16results about How to "Improve water injection efficiency" patented technology

The invention discloses an automatic measuring and adjusting method and system for flow of an intelligent separate injection well, and relates to the technical field of layered flow allocation. The method comprises the steps that the residual oil saturation of each layer in an oil reservoir is calculated based on historical and real-time data of the oil reservoir, and the initial water injection rate is distributed according to the residual oil saturation of different layers; and predicting an oil-water output ratio by using a water drive curve model according to the distributed initial water injection rate, and dynamically adjusting a water injection strategy in combination with actual production data for implementation. According to the method, the seepage rate and the pressure distribution are calculated by combining the physical constraint model and the Darcy law, so that the scientificity of regulation and control of the water injection rate of each layer is improved, and pressure balance and seepage path optimization of each layer in the oil reservoir development process are ensured; the real-time water injection strategy is optimized by dynamically predicting and adjusting the oil-water output ratio through the water drive curve model, the water injection rate is dynamically adjusted through the nonlinear prediction control model, it is ensured that the system can still operate stably in the complex dynamic environment, and the water injection efficiency and the recovery efficiency are remarkably improved.

The utility model relates to the technical field of salt mine drilling accessories, concretely to salt mine drilling water solution mining anti -blocking water injection head, including the water injection pipe head of salt mine drilling water solution mining, the top end coaxial of water injection pipe head is provided with the connecting socket, the bottom coaxial of water injection pipe head is installed with the water injection end, the utility model discloses the water injection pipe head and the water injection cavity that sets up inside it are set up, cooperate the anti -blocking water injection inner tube of embedding in the bottom of water injection pipe head and the spiral feeding rod of installing in the anti -blocking water injection inner tube, make when salt mine drilling water solution mining, the deceleration motor can drive spiral feeding rod to rotate continuously in the anti -blocking water injection inner tube, effectively prevent solid particles or impurities from accumulating and blocking at the water injection end when salt mine drilling, the water inlet hole of anti -blocking water injection inner tube outer wall opening guarantees the water in water injection cavity can smoothly enter anti -blocking water injection inner tube and transport to the water injection end, and the connecting socket of water injection pipe head top end coaxial setting is convenient for with external water injection equipment stable connection.

The invention discloses an anti-impact downhole packer for perforation, and particularly relates to the field of oil and gas well development. A limiting sliding sleeve, a disc spring and a damping rubber cylinder are arranged on the damping mechanism; a centralizing mechanism is arranged at the upper end of the damping mechanism and consists of a centralizer, a spring piece and a centralizer friction plate; a deblocking mechanism is arranged in the righting mechanism and consists of a lower mandrel and a track transfer ring; the setting mechanism is arranged at the upper end of the righting mechanism, the two mechanisms are connected through the orbital transfer ring, and the setting mechanism is provided with an open hoop, a clamping sliding sleeve and a slip; a sealing mechanism is arranged at the upper end of the setting mechanism and consists of two rubber sleeves, and a top shoe and a bottom shoe are arranged above and below the rubber sleeves; an anchoring mechanism is arranged at the upper end of the sealing mechanism, and a hydraulic anchor slip and an elastic limiting structure are arranged at the upper end of the sealing mechanism; when facing underground perforation, the anti-impact underground packer for perforation can be automatically started, the influence of high-strength vibration and impact generated by underground perforation on the performance of the packer is prevented, the setting efficiency of the packer is improved, and the drilling cost is reduced.

