CN101675213A - Ram bop position sensor - Google Patents
Ram bop position sensor Download PDFInfo
- Publication number
- CN101675213A CN101675213A CN200880005319A CN200880005319A CN101675213A CN 101675213 A CN101675213 A CN 101675213A CN 200880005319 A CN200880005319 A CN 200880005319A CN 200880005319 A CN200880005319 A CN 200880005319A CN 101675213 A CN101675213 A CN 101675213A
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- China
- Prior art keywords
- flashboard
- relative position
- preventer
- ram
- magnetostrictive sensor
- 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.)
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B33/063—Ram-type blow-out preventers, e.g. with pivoting rams with sliding rams for shearing drill pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Abstract
A method to determine movement of a wellhead component includes sensing a relative position of the wellhead component with a magnetostrictive sensor over a selected interval of time. The method includes sending a signal from the magnetostrictive sensor to a data acquisition device and recording the relative position of the wellhead component with the data acquisition device with respect to the selected interval of time. Further, the method includes comparing the recorded position of the wellhead component with operations data to determine if the relative position is desirable.
Description
Technical field
[0001] embodiment disclosed herein relates generally to the instrument of ram preventer.More specifically, embodiment disclosed herein relates to the position of flashboard in the ram preventer, the direct measurement of speed and rate of motion.
Background technology
[0002] well control is an importance of oil-gas exploration.For example, when drilling well, safety means must be in place to prevent injury to personnel and device that the accident relevant with the drilling well activity causes impaired.
[0003] drilling process comprises and penetrates various underground geologic structures or " layer ".Sometimes well can penetrate and form pressure and roughly be higher than in the layer that well keeps pressure.When this happens, this mouthful well just b referred to as " well kick " has taken place.The well that flows into the fluid (can be liquid, gas or both mixing) that forms can cause pressure to increase usually and be attended by well kick.The well kick of higher pressure can make progress from the inlet point of well along wellhole (from the higher-pressure region to low-pressure area) propagate.If allow well kick to propagate into ground surface, drilling fluid, well tool and other drilling equipments will be ejected well.This " blowout " can cause serious damage or cause drilling implementer's injures and deaths drilling rig (for example comprising rig).
[0004] because the danger of blowout is arranged, therefore more than the well head in ground surface or deepwater drilling equipment seabed, installs and be known as the equipment of preventer, control well kick up to carrying out effective measures so that seal well effectively.Preventer can be activated and make well kick fully be controlled and make its from system " to outer circulation ".The preventer that several types is arranged, wherein the most commonly used is ram preventer and annular preventer (comprising spherical blow-out preventer).
[0005] ram preventer typically has the body cover cap relative with at least one pair of level.Cover cap passes through to center on for example bolt of its periphery to body usually.Replacedly, cover cap can make cover cap can be rotated a side and safeguard by hinge and bolt to body.The inside of each cover cap is the flashboard of piston actuated.Flashboard can be tubular type flashboard (during startup, moves to drilling pipe and well tool and engage and surround drilling pipe and well tool with the sealing well), or shear ram (during startup, move to well in any drilling pipe or the well tool engages and it is carried out the physics shearing).Or blank ram (during startup, sealing wellhole) as gate valve.Flashboard is typically located toward each other, no matter is the tubular type flashboard, and shear ram or blank ram, flashboard typically recline mutually near the well center and seal, thereby seal up well fully.
[0006] flashboard is made of steel substantially and is provided with elastomeric element on sealing surfaces.Ram blocks (ram block) can be used for allowing the various structures of its sealing well.The tubular type flashboard typically has the circular open corresponding to the pipe diameter in the hole in the centre, thereby seals up well when pipe is in hole; Yet these tubular type flashboards can only effectively seal narrow pipe diameter.Variable wellhole flashboard is designed to seal wider pipe diameter.Various ram blocks also can be changed in preventer, are that the preventer structure is optimized in particular bore cavity portion or ongoing work to allow the well operator.The example of ram blowout preventer is in U.S. Patent No. 6,554,247, No.6, and 244,560, No.5,897,094, No.5 is disclosed in 655,745, and No.4,647,002, and wherein each patent is all incorporated into this paper by reference in full.
[0007] knows that hole condition is very important for operate as normal that keeps well and prediction with the generation problem.By these parameters, thereby well can more effectively be monitored and can be kept safe condition.In addition, when detecting dangerous situation, well can manually or automatically begin to close in good time.For example, unsafe situation can be indicated or predict to pressure and the temperature pick up in the transducers blowout preventer cavities.These and other signals are presented on the console of well operator use as control signal.For example, the well operator can be by regulating the velocity of rotation of drilling pipe, the downward pressure on the drill bit and the circulation pump of drilling fluid and influence the situation of well.In addition, when ram block is closed in hope, know exactly that for the operator position of each flashboard is of great use.
