CN103867156A - Remote control operation machine-assisted releasing device used for oil-water well repair - Google Patents
Remote control operation machine-assisted releasing device used for oil-water well repair Download PDFInfo
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- CN103867156A CN103867156A CN201410101040.5A CN201410101040A CN103867156A CN 103867156 A CN103867156 A CN 103867156A CN 201410101040 A CN201410101040 A CN 201410101040A CN 103867156 A CN103867156 A CN 103867156A
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Abstract
The invention discloses a remote control operation machine-assisted releasing device used for oil-water well repair and mainly aims to solve the problem that an oil pipe is hard to lift up directly through an operation machine once getting stuck during the operation process of the minor repair of an oil well. The remote control operation machine-assisted releasing device is characterized by consisting of a hydraulic actuating mechanism, a hydraulic power supply system and a hydraulic control system, wherein the hydraulic actuating mechanism mainly consists of a traveling hydraulic slip, a lifting hydraulic cylinder, an anchor hydraulic slip and a hydraulic auxiliary support unit; the hydraulic actuating mechanism is fixedly connected with a wellhead casing flange or a large cross joint through a bolt; the hydraulic auxiliary support unit mainly comprises support hydraulic cylinders, spiral support feet, a support connecting plate and control oil lines for supporting piston rods to extend and retract; the hydraulic power supply system is realized by adopting a diesel driven hydraulic pump. By utilizing the remote control operation machine-assisted releasing device, operating personnel can perform control far away from a wellhead, and by matching the lifting hydraulic cylinder and the hydraulic slips, a stuck pipe column is lifted out from the well gradually.
Description
Technical field
The present invention is the mechanical device in a kind of producing well and water injection well light maintenance operation process that is applied to field produces, a kind of in the time running into oil pipe and be stuck specifically, and less important work machine is by the Long-distance Control release device that is blocked oil pipe in well and enhance.
Background technology
In oil extraction in oil field process, producing well or water injection well, in the time of workover operation construction, often can run into oil pipe and be stuck, cannot normal operation.And most jam faults are as long as increase lifting force, generally can remove by card state.But, because live load is larger, at this moment, oil pipe cannot be proposed from well if depend merely on the supporting capacity of working rig derrick; If solve this jam fault and the operation that carries out large repairs will increase operating cost greatly, have a strong impact on economic benefit and fall.
Summary of the invention
In order to solve the technical problem of mentioning in background technology, the invention provides a kind of device that can less important work machine, in the time running into oil pipe and be stuck, can will in well, be enhanced by card oil pipe by less important work machine.
Technical scheme of the present invention is: this kind is for the remotely controlled operation machine auxiliary jam release device of oil-water well well workover, formed by hydraulic actuating mechanism, hydraulic power source system and hydraulic control system, between hydraulic actuating mechanism and wellhead casing pipe flange or big four, be fixedly connected with bolt, described hydraulic power source system is connected with hydraulic actuating mechanism by high-pressure hose at a distance with hydraulic control system, to realize the transmission of Long-distance Control and hydraulic power; Wherein, described hydraulic actuating mechanism is mainly made up of hydraulic hoist cylinder, the hydraulic pressure pipe slips that moves about, fixed hydraulic slips and hydraulic base support unit; Described hydraulic power source system adopts Diesel Driven hydraulic pump to realize, system mainly forms by being assembled in safety valve, fuel tank, strainer, accumulator, switch valve and a pressure meter on skid-mounted type base, provides required hydraulic power supply to be embodied as described hydraulic actuating mechanism; Described hydraulic control system is made up of some remote pressure regulating valve, hand-operated direction valve, reducing valve, pressure sensor, synchronous valve and bidirectional hydraulic locks etc. that are arranged on hydraulic manifold block and carry out on hydraulic cylinder, to realize the control to described device.
Described hydraulic hoist cylinder is arranged symmetrically with and is formed by 2 lifting hydraulic cylinders, and synchronous working; Described hydraulic pressure pipe slips and the fixed hydraulic slips of moving about matches with described 2 lifting hydraulic cylinders, to realize the function that stuck pipe post is proposed from well; The basic structure of described move about hydraulic pressure pipe slips and fixed hydraulic slips is identical with component units, is made up of 2 slip hydraulic cylinders that are arranged symmetrically with, slips housing, oil inlet and outlet hydraulic quick coupler, 1 cover bidirectional hydraulic lock, slips supporting mass and slip dog; The oil circuit control of described slip hydraulic cylinder is all built in slips housing, slip hydraulic cylinder body and slip hydraulic cylinder front and rear cover, and sealing ring has been installed to prevent hydraulic fluid leak by bonding surface place, and described bidirectional hydraulic lock is arranged on slips housing; Described slips supporting mass and slip dog, for being used in conjunction with in pairs, can move and carry out folding in housing; Described difference of moving about hydraulic pressure pipe slips and fixed hydraulic slips is, the installation site of the described hydraulic pressure pipe slips that moves about is on described lifting hydraulic cylinder top, the installation site of described fixed hydraulic slips is in described lifting hydraulic cylinder bottom, on the top of described hydraulic base support unit; Described hydraulic base support unit is mainly stretched out with the oil circuit control of retracting, 1 oil inlet and outlet integrated valve block containing bidirectional hydraulic lock and is formed after connecting mutually with oil inlet and outlet hydraulic quick coupler by 4 supporting cylinders, 4 spiral support footing, 1 block of support and connection plate, 1 group of support piston bar; Described hydraulic base support unit can be by controlling the flexible height of adjusting support of supporting cylinder, thereby can share the excessive load while promoting oil pipe.
