CN214886913U - Independent gas well under-pressure operation machine - Google Patents
Independent gas well under-pressure operation machine Download PDFInfo
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- CN214886913U CN214886913U CN202121304935.0U CN202121304935U CN214886913U CN 214886913 U CN214886913 U CN 214886913U CN 202121304935 U CN202121304935 U CN 202121304935U CN 214886913 U CN214886913 U CN 214886913U
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Abstract
The utility model discloses an operating machine is pressed in independent type gas well area, including whole frame part, lift and push down system, annular space sealing system, well control safety part and mast winch system, whole frame part is fixed subaerial, and its middle part fixed well control safety part, and annular space sealing system is fixed in the sealed upper end of well control safety part, the fixed system that pushes down that lifts in annular space sealing system upper end, lifts and pushes down the fixed mast winch system in system top, mast winch system one side is equipped with the hydraulic tong davit, and hydraulic tong davit lower part is connected in last work platform; the upper working platform is fixed on the outer side of the lifting and pressing system, the middle platform is fixed on the outer side of the annular sealing system, and the lower platform is fixed on the outer side of the well control safety part. Simple and practical operation, low height, convenient installation and transportation and high operation efficiency.
Description
Technical Field
The utility model belongs to the technical field of the operation equipment is pressed in the oil field area, concretely relates to stand alone type gas well area presses workover rig.
Background
The gas well under-pressure operation technology is a new technology which can improve the oil gas yield, reduce the pollutant discharge and simultaneously reduce the comprehensive operation cost, and the gas well under-pressure operation application technology is an urgent technology for shale gas, compact oil gas well completion and low-pressure deep well old well maintenance and production recovery in China. However, since the requirement of the operation under pressure on the safety and reliability of the equipment is extremely strict, at present, domestic operation equipment under pressure for high-pressure gas wells almost entirely depends on import. Along with the development of the exploration and development situation of the natural gas in China, the homemade equipment for operation under pressure has great significance to the oil and gas industry, the homemade equipment can obviously reduce the equipment purchase cost of service companies, the equipment more accords with the existing level of workers in China in operation, use and maintenance, and the price of technical service is further reduced, so that the popularization and application of the technology for operation under pressure in the oil and gas field in China are promoted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an operation machine is pressed to stand alone type gas well has overcome the above-mentioned not enough of prior art, and it has characteristics such as easy operation is practical, highly low, installation transportation convenience, operating efficiency height, satisfies market user demand, is favorable to the product popularization.
In order to achieve the above design purpose, the utility model discloses a technical scheme as follows:
an independent gas well under-pressure operation machine comprises an entire machine frame part, a lifting and pressing system, an annular sealing system, a well control safety part and a mast winch system, wherein the entire machine frame part plays a role in supporting and stabilizing the entire operation machine, the lower supporting seat part of the entire machine frame part is fixed on the ground, the well control safety part is fixed in the middle of the entire machine frame part, the annular sealing system is sealed and fixed at the upper end of the well control safety part and mainly used for controlling annular pressure, the lifting and pressing system is fixed at the upper end of the annular sealing system, the mast winch system is fixed at the top end of the lifting and pressing system and used for pulling a single oil pipe or a tool or hanging a water hose or a hanging water hose and an under-pressure operation faucet, a hydraulic clamp suspension arm is arranged on one side of the mast winch system, and the lower part of the hydraulic clamp suspension arm is connected to one side of an upper working platform through a flange; the upper working platform is fixed on the outer side of the lifting and pressing system, the middle platform is fixed on the outer side of the annular sealing system, and the lower platform is fixed on the outer side of the well control safety part.
The complete machine frame part mainly comprises a lower platform, manual lifting supporting legs, a rotating arm, a middle platform, four-column frames and an upper working platform, wherein the rotating arm is arranged on the periphery of the lower platform respectively, the manual lifting supporting legs are fixed at the tail ends of the rotating arm and used for supporting the lower platform, and the four-column frames are four stand columns with flanges at two ends and connected with the four corners of the upper working platform and the middle platform through flanges.