[0008] a kind of equipment of the signal indication of adopting in the past of sending the parts relative position that is arranged in sealing shell (may not be the preventer housing) is potentiometric transducer.This equipment adopts one or more sensor, and this sensor is wearing and tearing and inaccurate under adverse circumstances easily.And no matter this sensor is easily from whether lift on tracked surface, this has caused not preparing.Also have, the loss of power often causes the reading of distortion, because these equipment work will special revolution or incrementally add deduct before value of the wire portion section value of being correlated with.And for example these equipment is well-known relatively poor speeder.Therefore, potential measurement is otiose for the location parameter of accurately determining ram movement.In addition, potentiometric transducer is not suitable for high-speed applications, so potentiometric transducer seldom uses or do not use in the flashboard monitoring is used.
[0009] in addition, the measurement mechanism that increases progressively of only measuring intermediary movements has following inherent defect: when taking place, power failure must be reset to baseline, and the accuracy that do not have of following the continuous measurement generation.
[0010] in order to improve the degree of accuracy of measuring the flashboard position, magnetostrictive sensor is used to monitor and/or control the position of flashboard.As the U.S. Patent No. 5,320,325 and the No.5 that incorporate into by reference, 407,172 is described, the piston actuated arm of flashboard and the fixing parallel placement of magnetisable waveguide.Magnet assembly is around waveguide and be attached to bracket arm, and described bracket arm is attached to piston tail.
[0011] in U.S. Patent No. 7,023, in 199,7,121,185 and 6,509,733, magnetostrictive sensor is installed in the inside opening of sensor ports.Sensor has the pressure pipe in the bar passage that the inner chamber that extends to piston only and telescopically be contained in piston and bar assembly.
[0012] in above-mentioned each patent, the location of magnetostrictive sensor is not best.For example, in U.S. Patent No. 7,023, in 199,, on the sensor unit, safeguard to necessarily require flashboard not work because sensor extends in the chamber of cylinder body.Although do not enter in the chamber of cylinder body, the attached meeting of the bracket arm in sensor and the use U.S. Patent No. 5,320,325 causes the inaccurate measurement of flashboard position and can increase the manufacturing cost of ram preventer.
[0013] therefore, the present invention is characterised in that provides a kind of accurate measurement ram block or the location of flashboard piston or the modifying device of position.
[0014] therefore, need a kind of accurate measurement ram block or the location of flashboard piston or the modifying device of position.
Summary of the invention
[0015] on the one hand, the disclosure relates to the method that a kind of monitoring is applied to the cylinder pressure on the ram block, and described method comprises: with the relative position of magnetostrictive sensor sensing ram block; To be sent to data acquisition equipment from the signal of magnetostrictive sensor; Be applied to cylinder pressure on the flashboard with pressure sensor device sensing; To be sent to data acquisition equipment from the signal of pressure sensor device; And with the cylinder pressure that sense of data acquisition equipment record as the function of the relative position that senses.
[0016] on the other hand, the disclosure relates to a kind of method of testing the preventer parts, and described method comprises carries out loop test to preventer; In loop test, also write down the cylinder pressure that is applied on the ram block in the select location sensing; And in loop test with the magnetostrictive sensor sensing and write down the flashboard position.
[0017] on the other hand, the disclosure relates to a kind of method of definite wellhead component motion, and described method comprises the relative position with the described wellhead component of magnetostrictive sensor sensing; To be sent to data acquisition equipment from the signal of magnetostrictive sensor; With respect to the selected time interval, with the relative position of data acquisition equipment record wellhead component; Whether and comparing the position of wellhead component of record with definite relative position with operational data is desired.
[0018] on the other hand, the disclosure relates to a kind of ram blowout preventer, and it comprises body; Pass the vertical hole of body; With the crossing lateral aperture that passes body in vertical hole; Place a pair of flashboard assembly of the lateral aperture of body opposite side, wherein flashboard assembly be applicable to controllably horizontal movement to vertical hole and from vertical hole controllably horizontal movement go out, wherein each flashboard assembly comprises hydraulic piston, this piston is connected to ram blocks at first end, is connected to piston tail at second end; Extend into the magnetostrictive waveguide pipe in the hole of at least one piston tail; Place the permanent magnet at least one piston tail; The magnetostrictive waveguide pipe comprises lead to receive the interrogation pulse from sensor, and wherein interrogation pulse is in response to the relative position generation spiral inverse signal of permanent magnet about waveguide; Wherein sensor configuration is used to receive spiral inverse signal and the output ram blocks position corresponding at least one piston tail.
