CN204827336U - Contraction type simulation packer - Google Patents
Contraction type simulation packer Download PDFInfo
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- CN204827336U CN204827336U CN201520452637.4U CN201520452637U CN204827336U CN 204827336 U CN204827336 U CN 204827336U CN 201520452637 U CN201520452637 U CN 201520452637U CN 204827336 U CN204827336 U CN 204827336U
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Abstract
The utility model provides a contraction type simulation packer, it includes: the casing is formed with the upper portion open -ended and holds the chamber, the simulation drilling rod sets up hold the intracavity and with the connection can be dismantled to the casing, the retaining member sets up hold the intracavity and cup joint on the simulation drilling rod, first end cover sets up the retaining member top, the lid closes be in on the opening of casing and to pressing on the retaining member. Under the condition of laboratory, use the utility model discloses a behind the encapsulated situation of packer, detect the sealing performance of simulation packer through testing method in the actual engineering of simulation packer simulation to obtain the sealing performance data of simulation packer when encapsulated situation.
Description
Technical field
The utility model relates to the experimental rig of the downhole tool of petroleum industry, particularly relates to a kind of contraction type simulation packer.
Background technology
Packer as the significant element equipment of in ocean platform well system, be mainly used to control and shallow gas in guided drilling process and drilling fluid away from rig floor, ensure operating personnel and device security.The packer that oil field is conventional both at home and abroad at present mainly uses contraction type and compression two type.
Contraction type packer utilizes the radial contraction of rubber parts to be out of shape contact to realize sealing with drilling rod, and be field use comparatively morning, the layered waterflooding packer that is most widely used, its structure is simply, easy to use.One of its core component is packing element.In the contraction type packer course of work, packing element is in harsh work condition environment, the fluctuation of such as pressure and temperature.In such a case, can there is the situation of fatigue failure in packing element, and As time goes on and gradually its performance declines, and even loses functional performance, and then cause packer sealing to lose efficacy.But, owing to there is no the experimental rig that can carry out in laboratory accordingly testing.Therefore, the method obtaining the sealing performance data of contraction type packer when sealing state at present carries out research according to the actual service condition of packer to sum up, and it is long that such measuring method exists the cycle, detects data unreliable, inefficient deficiency.
Utility model content
Technical problem to be solved in the utility model makes the method for sealing performance data when obtaining contraction type packer at present at sealing state be carry out studying the deficiency summed up according to the actual service condition of packer owing to not having the experimental rig that can carry out in laboratory accordingly testing in order to overcome in prior art.
For the problems referred to above, the utility model proposes a kind of contraction type simulation packer, it comprises: housing, is formed with the container cavity of upper opening; Simulation drilling rod, to be arranged in described container cavity and to removably connect with described housing; Locking member, to be arranged in described container cavity and to be socketed on described simulation drilling rod; First end cap, is arranged on above described locking member, to cover on the opening of described housing and to be pressed on described locking member.
According to contraction type simulation packer of the present utility model, it comprises the housing for simulating the urceolus used in Practical Project, for simulating the simulation drilling rod of the drilling rod used in Practical Project and the locking member for simulating the packing element used in Practical Project.Simulation drilling rod is arranged in housing, and locking member is socketed on simulation drilling rod.Is formed when being sealed and matched in process of the test with simulation drilling rod, the packing element can simulating the packer applied in Practical Project locks the sealing state of drilling rod.Like this, in laboratory conditions, after using simulation packer of the present utility model to simulate the sealing state of packer in Practical Project, detected by the sealing performance of test method to simulation packer, thus obtain the sealing performance data of simulation packer when sealing state.Obtained by test method that to detect cycle of data short, ensure reliability, and efficiency is high, and then provide technical support for the through engineering approaches application of packer product.First end cap covers the opening part of housing, can be formed spacing to the locking member be press fit in housing, prevents its axial direction along housing from moving up, ensure that in process of the test the safety of simulating packer.
