CN104198179A - Load test method for casing tensioner of self-elevating platform - Google Patents

Load test method for casing tensioner of self-elevating platform Download PDF

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Publication number
CN104198179A
CN104198179A CN201410487315.3A CN201410487315A CN104198179A CN 104198179 A CN104198179 A CN 104198179A CN 201410487315 A CN201410487315 A CN 201410487315A CN 104198179 A CN104198179 A CN 104198179A
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China
Prior art keywords
oil cylinder
barge
sleeve pipe
test method
load test
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CN201410487315.3A
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CN104198179B (en
Inventor
王超
莫建
曾骥
王钰涵
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SHANGHAI WAIGAOQIAO SHIPBUILDING OCEAN ENGINEERING Co Ltd
Shanghai Waigaoqiao Shipbuilding Co Ltd
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SHANGHAI WAIGAOQIAO SHIPBUILDING OCEAN ENGINEERING Co Ltd
Shanghai Waigaoqiao Shipbuilding Co Ltd
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Priority to CN201410487315.3A priority Critical patent/CN104198179B/en
Publication of CN104198179A publication Critical patent/CN104198179A/en
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Abstract

The invention discloses a load test method for a casing tensioner of a self-elevating platform. The load test method includes the steps: S1, moving a cantilever beam leftwards; S2, moving two bases towards the front side and the rear side respectively; S3, abutting the top of a fixture against a clamping ring, and connecting the bottom end and the top end of the fixture to a barge and a top drive respectively; S4, hoisting the top drive to enable the distance between the bottom face of the barge and the water level to be 0.5m-1m, and combining and locking the two bases, a telescopic cylinder and the clamping ring; S5, loading water in the barge to a safe working load, and slowly descending the top drive; S6, starting an energy storage device, and enabling a piston rod of each oil cylinder to extend out to reach a maximum stoke; S7, stopping the energy storage device, staying for 3min-5min and observing whether the pressure of each oil cylinder declines or not. The load test method has the advantages that high safety is guaranteed, operations are simple, and test load can safely and quickly act on the casing tensioner in the narrow casing tension platform by the aid of the fixture.

Description

Be used for the load test method of the sleeve pipe stretcher of self-elevating platform (SEP)
Technical field
The present invention relates to a kind of load test method of the sleeve pipe stretcher for self-elevating platform (SEP).
Background technology
At present, in the process of self-elevating platform (SEP) offshore oil drilling, drilling pipe is deep in seawater and inserts seabed and drill.Under the effect that is subject to wave and ocean current, produce a larger vertically impulse force upwards for fear of drilling pipe, be provided with a preventer at the top of sleeve pipe stretcher, thereby drilling well payload segment is acted on sleeve pipe stretcher by preventer.Simultaneously, because the effect of temperature fluctuation and wave stream causes the variation in the length perpendicular in water surface direction of drilling pipe that the transverse movement of drilling pipe causes, thereby make this drilling pipe produce a downward pulling force to sleeve pipe stretcher, the stress being subject in order to offset this drilling pipe, piston rod stretching motion by sleeve pipe stretcher oil cylinder provides support power, improved to a great extent the stressing conditions of drilling pipe, improved security that drilling pipe uses with and serviceable life.Therefore, being successfully completed of sleeve pipe stretcher load test is to guarantee the whole self-elevating platform (SEP) key factor of job safety at sea.
Summary of the invention
The technical problem to be solved in the present invention is the defects such as the load test method danger coefficient in order to overcome traditional sleeve pipe stretcher of the prior art is higher, complicated operation, and a kind of load test method of the sleeve pipe stretcher for self-elevating platform (SEP) is provided.
