CN204703811U - Sand control hanger - Google Patents
Sand control hanger Download PDFInfo
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- CN204703811U CN204703811U CN201520334657.1U CN201520334657U CN204703811U CN 204703811 U CN204703811 U CN 204703811U CN 201520334657 U CN201520334657 U CN 201520334657U CN 204703811 U CN204703811 U CN 204703811U
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model is a kind of sand control hanger, comprise a top connection, top connection outer wall upper sleeve gasket is provided with a hydraulic cylinder, top connection inner wall lower is connected with a central tube, hydraulic cylinder outer wall bottom is arranged with an outer tube, the unidirectional locking mechanism in axial sliding of an energy is arranged with above outer tube outer wall, outer tube outer wall is positioned at below locking mechanism and is arranged with a sealing mechanism, outer tube outer wall is positioned at below sealing mechanism and is socketed with an anchor mechanism that can axially engage with radial direction, anchor mechanism bottom is fixedly connected with outer tube outer wall bottom, is connected with lower contact bottom anchor mechanism; Central tube bottom is connected with the releasing gadget of energy axial restraint lower contact, and releasing gadget bottom and lower contact inwall lean.This sand control hanger latus rectum is large, simple and compact for structure, and be provided with special structure and realize setting step by step, resistance to overturning is strong, and site operation is safe and reliable, ensure that sand control effect, extends life of equipment, reduces field produces cost.
Description
Technical field
The utility model relates to sand control technical field, particularly relates to a kind of sand control hanger.
Background technology
Due to the impact of the factors such as geology, oil producing operation, brill completion, along with deepening continuously of oil field development, under certain producing pressure differential, oil well, gas well, well start to shake out successively, especially loose sandstone oil reservoir, even more serious.Shake out and sand can be caused to bury payzone, cause reduce or stop production, sand grains at a high speed causes ground and underground equipment to double wearing and tearing, more seriously shakes out and can cause formation depletion and cave in, cause casing failure that oil well is scrapped, poor stability also can cause serious economic loss.In order to solve sand production problem, the research and apply of sand control technique is extensively carried out in each oil field.Sand control can make reservoir sand remain on the home position in its stratum to greatest extent and not enter pit shaft with formation fluid; the destruction of stratum original permeability is made to drop to minimum level; the production equipment of protection producing well, existing sand control technique mainly contains mechanical sand control, chemical sand control and arch sand control.
Sand control hanger as the important tool in oil machinery sand control technique field, for the normal production of oil gas water well and various down-holes technological measure carry out smoothly provide effective means.But, existing sand control hanger give up after in latus rectum too small, be generally internal diameter≤110mm, under the instrument that subsequent technique adopts can not be met, enter requirement; When setting, do not have special latch-up structure, the safety of site operation is poor; Also there is the problems such as frame for movement more complicated, length are larger in addition, be not easy to operation.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of sand control hanger, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of sand control hanger, this sand control hanger latus rectum is large, simple and compact for structure, be provided with special structure to realize setting step by step, resistance to overturning is strong, and site operation is safe and reliable, ensure that sand control effect, extend life of equipment, reduce field produces cost.
The purpose of this utility model realizes like this, a kind of sand control hanger, described sand control hanger comprises a top connection, described top connection outer wall upper sleeve gasket is provided with a hydraulic cylinder that can move axially, described top connection inner wall lower is connected with a central tube, described hydraulic cylinder inner wall lower sealing shroud is located on described central tube outer wall, described top connection bottom end face, form the first seal cavity between described hydraulic cylinder inwall and described central tube outer wall, the position described central tube sidewall being positioned at described first seal cavity is provided with the first through hole; Described hydraulic cylinder outer wall bottom is arranged with an outer tube, and being arranged with one above described outer tube outer wall can along the unidirectional locking mechanism in axial sliding of described outer tube, and described locking mechanism top seal is sheathed on described hydraulic cylinder outer wall; Described outer tube outer wall is positioned at below described locking mechanism and is arranged with a sealing mechanism that can move axially along described outer tube, lean bottom described sealing mechanism top and described locking mechanism, described outer tube outer wall is positioned at below described sealing mechanism and is socketed with an anchor mechanism that can axially engage with radial direction, described anchor mechanism bottom is fixedly connected with described outer tube outer wall bottom, is connected with lower contact bottom described anchor mechanism; Described central tube bottom is connected with the releasing gadget of lower contact described in energy axial restraint, and described releasing gadget bottom and described lower contact inwall lean.