The present invention has following beneficial effect: in oil-water well workover treatment process, in the time running into oil pipe and blocked, can increase lifting force, less important work machine is lifted out the oil pipe that blocked in well, make that tubing string in workover treatment process rises, lower operation can be carried out smoothly, thereby reduce large well workover number of times, reduce operating cost, create good economic benefit.Meanwhile, the present invention adopts hydraulic pressure Long-distance Control and is provided with safety precautions, easy to operate, can meet Long-distance Control and handling safety needs in device lifting, clamping, support process.In addition, the equipment movement of this device, installation and hydraulic line connect convenient and swift, safe and reliable, and efficiency is high, can ensure the safety in operation and operation process.
Brief description of the drawings:
Fig. 1 is the structural representation of hydraulic actuating mechanism of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the assembling drawing () of hydraulic pressure pipe slips of the present invention.
Fig. 4 is the assembling drawing (two) of hydraulic pressure pipe slips of the present invention.
Fig. 5 is the assembling drawing (two) of hydraulic pressure pipe slips of the present invention.Fig. 3,4,5 has formed a complete assembling drawing of hydraulic pressure pipe slips of the present invention jointly.
Fig. 6 is the structure chart () of traveling slip housing of the present invention.
Fig. 7 is the structure chart (two) of traveling slip housing of the present invention.
Fig. 8 is the structure chart (three) of traveling slip housing of the present invention.Fig. 6,7,8 has formed a complete structure figure of traveling slip housing of the present invention jointly.
Fig. 9 is the structure chart () of stationary slip housing of the present invention.
Figure 10 is the structure chart (two) of stationary slip housing of the present invention.
Figure 11 is the structure chart (three) of stationary slip housing of the present invention.Fig. 9,10,11 has formed a complete structure figure of stationary slip housing of the present invention jointly.
Figure 12 is the structure chart () of slip hydraulic cylinder of the present invention.
Figure 13 is the structure chart (two) of slip hydraulic cylinder of the present invention.
Figure 14 is the structure chart (three) of slip hydraulic cylinder of the present invention.Figure 12,13,14 has formed a complete structure figure of slip hydraulic cylinder of the present invention jointly.
Figure 15 is the structure chart () of slip hydraulic cylinder forward flange of the present invention.
Figure 16 is the structure chart (two) of slip hydraulic cylinder forward flange of the present invention.
Figure 17 is the structure chart (three) of slip hydraulic cylinder forward flange of the present invention.Figure 15,16,17 has formed a complete structure figure of slip hydraulic cylinder forward flange of the present invention jointly.
Figure 18 is the structure chart () of slip hydraulic cylinder rear flange of the present invention.
Figure 19 is the structure chart (two) of slip hydraulic cylinder rear flange of the present invention.Figure 18,19 has formed a complete structure figure of slip hydraulic cylinder rear flange of the present invention jointly.
Figure 20 is the structure chart () of slip hydraulic cylinder cylinder body of the present invention.
Figure 21 is the structure chart (two) of slip hydraulic cylinder cylinder body of the present invention.Figure 20,21 has formed a complete structure figure of slip hydraulic cylinder cylinder body of the present invention jointly.
Figure 22 is the structure chart () of slips supporting mass of the present invention.
Figure 23 is the structure chart (two) of slips supporting mass of the present invention.
Figure 24 is the structure chart (three) of slips supporting mass of the present invention.Figure 22,23,24 has formed a complete structure figure of slips supporting mass of the present invention jointly.
Figure 25 is the structure chart () of slip dog of the present invention.
Figure 26 is the structure chart (two) of slip dog of the present invention.Figure 25,26 has formed a complete structure figure of slip dog of the present invention jointly.
Figure 27 is the structure chart () of lifting hydraulic cylinder of the present invention.
Figure 28 is the structure chart (two) of lifting hydraulic cylinder of the present invention.
Figure 29 is the structure chart (three) of lifting hydraulic cylinder of the present invention.
Figure 30 is the structure chart (four) of lifting hydraulic cylinder of the present invention.Figure 27,28,29 and 30 has formed a complete structure figure of lifting hydraulic cylinder of the present invention jointly.
Figure 31 is the structure chart () of hydraulic base support unit of the present invention.
Figure 32 is the structure chart (two) of hydraulic base support unit of the present invention.
Figure 33 is the structure chart (three) of hydraulic base support unit of the present invention.Figure 31,32,33 has formed a complete structure figure of hydraulic base support unit of the present invention jointly.
Figure 34 is hydraulic system power unit structure layout of the present invention.
Figure 35 is hydraulic control unit structure chart of the present invention ().
Figure 36 is hydraulic control unit structure chart of the present invention (two).Figure 35,36 has formed a complete structure figure of hydraulic control unit of the present invention jointly.
