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37results about How to "Reduce work time" patented technology

Pulling-out and detaching tool for elbow type cable end

The invention discloses a pulling-out and detaching tool for an elbow type cable end. The pulling-out and detaching tool comprises a movable disc, a static disc, screw rods, rotary handles and the like. According to the principle of acting force and counter-acting force in physics, an object is fastened gradually based on circular rotation and friction of the inclined surface of the object so as to enable the elbow type cable end to be detached; a large amount of physical power can be saved, the working time consumption of operators in detaching the elbow type cable end can be effectively reduced so as to finish first-aid repair in a faster and better manner, and great economic benefit can be brought; the integral configuration of the static disc and the movable disc is suitable for being used in a ring main unit or a high-voltage junction box, so that the cable end is effectively protected, the damage to the cable end caused in manual pulling-out process can be avoided, and the external insulation of the cable end is protected.
Owner:XUANCHENG POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +1

Pipe string and completion method

The invention provides a pipe string and a completion method. The pipe string comprises a first oil pipe, a second oil pipe, a packer and a third oil pipe which are arranged from the upper part to the lower part, wherein at least two gas lift valves are arranged between the first oil pipe and the second oil pipe; the first oil pipe is positioned in a sleeve in an oil well; each gas lift valve can be opened through pressure of gas in an annular area of a sleeve section in the oil well, and can ensure that the gas enters into the gas lift valve from the side part of the gas lift valve; the gas lift valves are longitudinally arranged at intervals; adjacent gas lift valves are communicated with each other through a fourth oil pipe; the bottom end of the first oil pipe is communicated with the top end of the gas lift valve positioned at the uppermost part; the bottom end of the gas lift valve positioned at the lowermost part is communicated with the top end of the packer through the second oil pipe. Compared with the prior art in which an acid fracturing or acidizing transformation function, a gas lift function and a completion function can be realized through two drilling, the pipe string and the completion method can realize the acid fracturing or acidizing transformation function, the gas lift function and the completion function by drilling the pipe string once, save the working duration, and improve the working efficiency.
Owner:PETROCHINA CO LTD

Overall installation device and method for power double cross arm assembly

The invention provides an overall installation device for a power double cross arm assembly. The device comprises a longitudinal strut, a transverse strut vertically disposed at an upper portion of the longitudinal strut, a holt hoop iron which is rotatably disposed at a lower portion of the longitudinal strut and is used for fixedly connecting with wire poles, and a bracket which is disposed between the transverse strut and the holt hoop iron, is in rotation lifting up and down connection with the longitudinal strut along the length direction of the longitudinal strut and is used for supporting double cross arms and taking the double cross arm assembly to move up and down, wherein a hanging member for hanging a traction rope is disposed on the transverse strut. The invention further provides an overall installation method for the power double cross arm assembly. The device is advantaged in that technical problems of long power-off time and large construction intensity of workers of the wire poles existing in the cross-arm installation technology in the prior art are solved.
Owner:STATE GRID CORP OF CHINA +1

Novel concrete base safety guard device

The invention discloses a novel concrete base safety guard device, comprising a base and a vertical post arranged in the base; the base is made of cast-in-place concrete or pre-made in a factory; thebase is integrated to a subgrade; a reinforcing cage is embedded in the base; a post cavity is arranged in the base; a post sleeve is pre-arranged on the inner periphery of the post cavity and is fixedly connected with the reinforcing cage; the upper peripheral rig of the post sleeve is fixedly connected with a reinforcing disc, the lower peripheral edge of the post sleeve is provided with a drainpassage, a plurality of limiting blocks are fixed to the inner wall of the post sleeve, and a plurality of damping seal rings are arranged between the inner wall of the post sleeve and the vertical post from top to bottom. The novel concrete base safety guard device has the advantages that the damaged vertical post is quick to change so that operating time is effectively shortened for construction staff; the novel concrete base safety guard device is well compatible with current standard facilities and is highly applicable; materials selected herein are common, the novel concrete base safetyguard device is simple to manufacture and widely applicable, and the vertical post in a vertical tube can be protected from damage so that reusing is achieved; the novel concrete base safety guard device is solid, durable, economical and reliable, and low in cost.
Owner:张玉建