The present invention solves above-mentioned technical matters by following technical proposals:
A kind of load test method of the sleeve pipe stretcher for self-elevating platform (SEP), this sleeve pipe stretcher comprises the base of two detachable connections, more than at least four even number oil cylinder, one retracting cylinder and be arranged at the snap ring on this retracting cylinder end face, respectively this base is slidedly arranged on a sleeve pipe tension force platform, on the sidewall of the detachable semi-girder that is connected in this self-elevating platform (SEP) of this sleeve pipe tension force platform, this oil cylinder of equal number is respectively installed on the base plate of this base, and respectively the piston rod of this oil cylinder is all connected with this retracting cylinder, the oil-in of those oil cylinders is connected with accumulator, this retracting cylinder arranges with this snap ring is concentric, and retracting cylinder and this snap ring are a point half formula structure, its feature is, this load test method comprises the following steps:
S 1, the semi-girder of this self-elevating platform (SEP) is moved to the left, making the distance between the well heart and the tail end of main hull of semi-girder is 15mm-18mm, and sleeve pipe tension force platform is reduced to working position;
S 2, two bases are taken apart, retracting cylinder and snap ring are splitted into respectively to uniform two parts simultaneously, and by two these bases respectively to front side, rear side shifting 1m-4.57m;
S 3, by a frock successively through this snap ring, retracting cylinder and sleeve pipe tension force platform, meanwhile, the top of frock is resisted against the upper surface of this snap ring, the bottom of this frock is connected respectively to a barge with top by wire rope, shackle and a top is driven;
S 4, lifting is driven in this top, make the bottom surface of this barge apart from water surface 0.5m-1m, then by all fit and locking of two bases, retracting cylinder and snap rings;
S 5, in this barge, load water to safe working load, drive on this top of slow decreasing, and frock is pressed on the snap ring of this sleeve pipe stretcher completely;
S 6, start this accumulator, the piston rod of oil cylinder stretches out and reaches range, keeps 3min-5min, records piston rod stroke and the pressure of oil cylinder;
S 7, close this accumulator, keep 3min-5min, whether the pressure of observing oil cylinder declines, and records oil cylinder working-pressure and stroke;
S 8, start this accumulator, the piston rod of oil cylinder is retracted, this frock of lifting and barge are driven in top, two bases, retracting cylinder and snap rings are all opened, and barge is transferred to the water surface.
In this programme, adopt above-mentioned load test method, ensure higher security, simple to operate, in narrow and small sleeve pipe tension force platform, utilize frock by test load acting on sleeve pipe stretcher safely and fast, compact conformation, has not only ensured the intensity of frock, and be convenient to lifting operation, save experimentation cost.
Preferably, at step S 1before further comprising the steps of:
S 11, the spud leg of this self-elevating platform (SEP) is inserted in seabed;
S 12, promote this main hull, and load water to each ballast tank of this main hull.
In this programme, adopt above-mentioned steps, can guarantee that the experimental enviroment of this load test method is consistent with the environment of sleeve pipe stretcher in the time normally working, improve the Stability and veracity of the load test of this sleeve pipe stretcher.
Preferably, at step S 1in, the semi-girder of this self-elevating platform (SEP) is moved to the left, making the distance between the well heart and the tail end of main hull of semi-girder is 15mm.
In this programme, adopt said method step, not only avoid in load test process barge to strike the spud leg of self-elevating platform (SEP), meanwhile, also reduce mobile labour intensity.
Preferably, at step S 2in, by two these bases respectively to front side, rear side shifting 4.57m.
In this programme, adopt said method step, avoid frock to produce in handling barge process rocking colliding sleeve pipe stretcher and damaged sleeve pipe stretcher, improve the security of load test.
Preferably, at step S 3in, this frock comprises a plate, the front surface at the top of this web joint and rear surface are all outward extended with one first cylindrical boss, the front surface of the bottom of this web joint and rear surface are all outward extended with one second cylindrical boss, those first cylindrical bosses are fixed on by a dynamometer between the two side of peristome of shackle, and this dynamometer is through the top of this shackle, the first cylindrical boss and web joint, this dynamometer is electrically connected with a pressure display unit, and this top is driven by wire rope and is connected on this dynamometer;
Those second cylindrical bosses are fixed on by a bolt between the two side of peristome of another shackle, and this bolt-through is in the bottom of this shackle, the second cylindrical boss and web joint, and this barge is connected in this by wire rope and unloads and buckle.
In this programme, adopt said method step, make it possible in narrow and small sleeve pipe tension force platform, by test load acting on sleeve pipe stretcher safely and fast, to have improved operability and the security of load test.Meanwhile, be connected with dynamometer unloading to buckle, can facilitate the load loading on barge is accurately safe working load.
Preferably, at step S 4in, lifting is driven in this top, make the bottom surface of this barge apart from water surface 0.5m.
In this programme, adopt said method step, not only avoid because the bottom surface of barge produces thrust apart from the too low wave that causes of the water surface to the bottom of barge the potential safety hazard having occurred when wire cable rupture while simultaneously also having avoided the bottom surface of barge too high apart from the water surface.