Figure 37 is hydraulic system principle figure of the present invention.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described:
The present invention is a kind of remotely controlled operation machine auxiliary jam release device for oil-water well well workover, formed by hydraulic actuating mechanism, hydraulic power source system and hydraulic control system, between hydraulic actuating mechanism and wellhead casing pipe flange or big four, be fixedly connected with bolt, described hydraulic power source system is connected with hydraulic actuating mechanism by high-pressure hose at a distance with hydraulic control system, to realize the transmission of Long-distance Control and hydraulic power.
Wherein, described hydraulic actuating mechanism is the main load bearing component of release device, is mainly made up of hydraulic hoist cylinder, the hydraulic pressure pipe slips that moves about, fixed hydraulic slips and hydraulic base support unit; Described hydraulic power source system adopts Diesel Driven hydraulic pump to realize, system mainly forms by being assembled in safety valve, fuel tank, strainer, accumulator, switch valve and a pressure meter on skid-mounted type base, provides required hydraulic power supply to be embodied as described hydraulic actuating mechanism; Described hydraulic control system is made up of some remote pressure regulating valve, hand-operated direction valve, reducing valve, pressure sensor, synchronous valve and bidirectional hydraulic locks etc. that are arranged on hydraulic manifold block and carry out on hydraulic cylinder, to realize the control to described device.
Described hydraulic hoist cylinder is arranged symmetrically with and is formed by 2 lifting hydraulic cylinders, and synchronous working; Described hydraulic pressure pipe slips and the fixed hydraulic slips of moving about matches with described 2 lifting hydraulic cylinders, to realize the function that stuck pipe post is proposed from well, hydraulic hoist cylinder is responsible for applying and bearing the axial load of tubing string in unfreezing process, and realizes moving up and down of the hydraulic pressure pipe slips that moves about;
The basic structure of described move about hydraulic pressure pipe slips and fixed hydraulic slips is identical with component units, is made up of 2 slip hydraulic cylinders that are arranged symmetrically with, slips housing, oil inlet and outlet hydraulic quick coupler, 1 cover bidirectional hydraulic lock, slips supporting mass and slip dog; The oil circuit control of described slip hydraulic cylinder is all built in slips housing, slip hydraulic cylinder body and slip hydraulic cylinder front and rear cover, and sealing ring has been installed to prevent hydraulic fluid leak by bonding surface place, and described bidirectional hydraulic lock is arranged on slips housing; Described slips supporting mass and slip dog, for being used in conjunction with in pairs, can move and carry out folding in housing;
Described difference of moving about hydraulic pressure pipe slips and fixed hydraulic slips is, the installation site of the described hydraulic pressure pipe slips that moves about is on described lifting hydraulic cylinder top, the installation site of described fixed hydraulic slips is in described lifting hydraulic cylinder bottom, on the top of described hydraulic base support unit;
The lifting of hydraulic pressure lifting device, decline, stop to control by operated from a distance hand-operated direction valve, rapid operation is simple.The bidirectional hydraulic lock of configuration can be realized the pressurize of lifting halted state and prevent when hydraulic cylinder with loading is descending out of controlly, ensures its smooth working.The opening, block, stop of hydraulic pressure pipe slips also can be controlled by operated from a distance hand-operated direction valve, and rapid operation is simple.The bidirectional hydraulic lock of configuration can be realized pressurize, can prevent that hydraulic pressure pipe slips from, because of decompression pine card, ensureing its trouble free service.
Described hydraulic base support unit is mainly stretched out with the oil circuit control of retracting, 1 oil inlet and outlet integrated valve block containing bidirectional hydraulic lock and is formed after connecting mutually with oil inlet and outlet hydraulic quick coupler by 4 supporting cylinders, 4 spiral support footing, 1 block of support and connection plate, 1 group of support piston bar; Described hydraulic base support unit can be by controlling the flexible height of adjusting support of supporting cylinder, thereby can share the excessive load while promoting oil pipe.The support footing of hydraulic base support unit stretches out and the adjusting of retracting is also controlled by operated from a distance hand-operated direction valve, the bidirectional hydraulic lock of configuration can be realized the pressurize of support oil cylinder, can prevent that hydraulic leg from relaxing one's efforts, ensure the trouble free service of device unfreezing process.
Hydraulic actuating mechanism erection sequence is from bottom to up first stable hydraulic base support unit, then the lower plane of fixed hydraulic slips is docked and put in place with supporting the upper plane of gusset piece, fixes by Bolt Connection; The upper plane of fixed hydraulic slips engages with the cylinder bottom flange of 2 lifting hydraulic cylinders, and is screwed connection; The piston rod upper flange of lifting hydraulic cylinder engages with the lower plane of the hydraulic pressure pipe slips that moves about, and is screwed connection; So far, hydraulic actuating mechanism becomes an independently mechanism body.
