CN101498213A - Downhole wet mixing connection - Google Patents
Downhole wet mixing connection Download PDFInfo
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- CN101498213A CN101498213A CNA200810008771XA CN200810008771A CN101498213A CN 101498213 A CN101498213 A CN 101498213A CN A200810008771X A CNA200810008771X A CN A200810008771XA CN 200810008771 A CN200810008771 A CN 200810008771A CN 101498213 A CN101498213 A CN 101498213A
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- connector
- line connector
- well
- assembly
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Abstract
The invention discloses underground wet-match connection, in particular relates to a utilization technology for an actuation mechanism of control wires or a connector protection mechanism or both used in a well drilling environment, wherein a well drilling system comprises a lower part assembly, an upper part assembly and an actuation mechanism of control wires, the lower part assembly can be positioned in a drilling well and comprises a lower part control wire connector, the upper part assembly can be connected with the lower part assembly on the underground position and comprises an upper part control wire connector, and after being selectively used for sleeving the upper part assembly on the lower part assembly, the actuation mechanism of control wires enables the upper part control wire connector and the lower part control wire connector to be connected. Once a lower part well-completion assembly and an upper part well-completion assembly are sleeved on the expected well drilling position, the control wire connectors are connected. The actuation mechanism of control wires and/or the connector protection mechanism are convenient for the formation of the expected connection of control wires.
Description
Technical field
The present invention relates to a kind of downhole wet mixing and connect (downhole wet mate connection).
Background technology
Many kinds of wells, for example oil well and gas well were finished with two or more stages.For example, bottom well completion assemblies (lower completion assembly) originally can move in the down-hole by the rope of walking.After the bottom well completion assemblies was arranged to the desired locations of drilling well, top well completion assemblies (uppercompletion assembly) was set at the down-hole and is connected with the bottom well completion assemblies.
The integrated one or more control lines of many completions (well completions) (for example light, electricity or fluid control line) are so that transmit signal to down-hole completion element (components of the downholecompletion) or from down-hole completion element transmission signal.Yet the well finished of two or more stages can form between adjacent well completion assemblies reliably and have difficulties aspect repeatably control line is connected.
The use that middle down particular element of using of completion interval of well and the specified conditions in the subsurface environment can make control line is further complicated.For example, during the top well completion assemblies was loaded into the bottom well completion assemblies, the control line connector can be placed in the danger.
During the upper and lower well completion assemblies connects, control line (control lines) and the more fragile and easier infringement of control line connector.For example, the top well completion assemblies can comprise having heavy weight big relatively element.The size of top well completion assemblies and weight cause being difficult to realizing to the abundant control of moving of assembly being connected so that guarantee that control line is harmless.
Summary of the invention
Usually, the invention provides the control line actuating mechanism that uses in a kind of drilling environment and or both operation techniques in the protection of connector mechanism.Usually each of lower component and top assembly has at least one control line connector, in case lower component and top assembly when the socket of the drilling well position of expectation, the control line connector can be connected.The wet formation that is connected of the control line that control line actuating mechanism and/or protection of connector mechanism are convenient to expect.
Description of drawings
Describe embodiments of the invention below with reference to the accompanying drawings in detail, wherein the system reference mark is represented similar elements.
Fig. 1 is the schematic diagram that has the drilling well of well completion assemblies according to an embodiment of the invention, and this well completion assemblies has flexible connector (contraction joint);
Fig. 2 is similar to Fig. 1 according to an embodiment of the invention, but shows the drilling well schematic diagram of the flexible connector in the telescopic construction;
Fig. 3 is the enlarged drawing of the part of the flexible connector of display barrel clip assembly (collet assembly) according to an embodiment of the invention;
Fig. 4 is according to an embodiment of the invention, be connected the schematic diagram of the top well apparatus assembly of (for example inserting) with the lower well apparatus assembly;
Fig. 5 be according to an embodiment of the invention, another schematic diagram of the top well apparatus assembly that is connected with the lower well apparatus assembly;
Fig. 6 be according to an embodiment of the invention, another schematic diagram of the top well apparatus assembly that is connected with the lower well apparatus assembly;
Fig. 7 be according to an embodiment of the invention, another schematic diagram of the top well apparatus assembly that is connected with the lower well apparatus assembly;
Fig. 8 be according to an embodiment of the invention, another schematic diagram of the top well apparatus assembly that is connected with the lower well apparatus assembly;
Fig. 9 be according to an embodiment of the invention, the schematic diagram of the top well apparatus assembly of Fig. 8 of being connected fully with the lower well apparatus assembly;
Figure 10 be according to an embodiment of the invention, control line keeps the sectional view of system;
Figure 11 be according to an embodiment of the invention, another control line keeps the sectional view of system;
Figure 12 is according to an embodiment of the invention, is convenient to the roughly axial sectional view of bindiny mechanism that the down-hole connector connects;
Figure 13 be according to an embodiment of the invention, but from different perspectives schematic diagram similar to Figure 12;
Figure 14 be according to an embodiment of the invention, similar to Figure 12 but show the schematic diagram of bindiny mechanism outside;
Figure 15 is according to an embodiment of the invention, is used to clean the roughly axial sectional view of the rinse-system in completion zone;
Figure 16 be according to an embodiment of the invention, but from different perspectives schematic diagram similar to Figure 15;
Figure 17 be according to an embodiment of the invention, similar to Figure 15 but show the schematic diagram of the outside of downhole component;
Figure 18 be according to an embodiment of the invention, the transverse sectional view of bindiny mechanism;
Figure 19 is according to an embodiment of the invention, is used for the top view of the substitution of Coverage Control wiring connector;
Figure 20 be according to an embodiment of the invention, the roughly axial sectional view of the top well apparatus assembly that is connected with the lower well apparatus assembly;
Figure 21 be according to an embodiment of the invention, but from different perspectives schematic diagram similar to Figure 20;
Figure 22 be according to an embodiment of the invention, similar with Figure 20 but show the outside of the upper and lower well apparatus assembly be connected;
Figure 23 be according to an embodiment of the invention, similar with Figure 20 but show the schematic diagram that fully activates the bindiny mechanism that is connected top assembly connector and lower component connector;
Figure 24 is according to an embodiment of the invention, top well apparatus assembly is remained on the roughly sectional view of the lockable mechanism of complete link position with respect to the lower well apparatus assembly;
Figure 25 be according to an embodiment of the invention, can with the schematic diagram of the control line interrupter of underground equipment combination of components;
Figure 26 be according to an embodiment of the invention, similar with Figure 25 but show the schematic diagram of the control line interrupter activate into another kind of mode of operation;
Figure 27 is the schematic diagram of alternate embodiment according to another embodiment of the present invention, that be positioned to the top assembly that is connected with lower component in the drilling well;
Figure 28 be according to an embodiment of the invention, similar with Figure 27 but show the schematic diagram of the top assembly that is connected fully with lower component;
Figure 29 be according to an embodiment of the invention, the enlarged drawing of one type control line actuating mechanism;
Figure 30 is according to an embodiment of the invention, is positioned to the schematic diagram of the embodiment of the top assembly that is connected with the lower component that makes up control line actuating mechanism shown in Figure 29;
Figure 31 be according to an embodiment of the invention, similar to Figure 30 but have the schematic diagram that cover inserts the top assembly of (land in) lower component and is positioned to the control line actuating mechanism in cleaning control wiring connector zone;
Figure 32 be according to an embodiment of the invention, similar with Figure 30 but have the schematic diagram that cover inserts the top assembly of lower component and activates the control line actuating mechanism that is connected the control line connector;
Figure 33 is the schematic diagram of embodiment according to another embodiment of the invention, that be positioned to the top assembly that is connected with the lower component that makes up optional control line actuating mechanism;
Figure 34 be according to an embodiment of the invention, similar to Figure 33 but have the schematic diagram that cover inserts the top assembly of lower component and is positioned to the control line actuating mechanism in cleaning control wiring connector zone;
Figure 35 be according to an embodiment of the invention, similar with Figure 33 but have the schematic diagram that cover inserts the top assembly of lower component and activates the control line actuating mechanism that is connected the control line connector;
Figure 36 is according to an embodiment of the invention, is used for the schematic diagram of embodiment of the protection of connector mechanism of control line connector;
Figure 37 be according to an embodiment of the invention, similar with Figure 36 but have the schematic diagram of the control line connector of locating during initial the connection;
Figure 38 be according to an embodiment of the invention, similar with Figure 36 but have the schematic diagram of the control line connector that is connected fully;
Figure 39 is the schematic diagram of the alternate embodiment of protection of connector mechanism according to another embodiment of the invention, that be used for the control line connector;
Figure 40 be according to an embodiment of the invention, similar with Figure 39 but have the schematic diagram of the control line connector of locating during initial the connection; With
Figure 41 be according to an embodiment of the invention, similar with Figure 39 but have the schematic diagram of the control line connector that is connected fully.
