EP3027842A2 - Klemmvorrichtung und verfahren zur ortsfesten fixierung einer antriebswelle - Google Patents
Klemmvorrichtung und verfahren zur ortsfesten fixierung einer antriebswelleInfo
- Publication number
- EP3027842A2 EP3027842A2 EP14783761.1A EP14783761A EP3027842A2 EP 3027842 A2 EP3027842 A2 EP 3027842A2 EP 14783761 A EP14783761 A EP 14783761A EP 3027842 A2 EP3027842 A2 EP 3027842A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping device
- clamping
- drive shaft
- hole
- riser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims description 57
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 239000000565 sealant Substances 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 16
- 238000009844 basic oxygen steelmaking Methods 0.000 description 13
- 230000007423 decrease Effects 0.000 description 10
- 238000005553 drilling Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001023788 Cyttus traversi Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
- E21B33/062—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/12—Rope clamps ; Rod, casings or tube clamps not secured to elevators
Definitions
- the present invention relates to a clamping device for a drive shaft of a feed pump and to a method for the stationary fixing of a drive shaft of a feed pump according to the features of the preambles of claims 1 and 13.
- shut-off valves which serve to protect against the borehole pressure and which can prevent a blowout of oil and / or gas in the event of imminent overpressure by being quickly blocked.
- blow-out preventers An example of this are so-called blow-out preventers.
- a Blow Out Preventer - BOP for short - is a wellhead-mounted equipment used to provide protection against down hole pressure in the annulus between casing and pipes or in an uncased borehole during drilling, commissioning, testing or maintenance.
- a BOP is therefore a special closure device or a special shut-off valve of a feed pump at a drilling point, which prevents an oil or gas outbreak in the event of sudden overpressure.
- the conventionally known abbreviation BOP is used for such a termination device.
- the BOP serves in particular as a central security element in a deep well.
- a single shut-off valve can be arranged. More preferably, however, multiple shut-off valves are combined to form a BOP stack.
- the BOPs are operated by a strong hydraulic system.
- the use of multiple BOPs also means a redundant design in terms of high
- the BOP is placed immediately above the borehole. For undersea drilling, he is thus directly on the seabed.
- Known BOPs as described for example in US 5,875,841 B, comprise a central housing with a passage for the conveyed medium and a
- the drive rod passageway provides an opening for entry of the drive rod into the wellbore.
- the BOP further includes a pair of clamping rams, called RAMs, which are variably arranged can be and thus forms a seal around the drive or polishing rod to prevent inadvertent leakage of medium.
- No. 5,765,813 B describes a BOP, wherein the sealing rubber layer of the RAM bolt is reinforced in the area of the sealing surfaces.
- the reinforcement is that the RAM pin core comprises outwardly facing ribs.
- the ribs serve to resist the extrusion of the rubber layer when the BOP is subjected to high pressure.
- the object of the invention is to provide a clamping device which is suitable, in addition to the known sealing function, the drive shaft of a feed pump as needed, for example, during maintenance, when the drive head must be changed and so on to securely fix.
- the object is in particular to provide a clamping device to keep drive shafts with great mass safely.
- the invention relates to a clamping device for fixing a drive shaft of a feed pump in a riser of a borehole, in particular serves the
- the clamping device for safe clamping of the drive shaft.
- the clamping device comprises a securing mechanism for the drive shaft, which fixes the position of the drive shaft, in particular when suspending the linkage of a drilling device and / or when performing maintenance spatially mechanically.
- the clamping device according to the invention does not constitute a conventionally known blow-out preventer or BOP, since it is not intended to shut off the drill pipe completely by the clamping device, in order thus to prevent an outflow of conveying fluid.
- the riser of the borehole serves to convey a delivery fluid by means of a feed pump with drive shaft.
- the drive shaft is for example part of an eccentric pump or a so-called beam pump or horse head pump with linkage.
- the clamping device comprises a housing with a first
- the housing of the clamping device comprises a second lateral through hole, which impinges orthogonally on the first through hole.
- a mechanically acting clamping means is received and / or guided.
- the drive shaft of the feed pump in the housing of the clamping device can be axially and / or radially clamped or fixed.
- the drive shaft is fixed in a stationary manner by the at least one clamping means of the clamping device such that the weight of the drive shaft and, if appropriate, further components arranged on the drive shaft
- Delivery pump is held within the riser by the clamping device. But that means that on the clamping device such high clamping forces on the
- Drive shaft must be applied, which can hold a weight of up to several tons, since the drive shaft, depending on the depth of the bore may have several hundred, up to 1600m or more than 1600m longitudinal extent.
- Clamping means a first and a second clamping device. The two
- Clamping devices are each arranged opposite one another, on both sides of the first through-hole, in the second through-hole.
- the first through-hole separates the second through-hole into a first and a second side opening.
- the first clamping device is arranged for example in the first lateral bore and the second clamping device is arranged in the second lateral bore.