In one embodiment, described first end covers and is provided with the first centre bore, and described simulation drilling rod is through described first centre bore.
In one embodiment, the hole wall of described first centre bore be provided with along axially extended first groove of described first centre bore and be connected with described first groove and the second groove extended along the circumference of described first centre bore; An opening of described first groove is positioned on the end face of described first end cap.
In one embodiment, plural described first groove is uniformly distributed along the circumference of described first centre bore, and plural described second groove circumference is uniformly distributed; Described first groove is equal with the quantity of the second groove.
In one embodiment, plural described first groove is uniformly distributed along the circumference of described first centre bore, and described second groove is an annular, peripheral groove.
In one embodiment, described contraction type simulation packer also comprises the second end cap being positioned at described first centre bore, the outer surface of described second end cap is provided with the projection through described first groove with described second fit depressions.
In one embodiment, described second end cap is provided with the second centre bore, the hole wall of described second centre bore is provided with along axially extended 3rd groove of described second centre bore and is connected with described 3rd groove and the 4th groove extended along the circumference of described second centre bore; An opening of described 3rd groove is positioned on the end face of described second end cap.
In one embodiment, an end face of described first end cap is step surface, and the top of described housing and inwall match with described step surface respectively.
In one embodiment, the elastic component that described locking member comprises the first retainer ring, the second retainer ring and is connected with the second retainer ring with described first retainer ring, described elastic component is between described first retainer ring and the second retainer ring.
In one embodiment, described first retainer ring is provided with the connecting portion connecting described elastic component; Described connecting portion comprises the annular flange flange that boss and described boss peripheral surface toward the outer side that described first retainer ring arranges on the end face of described second retainer ring are arranged; Cannelure is formed between the end face of described annular flange flange and described first retainer ring.
According to contraction type simulation packer of the present utility model, according to simulation packer of the present utility model, it comprises the housing for simulating the urceolus used in Practical Project, for simulating the simulation drilling rod of the drilling rod used in Practical Project and the locking member for simulating the packing element used in Practical Project.Simulation drilling rod is arranged in housing, and locking member is socketed on simulation drilling rod.Is formed when being sealed and matched in process of the test with simulation drilling rod, the packing element can simulating the packer applied in Practical Project locks the sealing state of drilling rod.Like this, in laboratory conditions, after using simulation packer of the present utility model to simulate the sealing state of packer in Practical Project, detected by the sealing performance of test method to simulation packer, thus obtain the sealing performance data of simulation packer when sealing state.Obtained by test method that to detect cycle of data short, ensure reliability, and efficiency is high, and then provide technical support for the through engineering approaches application of packer product.First end cap covers the opening part of housing, can be formed spacing to the locking member be press fit in housing, prevents its axial direction along housing from moving up, ensure that in process of the test the safety of simulating packer.First end cap and the dismounting of the second end cap are by the first groove of the projection of the second end cap and the first end cap, realize coordinating of the second groove, this makes the first end cap and the second end cap easy accessibility, install fixing reliable, improve installation effectiveness, reduce labour intensity.
Accompanying drawing explanation
Also will be described in more detail the utility model with reference to accompanying drawing based on embodiment hereinafter.
Fig. 1 is the cross-sectional schematic of the contraction type simulation packer of the utility model embodiment.
Fig. 2 is the structural representation of the locking member directly coordinated with housing of the utility model embodiment.
Fig. 3 is the structural representation of an embodiment of the first end cap of the utility model embodiment.
Fig. 4 is the structural representation of another embodiment of the first end cap of the utility model embodiment.
Fig. 5 is the structural representation of an embodiment of the second end cap of the utility model embodiment.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the scale of reality.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 show schematically show the sectional structure chart of contraction type simulation packer.