Below, in conjunction with Figure of description, each ingredient is elaborated:
Fig. 1 is the structure general assembly drawing of hydraulic actuating mechanism, and Fig. 2 is the cross-sectional view of Fig. 1.As shown in the figure, hydraulic actuating mechanism mainly comprises the hydraulic pressure pipe slips 1 that moves about, lifting hydraulic cylinder 2, fixed hydraulic slips 3 and hydraulic auxiliary support unit 4.Hydraulic pressure pipe slips 1 base plane of moving about is connected as one by the first soket head cap screw 6 and the upper flange of lifting hydraulic cylinder 2; The lower flange of lifting hydraulic cylinder 2 is connected as one by the second soket head cap screw 7 and the upper plane of fixed hydraulic slips 3; The lower plane of fixed hydraulic slips 3 is connected as one by plane on the support and connection plate of the 3rd soket head cap screw 8 and hydraulic auxiliary support unit 4; So far executing agency is installed as one, lifts and movement as an individual components.
The basic structure of hydraulic pressure pipe slips 1 and fixed hydraulic slips 3 of moving about is identical with component units, is referred to as hydraulic pressure pipe slips.Fig. 3, Fig. 4 and Fig. 5 have formed the assembling drawing of described hydraulic pressure pipe slips, mainly comprise 2 slip hydraulic cylinders 14 that are arranged symmetrically with, slips housing, the 1 pair of slips supporting mass 17 and slip dog 18, bidirectional hydraulic lock 19, oil inlet and outlet 10, the first joint bolts 20, the second joint bolt 21, the 3rd connection screw 22 and sealing ring 23.Wherein, the both ends surface engagement of the forward flange of slip hydraulic cylinder 14 and slips housing 15, the sealing ring 23 of O shape rubber is installed at the hydraulic oil channel place between bonding surface, is connected and fixed and is integrated by the second joint bolt 21 of interior hexagonal; The periphery of slip dog 18 coordinates with the inner headed face of slips supporting mass 17, and is connected and fixed and is integrated by the first connection screw 20 of interior hexagonal; The T-shaped groove of slips supporting mass 17 coordinates installation with the T-shaped termination of the piston rod front portion of slip hydraulic cylinder 14, ensures axial connecting relation.Bidirectional hydraulic lock 19 connects screw 22 by the 3rd of interior hexagonal and is arranged on the position, middle and upper part above of slips housing 15, and connects oil inlet and outlet 10.
The difference of hydraulic pressure pipe slips 1 and fixed hydraulic slips 3 of moving about is to move about the installation site of hydraulic pressure pipe slips 1 on lifting hydraulic cylinder 2 tops, and the bottom of the hydraulic pressure pipe slips housing 15 that moves about has the corresponding first the first screw hole 95 connecting in the upper flange 96 of screwed hole 30 and lifting hydraulic cylinder 2 to connect; Fixed hydraulic slips 3 installation sites are in lifting hydraulic cylinder 2 bottoms, on the top of hydraulic auxiliary support unit 4, the top of fixed hydraulic slips housing 16 has the second screw hole 100 in the second connection screwed hole 33 of correspondence and the lower flange 99 of lifting hydraulic cylinder 2 to connect; The bottom of fixed hydraulic slips housing 16 has the 3rd screw hole 109 on the support and connection plate 103 of corresponding connection screwed hole 34 and hydraulic auxiliary support unit 4 to connect.
Fig. 6, Fig. 7 and Fig. 8 are respectively the structure charts of three different visual angles of hydraulic pressure pipe slips housing 15 of moving about, there is the hydraulic lock screwed hole 24 that bidirectional hydraulic lock 19 is installed the front portion of slips housing 15, there is respectively the hydraulic cylinder screwed hole 27 that slips hydraulic cylinder 14 is installed at two ends, left and right, and the first screwed hole 30 connecting with the upper flange 96 of lifting hydraulic cylinder 2 is arranged at bottom.In the anterior entity of slips housing 15, design the turnover of slip hydraulic cylinder 14, oily vertical passage 25,26, turnover, oily interconnection 28,29, wherein passage 25 is communicated with passage 28, and passage 26 is communicated with passage 29; In addition, be provided with the isodiametric centre bore 31 that communicates up and down, ensure that tubing string passes through smoothly; Be provided with the communicate rectangular opening 32 of uniform section size of left and right, for slips supporting mass 17 is installed, and can ensure that slips body 17 is with slip dog 18 to carry out smoothly switch motion.
Fig. 9,10,11 is respectively the structure chart of three different visual angles of fixed hydraulic slips housing 16.Fundamental is identical with the structure of the hydraulic pressure pipe slips housing that moves about, and difference is that the screwed hole connecting with the lower flange of lifting hydraulic cylinder is arranged at the top of slips housing, and bottom has and the screwed hole of assisting the support and connection plate upper surface of supporter to connect.