Assistant guiding device for fabric feeding of sewing machine

The invention provides an assistant guiding device for fabric feeding of a sewing machine, which guides the forced feeding when the exposing state of a wire-state sewing terminal part is guided by thefabric clamped and maintained by a match plate, and by the match plate through the fabric feeding device. An upper shaping plate of the match plate is provided with a guide rail part which covers thewire-shaped sewing terminal part of the fabric and is parallel to or approximately parallel to the wire-shaped sewing terminal part. The sewing machine body is provided with a rotating body for feeding and guiding, which conducts feeding and guiding through the buckling or abutting with the guide rail part during the forced feeding of the match plate and the fabric, so that the wire-shaped sewingterminal part of the fabric will not separate from the sewing part. The invention is advantageous in that the feeding position of the wire-shaped sewing terminal part of the fabric can be guided in amanner of being independent from the proficiency of sewing operators and having good stability; bad situations caused by cutting off of wire, bias or snaking of sewing position can be eliminated; sewing products with good appearance can be completed reliably and stably according to the regulated shape.
Owner:YAMATO SEWING MASCH MFG CO LTD

Collaborative operation system, mixing plant and mixing truck

The invention provides a collaborative operation system, a mixing plant and a mixing lorry, the system comprises the mixing plant and the mixing lorry, the mixing plant comprises a server, a shooting device and a communication module, the mixing lorry and the server are in communication connection through the communication module, and the shooting device and the server are in communication connection through the communication module; the shooting device is used for monitoring the positions of a feed hopper of the mixer truck and a discharge port of the mixing station to obtain monitoring video data; the server is used for sending a video target address to the mixer truck when it is determined that the mixer truck is in communication connection with the server through the communication module; and the agitating lorry is used for obtaining target video data based on the video target address, displaying the obtained target video data and finishing alignment of the feeding hopper and the discharging opening based on the target video data. The device is used for overcoming the defects of long consumed time and low efficiency caused by the fact that a user needs to get off a vehicle to check whether a feeding hopper and a discharging opening are aligned or not in the prior art.
Owner:SANY SPECIAL PURPOSE VEHICLE CO LTD

Cable elbow head extraction tool

The invention relates to a cable elbow head extraction tool. The cable elbow head extraction tool is characterized in that the extraction tool comprises an extraction tool fixing plate, an electric push rod and a push rod joint; a base of the electric push rod is fixed to the extraction tool fixing plate; a telescopic end of the electric push rod is connected with the push rod joint; and the pushrod joint is fixed to a pull ring of a cable elbow head. The extraction tool is convenient to carry, simple to operate, high in efficiency, safe and suitable for application and popularization.
Owner:FUSHUN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1

String and well completion method

ActiveCN106812478ARealize functionRealize sand control functionDrilling rodsFluid removalAcid fracturingEngineering
The invention provides a string and a well completion method; the string includes a first tube, a packer, a second tube, and a sand preventer arranged sequentially from top to bottom; the bottom end of the first tube is communicated with the top end of the packer; the bottom end of the packer is communicated with the top end of the second tube; the sand preventer includes a sand prevention tube, a sand settling tube and a pressure control switch valve connected sequentially from top to bottom; the top end of the sand prevention tube is communicated with the bottom end of the second tube, the bottom end of the sand prevention tube is communicated with the top end of the sand settling tube, and the side wall of the sand prevention tube is provided with a plurality of through holes admitting oi land gas; the pressure control switch valve is arranged at the bottom of the sand settling tube and may be opened or closed under the action of fluid pressure in the tubing. The functions of acid fracturing or acidifying modification, flowing well completion and sand prevention can be achieved just through the trip-in of the string, operating time is shortened, and working efficiency is improved.
Owner:PETROCHINA CO LTD