The whole machine frame part also comprises an escape sliding rod, and the escape sliding rod is hung on the upper operating platform.
The lifting and pressing system mainly comprises double lifting oil cylinders, a 120t top-proof bearing slip set, a 120t moving top-proof slip, a double-motor driving turntable and a 120t moving bearing slip, wherein the lower end of the moving bearing slip is connected with the double-motor driving turntable, the lower side of the double-motor driving turntable is connected with the 120t moving top-proof slip, the lower side of the 120t moving top-proof slip is provided with the 120t top-proof bearing slip set, the double-motor driving turntable is fixed on the upper portion of a piston rod of the double lifting oil cylinders, and the upper portions of the double lifting oil cylinders are installed on an upper operating platform.
The middle part of the double-motor driving turntable is provided with a rotating body, the upper part of the rotating body is connected with a 120t swimming bearing slip, and the lower part of the rotating body is connected with a 120t swimming anti-jacking slip.
The annular sealing system mainly comprises an FZ18-70K lower working blowout preventer, a balanced pressure relief four-way joint, an FZ18-70K upper working blowout preventer, a middle platform transition flange, an FH18-35 annular blowout preventer and an annular buffer blowout preventer, wherein the lower end of the FH18-35 annular blowout preventer is hermetically fixed at the lower end of a 120t top-prevention bearing slip group, the lower end of the FH18-35 annular blowout preventer is hermetically connected with the FZ18-70K upper working blowout preventer through the middle platform transition flange, the lower end of the FZ18-70K upper working blowout preventer is hermetically connected with the balanced pressure relief four-way joint, the lower end of the balanced pressure relief four-way joint is hermetically connected with the FZ18-70K lower working blowout preventer through a flange, and the annular buffer blowout preventer is fixed on a double-lifting oil cylinder.
The well control safety part mainly comprises an FZ18-70JQ shearing blowout preventer, a 2FZ18-70 double-ram blowout preventer, a lower platform transition flange, a pressure release cross joint and an FZ18-70 single-ram blowout preventer, wherein the FZ18-70 single-ram blowout preventer is fixed at the lower end of a working blowout preventer under the FZ18-70K in a sealing mode, the lower end of the FZ18-70 single-ram blowout preventer is connected with the pressure release cross joint in a sealing mode, the pressure release cross joint is connected to the upper side of a lower platform in a sealing mode through the lower platform transition flange and a connecting bolt group, the lower side of the lower platform is connected to the 2FZ18-70 double-ram blowout preventer in a sealing mode through the lower platform transition flange and the connecting bolt group, the lower end of the 2FZ18-70 double-ram blowout preventer is connected with the FZ18-70JQ shearing blowout preventer in a sealing mode, and the FZ18-70JQ shearing blowout preventer is connected to a wellhead cross joint in a sealing mode.
The independent gas well under-pressure operation machine further comprises an operation control system, the operation control system mainly comprises an operation table, an auxiliary operation table and a lifting oil cylinder control valve group, the lifting control valve group is installed on the middle platform and connected to an oil cylinder and the operation table through hydraulic pipelines, and the operation table and the auxiliary operation table are installed on the upper working platform.
Stand alone type gas well area operation machine's beneficial effect be: the novel multifunctional combined type oil pumping unit has the characteristics of simplicity and practicality in operation, low height, convenience in installation and transportation, high operation efficiency and the like, meets the market using requirements, and is favorable for product popularization.
Drawings
Fig. 1 is a perspective view of a stand-alone gas well operation machine under pressure according to the present invention;
fig. 2 is another perspective view of the stand-alone gas well operation machine with pressure according to the present invention;
fig. 3 is a schematic diagram of the independent gas well under-pressure operation machine of the present invention.