[0019] on the other hand, the disclosure relates to a kind of method of relative position of definite flashboard, and described method is included in the magnetostrictive waveguide pipe that is bonded with each other in the hole of piston tail; Part with at least one permanent magnet longitudinal magnetization waveguide of being fixed to piston tail; The lead that is positioned at the waveguide inboard is imposed pulse to produce the toroidal magnetic field, wherein when the toroidal magnetic field runs into waveguide longitudinal magnetization part, produce inverse signal; And determine the relative position of flashboard from inverse signal.
[0020] on the other hand, the disclosure relates to a kind of method of adding instrument to ram preventer, and described method comprises removes cylinder head enclosure; Remove piston tail from the hydraulic pressure gate piston; The piston tail of changing is installed, and the piston tail of described replacing comprises the hole; The cylinder head enclosure of changing is installed, and the cylinder head enclosure of described replacing comprises instrument port; Magnet assembly is attached to piston tail; And from the cylinder head enclosure of changing, make magnetostrictive sensor be configured to engage along with the hydraulic pressure gate reciprocating motion of the pistons and break away from the piston tail hole magnetostrictive sensor setting.
[0021] according to following description and claims, it is clearer that other aspects of the present invention and advantage will become.
Description of drawings
[0022] Fig. 1 shows the partial sectional view of the ram preventer of prior art.
[0023] Fig. 2 is the sectional view according to the ram preventer cover assembly of embodiment disclosed herein.
[0024] Fig. 3 is the detailed view of a part of the ram preventer cover assembly of Fig. 2.
[0025] Fig. 4 has described a width of cloth curve map, and it has shown cylinder pressure as the function of ram gap according to embodiment of the present disclosure.
The specific embodiment
[0026] on the one hand, embodiment disclosed herein relates to ram preventer, and it comprises the instrument that is used for determining preventer inner brake Board position.Another aspect, embodiment disclosed herein relates to the position that is used for determining the ram preventer flashboard, speed, or close the method for rate.
[0027] Fig. 1 shows ram blowout preventer 10.Shown in well casing 12 pass the vertical hole 14, center of preventer 10 bodies 16, described well casing 12 can be and is positioned at by the part of the drill string at drilling well top or is the part of the flow string of the well under oil or the gas product.Body 16 can comprise transverse to hole 14, relative horizontal channel 18.The horizontal channel can extend out to the cover cap 17 that is connected to body 16.What work in passage 18 is the flashboard 20 that is driven by the hydraulic piston in cylinder sleeve 23 separately 22, and described cylinder sleeve 23 is arranged in the hydraulic cylinders separately 19 that cover cap 17 outwards connects.Thereby piston 22 can make flashboard 20 move back and forth in horizontal channel 18 with respect to the surface of pipeline 12 and open or close packer or wear-resistant gasket 24 on 20 on flashboard.Hydraulic fluid connecting portion (not shown) is worked with location flashboard 20 together with opening chamber 25 and close chamber 26.
[0028] as shown, ram preventer 10 can comprise the afterbody part 28 that is connected to piston 22.The afterbody 28 of piston 22 moves back and forth in cylinder cap 30, but described cylinder cap 30 bolts connect or are otherwise connected to cylinder body 19.
[0029] as mentioned above, hope is known the position of flashboard 20 or is flashboard 20 location.This can be by realizing the magnetostrictive sensor positioning parts in hydraulic cylinder closure member (it is connected to cylinder body shown in Figure 1 19).Those skilled in the art will recognize that embodiment disclosed herein can be widely used in any ram blowout preventer, even be applied even more extensively in the equipment of any employing flashboard.
[0030] Fig. 2 and 3 shows cylinder cap and the sensor equipment according to embodiment disclosed herein.Cylinder cap 30 can be by being threaded, welding, and flange connects or any other connection as known in the art and be connected to cylinder body 19.Piston 22 (illustrating in its position of opening fully) can be connected to piston tail 28, and described piston tail 28 has the piston tail hole 32 that extends through piston tail 28 to small part.Magnet assembly 38 is can be with piston tail 28 concentric and be attached to piston tail 28 (being non magnetic screw in certain embodiments) by screw 40.Packing ring 42 (for example O type packing ring) can be placed between magnet assembly 38 and the piston tail 28.
[0031] magnet assembly 38 can comprise two or more permanent magnets.In certain embodiments, magnet assembly 38 comprises three magnets; Then comprise four magnets in other embodiments, then can comprise more than four magnets in a further embodiment.
[0032] Gu Ding waveguide 44 can be positioned at cylinder cap 30, and can extend partially into the piston tail hole 32 of piston tail 28 at least.Preferably, thus piston tail 28 radially separates the motion of not disturbing piston 22 with waveguide 44 or causes wearing and tearing on the waveguide 44.Similarly, magnet assembly 38 can radially separate with waveguide 44.In selected embodiment, the magnet of magnet assembly 38 can be in the plane transverse to waveguide 44.