A job scheduling control method, device, equipment and storage medium

The present invention provides a job scheduling control method, device, device and storage medium. The method includes: obtaining a preset workflow task state table in response to a task execution instruction, wherein the task state table includes at least one job of the task Status information; determine the job status of the task to be executed according to the task execution instruction and the task status table; determine the job scheduling sequence according to the job status of the task to be executed; control the task to be executed to execute the task to be executed according to the job scheduling sequence. The present invention determines the job scheduling sequence through the job status information of the tasks to be executed, and the job scheduling sequence can be determined by the task execution instructions and the preset workflow task status table, and then obtains the job scheduling of the tasks to be executed, and the present invention obtains the job scheduling from the job status information Job scheduling, execute tasks to be executed according to the job scheduling sequence, which can reduce and shorten the job duration of tasks and improve job efficiency.
Owner:北京宇信科技集团股份有限公司

Cell culture device and cell culture system

Provided is a cell culture device (100) provided with an incubator (5) capable of maintaining the inside thereof at an environment suitable for cell growth, a cell culture container (4) accommodated inside the incubator (5), an optical data acquiring unit (1) for acquiring optical data of a culture medium in the cell culture container (4), a culture medium exchange unit (2) for exchanging the culture medium in the cell culture container (4), and a control means (3), the cell culture device (100) determining the timing of culture medium exchange on the basis of a temporal change in the opticaldata acquired by the optical data acquiring unit (1).
Owner:OLYMPUS CORP

Intelligent environment-friendly coating spraying device

The invention discloses an intelligent environment-friendly coating spraying device. The intelligent environment-friendly coating spraying device comprises a spraying module and a detection module, wherein the spraying module is used for spraying ground coating; and the detection module is used for detecting the content of formaldehyde and carbon monoxide at a spraying position in a spraying process and outputting a digital signal during detection. According to the intelligent environment-friendly coating spraying device, coating in a storage box is pumped through a material pumping pump and a four-way pipe in the spraying module, and the spraying distance is controlled by utilizing a distance measuring signal transmitted by an ultrasonic distance measuring instrument, so that the intelligent environment-friendly coating spraying device has the functions of automatic discharging and automatic distance measuring spraying; during spraying operation, a central processing unit controls an air pump to start, air pumped by the air pump enters a second box body, then carbon monoxide and pollution particles are intercepted and filtered through an activated carbon filtering layer and a glass fiber filtering layer, and finally toxic and harmful substances in the air are killed through an ultraviolet lamp tube, so that the treatment of environment-friendly purification of coating spraying is effectively achieved.
Owner:倪捍聪

Inner drilling pipe inserting compaction grouting reinforcement method based on pipe gallery bottom plate cavity

PendingCN112982372AShort conveying pathSmall hole depthArtificial islandsUnderwater structuresWater leakageSoil science
The invention discloses an inner drilling pipe inserting compaction grouting reinforcement method based on a pipe gallery bottom plate cavity. The method comprises the steps that a grouting hole point position is positioned on a pipe gallery bottom plate and identified; a steel plate is placed at the identified point position and fixed through an expansion bolt, a hole is formed in the center of the steel plate, and the hole diameter is not smaller than that of a grouting hole; the pipe gallery bottom plate is drilled downwards in the center hole of the steel plate to form the grouting hole, and the hole is formed to the bottom of a bottom plate cushion layer; a grouting pipe is inserted into the formed grouting hole, and gaps around the grouting pipe are compacted; high-pressure grouting is conducted in the grouting pipe, grouting slurry is pressed into a soil layer below the pipe gallery bottom plate, and the soil layer is compacted; and when the slurry in the grouting hole is solidified and has no water leakage condition, the grouting pipe is cut off along an upper opening of the steel plate, and the grouting hole is sealed through welding of a sealing plate. The problem of the pipe gallery bottom plate cavity is solved; and the structural quality hidden danger of a comprehensive pipe gallery is eliminated, the bottom plate cavity defect is overcome in a grouting reinforcement manner, and the phenomena of water seepage and crack structure damage of the comprehensive pipe gallery in the later period are prevented.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Tool-setting adjusting assembly for cutting moving cutter and hay cutter with assembly

