52results about How to "Reduce salvage costs" patented technology

The invention discloses a rotation-free pawl-type sliding sleeve with a ball seat capable of being taken out. The sliding sleeve comprises a sliding sleeve body, an inner sliding sleeve and a ball seat cylinder, wherein the sliding sleeve body is composed of an upper connector, an outer cylinder and a lower connector. The sliding sleeve body and the inner sliding sleeve are fixed through a shear nail, the inner sliding sleeve and the ball seat cylinder are fixed through a shear nail, a fluid outlet hole is formed in the upper portion of the outer cylinder, and a clamping spring hole is formed in the lower position of the middle of the inner wall of the outer cylinder. An annular switch clamping groove is formed in the inner wall of the upper portion of the inner sliding sleeve, a plurality of split pawl clamping grooves are formed in the inner wall of the middle of the inner sliding sleeve in the peripheral direction, and a clamping spring is installed on the outer wall of the middle of the inner sliding sleeve. A plurality of male pawls are arranged at the upper end of the ball seat cylinder in the peripheral direction, a plurality of female pawls are arranged on the inner side of the lower end of the ball seat cylinder in the peripheral direction, the male pawls are clamped into the split pawl clamping grooves, and a variable diameter ball seat is arranged in the ball seat cylinder. When the inner sliding sleeve moves to the lower end of the outer cylinder, the clamping spring on the inner sliding sleeve is clamped into the clamping spring hole in the outer cylinder. All base seat cylinders can be salvaged through non-rotating type tubular columns in a disposable mode, and a full through path is achieved.

The invention discloses a river cleaning boat which is not easy to wrap fish and shrimp cage, including the hull, An upper surface of that hull is fixedly connected with a deck, the front and rear sides of the hull are provided with fixed seats, A limit flow baffle plate is fixedly connected with that other end of the hydraulic lifting rod, A swivel tip plate is movably connected to that right side of the swivel pin, A lifting hanger is arrange at that left end of the upper side of the hull, A lifting device is arranged on that left side of the lifting rod, A hinge cylinder is symmetrically and fixedly connected with that middle part of the deck, A cable is arranged on the left side of the hinge barrel, A refuse tank is arranged in the middle of the hull, A garbage tank is movably connected with a garbage tank, left and right ends of the garbage tank are fixedly connected with a traction lifting ring, a water filtering network is fixedly connected with the lower side of the garbage tank, a communication pipe is fixedly connected with the bottom of the garbage tank, a pump machine is fixedly connected with the upper surface of the deck, an electric motor is fixedly connected with the interior of the ship, and a power device is arranged at the lower end of the left side of the ship. The invention has the advantages of simpler and more convenient removal of river surface garbage and convenience in moving and delivering garbage onto the shore.

The invention relates to a deoiling and scumming device for a sewage treatment plant. The deoiling and scumming device mainly comprises an open sewage treatment tank and is characterized in that one end of the sewage treatment tank is provided with a sewage inlet while the other end of the sewage treatment tank is provided with a water outlet; an oil scraping system is arranged at the top of the sewage treatment tank and formed by connection of a transmission support and an oil scraping comb connected with the transmission support. The deoiling and scumming device has advantages that a flow guide area can be set according to oil residue quantity, oil absorption felts are arranged in a flow guide area to realize oil isolation, a guide plate is lifted and rotates to a position above an oil residue collection tank along a set time after oil collection is finished, the guide plate is fixedly connected with springs, and an extrusion space is obtained. By the external sleeve type oil scraping comb on the guide plate, oil and scum can be directly filtered into the oil residue collection tank, and accordingly land saving and oil removal are effectively realized. In addition, due to direct transporting, manual salvaging cost is reduced.