- the two clamping devices are each displaceable orthogonal to the longitudinal axis of the drive shaft.
- the first clamping device is associated with a stop which limits the displacement in the direction of the drive shaft. The stop is necessary for a correct centering in the spatial fixation of the drive shaft within the riser. The fixation is effected in particular by a clamping of the drive shaft between the two
- the necessary pressure and / or clamping force is applied to the drive shaft via the second clamping device.
- the centering of the drive shaft by means of a stop is particularly important when the two clamping devices not be brought synchronously and synchronously to the drive shaft.
- Clamping device in at least one first working position or a second
- Working position can be positioned or moved.
- first working position no operative connection between the first clamping device and the drive shaft is formed.
- delivery fluid can be passed through the clamping device.
- second operating position of the first clamping device this is displaced so far within the second through hole in the direction of the first through hole, that the first clamping device bears against the stop and the drive shaft and the arrangement of the drive shaft within the riser in the
- the second clamping device can also be brought into at least one first working position or at least one second working position. In the first working position no operative connection between the second clamping device and the drive shaft is formed. Thus, delivery fluid can be passed through the clamping device. In the second operating position of the second clamping device, this is displaced so far within the second through hole in the direction of the first through hole, that the second clamping device bears against the drive shaft and against the
- the clamping device comprises at least one sealing means to seal the drive shaft within the clamping device against the riser or to dense the drive shaft to the riser and thus to prevent further delivery fluid from rising when the drive shaft is static and clamped in the clamping device ,
- a suitable sealing means preferably consists of a first and a second sealing block which is orthogonal to the drive shaft
- the clamping means also forms the sealing means.
- the clamping means comprises sealing elements which the
- Drive shaft can seal against the riser.
- the first and the second clamping device completely surround the drive shaft together in its second operating position.
- the sealing means are designed as additional components of the clamping device, then the first and second clamping devices can be designed such that they do not completely surround the drive shaft in their respective second working position. In this case, a clamping, which extends only around partial circumferential regions of the drive shaft, sufficient.
- both the first and the second clamping means of the clamping means are preferably in their respective first working position. That is, the clamping device is in the first
- both the first and the second clamping device preferably have their respective second working position.
- the drive shaft is mechanically fixed with respect to the riser.
- the drive shaft is secured in the second operating position within the clamping device by the clamping device of the clamping means against rotation and / or the
- Clamping device has not yet been introduced to the drive shaft and thus present in its first working position or an intermediate position between the first and second working position, also conveying fluid through the clamping device can be conducted.
- the clamping means is also designed as a sealing means
- the drive shaft is not only fixed mechanically, but also sealed against the riser.
- the passage of fluid through the clamping means designed as a sealing means is prevented.
- a force is applied to the drive shaft with the second clamping device. This can be done manually by
- a hand spindle is used for longitudinal displacement of the second clamping device within the second through-bore.
- a motor drive is conceivable.
- the second clamping device is associated with a hydraulic force increasing device, for
- the clamping devices have actuating elements via which the
- Clamping means can be moved by means of tools within the second through hole orthogonal to the longitudinal axis of the drive shaft.
- the clamping device at their opposite the first through hole aligned free ends each recordings for rotary key or the like or the free ends are formed as a hexagon, etc.
- Actuators is effected with corresponding tools a displacement in the longitudinal direction of the respective first and second clamping devices within the second through hole of the clamping device. Since no working pressure has to be applied by means of the first clamping device, the force necessary for the adjustment is small in comparison to the force required for the adjustment and adjustment of the second clamping device. In order to apply the necessary clamping force to the second clamping device, would have to be used
- Turntable be equipped with a correspondingly large lever, that is, the tool must be sufficiently large dimensions.
- the tool When using one of the second clamping device associated hydraulic force increasing the required tool can be made smaller. In particular, then can for Adjustment of the first and second clamping device the same tool can be used.
- the clamping device is modular, that is, there is at least one housing module with the described first and second
- Clamp module Depending on the diameter of the drive shaft pointing in the direction of the first through hole free end portions of the clamping means of the clamping means must be designed to be dimensioned accordingly to surround the drive shaft in each case partially laterally and clamp.
- the second clamping device of the clamping means must be correctly dimensioned depending on the weight of the drive shaft to be supported and optionally further arranged thereon components, so that the clamping means can hold the weight of the so-called drill string safely.
- Clamping device two more lateral through holes, which each impinge at least substantially orthogonally on the first through hole.
- the total of three lateral through holes are each in different
- the first through hole Positions along the longitudinal axis of the first through holes arranged.
- the first through hole is aligned vertically after mounting the clamping device on the riser or oriented parallel to the longitudinal extent of the riser. Accordingly, the total of three lateral through holes are arranged horizontally aligned. Preferably, the three are lateral
- a further clamping means and a sealing means are arranged in the two further lateral through-holes.