In the figure:
1-wellhead four-way, 2-FZ18-70JQ shearing blowout preventers, 3-manual lifting support legs, 4-2FZ18-70 double-ram blowout preventers, 5-pressure release four-way, 6-FZ18-70 single-ram blowout preventers, 7-FZ18-70K lower working blowout preventers, 8-double lifting oil cylinders, 9-balance pressure release four-way, 10-FZ18-70K upper working blowout preventers, 11-FH18-35 annular blowout preventers, 12-annular buffer blowout preventers, 13-120t anti-jacking bearing slip sets, 14-escape sliding rods, 15-120 traveling anti-jacking slips, 16-upper working platform, 17-double-motor driving rotary tables, 18-120t traveling bearing slip, 19-mast winch system, 20-hydraulic tong booms, 21-auxiliary operation tables, 22-an operation table, 23-a four-column frame, 24-a lifting cylinder control valve group, 25-a middle platform, 26-a middle platform transition flange, 27-a lower platform transition flange, 28-a lower platform, 29-a rotating arm and 30-a connecting bolt group.
Detailed Description
As shown in fig. 1-3, in the embodiment of the present invention, the independent gas well under-pressure working machine comprises an entire machine frame part, a lifting and pressing system, an annular sealing system, a well control safety part and a mast winch system, wherein the entire machine frame part has a supporting and stabilizing effect on the entire working machine and is divided into an upper frame part and a lower support part, the lower support part is fixed on the ground, and the well control safety part is fixed in the middle of the entire machine frame part and is used for preventing a wellhead from being out of control even when an upper working blowout preventer slip system fails, the annular sealing system is sealed and fixed at the upper end of the well control safety part and is mainly used for controlling annular pressure, the lifting and pressing system is fixed at the upper end of the annular sealing system, the mast winch system 19 is fixed at the top end of the lifting and pressing system, and the mast winch system 19 is used for pulling a single oil pipe or a tool, or a water hose and a tap for operation under pressure are suspended, a hydraulic clamp boom 20 is arranged at one side of the mast winch system 19, the lower part of the hydraulic clamp boom 20 is in flange connection, and the hydraulic clamp boom is arranged at one side of the upper working platform 16; the upper working platform 16 is fixed on the outer side of the lifting and pressing system, the middle platform 25 is fixed on the outer side of the annular sealing system, and the lower platform 28 is fixed on the outer side of the well control safety part.
The complete machine frame part mainly comprises a lower platform 28, manual lifting supporting legs 3, a rotating arm 29, a middle platform 25, four-column frames 23 and an upper working platform 16, wherein the rotating arm 29 is arranged on the periphery of the lower platform 28, the manual lifting supporting legs 3 are fixed at the tail ends of the rotating arm 29, the manual lifting supporting legs 3 are used for supporting the lower platform 28, the four-column frames 23 are four upright columns with flanges at two ends, and the four upright columns are connected with the four corners of the upper working platform 16 and the middle platform 25 through the flanges.
In specific implementation, four corners of the lower platform 28 are provided with central holes and flange screw-carrying holes, a sleeve with a flange is mounted on the upper portion of the lower platform, hollow pipe columns are welded on two sides of the four rotating arms 29, one side of each rotating arm penetrates through the sleeve on the lower platform 28 and is fixed by a pin after rotating to the position, the other side of each rotating arm penetrates through the sleeve of the manual lifting supporting leg 3 and is supported on the ground, the pins are used for fixing after the position is determined, and the lower screw rod is finely adjusted to be tightly attached to the ground.
In specific implementation, the upper working platform 16 is additionally provided with a turnable auxiliary platform on three sides, the auxiliary platform can be turned in during pulling and transporting to reduce the width, and the auxiliary platform can be turned over during working to enable the size of the platform to reach 3.5M multiplied by 2.6M, so that the operation is convenient; is provided with a 9-18 m telescopic cage ladder.
In specific implementation, the lower part of the four-column frame 23 is provided with telescopic support legs which are provided with support arms for supporting, expanding the supporting range, and the four-column frame can be always supported on the ground to reduce the pressure of a wellhead. Four guy ropes are pulled on the four-column frame 23 during operation.