The invention relates to the technical field of water injection equipment, in particular to an automatic water injection device for a heat dissipation module copper pipe and a water injection method thereof.The automatic water injection device for the heat dissipation module copper pipe comprises an operation platform, a material bearing box and a material bearing frame are arranged on the operation platform, and a feeding assembly is arranged in the material bearing box; the feeding assembly can lift the copper pipe in the material bearing box. A feeding assembly is further arranged on the operation platform, the feeding assembly comprises a reciprocating structure and a material taking frame, and when the reciprocating assembly acts, the material taking frame is matched with a guide structure arranged on the operation platform, so that the copper pipe lifted by the feeding assembly can be transferred to the material bearing frame; in the reset process of the material taking frame, the material taking frame can drive the extrusion assembly on the operation platform to extrude the copper pipe on the material bearing frame; and a driving assembly is further arranged on the operation platform, the driving assembly is connected with the feeding assembly and the reciprocating structure and can drive the feeding assembly and the reciprocating structure to alternately act, and therefore the copper pipes in the material bearing box can be transferred to the material bearing frame.

The utility model relates to the technical field of well mouth water injection devices, and discloses a coal bed gas water injection well mouth device which comprises a main flow pipe and an adjusting assembly, the adjusting assembly is located on the outer side of the main flow pipe and comprises a water outlet, the water outlet is formed in the outer end of the main flow pipe, and the outer end of the water outlet is fixedly communicated with a water inlet pipe. A containing groove is formed in the outer end of the water inlet pipe. According to the coal bed gas water injection wellhead device, by installing the adjusting assembly, when water is injected into a coal bed, the humidity and the water injection range of surrounding coal bodies after water injection can be transmitted to the control panel through the humidity detector, and then through cooperation of a motor, a valve and other components, part of too-humid coal bodies can be reduced to be injected into a water source; the water resource waste caused by waste of a large amount of water resources on the coal body with the humidity exceeding the expected humidity due to the fact that water is injected into the media with the humidity exceeding the expected humidity of the surrounding part of the coal body is avoided, and the practicability of the device is improved.

The utility model relates to the technical field of fitness equipment, in particular to a weightlifting water bag which comprises a bag body, the bag body comprises an outer bag body and an inner bag body, the inner bag body is arranged in the outer bag body, the end of the inner bag body is fixed to the inner wall of the outer bag body, the inner bag body divides the inner space of the outer bag body to form an inflation bin and a water storage bin, and the inflation bin is communicated with the water storage bin. The end face of the outer bag is provided with a water injection port and an inflation port, the water injection port is communicated with the water storage bin, and the inflation port is communicated with the inflation bin; the weightlifting water bag has the advantage that the use stability of the weightlifting water bag is improved.

The invention discloses a well selection method and system for ultra-low permeability reservoir water injection well updating, and belongs to the technical field of oilfield development. The well selection method comprises the following steps that a target oil reservoir water injection well updating potential evaluation system is established; obtaining index parameters in the target oil reservoir water injection well update potential evaluation system corresponding to the target oil reservoir water injection well update candidate well, and normalizing the index parameters; and determining a potential comprehensive evaluation index of the updated to-be-selected well of each water injection well of the target oil reservoir, and determining a planned implementation well according to descending order arrangement. The method can solve the problems of low manual well selection efficiency, high individual subjectivity and large result difference at present, and ensures the implementation effect of updating of the water injection well.

The invention discloses a coal seam permeability increasing type water injection method, and belongs to the technical field of coal mining. The method comprises the steps of drilling construction, primary gas extraction, acid liquid pressure operation, alkali liquid pressure operation, secondary gas extraction, drilling flushing operation and surfactant solution injection operation. According to the method, based on the advantages and disadvantages of a water injection source and drilling selection, the water injection source and the drilling selection are innovatively combined, mine water subjected to softening treatment is used, a synergistic surfactant is added, intermittent circulating water injection is adopted, the wettability of a coal seam can be improved, and the coal seam quality is improved. The pressure of part of water-deficient areas can be effectively relieved, and the utilization rate of water resources is increased. According to the method, the anti-reflection drill holes are selected, on one hand, the gas extraction rate before water injection can be improved, on the other hand, construction is flexible, and the coal seam permeability can be improved so that water can be more evenly injected into the coal seam.