- the further clamping means comprises - as already described above the clamping means - two oppositely arranged clamping devices, in particular a first clamping device with stop for spatial centering of the drive shaft and a second clamping device for applying a clamping force or a working pressure on the drive shaft.
- the sealing means comprises two opposing sealing means for sealing the
- Clamping means existing clamping means a force in a defined direction are applied to the drive shaft. According to one embodiment, the
- the first clamping means for the radial protection is provided and comprises clamping devices which are specially designed for the radial clamping of the drive shaft and secure the drive shaft against rotation.
- the second clamping means is provided for axial securing and includes clamping means for axially clamping the drive shaft to the drive shaft against an axial
- the sealing elements serve only for sealing the riser with respect to the drive shaft to prevent an undesired upward discharge of the conveying fluid.
- At least one of the following features are provided. According to one embodiment of the invention, at least one of the following features:
- Clamping means of the first clamping means of a clamping device a first
- Side wall extends within the clamping device from top to bottom in the direction of the first vertical through hole, which runs parallel to the drive shaft of the feed pump.
- first spherical or ball-like clamping elements are at least largely arranged one above the other.
- the drive shaft can be clamped by means of the at least two first clamping elements, which prevents a downward axial movement of the drive shaft.
- the side facing away from the drive shaft of the first inner space has an inclined wall and the cross-sectional area of the first inner space decreases from top to bottom.
- the diameter of the clamping elements also decreases from top to bottom, that is, the uppermost clamping element is larger than the lowest
- At least one of the following features are provided. According to one embodiment of the invention, at least one of the following features:
- Clamping means of the second clamping means of the clamping device a second Interior, which is at least partially disposed around the first through hole around.
- the bottom surface is aligned substantially orthogonal to the longitudinal axis of the drive shaft or to the longitudinal axis of the riser.
- At least two second spherical or ball-like clamping elements side by side in a plane at least substantially orthogonal to the longitudinal axis of the first through hole or orthogonal to the longitudinal axis of the
- the drive shaft is clamped and thus blocked when it rotates counter to the intended direction of rotation for the pump drive.
- Such a rotational movement can occur, for example, when the drive head fails. Since the drive linkages of feed pumps for boreholes are up to 1,600 m long, there is a torsion of the pump between the drive and the pump
- the cross-section of the second interior decreases in the counterclockwise direction and the diameter of the second in the second
- Clamping means is clamped, and moves the drive shaft counterclockwise, then the at least two clamping elements within the second interior are also moved in the counterclockwise direction and jamming the
- the cross section of the second interior decreases in each case from the center in and counterclockwise.
- the clamping elements arranged in the middle region have a larger diameter than those in the respective outer end regions of the second
- clamping device can thus serve the following functions:
- the clamping device can apply a first pressure and / or clamping force, which prevents the drive shaft from rotating radially.
- a first function thus consists in ensuring against rotation of the drive shaft.
- the clamping device can apply a second pressure and / or clamping force, with which the drive shaft is clamped axially, to absorb the axial load - more precisely, the down after acting mass or weight of the drill string.
- a second function is accordingly to safeguard against axial displacement of the drive shaft.
- shut-off valves can be sealed by means of the clamping device a riser relative to the drive shaft at the top, so that no delivery fluid can escape upwards.
- a third function thus consists in sealing the drive shaft with respect to the riser for the conveying fluid.
- Another secondary function of the clamping device is the active passage of the conveying fluid through the riser with rotating drive shaft, that is in the normal operating mode.
- Clamping device comprises a first clamping means having a first interior with oblique side wall and clamping elements for axial clamping of the drive shaft, further comprising a second clamping means with a second interior and clamping elements for radial clamping of the drive shaft, and a sealing means for sealing the drive shaft relative to the riser.
- the clamping device comprises a clamping and sealing means, wherein the first clamping means comprises a first inner space with oblique side wall and clamping elements for axial clamping of the drive shaft and wherein the second clamping means has a second interior and
- Clamping means of the clamping and sealing means comprises a first interior with oblique side wall and clamping elements for axial clamping of the drive shaft and wherein the first clamping means a second interior and clamping elements for radial clamping of the drive shaft and wherein the first through hole aligned free ends of the first and second clamping means the
- the clamping device according to the invention is intended for installation between a borehole and the riser pipe for conveying a conveying fluid.
- Clamping device includes an upper mounting portion for attachment to a drive head connected to the riser and a lower mounting portion for attachment to the wellbore. It is preferably provided that the lower and / or the upper attachment region comprises a modular, replaceable flange.
- the lower flange may comprise means for angular adjustment, so that the arrangement or positioning of the clamping device on the borehole is preferably infinitely adjustable, in particular so that a stepless
- the lower flange device is provided as a module that is selected in the application of appropriate size and attached to the housing of the clamping device.
- the lower flange device is adapted to allow variable alignment of the housing of the clamping device between the borehole and the drive head.