The invention relates to a drilling tool anti-dropping device and a drilling tool anti-dropping method for drilling operations in an oil and natural gas field, which can prevent a drilling tool from being cut off to dropping into a well under a special condition. The device and the method adopt the technical scheme that: the anti-dropping device is an outer metal shell; the cavity of the shell is internally provided with a slips the inner side of which is a circular arc surface with slips teeth connected with a slips connecting plate, and the slips connecting plate is connected with the lower face of a hydraulic cylinder; the outer part of the hydraulic cylinder is transversely connected with a tightly inserting plate which is provided with a fastening bolt; and the lower part of the hydraulic cylinder is provided with an oil inlet while the upper part is provided with an oil inlet pipe in which an overflow device is arranged and is connected with a hydraulic pipeline. The method uses two hydraulic cylinders to clamp and release the slips and controls piston rods of the hydraulic cylinders to drive the slips to move downwards through a connecting mechanism in an emergency. The inner side of the slips contacts the drilling tool to form self-locking to clamp the drilling tool. The anti-dropping device of the invention is simple in structure, stable in performance and reliable in construction method, can reduce the salvage cost of the drilling tool and can be widely applied to the drilling operation of oil and natural gas fields.

The invention provides a surface garbage salvage vessel which comprises a vessel body, a garbage salvage device, garbage collecting devices, a garbage conveying device and a control center. The garbage salvage device is arranged at the front end of the vessel body, the garbage collecting devices are arranged on the periphery of the vessel body and are fixedly connected to the vessel body through supporting pillars at bottoms of the garbage collecting devices, garbage dampers are arranged on the periphery of the garbage conveying device, a garbage conveying belt is arranged on the surface of the garbage conveying device, and the control center is arranged in the vessel body. By the arrangement, garbage on the water surface can be cleaned through the salvage vessel, automation degree is high, problems about low manual salvage efficiency, serious potential safety hazard, high salvage cost and small salvage range are effectively solved, the surface garbage salvage vessel is compact in structure and continuous and convenient in operation, difficulty in collecting the garbage on the water surface is reduced, and the environment pollution bought by the garbage of the water surface is alleviated.

A floater automatic cleaning device comprises a rack having buoyancy wheels; the buoyancy wheels are connected with a drive motor; a floater collector is connected with the rack through a support, and refers to a hopper structure; two sides of the floater collector are movably connected with the support; the floater collector is provided with a crossbar movably connected with a steering engine connecting rod; the steering engine connecting rod is hinged to a steering engine rotary plate; the steering engine rotary plate is connected with a steering engine output shaft; the steering engine is arranged on the rack. The buoyancy wheels can push the floater automatic cleaning device to move on the water surface; the floater collector is immersed in water; the floater automatic cleaning device is driven by the buoyancy wheels to land after salvage; the steering engine can be rotated, so the floater collector can lean to pour out the salvage waste.

The invention discloses an automatic cleaning device for riverway floating matter. The automatic cleaning devicefor riverway floating matter comprises a drainage channel allowing a water flow to flow,a conveyor belt for conveying a floating matter in the water flow, a collecting groove for collecting the floating matter which is conveyed by the conveyor belt, and a transmission mechanism for generating power through flowing of the water flow and driving the conveyor belt to operate, the conveyor belt is arranged between a waterinlet of the drainage channel and a wateroutlet of the drainage channel, a floating matter receiving end of the conveyor belt is close to one side of the waterinlet of the drainage channel, a floating matter discharging end of the conveyor belt is close to one sideof the wateroutlet of the drainage channel, the collecting groove is formed in the lower part of the floating matter discharging end of the conveyor belt, and the transmission mechanism is connected with the conveyor belt through gears, and drives the conveyor belt through flowing of a water body to convey the floating matter. According to theautomatic cleaning devicefor riverwayfloating matter, the technical problems of high working cost, small water areaapplication range and low working efficiencyof a riverwaydesilting device are solved.