Preferably, at step S 6in, starting this accumulator, the piston rod of oil cylinder stretches out and reaches range, keeps 5min, records piston rod stroke and the pressure of oil cylinder.
In this programme, adopt said method step, can guarantee the stroke of piston rod and the stability of force value of this oil cylinder, can verify more accurately that sleeve pipe stretcher is under 272 tons of safe working loads, hydraulic jack can stretch out maximum stroke, and stable anchorage force can be provided.
Preferably, at step S 7in, close this accumulator, keep 5min, whether the pressure of observing oil cylinder declines, and records oil cylinder working-pressure and stroke.
In this programme, adopt said method step, can verify more accurately that sleeve pipe stretcher is under 272 tons of safe working loads, in the time closing accumulator, the piston rod of oil cylinder can not be moved, and can keep lasting tensile force.
Preferably, step S 8comprise the following steps afterwards:
S 81, remove that top is driven, frock, wire rope, shackle and barge, barge is removed;
S 82, by sleeve pipe tension force platform reset, semi-girder reset.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
The present invention has ensured higher security, simple to operate, utilizes frock by test load acting on sleeve pipe stretcher safely and fast in narrow and small sleeve pipe tension force platform, compact conformation, not only ensure the intensity of frock, and be convenient to lifting operation, saved experimentation cost.
Brief description of the drawings
Fig. 1 is the structural representation of sleeve pipe stretcher.
Fig. 2 is the trystate structural representation of the load test method of the sleeve pipe stretcher of preferred embodiment of the present invention.
Fig. 3 is the structure for amplifying schematic diagram of A part in Fig. 2.
Description of reference numerals:
Sleeve pipe stretcher: 1 base: 11 oil cylinders: 12
Retracting cylinder: 13 snap rings: 14 additional oil cylinders: 15
Sleeve pipe tension force platform: 2
Sliding panel: 3
Semi-girder: 4
Frock: 5 web joints: 51 first cylindrical bosses: 52
The second cylindrical boss: 53 dynamometers: 54 shackles: 55
Bolt: 56 wire rope: 57 location-plates: 58
Barge: 6
Drive on top: 7
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
In description of the invention, it will be appreciated that, term " on ", orientation or the position relationship of the instruction such as D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limitation of the present invention.
Please understood according to Fig. 1, this sleeve pipe stretcher 1 comprises the base 11 of two detachable connections, more than at least four even number oil cylinder 12, a retracting cylinder 13 and be arranged at the snap ring 14 on retracting cylinder 13 end faces.Wherein, each base 11 is fixed on a sliding panel 3, and sliding panel 3 is slidedly arranged on a sleeve pipe tension force platform 2, on the sidewall of this sleeve pipe tension force platform 2 by four detachable semi-girders 4 that are connected in self-elevating platform (SEP) of bearing pin.And semi-girder is a rectangular structure.
Simultaneously, the oil cylinder 12 of equal number is installed on each base 11 upper plates, and the piston rod of each oil cylinder 12 is all connected with retracting cylinder 13, the oil-in of those oil cylinders 12 is connected with accumulator, this retracting cylinder 13 and the concentric setting of snap ring 14, and retracting cylinder 13 is a point half formula structure with this snap ring 14.
In actual use procedure, drilling platform is arranged with a sleeve pipe (not shown) on the outer wall of drill bit at work, and between sleeve pipe and drill bit, is formed with a cavity.Rock in a lateral direction for fear of sleeve pipe, be also provided with some additional oil cylinders 15 on each base 11, those additional oil cylinders 15 arrange along the even interval of circumferencial direction of sleeve pipe, and for the outer wall against living this sleeve pipe.
Wherein, sleeve pipe stretcher 1 is in the time of work, and sleeve pipe is by the through hole at retracting cylinder 13 centers, and its top is fixedly connected with snap ring 14, accumulator communicates with oil cylinder 12 lower end rodless cavities by hydraulic line, and the pressure that then increases accumulator stretches out the piston rod of oil cylinder 12 and reaches the tension force that sleeve pipe is set.When wave or action of ocean current are in sleeve pipe, force casing buckling distortion, its longitudinal length shortens, now the piston rod of oil cylinder 12 is retracted, and can compensate the variation of waterproof casing fore-and-aft distance, the simultaneously sustainable top tension force that provides sleeve pipe to set, improve the force-bearing situation of sleeve pipe, improved its serviceable life.When deepwater work, sleeve pipe stretcher 1 provides the sleeve pipe one vertical direction tensile force of 272 tons upwards.