The contraction type packer applied in the contraction type simulation packer main analog deepwater drilling engineering of the utility model embodiment.Contraction type simulation packer comprises for each component provides the housing 11 of installation foundation.Housing 11 forms the container cavity of upper opening.Housing 11 is configured to cylinder type.Housing 11 can be an integrated member, also can processing and manufacturing become two components to be assembled into together again.Simulation drilling rod 12 is fixed on the diapire of housing 11, is provided with O RunddichtringO between the end face of simulation drilling rod 12 and diapire.Simulation drilling rod 12 is configured to cylinder, and itself and housing 11 are coaxially arranged.Simulation drilling rod 12 is socketed with locking member 13.Locking member 13 is arranged between housing 11 and simulation drilling rod 12.Locking member 13 is sealed and matched to simulate formation between drilling rod 12 for locking simulation drilling rod 12, thus simulation is in the situation of actual working conditions lower rubber cylinder locking drilling rod.When locking member 13 is sealed and matched with simulation drilling rod 12, contraction type simulation packer is in the state of setting, and then provides predetermined pressure for housing 11 inside and detect the sealing performance between locking member 13 and simulation drilling rod 12.Thus, achieve in laboratory conditions, utilize the sealing performance of research technique to contraction type simulation packer to detect, obtain the sealing performance data of contraction type simulation packer when sealing state.Obtained by test method that to detect cycle of data short, reliability is high, and efficiency is high, and then provides technical support for the through engineering approaches application of packer product.
When locking member 13 number arranged in housing 11 is one, locking member 13 is formed between meeting and the inner surface of housing 11 after installing and being fixed to housing 11 and is sealed and matched.Like this, inner surface and the external surface of simulation drilling rod 12 of locking member 13 is formed be sealed and matched time, locking member 13, simulate between drilling rod 12 and housing 11 and form the first closed chamber 14.
When needing to test the simulation drilling rod 12 of different-diameter, in housing 11, multiple locking member 13 connected together can be set.Outermost locking member 13 to be installed in housing 11 and and to be formed between housing 11 and be sealed and matched.Between adjacent locking member 13 formed sealing and the locking member 13 of innermost layer locking simulation drilling rod 12 with formed be sealed and matched time, contraction type simulation packer be in the state of setting.The first closed chamber 14 is formed between each locking member 13, simulation drilling rod 12 and housing 11.
Housing 11 is provided with the first through hole 111 of connection first closed chamber 14 and external environment condition.After the conveyance conduit of the first hydraulic system being connected to the first through hole 111, preset pressure can be provided in the first closed chamber 14.The pressure that this preset pressure simulation oil exploitation process middle-shallow layer oil gas rises.By the sealing performance providing preset pressure to detect contraction type simulation packer to the first closed chamber 14.If do not detect that in outside liquid overflows from locking member 13 and the cooperation position of simulating drilling rod 12, show that contraction type simulation packer is functional at the effect lower seal of preset pressure.
The elastic component that locking member 13 comprises the first retainer ring, the second retainer ring and is fixed together with the first retainer ring and the second retainer ring.Elastic component is arranged between the first retainer ring and the second retainer ring.
Alternatively, as shown in Figure 2, the first retainer ring and the second retainer ring are steel annulus 131.Elastic component is the packing element 132 using elastomeric material processing and manufacturing.Main effect packing element 132 being played to support limit of steel annulus 131.
The quantity of locking member 13 can be set to one or more, below provides two embodiments:
First embodiment, when the locking member 13 arranged in housing 11 is one, the container cavity that housing 11 is arranged is configured to shoulder hole.Install and be fixed on step surface that locking member 13 seated connection in housing 11 formed at shoulder hole, thus the installation site that housing 11 defines locking member 13 provides support for locking member 13, prevents its sagging bottom being slipped to housing 11 simultaneously.