The utility model discloses a removable integrated intubation water injection bridge plug, which comprises an upper joint, a hydraulic cylinder, a mandrel, a piston, a push cylinder, an intubation tube, a bridge plug central tube and a setting mechanism, and the upper hydraulic cylinder is sleeved on the periphery of the middle lower part of the upper joint and is fixed through an anti-setting shear pin; an upper mandrel is screwed below the upper joint, and a cylinder bottom of an upper hydraulic cylinder is sleeved on the periphery of the upper mandrel; the upper part of the lower mandrel is connected with the lower end of the upper mandrel; the upper expanding section of the lower mandrel is connected with the piston; the lower hydraulic cylinder is connected with the upper hydraulic cylinder, the push cylinder is connected to the lower end of the lower hydraulic cylinder and abuts against the position above the setting mechanism, and the insertion pipe is connected to the lower end of the lower mandrel. The bridge plug central pipe sleeves the periphery of the insertion pipe and is connected with the insertion pipe through a releasing shear pin; the setting mechanism is sleeved on the periphery of the bridge plug central pipe, and the parallel ring guide shoe is screwed at the lower end of the bridge plug central pipe; the sliding sleeve check valve is inserted into the lower port of the bridge plug central pipe and is fixed through a sliding sleeve shear pin. According to the tool, bridge plug setting and intubation water injection can be completed by one tubular column, and drilling and grinding can be used for unblocking during unblocking without being influenced by shaft scaling and corrosion.

The invention relates to a tubular column structure of an inverted electric submersible pump. The tubular column structure comprises an oil pipe, an inverted electric submersible pump assembly and an injection oil pipe, the oil pipe and the injection oil pipe are fixedly connected with the upstream end and the downstream end of the inverted electric submersible pump assembly respectively; the oil pipe penetrates through the water collection layer, and the injection oil pipe penetrates through the injection layer; formation water of the water collection layer is pressurized through the inverted electric submersible pump assembly and flows out through the injection oil pipe to be injected into the injection layer, and therefore the purpose of supplementing energy to the stratum is achieved. By means of the structure, formation water of the water outlet layer can be directly reinjected into the stratum, compared with a traditional water injection system, the water injection system does not need to build a water source well station, a water injection station and other stations in the traditional water injection system, investment of a large amount of equipment and personnel can be saved, meanwhile, the water injection efficiency and quality can be improved, and good generalizability is achieved.

The invention discloses an intelligent calculation method for the injection allocation amount of a water injection well based on big data and artificial intelligence. The intelligent calculation method sequentially comprises the following steps that S1, data related to water injection are collected and preprocessed; s2, time sequence features are extracted and optimized; s3, establishing a supervised learning model and performing training; s4, optimizing the supervised learning model by adopting a genetic algorithm; s5, verifying and adjusting the supervised learning model; and S6, deploying the verified model in a production environment to calculate the injection allocation quantity of the water injection well. Through efficient data management, an intelligent algorithm and model analysis, the injection allocation amount of the water injection well can be calculated timely and accurately, and the water injection effect can be predicted, so that the oil field production efficiency is improved, the cost is reduced, and intelligentization and benefit maximization of oil field development are realized.

The present invention belongs to the technical field of coal seam water injection and dust suppression, and in particular, relates to a biological pore expansion and wetting agent, a preparation method thereof, and an application thereof. The biological pore expansion and wetting agent of the present invention comprises the following components: an acid-producing bacterial group, a nutrient substance, a biological surfactant, and ethanol wastewater. The present invention enriches acetic acid bacteria from the vinegar mash discarded from the vinegar brewing industry under non-sterile conditions, mixes it with a culture solution containing ethanol wastewater to prepare a biological pore expansion and wetting agent, and injects it into the coal seam water injection hole, so that the acetic acid bacteria group adheres to the surface of the coal seam to oxidize ethanol to produce acetic acid, a corrosive substance, to expand the pores of the coal seam. The present invention uses an acetic acid bacteria culture solution containing ethanol wastewater for treatment, which can effectively solve the problem that the coal seam is not easily wetted by water and difficult to penetrate, improves the water injection efficiency of the coal seam, expands the wetting radius of the coal seam, and effectively reduces the dust production of the coal seam working face.