For this reason, apply safe working load 272 ton hours in order to verify at sleeve pipe stretcher 1, oil cylinder 12 can stretch out 600mm stroke, and can provide stable anchorage force, in the time closing accumulator, oil cylinder 12 can not be moved, and the invention provides a kind of load test method of the sleeve pipe stretcher 1 for self-elevating platform (SEP).
Please understood according to Fig. 2, this load test method comprises the following steps.
Step 100, inserts the spud leg of this self-elevating platform (SEP) in seabed, promotes this main hull, and loads water to each ballast tank of this main hull.
In this step, can guarantee that like this experimental enviroment of this load test method is consistent with the environment of sleeve pipe stretcher 1 in the time normally working, improve the Stability and veracity of the load test of this sleeve pipe stretcher 1.
Step 101, is moved to the left the semi-girder of this self-elevating platform (SEP) 4, and making the distance between the well heart and the tail end of main hull of semi-girder 4 is 15mm-18mm, and sleeve pipe tension force platform 2 is reduced to working position.Wherein, the well heart of semi-girder 4 and the center-aligned of sleeve pipe stretcher 1, and the center of sleeve pipe stretcher 1 all the time with rig floor center-aligned.
In this step, the semi-girder of this self-elevating platform (SEP) 4 is moved to the left, make the distance between the well heart and the tail end of main hull of semi-girder 4 be preferably 15mm.So not only avoid in load test process barge 6 to strike the spud leg of self-elevating platform (SEP), meanwhile, also reduced mobile labour intensity.
Step 102, takes two bases 11 apart, retracting cylinder 13 and snap ring 14 is splitted into respectively to uniform two parts simultaneously, and by two these bases 11 respectively to front side, rear side shifting 1m-4.57m.The center that can make like this sleeve pipe stretcher 1 all the time with rig floor center-aligned.
In this step, by two these bases 11 respectively to front side, preferably mobile 4.57m of rear side.Avoid like this frock 5 to produce in handling barge 6 processes and rocked collision sleeve pipe stretcher 1 and damage sleeve pipe stretcher 1, the security that has improved load test.
Step 103, by a frock 5 successively through this snap ring 14, retracting cylinder 13 and sleeve pipe tension force platform 2, meanwhile, the top of frock 5 is resisted against the upper surface of snap ring 14, the bottom of frock 5 is connected respectively to a barge 6 with top by wire rope 57, shackle 55 and a top drives 7.In the present embodiment, the top of frock 5 is provided with a location-plate 58, and the bottom surface of this location-plate 58 is resisted against the upper surface of snap ring 14.
Please understood according to Fig. 2-3, this frock 5 comprises a plate 51, the front surface at the top of web joint 51 and rear surface are all outward extended with one first cylindrical boss 52, and the front surface of the bottom of this web joint 51 and rear surface are all outward extended with one second cylindrical boss 53.
Wherein, those first cylindrical bosses 52 are fixed between the two side of peristome of shackle 55 by a dynamometer 54, and dynamometer 54 is through the top of this shackle 55, the first cylindrical boss 52 and web joint 51.This dynamometer 54 is electrically connected with a pressure display unit, and this top is driven 7 and is connected on this dynamometer 54 by wire rope 57.
Simultaneously, those second cylindrical bosses 53 are fixed on by a bolt 56 between the two side of peristome of another shackle 55, and bolt 56 is through the bottom of this shackle 55, the second cylindrical boss 53 and web joint 51, and barge 6 is connected in shackle 55 by wire rope 57.
In the present embodiment, adopt said method step, make it possible at narrow and small sleeve pipe tension force platform 2 interiorly by test load acting on sleeve pipe stretcher 1 safely and fast, improved operability and the security of load test.Meanwhile, be connected with dynamometer 54 in shackle 55, can facilitate the load loading on barge 6 is accurately safe working load.
Step 104, drives 7 liftings by top, makes the bottom surface of this barge 6 apart from water surface 0.5m-1m, then by all fit and locking of two bases 11, retracting cylinder 13 and snap ring 14.