Figure 12,13,14 has formed the assembling drawing of slip hydraulic cylinder 14.Slip hydraulic cylinder mainly comprises piston rod 35, front end housing flange 36, hydraulic cylinder body 37, piston 38, locking nut 39,41,8 front end housing flange attachment screws 42 of 40,8 back cylinder cover flange attachment screws of back cylinder cover flange, oil inlet and outlet sealing ring 50 on dust-proof seal ring 43, piston rod packing circle 44, front end housing flange seal ring 45,46,2 piston dynamic seal rings 47 of piston static sealing ring, piston guide cover 48,49 and 2 cylinder bodies of back cylinder cover flange seal ring.Wherein, the piston static sealing ring 46 of O shape is housed between piston rod 35 rear end external cylindrical surfaces and the inner cylinder face of piston 38, piston 38 connects as one by locking nut 39 and the rear end of piston rod 35.The front end housing flange seal ring of O shape is housed between the inner cylinder face of the external cylindrical surface of front end housing flange 36 and cylinder body 37; Dust-proof seal ring 43 and pressure bearing and seal circle 44 are housed between the external cylindrical surface of the inner cylinder face of front end housing flange 36 and piston rod 35; The rear end face of front end housing flange 36 coordinates with cylinder body end face, and there is oil inlet and outlet sealing ring on cylinder body at the oil inlet and outlet place of cylinder body; Front end housing flange 36 connects as one by attachment screw 42 and the front end of cylinder body 37.O shape back cylinder cover flange seal ring 49 is housed between the inner cylinder face of the external cylindrical surface of back cylinder cover flange 40 and cylinder body 37; The front end face of back cylinder cover flange 40 coordinates with cylinder body end face, and there is oil inlet and outlet sealing ring on cylinder body at the oil inlet and outlet place of cylinder body; Back cylinder cover flange 40 connects as one by attachment screw 41 and the rear end of cylinder body 37.The external cylindrical surface of piston 38 has been installed 47 and 1 piston guide cover 48 of 2 pressure-bearing dynamic seal rings, ensures sealing and working life in piston movement process.On slip hydraulic cylinder 14, be also provided with and drive the asphalt channel 53 that slips closed clip is tight and the asphalt channel 52 that drives slips to open; Slip hydraulic cylinder 14 connects with the end face of slips housing by bolt hole 51.The slip hydraulic cylinder 14 front end T shape by piston rod 35 54 coordinates realization to be axially connected with the T-shaped groove of slips supporting mass 17.
Figure 15,16 and 17 has formed the structure chart of three different visual angles of the front end housing flange 36 of slip hydraulic cylinder.Three endoporus 56,58,59 compositions connect slips and close the passage of oil circuit, and have mounting groove 57, are mounting O-shaped rubber seal 23, dispose fabrication hole end plug 55; Three endoporus 60,61 are connected slips with 63 compositions and open the passage of oil circuit, and are this channel setting O type rubber seal mounting groove 62 and are fabrication hole end plug 64.For slip hydraulic cylinder 14 and slips housing are connected as a single entity, have 8 by the soket head cap screw hole 65 of circumference uniform distribution, in addition, for drive end bearing bracket 36 and cylinder body 37 are connected as a single entity, also have 8 soket head cap screw holes 66, also press circumference uniform distribution.In addition, as shown in the figure, also on drive end bearing bracket 36, have the sealing ring mounting groove 67 with cylinder body 37 inner peripheral surface 79 fitted seal; Label 68 is the mounting groove of the Yx type rubber seal 44 of drive end bearing bracket and piston rod 35 fitted seal; Label 69 is the mounting groove of the L-type dust-proof seal ring 43 of drive end bearing bracket and piston rod 35 fitted seal.
Figure 18 and Figure 19 have formed the structure chart of three different visual angles of the back cylinder cover flange 40 of slip hydraulic cylinder.Three endoporus 71,72 and 73 compositions are connected slips closes the passage of oil circuit, is provided with the fabrication hole end plug 70 of this structure; For rear end cap 40 and cylinder body 37 are connected as a single entity, have this soket head cap screw hole, unit 74, totally 8, by circumference uniform distribution; And have as rear end cap 40 and the mounting groove 75 of the O type rubber seal 49 of cylinder body 37 inner peripheral surface 79 fitted seal.
It shown in Figure 20 and Figure 21, is the structure chart of two different visual angles of the cylinder body 37 of slip hydraulic cylinder 14.Wherein first, second counterbore 76,81 is respectively used to install the oil circuit sealing rings 50 that end face coordinates; First passage 78 is closed the passage of oil circuit for connecting slips; Inner peripheral surface 79, for coordinating with front end housing flange 36, piston 38, back cylinder cover flange 40, forms the hydraulic working oil chamber of sealing.The screwed hole of screwed hole 77 for cylinder body 37 and back cylinder cover flange 40 are connected as a single entity, totally 8, by circumference uniform distribution; The screwed hole of screwed hole 80 for cylinder body 37 and front end housing flange 36 are connected as a single entity, totally 8, by circumference uniform distribution.
It shown in Figure 22,23,24, is the structure chart of 17 3 different visual angles of slips supporting mass, it shown in Figure 25,26, is the structure chart of 18 3 different visual angles of slip dog, slips supporting mass and slip dog use in pairs, be arranged symmetrically with, move simultaneously and work in slips housing.2 U-shaped spaces on slips supporting mass 82,83 composition T-slot structures, for matching with piston rod 35 front end T shape heads 54, realize axial connection by slips supporting mass 17 with hydraulic cylinder piston rod 35, and keep radially unsteady.Inner headed face 85 on slips supporting mass 17 coordinates with the periphery 92 of slip dog 18 to realize installs location; Inner headed face 87 on slips supporting mass 17 coordinates and realizes auxiliary positioning with the periphery 91 of slip dog 18; Step surface 86 on slips supporting mass 17 coordinates with the step surface 93 of slip dog 18 realizes carrying location; Soket head cap screw 20 is realized location with the soket head cap screw hole 94 on slip dog 18 by slip dog 18 and slips supporting mass 17 by the screwed hole 84 on slips supporting mass 17 and is coordinated, and keeps the reliability of step surface carrying.The effect of 2 chamfer sites 88,89 on slips supporting mass 17 is that the motion reducing in slips moving process hinders.Slip insert 90 is slip inserts of slip dog 18, and its thread form can be guaranteed under 500kN load, tubing string to be clamped and is raised.