The invention provides a tool-setting adjusting assembly for a cutting moving cutter and a hay cutter with an assembly. The tool-setting adjusting assembly comprises a moving cutter and a rotary cutter rest, cutter holders uniformly distributed on the periphery of the rotary cutter rest comprise a cutter holder plate and a cutter adjusting seat, and the cutter adjusting seat is arranged at the rear part of the cutter holder plate and is vertical to the cutter holder plate; a cutter support plate of the cutter adjusting angle frame is arranged between the moving cutter and the cutter seat plate; a fixed bolt penetrates through a moving cutter bolt hole, a cutter support plate bolt hole and a cutter seat plate long hole and is matched with a nut so as to fasten the moving cutter; and a cutter adjusting bolt and a nut are mounted on the cutter adjusting seat, and the cutter adjusting bolt acts on the surface of a vertical plate of the cutter adjusting angle frame. According to the technical scheme, the convenient, rapid and accurate tool-setting operation is realized without damaging a cutter body, and the technical problems perplexing enterprises and users that the repeated tool-setting operation is tedious after a cutting edge is absorbed and overhauled, the labor amount is large, the cutter body is greatly damaged, the operation time is long, and the tool-setting operation generally needs to be finished by a professional with rich experiences are solved.
Owner:刘全 +1

Double-sided welding machine table

The invention discloses a double-sided welding machine table. The double-sided welding machine table comprises a bearing platform, a carrier platform, a solder supply mechanism, a first welding mechanism and a second welding mechanism, wherein the bearing platform is provided with a first bearing portion and a second bearing portion; the carrier platform is arranged on one side of the bearing platform in a first direction, is located between the first bearing portion and the second bearing portion, and is provided with an accommodating space; the accommodating space is used for accommodating a jig for clamping a to-be-welded piece; the solder supply mechanism is arranged on one side of the carrier platform in a third direction orthogonal to the first direction and a second direction, and corresponds to the accommodating space; the first welding mechanism is arranged on the first bearing portion, and comprises a first welding head; the second welding mechanism is arranged on the second bearing portion; the first welding mechanism and the second welding mechanism are located on two opposite sides of the carrier platform in the second direction; and the second welding mechanism comprises a second welding head.
Owner:LUXSHARE ITECH(ZHEJIANG) CO LTD

Automobile wire harness stranding machine

The invention discloses an automobile wire harness stranding machine, which comprises a shell and a matched wire spreader, an annularly distributed displacement cavity with a leftward opening is arranged in the wire spreader, an electric sliding rail is fixedly arranged on the right wall of the displacement cavity, a U-shaped mounting block in sliding connection with the displacement cavity is fixedly arranged on the left end face of the electric sliding rail, and a smooth cavity with a leftward opening is arranged in the U-shaped mounting block; the device is provided with the wire laying device, the clamping block and the shearing block, multiple strands of conductor wires can be collected, clamped and rotated to be twisted into a wire harness, then the wire harness is sheared and collected, assistance of other equipment is not needed, and the device has the advantages of being convenient to use and improving the working efficiency, and is further provided with the cooling block, the annular mounting block and the rolling shaft. The outer ring of the wire harness can be wrapped with a plastic layer for shaping and cooling to ensure the plastic quality, the annular mounting block assists in twisting, the rolling shaft assists in outputting the cut wire harness, and the device has the advantages that the working time is shortened, and the quality of a workpiece is improved.
Owner:姜圳