The steel annulus 131 of the locking member 13 directly coordinated with housing 11 is provided with the connecting portion being connected packing element 132.Connecting portion comprises the annular flange flange 1312 that boss 1311 and boss 1311 peripheral surface toward the outer side that steel annulus 131 arranges on the end face of the steel annulus 131 be oppositely arranged are arranged.Annular flange flange 1312 extends around the axis circumference of steel annulus 131.The maximum radial dimension of annular flange flange 1312 is less than the maximum radial dimension of steel annulus 131.Cannelure 1313 is formed between the end face of annular flange flange 1312 and steel annulus 131.In the present embodiment, the first retainer ring and the second retainer ring are the steel annulus 131 that structure is identical, repeat no more the structure of the second retainer ring herein.Boss 1311 and the end face of steel annulus 131 form first step in the inner part and second step in the outer part respectively.
The process of locking member processing and manufacturing is first fixed the position of two steel annulus 131, and then inject the raw material forming packing element 132 in the space formed between two steel annulus 131.The space formed between full two steel annulus 131 can be filled when the raw material injected has mobility.A part for packing element 132 extend in cannelure 1313, thus makes packing element 132 be connected more reliable consolidation with two steel annulus 131, and packing element 132 is not easy to depart from steel annulus 131.
In one embodiment, locking member 13 is interference fit with the fit form of simulation drilling rod 12, and the outer surface that packing element 132 is directly pressed on simulation drilling rod 12 is sealed and matched to be formed.
In one embodiment, locking member 13 cover installs on simulation drilling rod 12 and also and between simulation drilling rod 12 is formed with gap.Can radial deformation be there is when packing element 132 is subject to External Force Acting, so the inner surface of packing element 132 can be pressed on simulation drilling rod 12 external surface with formed be sealed and matched, namely locking member 13 lock simulation drilling rod 12.
The outer surface of the steel annulus 131 be directly connected with housing 11 is provided with circumferential slot.Seal 99 is provided with in circumferential slot.After locking member 13 is pressed onto housing 11, seal 99 can be subject to the extruding of housing 11 and steel annulus 131 and form upper and lower two seals face.The steel annulus 131 be fixed in housing 11 is installed and change in location can not occurs, thus ensure that seal 99 forms the reliability of sealing.Circumferential slot is provided with on the outer surface of the packing element 132 of this locking member 13 and/or on housing 11 inner surface corresponding with packing element 132.Like this, locking member 13 is being press fit into after in housing 11, between the surface of housing 11 and locking member 13, is forming the second closed chamber 15.Preferably, seal 99 is O RunddichtringOs.
Housing 11 is provided with the second through hole 112 for being communicated with the second closed chamber 15 and external environment condition.The defeated pressure pipeline of the second hydraulic system is connected with the second through hole 112 to make the second hydraulic system can provide preset pressure by the second through hole 112 in the second closed chamber 15.This preset pressure can be actuated packing element 132 and radial deformation is occurred.This preset pressure is a kind of operating pressure, and simulation in case of emergency makes packing element 132 radial deformation occur and lock the operating pressure of drilling rod.The force value size of the pressure provided to the second closed chamber 15 due to the second hydraulic system is adjustable, and the pressure that can provide with the first hydraulic system carries out accommodation.The force value difference of the second hydraulic system input makes the radial-deformation of packing element 132 also different.Therefore.First hydraulic system and the second hydraulic system can be carried out collaborative work each other and be simulated the sealing performance of packer under different pressures environment to detect contraction type, and then the sealing performance data obtained under many group different pressures environment, thus provide more technical data reference for the commercialization of packer.
As shown in Figure 1, be provided with above this locking member 13 and can cover housing 11 opening and the first end cap 17 compressing this locking member 13.First end cap 17 seated connection is at the opening part of housing 11.First end cap 17 is provided with connecting hole, housing 11 is provided with the screwed hole corresponding with connecting hole, bolt is through being screwed to after connecting hole in screwed hole with together with being affixed to housing 11 by the first end cap 17.An end of the first end cap 17 is step-like, and the top of housing 11 and inwall match with the step surface of this end respectively, and namely the first end cap 17 is provided with towards the side of container cavity and extend in housing 11 container cavity and the protuberance be pressed on steel annulus 131.When outside the second hydraulic system connected provides pressure to the second closed chamber 15, liquid can produce an axial thrust load to locking member 13.This axial thrust load can be actuated locking member 13 and be produced trend to the movement of housing 11 opening part.After first end cap 17 is set, protuberance can be pressed on the steel annulus 131 of locking member 13, thus the position of locking member 13 is limited together with housing 11, preventing locking member 13 from moving to housing 11 opening part when being subject to External Force Acting, ensure that the safety of contraction type simulation packer in whole process of the test.
