49 results about "Dry well" patented technology

A system and method for restoring the natural water cycle by reducing stormwater runoff and addressing issues affecting groundwater supply. In one embodiment of the invention, the system comprises a roof washer component, cistern component, pump, and manufactured dry well. The system is designed to divert polluted rooftop runoff, capture clean rooftop runoff and store this clean water for irrigation purposes and nonpotable uses, while infiltrating excess water to recharge groundwater supplies thereby replicating the natural hydrologic cycle.

The invention discloses a dewatering method used for improving the surging-resisting stability of a confined water stratum foundation pit. During dewatering designing, water pressure of the foundation pit is relieved by deepening and extending draining wells into a confined aquifer overlying acuitard, after being drained, the foundation pit is considered as a water-resisting layer, pressure weight of the confined aquifer overlying water-resisting layer is increased accordingly, the confined drawdown is reduced, and the surrounding environment can be protected. According to the dewatering method used for improving the surging-resisting stability of the confined water stratum foundation pit, the cover weight of the water-resisting layer is adjusted by relieving the micro pressure-bearing performance of the aquitard, the purposes of improving the surging-resisting stability of the foundation pit and reducing the confined water head are achieved, and the dewatering method has high application value.

The present invention is a drywell retrofit sump insert designed to be placed inside an existing drywell or other similar Underground Injection Control (UIC). The drywell insert helps protect groundwater by removing pollutants from raw storm water runoff that enters the drywell before the drywell infiltrates the storm water into the ground. Once the raw storm water enters the drywell retrofit sump insert, sand, silt, grit, and other high-density pollutants settle out of the storm water stream and accumulate in the bottom of the drywell retrofit sump insert. Oil, grease, and other low-density pollutants float on top of the standing water inside the drywell retrofit sump insert and are kept inside by the oil baffles on the outlet holes. The drywell retrofit sump insert is comprised of a rigid cylinder with an integral flanged bottom attached by means of a watertight joint.

A pipeline strainer having a body with a straining element therein. One or more magnets are removably inserted into the straining element and configured to be removed from the body without causing liquid within the cavity to drain from the pipeline strainer. A drywell is used to house the magnets. The movement of withdrawing the magnets pulls metal particles along the outer surface of the drywell toward a debris drain. A baffle is disposed at the end of the drywell that is adjacent or near the debris drain to reduce turbulence from the fluid flow within the pipeline strainer.

The present invention discloses an oil-gas microorganism gene exploration method. The method comprises the following steps: respectively collecting samples of surface shallow layers above a known oilwell, a gas well and a dry well in an exploration area, performing high-throughput sequencing after extracting DNA, establishing a microbial community composition pattern diagram in the exploration area according to a sequencing result, respectively screening out characteristic microorganisms in surface soil above the oil / gas well in the exploration area according to the pattern diagram, and designing primers according to attribute characteristics and carrying out a fluorescent quantitative PCR detection on the samples in the whole exploration area to detect the number of the characteristic microorganisms. A contour line of the characteristic microorganisms obtained by the oil-gas microorganism gene exploration method has a high coincidence rate with the known well, has a good coincidencerate with a trap line, and can carefully describe an oil area.

The invention relates to a multipurpose dewatering well structure. A decompression well solid pipe and a decompression well filter pipe are cylindrical, have A same diameter and are sequentially connected from top to bottom to form a decompression well pipe. A drainage well solid pipe and a drainage well filter pipe are cylindrical, have a same diameter and are sequentially connected from top to bottom. A connector of the drainage well solid pipe and the drainage well filter pipe is arranged outside the decompression well solid pipe in a sleeving manner and is fixedly connected with the decompression well solid pipe, and an annular space between the connector and the decompression well solid pipe forms a drainage well pipe. In a formed well hole, clay is arranged on the periphery of the top of the drainage well solid pipe, a sealing steel plate set is welded to the bottom of the drainage well filter pipe for bottom sealing, layered water stop materials are arranged on the lower portionof the sealing steel plate set, gravel is arranged between the clay and the layered water stop materials, and gravel is arranged on the lower portion of the layered water stop materials and located around the decompression well filter pipe and the decompression well solid pipe. The clay, the layered water stop materials and the gravels are used for fully supporting the well hole. Multiple layersof underground water can be extracted in a layered control mode after one-time hole forming and well forming.