[0033] in addition, conducting element or lead (not shown) can be positioned to pass the center of waveguide 44.Lead and waveguide can be connected to by communications ports 48 and be positioned at cylinder cap 30 sensor external 46.Sensor 46 can comprise that also guiding line sends the suitable device of inquiry current impulse.
[0034] the O type ring between cylinder cap 30 and hydraulic cylinder 19 is salable with leakage-preventing.O type ring also can be used for sealing being connected between communications ports 48 and the sensor 46.
[0035] when flashboard 20 axially-movables, piston tail 28 and the identical amount of magnet assembly 38 axially-movables.Therefore, by the work of the magnetostrictive sensor that is placed in one, can on continuous basis, determine the position of flashboard 20.
[0036] about the work of magnetostrictive sensor, magnetostriction refers to some metals (for example iron or nickel or iron-nickel alloy) and can stretch or shrink in being placed in magnetic field the time.When magnet assembly 38 during about waveguide 44 longitudinal translations, magnetostrictive waveguide pipe 44 externally can have the longitudinal magnetization zone in the magnet assembly 38.As mentioned above, magnet assembly 38 comprises permanent magnet, and described permanent magnet can be positioned in transverse to the plane of waveguide 44 on the even interval location spaced apart from each other, and with respect to waveguide 44 radial surface spaced at equal intervals.But magnet assembly 38 has produced the external magnetic field in longitudinal magnetization waveguide 44 certain zones.
[0037] waveguide 44 is around the lead (not shown) along its axis location.This lead can periodically be imposed pulse or be inquired with electric current in mode well known in the art, for example by being positioned at the sensor 46 in closure member 30 outsides.This electric current has produced the toroidal magnetic field around lead and waveguide 44.When intersect in the magnetic field that toroidal magnetic field and magnet assembly 38 are produced, in waveguide 44, sense helical magnetic field, thereby produced the sound wave pulse of propagating to waveguide 44 two ends.Can prevent the generation of the echo reverberation of pulse at the suitable damper (not shown) of waveguide 44 ends.Yet at sensor end or head, helicon is converted into Wave guide twist, and it is applied to lateral stress on the extremely thin magnetostriction band that is connected to waveguide 44.The magnet magnetic linkage that the phenomenon that is known as Villari effect causes passing sensing coil by described with on the propagation stress wave upset and the cross-line circle produces voltage.Sensor 46 also can increase this voltage in order to measure or control purpose.
[0038] because current impulse with near light velocity propagation, and sound wave pulse is only propagated with the general velocity of sound, compares the time that the head end electronic equipment produces electric pulse, the head end sensor receives between moment of each pulse life period at interval.This time interval is the function of external magnets assembly 38 from the distance of the sensor side of pipe.By careful measuring intervals of TIME and divided by the propagation rate of pipe, can determine the absolute distance of magnet assembly from the head end of pipe.
[0039] under the situation of dropout, information is not lost, thereby any reading does not need to make zero again or reset again.Reading is determined with respect to the position of sensor 46 by magnet assembly 38 fully.
[0040] by having known the absolute position of flashboard, just can determine whether flashboard closes fully, and whether flashboard is lifted, and what degree the packer of flashboard front or wear-resistant gasket may wear to, and the recoil in the piston mechanism or may wear to what degree.By continuous interrogation pulse, can measure piston shutdown rate or speed, and the rate of motion of piston or the acceleration and the rate of deceleration.
[0041] the translation gap between the relative flashboard of this paper employed " ram gap " level of referring to preventer.In the embodiment that selects, ram gap can be calculated and record by the absolute position (thereby making that the relative distance between flashboard is calculated) of determining each flashboard.In the embodiment that selects, the ram block position can be used and is similar to cylinder body shown in Fig. 2 and 3 and sensor equipment, or uses any other instrument mechanism as known in the art and determine.In addition, the relative position of flashboard can be sent to the data acquisition equipment that can be used for calculating and writing down ram gap.In selected embodiment, ram gap can be quantized by the spacing distance between two flashboards measuring or calculate (for example inch, centimetre etc.).
[0042] in addition, this paper employed " cylinder pressure " refers to the hydraulic pressure value that is applied on the piston, and described piston is arranged to closes ram block.Like this, can (for example in different ram gap) measure cylinder pressure value and record in each position.Like this, can comprise pressure transducer according to the preventer of embodiment disclosed herein or be arranged to any other equipment of sensing cylinder pressure.In addition, the pressure sensor device can transmit a signal to data acquisition equipment to be recorded in the cylinder pressure of select location.
[0043] replacedly, the power sensor can be used for providing and write down actual ram force, and wherein ram force is the function of cylinder pressure.For purpose of the present disclosure, cylinder pressure and ram force are used interchangeably, because ram force may be defined as the cross-sectional area that cylinder pressure multiply by the flashboard piston.