At step S 4in, 7 liftings are driven in top, make the bottom surface of this barge 6 apart from water surface 0.5m.So not only avoid because the bottom surface of barge 6 produces thrust apart from the too low wave that causes of the water surface to the bottom of barge 6 potential safety hazard occurring when wire rope 57 ruptures while also having avoided the bottom surface of barge 6 too high apart from the water surface simultaneously.
Step 105, at the interior loading water of this barge 6, to safe working load, this top of slow decreasing drives 7, and frock 5 is pressed on the snap ring 14 of this sleeve pipe stretcher 1 completely.
Step 106, starts this accumulator, and the piston rod of oil cylinder 12 stretches out and reach range, keeps 3min-5min, records piston rod stroke and the pressure of oil cylinder 12.In actual use procedure, self-elevating platform (SEP) also comprises a control device, and control device comprises a controller and a control panel.This controller is electrically connected with accumulator, oil cylinder and for controlling the running status of accumulator, oil cylinder, this control panel is electrically connected pressure and the stroke for give an order signal and demonstration accumulator, oil cylinder with this controller.
Wherein, a pair of oil cylinder 12 that accumulator is relative position provides pressure to ensure continuing and balance of load.At this, start after this accumulator operation control panel, make the piston rod of oil cylinder 12 protrude upward 600mm stroke, keep 3min-5min, the pressure reading of observing oil cylinder 12 changes, and reading does not change and oil cylinder 12 strokes can not decline has just proved that sleeve pipe stretcher 1 can provide stable anchorage force.
In this step, start accumulator, the piston rod of oil cylinder 12 stretches out and reaches range, keeps 5min, records piston rod stroke and the pressure of oil cylinder 12.Can guarantee like this stroke of piston rod and the stability of force value of this oil cylinder 12, can verify more accurately that sleeve pipe stretcher 1 is under 272 tons of safe working loads, hydraulic jack 12 can stretch out maximum stroke, and stable anchorage force can be provided.
Step 107, closes accumulator, keeps 3min-5min, and whether the pressure of observing oil cylinder 12 declines, and records oil cylinder 12 pressure and stroke.
In this step, close this accumulator, keep 5min, whether the pressure of observing oil cylinder 12 declines, and records oil cylinder 12 pressure and stroke.Can verify more accurately that like this sleeve pipe stretcher 1 is under 272 tons of safe working loads, in the time closing accumulator, the piston rod of oil cylinder 12 can not be moved, and can keep lasting tensile force.
Step 108, starts this accumulator, and the piston rod of oil cylinder 12 is retracted, and this frock 5 of 7 liftings and barge 6 are driven in top, two bases 11, retracting cylinder 13 and snap ring 14 are all opened, and barge 6 is transferred to the water surface.
Step 109, removes that top drives 7, frock 5, wire rope 57, shackle 55 and barge 6, and barge 6 is removed.
Step 110, resets sleeve pipe tension force platform 2, and semi-girder 4 resets.
In sum, the present invention has ensured higher security, simple to operate, in narrow and small sleeve pipe tension force platform, utilize frock by test load acting on sleeve pipe stretcher safely and fast, compact conformation, has not only ensured the intensity of frock, and be convenient to lifting operation, save experimentation cost.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and amendment all fall into protection scope of the present invention.

Claims (9)

1. the load test method for the sleeve pipe stretcher of self-elevating platform (SEP), this sleeve pipe stretcher comprises the base of two detachable connections, more than at least four even number oil cylinder, one retracting cylinder and be arranged at the snap ring on this retracting cylinder end face, respectively this base is slidedly arranged on a sleeve pipe tension force platform, on the sidewall of the detachable semi-girder that is connected in this self-elevating platform (SEP) of this sleeve pipe tension force platform, this oil cylinder of equal number is respectively installed on the base plate of this base, and respectively the piston rod of this oil cylinder is all connected with this retracting cylinder, the oil-in of those oil cylinders is connected with accumulator, this retracting cylinder arranges with this snap ring is concentric, and retracting cylinder and this snap ring are a point half formula structure, it is characterized in that, this load test method comprises the following steps:
S 1, the semi-girder of this self-elevating platform (SEP) is moved to the left, making the distance between the well heart and the tail end of main hull of semi-girder is 15mm-18mm, and sleeve pipe tension force platform is reduced to working position;
S 2, two bases are taken apart, retracting cylinder and snap ring are splitted into respectively to uniform two parts simultaneously, and by two these bases respectively to front side, rear side shifting 1m-4.57m;
S 3, by a frock successively through this snap ring, retracting cylinder and sleeve pipe tension force platform, meanwhile, the top of frock is resisted against the upper surface of this snap ring, the bottom of this frock is connected respectively to a barge with top by wire rope, shackle and a top is driven;
S 4, lifting is driven in this top, make the bottom surface of this barge apart from water surface 0.5m-1m, then by all fit and locking of two bases, retracting cylinder and snap rings;
S 5, in this barge, load water to safe working load, drive on this top of slow decreasing, and frock is pressed on the snap ring of this sleeve pipe stretcher completely;
S 6, start this accumulator, the piston rod of oil cylinder stretches out and reaches range, keeps 3min-5min, records piston rod stroke and the pressure of oil cylinder;
S 7, close this accumulator, keep 3min-5min, whether the pressure of observing oil cylinder declines, and records oil cylinder working-pressure and stroke;
S 8, start this accumulator, the piston rod of oil cylinder is retracted, this frock of lifting and barge are driven in top, two bases, retracting cylinder and snap rings are all opened, and barge is transferred to the water surface.
