75results about How to "Effective transformation" patented technology

The invention provides a regional forced gas extraction method for a single low-permeability outburst thick coal seam. The regional forced gas extraction method comprises the steps of (a) excavating a rock gangway in a rock fissure zone and drilling a lower-position seam through hole downwards, (b) drilling a high-position seam through hole downwards in the rock gangway, (c) starting a high-pressure water-injection pump station, performing hole expanding operation on the coal seam through sections of the drilled holes under the conditions of the water pressure of 10-20MPa, the flow rate of 8m<3> / h and the single-hole coal output greater than 5t, (d) sealing the drilled holes and carrying out drainage strip networking extraction operation after the hole expanding operation is finished, (e) after the extraction is up to the standard, carrying out tunneling operation of an air return way and a transportation roadway, and meanwhile, drilling a bedding pre-extraction hole in the working face and carrying out the hole sealing and networking extraction operations, and (f) continuously extracting the gas of the goaf in the rock gangway during the recovery of the working face. The regional forced gas extraction method is capable of converting a high-gas outburst coal seam into a low-gas outburst risk-free coal seam, comprehensively guaranteeing safe production of the working face, and meanwhile, obviously increasing the coal roadway tunneling speed.

A sand-controlling modified oil fertilizer is composed of the components with the following weight content: sewage sludge 5-20%, stalk 20-60%, feces 10-40%, bagasse 5-10%, hogwash 5-10%, and water-loss reducer 5-40%; the oil fertilizer is obtained by preparing the lime sludge, stalk, feces, bagasse and hogwash with the above content to prepare compost and finally adding the water-loss reducer. The sand-controlling modified oil fertilizer provided by the invention can effectively treat the household rubbish to facilitate the rubbish become a fertilizer which can control the desert excellently and improve the desert oil quantity, at the same time an approach for effectively settling the garbage is provided and a virtuous circle is formed.

The invention discloses a hydraulic sand jet perforation, fracture and sand filling integrated technological method which is designed for meeting the requirement for hydraulic sand jet perforation and fracture integrated work and ensuring the construction capacity of a pipe column under the large discharge capacity condition. The method of fracturing the lower layer through hydraulic jet, filling the lower layer with sand, sealing the lower layer and then conducting upper layer section hydraulic jet fracture construction is adopted, and therefore it is ensured that the lower layer is effectively refitted, a pipe column packer is prevented from being damaged, dragging and fracture of multiple sections of a horizontal well of an oil field can be executed, large-discharge-volume fracture refitting, with the high anisotropism, the large physical difference and the dense oil deposit, between reservoirs can be achieved, the refitting effect of the horizontal well with the dense oil deposit is improved, and the aim of increasing the yield is achieved. By means of a hydraulic safe connector on the technological pipe column, the pipe column above the connector can be conveniently jacked up when the pipe column is stuck.

The invention discloses a ball-throwing type layered sand control process pipe column and a method thereof. The pipe column comprises a sand control outer pipe and a sand control inner pipe placed inside the sand control outer pipe, wherein the sand control outer pipe comprises a top suspension setting mechanism, a reverse well-flushing device, external filling devices, screen tubes and a pipe plug from top to bottom, and the top suspension setting mechanism, the reverse well-flushing device, the external filling devices, the screen tubes and the pipe plug are connected in sequence. The sand control inner tube includes a releasing mechanism, inner filling devices, a switch mechanism and a bottom positioning device from top to bottom, wherein the releasing mechanism, the inner filling devices, the switch mechanism and the bottom positioning device are connected in sequence. The number of the inner filling devices is consistent with that of the external filling devices in each oil reservoir, and the inner filling devices and the external filling devices correspond to each other in the radial direction. Internal well-flushing valves are installed between every two inner filling devices. The ball-throwing type layered sand control process pipe column and the method thereof can realize completion of layered sand control construction of a multiple zone by one-trip pipe column, ensureindependence between layers, and give full play to the productivity of each small layer to achieve the best sand control production effect.

The invention discloses a horizontal well one-time multi-section open-hole gravel pack sand-proof well completion pipe string and a method. The horizontal well one-time multi-section open-hole gravel pack sand-proof well completion pipe string comprises a well completion pipe string body and a pack sand-proof service pipe string body, wherein the pack sand-proof service pipe string body is arranged in the well completion pipe string body; the pack sand-proof service pipe string body comprises a drilling-free plug stage collar, a packing sliding sleeve assembly and sand filtering tubes, and the drilling-free plug stage collar, the packing sliding sleeve assembly and the sand filtering tubes are sequentially connected from front to back; the pack sand-proof service pipe string body comprises a liquid separation sealing device, a double-layer pipe, an upper positioning device, a packing assembly, a circulation assembly, a lower positioning device, a closing tool and an opening tool which are sequentially connected from the front to the back. At least two sand filtering tubes are arranged, and a heat-sensitive compensator and an open-hole packer are connected between every two sand filtering tubes. The tail end of the well completion pipe string is connected with a well washing valve. One-time multi-section packing can be achieved, infinite series packing can be achieved, segmented packing is achieved outside a pipe in a real sense for the first time, and the packing effect is improved. Horizontal section segmentation is completed, and requirements of post-selective production, segmented steam injection and other measures can be met.