Various dry well temperature calibration systems, as well as other temperature control systems, are disclosed. The system can include a well configured to receive a unit under test, a heater configured to heat the well, and a temperature sensor configured to detect a temperature of the well. The system can include a helical airflow groove around the well. A venturi pump unit can be in fluid communication with the airflow groove. The venturi pump unit can be configured to draw a flow of air through the airflow groove, thereby cooling the well.

The invention relates to a pre-buried circular ring draining well closing manner which comprises a blind plate and a pre-buried circular ring. The pre-buried circular ring is arranged on the inner wall of a draining well, the blind plate is arranged on the pre-buried circular ring, and the pre-buried circular ring is fixed to a non-fine concrete pipe. The outer wall of the draining well is sequentially provided with a foundation slab, a waterproof roll, a base plate cushion layer and basement original soil from top to bottom. The blind plate and a groove of the pre-buried circular ring are subject to full welding. The pre-buried circular ring is fixedly welded to the non-fine concrete pipe. Concrete is poured on the upper portion of the blind plate. A switch valve used for draining well dewatering and drainage during and after sealing is arranged in the middle of the blind plate. The switch valve on the blind plate is in a closing state. The blind plate is located on the foundation slab layer. The pre-buried circular ring draining well closing manner is simple in structure and convenient to construct; and the pre-buried circular ring and the periphery of the blind plate are subject to full welding, meanwhile, the special structure of the blind plate is used for doing draining well dewatering work, and the aim of doing welding operation on the blind plate and the circular ring in the dry environment is achieved.

The invention discloses a sand filling, rainwater recharging and water storing method for a waste motor-pumped well. According to the method, the waste dry well is filled with sand; at 3-5 meters above the ground, a cement pipe or plastic pipe with the inner diameter of 30-40 centimeters and the length of 3-5 meters is placed, and sand is placed in the pipe until arrives the well mouth; the well mouth is flat and lower than the ground, rainwater naturally flows into the sand well, the rainwater permeates under the well along gaps of the sand, and the water penetrates into soil when meeting thesoil in the well, so that recharging is performed on the underground soil; and a water filtering column is put into the well bottom, a water pipe is connected to the ground from the center of the water filtering column, and a water pump is connected, so that when the water is needed, the water pump is started to pump the water, and an underground water reservoir is provided.

A stormwater management inlet prefilter for system use in green infrastructure which typically includes either biofiltration (e.g. bioretention, tree planters, gravel wetlands) or infiltration (e.g. leech fields, dry wells, infiltration trenches and basins) that both provide recharge of stormwater runoff to groundwater aquifers and treated discharge to surface waters. The system can be used as an edge of curb system, a drop inlet, or inline. The system can be used both in retrofit or new installations and extends the operating life and reduces the maintenance burden of stormwater management systems by filtering out trash and debris at the inlet. The system enables the simplified maintenance of stormwater management systems at the inlet in an accessible location with no special equipment required. Installation is simple and comparable to common catch basins and grates. Preferably, the system is made of pre-cast concrete, HDPE, and stainless steel and is resistant to rust and rot from corrosive winter runoff. No special equipment necessary and maintenance is simple and utilizes standard vacuum trucks for catch basin cleaning by use of a pressure washer and vacuum equipment.