In specific implementation, the whole machine frame part further comprises an escape sliding rod 14, and the escape sliding rod 14 is of a galvanized pipe plug-in type and is hung on an upper operation platform 16.
The lifting and pressing system mainly comprises a double lifting oil cylinder 8 (with the stroke of 3.5m), a 120t top-preventing bearing slip set 13, a 120t floating top-preventing slip 15, a double-motor driving rotary table 17 and a floating bearing slip 18, wherein the upper end of the floating bearing slip 18 is fixed at the lower end of a mast winch system 19 in a sealing mode, the lower end of the floating bearing slip 18 is connected with the double-motor driving rotary table 17 through a flange, the lower side of the double-motor driving rotary table 17 is connected with the 120t floating top-preventing slip 15 through a flange, the 120t top-preventing bearing slip set 13 is arranged at the lower side of the 120t floating top-preventing slip 15, the double-motor driving rotary table 17 is fixed at the upper part of a piston rod of the double lifting oil cylinder 8, and the upper part of the double lifting oil cylinder 8 is installed on an upper operation platform 16 through a flange.
The middle part of the double-motor driving turntable 17 is a rotating body, the upper part of the rotating body is connected with a floating bearing slip 18 through a flange, and the lower part of the rotating body is connected with a 120t floating anti-jacking slip 15 through a flange.
The maximum lifting force of the double lifting oil cylinders 8 reaches 105t, the down pressure reaches 54t, and the double-motor driving turntable 17 is connected with a gear through a hydraulic motor to drive the rotating body to rotate.
The annular sealing system mainly comprises an FZ18-70K lower working blowout preventer 7, a balanced pressure relief cross joint 9 (two sides of each of which are connected with a 52-70 manual plug valve and a 52-70 hydraulic plug valve), an FZ18-70K upper working blowout preventer 10, a middle platform transition flange 26, an FH18-35 annular blowout preventer 11 and an annular buffer blowout preventer 12, wherein the FH18-35 annular blowout preventer 11 is fixed at the lower end of a 120t jacking-proof bearing slip group 13, the lower end of the FH18-35 annular blowout preventer 11 is hermetically connected with the FZ18-70K upper working blowout preventer 10 through the middle platform transition flange 26, the lower end of the FZ18-70K upper working blowout preventer 10 is hermetically connected with the balanced pressure relief cross joint 9 through a flange, the lower end of the balanced pressure relief cross joint 9 is hermetically connected with the FZ18-70K lower working blowout preventer 7 through a flange, the annular buffer blowout preventer 12 is fixed on a double-lifting oil cylinder 8, the FH18-35 annular blowout preventer 11 is always closed in the process of running a pipe string, the FZ18-70K lower working blowout preventers 7 and the FZ18-70K upper working blowout preventers 10 are led out of a pipe column coupling through switch flashboards, the balance pressure relief four-way valve 9 is connected to a wellhead through valves at two sides, the other side of the balance pressure relief four-way valve is connected to a far-end filtering device and then ignited, the switch purpose of the valves at the two sides is to balance the upper and lower pressure of the upper and lower working blowout preventers, so that the switch is stable, and rubber parts are protected.
The well control safety part mainly comprises an FZ18-70JQ shearing blowout preventer 2, a 2FZ18-70 double-ram blowout preventer (upper slips and lower half seals) 4, a lower platform transition flange 27, a pressure release cross (2 groups of 52-70 manual plug valves are respectively arranged on two sides of the pressure release cross) 5 and an FZ18-70 single-ram blowout preventer (full seals) 6, wherein the FZ18-70 single-ram blowout preventer 6 is fixed at the lower end of a working blowout preventer 7 under the FZ18-70K through flange sealing, the lower end of the FZ18-70 single-ram blowout preventer 6 is connected with the pressure release cross 5 through flange sealing, the pressure release cross 5 is connected to the upper side of a lower platform 28 through the lower platform transition flange 27 and a connecting bolt group 30 in a sealing manner, the lower side of the lower platform 28 is connected to the 2FZ18-70 double-ram blowout preventer 4 through the lower platform transition flange 27 and the connecting bolt group 30 in a sealing manner, the lower end of the 2FZ18-70 double-ram blowout preventer 4 is connected with the FZ18-70JQ shearing blowout preventer through flange sealing manner, the FZ18-70JQ shearing blowout preventer 2 is connected to the four-way wellhead 1 in a sealing mode.