[0044] referring now to 4, show a width of cloth curve map, it shows cylinder pressure as the function of ram gap according to embodiment of the present disclosure.Data shown in Figure 4 are to observe when shearing the cable of different shape and size and pipe with ram block.These data can use aforesaid any equipment and method to measure and record.Comprise data point and curve in the curve map, and help to understand the ambient conditions of closing flashboard around object.
[0045] curve is that the data point that observes when shearing various cables and pipe with ram block is formed.Curve 100 shows the data that shear joint (Shear Sub) observed when shearing with new " ram blocks ", and wherein ram blocks is the parts that are attached to flashboard, and described flashboard configuration is used to shear the object that extends through preventer.The data that observe when similarly, curve 200 shows and with the ram blocks of having used shear joint sheared.The data that the data that curve 300 has observed when having described to shear 5.5 inches thick-walled pipes, curve 500 have observed when having described with 3.5 inches pipes of preventer shearing and cable.At last, curve 600 shows with preventer and shears the data that observe when having only cable.
[0046] in addition, the data point of curve map reflection can represent that some incident takes place when ram block is closed around object.In particular, cylinder pressure began to close the position of pressure above the operator after data point 401 was illustrated in the contact object.As directed in addition, data point 402 can be represented the cylinder pressure that the pipe and/or the cable of preventer are passed in the needs shearing in the curve map.In addition, data point 402 can be represented the position of the flashboard when being sheared when pipe and/or cable.This paper employed " shear pressure " is the cylinder pressure value that need begin to shear pipe and/or cable.Data point 403 can be represented the position of flashboard contact flexible member (for example seal).Data point 404 can be represented position and the cylinder pressure when flashboard is in contact with one another.Data point 405 can be represented to contact the cylinder pressure that begins to increase with seal from flashboard, means that thus flashboard cuts out fully.
[0047] in one embodiment, preventer can comprise that being similar to the cylinder body shown in Fig. 2 and 3, flashboard and sensor equips.Preventer can carry out loop test by repeatedly opening and closing flashboard.Once circulation can comprise and opens and closes flashboard fully once.Loop test is a method as known in the art, and it can be used for assessing the reliability of tested parts.When preventer carries out loop test, be included in the data of the cylinder pressure of select location (that is ram gap) can be in each circulation measured and record.How these data can be reacted in circulation with demonstration preventer parts (for example, seal, packer, wearing plate and locking mechanism) by compiling or move then.This data can be used for determining when needs replacing or reforming part.The reason of changing the preventer parts can include, but not limited to excessive recoil and wearing and tearing.
[0048] other wellhead component can be subjected to the influence of prolonged exercise in the industry.Wellhead component can comprise for example wellhead connector, failsafe valve, and capsule voussoir (pod wedge), the current divider locking piece piles up the accumulation bottle of installation, and any other parts known in the art.In one embodiment, comprise that the sensor equipment of magnetostrictive sensor can be used for the position of definite at least one wellhead component.Magnetostrictive sensor can send signal to data acquisition equipment, and data acquisition equipment can write down the position of described at least one wellhead component then.Magnetostrictive sensor can send a plurality of signals to data acquisition equipment in the selected time interval, indicates any motion of wellhead component in the selected time interval thus.
[0049] also needs to add instrument to existing ram preventer.In order to add instrument to existing ram preventer, can only change or transform the part of ram preventer, make it comprise the cost that instrument is required to reduce the upgrading existing equipment.For example, can be by only changing or transform cylinder head enclosure and piston tail to add instrument to existing ram preventer.
[0050] existing cylinder head enclosure and piston tail can be removed.The piston tail of removing can be transformed into to be had the centre bore that is used for instrument and is attached to hydraulic piston again, or is transformed into the new piston tail with centre bore that can be attached to hydraulic piston.Similarly, cylinder head enclosure can be transformed into and comprise instrument port, or is transformed into the new cylinder head enclosure with instrument port that can be connected to the ram preventer body.Magnet assembly can be attached to the piston tail with centre bore, and as mentioned above, magnetostrictive sensor can place the centre bore of piston tail at least in part.
[0051] adds after the instrument, need calibration magnetostrictive sensor opening fully and complete fastening position to flashboard.In addition, be used for determining that the instrument of flashboard position can be operably connected to numerical control system.This numerical control system can be used for showing and/or control the position of flashboard based on the signal of telecommunication monitoring from magnetostrictive sensor then.
[0052] advantageously, embodiment disclosed herein can be ram preventer the easy-on instrument is provided, and it can measure position, speed and the acceleration of flashboard exactly.In addition, embodiment disclosed herein can not enter in the hydraulic cylinder body cavity, and this can provide extra advantage.