The specific embodiment
In the following description, in order to understand the present invention, many details are illustrated.Yet what those having ordinary skill in the art will appreciate that is to put into practice the present invention without these details, can realize variations and modifications according to the embodiment that illustrates.
The present invention relates to a kind of technology of being convenient to the well apparatus assembly in the drilling well is connected the down well placement of expectation.For example, system can be configured in lower component drilling well neutralization and connects top assembly and one or more control line subsequently.For example, one embodiment of the present of invention comprise the system that can dispose and be connected and fixed fiber optics sensor screen cloth network in two stage completions.In this embodiment, in case realized connection, continuous light path just can obtain, and from ground and run to the bottom of stratum perforate, turns back to ground then, thereby finishes optical circuit.This connection also can be used to realize other control line, for example the electric control line of various combinations or fluid control line.Can realize repeatedly that control line connects, separates and is connected.The type system can be used for land, offshore platform or the seabed configuration that various environment neutralizations have various downhole component.For example, this system can be used for sandstone control element, punctured element, formation fracturing element (formation fracturing components) with fiber optic detection system and fiber optics sensor, flow control element, or be used for other element of drilling well, completion, maintenance or production operation.
By further example, example of the present invention can comprise the well operations system (well operation system) with two or more stage mounting shafts.The well operations system can comprise lower component, top assembly, the control line in the assembly of top is connected to the connector of control line corresponding in the lower component and the flexible connector of length compensation can be provided for control line and pipe.Here Shuo Ming connected system can be used in methodology and is connected various down-holes control line, comprises order wire, power line, electric wire, optical fiber cable, hydraulic line and other control line.In addition, the upper and lower assembly can comprise various elements and the assembly that is used for the multistage well operations, comprises well completion assemblies, drilling well assembly, logging assembly, accent well group spare (well intervention assemblies), produces assembly and is used for other assembly of well operations.About specific element, above-mentioned and lower component can comprise pipe, shell, extension hanger (linerhangers), formation isolation valves, safety valve, other well yield/control valve, perforation and other formation fracturing instrument, well potted component (for example packer), unthreaded hole container, sandstone control element (for example husky screen cloth and gravel compaction tool), mechanical oil recovery mechanism (artificial lift mechanisms, for example pump or gas lift valve and related accessories), drilling tool, bottom hole assembly, steerable tool, running tool and other downhole component.Please note, in this explanation, term " bottom " is also referred to as first or the guiding device/assembly (the term ＂ lower ＂ also can refer to the first or leadequipment/assembly moved downhole) that moves the down-hole, second or equipment/assembly (the term ＂ upper ＂ can refer to thesecond or later equipment/assembly moved downhole into engagement withthe ＂ lower ＂ unit) subsequently that term " top " is called that the down-hole that is connected with " bottom " unit moves.For example, in horizontal drilling, lower part equipment/assembly is the equipment/assembly that at first moves in the down-hole, promptly moves before the equipment/assembly of top.
With reference to figure 1, the part of connected system 30 is shown with the form of flexible connector 32, and for use in the variation or the change of various downhole components length partly, the axis along system 30 provides sufficient intensity simultaneously.Flexible connector 32 is designed to hold one or more control lines when change in length or change.In the embodiment shown, flexible connector 32 is positioned in the drilling well 34, and comprise that top transition element (upper crossover) 36, this top transition element 36 for example are used to make flexible connector 32 to cooperate with the aboveground element (uphole component) 38 of top completion.Cover cover 40 extends to flexible connector limiting mechanism 43 (for example collet assembly) from top transition element 36 housing 42.Bottom transition element 44 connects the downhole component 46 of flexible connector 32 and down-hole completion.Flexible connector 32 also comprises and is arranged in the pipe 48 that covers cover 40.In the embodiment shown, flexible connector limiting mechanism 43 comprises collet assembly, and interior pipe 48 is connected to deformable collet chuck 50, and collet chuck 50 is positioned at manages 48 lower end.Flexible connector limiting mechanism 43 can (being punctured position shown in Figure 2) come selectivity to activate flexible connector 32 from full extended position to incomplete extended position.
One or more control lines 56 can be contained in the flexible connector 32 or along flexible connector 32.For example, one or more control lines 56 can extend from aboveground position, through top transition element 36, along flexible connector 32 and by bottom transition element 44, as illustrated in fig. 1 and 2.One or more control lines 56 can around the external surface of interior pipe 48 twine circumferentially in case hold stretching, extension with the flexible connector 32 that shrinks.By example, one or more control lines 56 can comprise optical cable, electric connector and/or flexible hydraulic pipe.
Can make ins all sorts of ways connects the element of flexible connector 32.For example, covering cover 40 can be attached to top transition element 36 by one or more hold-down screws, and interior pipe 48 can be attached to top transition element 36 by threaded connector.Cover cover 40 and connect so that between the external surface of inner surface that covers cover and interior pipe 48, provide enough distances, thereby guarantee to be used for the pitch space of the circumferential coils of control line 56, therefore provide protection for control line in this mode.Further, top transition element 36 can be formed with path 58, and for example sinker pathway or surface channel are used to pass one or more control lines 56.In the lower end of flexible connector 32, interior pipe 48 can be threaded onto inner transition part 60, and inner transition part 60 is attached on the collet chuck 50 by one or more hold-down screws 62 again.One or more control lines 56 are advanced along path 63, for example sinker pathway or surface channel, and path 6 forms along housing 42.