A lower working blowout preventer 7, a balance pressure relief cross joint 9, a lower working blowout preventer 10, an FH18-35 annular blowout preventer 11, a 120t top-preventing bearing slip group 13 and a connecting disc provided with a double-motor driving rotary disc 17 are sequentially arranged above an FZ18-70 fully-sealed blowout preventer 6, a 120 moving top-preventing slip 15 is arranged on the lower side of the connecting disc, a 120t moving bearing slip 18 is arranged on the upper side of the connecting disc, double lifting cylinders 8 are arranged on two sides of the connecting disc, a bearing flange of the double lifting cylinders 8 is connected with an upper working platform 16, an FZ18-70JQ shearing blowout preventer 2 and a 2FZ18-70 double-ram blowout preventer (upper slip and lower half-sealed) 4 are arranged below the lower platform from bottom to top, a pressure relief cross joint 5 (2 groups of 52-70 manual plug valves are respectively arranged on two sides) and an FZ18-70 single-ram blowout preventer 6 (fully-sealed) are arranged above a lower cross beam at one time: during the pressure operation, when the upper blowout preventers (the FZ18-70 single ram blowout preventer 6, the working blowout preventer 7 under the FZ18-70K, the working blowout preventer 10 on the FZ18-70K, and the FH18-35 annular blowout preventer 11) need to replace rubber pieces or meet high pressure, the half-closed rams in the 4-2FZ18-70 are closed in time to prevent the wellhead from being out of control. When the pressure operation is carried out, the blockage in the oil pipe fails, a large amount of oil, gas and water are sprayed out of the oil pipe, the ball valve cannot be installed in a robbing mode, in order to prevent the accident from expanding, the 2-FZ18-70JQ shearing blowout preventer can be closed quickly, the oil pipe is cut off and lifted, and the 6-FZ18-70 single-ram blowout preventer is closed to control a wellhead.
The independent gas well under-pressure operation machine further comprises an operation control system, the operation control system mainly comprises an operation table 22, an auxiliary operation table 21 and a lifting oil cylinder control valve group 24, the lifting control valve group 24 is installed on a middle platform 25 and connected to an oil cylinder and the operation table 22 through hydraulic pipelines, the operation table 22 and the auxiliary operation table 21 are formed by welding stainless steel plates and installed on an upper working platform 16, various control valves and pressure gauges are concentrated on a control table panel and used for controlling an executing mechanism of response, and the executing mechanism comprises a lifting pressing control system, an annular sealing control system and a mast winch control system.
The upper working platform 16 transmits the bearing force to the middle platform 25 and the lower platform 28 through four upright posts on the four-post frame 23, the middle part of the middle lower platform is connected with the blowout preventer stack through a platform transition flange in a sealing way, in order to prevent the weight of the whole set of device from bearing on a well head, an assembled rotating arm 29 is additionally arranged at the lower part of the lower platform, the manual lifting supporting leg 3 penetrates through a sleeve of the rotating arm at the far end, a pin is penetrated for fixing after the height is adjusted, an adjusting screw rod is arranged at the lower part of the manual lifting supporting leg 3, the height of the set of device can be adjusted in a micro mode, and therefore the whole weight of the device is transmitted to the ground and the balance of the whole set of device can be adjusted. The rotary supporting legs can be retracted in the transportation process, the overall dimension is reduced, and the transportation is convenient.