[0053] in addition, embodiment disclosed herein can allow the flexibility of ram preventer parts, provides the consistent of ram preventer to construct simultaneously.For example, the customer may wish that ram preventer has instrument or do not have instrument.The integrality that connects the bar of flashboard and piston does not have to suffer damage at (the endoporus place that sensor places bar) owing to the existence of the endoporus of placing sensor, no matter therefore use and do not use the bar of instrument not need to strengthen or transform.In addition, can easily exchange for cylinder cap and the afterbody that instrument provided with cylinder cap that instrument port is not provided and afterbody.In this way, parts are interchangeable, and existing ram preventer can easily be transform as comprises instrument, and the customer will have the flexibility of product selection and not worry inconsistent manufacturing.
[0054] embodiment disclosed herein can advantageously provide the method that is used to test and monitor the preventer parts, thereby detects and/or prevent potential problem or hidden danger (issues) in the work.For example, embodiment disclosed herein can provide a kind of in the locking mechanism of flashboard the method for sense backlash.In addition, embodiment disclosed herein can provide a kind of test and measure application life and/or the maintenance time method at interval that is included in some parts (for example, seal, packer, locking mechanism) in the preventer.In addition, embodiment disclosed herein can provide a kind of method that detects wearing and tearing before preventer work or in the work and/or disturb hidden danger.
[0055] in addition, thus embodiment disclosed herein can advantageously provide the long-time make position of record is estimated residual life with icon for rubber components method and apparatus.In addition, embodiment disclosed herein can be provided at and monitor the preventer component locations in seal process and the test process to determine how elastic sealing element acts on and reaction makes elastic body design improvable apparatus and method.In addition, embodiment disclosed herein can provide and determine when that pipe sheared by ram preventer, thereby influences the method and apparatus of the requirement of accumulator.
[0056] and, embodiment disclosed herein can be used for the motion of piston in the annular preventer.This embodiment can comprise that the use location indicator is to determine the wearing plate and the replacing time interval that is used for the packing unit of annular preventer.In addition, embodiment disclosed herein can be used for stacked components, and it includes, but not limited to wellhead connector, failsafe valve, capsule voussoir, current divider locking piece and pressure accumulation bottle.
[0057] although the present invention is described about the embodiment of limited quantity, those skilled in the art will recognize that of benefiting from the disclosure can be designed other embodiment, only otherwise break away from scope of the present invention disclosed herein.Therefore, scope of the present invention should only be limited by claims.
Claims (35)
1. a monitoring is applied to the method for the cylinder pressure on the flashboard of preventer, and described method comprises:
Relative position with the described flashboard of the described preventer of magnetostrictive sensor sensing;
To be sent to data acquisition equipment from the signal of described magnetostrictive sensor;
Be applied to cylinder pressure on the described flashboard with pressure sensor device sensing;
To be sent to described data acquisition equipment from the signal of described pressure sensor device; And
Utilize described data acquisition equipment that the cylinder pressure that senses is carried out record as the function of the relative position that senses.
2. method according to claim 1 comprises the relation of utilizing described data acquisition equipment to show described cylinder pressure that senses and described flashboard position with graph mode.
3. method according to claim 1 further comprises:
Inspection is by the data of described data acquisition equipment record; And
Determine whether described flashboard closes when described cylinder pressure reaches certain value.
4. method according to claim 3 is characterized in that fastening position comprises about 0 inch ram gap.
5. method according to claim 1 further comprises: the described cylinder pressure that is recorded according to the function as the relative position of described flashboard is determined the remaining life of packer component of the described flashboard of described preventer.
6. method according to claim 1 further comprises: determine according to the described cylinder pressure that the function as the relative position of described flashboard is recorded when the pipe between described flashboard is sheared.
7. method according to claim 1 further comprises: the described cylinder pressure that is recorded according to the function as the relative position of the described flashboard on the seclected time section is determined the maintenance time interval of described preventer parts.
8. method of testing the parts of preventer, described method comprises:
Described preventer is carried out loop test;
In described loop test, also write down the cylinder pressure that is applied on the described ram block at the select location sensing;
In described loop test with the magnetostrictive sensor sensing and write down the flashboard position.
9. method according to claim 8 further comprises: whether the cylinder pressure at select location place of record is compared with operational data needs repairing with definite parts.
10. method according to claim 8 further comprises: whether compared with operational data in the flashboard position at select location place of record needs repairing with definite parts.
11. the method for a definite wellhead component motion, described method comprises:
Utilize the relative position of the described wellhead component of magnetostrictive sensor sensing;
To be sent to data acquisition equipment from the signal of described magnetostrictive sensor;
With respect to the selected time interval, utilize described data acquisition equipment to write down the relative position of described wellhead component; And
Whether compare the position of described wellhead component of record with definite described relative position with operational data is desired.