In a better embodiment of the present utility model, described locking mechanism comprises the first slip ring that a top seal is sheathed on described hydraulic cylinder outer wall, described first slip ring inner wall lower is sheathed on described outer tube outer wall, described outer tube outer wall is also socketed with a split ring, described split ring top and described first slip ring bottom end face lean, and are provided with unidirectional backing stop structure between described split ring and described outer tube outer wall, described outer tube outer wall is positioned at below described split ring and is socketed with the second slip ring, lean bottom described second slip ring top and described split ring, described first slip ring outer wall is provided with one first flange, one second flange is provided with bottom described second slip ring outer wall, described first slip ring outer wall is positioned at below described first flange and is socketed with a locking ring, described locking ring inner wall lower is socketed in described second slip ring outer wall top, described locking ring internal diameter is greater than the external diameter of described split ring, described locking ring top and described first flange lower surface lean, lean with described second flange upper surface bottom described locking ring, described second flange sidewall is connected by the first shear pin with between described outer tube.
In a better embodiment of the present utility model, described cylinder lower is positioned at described first seal cavity place and is provided with the first conical section that diametrically descends convergent, described first slip ring inwall top is provided with the first taper surface mated with described first conical section, described first slip ring top is provided with the first link slot of upper opening, and described first slip ring and described hydraulic cylinder are provided with the first fixing pin for circumference location at described first link slot place; Described unidirectional backing stop structure comprises the second circular saw section coordinated with described first annular toothed segment of the first annular toothed segment and the described split ring inwall setting arranged above described outer tube outer wall; Described first slip ring outer wall bottom, described second slip ring outer wall top are provided with the first rectangular thread, described locking ring inwall is provided with the second rectangular thread, and described locking ring is connected by described first rectangular thread, described second rectangular thread with described first slip ring, described second slip ring.
In a better embodiment of the present utility model, described sealing mechanism comprises the annular upper shield being sheathed on and described outer tube outer wall can move axially, top end face and the described locking mechanism bottom end face of described annular upper shield lean, described outer tube outer wall is positioned at described annular upper shield bottom and is arranged with a packing element that can move axially, described outer tube outer wall is positioned at the annular lower shield being arranged with below described packing element and can moving axially, lean bottom described packing element top and described annular upper shield, lean with described annular lower shield top bottom described packing element.
In a better embodiment of the present utility model, the first cone tank diametrically going up convergent is provided with bottom described annular upper shield, described packing element top is provided with second conical surface mated with described first cone tank, and described second conical surface and described first cone tank lean; Described annular lower shield top is provided with the second cone tank diametrically descending convergent, and be provided with the having three pyramidal faces mated with described second cone tank bottom described packing element, described having three pyramidal faces and described second cone tank lean.
In a better embodiment of the present utility model, described anchor mechanism comprises the upper cone being socketed on and described outer tube outer wall can move axially, and described upper cone is connected by the second shear pin with described outer tube; Described upper cone outer wall top is first face of cylinder, is provided with the 4th conical surface diametrically descending convergent below described first face of cylinder, and described upper cone top end face and described sealing mechanism bottom end face lean; Described outer tube outer wall is positioned at below described upper cone and is arranged with slips, multiple fasteners of the radial expansion of energy are provided with above described slips, described fastener upper inside wall is provided with the 5th conical surface mated with described 4th conical surface, and described 5th conical surface is sheathed on outside described 4th conical surface; Described outer tube outer wall is positioned at below described slips and is arranged with slip spider, described slip spider top is provided with the 3rd flange, described 3rd flange upper surface and described slips bottom end face lean, described outer pipe bottom outer wall is provided with the 4th flange, and the upper surface of described slip spider bottom end face and described 4th flange leans; Described slip spider outer wall is positioned at below described 3rd flange and is socketed with overcoat, the lower surface of described overcoat top end face and described 3rd flange leans, and described outer casing outer wall is connected by the second fixing pin with described 4th flange outer wall; Described outer casing outer wall bottom is connected with described lower contact inner wall sealing.
In a better embodiment of the present utility model, inside described overcoat, the position be positioned at below described outer tube is provided with the first step portion of internally protruding, the described outer casing outer wall position be positioned at below described first step portion is provided with the second step portion concaved, described lower contact top end face and described second step portion lean, described outer casing outer wall below described second step portion is provided with the first connecting thread, described lower contact upper inside wall is provided with the second connecting thread, described overcoat and described lower contact are by described first connecting thread, described second connecting thread is tightly connected, the position be positioned at inside described lower contact below described second connecting thread is provided with to the 3rd projecting inward stage portion, and described jacket bottom end face and described 3rd stage portion lean, the 6th conical surface diametrically going up convergent is provided with bottom described outer casing inner wall, described lower contact inwall is positioned at the 7th conical surface being also provided with below described 3rd stage portion and diametrically descending convergent, and described 6th conical surface, described 7th conical surface and described top connection inwall form the first groove.