The invention belongs to the technical field of ocean energy exploration, and relates to a method for identifying natural gas hydrate by using a longitudinal and transverse wave velocity increment cross plot. The method comprises the following steps: S1, obtaining actual longitudinal wave velocity Vp and transverse wave velocity Vs; S2, calculating the longitudinal wave velocity Vp0 and the transverse wave velocity Vs0 of the water-saturated stratum; S3, calculating a longitudinal wave velocity increment delta Vp and a transverse wave velocity increment delta Vs; S4, determining a threshold curve; S5, drawing a longitudinal and transverse wave velocity increment cross plot; S6, judging whether a natural gas hydrate stratum is contained or not; S7, determining a porosity theoretical line of the natural gas hydrate; and S8, estimating the saturation range of the natural gas hydrate to be measured according to the porosity theoretical line of the natural gas hydrate. According to the method, the reliability of natural gas hydrate identification is improved, the position of the natural gas hydrate is accurately explored and identified, the dry well rate is reduced, and the drilling cost is saved; and the offshore drilling safety is ensured.

The invention discloses a method for passing through a fracture zone during drilling of a through-type air reverse circulation down-the-hole hammer. The method comprises the following process steps that (1) judgment of the fracture zone is conducted, and specifically, 1, the deslagging speed and the deslagging amount are obviously increased and are equivalent to two times of the normal discharge amount; and 2, the gas supply pressure of a whole drilling tool gas supply system is obviously reduced and is less than or equal to 1 / 2 of the normal working pressure, and meanwhile, the footage is obviously accelerated and is equivalent to 3 times-5 times of the normal drilling, namely the fracture zone is judged; (2) the thickness of the fracture zone is judged, specifically, the drilling footage meeting the condition in the step (1) is the thickness h of the fracture zone; (3) the fracture zone is treated, specifically, and if the thickness of the fracture zone is less than 2m, a hole cleaning measure is adopted for penetration; and when the thickness of the fracture zone is greater than 2m, grouting well cementation wall protection is carried out; (4)detection and inspection are conducted after wall protection, specifically, a dry well section is subjected to test drilling after 7 days of cementing, the footage is controlled at about 5 m / min, and the properties of rising cuttings are observed when entering the original broken section; and the main performance is that C30 concrete rock debris is added into rock in the fracture zone, the air pressure is normal, the deslagging is normal, the predicted well cementation section is not abnormal during drilling, and normal drilling can be realized.

A stormwater collection, treatment, and aquifer replenishment installation includes a stormwater drain for receiving surface stormwater, a dry well downwardly extending underground to an outlet proximate to a water table over an aquifer, a tank structure at least partially disposed underground and coupled with the stormwater drain and the dry well in stormwater communication, a stormwater treatment system enclosed within the tank structure between the stormwater drain and the dry well for converting surface stormwater into treated stormwater, the tank structure for conducting surface stormwater to the stormwater treatment system between the stormwater drain and the dry well, and the dry well for receiving and gravity feeding treated stormwater from stormwater treatment system to the outlet.

The invention discloses a drainage well for a sunken pit bottom of an inner dumping site and a drainage method of the drainage well, and belongs to the field of mineral engineering. The sunken pit bottom comprises a backfill body layer, a large water filtering layer, water-permeable geotextile and a waste rock layer which are sequentially arranged from bottom to top, wherein the drainage well is vertically arranged at the backfill body layer, a water outlet of the drainage well is located outside the waste rock layer, the sunken pit bottom further comprises a drainage pipe, the water inlet end of the drainage pipe communicates with a water outlet of the drainage well, and the water outlet end of the drainage pipe extends out of the side slope of a waste dump. According to the drainage well, by reasonably treating the pit bottom, an artificial permeable layer is formed, the drainage well is arranged in the treated pit bottom by adopting the drainage well with a complete well structure, the drainage pipeline is arranged in an inclined shaft manner, and finally gushing water at the bottom of the sunken pit is drained out of the inner dumping site; and the drainage well can reduce the work amount of pit bottom treatment of the inner dumping site, save investment and reduce the pit bottom treatment time.