2. load test method as claimed in claim 1, is characterized in that, at step S 1before further comprising the steps of:
S 11, the spud leg of this self-elevating platform (SEP) is inserted in seabed;
S 12, promote this main hull, and load water to each ballast tank of this main hull.
3. load test method as claimed in claim 1, is characterized in that, at step S 1in, the semi-girder of this self-elevating platform (SEP) is moved to the left, making the distance between the well heart and the tail end of main hull of semi-girder is 15mm.
4. load test method as claimed in claim 1, is characterized in that, at step S 2in, by two these bases respectively to front side, rear side shifting 4.57m.
5. load test method as claimed in claim 1, is characterized in that, at step S 3in, this frock comprises a plate, the front surface at the top of this web joint and rear surface are all outward extended with one first cylindrical boss, the front surface of the bottom of this web joint and rear surface are all outward extended with one second cylindrical boss, those first cylindrical bosses are fixed on by a dynamometer between the two side of peristome of shackle, and this dynamometer is through the top of this shackle, the first cylindrical boss and web joint, this dynamometer is electrically connected with a pressure display unit, and this top is driven by wire rope and is connected on this dynamometer;
Those second cylindrical bosses are fixed on by a bolt between the two side of peristome of another shackle, and this bolt-through is in the bottom of this shackle, the second cylindrical boss and web joint, and this barge is connected in this by wire rope and unloads and buckle.
6. load test method as claimed in claim 1, is characterized in that, at step S 4in, lifting is driven in this top, make the bottom surface of this barge apart from water surface 0.5m.
7. load test method as claimed in claim 1, is characterized in that, at step S 6in, starting this accumulator, the piston rod of oil cylinder stretches out and reaches range, keeps 5min, records piston rod stroke and the pressure of oil cylinder.
8. load test method as claimed in claim 1, is characterized in that, at step S 7in, close this accumulator, keep 5min, whether the pressure of observing oil cylinder declines, and records oil cylinder working-pressure and stroke.
9. the load test method as described in any one in claim 1-8, is characterized in that step S 8comprise the following steps afterwards:
S 81, remove that top is driven, frock, wire rope, shackle and barge, barge is removed;
S 82, by sleeve pipe tension force platform reset, semi-girder reset.
CN201410487315.3A 2014-09-22 2014-09-22 For the load test method of the sleeve pipe stretcher of jack-up unit Active CN104198179B (en)

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Cited By (5)

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CN105464064A (en) * 2016-01-11 2016-04-06 南通振华重型装备制造有限公司 System and method for cantilever beam heavy-duty test of self-elevating drilling platform
CN109060336A (en) * 2018-08-31 2018-12-21 华南理工大学 A kind of Z-type Automatic Wedge Belt Tensioner test device
CN109422200A (en) * 2017-09-04 2019-03-05 烟台中集来福士海洋工程有限公司 The installation method of drilling platforms waterproof casing hydraulic tensioning cylinder
CN110296821A (en) * 2019-06-27 2019-10-01 宝鸡石油机械有限责任公司 A kind of wire rope type riser stretcher compensation function experimental rig and test method
CN111337281A (en) * 2020-03-09 2020-06-26 招商局重工(江苏)有限公司 Method for heavy-load test of semi-submersible type hoisting and disassembling platform

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