Water injection well continuous monitoring and automatic measuring and adjusting process based on underwater acoustic communication

The invention relates to the technical field of oil field oil production engineering, in particular to a water injection well continuous monitoring and automatic measuring and adjusting process based on underwater acoustic communication. The problems that a wellhead cannot be controlled due to a cable and a cable connecting part is easy to be short-circuited when a tubular column is tripped in existing intelligent water injection well operation are solved. The device comprises a ground control device (1), a ground communication cable (2), a wellhead underwater acoustic communication machine (3), an underground underwater acoustic communication machine (4), a first-stage tool (10), a second-stage tool (11)... an nth-stage tool (12), an oil pipe (7), a sleeve (8) and a tool section cable (9), and each stage of tool comprises a cable passing packer (5) and an intelligent water distributor (6). The invention further discloses a water injection well continuous monitoring and automatic measuring ...

Downhole power-driven release

The invention relates to the field of oil production engineering in an oil field, belonging to a downhole power-driven releasing device. In the downhole power-driven releasing device, the defect that a plurality of sets of tools cannot be matched only by one kind of releasing tool to use in the traditional mechanized releasing device is solved, the lower end of a connecting head 1 is connected with the upper end of a motor jacket 3 through a thread, a motor 4 and a transmission shaft 7 are connected through a shaft coupler 6, and a positioning support arm torsional spring 17 is installed in apositioning support arm 16. The downhole power-driven releasing device is suitable for being matched with an indwelling tool in a pit to use and has the advantages of flexibility, controllability, simple and reasonable structure and the like.

Vanadium-containing directly reduced iron as cooling agent for oxygen converter and shaking ladle vanadium extraction steel melting and production method thereof

The invention relates to vanadium-containing directly reduced iron used as coolant for vanadium extracting and steel making for an oxygen converter and a shaking ladle and a production method thereof, and relates to the field of directly reduced iron and vanadium extracting and steel making. Through screening and concentrating vanadium-titanium iron core, the production method obtains iron, vanadium and multiple iron ore concentrates with high purity (namely, V2O5 in a dreg forming element is improved to nearly 10 percent), can use various methods for directly reducing the iron to produce the directly reduced iron containing the vanadium. The method has the technological characteristics that: firstly, the multiple iron ore concentrates containing iron, vanadium and the dreg forming element high-purity V2O5 improved to nearly 10 percent are used for producing the vanadium-containing directly reduced iron of different grades containing high iron content, high vanadium content and the dreg ...

Tunnel kiln without exterior combustion chamber and production of direct reduced iron by composite tunnel kiln

Time division multiple access time slot allocation method based on manta ray algorithm

The invention relates to a time division multiple access time slot allocation method based on a manta ray algorithm, and belongs to the technical field of communication networking. A time frame is divided into an information collection time period and a time slot allocation time period, and then the time slot allocation time period is divided into a special time slot time period and a dynamic time slot time period. In an information collection period, a center node collects time slot application requests of other nodes, judges whether the node can continue to apply or not according to related criteria, and gives priority to the node according to the business volume applied by the node and the business importance. In the special time slot distribution time period, high-priority nodes are distributed by using a binary tree in-block equipartition method; and in a dynamic time slot allocation period, performing time slot allocation on other nodes by using a manta ray algorithm. The method is ...

Retention-type long-acting insecticide

A retention-type long-acting insecticide contains permethrin (1.5-3.0 pts.wt.), cypermethrin (3-6 pts.wt.), propoxur (6-10 pts.wt.), solvent (150-250 pts.wt.), emulsifier (30-50 pts.wt.), adhesive film forming agent (30-60 pts.wt.), and deionized water (620-780 pts.wt.). Its advantages are long action period, high safety, high effect and no environmental pollution.

Intelligent injection allocation testing device of water injection well

The invention relates to the oil field oil production engineering technology field, and belongs to an intelligent injection allocation testing device of a water injection well. The intelligent injection allocation testing device of the water injection well mainly solves the problems that the existing separated layer water injection equipment has high testing work load, long allocation period and low water injection qualification rate in the construction process. The intelligent injection allocation testing device of the water injection well is composed of an upper joint 1, an upper connecting sleeve 2, a guiding body 3, a non-contact electric energy conversion system 4, a central pipe 5, an automatic control circuit board 6, a main body 7, a diversion body 8, a flow control valve 9, a data collection system 10, a lower connecting sleeve 11 and a lower joint 12, wherein, the non-contact electric energy conversion system 4 is connected with the central pipe 5 in a locating way, and the automatic ...

Intelligent water distributor ground comprehensive simulation experiment system and control method thereof

The invention discloses an intelligent water distributor ground comprehensive simulation experiment system and a control method thereof.The intelligent water distributor ground comprehensive simulation experiment system is characterized in that a liquid supply mechanism is connected with a first pressure detection unit and a liquid storage tank; the first pressure detection unit is connected with the flow regulation mechanism; the flow regulation mechanism is connected with the first flow detection unit; the first electric control valve, the second electric control valve, the third electric control valve, the fourth electric control valve and the second electric control valve are connected in sequence; the first flow detection unit is connected with a pipeline between the first electric control valve and the fourth electric control valve; a first water tank is connected between the first electric control valve and the second electric control valve through a pipeline; one end of the sleeve ...

Process for preparing spherical, oblate spherical and diamond shape sponge iron by QF-LY method

The invention provides a process for preparing spherical, oblate spherical and diamond shape sponge iron by QF-LY method which comprises, ferrum ore concentrate or pellet ore and cooled agglomerated pellet exploitation, briquetting, preparing reducing agent, mixing, loading retort, charging into kiln, discharging and finishing. A QF-LY kiln or a remodeled brick and tile kiln equipped with observing and control equipment can be employed for sintering at the temperature of 1050-1300 deg. C.

Device and method for producing low-valence vanadium oxide

The invention relates to the technical field of vanadium oxide, in particular to a device and a method for producing low-valence vanadium oxide. The device for producing low-valence vanadium oxide comprises a combustion device, a cyclic decomposition reaction device and a cooling collection device. In the invention, the cyclic decomposition reaction device comprises a reaction pipeline, a recirculation pipeline and a dust removal device, and materials are decomposed and reduced for multiple times through the recirculation pipeline so that the materials are fully reduced, and low-valence vanadium oxide is obtained; according to the invention, ammonium metavanadate powder is used as a raw material; ammonium metavanadate powder is driven by high-temperature airflow generated by the combustiondevice to enter the cyclic decomposition reaction device to be decomposed and reduced, ammonia gas generated by the raw materials serves as a reducing agent to complete the reduction reaction process, ...

Multifunctional electric control throwing and dragging device

The invention belongs to the technical field of oil field testing, and relates to a multifunctional electric control throwing and dragging device for oil field water injection well testing. The problem that an existing throwing and dragging tool cannot meet the requirement for small chuck distance and cannot achieve throwing and dragging at a time by descending the well is solved. A cable head 1 is in threaded connection with a throwing and dragging arm motor protective sleeve 9. A cable 38 passes in a cable fixer 3. A centering device 2 is clamped in a clamping groove outside the cable head 1. A guide arm 33 and a supporting arm shaft protective sleeve 28 are connected through a guide arm shaft 30. The guide arm 33 and a guide arm spring 32 are connected through a guide arm spring shaft 31. The supporting arm shaft protective sleeve 28 is in threaded connection with a lower connector 37. The multifunctional electric control throwing and dragging device has the advantages of meeting the ...