In a better embodiment of the present utility model, described releasing gadget comprises the pawl spring that is socketed on described central tube outer wall bottom, described pawl spring top is cylindrical sleeves, being connected with below described cylindrical sleeves can the reed of radial expansion, described reed lower outside is provided with diametrically lower the 8th cumulative conical surface, described reed bottom outside is provided with and diametrically goes up the 9th cumulative conical surface, described 8th conical surface and described 9th conical surface and described lower contact inwall lean, and described reed inner wall lower is provided with diametrically lower the tenth cumulative conical surface; Described releasing gadget also comprises the sliding sleeve of giving up being sheathed on described central tube inner wall lower, described in sliding sleeve outer wall top of giving up be provided with the 5th flange, described 5th flange outer wall and described central tube inwall are connected; Described sliding sleeve outer wall of giving up is positioned at below described 5th flange and is arranged with gland, and described gland outer wall and described central tube inner wall lower are tightly connected, and are provided with the 6th flange bottom described gland, and described 6th flange upper surface and described central tube bottom end face lean; Described sliding sleeve outer wall of giving up is positioned at the 4th stage portion being also provided with below described gland and concaving, described sliding sleeve outer wall of giving up is positioned at below described 4th stage portion and is arranged with lower cone, described lower cone outer wall is the 11 conical surface mated with described tenth conical surface, and described 11 conical surface and described tenth conical surface lean; Be socketed with adjustable ring bottom described sliding sleeve outer wall of giving up, described adjustable ring top end face and described lower cone bottom end face lean.
In a better embodiment of the present utility model, described cylindrical sleeves is connected by connecting thread with described central tube outer wall bottom, described 5th flange is connected by the 3rd shear pin with described central tube sidewall, described gland is connected by connecting thread with described central tube inwall, and described adjustable ring is connected by connecting thread with described sliding sleeve outer wall of giving up.
In a better embodiment of the present utility model, described top connection inner wall lower and described central tube outer wall top are tightly connected by taper thread; Described hydraulic cylinder top side wall is provided with the second link slot of upper opening, be provided with the 3rd fixing pin of locating for circumference at described second link slot place between described hydraulic cylinder and described top connection, be provided with the first sealing ring between bottom described hydraulic cylinder inwall and described top connection outer wall, between described hydraulic cylinder inwall and described central tube outer wall, be provided with the second sealing ring.
From the above mentioned, sand control hanger of the present utility model is simple and compact for structure, and inner latus rectum is large, can reach 120mm, facilitate subsequent technique operation; Be provided with locking mechanism, sealing mechanism and anchor mechanism, force distribution to set, slips and packing element have set and just can carry out operation of giving up afterwards, structural stability is strong, and site operation is safe and reliable, effectively ensure that sand control effect, extend life of equipment, reduce field produces cost.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the structural representation of the utility model sand control hanger.
Fig. 2: be I place's schematic enlarged-scale view in Fig. 1.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model is described.
As shown in Figure 1, the sand control hanger 100 that the utility model provides, comprise a top connection 1, top connection 1 upper inside wall and oil pipe or drilling rod (prior art, not shown) connected (prior art) by gas thread 11, top connection 1 outer wall upper sleeve gasket is provided with a hydraulic cylinder that can move axially 2, top connection 1 inner wall lower is connected with a central tube 3, hydraulic cylinder 2 inner wall lower sealing shroud is located on central tube 3 outer wall, top connection 1 bottom end face, the first seal cavity 31 is formed between hydraulic cylinder 2 inwall and central tube 3 outer wall, position central tube 3 sidewall being positioned at the first seal cavity 31 is provided with the first through hole 32, first through hole 32 realizes being communicated with of central tube 3 inner chamber and the first seal cavity 31, in the present embodiment, top connection 1 inner wall lower and central tube 3 outer wall top are tightly connected by taper thread, hydraulic cylinder 2 top side wall is provided with the second link slot 21 of upper opening, the 3rd fixing pin 106 is provided with at the second link slot 21 place between hydraulic cylinder 2 and top connection 1,3rd fixing pin 106 is located for the circumference of hydraulic cylinder 2, avoid hydraulic cylinder 2 to rotate relative to top connection 1, the quantity of the second link slot 21 and the 3rd fixing pin 106 is determined according to actual needs, the first sealing ring 22 is provided with between bottom hydraulic cylinder 2 inwall and top connection 1 outer wall, in the present embodiment, top connection 1 outer wall is provided with the first cannelure 12, first sealing ring 22 is placed in the first cannelure 12, the second sealing ring 23 is provided with between hydraulic cylinder 2 inwall and central tube 3 outer wall, in the present embodiment, hydraulic cylinder 2 inwall is provided with the second cannelure 24, second sealing ring 23 and is placed in the second cannelure 24.