12. method according to claim 11 is characterized in that, described wellhead component is a ram block.
13. method according to claim 12 further comprises: the described relative position that utilization is sensed by described magnetostrictive sensor detects the recoil in the described ram block.
14. method according to claim 11 is characterized in that, described wellhead component is the annular preventer piston.
15. method according to claim 14 further comprises: determine the time interval that wearing plate is changed according to the described relative position that writes down on the interval in seclected time by described data acquisition equipment.
16. method according to claim 11 is characterized in that, described wellhead component is selected from the group that constitutes with lower member: wellhead connector, failsafe valve, capsule voussoir, current divider locking piece and pile up the accumulation bottle of installation.
17. method according to claim 11 further comprises: the remaining life of determining described wellhead component according to the described relative position that writes down on the interval in seclected time by described data acquisition equipment.
18. method according to claim 11 further comprises: the maintenance time interval of determining described wellhead component according to the described relative position that writes down on the interval in seclected time by described data acquisition equipment.
19. a method of monitoring the relative position of ram block, described method comprises:
Utilize the relative position of the described flashboard of the described preventer of magnetostrictive sensor sensing;
To be sent to data acquisition equipment from the signal of described magnetostrictive sensor; And
Utilize described data acquisition equipment that the relative position that senses is carried out record as the function of time.
20. method according to claim 19 further comprises: the relative position according to the described flashboard that is sensed by described magnetostrictive sensor detects the flashboard recoil.
21. method according to claim 20 further comprises: recoiling in response to detected flashboard increases cylinder pressure.
22. method according to claim 20 further comprises: the remaining life of packer component that recoils to determine the described flashboard of described preventer according to detected flashboard.
23. method according to claim 19 is characterized in that, described flashboard relative position relative to each other is registered as ram gap.
24. a ram blowout preventer comprises:
Body;
Pass the vertical hole of described body;
With the crossing lateral aperture that passes described body in described vertical hole;
On the opposite side of described body, place a pair of flashboard assembly of lateral aperture, wherein said flashboard assembly be suitable for controllably horizontal movement to described vertical hole and from described vertical hole controllably horizontal movement go out, wherein each flashboard assembly comprises hydraulic piston, it is connected to ram blocks at first end, is connected to piston tail at second end;
Extend into the magnetostrictive waveguide pipe in the hole of at least one piston tail;
Place the permanent magnet on described at least one piston tail; And
Described magnetostrictive waveguide pipe comprises lead to receive the interrogation pulse from sensor, and wherein said interrogation pulse is in response to the relative position generation spiral inverse signal of described permanent magnet about described waveguide;
Wherein said sensor is configured to receive described spiral inverse signal and the output ram blocks position corresponding to described at least one piston tail.
25. ram blowout preventer according to claim 24 is characterized in that, described magnetostrictive waveguide pipe is by longitudinal magnetization.
26. ram blowout preventer according to claim 24 is characterized in that, described interrogation pulse produces the toroidal magnetic field around lead.
27. ram blowout preventer according to claim 26 is characterized in that, described spiral inverse signal produces in response to the interaction in the longitudinal magnetization zone of described toroidal magnetic field and described waveguide.
28. the method for the relative position of a definite flashboard, described method comprises:
The magnetostrictive waveguide that in the hole of piston tail, is bonded with each other pipe;
Utilization is fixed to the part of the described waveguide of at least one permanent magnet longitudinal magnetization of described piston tail;
The lead that is positioned at described waveguide inboard is imposed pulse to produce the toroidal magnetic field, wherein generation inverse signal when described toroidal magnetic field runs into described waveguide longitudinal magnetization part;
Determine the relative position of described flashboard from described inverse signal.
29. method according to claim 28 further comprises: the described inverse signal of sensing is to determine the speed of described flashboard on a time period.
30. method according to claim 29 further comprises: the rate of closing of determining described flashboard.
31. the method to ram preventer increase instrument, described method comprises:
Remove cylinder head enclosure;
Remove piston tail from the hydraulic pressure gate piston;
The piston tail of changing is installed, and the piston tail of described replacing comprises the hole;
The cylinder head enclosure of changing is installed, and the cylinder head enclosure of described replacing comprises instrument port;
Magnet assembly is attached to described piston tail; And
With the magnetostrictive sensor setting from the cylinder head enclosure of described replacing, thereby make that described magnetostrictive sensor is configured to engage and break away from described piston tail hole along with described hydraulic pressure gate reciprocating motion of the pistons.
32. method according to claim 31 further comprises: calibrate described magnetostrictive sensor with the fully open position of indicating described flashboard and the complete fastening position of described flashboard.