- the flange device comprises a first mounting plate, with which the flange device is screwed to the housing of the clamping device.
- the flange device comprises a second Mounting plate with mounting holes, which are arranged corresponding to corresponding standardized fasteners on the wellbore. Since there are various standard regulations worldwide, the clamping device can be easily adapted to the borehole by selecting the appropriate flange device with corresponding lower mounting plate having appropriately sized mounting holes for the respective borehole.
- the first mounting plate comprises for screwing the flange device on the housing of the clamping device elongated holes. These can be designed in particular as a partial radius.
- the flange device is placed on the wellbore and secured thereto.
- the clamping device is placed on the flange and aligned so that the clamping device can be advantageously connected to existing lines, for example
- the clamping device preferably has above the lateral through-hole for the clamping means of the clamping means or above the lateral
- the clamping device thus assumes the additional function of a so-called FlowT device.
- a subsequently installed clamping device should thus be able to be flexibly adapted to the arrangement of the drainage lines without having to change their course separately.
- the first mounting plate has elongated holes, the Winkelelfeinjust ist and optimal alignment of the housing
- Enable clamping device on the flange device The housing is placed in optimized alignment on the flange device and over the
- the invention further relates to a method for spatially fixing a
- Clamping device arranged, in particular clamping device, as has already been described above.
- Delivery fluid passed through the clamping device.
- Clamping device occupy at least a second operating position.
- a first pressure or clamping force is applied to the drive shaft with the clamping device, which prevents the drive shaft from radially rotating.
- a second pressure or clamping force is applied to the drive shaft, which clamps the drive shaft within the clamping device such that an axial movement of the drive shaft is prevented within the riser.
- the second pressure or clamping force prevents the drive shaft from being moved axially within the riser.
- the drive shaft can be sealed in the second operating position relative to the riser that no fluid can rise to the top.
- the application of the respective pressure or clamping force for the radial and / or axial clamping of the drive shaft is effected by at least one clamping means and the sealing of the drive shaft relative to the riser by at least one sealing means of the clamping device.
- the sealing of the drive shaft relative to the riser and the application of the respective pressure or clamping force for the radial and / or axial clamping of the drive shaft by a single sealing and clamping means consisting of a first and a second sealing and clamping device consists.
- the sealing and clamping of the drive shaft by means of a clamping device described above.
- the first clamping device described above.
- Clamping device can be moved quickly within the second through hole in the direction of the first through hole. The displacement is limited by a within the clamping device. Subsequently, the pressure or clamping force is applied in a controlled manner by the second clamping device on the drive shaft.
- the present invention describes a clamping device for a feed pump, in particular for a borehole eccentric pump, with which the drive shaft of the feed pump can be sealed in particular for maintenance and / or repair work and fixed axially and / or radially by clamping.
- the three functions sealing, radial securing and axial securing can be realized either by a single sealing and clamping means consisting of a first and second sealing and clamping device. According to a preferred Embodiment, the three functions are each realized individually, preferably by two clamping means and a sealant.
- the clamping means each consist of a first and second clamping means and the sealing means consists of a first and second sealing means.
- the first and second clamping devices or the first and second sealing means are arranged in pairs opposite each other in horizontally aligned, lateral through holes.
- Each clamping means comprises a first clamping device with which the drive shaft is spatially centered and a second clamping device, preferably with a hydraulic
- Force increasing means is provided and the actual working pressure, i. the clamping or pressure force generated.
- the clamping device according to the invention is in particular a manually operated safety valve to ensure safety during inspection and maintenance work on the drive unit or on the borehole, in particular in the
- the clamping device is in the
- the clamping device is arranged between the drive head of the feed pump and the wellhead.
- the riser can be sealed against the drive shaft or the linkage and the drive shaft can be additionally fixed in place and in particular secured against radial rotation and / or axial displacement.
- the position of the drive shaft can be fixed and secured in the axial direction and / or in the radial direction.
- the fixation in the axial direction is particularly necessary for securing the drive shaft when suspending the linkage, for example when replacing the feed pump.
- the securing in the radial direction is necessary in particular in the context of maintenance work on the feed pump and / or on the riser.
- the radial fixation should in particular prevent the backspin of the drive shaft when stopping the feed pump.
- clamping device With the clamping device according to the invention high clamping forces can be applied manually, in particular clamping forces sufficient to securely fix the drive shaft stationary within the riser, for example, if the drive head to be changed or further maintenance should be performed. Consequently can be dispensed with expensive, large accessories, which are commonly used to hold the drive shaft, which may have a weight of several tons.
- the clamping device described here is especially for borehole pumps for drilling on land, that is onshore, provided, for example, a
- the clamping device comprises in particular a quick-lock function.
- Clamping device can be moved up to the drive shaft quickly.