As shown in Figure 3, collet chuck 50 can comprise a plurality of finger pieces 64 of being isolated by groove 66, and groove 66 longitudinally is orientated along the substantial distance direction of collet chuck 50.Groove 66 can be the channel form that partially or completely extends through the collet chuck radial thickness.In case applied enough power, groove 66 allows the external diameter of collet chuck 50 to subside.When complete expansion, or when stablizing swelling state following time, the external surface of collet chuck 50 expand into the inner surface profile as the housing 42 of the lockable mechanism 68 of restriction collet chuck 50, and the connector 32 that therefore will stretch remains on its full extended position.It is resettable qualitative that the use of flexible connector limiting mechanism 43 (for example collet chuck 50 and lockable mechanism 68) makes flexible connector have a position.In other words, flexible connector 32 can repeatedly be reset to full extended position.Flexible connector limiting mechanism 43 also provides the position indicator of the position of flexible connector.Note that flexible connector limiting mechanism 43 also can comprise optional member in shear 70, shear pin for example is so that the connector 32 that will stretch when the initial launch of down-hole remains on its full extended position.Equally, the profile of selecting to be used for the outside of lockable mechanism 68 and collet chuck 50 is not limited to diagram, also can use other profile to realize or improves various operating characteristicses.For example, the angle of conjugate profile and length can change based on the required power of application-specific.
The middle part of flexible connector 32 also comprises sealing device 72, and sealing device 72 comprises one or more seals, even so that maintenance is along the sealing of interior pipe 48 when flexible connector 32 is in its full extended position.The seal of sealing device 72 can constitute with structure by various forms, comprises O type ring, the part that is bonded and sealed, V-type pad and other Seal Design and device.In the embodiment shown, when flexible connector 32 was in its full extended position, sealing device 72 was arranged between inner transition part 60 and the housing 42.Like this, the hydraulic coupling that applies in the interior pipe 48 fully is delivered to the down-hole of housing 42 belows.Equally, when flexible connector 32 is in full extended position, because sealing device 72 has the ability that keep-ups pressure, therefore prevent the groove 66 of pressure by collet chuck 50 be back in annular region between pipe 48 and the housing 42 and the outside ring surface between tubing string (managing string) and the shell.By applying of hydraulic coupling, interior pipe is controlled and/or initialization the operation that flexible connector takes place below.For example, when flexible connector was in extended position, the available hydraulic coupling that is applied to the inside of tubing string by flexible connector 32 was carried out the down-hole control line and is connected.
In order to drive flexible connector 32, power down is applied in so that discharge collet chuck 50 from housing 42.The in-profile of lockable mechanism or housing 42 is directed on the collet chuck finger piece 64 in the power that will apply down on the direction of radial inward.Collet chuck 50 subsides to the position that diameter reduces from the expanded radially position, so that interior pipe moves out collet chuck 50, thereby removes and being connected of the lockable mechanism 68 of the in-profile formation of housing 42.In case separate collet chuck 50, interior pipe 48 and cover cover 40 and just allow on direction down, to move.In the embodiment shown, the in-profile of housing 42 is designed to prevent collet chuck 50 motion up on the housing 42.Yet the in-profile of flexible connector 32 and housing 42 can be designed to, and by in-profile that changes housing 42 and the interior pipe 48 that extends collet chuck 50 belows the collet chuck 50 of housing 42 above and belows is all moved.
At least in the illustrated embodiment, when in the separation point position, sealing device 72 is no longer isolated the pressure in the interior pipe 48.Because interior pipe 48 moves down, sealing device 72 moves and arrives inside with interior pipe 48 and holds outline portion, and aforementioned inside holds outline portion and has larger diameter, the seal contact of its not sealed device 72.Yet in other embodiments, even collet chuck 50 separates, isolation also can keep-up pressure by the length that prolongs sealing contact surface.
By an example, flexible connector 32 can be used for two stages connection operations, and wherein control line is also connected by the down-hole.Originally, the bottom well completion assemblies is arranged on the down-hole.Subsequently, the top well completion assemblies is in down-hole operation and by removing predetermined weight but be unlikely to separate collet chucks 50 from housing 42 and overlap and insert the well completion assemblies of bottom.Form control line then and connect, remove extra predetermined weight subsequently, pass through housing 42 by mobile collet chuck 50, so that the connector 32 that will stretch mechanically is actuated into punctured position.In this particular instance, seagoing pipeline hanger (subsea tubing hanger) is landed then.Yet, if desired, can before boll-weevil hanger is landed, reset flexible connector 32 by promoting flexible connector until measuring predetermined upper pulling force (overpull).Predetermined upper pulling force provides the positive position indication of the flexible connector that is in full extended position.
As shown in Figure 5, top assembly 76 moves in the lower component 78, and can be limited by lockable mechanism 106, flush fluid stream passes through bottom control line connector 86 so that clean residual or other Polluted area before connecting bottom control line connector 86 and top control line connector 92 simultaneously.Residual or other pollutant can be discharged in the well by residue port one 07.In this example, lockable mechanism 106 comprises the profile 108 on the inside that is formed on lower component 78, is used for being connected with the corresponding connection parts branch, for example the profile 110 on the pipe 102 of top assembly 76.Corresponding profile 110 can be formed with collet chuck 112, and collet chuck 112 connects profile 108 so that further limit the upper and lower assembly between the flush period of connector zone.
After the flushing process, when top assembly 76 further was connected with lower component 78, collet chuck 112 was forced through profile 108.Top assembly 76 moves in the lower component 78 and to connect second lockable mechanism, 114, the second lockable mechanisms 114 until collet chuck 112 and have and be designed to the fixedly profile 116 of the exterior contour of collet chuck 112, as shown in Figure 6.Second lockable mechanism 114 and first lockable mechanism 106 are vertically isolated, and are positioned to make top control line connector 92 relatively near bottom control line connector 86.In addition, lower component 78 can comprise shoulder 118, and shoulder 118 is positioned to connect so that stop top assembly 76 further to insert in the lower component 78 with the corresponding shoulder 120 of top assembly 76.Collet chuck 112 comprises single collet chuck or a plurality of collet chuck, and for example two collet chucks are caught this collet chuck by the corresponding lockable mechanism of suitably locating.For example, collet chuck 112 can be the collet chuck that is positioned to connect successively first lockable mechanism 106 and second lockable mechanism 114.