As shown in Figure 3, the first end cap 17 is provided with the first centre bore 171 passed for simulation drilling rod 12.The end face of the first end cap 17 is provided with hole for hoist.First end cap 17 is lifted into the top of housing 11, is being installed in the process on housing 11, simulation drilling rod 12 can play guiding function, and the first end cap 17 is moved to correct position and installs by handled easily person.
Second embodiment, when locking member 13 is set to multiple, contraction type simulation packer can be tested the simulation drilling rod 12 of different-diameter.Preferably, three locking members 13 are set in housing.
Three locking members 13 connect together mutually.Cover termination process can be the locking member 13 being first positioned at innermost layer, is then socketed locking member 13 in the outer part successively, also can be first press fit in housing 11 by outermost locking member 13, then is socketed the locking member 13 near simulation drilling rod 12 successively.And be arranged in the shoulder hole that outermost locking member 13 needs to be press fit into housing 11, the common squeeze sealing member 99 of steel annulus 131 and housing 11 is sealed and matched to be formed.Except outermost locking member 13 seated connection is except housing 11, other locking member 13 seated connection is being socketed in simulation drilling rod 12 and is being positioned on the support member of housing 11 bottom position.Support member is that the locking member 13 being positioned at nexine provides support power, makes the packing element 132 of the locking member 13 of nexine corresponding with the packing element 132 of outermost locking member 13, ensures that the radial deformation of outermost packing element 132 is delivered to the packing element 132 of innermost layer smoothly.
As shown in Figure 1, be positioned at middle locking member 13 and comprise two the steel annulus 131 being positioned at upper and lower, namely superposed steel annulus 131 is first retainer rings, and the steel annulus 131 being positioned at bottom is second retainer rings.The end face that the steel annulus 131 on top is connected with packing element 132 comprises the step surface being positioned at outside and the fillet surface being positioned at inner side.The end face that the steel annulus 131 of bottom is connected with packing element 132 also comprises the step surface being positioned at outside and the fillet surface being positioned at inner side.Like this, when behind the space that packing element 132 is filled between full two steel annulus 131, the extruding of two steel annulus 131 will be subject to.Because packing element 132 matches with step surface, thus to packing element 132 formed one spacing, packing element 132 when being subject to radial load effect also can not between two steel annulus 131 space depart from.
As shown in Figure 3, the second end cap 18 matched with the first end cap 17 is set above the locking member 13 of centre.The hole wall of the first centre bore 171 of the first end cap 17 be provided with along axially extended first groove 172 of the first centre bore 171 and be connected with the first groove 172 and the second groove 173 extended along the circumference of the first centre bore 171.An opening of the first groove 172 is positioned on the end face of the first end cap 17.Second end cap 18 is positioned at the first centre bore 171.
As shown in Figure 5, the outer surface of the second end cap 18 is provided with the projection 181 matched with the first groove 172 and the second groove 173.