It shown in Figure 27,28,29,30, is the outline drawing that lifting hydraulic cylinder 2 is seen from four visual angles.The internal construction of lifting hydraulic cylinder manufactures and designs according to engineering hydraulic cylinder series, and external connection structure and size need to meet the installation requirement of assisting unfreezing executing agency globality, 2 lifting hydraulic cylinder synchronous workings in parallel.The upper flange 96 of lifting hydraulic cylinder coordinates connection by soket head cap screw hole 95 with the soffit of the hydraulic pressure pipe slips 1 that moves about; The lower flange 99 of lifting hydraulic cylinder 2 coordinates connection by soket head cap screw hole 100 with the upper surface of fixed hydraulic slips 3; Oil inlet and outlet 97 is the oil inlet and outlets of descent of piston that drive lifting hydraulic cylinder 2, extends to bottom from top with pipeline, be in order to make hydraulic circuit pipeline compactness, be convenient to integrated; Oil inlet and outlet 98 is the oil inlet and outlets that drive the piston stroking upward of lifting hydraulic cylinder 2; 2 lifting hydraulic cylinders require synchronous workings, so the oil inlet and outlet 11 after the oil inlet and outlet of 2 lifting hydraulic cylinders also needs to conflux by integrated valve block is connected with remote pipeline.
Figure 31,32 and 33 has formed the assembling drawing of hydraulic auxiliary support unit 4.Hydraulic auxiliary support unit 4 mainly comprises 4 supporting cylinders 101 as shown in the figure, 4 spiral support footing 102,1 block of support and connection plate 103, support piston bar stretches out control chamber oil circuit 104, support piston bar retraction control chamber oil circuit 105,1 oil inlet and outlet integrated valve block 106,4 cover supporting cylinder joint bolt 107,1 cover integrated valve block joint bolt 108 containing bidirectional hydraulic lock forms.Soket head cap screw hole 109 on support and connection plate 103 is for being connected as one the bottom surface of fixed hydraulic slips 3 by soket head cap screw 8 and hydraulic auxiliary support unit 4; M30 screwed hole 111 on support and connection plate 103 is for being connected whole release device executing agency locate with the upper flange of the well head four-way 5 for the treatment of operation by 4 M30 studs 9; Centre bore 110 on support and connection plate 103 is tubing string passages.
Shown in Figure 34, be hydraulic system structure layout, hydraulic system is made up of hydraulic power source system 114, hydraulic control system 113 and bedframe 112.The building block of hydraulic power source system 114 and hydraulic control system 113 are all fixed on skid-mounted type bedframe 112, are convenient to integral hoisting and movement.Hydraulic power source system 114 comprises Diesel engine 115, diesel tank 116, hydraulic oil container 117, shaft coupling 118, hydraulic pump suction line 119, sucks ball valve 120, hydraulic pump 121, one way valve 122, hydraulic pump outlet manifold 123, pressure oil strainer 124, accumulator 125, accumulator switch valve 126, return filter 127, hydraulic valve block 128, overflow valve 129, air filter 130, hydraulic system pressure oil export pipeline 131, hydraulic system oil return pipeline 132.Diesel engine 115 is coaxially connected with hydraulic pump 121 by shaft coupling 118, and is stabilized on seat frame frame 112; Diesel tank 116 stores enough diesel oil to ensure Diesel Driven hydraulic pump output hydraulic pressure power; Hydraulic oil container 117 storage liquid force feeds ensure hydraulic system periodic duty, and return filter 127, air filter 130, hydraulic valve block 128 and overflow valve 129 have been installed on it; Hydraulic pump suction line 119 is connected with the built-in oil absorption filter of hydraulic oil container 117 bottoms, then is connected with suction ball valve 120, is hydraulic pump 121 intake fuel feeding; Hydraulic pump 121 exports manifold and comprises high-voltage tube, elbow, threeway, is connected respectively to accumulator 125 and hydraulic valve block 128 through one way valve 122, pressure oil strainer 124, accumulator switch valve 126, ensures that the hydraulic oil that hydraulic pump 121 is exported arrives overflow valve 129.Hydraulic valve block 128 connects and composes hydraulic circuit by hydraulic system pressure oil export pipeline 131, hydraulic system oil return pipeline 132 with pressure oil input port 143, the low pressure oil return opening 144 of hydraulic control system 113 respectively.