- the stop prevents the first clamping device from being too far in the first one
- Through hole of the clamping device can be inserted and centered the drive shaft within the riser in the region of the clamping device. Subsequently, the necessary working pressure is applied via the second clamping device, wherein means may be provided which mark an operating position, up to which the clamping device can be inserted quickly. The remaining clamping or pressure force is then applied in a controlled manner, in particular by slow further insertion of the second clamping device in order to avoid excessive clamping and thus possible damage to the drive shaft.
- Figure 1 shows a cross section through an embodiment of a clamping device according to the invention.
- Figure 2 shows a schematic external view of a housing of a
- FIG. 3 shows a schematic view of a housing and a first one
- FIG. 4 shows a schematic external view of a housing, a first and a second clamping device of a clamping device.
- FIG. 5 shows a schematic external view of a housing, a first and a second clamping device of a further embodiment of a clamping device.
- Figure 6A shows the respective internally arranged free end portions of a first and a second clamping device.
- FIG. 6B shows the seals associated with the clamping devices.
- Figures 7A and 7B show various schematic views of a
- FIG. 8A to 8D show various schematic views of an axially clamping clamping device.
- Figure 9 shows a first embodiment of a radially clamping
- FIG. 10 shows a schematic view of a second embodiment of a radially clamping clamping device.
- Figures 1 1 A and 1 1 B show various schematic views of a
- Embodiment of a clamping device with two clamping means and a sealant Embodiment of a clamping device with two clamping means and a sealant.
- FIG. 1 shows a cross section through an embodiment according to the invention of a clamping device 1.
- the clamping device 1 comprises a housing 2 with a first through-hole 5.
- the drive shaft (not shown) of the feed pump is arranged in the first vertical through-hole 5.
- the feed pump serves to convey a delivery fluid through the riser of a borehole.
- the housing 2 has a second lateral through-hole 6, largely perpendicular to the first through-hole 5 impinges.
- the second through-hole 6 is thus separated by the first through-hole 5 into two opposing partial regions, which are referred to below as the first lateral bore 6a and the second lateral bore 6b.
- a first clamping device 10 and in the second lateral bore 6b a second clamping device 1 1 is arranged, which are each orthogonally displaceable to the drive shaft (not shown) and the first through hole 5 are stored.
- the clamping devices 10, 1 1 each include seals 8, 8 * and thus also serve as sealing means to in
- the drive shaft with respect to the riser or with respect to the extension of the riser forming through hole 5 within the clamping device 1 to seal upwards.
- first and the second clamping device 10, 1 1 form a
- Clamping device 1 can be clamped axially and / or radially.
- clamping means 10, 1 1 of the clamping means so high clamping forces are applied, that with the clamping device 1, the entire weight of the drive shaft can be maintained when, for example, the drive head has to be maintained, repaired or replaced.
- the clamping devices 10, 11 are arranged in a first working position in their respective lateral bores 6a, 6b such that the clamping devices 10, 11 do not clamp the drive shaft, but that conveying fluid can flow through the clamping device 1.
- the housing 2 comprises above the second through-bore 6 at least one drainage bore 19, preferably a through-flow bore 19 * , which likewise meets the first through-bore 5 orthogonally.
- the drain hole 19, 19 * at least substantially arranged at a 90 ° angle to the second through hole 6.
- the passage-drain hole 19 * represents the function of a FlowT within the clamping device 1. That is about the passage-drain hole 19 * can be a direct connection between the
- FIG. 1 shows a schematic external view of the housing 2 a
- the Clamping device 1 In addition, a lower flange device 4 is shown.
- the lower flange device 4 is designed in particular as an exchangeable module. By selecting the appropriate flange module, the clamping device 1 can be attached to each well, no matter what the standard.
- the flange device 4 allows variable positioning of the clamping device 1 between the borehole and the drive head.
- the flange device 4 comprises a first upper mounting plate 13 with mounting holes 17, with which the
- Flange device 4 is fastened by means of screws 15 on the housing 2 of the clamping device 1. Furthermore, the flange device 4 comprises a second lower one
- the mounting holes 16 of the second mounting plate 14 are arranged corresponding to corresponding normalized fasteners at the borehole. Because there are different
- Standard regulations worldwide can by selecting the appropriate flange 4 with a mounting plate 14 with suitably dimensioned or suitable
- the clamping device 1 are easily adapted for each hole.
- the first fastening plate 13 For fastening the flange device 4 to the housing 2 by means of screws 15, the first fastening plate 13 comprises slot bores 17 * which extend radially in segments over the first fastening plate 13.
- the clamping device 1 is aligned on the well, that it can be advantageously connected to existing lines, in particular on lines with which the delivery fluid is removed. The connection to existing lines is preferably carried out without their positioning or course must be changed.
- FIG 3 shows a schematic view of a housing 2 and a first clamping device 10 of a clamping device 1.
- the first clamping device 10 is inserted into the first lateral bore 6a.
- the first clamping device 10 is a so-called clamping bolt 10 * .