The assembling process of the first end cap 17 and the second end cap 18 is: first install the first end cap 17.Then lift the second end cap 18, the projection 181 on the second end cap 18 is matched with the opening of the first groove 172.Adjust the position of the second end cap 18, make protruding 181 to be inserted in the first groove 172 and finally touch the bottom land of the first groove 172, thus the second end cap 18 is placed on the first end cap 17.Then the axis around the first centre bore 171 rotates the second end cap 18, and protruding 181 slippages are entered in the second groove 173 be connected with the first groove 172.After projection 181 coordinates with the second groove 173, complete the installation of the second end cap 18 on the first end cap 17 and fix.Second end cap 18 is pressed on the upper steel rounding ring 131 of middle locking member 13.Second end cap 18 is subject to the spacing of the second groove 173 and the movement of axial direction can not occur.The end face of upper steel rounding ring 131 is step surfaces.Second end cap 18 is provided with the step surface matched with this step surface.Like this, medium lock gripping members 13 position is in the housing subject to the restriction of the second end cap 18, and the skew of radial direction can not occur.
As shown in Figure 1, the locking member 13 being positioned at innermost layer also comprises two the steel annulus 131 being positioned at upper and lower, and namely superposed steel annulus 131 is first retainer rings, and the steel annulus 131 being positioned at bottom is second retainer rings.The end face that the steel annulus 131 on top is connected with packing element 132 is step surface.The end face that the steel annulus 131 of bottom is connected with packing element 132 comprises the step surface being positioned at outside and the fillet surface being positioned at inner side.Like this, when behind the space that packing element 132 is filled between full two steel annulus 131, the extruding of two steel annulus 131 will be subject to.Because packing element 132 matches with step surface, thus to packing element 132 formed one spacing, packing element 132 when being subject to radial load effect also can not between two steel annulus 131 space depart from.
The 3rd end cap 19 matched with the second end cap 18 is set above the locking member 13 of innermost layer.As shown in Figure 5, the hole wall of the second centre bore 182 of the second end cap 18 be provided with along axially extended 3rd groove 183 of the second centre bore 182 and be connected with the 3rd groove 183 and the 4th groove 184 extended along the circumference of the second centre bore 182.An opening of the 3rd groove 183 is positioned on the end face of the second end cap 18.3rd end cap 19 is positioned at the second centre bore 182.The outer surface of the 3rd end cap 19 is provided with the projection 181 matched with the 3rd groove 183 and the 4th groove 184.3rd end cap 19 is also provided with the 3rd centre bore passed for simulation drilling rod.3rd end cap 19 is identical with the assembling process of the second end cap 18 and the first end cap 17 with the assembling process of the second end cap 18, repeats no more herein.
Alternatively, plural first groove 172 is uniformly distributed around the axis circumference of the first centre bore 171.Plural second groove 173 is uniformly distributed around the axis circumference of the first centre bore 171.The quantity of the first groove 172 is equal with the quantity of the second groove 173.Plural 3rd groove 183 is uniformly distributed around the axis circumference of the second centre bore 182.Plural 4th groove 184 is uniformly distributed around the axis circumference of the second centre bore 182.The quantity of the 3rd groove 183 is equal with the quantity of the 4th groove 184.
Preferably, the hole wall of the first centre bore 171 arranges three the second grooves 173 (as shown in Figure 3).The hole wall of the second centre bore 182 is arranged three the 4th grooves 184.The central angle that the length of each second groove 173 and the extension of the 4th groove 184 circumference is corresponding is 60 degree.The quantity of the first groove 172 is equal with the quantity of the second groove 173.The quantity of the 3rd groove 183 is equal with the quantity of the 4th groove 184.First groove 172 is connected with one end of the second groove 173.3rd groove 183 is connected with one end of the 4th groove 184.Like this, after the projection 181 on the second end cap 18 or the 3rd end cap 19 inserts the first groove 172 or the 3rd groove 183, then the bottom land that 60 degree just touch the second groove 173 or the 4th groove 184 is rotated.Thus make easy to operate, easily judge the relative position of the second end cap 18 or the 3rd end cap 19 and the first end cap 17 or the second end cap 18.