In order to enable the annular blowout preventer 11 to pass a coupling more easily, a pressure reduction overflow valve is specially arranged on an annular oil path, the oil pressure can be adjusted according to the well pressure, the oil pressure is not too large, the coupling can conveniently pass through the ball core, and the abrasion to the ball core is reduced. On the other hand, a 16L energy accumulator for buffering is arranged on the edge of the annular blowout preventer 11, when a coupling passes through the ball core, the ball core moves downwards, the piston moves downwards, the oil pressure is increased, and redundant oil pressure flows into the energy accumulator, so that the coupling can pass through the ball core more conveniently without damaging the ball core. By adopting the two measures, the operation under pressure can be better used and the operation efficiency can be improved.
The specific technical parameters are as follows:
1) the whole-course drift diameter phi of the main machine of the device operating under pressure is 186 mm;
2) rated working pressure: 70 MPa;
3) fixing and moving the slip set: bearing capacity: 120 t; and (3) resisting jacking force: 120 t;
4) stroke of the lifting oil cylinder: 3.5 m;
5) maximum lifting force: 102t (225Klbs) maximum downforce: 54t (120 Klbs);
6) the external dimension of the host device is as follows: length × width × height ═ 2300 × 2300 × 8500 mm;
7) total weight of the host device: 17.5 t;
8) the number of oil cylinders is as follows: 2 oil cylinder piston diameters: diameter of cylinder piston rod of phi 180 mm: phi 120 mm;
9) the mast winch has the main technical parameters as follows:
1. mast telescopic boom assembly:
1.1) rated bearing mass of mast: 1000Kg (single winch);
1.2) effective working height (taking the platform as a reference): more than or equal to 15m (with three-section telescopic function);
1.3) hydraulic winch motor displacement: 100 ml/r;
1.4) normal operation safety locking device: mechanical locking;
1.5) dead weight: less than or equal to 1500 Kg;
1.6) transport length in retracted state of the device: 7.6 m.
2. A hydraulic winch assembly:
2.1) the maximum single rope tension of the main winch is 1000 Kg; the maximum single rope tension of the auxiliary winch is 1000 Kg;
2.2) the rope capacity of the main and auxiliary winches is 60 m;
2.3) the maximum hoisting speed of the winch: 33 m/min;
10) maximum torque of the driving turntable: 8400 N.M; maximum rotation speed: 80 RPM;
11) the number of pipes can reach 35-50 when the working machine starts to work per hour.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides an operation machine is pressed in stand alone type gas well area which characterized in that: the hydraulic clamp lifting and pressing integrated machine comprises an integrated machine frame part, a lifting and pressing system, an annular sealing system, a well control safety part and a mast winch system, wherein the integrated machine frame part is fixed on the ground, the well control safety part is fixed in the middle of the integrated machine frame part, the annular sealing system is fixed at the upper end of the well control safety part in a sealing mode and is mainly used for controlling annular pressure, the lifting and pressing system is fixed at the upper end of the annular sealing system, the mast winch system is fixed at the top end of the lifting and pressing system and is used for lifting a single oil pipe or a tool or suspending a water hose and a tap for operation under pressure, a hydraulic clamp lifting arm is arranged on one side of the mast winch system, and the lower portion of the hydraulic clamp lifting arm is connected to an upper working platform; the upper working platform is fixed on the outer side of the lifting and pressing system, the middle platform is fixed on the outer side of the annular sealing system, and the lower platform is fixed on the outer side of the well control safety part.
2. The standalone gas well live working machine of claim 1, wherein: the complete machine frame part mainly comprises a lower platform, manual lifting supporting legs, a rotating arm, a middle platform, four-column frames and an upper working platform, wherein the rotating arm is arranged on the periphery of the lower platform respectively, the manual lifting supporting legs are fixed at the tail ends of the rotating arm and used for supporting the lower platform, and the four-column frames are four stand columns with flanges at two ends and connected with the four corners of the upper working platform and the middle platform through flanges.
3. The standalone gas well live working machine of claim 2, wherein: the whole machine frame part also comprises an escape sliding rod, and the escape sliding rod is hung on the upper operating platform.