Industrial robotic arm for controlling industrial numerical control machine tool

The invention relates to the technical field of mechanical arms, and discloses an industrial mechanical arm for controlling an industrial numerical control machine tool, which comprises a first base, a second base, a bottom mechanical arm, a middle-end mechanical arm and a front-end mechanical arm, and one ends of the bottom mechanical arm, the middle-end mechanical arm and the front-end mechanical arm are connected pairwise. The other end of the bottom mechanical arm is connected to the top of the second base. After the extending sleeve, the clamping component, the clamping power component, the pressed supporting component and the secondary locking component are assembled and matched, the clamping and locking auxiliary mechanical arm is formed and serves as an extending structure of a front-end mechanical arm, and besides installation support and stable use support are provided for a specified clamping jaw subsequently, the clamping and locking auxiliary mechanical arm is used for clamping and locking. The extension sleeve and the pressed supporting component can be rapidly separated and replaced under the clamping and locking effects of the clamping power component, the clamping component and the secondary locking component, the maintenance or replacement operation time of workers is shortened, and the use efficiency of the whole equipment is improved.
Owner:维徕智能科技东台有限公司

Flood drainage emergency rescue pump control method, device and facility and flood drainage recovery vehicle

The invention discloses a flood drainage emergency rescue pump control method, device and facility and a flood drainage recovery vehicle. The method comprises the steps that the drainage amount estimated value corresponding to each flood drainage water pump is obtained; the water pump rotating speed and flow of each flood drainage water pump are obtained through preliminary calculation based on the drainage amount estimated value of each flood drainage water pump and parameters of each flood drainage water pump; the current power of each flood drainage water pump is calculated, and the current lift of each flood drainage water pump is obtained according to the current power of each flood drainage water pump; when the current lift of each flood drainage water pump does not exceed the maximum allowable lift of each flood drainage water pump, the optimal operation power of each flood drainage water pump is calculated according to the total power of the flood drainage water pumps, the rated power of the flood drainage water pumps and the maximum value of the output power of a generator set; and the maximum value of the input current of each flood drainage water pump is adjusted according to the optimal operation power of each flood drainage water pump to control the water pump rotating speed and flow of each flood drainage water pump. According to the flood drainage emergency rescue pump control method, device and facility and the flood drainage recovery vehicle, the power utilization rate and the flood drainage efficiency of the emergency power supply are improved, and the aim of completing the rescue task most quickly can be achieved.
Owner:ZOOMLION ENVIRONMENTAL IND CO LTD

A kind of processing method of lens sticking film

The invention discloses a processing method for lens film pasting. According to the technical scheme, the processing method is characterized by including the following steps that (1) gluing is conducted, specifically, UV glue or thermocuring glue is applied between a base lens and a mother lens; (2) pasting is conducted, specifically, the base lens and the mother lens are press-fitted through a press-fitting mold; (3) the first time of curing is conducted, specifically, in the process that the base lens and the mother lens are continuously press-fitted through the press-fitting mold in the step (2), a UV lamp or thermocuring equipment is used for primarily curing the UV glue or the thermocuring glue, wherein the working time duration of the UV lamp or the thermocuring equipment is 5-30 seconds; and (4) the second time of curing is conducted, specifically, a lens is taken out of the press-fitting mold after the step (3), and then the UV lamp or the thermocuring equipment is used for secondarily curing the UV glue or the thermocuring glue, wherein the working time duration of the UV lamp or the thermocuring equipment is 20-180 seconds. The processing method can effectively improve press-fitting efficiency of lens film pasting, so that the lens manufacturing cost is lowered.
Owner:浙江宝乐维科技有限公司 +1

An operating method and device for installing a switch on a pole in a straight line converted into a tension section

The invention relates to the field of the hot line work of a 10kV power distribution network, in particular to an operation method and device for additionally arranging a column switch on a linear rod improved strain section. The method is characterized in that a lead is lifted and descended by a self-hanging insulation cross bar in an assisting mode, then the column switch is positioned by an insulation bucket arm vehicle, and equipment does not need to transfer and carry a load in the operation flow of the whole column switch arranging process. Compared with the prior art, the operation method and device for additionally arranging the column switch on the linear rod improved strain section have the beneficial effects that (1) a hot line work technology is adopted, the power of enterprises at the lower end of the line is not influenced, after being mounted, the column switch can be directly put into use without the need of reducing the lower end load of an operation point, the number of people participating in the operation is reduced and the whole operation time is shortened; (2) the column switch is hoisted and mounted by an insulation crane arm of the insulation bucket arm vehicle, so the labor intensity of operation staff in the insulation bucket is reduced; participating of hoisting vehicles is reduced and the operation difficulty is reduced.
Owner:ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +1