Alternatively, the second groove 173 is annular, peripheral grooves (as shown in Figure 4).4th groove 184 is also an annular, peripheral groove.Plural first groove 172 is uniformly distributed along the circumference of the first centre bore 171.3rd groove 183 is uniformly distributed along the circumference of the second centre bore 182.Preferably, the number of the first groove 172 and the 3rd groove 183 is three.Like this, annular, peripheral groove is relatively easily processed, and processing and manufacturing cost is low.In addition, a projection 181 of the second end cap 18 or the 3rd end cap 19, after the first groove 172 or the insertion of the 3rd groove 183, rotates in the same direction and just can align with next first groove 172 or the 3rd groove 183 in annular, peripheral groove, for convenience detach.
When contraction type simulation packer is provided with multiple locking member 13, the end cap equal with locking member 13 quantity is set.Be positioned at outermost first end cap 17 to be detachably connected with housing 11, other end caps socket-connect with outermost first end cap 17 successively.The corresponding locking member 13 of each end cap.When putting into the locking member 13 of nexine to the container cavity of housing 11 or removing the locking member 13 of nexine from housing 11, only need to open or cover the operation of closing to the end cap corresponding with this locking member 13, thus simplify the step of dismounting locking member 13, also reduce the labour intensity of disassembly process.
Support member is locating ring 16.Locating ring 16 cover receive simulation drilling rod 12 on and seat be placed on bottom housing 11 arrange depressed part in.Depressed part bottom housing 11 can play position-limiting action to locating ring 16.Locating ring 16 is provided with the radial third through-hole 161 extended.Gap is formed between the inner surface of locating ring 16 and the external surface of simulation drilling rod 12.Like this, when the first hydraulic system provides hydraulic coupling to the first closed chamber 14.Liquid can flow to packing element 132 and the position that is sealed and matched of simulation drilling rod 12 by third through-hole 161 and the gap between locating ring 16 and simulation drilling rod 12, ensures successfully to complete test.
Locking member 13 own wt is large, and a dead lift is wasted time and energy, and needs to be lifted into the correct position above housing 11, and then is installed in housing 11.Therefore, steel annulus 131 is provided with hole for hoist.Hole for hoist is screwed hole, and convenient installation in hole for hoist lifts bolt and use hanging device that locking member 13 is lifted into correct position.Like this, operator can carry out position adjustment to the locking member 13 after lifting and be installed in housing 11 by locking member 13 exactly, also reduces the labour intensity of locking member 13 installation process simultaneously.
Housing 11 is provided with the hole be connected with the second closed chamber 15 with the first closed chamber 14, the plug 20 for this hole of opening/closing is installed in this hole.When needing the air extrusion in the first closed chamber 14 or the second closed chamber 15 to go out housing 11, opening plug 20 and opening hydraulic system.In time having liquid to emerge from this hole, stop voltage supply, and block this hole with plug 20.And then carry out subsequent experimental operation.
Housing 11 is provided with the temperature pick up 21 for monitoring the first closed chamber 14 variations in temperature.Like this, can by the temperature of adjustment first closed chamber 14, test contraction type simulation packer set when environment temperature is different after sealing performance.
The utility model embodiment contraction type simulation packer, comprise housing 11, the simulation drilling rod 12 be arranged in housing 11, be socketed in simulation drilling rod 12 on locking member 13.When simulation drilling rod 12 locked by locking member 13, simulation can form the first closed chamber 14 between drilling rod 12, locking member 13 and housing 11.The preset pressure of the simulation oil exploitation process middle-shallow layer pressure that oil gas rises is provided in the first closed chamber 14 and experiment is carried out to the sealing performance of contraction type simulation packer and detect.After the locking member 13 be connected with housing 11 is installed and is fixed to housing 11, and between housing 11, form the second closed chamber 15.First end cap 17, first end cap 17 is installed above locking member 13 locking member 13 is limited in housing 11, avoids locking member 13 to deviate from from housing 11.To the second closed chamber 15 provide simulated locking operation time required pressure preset pressure after, can make the packing element 132 of locking member 13 that radial deformation occurs.Packing element 132 after radial deformation can be formed to be sealed and matched to lock and simulates drilling rod 12 with simulation drilling rod 12, thus the packer applied of model engineering in case of emergency packing element 132 lock drilling rod set state.Therefore, the contraction type simulation packer of the utility model embodiment achieves in laboratory conditions, utilizes the sealing performance of research technique to contraction type simulation packer to detect, obtains the sealing performance data of contraction type simulation packer when sealing state.Obtained by test method that to detect cycle of data short, reliability is high, and efficiency is high, and then provides technical support for the through engineering approaches application of contraction type packer product.