The invention provides a pump station foundation pit integrated drainage system. The system is characterized in that a circle of cement soil seepage interception wall is arranged outwards at intervals along the outer side line of a foundation pit to form a closed seepage interception wall body, the cement soil seepage interception wall penetrates through a permeable layer, and the bottom of the cement soil seepage interception wall extends to the position 2 m below a relative impervious layer; on the outer side of the foundation pit with the closed space formed by the cement soil seepage interception wall, a circle of out-pit pressure reduction wells is constructed outwards along the cement soil seepage interception wall, and the bottom elevation of the pressure reduction wells is located at the bottom elevation of the permeable layer; an in-pit drainage well is constructed in the foundation pit, and the bottom elevation of the drainage well is located at the bottom elevation of the permeable layer; and the pump station foundation pit integrated drainage system is jointly formed by the cement soil seepage interception walls, the out-pit pressure reduction wells and the pit interior drainage well, a closed seepage interception wall is formed by the cement soil seepage interception walls, the underground water level in a foundation pit is reduced to be 0.5 m or below of a design base through the drainage drainage well, and the water head difference between the interior and the exterior of the foundation pit is kept within the range of 7 m through the drainage pressure reduction well. The dewatering and drainage requirements of the foundation pit of the large pump station can be met, and dry land construction conditions are created.

The invention discloses a nuclear power plant spent fuel vertical storage dry shaft, which comprises a concrete base plate, a dry shaft and at least one ventilation shaft surrounding the dry shaft. The concrete base plate comprises an earth surface concrete plate and an underground concrete plate buried underground. The dry shaft is provided with a bottom located on the underground concrete plate,a top air outlet located above the ground surface concrete plate, and a dry shaft body located between the bottom air outlet and the top air outlet, at least one supporting bracket is arranged in theheight direction of the dry shaft body, and a spent fuel storage tank located at the bottom of the dry shaft and at least one spent fuel storage tank located on the supporting bracket are stored in the height direction of the dry shaft body. The bottom of the ventilation shaft is located on the underground concrete plate and communicated with the dry shaft, the ventilation shaft is provided witha top air outlet communicated with the natural environment, external natural air enters the bottom of the dry shaft from the top air outlet of the ventilation shaft, and decay heat of a spent fuel assembly in the spent fuel storage tank is discharged into the surrounding environment from the top air outlet of the dry shaft.

A molded basin for use with a submersible sump, sewage or grinder pump. The molded construction of the basin permits design improvements to be incorporated into the basin including bolt down slots in a bottom flange of a bottom of the basin, a molded inner basin mounting surface for a float tree, a molded inner surface support mount to receive a bracket of a rail system used to raise and lower the pump within the basin, a disc that fits within the basin and is supported by a molded inner facing horizontal rib to create a wet / dry well and structural features present in a top surface of the basin and a cover for the basin to close said basin. Extension risers may be added to extend the height of the basin, wherein the extension risers contain many of the same structural features that are present in the basin.

The invention relates to a heat storage type geothermal energy full-well-section dry well heat collection system, the system comprises a heat collection and supply unit and an underground heat collection unit, the underground heat collection unit comprises a center pipe, the center pipe is coaxially sleeved with a sleeve, the center pipe is inserted into and penetrates through a low-temperature layer and a high-temperature layer of a geothermal well, and the sleeve is inserted into the low-temperature layer. The heat collection system comprises a heating loop and a heat storage loop, and is further innovatively provided with a preheating and heat preservation loop, and the preheating and heat preservation loop is composed of a heat pump unit, an outer-layer water injection pump, an outer-layer water injection valve, an outer-layer channel, an inner-layer channel, an inner-layer water suction pump and a bypass valve. The system breaks the dependence of a geothermal heating building group on a hydrothermal geothermal heating system, dry geothermal wells without water or with less water yield can be converted into a single-well mining system, each geothermal well is fully utilized, and the number of the geothermal wells can be reduced under the same heating condition, so that the initial investment of the geothermal heating system is reduced, and the economic advantage highlighting.