- the inside of the clamping device 1 in the direction of the first through hole 5 facing free end 20 of the first clamping bolt 10 * has a clamping portion 21 with contact surface 22.
- the contact surface 22 is in particular formed as a concave notch perpendicular to the longitudinal axis of the first clamping bolt 10 * .
- the concave notch is aligned so that it is parallel to the longitudinal axis of the drive shaft or parallel to the longitudinal axis Ls of the first through hole 5. If the clamping bolt 10 * is displaced as far as the stop 9 (see FIG. 1) into a second working position, then the drive shaft (not shown) is partially in form-locking manner in the concave area
- FIG. 3 further shows a fastening device 23 for secure attachment of the first clamping device 10 to the housing 2 of the clamping device.
- the rear free end 24 of the first clamping device 10 protrudes after the assembly of the first
- the outwardly projecting free end 24 of the first clamping device 10 is formed as a hexagon and can be adjusted by means of a corresponding rotary key. The adjustment causes a longitudinal displacement of the first clamping device 10 within the second
- FIG. 4 shows a schematic external view of a housing 2 of FIG.
- Clamping device 1 1 is a so-called clamping bolt 1 1 * . That inside the
- Clamping device 1 in the direction of the first through hole 5 facing free end 30 of the second clamping bolt 1 1 * has a clamping portion 31 with contact surface 32.
- the contact surface 32 is formed in particular as a concave notch perpendicular to the longitudinal axis of the second clamping bolt 1 1 * .
- the concave notch becomes like this
- the second clamping bolt 1 1 * a compressive force is applied to the drive shaft, through which the drive shaft between the first and the second clamping bolt 10 * , 1 1 * against a radial
- Clamping device also sealed towards the top against the through hole 5.
- the pressure or clamping force which is necessary to securely clamp the drive shaft, may be significantly higher than the sealing force.
- FIG. 4 further shows a fastening device 33 for secure attachment of the second clamping device 1 1 to the housing 2 of the clamping device 1.
- the rear free end (not visible) of the second clamping device 1 1 projects beyond the housing 2 after assembly.
- the outwardly projecting free end for example, also formed as a hexagon and can be adjusted by means of a corresponding rotary key. The adjustment causes a longitudinal displacement of the second clamping device 1 1 to the housing 2 of the clamping device 1.
- FIG. 5 shows another one
- Embodiment of a clamping device 1 a is associated with a hydraulic force increasing device 40.
- the hydraulic force increasing device 40 operates on a principle P (40), which is a modification of the known principle of a hydraulic booster.
- a conventional hydraulic booster a small movable piston in a small cylinder is connected to a large movable piston in a large cylinder via a pressure line.
- a small force applied to the small movable piston generates a large force on the large movable piston.
- Such a system can also be constructed without a pressure line and achieve the same desired effect. However, then a support of the entire system is necessary.
- Figure 5B illustrates the principle P (40) of a modified hydraulic
- Force increasing means as it is used in the clamping device 1 a.
- the small cylinder 44 is static and the small piston 45 is movably arranged.
- the large piston 47 is fixed or static and the large cylinder 46 instead is arranged to be movable.
- a support means 50 is here associated with the large, static piston 47 and the small static cylinder 44.
- the support device 50 is designed to be adjustable relative to the housing 2 of the clamping device 1 a in the form of a hollow spindle 50 * and can thus be used to adjust the second
- FIG. 6A shows the respective inwardly disposed free end regions 20, 30 of a first and a second clamping device 10, 11 with seals 8, 8 * , which are shown once again individually in FIG. 6B.
- the seals 8, 8 * run on the one hand transverse to the end faces of the free end portions 20, 30.
- the seals 8, 8 * formed so that they described in connection with Figures 3 and 4 conical notches, the contact surfaces 22, 32 of the clamping devices 10, 1 1 with form the drive shaft, reshape.
- This area is marked KB.
- the seals 8, 8 * on a lower portion UB, with which they seal the clamping devices 10, 1 1 opposite the second through-hole 6 downwards.
- Figures 7A and 7B show various schematic views of a
- the free end portion of a second clamping device may be formed, for example, analogous thereto.
- Figure 7A shows a
- the free end 20 includes a receiving device 55 for a module insert 60.
- the module insert 60 is arbitrarily exchangeable and prior to assembly of the clamping device 10b according to the intended use, in particular according to the weight of the drive shaft and other requirements the clamping device selected and mounted in the receiving device 55 of the free end portion 20.
- Figure 7C shows a top view of a single replaceable module 60 as seen from above. The concave shaped contact surface 22 for clamping the
- FIGS 8A and 8B show various schematic side views of free end portions 20b of axially clamping clamps (not shown) with a module insert 60b disposed in a receiver 55b of the free end 20b of the clamp 10b.
- the axial clamping module 60b has a first interior space 65 with at least one oblique side wall 66. According to the embodiment shown in FIG. 8B, both side walls 66a, 66b are aligned obliquely with respect to the longitudinal axis L of the drive shaft 70.