Shown in Figure 35,36, be hydraulic control system 113 topology layout figure.Hydraulic control system 113 comprises hydraulic pressure indicator 133, lifting force digital display meter 134, power switch 135, Diesel Engine Control dial plate 136, pressure reducing circuit pressure meter 137, reducing valve remote adjustment handle 138, support unit control valve 139, lifting hydraulic cylinder control valve 140, fixed hydraulic slips control valve 141, hydraulic pressure pipe slips control valve 142 moves about, pressure oil input port 143, low pressure oil return opening 144, integrated valve block 145, reducing valve 146, pressure sensor 147, battery 148, hydraulic pressure pipe slips oil inlet and outlet 149 moves about, fixed hydraulic slips oil inlet and outlet 150, lifting hydraulic cylinder oil inlet and outlet 151, support unit oil inlet and outlet 152, control casing 153.Hydraulic control system is fixed on skid-mounted type bedframe 112 by controlling casing 153.Hydraulic pressure indicator 133, lifting force digital display meter 134, power switch 135, Diesel Engine Control dial plate 136, pressure reducing circuit pressure meter 137, reducing valve remote adjustment handle 138 are installed in the upper panel of controlling casing 153, are convenient to show and observe; Support unit control valve 139, lifting hydraulic cylinder control valve 140, fixed hydraulic slips control valve 141, the hydraulic pressure pipe slips control valve 142 that moves about are installed on integrated valve block 145, and enough manual operation spaces are left in its operating grip upper end outside control casing 153 upper panel; Pressure oil input port 143 is connected with the pressure oil export pipeline 131 of hydraulic power source system 114, low pressure oil return opening 144 is connected with the oil return pipeline 132 of hydraulic power source system 114; The hydraulic pressure pipe slips oil inlet and outlet 149 that moves about is connected with the hydraulic pressure pipe slips oil inlet and outlet 10 that moves about of hydraulic actuating mechanism by high-pressure rubber pipe, fixed hydraulic slips oil inlet and outlet 150 by high-pressure rubber pipe be connected with the fixed hydraulic slips oil inlet and outlet 12 of hydraulic actuating mechanism, lifting hydraulic cylinder oil inlet and outlet 151 by high-pressure rubber pipe be connected with the lifting hydraulic cylinder oil inlet and outlet 11 of hydraulic actuating mechanism, supplemental support unit oil inlet and outlet 152 is connected with the supplemental support unit oil inlet and outlet 13 of hydraulic actuating mechanism by high-pressure rubber pipe.
It shown in Figure 37, is the hydraulic system principle figure of remotely controlled operation machine auxiliary jam release device.In figure, represented the oil circuit relation of each Hydraulic Elements, hydraulic control unit in device, in figure, element sequence number represents the Hydraulic Elements and the unit that are distributed in the same sequence number in aforesaid each structure chart.According to hydraulic system principle figure, can illustrate annexation and the operating principle of remotely controlled operation machine auxiliary jam release device.
Annexation of the present invention illustrates in above-mentioned figure, the following describes operating principle of the present invention:
Receive after unfreezing task, be equipped with crane and oil field lorry, with oil field charge of trucks skid-mounted type release device hydraulic system, release device hydraulic actuating mechanism and 2 high strength tubing short circuits that 2m is long, be transported to work well location.According to well site condition, skid-mounted type release device hydraulic system is placed within the scope of well head 10m ~ 15m, thereby ensures the length requirement of remote-operated safe distance and hydraulic line; The hydraulic actuating mechanism being connected as one is lifted on the wellhead flange that needs operation with crane again, leveling, align, and together with the support and connection plate lower plane of hydraulic auxiliary support unit being connected and fixed with well head four-way 5 with nut by the studs of M30, thereby ensure stability when work.
After hydraulic system and executing agency are all in place, connect remote power transmission and the hydraulic quick coupler of controlling hydralic hose, totally 8 sebific ducts, 16 cover hydraulic quick couplers.First the hydralic hose that connects the hydraulic pressure pipe slips that moves about, hydraulic control system one end connects oil inlet and outlet 149, and executing agency one end connects oil inlet and outlet 10; Then, be connected and fixed the hydralic hose of hydraulic pressure pipe slips 3, hydraulic control system one end connects oil inlet and outlet 150, and executing agency one end connects oil inlet and outlet 12; Then, connect the hydralic hose of lifting hydraulic cylinder 2, hydraulic control system one end connects oil inlet and outlet 151, and executing agency one end connects oil inlet and outlet 11; Finally, connect the hydralic hose of supplemental support unit 4, hydraulic control system one end connects oil inlet and outlet 152, and executing agency one end connects oil inlet and outlet 13.After high-pressure rubber pipe is connected and is put in place, re-recognize true inspection joint whether connect completely put in place, positiver sealing, thereby complete the preparation of the preoperative wellhead equipment of tubing string unfreezing.
After above-mentioned workflow completes, start diesel engine-oil pump unit, low pressure operation hydraulic system, checks whether each Displaying Meter normally works; Operation control valve handle check and correction hydraulic line connects whether meet operational procedure completely; If you have questions, shut down and adjust; Check, proofread complete, after all are normal, set hydraulic system working pressure, regulate and set pressure reducing circuit output pressure, release device hydraulic system enters duty.