The invention discloses a dewatering treatment method for a steeply inclined strip-shaped interbed composite stratum foundation pit. The dewatering treatment method is characterized in that an open-cut hall shallow pit is included, an open-cut hall deep pit is included, a station shallow pit is included, a deep shallow pit boundary is included, an end well deep pit area is included, a rail-crossing cable deepening area is included, a water collection pit is included, an underground diaphragm wall is included, inner limestone fracture grouting is carried out, wall bottom limestone fracture grouting is carried out, a pressure reduction well is included, a drainage well is included, a confined water observation well serving as an emergency recharge well is included, and a down-turning beam pit groove is included. The dewatering treatment method is particularly suitable for underground water treatment of the composite stratum foundation pit with upper old city miscellaneous fill, middle hard plastic clay and lower bed rock. It is summarized that the dewatering treatment method can achieve total closing, partial grouting, upper drainage, lower pressure reduction, bottom collection and drainage and external measurement and irrigation. The dewatering treatment method can reduce the number of dewatering wells and the water pumping amount, and the construction period and cost are saved;and meanwhile, the safety of the foundation pit and the surrounding environment can be guaranteed, and good economic and safety benefits are obtained.

The invention discloses a shaft sinking water disaster prevention and control method. The specific subsidy mainly comprises the steps of well bottom surrounding roadway tunneling, water inflow prediction, well bottom temporary drainage system construction, underground upward vertical drainage hole drilling, underground drainage, tunneling of a shaft penetrating through a water-bearing layer, drainage hole closing and well bottom surrounding roadway filling. And in the shaft sinking process, the underground drainage holes can effectively drain the water in the aquifer in advance, dry well drilling is achieved, and it is guaranteed that no water disaster accident occurs in the shaft sinking process.

The invention discloses a sanitary deceleration transmission mechanism special for stirring. The sanitary deceleration transmission mechanism comprises a machine housing, an input shaft and an outputshaft, wherein the machine housing is composed of an upper box and a lower box, a driving gear is mounted on the input shaft, and a driven gear is mounted on the output shaft; the driving gear is engaged with the driven gear for driving the output shaft to rotate; the lower box is internally provided with a dry well sleeve, and the lower box and the dry well sleeve are integrally casted; an oil storing groove is formed between the dry well sleeve and the lower box, and the driving gear and the driven gear are arranged in the oil storing groove; bearings are mounted on the outer wall of the drywell sleeve, the driven gear is mounted on the dry well sleeve through the bearings, and the driven gear is connected with the output shaft through an output shaft supporting arm; and the output shaft supporting arm comprises a gear connecting part, a supporting part and a transition part, wherein the gear connecting part is connected with the upper end of the driven gear, and the supporting partextends into the inner diameter of the dry well sleeve and is in close fit with the upper end of the output shaft. The sanitary deceleration transmission mechanism special for stirring has the advantages of being small in size, simple in structure, good in oil leaking preventing effect and the like.

The invention relates to a draining and dewatering system, in particular to a sludge soil draining and dewatering system and a construction method. The sludge soil draining and dewatering system comprises sand-containing water flow subsystems, a high-pressure rotary spraying subsystem and an draining well subsystem; a plurality of sand-containing water flow subsystems are arranged around the drainage well subsystem and are respectively connected with the high-pressure rotary spraying subsystem; sludge soil is replaced by sand-containing water through the high-pressure rotary spraying subsystem, so that a horizontal drainage body is formed; the high-pressure rotary spraying subsystem comprises a plurality of pipes, a nozzle is arranged at the bottom of the high-pressure rotary spraying subsystem, and the upper part of the high-pressure rotary spraying subsystem is respectively connected with a water pump, an air compressor and a vacuum pump; the sand-containing water flow subsystem comprises a sand-containing water pump and a sand-containing water bucket connected with the multiple pipes through the sand-containing water pump; the drainage well subsystem comprises a drainage well, a drainage pump is arranged in the drainage well, and water permeable holes are formed in the side wall of the drainage well. Compared with the prior art, the sludge soil is replaced with a soil body with good permeability through sand-containing water preparation, high-pressure water flushing, high-pressure rotary spraying, horizontal drainage and the like, permeation and collection of underground water are facilitated, and then the purpose of drainage and dewatering is effectively achieved through the drainage well.