- the at least one oblique is aligned obliquely with respect to the longitudinal axis L of the drive shaft 70.
- Side wall 66 extends within the clamping device from top to bottom in the direction of the first vertical through hole parallel to the drive shaft 70 of
- first inner space 65 a plurality of rolling elements 67 arranged one above the other or obliquely one above the other.
- first clamping device 10b and the second clamping device are moved so close to the drive shaft 70 that the drive shaft 70 bears against the respective contact surfaces 22b, 32.
- the first clamping device 10b is moved up to the stop (see FIG. 1, reference numeral 9) and the drive shaft 70 is positively clamped between the concave indentations of the free end regions 20b, 30 of the clamping devices 10b, 11 (compare FIGS. 3, 4).
- the cross-sectional area of the first inner space 65 within the clamping device decreases from top to bottom.
- the diameter of the clamping or rolling elements 67 also decreases from top to bottom, that is to say the uppermost rolling element 67o is larger than the lowermost rolling element 67u.
- FIG. 9 shows a plan view of a first embodiment of a radially clamping clamping device 10c.
- the free end 20c of the clamping device 10c comprises a second inner space 70, which is arranged at least partially around the contact surface 22c for the drive shaft 70.
- rolling elements 71 are arranged side by side in a plane which runs at least substantially orthogonally to the longitudinal axis L of the drive shaft 70.
- the cross section of the second inner space 70 decreases counterclockwise GUZ and the diameter of the arranged in the second interior rolling elements 71 also decreases counterclockwise GUZ.
- the drive shaft 70 can be clamped radially and thus a further rotational movement of the drive shaft 70 can be prevented.
- the drive shaft 70 is clamped when it rotates counter to the intended direction of rotation for the pump drive rotary. in the
- Embodiment provided that the drive shaft 70 is additionally clamped radially when the two clamping devices 10c, 1 1 each in their second
- FIG. 10 shows a schematic view of a second embodiment of a radially clamping clamping device 10d.
- a second inner space 72 with rolling elements 73 is likewise provided on the inner free end 20d of the clamping device 10d.
- the cross-section of the second interior 72 decreases from the center in the clockwise direction UZ and counter to
- clamping elements 73M arranged in the middle region have a larger diameter than those in the respective outer ones
- Interior 72 also moves in a clockwise UZ or counterclockwise direction GUZ and at least a part of the rolling elements 73 jam in a
- Drive shaft 70 is effectively prevented in clockwise UZ or counterclockwise GUZ.
- FIGS. 11A and 11B show various schematic views of an embodiment of a clamping device 1e with two clamping means K1 and K2 and a sealing means D.
- FIG. 11A shows a schematic plan view from above
- FIG. 1B shows a schematic side view.
- the first clamping device K1 -1 and K2-1 and second clamping device K1 -2 and K2-2 or the first and second sealing means D1, D2 are each pairwise opposite each other in horizontally oriented, lateral
- each clamping means K1, K2 comprises a first clamping device K1 -1, K2-1 with stop, with which the drive shaft is spatially centered and a second clamping device K1 -2, K2-2, which is preferably provided with a hydraulic force increasing device and the actual working pressure , ie the clamping or pressure force generated.
- Figure 1 1 B illustrates that the total of three lateral through holes 6 each in different positions along the longitudinal axis Ls of the first
- Through holes 5 are arranged.
- the first through hole 5 is vertically aligned after mounting the clamping device 1 e on the riser.
- the other three lateral through holes 6 are arranged horizontally aligned.
- the other three are lateral
- the at least one lateral outflow bore 19 (see FIGS. 1 and 2) is not shown in this embodiment, but may be arranged at any position above the through hole 6D for the sealant D.