Automatic feeding device for processing step drill

The invention discloses an automatic feeding device for processing a step drill. The automatic feeding device comprises a working table, a PLC (Programmable Logic Controller), a support shaft, a rotating mechanism, a limiting mechanism and a thrusting mechanism, wherein the rotating mechanism is used for rotating a raw material rod; the limiting mechanism comprises an upper limiting mechanism anda lower limiting mechanism; the upper limiting mechanism comprises an upper limiting mechanism and a lower limiting mechanism; the lower limiting mechanism comprises a lifting motor, a lifting rod anda second limiting block. The raw material rod is limited by the first limiting block and the second limiting block, and then the raw material rod can be prevented from sliding off when being rotated;the thrusting mechanism comprises a sliding sleeve, a linear lifting motor, a grasping motor and grasping claws; the raw material rod is tightly grasped by the grasping claws and is moved through thethrusting sliding sleeve, and then a good moving effect can be achieved; an infrared sensor is arranged at the tail end of the right side of the working table; when being moved right above the infrared sensor, the raw material rod can be sensed in time, a feeding distance can be calculated, and the processing precision can be improved; by adopting the automatic feeding device, the raw material rod can be intelligently conveyed into a processing device, and time and labor can be saved.
Owner:ZHENGJIANG DANTU DISTRICT NINGBO RUN TOOLS

Socket wrench with adjustable inner diameter and using method thereof

The invention relates to the field of socket wrenches, in particular to a socket wrench with the adjustable inner diameter and a using method thereof. The socket wrench with the adjustable inner diameter comprises a socket head (1) and a handle (2), and is characterized in that the socket head (1) comprises socket elastic pieces (11), an adjusting screw rod (12), an adjusting nut (13) and a handleconnecting piece (14), the bottoms of the socket elastic pieces (11) are fixed to the outer edge of the top end surface of the adjusting screw rod (12), and the adjusting nut (13) is screwed on the external thread of the adjusting screw rod (12); and the handle (2) comprises a socket head connecting piece (21), a connecting rod (22) and a rocking handle (23), the socket head connecting piece (21)and the handle connecting piece (14) are matched with each other. The use method of the socket wrench with the adjustable inner diameter is characterized by comprising the following steps of (1) sleeving, and (2) twisting. The socket wrench with the adjustable inner diameter has high adaptability, reduces operation time and shortens construction period.
Owner:SHANGHAI BAOYE GRP CORP

Electric restoration system of heavy metal pollutants

The embodiment of the invention provides an electric restoration system of heavy metal pollutants and belongs to the technical field of soil restoration. The electric restoration system comprises a treatment box, an electrode plate, a water treatment assembly and a conveying assembly, wherein a containing space is arranged in the treatment box, and soil can be contained in the containing space; the input end and the output end of the water treatment assembly are correspondingly connected with the two sides of the containing space, and the water treatment assembly can be used for treating liquid containing heavy metal ions; the electrode plate can be connected with a power source to perform electrolytic operation on the soil, so that the liquid containing the heavy metal ions is generated,and the liquid containing the heavy metal ions is treated through the water treatment assembly. The technical effects that high efficiency of electric restoration is kept, the operation duration is shortened, and the electricity consumption during single-time operation is lowered.
Owner:浙江中地净土科技有限公司