In case connector system 74 is positioned in second lockable mechanism, 114 places, top control line connector 92 can form by various mechanism and bottom control line connector 86 and be connected or engage.For example, connector 92 can enter in the connector 86 and is attached thereto by apply pipe pressure in pipe 102 inside 104.In the present embodiment, pressure fluid enters piston chamber 124 and piston 126 by port one 22 guiding, and piston 126 is connected to top control line connector 92, shown in Fig. 7 is further.In case applied enough pressure, piston 126 moves down.The motion of piston 126 forces the extension 96 of top control line connector 92 to enter in the container 90 of bottom control line connector 86, connects so that form the down-hole control line.By connecting control line part 88 and 94, the continuous communication line that provides along system 30 is provided the down-hole control line.The motion of piston 126 expand into the lock ring on the top connector system 74 128 in the profile 129 of lower component 78.Behind piston chamber's 124 cancellation pressure, lock ring 128 axial maintenance top connector systems 74 contact with lower component 78.
Be used for moving the another kind of mechanism and the method that connect top control line connector 92 and bottom control line connector 86 and utilize control line 130, as shown in Figure 8.This embodiment is very similar with 7 illustrated embodiments to Fig. 6, but control line 130 is used for by flow channel 132 pressure fluid being guided piston chamber 124.Then, in case apply enough pressure, piston 126 can make it to be connected most preferred embodiment as shown in Figure 9 with bottom control line connector 86 by mobile top control line connector 92.In case control line 130 can also be connected in the main control line that down-hole or aboveground signal communicate by letter one as connector 92 and 86.This makes does not need extra, independent control line to come the guide pressure fluid to piston chamber 124.
According to an embodiment, the operation of connected system 74 comprises that initial launch lower component 78 is in drilling well 34 and lower component is configured in the drilling well position of expectation.Subsequently, top assembly 76 runs to the down-hole, thereby makes pipe 102 enter container 80.Alignment keys 84 contact float receivers 82 and aim at rotatably top assembly 76 with lower component 78 so that can be connected connector 86 and 92.The lockable mechanism 106 that the motion of top assembly 76 is connected collet chuck 112 limits.In the confined while, washing fluid or gelinite through manage 102 pumped into from ground and by port one 00 in case through residue port one 07 the removing residues of container 90 and connector peripheral region to well.In case the zone is cleaned, collet chuck 112 is pushed through lockable mechanism 106 and enters second lockable mechanism 114 and connects shoulder 118 until shoulder 120.In this, top assembly 76 fully is connected with lower component 78, and connector 86 and 92 is aligned and is used to be connected.Then by manage 102 or control line 130 exert pressure mobile piston 126.By the motion of piston 126, the extension 96 of top control line connector 92 is driven in the container 90 of bottom control line connector 86 so that fully be connected with the connector at down well placement place or cooperate.
Along all places place of system 30, fixing one or more control lines of expectation or control line part.Control line can be fixed by various mechanisms, and the example of these mechanisms is as shown in Figure 10 and 11.For the ease of explaining, in conjunction with flexible connector 32 this technique for fixing is described, yet these technology can be used along the other parts in the system 30.In Figure 10, groove 134 is formed in the external diameter of system element, for example flexible connector 32.Control line, for example control line 56 is fixed in the groove 134, and therefore remains on appropriate position, and is protected in subsurface environment.Control line can comprise optical fiber cable or other the suitable control line that extends along system 30.Further, independent control line or a plurality of control line can be positioned in each groove 134, and perhaps a plurality of grooves 134 can be formed for extra control line.Figure 11 has shown another embodiment, and wherein anchor clamps 136 are used to fix the control line along the element of system 30, for example the control line of the flexible connector 32 in edge.Control line can comprise for example one or more control lines of optical fiber-optical cable, electric wire, fluid line or other suitable control line form.
Mechanism's (for example spring mechanism shown in Figure 12-14 138) that connector mechanism 74 can also be designed to by other type connects top control line connector 92 and bottom control line connector 86.In the present embodiment, spring mechanism 138 is installed on the top assembly 76 and comprises spring 140, and spring 140 is positioned at the shoulder 142 of pipe 102 and carries between the shell 144 of top control line connector 92.In certain embodiments, the compression spring 140 make top assembly 76 fully overlap the access lower component 78 in after, the control line connector is connected.Spring 140 can also provide buffering for the control line connector, and bias voltage top control line connector 92 makes it to be connected with bottom control line connector 86 simultaneously.In certain embodiments, spring 140 can be by prestrain.
Except the alternative of spring mechanism 138 or spring mechanism 138, connector mechanism 74 also can comprise soft-landing system (soft landing system) 145.By soft, the controlled connection of top control line connector 92 with corresponding bottom control line connector 86, soft-landing system 145 allows assemblies 76 covers in top to insert in the lower component 78.Preferred example as shown in figure 12, an embodiment of soft-landing system 145 comprises one or more soft landing pistons 146, and each soft landing piston 146 is slidably mounted in the cylinder 148, and cylinder 148 is formed on the expansion area 150 of shell 144.Each soft landing piston 146 is connected to soft landing bar 152, and soft landing bar 152 extends through cylinder 148 and is slidingly received in the corresponding bar opening 154 that forms on the shell 144.Spring 155 can be around 152 location of the bar in the cylinder 148 so that biases piston 146.In addition, cylinder 148 can be supplied fluid, and hydraulic fluid for example is so that suppress piston 146 moving along cylinder 148.When each piston 146 when cylinder 148 moves, hydraulic fluid is in being forced through piston with piston motion side in the opposite direction and entering cylinder 148 on the opposite side of piston.This pressure of hydraulic fluid is moved provides the inhibition effect, makes the level and smooth and reliable fit of being convenient to top control line connector 92 and bottom control line connector 86 to illustrate in greater detail below.
Each piston 146 is also connected to shift(ing) ring 156, and the outside of shift(ing) ring 156 edge pipes 102 slidably.Piston 146 can be connected to shift(ing) ring 156 by bar 158, shown in the external view of Figure 14 is further.Shift(ing) ring 156 can comprise one or more vertical passages or port one 60, be used for holding slidably the plug-in type extension (stinger style extensions) 96 of one or more correspondences of control line connector 92, the best illustration shown in the sectional view of Figure 13.Plug-in type extension 96 is installed in the expansion area 150 of shell 144, and when the shift(ing) ring 156 quilt expansion area 150 of more close shell 144, promptly when gap shown in Figure 14 161 was closed, plug-in type extension 96 moved through its corresponding port 160.Alternatively, extension 96 can be the elastic component of installing through spring 162, the deviation that occurs during spring 162 helps to compensate top control line connector 92 and bottom control line connector 86 is connected.Barrier film or other lid 164 also can be positioned on each port one 60 and invade in the top control line connector 92 so that prevent residue or other pollutant.