The invention relates to the technical field of riverway cleaning, in particular to a floatable riverway garbage salvaging device for hydraulic engineering and a salvaging method thereof. The floatable riverway garbage salvaging device comprises a floating salvaging device, a collecting device and a bottom salvaging device, wherein the bottom salvaging device is arranged at the bottom of the floating salvaging device, the floating salvaging device comprises a salvaging box, a hollow cavity is formed in the salvaging box, both a salvaging opening and a suction opening communicate with the hollow cavity, the salvaging opening and the hollow cavity form an L-shaped cavity, and a floating body is arranged at the bottom of the L-shaped cavity. According to the floatable riverway garbage salvaging device, water in a drain pipe is discharged backwards after the direction of a steering pipe is changed, so that sucked water is utilized; other power driving is not needed, so that the salvaging cost of the device is reduced; and in addition, separated water is adsorbed through activated carbon in a cavity of a filter layer, so that to-be-discharged water is purified, the pollution of discharged water to river water is reduced, and the environmental friendliness of the salvaging device is increased.

The invention discloses a rotation-free locking ring type sliding sleeve with a ball seat capable of being taken out. The sliding sleeve comprises a sliding sleeve body, an inner sliding sleeve and a ball seat cylinder, wherein the sliding sleeve body is composed of an upper connector, an outer cylinder and a lower connector. The sliding sleeve body and the inner sliding sleeve are fixed through a shear nail, the inner sliding sleeve and the ball seat cylinder are fixed through a shear nail, a fluid outlet hole is formed in the upper portion of the outer cylinder, and a clamping spring hole is formed in the inner wall of the outer cylinder. A switch clamping groove is formed in the inner wall of the upper portion of the inner sliding sleeve, a clamping spring is installed on the outer wall of the middle of the inner sliding sleeve, and a locking ring is installed in the peripheral direction of the inner wall of the middle of the inner sliding sleeve. A plurality of female pawls are arranged on the inner side of the upper end of the ball seat cylinder in the peripheral direction, a plurality of male pawls are arranged at the lower end of the ball seat cylinder in the peripheral direction, and the middle of the inner wall of the ball seat cylinder protrudes inwards for forming a variable diameter ball seat. An inwards-concave step-shaped locking ring groove is formed in the middle of the outer wall of the ball seat cylinder, and the inner side of the locking ring is clamped in the upper portion of the locking ring groove. When the inner sliding sleeve moves to the lower end of the outer cylinder, the clamping spring on the inner sliding sleeve is clamped into the clamping spring hole in the outer cylinder. All base seat cylinders can be salvaged through the sliding sleeve in a disposable mode, and a full through path is achieved.

The invention discloses a sieve tube sand prevention pipe column and a releasing method thereof. The pipe column comprises a sand prevention well remaining pipe column and a flushing pipe column, wherein the sand prevention well remaining pipe column comprises, in order from top to bottom, a sand prevention packer, a length adjusting light pipe, a sand prevention sieve pipe, a sanding setting light pipe and a flushing tool, and the flushing tool is provided with a switching mechanism; the flushing pipe column includes a washing pipe, a vibration washing machine disposed on the washing pipe anda flushing insert connecting tool matched with the flushing tool; when sand sticking occurs in the sand prevention well remaining pipe column, the flushing pipe column is lowered into the sand prevention well remaining pipe column, the flushing insert connecting tool opens the switching mechanism of the flushing tool, and the annulus outside the sand prevention well remaining pipe column is communicated with the interior of the flushing pipe column to form a flushing and releasing circulation passage. The sieve tube sand prevention pipe column and the releasing method thereof achieve high-efficiency releasing and quick salvage of the sieve tube sand prevention pipe column by means of liquid flow flushing.

The invention discloses a metal product fishing device which comprises a floating frame and a shell. The shell is fixedly arranged on the floating frame, a first push groove and a second push groove which are communicated with each other and are extended in the up-down directions are formed in the left and the right of the inside of the shell, a second push block is arranged in the second push groove and is connected with the second push groove in a sliding fit manner, a first elastic component is arranged in the second push groove and is positioned on the top of the second push block, the topof the first elastic component is fixedly connected with the top wall of the second push groove, and the bottom of the first elastic component is fixedly connected with the top surface of the secondpush block. The metal product fishing device has the advantages that the metal product fishing device is simple in structure and convenient to use; fishing operation can be carried out on metal material products under the automatic control, the metal product fishing device can move under the automatic control, and accordingly, the metal material product fishing accuracy and continuity can be greatly improved, the metal material product fishing efficiency and metal material product fishing effects can be improved, and the metal product fishing device is low in fishing cost and suitable for popularization and utilization.