33. method according to claim 31 further comprises:
Described magnetostrictive sensor is operably connected to numerical control system; With
Utilize described magnetostrictive sensor to determine the position of described flashboard.
34. method according to claim 33 further comprises: the position that shows described flashboard based on the signal of telecommunication from described magnetostrictive sensor.
35. method according to claim 33 further comprises: based on the position of controlling described flashboard from the signal of telecommunication of described magnetostrictive sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710679846.6A CN107575182A (en) | 2007-02-16 | 2008-02-13 | Ram bop position sensor |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/675,861 US7832706B2 (en) | 2007-02-16 | 2007-02-16 | RAM BOP position sensor |
| US11/675,861 | 2007-02-16 | ||
| US12/026,851 US7980305B2 (en) | 2007-02-16 | 2008-02-06 | Ram BOP position sensor |
| US12/026,851 | 2008-02-06 | ||
| PCT/US2008/053840 WO2008101005A1 (en) | 2007-02-16 | 2008-02-13 | Ram bop position sensor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679846.6A Division CN107575182A (en) | 2007-02-16 | 2008-02-13 | Ram bop position sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101675213A true CN101675213A (en) | 2010-03-17 |
| CN101675213B CN101675213B (en) | 2017-09-15 |
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ID=39690507
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679846.6A Pending CN107575182A (en) | 2007-02-16 | 2008-02-13 | Ram bop position sensor |
| CN200880005319.6A Active CN101675213B (en) | 2007-02-16 | 2008-02-13 | Ram bop position sensor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710679846.6A Pending CN107575182A (en) | 2007-02-16 | 2008-02-13 | Ram bop position sensor |
Country Status (10)
| Country | Link |
|---|---|
| KR (1) | KR101526612B1 (en) |
| CN (2) | CN107575182A (en) |
| AR (1) | AR065366A1 (en) |
| AU (1) | AU2008216253B2 (en) |
| CA (3) | CA2677653C (en) |
| EA (1) | EA014181B1 (en) |
| MX (1) | MX2009008764A (en) |
| NO (1) | NO343795B1 (en) |
| SG (1) | SG178796A1 (en) |
| WO (1) | WO2008101005A1 (en) |
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| CN103025995A (en) * | 2010-07-01 | 2013-04-03 | 国民油井华高公司 | Blowout preventer monitoring system and method of using same |
| CN103161422A (en) * | 2011-12-13 | 2013-06-19 | 海德里尔美国制造业有限责任公司 | Visual ram position indicator apparatuses and methods |
| CN110284851A (en) * | 2019-07-26 | 2019-09-27 | 唐建华 | A kind of Ram Preventer Hydraulic Locking Device |
| CN117404079A (en) * | 2023-12-13 | 2024-01-16 | 中国石油集团川庆钻探工程有限公司 | Online diagnosis and evaluation method and system for shearing process of ram blowout preventer |
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| US9109421B2 (en) | 2008-12-18 | 2015-08-18 | Hydril USA Distribution LLC | Deformation resistant opening chamber head and method |
| KR102171653B1 (en) * | 2013-10-14 | 2020-10-30 | 대우조선해양 주식회사 | Apparatus and method for test of bop control system |
| KR102130718B1 (en) * | 2013-10-14 | 2020-07-07 | 대우조선해양 주식회사 | System for training in bop operation |
| EP3715795A1 (en) | 2019-03-29 | 2020-09-30 | Siemens Aktiengesellschaft | Positioning in a high pressure area |
| US20230184095A1 (en) * | 2021-12-15 | 2023-06-15 | Helmerich & Payne Technologies, Llc | Transducer assembly for oil and gas wells |
| US11905824B2 (en) | 2022-05-06 | 2024-02-20 | Cameron International Corporation | Land and lock monitoring system for hanger |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101526612B1 (en) | 2015-06-05 |
| SG178796A1 (en) | 2012-03-29 |
| CA2677653C (en) | 2015-07-21 |
| MX2009008764A (en) | 2009-08-27 |
| WO2008101005A1 (en) | 2008-08-21 |
| KR20090120464A (en) | 2009-11-24 |
| CA2677653A1 (en) | 2008-08-21 |
| AU2008216253B2 (en) | 2013-10-31 |
| CN101675213B (en) | 2017-09-15 |
| CA2890474A1 (en) | 2008-08-21 |
| CA2890472C (en) | 2016-10-04 |
| AR065366A1 (en) | 2009-06-03 |
| NO20092833L (en) | 2009-09-16 |
| NO343795B1 (en) | 2019-06-11 |
| CA2890472A1 (en) | 2008-08-21 |
| EA014181B1 (en) | 2010-10-29 |
| EA200970775A1 (en) | 2010-02-26 |
| CN107575182A (en) | 2018-01-12 |
| AU2008216253A1 (en) | 2008-08-21 |
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