Roughly with reference to the accompanying drawings 15-17, various views are lower component 78 of holding top assembly 76, and wherein soft-landing system 145 has been integrated.Embodiment according to the above description, lower component 78 can comprise aims at receiver 82, aims at receiver 82 and is positioned to be connected so that locate top control line connector 92 rotatably with respect to bottom control line connector 86 with the alignment keys 84 of top assembly 76.In addition, soft-landing system 145 can be used in combination with rinse-system 98 and lockable mechanism 106 so that near desired region location irrigation ports 100, for example near bottom control line connector 86, shown in Figure 15 and 16.Shown in the preferred example among Figure 16, barrier film or cover 164 and can also be positioned in the lower component 78 so that stop residual nothing or other pollutant to flow in the container 90 of bottom control line connector 86.
According to specific DRILLING APPLICATION, the quantity of the quantity of control line 56 and soft landing piston 146 and the bar that is associated can change.In an example, as shown in figure 18, connected system 74 and soft-landing system 145 adopt two independently control line 56 and quadruplet piston 146 and soft landing bars 152.Similarly, various lids 164 can be oriented to prevent that connector is by residue or other contaminants.As shown in figure 19, each lid 164 can form the barrier film 166 of (the score lines) 168 that have streakline.Streakline 168 can make each extension 96 of top control line connector 92 wear out to cover 164 and form with bottom control line connector 86 and to be connected, and does not produce the separate cover fragment of the connection and the operation of interfering well lower connector.
When the connector zone is rinsed and top assembly 76 when further moving in the lower component 78, shift(ing) ring 156 connects lower component 78, shown in Figure 20-22.Like this, soft-landing system 145 slows down or suppresses the motion towards the bottom control line connector 86 of correspondence of top assembly 76 and top control line connector or connector 92.This guarantees that the extension 96 of portion's control line connector 92 moves the container 90 to bottom control line connector 86, and controllably by any residue lid 164, shown in the preferred example of Figure 20.Soft-landing system piston 146 is cooperated with corresponding spring 155, and the hydraulic pressure suppression fluid in the cylinder 148 suppresses and control top connector 92 motions towards bottom connector 86, shown in Figure 21 and 22.At last, top control line connector s92 advances and connects by residue lid 164 and with corresponding bottom control line connector 86, so that finish soft landing and formation down-hole control line is connected, shown in the preferred example of Figure 23.
In the application of using spring mechanism 138 and soft-landing system 145, an example of landing sequence is as follows.At the beginning, shift(ing) ring 156 forms with lower component 78 and contacts.Subsequently, control the motion of shift(ing) rings 156 so that controllably connect top control line connector 92 and bottom control line connector 86 by piston 146.By selecting suitable flexible ratio (coefficient) to determine to be applied to the maximum, force of connector 92 and 86 for the various springs that act on the connector.In addition, can determine the speed that formation is connected by the viscosity of the hydraulic fluid selecting to adopt in piston size for example, corresponding cylinder hole dimension and the cylinder 148.
No matter whether forming control line by spring mechanism 138, soft-landing system 145 or active connected system connects, shown in Fig. 5-9, when in case top assembly 76 fully is connected with lower component 78, can use extra down-hole maintaining body 170 that top assembly 76 is fixed to lower component 78, as shown in figure 24.In this example, lower component 78 comprises bottom locking profile 172, and bottom locking profile 172 is positioned at the below of one or more bottoms control line connector 86.Bottom locking profile 172 be designed to the bottom that is positioned at top assembly 76 on corresponding profile 174 connect.As an example, Dui Ying profile 174 can be provided by collet chuck 176.
Roughly with reference to the accompanying drawings 25 and 26, shown the embodiment of control line interrupter 178.In case when connector 92 and 86 linked together, control line interrupter 178 made it possible to use independent control line supply pressure fluid to communicate by letter with down-hole and/or aboveground signal to piston chamber 124, as the above-mentioned brief description of Fig. 6-9.In example shown in Figure 25, control line interrupter 178 is attached to top assembly 76 and comprises main body 180, and main body 180 can be attached on the top assembly 76 or form the part of the whole of top assembly 76.Control line interrupter 178 is used to prevent that the connection from control line 130 to top control line connector 92 fully is connected with bottom control line connector 86 until top control line connector 92.
In the illustrated embodiment, main body 80 comprises the path 182 that hydraulically is connected to control line 130.Main body 180 also comprises the path 184 that hydraulically is connected to piston chamber 124 and hydraulically is connected to the path 186 of top control line connector 92.In main body 180, piston/bar assembly 188 installs slidably so that the fluid between control access 182 and the path 184,186 and the connection of pressure.
When top assembly 76 moved in the down-hole, control line interrupter 178 was in structure as shown in figure 25.In this structure, shear pin 190 is connected in the hole 192 of fixator 194, and shear pin 190 also is connected in the hole 196 of passing bar 198, and bar 198 forms the part of piston/bar assembly 188.Fixator 194 is connected with main body 80 by being threaded, and piston/bar assembly 188 is locked on the fixator 194 shear pin 190 so that the axially-movable when preventing to move.In this structure, path 182 hydraulically is connected to path 184 through the hole 200 of main body 180.Yet path 182 is isolated from path 186 by piston component 202, and piston component still is the part of piston/bar assembly 188.Locating snap ring 204 is maintained at the expanded radially position by bar 198, as shown in the figure.
In case connector system 74 is positioned at second lockable mechanism, 114 places, by give control line 130 exert pressure, by path 182, hole 200, path 184 and enter piston chamber 124, be connected thereby top control line connector 92 can be formed with bottom control line connector 86.Another path 206 also from path 182 guide pressure fluids so that act on the piston 208 of piston/bar assembly 188.The pressure that acts on the piston 208 causes the power that is applied on the shear pin 190 through bar 198.Select shear pin 190 materials and geometry, thereby make and be higher than when piston 208 is exposed to that shear pin 190 fractures when fully connecting the required pressure of top control line connector 92 and bottom control line connector 86.After shear pin 190 fractureed, the pressure in the path 206 further acted on the piston 208 and piston/bar assembly 188 is moved to position shown in Figure 26.
When control line interrupter 178 was in structure shown in Figure 26, locating snap ring 204 radially collapsed in the groove 210 of bar 198, still was connected and fixed the groove 212 in the device 194 simultaneously.By while link slot 210 and 212, locating snap ring 204 is locked into actuated position with piston/bar assembly 188, and prevents further axially-movable.In this position, piston 214 is isolated path 182 and path 184, and closes the actuation pressure in the piston chamber 124.Piston 208 continues to make path 206 and path 184 to isolate, hole 200 with have path 182 and be connected with path 186.Therefore, from control line 130, path 182, hole 200, path 186, top control line connector 92 and bottom control line connector 86, be connected to bottom control line 88.In this position, control line 130 hydraulically is connected to control line 88, and isolates with piston chamber 124.
In another embodiment of the control line connected system shown in Figure 27 and 28, lower component 78 moves to the down-hole earlier and enters in the drilling well 34, disposes top assembly 76 then.As an example, lower component 78 can have the form of bottom well completion assemblies, this bottom well completion assemblies has gravel and fills out envelope instrument (gravel packing tool), lower component 78 comprises various elements, for example packer 220, flow/flow control valve 222, one or more screen cloth 224 and fill out other auxiliary or the element 226 that uses in the envelope operation at the gravel of expectation.In addition, lower component 78 comprises at least one the control line connector 86 that is connected to control line part 88.When using when fill out the envelope operation at gravel in, control line part 88 extends through screen cloth 224 downwards.