The invention aims at providing a miniature light strength modulation element with high efficiency which can implement the strength modulation of lights that are transformed into second higher harmonics. An optical guided wave road in certain direction is formed on the main surface of a substrate which is made form nonlinear optical crystal. In the optical guided wave road, a polarized structure in the thickness direction of the substrate is formed in the optical guided wave road direction in a way that the polarities periodically and interactively reverse. Thus, in the optical guided wave road, a first and a second wavelength transforming parts which respectively transform part of emitted infrared lights into the second higher harmonics are formed. In addition, a first phase adjustment part which is equipped with a pair of relatively configured electrodes for clamping the optical guided wave road is formed between the first and the second wavelength transforming part.

The invention discloses an oil-gas drilling production increasing combined operation device and method. The device comprises a high-pressure pump, high-pressure coiled tubing and a downhole drilling tool combination, wherein the downhole drilling tool combination comprises a drill bit and a downhole cutting nipple; the drill bit is connected with the high-pressure coiled tubing, and a rock breaking nozzle and a thrust nozzle are formed in the front end and the rear end of the drill bit correspondingly; the downhole cutting nipple comprises a shell and a valve body; the valve body is provided with an axial hydraulic channel and a radial hydraulic channel; a jet flow channel is formed in the shell and provided with a radial jet flow nozzle; a drilling water channel is further formed in the shell; and the axial hydraulic channel communicates with the rock breaking nozzle of the drill bit. When the valve body moves in the shell to enable the axial hydraulic channel to communicate with the drilling water channel, the radial hydraulic channel does not communicate with the jet flow channel; and when the radial hydraulic channel communicates with the jet flow channel, the axial hydraulic channel do not communicate with the drilling water channel. Compared with an existing oil-gas exploitation technology, the oil-gas drilling production increasing combined operation device and the method have the advantages that (1) operation efficiency is high; (2) the production increasing effect is good; (3) reservoir adaptability is wide; and (4) the environmental influence is less.

The invention provides a modified zeolite molecular sieve as well as a preparation method and application thereof. The modified zeolite molecular sieve is obtained through modification treatment on anX type molecular sieve, wherein the modification treatment refers to the modification on the X type molecular sieve in an organic acid alcoholic solution. The zeolite molecular sieve provided by theinvention can be used as an adsorption agent for hopance in a geological sample, and is used for enriching the hopance in the geological sample. The zeolite molecular sieve can be subjected to effective and controllable modification according to requirements.

The invention discloses a method for changing the crystal form of a lithium-containing aluminum electrolyte, and relates to the technical field of aluminum electrolyte extraction and recovery. It includes the following steps: S1, pulverizing the aluminum electrolyte containing lithium; S2, mixing the additive with the aluminum electrolyte powder, and mixing uniformly to obtain a mixed material, wherein the additive includes an alkali metal oxide other than lithium, and is baked at a high temperature One or more of the alkali metal oxo acid salts other than lithium that can be converted into alkali metal oxides, the alkali metal fluorides and additives contained in the aluminum electrolyte in the mixed material can be converted into The molar ratio of the sum of alkali metal fluorides to aluminum fluoride is greater than 3; S3, roasting the mixed material at high temperature. The invention can convert the insoluble lithium salt in the aluminum electrolyte into a soluble lithium salt, improves the leaching rate of the lithium salt, improves the purity of the aluminum electrolyte, and reduces the energy consumption of electrolytic aluminum production.

The invention provides a load control and multi-channel time-sharing charging electric energy composite management system, including a main control module, a data acquisition module, a time module, a meter reading module, an execution module, a display module, a communication module, a keyboard control module, and a power supply module , the data acquisition module, time module, meter reading module, execution module, display module, communication module, keyboard control module are connected with the main control module and the power supply module, and the meter reading module is connected with each electric meter in the grid. A method implemented by using the above system, through the calculation and analysis of the data obtained by the signal acquisition module of the system, the power measurement and control are performed; combined with the meter reading module and the time module, it manages multiple electricity bills that do not have the time-sharing charging function. It has the functions of multi-rate meter communication, time-of-use billing, demand statistics, load shedding, etc. The invention has the characteristics of simple operation, convenient use, favorable transformation, cost saving and good economic benefit.

The invention relates to an exhaust gas aftertreatment system for an internal combustion engine (10), in particular for an internal combustion engine (10) which is charged by means of a turbocharger (30) and spark-ignited by means of spark plugs (16). A particulate filter (24) and an electrically heatable three-way catalytic converter (26) downstream of the particulate filter (24) are arranged ina position close to the engine in an exhaust gas system (20) connected to an outlet (12) of the internal combustion engine (10). A further three-way catalytic converter (28) is arranged in the underbody position of the motor vehicle downstream of the electrically heatable catalytic converter (26). According to the invention, the electrically heatable three-way catalytic converter (26) is heated electrically after engine start, and the particulate filter (24), the electrically heatable three-way catalytic converter (26) and the further three-way catalytic converter are additionally heated by the exhaust gas flow from the internal combustion engine (10). The electric heating of the electrically heatable three-way catalytic converter (26) is switched off when the electrically heatable three-way catalytic converter (26) has reached its light-off temperature.