The invention discloses a self-floating type offshore unmanned aerial vehicle, comprising a vehicle body and wings, wherein the wings are arranged at the two sides of the vehicle body; vertical take-off and landing arms are arranged on the two wings; and the vehicle body is made of a carbon composite PVC foam material; the wings are made of a Kevlar composite PVC foam material; the vertical take-off and landing arms are made of a 3K carbon fiber material; and falling water can be guaranteed to float on a water surface through materials and a pneumatic design of a machine body . The invention also discloses a falling-into-water search and rescue system, which is used for falling-into-water trigger alarm, floating modeling analysis and instruction search and rescue operation of the unmannedaerial vehicle, comprising the unmanned aerial vehicle, a Beidou satellite emitter, an AIS base station, a command terminal and a plurality of AIS ship terminals, wherein the command terminal sends analarm signal to the Beidou satellite emitter according to Beidou positioning information of the unmanned aerial vehicle and AIS identification information of the AIS ship terminals, and arrange shipsnearby for salvage through modeling, calculation and analysis. The falling-into-water search and rescue system is convenient for search and rescue of the unmanned aerial vehicle which falls into water, thus reducing salvage cost and being safe and reliable in an search and rescue process.

The invention relates to the technical field of oil and gas exploitation, and particularly discloses a horizontal well coiled tubing salvage method which comprises the following steps: S1, lightly finding a fish top: descending a salvage tool into a well until the salvage tool touches a fish, then lifting an oil tube by 2-3 m, and recording a normal hanging weight; s2, pressurizing and fishing: lowering an oil pipe to pressurize the top of the fish for 20-50kN, if the hanging weight is increased at the moment, indicating that the fish enters, then lifting the oil pipe, and if the hanging weight is higher than the normal hanging weight at the moment, indicating that the fish is fished; if the hanging weight is not changed, continuously pressurizing the falling fish by 20-50kN, and judging the fish entering condition again; the pump is stopped after 10-20 seconds after the pump is started, if the hanging weight or the pump pressure is increased, it is indicated that the fish enters the oil pipe, then the oil pipe is lifted, and if the hanging weight is increased compared with the normal hanging weight, it is proved that the fallen fish is possibly fished. The scheme is used for solving the problem that in the prior art, the fishing efficiency of shale gas well fallen fish fishing is low.

An energy-accumulating hoisting method for raising sunken ship or hoisting over-weight and over-long object is disclosed. Two hoisters are arranged on a salvage ship. Many lifting points are arranged on the sunken ship. The steel cable of hoister serially passes through the single pulleys of 2 lifting points. When each steel cable runs up and down in round trip mode, multiple float boxes are tied in accumulative mode until all the lifting point has the float boxes. Another method is uses of float boxes and sunk balls. When all lifting points have been tied with float boxes and sunk balls, the sunk balls is removed and the sunken shift is raised by the float boxes.

The invention provides an overshot with slots for salvaging sucker rods. The overshot with slots comprises a tubular overshot body, a section of connection oil pipe is fixedly arranged at the upper portion of the overshot body, and the upper portion of the connection oil pipe is fixedly connected with a short section. Two slots facing to each other are formed in the pipe wall of the overshot body. Slot tongues inclining upwards towards the inside of the overshot body are formed on the slots. The distance between the tops of the two slot tongues facing to each other is smaller than the diameter of an upper coupling of each sucker rod. The overshot with slots for salvaging sucker rods can avoid large area of crude oil pollution in salvage of the sucker rods, reduce salvage cost and save manpower and material resources.