64results about How to "Resume normal production" patented technology

The invention relates to a mining technology for the petroleum, natural gas and the coal seam gas, in particular to a compression fracture process which avoids the fracturing fluid pollution and solves the problem that the fracture conductivity is reduced caused by the dense filter cake formed on the surface of the strata fracture by the thickener added in the fracturing fluid applied in all the compression fracture constructions found in the prior art. The construction steps include that the pad fluid is injected into the oil gas storage strata; the sand-laden fluid is injected continuously when the oil gas storage strata generates fractures; subsequently, the displacement fluid is injected; then the pump on the ground is stopped; 60 minutes later after the fracture closing time T3 and the pressure is lower than the fracture closing pressure P3, the oxidant solution such as the chlorine dioxide result solution, the potassium permanganate, the hydrogen peroxide solution or the persulphate which can degrade the polymers is injected into the fractures as the fracturing post pad fluid; finally, the displacement fluid is injected to extrude all the compression fracture post pad fluid to the strata fractures. The compression fracture process can radically avoid the pollution block of the fracturing fluid, exert the potential of the fracturing technology and increase the yield.

The invention relates to a method of processing and mass-producing green whole grains. According to the method of processing and mass-producing green whole grains of the present invention, the green whole grains is so smooth and chewy that they can be convenient to eat. Further, since the green whole grains are tinged with clear green, they can provide freshness visually. Furthermore, their nutrients are very so abundant that green whole grains good for health and prevention of adult diseases can be processed and mass-produced. The method of processing and mass-producing green whole greens, is characterized by comprising: a blanching step of discharging the green whole grains stored in the storage tank and steaming the discharged green whole grains for 30 to 120 seconds with water or steam at a temperature ranging from 88 to 102 DEG C.; a cooling step of rapidly cooling the green whole grains which have undergone the blanching step at a temperature ranging from 1 to 7 DEG C.; a cold air dehumidifying step of blowing air to the green whole grains cooled to a low temperature through the cooling step to remove excessive moisture permeated into surfaces of the green whole grains; and a hot air drying step of applying hot air of a low temperature ranging from 35 to 50 DEG C. to the green whole grains from which the excessive moisture has been removed through the cold air dehumidifying step to dry the green whole grains.

Disclosed are devices for urine voiding postponement, and methods for treating conditions such as central diabetes insipidus, enuresis, nocturia, urinary frequency or incontinence. The devices deliver a desmopressin flux through the skin of a patient in a low dose amount just necessary to achieve a desired anti-diuretic effect without undesirable side effects such as hyponatremia. The devices are designed to permit a state of normal urinary production to return quickly after the desmopressin flux is terminated.

The invention relates to a pilot milling tool for repairing a casing by utilizing a pilot milling cone made of high-strength cemented alloy milling materials and a method thereof. The structure of the pilot milling cone comprises a connector, a body, milling materials on the body, a circulating water channel, a circulating water hole, a pilot hole and a central hole. The casing repairing method proposes the casing repairing method for using serialized pilot milling cone to mill and get through the channel by the guiding function of a cone pilot part at the front end and the correcting function of a cylinder part at the back end and can effectively prevent damage to the casing or ejection of the milling cones from the casing during the milling construction. The casing repairing method and the tool thereof are applicable to casing-damaged wells which are severely bended and dislocated.

Disclosed is a method for pressing a low-pressure oil and gas well. The method comprises the steps that firstly, alkaline guanidine gum liquid with the appropriate concentration and oil-soluble temporary plugging agents are prepared according to the well conditions (wellbore volume, gas production rate and the like); the oil-soluble temporary plugging agents and the guanidine gum liquid are mixed and then sufficiently and evenly stirred, and the temporary plugging agents are suspended in the guanidine gum liquid; the matched process, a ground pipeline and equipment are adopted to feed the mixture of the oil-soluble temporary plugging agents and the guanidine gum liquid into a stratum; the matched pipe column process is adopted to achieve the aims that the guanidine gum liquid with the temporary plugging agents can block and shield the stratum, leakage of well pressing liquid injected in a shaft is avoided, meanwhile, alkaline guanidine gum liquid has the better air-tight sealing performance and better safety for acid gas (hydrogen sulfide, carbon dioxide and the like), the shaft is filled with the alkaline guanidine gum liquid, the stratum gas is prevented from entering the shaft, it is ensured that well pressing succeeds, and the subsequent well repairing operation is facilitated. The method for pressing the low-pressure oil and gas well has the advantages that a near well zone nearby a shot hole is effectively blocked, the well pressing liquid is prevented from leaking, and entering the stratum, the stratum gas is prevented from entering the shaft, and it is ensured that the well repairing operation is smoothly carried out.