Although be described the utility model with reference to preferred embodiment, when not departing from scope of the present utility model, various improvement can be carried out to it and parts wherein can be replaced with equivalent.Especially, only otherwise there is structural hazard, the every technical characteristic mentioned in each embodiment all can combine in any way.The utility model is not limited to specific embodiment disclosed in literary composition, but comprises all technical schemes fallen in the scope of claim.
Claims (10)
1. a contraction type simulation packer, is characterized in that, comprising:
Housing, is formed with the container cavity of upper opening;
Simulation drilling rod, to be arranged in described container cavity and to removably connect with described housing;
Locking member, to be arranged in described container cavity and to be socketed on described simulation drilling rod;
First end cap, is arranged on above described locking member, to cover on the opening of described housing and to be pressed on described locking member.
2. contraction type simulation packer according to claim 1, it is characterized in that, described first end covers and is provided with the first centre bore, and described simulation drilling rod is through described first centre bore.
3. contraction type simulation packer according to claim 2, it is characterized in that, the hole wall of described first centre bore be provided with along axially extended first groove of described first centre bore and be connected with described first groove and the second groove extended along the circumference of described first centre bore; An opening of described first groove is positioned on the end face of described first end cap.
4. contraction type simulation packer according to claim 3, it is characterized in that, plural described first groove is uniformly distributed along the circumference of described first centre bore, and plural described second groove circumference is uniformly distributed; Described first groove is equal with the quantity of the second groove.
5. contraction type simulation packer according to claim 3, it is characterized in that, plural described first groove is uniformly distributed along the circumference of described first centre bore, and described second groove is an annular, peripheral groove.
6. contraction type simulation packer according to claim 3, it is characterized in that, described contraction type simulation packer also comprises the second end cap being positioned at described first centre bore, the outer surface of described second end cap is provided with the projection through described first groove with described second fit depressions.
7. contraction type simulation packer according to claim 6, it is characterized in that, described second end cap is provided with the second centre bore, the hole wall of described second centre bore is provided with along axially extended 3rd groove of described second centre bore and is connected with described 3rd groove and the 4th groove extended along the circumference of described second centre bore; An opening of described 3rd groove is positioned on the end face of described second end cap.
8. contraction type simulation packer according to claim 1, it is characterized in that, an end face of described first end cap is step surface, and the top of described housing and inwall match with described step surface respectively.
9. contraction type simulation packer according to claim 1, it is characterized in that, the elastic component that described locking member comprises the first retainer ring, the second retainer ring and is connected with the second retainer ring with described first retainer ring, described elastic component is between described first retainer ring and the second retainer ring.
10. contraction type simulation packer according to claim 9, is characterized in that, described first retainer ring is provided with the connecting portion connecting described elastic component; Described connecting portion comprises the annular flange flange that boss and described boss peripheral surface toward the outer side that described first retainer ring arranges on the end face of described second retainer ring are arranged; Cannelure is formed between the end face of described annular flange flange and described first retainer ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520452637.4U CN204827336U (en) | 2015-06-29 | 2015-06-29 | Contraction type simulation packer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520452637.4U CN204827336U (en) | 2015-06-29 | 2015-06-29 | Contraction type simulation packer |
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| CN204827336U true CN204827336U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520452637.4U Active CN204827336U (en) | 2015-06-29 | 2015-06-29 | Contraction type simulation packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827336U (en) |
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2015
- 2015-06-29 CN CN201520452637.4U patent/CN204827336U/en active Active
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