In this example, be provided with after gravel is filled out envelope and service aid fetched, top assembly 76 moves to lower component 78 in the down-hole.Top assembly 76 is arranged on the pipe 228 in the down-hole, and can comprise various elements, for example tubing anchor (tubing anchor) 230 and the top control line connector 92 that is connected to control line part 94.As an example, when socket, top assembly 76 can have the insertion tube form of inserting the lower component container, but also can use other syndeton.
As Figure 28 best shown in, top assembly 76 moves in the down-hole with lower component 78 and is connected.After top assembly 76 arrived lower component 78, top control line part 94 formed with bottom control line part 88 and is connected so that form wet (the wet mate connection) 232 that be connected.Wet being connected has at ground location and is attached to or is used in the ability of setting up the connection of light, electricity, hydraulic pressure and/or other type between the underground equipment of lower component 78.Realize wet 232 the formation of being connected through control line actuating mechanism 234, motion by one in control line connector 86 and 92 or both.
Figure 29 has shown an embodiment of control line actuating mechanism 234.In this embodiment, control line actuating mechanism 234 is connected to top control line connector 92 so that mobile top control line connector 92 makes it to be connected with bottom control line connector 86.As shown in the figure, the control line actuating mechanism comprises the piston 236 that is installed to top assembly 76 movably.Piston forms first air-pressure chamber (firstatmospheric chamber), 238, the first gas compartments 238 can optionally be connected to annular canister (annulus) on every side through the path 240 that extends through piston 236.Alternatively, first air-pressure chamber 238 selectively is connected to special-purpose flowline.Pressure communication by path 240 is blocked member 242 (for example rupture disk, safety valve or other suitable mechanism) sealing at the beginning.Therefore, in case apply enough pressure, the pressure in the annular canister for example, fluid and pressure can only guide into first air-pressure chamber 238, so that remove barrier structure 242, for example destroy dish.
Control line actuating mechanism 234 comprises that also second air-pressure chamber, 244, the second air-pressure chambers 244 are connected to control room 246 through path 248.Restriction choke 250 is arranged on the path 248 so that the fluid flow of control 246 to second air-pressure chambers 244 from the control room.Restriction choke 250 for example can comprise the flow region that reduces or be arranged on independent component in the path 248.In illustrated example, the liquid 252 that moves of the piston 236 that slows down is filled in control room 246, and is for example oily, so that can control the motion of top control line connector 92 and bottom control line connector 86.Particularly, in case at enough pressure of 242 last times of barrier structure, path 240 is opened, and is used for fluid and flows to first air-pressure chamber 238.Flow to pressure mobile piston 236 on the direction of second air-pressure chamber 244 of the fluid in first air-pressure chamber 238.Yet because restriction choke 250, the oil in the control room 246 only can move in second air-pressure chamber 244 with the speed of control.This slows down and the motion of control piston 236 and top control line connector 92.Note that attachment devices such as flap valve, safety valve, rupture disk or elastic diaphragm can be installed in series with restriction choke 250, to avoid too early fluid communication between the control room 246 and second air-pressure chamber 244.
Roughly with reference to figure 30-32, shown an embodiment who assembly 76 covers in top is linked into the connection of order in the lower component 78 and control line connector 86,92 subsequently.In this embodiment, control line actuating mechanism 234 is described similar to Figure 29.At the beginning, lower component 78 is positioned at the down-hole.Bottom control line connector 86 can be connected to expansion loop 254 in case when lower component is moved towards the down-hole balanced drilling pressure and control line internal pressure.Expansion loop 254 can be connected to bottom control line connector 86, thereby with after top control line connector 92 is connected, the outlet of expansion loop 254 is covered by top control line connector 92.Like this, can set up level and smooth inside diameter hole, for example so that the installation of the optical fiber that is connected by wetting.In addition, by covering 256, rupture disk for example, can with prevent that residue and other pollutant from entering control line connector 86 before top control line connector 92 is connected.
As shown in figure 30, top assembly 76 moves towards lower component 78 in the down-hole.During socket, aim at receiver 82 or other deployment mechanism and can be used for respect to lower component 78 positioning orientating top assembly 76 rotatably.Top assembly 76 moves until top assembly 76 towards lower component 78 and is socketed in the lower component 78, as shown in figure 31.At this moment, top control line connector 92 still keeps separating with bottom control line connector 86, thus fluid down pump to control line part 94 with top control line connector 92 in case connector 86 with wash any residue from the connector join domain before 92 are connected.Residue has been removed in the place that the reliable control line that flushing is operated in needs the realization expectation connects.
After the connector zone rinses out residue, apply the pressure that is enough to destroy rupture disk or other barrier structure 242 that is suitable for by annular canister or special-purpose control line.When exerting pressure, downhole fluid is full of first air-pressure chamber 238 so that produce the pressure differential of passing piston 236.As a result, piston 236 makes top control line connector 92 move to bottom control line connector 86 and pass and covers 256.For example, top control line connector 92 can pass rupture disk so that fully cooperate with bottom control line connector 86, shown in figure 32.Restriction choke 250 between the control room 246 and second air-pressure chamber 244 guarantees that top control line connector 92 cooperates with bottom control line connector 86 with the speed of control.For example when optical fiber when the control line pumping, an optional lockable mechanism, for example C type ring or other suitable lockable mechanism can be used in and prevent separating of top connector 92 and bottom connector 86.Also can be used in the motion and the vibration that make the control line connector by the hydraulic coupling of injecting second air-pressure chamber 244 and keep minimum.
Figure 33-35 has shown another embodiment of control line actuating mechanism 234.In this embodiment, control line actuating mechanism 234 comprises electric actuator 258, and electric actuator 258 electrifications come mobile top control line connector 92 and bottom control line connector 86, they is connected so that form wet being connected.As an example, electric actuator 258 can comprise various types of actuators, comprises linear actuators, based on the motor of actuator with based on the solenoid of actuator.Electric actuator 258 can be by battery 260 power supply, and battery 260 also can be used for to being installed on the electric actuator or controller 262 power supplies of annex.Alternatively, can provide electric power by the cable that is connected to ground location.Controller 262 can be designed to respond appropriate control signals, for example is sent to the pressure pulse of down-hole by annular canister.Yet, comprise that other control signal of the pressure signal of the signal of telecommunication and other type can be used in combination with controller 262, so that control is used for the electric actuator 258 of top control line connector 92 motions.The use of electric actuator 258 can be reversibly with can repeatedly form control line and be connected.In other words, top control line connector 92 can optionally be connected and repeatedly separate with bottom control line connector 86.
