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158 results about "Mud tank" patented technology

A mud tank is an open-top container, typically made of square steel tube and steel plate, to store drilling fluid on a drilling rig. They are also called mud pits, as they were once simple pits in the earth.

Efficient anti-pollution isolation liquid for well cementation and preparation method thereof

ActiveCN102337108AWide temperature rangeFlexible control of rheologyDrilling compositionDry mixingEngineering
The invention relates to an efficient anti-pollution isolation liquid for well cementation and a preparation method thereof, belonging to the technical field of well cementation. The isolation liquid comprises the following components in parts by weight: 100 parts of clear water, 4-29 parts of suspending stabilizer, 0.5-5 parts of fluid loss additive, 0.3-2 parts of tackifier, 0.1-5 parts of diluting agent, 0-5 parts of viscosity and shearing force increasing agent, 30-350 parts of weighting agent, 1-25 parts of pH value regulating agent and 0.1-0.5 part of defoamer. The isolation liquid provided by the invention has wide density regulation range, large temperature resisting range, strong anti-pollution capacity, wide applicability and strong maneuverability, can be conveniently subjected to in-situ preparation, can be prepared by using a mud tank equipment base fluid method or cement vehicle equipment dry-mixing method, and can apply effective abrasion, scraping and carrying effects to attachments on an interface of a well wall; and by using the isolation liquid, the problems that in the well cementation operation, pollution is generated by fluid displacement, the adhering quality of a well cementation interface is poor and the like are effectively solved.
Owner:SOUTHWEST PETROLEUM UNIV

Chromium-contaminated soil different-position leaching repairing technology and device

The invention belongs to the technical field of contaminated soil repairing treatment, and particularly relates to a heavy metal (chromium VI)-contaminated soil different-position chemical leaching repairing technology and device. The chromium-contaminated soil different-position leaching repairing device comprises a one-level scrubbing unit, a two-level scrubbing unit, a waste liquid treatment unit and a medicament adding unit. The one-level scrubbing unit comprises a pulper, an even mixing and homogenizing device, a one-level vibration screen and a one-level cyclone. The two-level scrubbing unit comprises a strong stirrer, a two-level cyclone and a two-level vibration screen. The waste liquid treatment unit comprises a thickener, a to-be-pressed mud tank and a plate-and-frame filter press. The medicament adding unit comprises a medicament tank. The chromium contaminated soil different-position leaching repairing technology comprises one-level leaching, two-level leaching and waste liquid treatment. The different-position leaching repairing technology can be flexibly adjusted according to the situation of soil or bottom mud containing various pollutants. The different-position leaching repairing technology device can be moved to a next project site to be used again after the project is over, and therefore the equipment utilization rate can be increased, and cost can be reduced.
Owner:SAFECLEEN TECH

Waste drilling mud recycling water shut-off and profile control technique

ActiveCN104153731AHigh degree of motorizationMove at any timeSludge treatmentFluid removalWell drillingOil water
The invention relates to a waste drilling mud recycling water shut-off and profile control technique. The waste drilling mud recycling water shut-off and profile control technique comprises the following steps of scattering waste mud in a waste mud pond by using a high-pressure sewage gun; descending a submerged mud pump to the waste mud pond by using a small crane and stirring the waste mud by using the submerged mud pump; carrying recycled mud to a water shut-off and profile control field by using a mud tank truck; adding chemicals in the waste mud and blending the waste mud into water shut-off and profile control plugging agents; pumping the water shut-off and profile control plugging agents into a stirring tank; sufficiently stirring and curing the mud by using a stirrer; and injecting the mud into an oil-water well by using an intelligent profile control injection pump according to the amount of design in three slugs comprising an early strength slug, a main body slug and a sealing slug and performing a water shut-off and profile control process. The waste drilling mud recycling water shut-off and profile control technique has the advantages that environmental pollution of the waste mud is eliminated when the waste mud is not solidified; the recycled mud pond is not required to be solidified; a large amount of mud solidifying cost is saved; the recycled waste mud serves as inorganic plugging agents after being blended; remote plugging in deep positions of a stratum is realized; and the whole water shut-off and profile control effect is improved.
Owner:山东华曦石油技术服务有限公司

Replacing method of shield tail brushes of super-large-diameter shield machine under high water pressure condition

ActiveCN107035378AEasy to replace, safe, stable and efficientSolve the difficulty of replacementUnderground chambersTunnel liningSlurryEngineering
The invention provides a replacing method of shield tail brushes of a super-large-diameter shield machine under a high water pressure condition. In the propelling process of last ring pipe pieces before shutdown, in addition to the last ring pipe piece before shutdown, gaps between a shield tail and the pipe pieces is filled with elastic water absorbing materials or elastic waterproof materials; in the propelling process of the last ring pipe pieces before shutdown, ordinary grease is injected into a grease cavity of the shield tail brushes in a pressure mode, and the other grease cavities of other shield tail brushes of the super-large-diameter shield machine are injected with waterproof grease in a pressure mode; in the replacement position, a mud tank of the super-large-diameter shield machine is subjected to new slurry replacement; and in the replacement position, a shield shell hoop of the super-large-diameter shield machine is injected with filling slurry body in a pressure mode. Preferably, the shield tail brushes are detachable. According to the replacing method of the shield tail brushes of the super-large-diameter shield machine under the high water pressure condition, replacement of the shield tail brushes under the high water pressure condition is easy, safe, stable and efficient, the problem that replacement of the shield tail brushes of the super-large-diameter shield machine under the high water pressure condition is difficult can be solved, design is ingenious, construction is simple, convenient, safe and efficient, and large-scale application and promotion is adaptable.
Owner:SHANGHAI TUNNEL ENG CO LTD +1

