and when a major fracture of the fracturing formation grows to a target fracturing design value, efficient filtrate-loss reducingliquid is pumped; thirdly, when the efficient filtrate-loss reducing liquid is pumped and pressure is increased, sand-carrying fluid is pumped; and fourthly, displacing liquid is injected, and oil andgas production is tested. According to the tip screen-out fracturing method, when the efficient filtrate-loss reducing liquid is pumped, it is not required to change the construction displacement, the construction procedure is simple, and field operation is facilitated. The efficient filtrate-loss reducing liquid contains a cleanup additive, a clay stabilizer and a gel breaker, the damage of a filtrate to the formation can be reduced, and after five hours, the residual rate of the filtrate-loss reducing liquid is about 30%; compared with the prior art, the fracturing yield of the tip screen-out fracturing method is increased by 80%-160%, and the stable production period after fracturing is prolonged by 2-3 time; and after the method is adopted, the yield-increasing effect obtained after fracturing is obvious, and no phenomenon of near-well pressure channeling occurs.

The invention belongs to the field of crop cultivation, and particularly relates to a soil microbial regulator for enhancing plant stress resistance. The soil microbial regulator is prepared from thefollowing components in parts by weight: 30 to 50 parts of coco coir, 30 to 50 parts of eucheuma, 10 to 30 parts of mushroom dreg, 20 to 30 parts of guayule and 0.4 to 1.6 parts of complex microbial inoculant. According to the invention, waste mushroom dreg and coco coir are used as raw materials; the guayule and the eucheuma are added; under the action of a complex microbial inoculant, fermentation is performed, the soil microbial regulator prepared by fermentation can regulate the soil structure and improve the soil microbial structure, provide continuous nutrition for crop growth, significantly promote crop growth, improve the resistance of crops to diseases and insect pests, effectively reduce the morbidity of crops, enhance the resistance of crops, achieve the purpose of increasing both production and income, and achieve high and stable yield of crops.