The invention discloses a method and a device for distinguishing exploratory well types by a weighted mahalanobis distance with optimized weight. The method comprises the following steps: respectively acquiring geological factor parameters of each well in an oil-gas well set and a dry well set; calculating an oil and gas well parameter mean vector and an oil and gas well parameter covariance matrix, and calculating a dry well parameter mean vector and a dry well parameter covariance matrix; generating a weighted mahalanobis distance discrimination model according to the oil and gas well parameter mean vector, the oil and gas well parameter covariance matrix, the dry well parameter mean vector, the dry well parameter covariance matrix and a preset weight diagonal matrix; optimizing and adjusting the weight of each geological factor parameter in the weight diagonal matrix continuously, so that the discriminating error rate of the generated weighted mahalanobis distance discriminating model on the oil and gas well set and the dry well set is the lowest, and the weighted mahalanobis distance discriminating model with the optimized weight is obtained. According to the invention, the exploratory well type discrimination precision and the use efficiency are improved.

The invention relates to a retaining wall drainage method and a retaining wall drainage system. The retaining wall drainage method comprises the following steps that when an original drainage hole in a retaining wall is blocked, a drainage well is arranged in a soil body blocked by the retaining wall along the longitudinal direction; the originally blocked water drainage hole is selected as a foundation hole, a water guide pipe is inserted into the foundation hole, and the water guide pipe is anchored into the drainage well, so that the water guide pipe can guide out water in the drainage well; therefore, the purpose of draining is achieved, and water drainage capacity of the retaining wall is recovered. Moreover, in the process of recovering the water drainage capacity of the retaining wall, and the originally blocked water drainage hole is directly used as the foundation hole, so that the cost required for recovering the water drainage capacity of the retaining wall is effectively reduced, and meanwhile, the whole process is simpler and easier to implement. Moreover, by adopting the drainage well and the water guide pipe, the water drainage capacity of the retaining wall can be recovered for a long time, and the retaining wall is not easy to block.

The invention relates to a layer-across submerged well quick dewatering device and method for multiple aquifers and multiple aquicludes. In a multi-aquifer multi-aquiclude system, a low-permeability aquifer, an aquiclude and a high-permeability aquifer sequentially exist in a soil layer isolated by a waterproof curtain from top to bottom; the quick water reducing device comprises a shallow unwatering well for drainage of the low-permeability aquifer, and a pressure reducing-unwatering well for the high-permeability aquifer, and further comprises layer-across submerged wells arranged around thepressure reducing-unwatering well; and each layer-across submerged well is provided with a drilled holes for drilling through the low-permeability aquifer, the high-permeability aquifer and the aquiclude between the low-permeability aquifer and the high-permeability aquifer, the drilled holes are used for communicating with the low-permeability aquifer and the high-permeability aquifer, and vertical water running is formed. Compared with the prior art, the layer-across submerged wells are introduced into the multi-aquifer multi-aquiclude system isolated by the waterproof curtain, the drainageprocess can be remarkably accelerated, and a new thought can be provided for a foundation pit dewatering construction process.

The invention discloses a calibration device. The calibration device comprises a dry well furnace, a deformable heat preservation cover plate, a first socket assembly, a second socket assembly, a resistance box, a first magnetic attraction patch and a second magnetic attraction patch. The dry well furnace is provided with a furnace chamber; the heat preservation cover plate is buckled on a furnace opening of the dry well furnace; and the first socket assembly comprises a first socket and a second socket, the second socket assembly comprises a third socket and a fourth socket, and the resistance box is provided with a first binding post and a second binding post. A closed space for accommodating the electrode of the conductivity meter is formed between the furnace chamber of the dry well furnace and the deformable heat preservation cover plate, so that the constant temperature condition of the electrode is ensured; by arranging the two magnetic attraction patches which are respectively attracted with the first electrode and the second electrode of the conductivity meter, a closed loop is formed between the resistance box and the electrodes of the conductivity meter, so that the reference error of the conductivity meter is calibrated through the resistance box, and the resistance box is easy to install and use.