At socket well group spare with form in wet being connected, the mode of occupation of electric actuator 258 is similar to the mode of occupation of above-mentioned pressure actuated mechanism.As shown in figure 33, lower component 78 is positioned at the down-hole at the beginning.Bottom control line connector 86 can be connected to expansion loop 254 so that balanced drilling pressure and control line internal pressure.Expansion loop 254 can be connected to bottom control line connector 86, thereby with after top control line connector 92 is connected, the outlet of expansion loop 254 is covered by top control line connector 92.Also can with prevent that with lid 256 residue and other pollutant from entering control line connector 86 before top control line connector 92 is connected.In addition, seal 264 also can be used in bottom connector or top connector 92 so that form the repeatability that control line connects.
Aim at receiver 82 or other aligning guide and can be used for once more with respect to lower component 78 positioning orientating top assembly 76 rotatably, so that suitable socket, as shown in figure 34.At this moment, top control line connector 92 still keeps separating with bottom control line connector 86, thus fluid down pump to control line part 94 with top control line connector 92 in case connector 86 with wash any residue from the connector join domain before 92 are connected.Flushing action is to have removed residue in the place of the reliable control line connection of needs realization expectation.
After rinsing out residue from the connector zone, appropriate signals is sent to controller 262 towards the down-hole.Controller 262 starts the motion of electric actuator 258, and makes top control line connector 92 towards 86 motions of bottom control line connector.Electric actuator 258 is selected to control line connector 92 is moved to control line connector 86 with the speed of control, so that guarantee the suitable cooperation of control line connector, as shown in figure 35.In addition, for example when optical fiber when the control line pumping, an optional lockable mechanism, for example C type ring or other suitable lockable mechanism can be used in and prevent separating of top connector 92 and bottom connector 86.If desired, extra signal can be sent to the controller 262 of instruction electric actuator 258, separates and is connected so that control line is connected.
During the down-hole control line is connected to form, the reliable acquisition that is connected of the expectation that residue and other pollutant can the Interference Control lines.During the control line connector connected, protection of connector mechanism can be used in protection control line connector and avoids infringement, and helps to provide cleaning ambient.One or more protection of connector mechanism can be used in independent control line connector or a plurality of control line connector.
Roughly, shown an embodiment of control line protection of connector mechanism 266 with reference to Figure 36-38.In this embodiment, bottom control line connector 86 is coated with flapper valve 268, and flapper valve 268 is positioned to sealed lower portion control line connector 86 and prevents that residue from entering control line.Flapper valve 268 is installed to lower case 270 by spring 272 (for example torsionspring).In addition, lower case 270 be slidably mounted on the bottom connector conduit 273 and through spring 274 at bias voltage on the direction of top control line connector 92.Lower case 270 also can comprise one or more ports 276, so that passing through of streaming flow for example is used to wash residue.When flapper valve 268 closures, the end of containment member 278 hermetically sealed connectors disturbs bottom control line connector 86 so that prevent residue.Further, one or more seals 280 can be positioned between lower case 270 and the bottom connector conduit 273, enter lower case 270 and bottom connector conduit 273 so that prevent residue.
In this embodiment, bottom control line connector 86 also can be connected to expansion loop 254 by lower case 270, so that balanced drilling pressure and control line internal pressure.Expansion loop 254 can be connected to bottom control line connector 86, thereby with after top control line connector 92 is connected, the outlet of expansion loop 254 is covered by top control line connector 92.Like this, can set up level and smooth inside diameter hole.
Protection of connector mechanism 266 also comprises upper case 282, and upper case 282 is installed on the top connector conduit 284.Upper guard-plate valve 286 is installed in the outlet of upper case 282 by spring 288 (for example torsionspring).Port 290 can roughly form by upper guard-plate valve 286 in the axial direction, so that can make fluid flow, is used for rinsing out residue from the connector zone.Further, biasing member 292, for example spring or Belleville packing ring are installed between the shoulder 294 of upper case 282 and top connector conduit 284.
Control line actuating mechanism 234, in for example above-mentioned control line actuating mechanism one is used to make upper case 282 towards lower case 270 motions, as shown in figure 36.Then, fluid pumping down is by the top connector conduit 284 and the port 290 of top control line part 94, so that remove attached to any residue on the under shield valve 268.Because upper case 282 promoted down further, so its contact lower case 270 and promote lower case 270 down, as shown in figure 37.Because lower case 270 is promoted by upper case 282, spring 274 is compressed and bottom connector conduit 273 moves through flapper valve 268 and flapper valve 286, as shown in figure 38.Finally, bottom connector conduit 273 contacts with top connector conduit 284 by moving, for example so that realize wet being connected that seal through seal 296.Yet, in some applications, there is no need to seal upper and lower connector conduit.Biasing member 292 has been eliminated any gap between bottom connector conduit 273 and the top connector conduit 284.
Diagram protection of connector mechanism 266 allows to connect sealed and sealing once more.Therefore, top control line connector 92 can be connected repeatedly according to multiple purpose with bottom control line connector 86, for example isolates the top completion and/or tubular storehouse (tubing hangar) is installed.Further, biasing member 292 is given the top control line connector application of force and is made it to keep in touch with bottom control line connector, so that the influence of any axially-movable between the connector is minimized, for example, the forward and backward motion of optical fiber is installed.
Figure 39-41 shows another embodiment of protection of connector mechanism 266.In this embodiment, protection of connector mechanism 266 comprises slide lid 298, and slide lid 298 is attached on the bottom control line connector 86 or annex.Slide lid 298 can linearity or rotation mode slide so that optionally cover and open bottom control line connector 86.In addition, slide lid 298 comprises passage 300, and when slide lid 298 moved to open position, passage 300 allowed top control line connector 92 to pass through.Slide lid 298 also can be attended by barrier structure 302, and for example rupture disk enters bottom control line connector 86 so that further prevent residue.
In addition, bottom control line connector 86 also can be connected to expansion loop 254 so that balanced drilling pressure and control line internal pressure.In this embodiment, expansion loop 254 is connected to bottom control line connector 86, thereby with after top control line connector 92 is connected, the outlet of expansion loop 254 is covered by top control line connector 92.The result can set up level and smooth inside diameter hole.
When top assembly 76 was socketed in the lower component 78, profile 304 moved to open position (as shown in figure 40) to slide lid 298 from make position (as shown in figure 39).In this stage, fluid pumping down is by top control line connector 92, so that wash residue from the control line join domain.Then, top control line connector 92 is moved until top control line connector 92 through suitable control line actuating mechanism 234 and connects bottom control line connector 86 to form wet being connected.One or more seals 306 can be used to seal this connection.If top assembly 76 is pulled up and when separating with lower component 78, profile 308 moves to make position to slide lid 298 so that protection bottom control line connector prevents that residue from entering.Slide lid 298 also can be biased into the position of expectation, and for example make position, and biased element can be positioned to help the sealing between slide lid and the lower component 78.