Truck for removing sludge from inspection well

The invention relates to a truck for removing sludge from an inspection well, which belongs to the technique of mechanically removing the sludge from the inspection well for the urban pipe network. When the sludge in the inspection well is removed, an inspection well cover is opened. The truck power is started by a microcontroller to start an oil pump and drive a soft shaft. Meanwhile, a sludge conveying flexible pipe is driven to move an oil cylinder upwards, downwards, leftwards, rightwards, frontwards and backwards, and the soft shaft, the sludge conveying flexible pipe, a sludge pump and a stirring head are correctly conveyed in the inspection well. According to size of the inspection well, a program that has been set by the microcomputer controller is selected. Under the control of the program, the sludge deposited in the inspection well is stirred in a flowing shape by the stirring head spirally from top down, and the sludge in the flowing shape is conveyed into a sludge storage tank by effect of an impeller of the sludge pump. The waste water in the sludge storage tank is discharged through a waste water outlet after continuous operation and sludge deposition, so that the sludge storage tank can store the sludge maximally. After the sludge is stored in the whole sludge storage tank, the sludge storage tank is conveyed to a named place where the sludge is discharged. Finally the sludge deposited on the bottom of the sludge storage tank is pushed out from a sludge discharge outlet by a sludge discharge spiral rod.
Owner:宋兰芳 +2

Device for simulating reciprocating flow riverway in-situ bottom mud resuspension and simulation technology thereof

InactiveCN104863084AAffects the effect of resuspensionMaintain propertiesHydraulic modelsBrushless motorsSiphon
The invention relates to a device for simulating reciprocating flow riverway in-situ bottom mud resuspension and a simulation technology thereof. According to the device for simulating the reciprocating flow riverway in-situ bottom mud resuspension, an upstream flow water level control device comprises a first water inlet pipe, an upstream water level control water tank, an upstream backflow simulation water tank, a first siphon backflow pipe and a first water outlet pipe; a water tank device comprises a water tank body, a bottom mud tank, a flow velocity gauge, a turbidity meter and at least two sampling ports; a downstream tide simulation control device comprises a tide water level control tank, a second siphon backflow pipe, a tide backflow simulation water tank, a backflow water tank, an overflow pipe, a variable frequency water pump and a second water outlet pipe; an experiment platform automatic control device comprises a first resistance-type liquid level meter, a second resistance-type liquid level meter, a first pulling line, a second pulling line, a first direct current brushless motor, a second direct current brushless motor, a first movable pulling plate and a second movable pulling plate. The simulation technology comprises the steps of bottom mud preparing, overlying water preparing, flow velocity gauge and turbidity meter installing, unidirectional flow simulating, tide reciprocating flow simulating and water sample measuring. The simulation accuracy is high, and the device for simulating the reciprocating flow riverway in-situ bottom mud resuspension and the simulation technology thereof can be popularized.
Owner:HOHAI UNIV

Power grid pole mud resistivity measurement system

The invention relates to the well logging field and discloses a power grid pole mud resistivity measurement system. The power grid pole mud resistivity measurement system of the invention comprises a mud tank and a handheld device; the handheld device comprises a resistance measurement module, a temperature measurement module, a resistivity calculation module and a USB interface; the mud tank comprises a mud tank body, a sealing cover and a USB base; an upper power grid electrode is arranged in the sealing cover; a lower power grid electrode is arranged in the mud tank; the USB base is provided with a USB connector; and the handheld device is connected with the mud tank through a USB. The power grid pole mud resistivity measurement system can provide a uniform electric field for mud in measurement, so that the accuracy of mud resistivity measurement can be improved; the USB communication interface is adopted, so that wiring is not required, and therefore, convenient operation and little possibility of making mistakes can be realized; two grounding ends are arranged in a circuit, and therefore, circuit interference can be can effectively reduced. With the power grid pole mud resistivity measurement system of the invention adopted, the size of a mud resistivity measurement instrument can be effectively decreased, and the portability of the instrument can be enhanced. According to the power grid pole mud resistivity measurement system, resistivity measurement and temperature measurement are combined together, and therefore, measuring precision can be ensured, and workload of measurement work can be decreased.
Owner:BITSWAVE SUZHOU