The water pick comprises a machine body and a water tank, the machine body comprises a shell assembly and a first clamping structure, the first clamping structure is movably connected to the shell assembly, the water tank is provided with a first clamping groove, at least part of the shell assembly extends into the water tank and is detachably connected with the water tank, and the first clamping structure is used for being connected with the first clamping groove in a clamped mode. The first clamping structure can move relative to the shell assembly so as to be selectively clamped with or separated from the first clamping groove, when the first clamping structure is clamped with the first clamping groove, the water tank and the shell assembly are relatively fixed, and when the first clamping structure is pressed, the first clamping structure and the first clamping groove are relatively separated so that the water tank and the shell assembly can be separated. Compared with the prior art, the machine body and the water tank are detachably connected, when water injection is needed, the water tank can be taken down from the machine body and independently taken for water injection, operation is convenient, the situation that water flow splashes due to the fact that a water injection opening is not aligned during water injection is effectively avoided, and meanwhile the water injection efficiency is improved.

The utility model discloses an exhaust device suitable for a double-flow radiator, which comprises a radiator core body assembly, an upper side plate assembly, a lower side plate assembly, a clean outlet water chamber assembly, a baffling water chamber assembly and a lacing wire assembly, the upper side of the radiator core body assembly is connected with the upper side plate assembly, and the lower side of the radiator core body assembly is connected with the lower side plate assembly. The upper side plate assembly and the lower side plate assembly are connected through the lacing wire assembly to play a fixing role, and the water chamber exhaust device assembly is fixed to the lacing wire assembly and communicates with an exhaust base on the inlet and outlet water chamber assembly and an exhaust base on the baffling water chamber assembly. The situation that due to the fact that accumulated air of the radiator is effectively and timely discharged due to the running road condition of a locomotive, the heat dissipation efficiency of the radiator is affected or cavitation of other components in a pump or a system is caused is effectively reduced, meanwhile, when cooling water is injected into the radiator, the arrangement of the device can accelerate discharging of the air in the radiator, and the water injection efficiency of the whole cooling water injection process is accelerated.

The embodiment of the invention provides a primary loop water injection method and device, electronic equipment and a storage medium, and belongs to the field of nuclear control. The method comprises the following steps: acquiring an original enthalpy value and a residual enthalpy value of a reactor core; acquiring water injection success critical time and water injection failure critical time corresponding to a loop of the reactor core; determining the water injection success critical total flow of the primary loop according to the water injection success critical time, the original enthalpy value, the residual enthalpy value and the energy conservation principle of the reactor core; according to the water injection unsuccessful critical time, the original enthalpy value, the residual enthalpy value and the energy conservation principle of the primary loop, the water injection unsuccessful critical total flow of the primary loop is determined; and controlling the water injection total flow of the primary loop according to the water injection success critical total flow and the water injection failure critical total flow. The embodiment of the invention can improve the water injection efficiency of the primary loop.

This utility model relates to the field of tunnel construction technology, specifically to a vacuum-assisted water pumping system. It includes a centrifugal pump with a pump casing containing an impeller rotatably connected inside. The pump casing has an exhaust port on its top. The system also includes a water tank with an inlet; a vacuum pump with its inlet pipe connected to the exhaust port of the pump casing and its outlet pipe connected to the inlet of the water tank. The vacuum pump, water tank, and centrifugal pump are interconnected. This utility model overcomes the technical problems of existing centrifugal pumps requiring manual water injection before startup, which is time-consuming, labor-intensive, and slow to respond quickly. Furthermore, it easily leaves air bubbles inside the pump casing, leading to low pumping efficiency and cavitation.