Although the specific embodiment of control line protection of connector mechanism 266 has been described, note that protection mechanism can arrange with alternate positions.For example, can on bottom and/or top control line connector, use one or more flapper valves.One or more slide lids similarly can be installed near bottom and/or top control line connector.In addition; the protection mechanism of flapper valve and enough other types of slide lid energy substitutes; for example ball valve, fragile crown cap or elastic diaphragm; these protection mechanisms begin preceding covering connector in engagement process; in engagement process, expose connector, and/or when separating top completion and bottom completion hermetically sealed connector once more.
Note that also the foregoing description provides a plurality of examples of unique down-hole connected system and has been used to form the method that the down-hole connects.But, this system can use in various well environments and various drillng operations in.Therefore, being used to form the particular element that the down-hole connects can be adjusted so that adapt to different environment and application with process steps.For example, the upper and lower assembly can be included in the various element that uses in the various drillng operations (for example drilling operation, well processing operation, well operations that production operation is relevant with other).In addition, the size of element, control line connector and orientation can change or regulate so that adapt to specific well operations.Further, the residue washing fluid can transmit from ground, provides or supplies through the combination of the fluid of ground fluid and storage from the storage device that is loaded with top and/or lower component.The control line actuating mechanism can also be operated through different types of energy, for example hydraulic energy source, electric energy, source of mechanical energy, the pressure energy that is applied to annular space or pipe or other energy.
Therefore, although top clear in detail some embodiments of the present invention, under the situation that does not break away from instruction of the present invention, various possible variations are conspicuous to those skilled in the art.This variation is included in the protection scope of the present invention that is defined by the claims.
Claims (29)
1. well system comprises:
Can be positioned at the lower component in the drilling well, described lower component has bottom control line connector;
The top assembly that can be connected with the lower component at down well placement place, described top assembly has top control line connector; With
Control line actuating mechanism, described control line actuating mechanism optionally are used in top assembly socket after lower component, and top control line connector is connected with bottom control line connector.
2. according to the well system of claim 1, wherein the response of control line actuating mechanism is applied to the pressure in the annular canister of top assembly.
3. according to the well system of claim 1, wherein the control line actuating mechanism comprises electric actuator, and this electric actuator drives top control line connector and is connected with bottom control line connector.
4. according to the well system of claim 1, wherein the control line actuating mechanism comprises and is directed the into pressure-actuated piston of air-pressure chamber.
5. according to the well system of claim 4, wherein the control line actuating mechanism comprises the fluid reservoir that is connected with the path with restriction choke, and this fluid reservoir is discharged fluid through piston motion by described path.
6. according to the well system of claim 2, wherein the control line actuating mechanism also comprises the pressure barrier structure, and this pressure barrier structure prevents that the actuating of control line actuating mechanism is applied in the annular canister until enough pressure.
7. according to the well system of claim 1, also comprise protection of connector mechanism, enter in the control line connector of upper and lower at least one so that prevent residue.
8. according to the well system of claim 7, wherein protection of connector mechanism is made of flapper valve.
9. according to the well system of claim 7, wherein protection of connector mechanism comprises a pair of flapper valve, and described a pair of flapper valve is positioned to protect bottom control line connector and top control line connector.
10. according to the well system of claim 7, wherein protection of connector mechanism comprises slide lid.
11. according to the well system of claim 10, wherein protection of connector mechanism also comprises the rupture disk of cooperating with slide lid.
12. one kind forms downhole wet and cooperates the method that connects, and comprises the steps:
The bottom well completion assemblies is positioned in the drilling well;
The top well completion assemblies is socketed in the well completion assemblies of bottom; With
After top well completion assemblies cover is received the bottom well completion assemblies, use fluid pressure come the top control line connector of mobile top well completion assemblies and bottom well completion assemblies bottom control line connector so that they be connected.
13., also comprise step: with before bottom control line connector is connected, wash the residue of connector join domain at top control line connector according to the method for claim 12.
14. according to the method for claim 13, wherein cleaning step comprises with fluid flushing connector join domain.
15., also comprise step: protect in the control line connector of upper and lower at least one with protection of connector mechanism, make it to avoid the infringement of residue according to the method for claim 12.
16., wherein use the step of fluid pressure to comprise: use the hydraulic pressure energy that applies by annular canister around the top well completion assemblies according to the method for claim 12.
17., also comprise step: drive being connected of top control line connector and bottom control line connector with biased element according to the method for claim 12.
18. one kind forms downhole wet and cooperates the method that connects, and comprises the steps:
The bottom well completion assemblies is positioned in the drilling well;
The top well completion assemblies is socketed in the well completion assemblies of bottom; With
After top well completion assemblies cover is received the bottom well completion assemblies, use electric actuator come the top control line connector of mobile top well completion assemblies and bottom well completion assemblies bottom control line connector so that they be connected.
19., also comprise step: with before bottom control line connector is connected, wash the residue of connector join domain at top control line connector according to the method for claim 18.
20. according to the method for claim 19, wherein cleaning step comprises with fluid flushing connector join domain.
21., also comprise step: protect in the control line connector of upper and lower at least one with protection of connector mechanism, make it to avoid the infringement of residue according to the method for claim 18.
22., wherein use the step of electric actuator to comprise: utilize electric actuator to come mobile top control line connector according to the method for claim 18.
23., also comprise step: drive being connected of top control line connector and bottom control line connector with biased element according to the method for claim 18.
24. a down-hole connected system comprises:
Can be positioned at the lower component in the drilling well, described lower component has bottom control line connector;
The top assembly that can be connected with the lower component at down well placement place, described top assembly has top control line connector; With
Protection of connector mechanism; described protection of connector mechanism is at the residue blocking position and allow can optionally move between top control line connector and the position that bottom control line connector is connected, so can repeat connection and separate upper and lower control line connector.
25. the down-hole connected system according to claim 24 also comprises the control line actuating mechanism, described control line actuating mechanism optionally is used in top assembly socket after lower component, and top control line connector is connected with bottom control line connector.
26. according to the down-hole connected system of claim 25, wherein control line actuating mechanism response is applied to the pressure in the annular canister of top assembly.
27. according to the down-hole connected system of claim 25, wherein the control line actuating mechanism comprises electric actuator, this electric actuator drives top control line connector and is connected with bottom control line connector.
28. according to the down-hole connected system of claim 24, wherein protection of connector mechanism comprises a pair of flapper valve, described a pair of flapper valve is positioned to optionally cover top control line connector and bottom control line connector.
29. according to the down-hole connected system of claim 24, wherein protection of connector mechanism comprises slide lid, described slide lid is positioned to optionally cover at least one in top control line connector and the bottom control line connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810008771XA CN101498213A (en) | 2008-01-29 | 2008-01-29 | Downhole wet mixing connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810008771XA CN101498213A (en) | 2008-01-29 | 2008-01-29 | Downhole wet mixing connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101498213A true CN101498213A (en) | 2009-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810008771XA Pending CN101498213A (en) | 2008-01-29 | 2008-01-29 | Downhole wet mixing connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498213A (en) |
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2008
- 2008-01-29 CN CNA200810008771XA patent/CN101498213A/en active Pending
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Application publication date: 20090805 |