Sludge discharge equipment comprising vacuum pump and sludge discharge tank

Sludge discharge equipment comprising a vacuum pump and a sludge discharge tank consists of the vacuum pump, an air suction pipe, a sludge storage tank, a liquid level meter, a sludge suction pipe, sludge discharge pipe, a sludge discharge valve, a bell-type valve, the sludge discharge tank, an air inlet valve, an air inlet pipe and a delivery pipe. The sludge storage tank is arranged above the sludge discharge tank, the air suction pipe is arranged on the left end of the sludge storage tank and is connected with the vacuum pump, the liquid level meter is installed at the inner upper part of the sludge storage tank, the sludge suction pipe is arranged on the right end of the sludge storage tank and extends into sludge in a water sump, the sludge discharge pipe is arranged below the right end of the sludge storage tank and is provided with the sludge discharge valve, and the sludge in the water sump is sucked into the sludge storage tank from the water sump under the action of the vacuum pump. The sludge discharge tank is arranged below the sludge storage tank, a feed port is formed in the upper end of the sludge discharge tank and is connected with the bell-type valve for controlling slurry to flow into, the air inlet pipe and the air inlet valve are arranged on the left upper end of the sludge discharge tank for controlling high pressure air to flow into the sludge discharge valve, and the delivery pipe is installed on the right upper end of the sludge discharge tank for delivering the slurry. The sludge discharge equipment has the advantages of simple equipment, convenience in maintenance, large delivery capacity, long service life, long delivery distance and less investment.
Owner:CENT SOUTH UNIV

System and method for deep nitrogen and phosphorus removal and resource recovery of AAO-BCO process

The invention discloses a system and method for deep nitrogen and phosphorus removal and resource recovery of an AAO-BCO process. The system comprises an AAO-BCO system which is formed by sequentiallyconnecting a raw water tank, a water inlet pump, an AAO reactor, a middle settling tank, a middle water tank, a middle water inlet pump, a biological contact oxidation tank and a settling region, wherein a mud discharging pipe at the bottom of the middle settling tank and the bottom of the settling region are connected with a mud storage tank through a mud discharging valve I and a mud discharging valve II, respectively, the mud storage tank is sequentially connected with a fermentation tank, a nitrogen and phosphorus recycling tank and a liquid storage tank, the top of the fermentation tankis connected with an alkali liquid dosing tank through a lifting pump II, and a mud discharging valve IV is arranged at the bottom of the fermentation tank; and the top of the nitrogen and phosphorusrecycling tank is connected with a magnesium salt solution dosing tank through a lifting pump I, a mud discharging valve III is arranged at the bottom of the nitrogen and phosphorus recycling tank, and the liquid storage tank is connected with the raw water tank through a lifting pump III. According to the system and the method, the deep nitrogen and phosphorus removal and the resource utilizationof sludge of the AAO-BCO process are realized under a low C / N sewage condition.
Owner:YANGZHOU JIEYUAN DISCHARGE WATER CO LTD

Coke oven coaling hole sealing device and sealing method thereof

The invention relates to a coke oven coaling hole sealing device and a sealing method of the coaling hole. The device comprises two coal car hoppers, a mud tank, a mud hard pipe and two mud flexible pipes. A tilt angle of each mud flexible pipe is not less that 60 degrees in a horizontal direction, a compressed air control solenoid valve is installed on the mud hard pipe, and the other end of the compressed air control solenoid valve is connected with a compressed air pipe. The sealing method of the coaling hole comprises a step of opening a stirrer installed inside the mud tank; a step of sending a coal-charging hole cover to the coal-charging hole through one of an off-and-on device of the coal-charging hole cover and opening the coal-charging hole; a step of opening the solenoid valve of the mud tank and a mud-entering solenoid valve, closing another mud-entering valve and injecting the mud into sealing grooves of the coal-charging hole cover and a coal-charging base; a step of closing the solenoid valve of the mud tank, opening a control solenoid valve used for compressing air and emptying the mud soft pipe; a step of packing up the sealing device of the off-and-on device of the coal hole cover. The sealing device and the sealing method enable sealing mud of the sealing grooves of coal-charging hole cover and the coal-charging base to be uniform.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD

Drilling head separating floor anchoring drill

The invention discloses a drilling head separating floor anchoring drill which comprises a water-rock separating circulator, a hydraulic pump, a motor, a silencer, a velometer, a soil pickup outlet and a hollow transmission shaft. Water inlet holes are formed in the hollow transmission shaft, water is injected into the bottom of a drilled hole through the water inlet holes, the temperature of a drill bit is reduced, and dust is removed. The water-rock separating circulator is divided into a clear water tank and a mud tank by a filter screen, the hydraulic pump is mounted on the upper portion of the water-rock separating circulator, mud (rock powder and water mixture) in the drilled hole is pumped into the mud tank by the hydraulic pump, clear water enters the clear water tank after the mud is filtered, and the clear water is pumped into a water inlet tank by the hydraulic pump and recycled through a clear water inlet hole. Waste of water resources is avoided, rock powder generated in drilling is collected, sticking in drilling of the drill is prevented, the dust is prevented from harming health of workers, the water and the rock powder in the drilled hole are timely pumped out, the water is prevented from weakening floor lithology, and support efficiency is improved. Operation is facilitated, and construction is easily performed.
Owner:CHINA UNIV OF MINING & TECH
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