4. The standalone gas well live working machine of claim 1, wherein: the lifting and pressing system mainly comprises double lifting oil cylinders, a 120t top-proof bearing slip set, a 120t moving top-proof slip, a double-motor driving turntable and a 120t moving bearing slip, wherein the lower end of the moving bearing slip is connected with the double-motor driving turntable, the lower side of the double-motor driving turntable is connected with the 120t moving top-proof slip, the lower side of the 120t moving top-proof slip is provided with the 120t top-proof bearing slip set, the double-motor driving turntable is fixed on the upper portion of a piston rod of the double lifting oil cylinders, and the upper portions of the double lifting oil cylinders are installed on an upper operating platform.
5. The standalone gas well live working machine of claim 4, wherein: the middle part of the double-motor driving turntable is provided with a rotating body, the upper part of the rotating body is connected with a 120t swimming bearing slip, and the lower part of the rotating body is connected with a 120t swimming anti-jacking slip.
6. The standalone gas well live working machine of claim 1, wherein: the annular sealing system mainly comprises an FZ18-70K lower working blowout preventer, a balanced pressure relief four-way joint, an FZ18-70K upper working blowout preventer, a middle platform transition flange, an FH18-35 annular blowout preventer and an annular buffer blowout preventer, wherein the lower end of the FH18-35 annular blowout preventer is hermetically fixed at the lower end of a 120t top-prevention bearing slip group, the lower end of the FH18-35 annular blowout preventer is hermetically connected with the FZ18-70K upper working blowout preventer through the middle platform transition flange, the lower end of the FZ18-70K upper working blowout preventer is hermetically connected with the balanced pressure relief four-way joint, the lower end of the balanced pressure relief four-way joint is hermetically connected with the FZ18-70K lower working blowout preventer through a flange, and the annular buffer blowout preventer is fixed on a double-lifting oil cylinder.
7. The standalone gas well live working machine of claim 1, wherein: the well control safety part mainly comprises an FZ18-70JQ shearing blowout preventer, a 2FZ18-70 double-ram blowout preventer, a lower platform transition flange, a pressure release cross joint and an FZ18-70 single-ram blowout preventer, wherein the FZ18-70 single-ram blowout preventer is fixed at the lower end of a working blowout preventer under the FZ18-70K in a sealing mode, the lower end of the FZ18-70 single-ram blowout preventer is connected with the pressure release cross joint in a sealing mode, the pressure release cross joint is connected to the upper side of a lower platform in a sealing mode through the lower platform transition flange and a connecting bolt group, the lower side of the lower platform is connected to the 2FZ18-70 double-ram blowout preventer in a sealing mode through the lower platform transition flange and the connecting bolt group, the lower end of the 2FZ18-70 double-ram blowout preventer is connected with the FZ18-70JQ shearing blowout preventer in a sealing mode, and the FZ18-70JQ shearing blowout preventer is connected to a wellhead cross joint in a sealing mode.
8. The standalone gas well live working machine of claim 1, wherein: the independent gas well under-pressure operation machine further comprises an operation control system, the operation control system mainly comprises an operation table, an auxiliary operation table and a lifting oil cylinder control valve group, the lifting control valve group is installed on the middle platform and connected to an oil cylinder and the operation table through hydraulic pipelines, and the operation table and the auxiliary operation table are installed on the upper working platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121304935.0U CN214886913U (en) | 2021-06-11 | 2021-06-11 | Independent gas well under-pressure operation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121304935.0U CN214886913U (en) | 2021-06-11 | 2021-06-11 | Independent gas well under-pressure operation machine |
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| Publication Number | Publication Date |
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| CN214886913U true CN214886913U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121304935.0U Active CN214886913U (en) | 2021-06-11 | 2021-06-11 | Independent gas well under-pressure operation machine |
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| CN (1) | CN214886913U (en) |
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2021
- 2021-06-11 CN CN202121304935.0U patent/CN214886913U/en active Active
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