SF6 gas leakage laser inspection vehicle

The invention discloses an SF6 gas laser inspection vehicle. The structure comprises four systems which are a vehicle frame, a folding handle, wheels, tripod support and the like. The tires select large rubber tires. The tripod support is arranged on a trolley to fix the laser leakage inspection vehicle, therefore the fast movement of an instrument can be achieved during working. Compared with the prior art of the movement manner of the manual transportation, the improvement brings good effect, reduces the quantity of work force, shortens the operation time, lowers the labor intensity and increases work efficiency. The SF6 gas leakage laser inspection vehicle has the advantages of being scientific in design, capable of being used as a work table, being simple and convenient to operate and the like.
Owner:STATE GRID CORP OF CHINA +1

Pipe string and completion method

The invention provides a pipe string and a completion method. The pipe string comprises a pipe string fixing component and an oil well pump component, wherein the pipe string fixing component comprises a first oil pipe, a pump base, a second oil pipe, a packer, a third oil pipe and a sand control device which are arranged from the upper part to the lower part in sequence; the sand control device comprises a sand control pipe, a sand setting pipe and a pressure control switching valve which are connected from the upper part to the lower part in sequence; the top end of the sand control pipe is communicated with the bottom end of the third oil pipe; a plurality of through holes for oil gas to enter are formed in the side wall of the sand control pipe; the pressure control switching valve can be opened or closed under the action of the fluid pressure in the oil pipes; the oil well pump component is positioned in the first oil pipe; the bottom end of the oil well pump component is detachably connected with the pump base. Compared with the prior art in which an acid fracturing transformation pipe string or acidizing transformation pipe string is drilled and then is pulled out, and then a sand control pipe string and a mechanical extraction oil pumping completion pipe string are respectively drilled, the pipe string and the completion method can realize acid fracturing or acidizing transformation, mechanical extraction oil pumping completion and sand control functions at the same time, save the working duration, and improve the working efficiency.
Owner:PETROCHINA CO LTD

Pipe String and Completion Methods

ActiveCN106812478BRealize functionRealize sand control functionDrilling rodsFluid removalAcid fracturingEngineering
The invention provides a string and a well completion method; the string includes a first tube, a packer, a second tube, and a sand preventer arranged sequentially from top to bottom; the bottom end of the first tube is communicated with the top end of the packer; the bottom end of the packer is communicated with the top end of the second tube; the sand preventer includes a sand prevention tube, a sand settling tube and a pressure control switch valve connected sequentially from top to bottom; the top end of the sand prevention tube is communicated with the bottom end of the second tube, the bottom end of the sand prevention tube is communicated with the top end of the sand settling tube, and the side wall of the sand prevention tube is provided with a plurality of through holes admitting oi land gas; the pressure control switch valve is arranged at the bottom of the sand settling tube and may be opened or closed under the action of fluid pressure in the tubing. The functions of acid fracturing or acidifying modification, flowing well completion and sand prevention can be achieved just through the trip-in of the string, operating time is shortened, and working efficiency is improved.
Owner:PETROCHINA CO LTD

Tubular pile body butt joint construction method

The invention particularly relates to a tubular pile body butt joint construction method. The method is characterized in that an assembly tool is involved, and further comprises the following steps that before a first section of tubular pile (3.1) is in butt joint with a second section of tubular pile (3.2) after being constructed, limiting rods (2) are welded on a hoop (1) of the outer wall of the tubular pile (3.1), then the tubular pile (3.2) is lifted for butt joint work, when the distance from the lower end part of the tubular pile (3.2) subjected to lifting to the top of the half part, not provided with the limiting rods (2), of the tubular pile (3.1) is 5 centimeters or so, the tubular pile (3.2) is pushed, so that the outer wall of the tubular pile (3.2) is tightly attached to thethree limiting rods (2) welded to the outer wall of the hoop (1), the lifted tubular pile (3.2) can be placed down, and the tubular pile (3.2) and the tubular pile (3.1) are attached to each other. Through the tool and the construction method, the butt joint work of a pile body can be quickly and efficiently completed, the butt joint accuracy is high, the operation duration can be effectively shortened, and the welding quality is improved.
Owner:SHANGHAI BAOYE GRP CORP
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