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Clamps And Clips (AREA)
- Jigs For Machine Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013108322.6A DE102013108322B4 (de) | 2013-08-02 | 2013-08-02 | Klemmvorrichtung und Verfahren zur ortsfesten Fixierung einer Antriebswelle |
PCT/DE2014/000396 WO2015018388A2 (de) | 2013-08-02 | 2014-07-31 | Klemmvorrichtung und verfahren zur ortsfesten fixierung einer antriebswelle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3027842A2 true EP3027842A2 (de) | 2016-06-08 |
Family
ID=51690776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14783761.1A Withdrawn EP3027842A2 (de) | 2013-08-02 | 2014-07-31 | Klemmvorrichtung und verfahren zur ortsfesten fixierung einer antriebswelle |
Country Status (7)
Country | Link |
---|---|
US (1) | US20160145955A1 (de) |
EP (1) | EP3027842A2 (de) |
CN (1) | CN105452595A (de) |
AU (1) | AU2014305136A1 (de) |
DE (1) | DE102013108322B4 (de) |
RU (1) | RU2016107972A (de) |
WO (1) | WO2015018388A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2571972B (en) * | 2018-03-14 | 2021-01-20 | Edwards Tech Vacuum Engineering Qingdao Co Ltd | Method and apparatus related to servicing of liquid ring pumps |
RU2724695C1 (ru) * | 2020-01-22 | 2020-06-25 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Превентор со сменным кольцом и способ его установки на опорном фланце устьевой арматуры |
RU2747903C1 (ru) * | 2020-11-11 | 2021-05-17 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Устройство для герметизации устья наклонной скважины при проведении спуско-подъёмных операций двухрядной колонны труб |
Family Cites Families (21)
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US1695992A (en) * | 1924-10-27 | 1928-12-18 | N W Hendershot | Combined casing-head packer and blow-out preventer |
NL16566C (de) * | 1924-12-22 | |||
US3748702A (en) * | 1972-06-15 | 1973-07-31 | C Brown | Automated pipe handling apparatus |
US5009289A (en) * | 1987-03-23 | 1991-04-23 | Cooper Industries, Inc. | Blowout preventer string support |
GB8814699D0 (en) * | 1988-06-21 | 1988-07-27 | Cooper Ind Inc | Emergency suspension system for drill casings |
US5575451A (en) * | 1995-05-02 | 1996-11-19 | Hydril Company | Blowout preventer ram for coil tubing |
CA2177629C (en) | 1996-05-29 | 1999-09-21 | Tony M. Lam | Wellhead production blowout preventer ram |
US5875841A (en) | 1997-04-04 | 1999-03-02 | Alberta Basic Industries, Ltd. | Oil well blow-out preventer |
US6412554B1 (en) * | 2000-03-14 | 2002-07-02 | Weatherford/Lamb, Inc. | Wellbore circulation system |
US6557643B1 (en) * | 2000-11-10 | 2003-05-06 | Weatherford/Lamb, Inc. | Rod hanger and clamp assembly |
CN2551759Y (zh) * | 2002-05-23 | 2003-05-21 | 河北华北石油荣盛机械制造有限公司 | 一种钻井用闸板防喷器 |
US7000888B2 (en) * | 2004-03-29 | 2006-02-21 | Gadu, Inc. | Pump rod clamp and blowout preventer |
CN2777191Y (zh) * | 2005-01-10 | 2006-05-03 | 河北华北石油荣盛机械制造有限公司 | 侧开窗式闸板防喷器 |
US7673674B2 (en) * | 2006-01-31 | 2010-03-09 | Stream-Flo Industries Ltd. | Polish rod clamping device |
US20080078965A1 (en) * | 2006-09-28 | 2008-04-03 | Weatherford/Lamb, Inc. | Blowout preventer and pump rod clamp |
NO334547B1 (no) * | 2008-06-18 | 2014-04-07 | Nat Oilwell Varco Norway As | Hydraulisk klemanordning |
CN201241656Y (zh) * | 2008-08-12 | 2009-05-20 | 颜廷杰 | 单层腔室结构的双闸板防喷器 |
CN101660395A (zh) * | 2008-08-30 | 2010-03-03 | 江苏省金峰石油机械制造有限公司 | 手动多功能热采防喷器 |
CN201297150Y (zh) * | 2008-11-13 | 2009-08-26 | 盐城市大冈石油工具厂有限责任公司 | 多功能三闸板防喷器 |
CN201560737U (zh) * | 2009-12-18 | 2010-08-25 | 沈阳新蓝天科技实业有限公司 | 液动、手动两用闸板防喷器 |
US20160215575A1 (en) * | 2015-01-22 | 2016-07-28 | Weatherford Technology Holdings, Llc | Rod Suspension System for Integrated Wellhead |
-
2013
- 2013-08-02 DE DE102013108322.6A patent/DE102013108322B4/de active Active
-
2014
- 2014-07-31 CN CN201480044707.0A patent/CN105452595A/zh active Pending
- 2014-07-31 AU AU2014305136A patent/AU2014305136A1/en not_active Abandoned
- 2014-07-31 WO PCT/DE2014/000396 patent/WO2015018388A2/de active Application Filing
- 2014-07-31 RU RU2016107972A patent/RU2016107972A/ru not_active Application Discontinuation
- 2014-07-31 EP EP14783761.1A patent/EP3027842A2/de not_active Withdrawn
-
2016
- 2016-02-01 US US15/012,298 patent/US20160145955A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2015018388A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102013108322A1 (de) | 2015-02-19 |
WO2015018388A3 (de) | 2015-06-18 |
RU2016107972A (ru) | 2017-09-15 |
AU2014305136A1 (en) | 2016-02-25 |
WO2015018388A2 (de) | 2015-02-12 |
CN105452595A (zh) | 2016-03-30 |
WO2015018388A9 (de) | 2015-04-30 |
US20160145955A1 (en) | 2016-05-26 |
DE102013108322B4 (de) | 2015-07-16 |
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