The unfreezing course of work must strictly be carried out in operation sequence: first determine that lifting hydraulic cylinder 2 pistons are in stroke lower position, the operation hydraulic pressure pipe slips control valve 142 closed clamping of the hydraulic pressure pipe slips oil pipe that makes to move about that moves about, operation fixed hydraulic slips control valve 141 is opened fixed hydraulic slips and can make oil pipe pass through smoothly; After stable, operation lifting hydraulic cylinder control valve 140 stretches out piston rod, the driving hydraulic pressure pipe slips 1 that moves about drives tubing string up, prescribe a time limit when walking on lifting hydraulic cylinder 2 strokes, operation lifting hydraulic cylinder control valve 140 makes piston stop motion and keeps, then operates fixed hydraulic slips control valve 141 and make the closed clamping of fixed hydraulic slips oil pipe; After stable, operation hydraulic pressure pipe slips control valve 142 hydraulic pressure pipe slips that makes to move about that moves about is opened, and can make oil pipe pass through smoothly, and now, the load of tubing string is born by fixed hydraulic slips 3; Operation lifting hydraulic cylinder control valve 140 is retracted piston rod, move about hydraulic pressure pipe slips 1 of driving is unloaded descending, prescribe a time limit when walking under lifting hydraulic cylinder 2 strokes, operation lifting hydraulic cylinder control valve 140 stops piston and keeps, then the operation hydraulic pressure pipe slips control valve 142 closed oil pipe that clamps of hydraulic pressure pipe slips that makes to move about that moves about; After stable, then operate fixed hydraulic slips control valve 141 and fixed hydraulic slips is opened and can be made oil pipe pass through smoothly; So far, complete an impulse stroke.Lifting hydraulic cylinder 2 and hydraulic pressure pipe slips 1, the fixed hydraulic slips 3 program cooperating in accordance with regulations that moves about, through switching of lifting hydraulic cylinder 2 several reciprocating strokes, realize the substep lifting of tubing string, thereby can will from well, be enhanced by card tubing string, until final unfreezing completes.
Claims (2)
1. the remotely controlled operation machine auxiliary jam release device for oil-water well well workover, formed by hydraulic actuating mechanism, hydraulic power source system and hydraulic control system, between hydraulic actuating mechanism and wellhead casing pipe flange or big four, be fixedly connected with bolt, described hydraulic power source system is connected with hydraulic actuating mechanism by high-pressure hose at a distance with hydraulic control system, to realize the transmission of Long-distance Control and hydraulic power; Wherein, described hydraulic actuating mechanism is mainly made up of hydraulic hoist cylinder, the hydraulic pressure pipe slips that moves about, fixed hydraulic slips and hydraulic base support unit; Described hydraulic power source system adopts Diesel Driven hydraulic pump to realize, system mainly forms by being assembled in safety valve, fuel tank, strainer, accumulator, switch valve and a pressure meter on skid-mounted type base, provides required hydraulic power supply to be embodied as described hydraulic actuating mechanism; Described hydraulic control system is made up of some remote pressure regulating valve, hand-operated direction valve, reducing valve, pressure sensor, synchronous valve and bidirectional hydraulic locks etc. that are arranged on hydraulic manifold block and carry out on hydraulic cylinder, to realize the control to described device.
2. a kind of remotely controlled operation machine auxiliary jam release device for oil-water well well workover according to claim 1, is characterized in that:
Described hydraulic hoist cylinder is arranged symmetrically with and is formed by 2 lifting hydraulic cylinders, and synchronous working; Described hydraulic pressure pipe slips and the fixed hydraulic slips of moving about matches with described 2 lifting hydraulic cylinders, to realize the function that stuck pipe post is proposed from well;
The basic structure of described move about hydraulic pressure pipe slips and fixed hydraulic slips is identical with component units, is made up of 2 slip hydraulic cylinders that are arranged symmetrically with, slips housing, oil inlet and outlet hydraulic quick coupler, 1 cover bidirectional hydraulic lock, slips supporting mass and slip dog; The oil circuit control of described slip hydraulic cylinder is all built in slips housing, slip hydraulic cylinder body and slip hydraulic cylinder front and rear cover, and sealing ring has been installed to prevent hydraulic fluid leak by bonding surface place, and described bidirectional hydraulic lock is arranged on slips housing; Described slips supporting mass and slip dog, for being used in conjunction with in pairs, can move and carry out folding in housing;
Described difference of moving about hydraulic pressure pipe slips and fixed hydraulic slips is, the installation site of the described hydraulic pressure pipe slips that moves about is on described lifting hydraulic cylinder top, the installation site of described fixed hydraulic slips is in described lifting hydraulic cylinder bottom, on the top of described hydraulic base support unit;
Described hydraulic base support unit is mainly stretched out with the oil circuit control of retracting, 1 oil inlet and outlet integrated valve block containing bidirectional hydraulic lock and is formed after connecting mutually with oil inlet and outlet hydraulic quick coupler by 4 supporting cylinders, 4 spiral support footing, 1 block of support and connection plate, 1 group of support piston bar; Described hydraulic base support unit can be by controlling the flexible height of adjusting support of supporting cylinder, thereby can share the excessive load while promoting oil pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410101040.5A CN103867156A (en) | 2014-03-19 | 2014-03-19 | Remote control operation machine-assisted releasing device used for oil-water well repair |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410101040.5A CN103867156A (en) | 2014-03-19 | 2014-03-19 | Remote control operation machine-assisted releasing device used for oil-water well repair |
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| CN103867156A true CN103867156A (en) | 2014-06-18 |
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Application publication date: 20140618 |