Hydraulic cylinder 2 outer wall bottom is arranged with an outer tube 4, and outer tube 4 outer wall top is arranged with one can along the unidirectional locking mechanism in axial sliding 5 of outer tube, and locking mechanism 5 top seal is sheathed on hydraulic cylinder 2 outer wall; Outer tube 4 outer wall is positioned at below locking mechanism 5 and is arranged with a sealing mechanism 6 that can move axially along outer tube 4, lean bottom sealing mechanism 6 top and locking mechanism 5, outer tube 4 outer wall is positioned at below sealing mechanism 6 and is socketed with an anchor mechanism 7 that can axially engage with radial direction, anchor mechanism 7 bottom is fixedly connected with outer tube 4 outer wall bottom, and anchor mechanism 7 bottom is connected with lower contact 8; Central tube 3 bottom is connected with the releasing gadget 9 of energy axial restraint lower contact 8, releasing gadget 9 bottom and lower contact 8 inwall lean, go into the well in process at sand control hanger 100, central tube 3 realizes mounting with lower contact 8, anchor mechanism 7, sealing mechanism 6, locking mechanism 5, outer tube 4 and hydraulic cylinder 2 axial restraint by releasing gadget 9.
Further, as Fig. 1, shown in Fig. 2, locking mechanism 5 comprises the first slip ring 51 that a top seal is sheathed on hydraulic cylinder 2 outer wall, in the present embodiment, hydraulic cylinder 2 bottom is positioned at the first seal cavity 31 place and is provided with the first conical section 25 that diametrically descends convergent, first slip ring 51 inwall top is provided with the first taper surface 511 mated with the first conical section 25, first slip ring 51 top is provided with the first link slot 512 of upper opening, first slip ring 51 and hydraulic cylinder 2 are provided with the first fixing pin 101 at the first link slot 512 place, first fixing pin 101 is for the first slip ring 51 circumference location, the first slip ring 51 opposing hydraulic cylinder 2 is avoided to rotate, first slip ring 51 inner wall lower is sheathed on outer tube 4 outer wall, outer tube 4 outer wall is also socketed with a split ring 52, split ring 52 sidewall is provided with the gap (prior art of up/down perforation, not shown), split ring 52 top and the first slip ring 51 bottom end face lean, unidirectional backing stop structure 521 is provided with between split ring 52 and outer tube 4 outer wall, in the present embodiment, unidirectional backing stop structure 521 comprises the first annular toothed segment 5211 that outer tube 4 outer wall top is arranged, also comprise the second circular saw section 5212 coordinated with the first annular toothed segment 5211 that split ring 52 inwall is arranged, outer tube 4 outer wall is positioned to be socketed with bottom the second slip ring 53, second slip ring 53 top and split ring 52 below split ring 52 and leans, first slip ring 51 outer wall is provided with one first flange 513, one second flange 531 is provided with bottom second slip ring 53 outer wall, first slip ring 51 outer wall is positioned at below the first flange 513 and is socketed with a locking ring 54, locking ring 54 inner wall lower is socketed in the second slip ring 53 outer wall top, locking ring 54 internal diameter is greater than the external diameter of split ring 52, as shown in Figure 2, in the present embodiment, first slip ring 51 outer wall bottom, second slip ring 53 outer wall top is provided with the first rectangular thread 532, locking ring 54 inwall is provided with the second rectangular thread 541, locking ring 54 and the first slip ring 51, second slip ring 53 is by the first rectangular thread 532, second rectangular thread 541 connects, locking ring 54 top and the first flange 513 lower surface lean, and lean bottom locking ring 54 with the second flange 531 upper surface.Second flange 531 sidewall is connected by the first shear pin 102 with between outer tube 4.It is descending that oil pipe or drilling rod (prior art) promote locking mechanism 5 by top connection 1 and hydraulic cylinder 2, locking mechanism 5 by unidirectional backing stop structure 521, ensure sand control hanger 100 in suspension, setting the course of work can only be descending, can not rollback.
As shown in Figure 1, sealing mechanism 6 comprises the annular upper shield 61 being sheathed on and outer tube 4 outer wall can move axially, top end face and locking mechanism 5 bottom end face of annular upper shield 61 lean, the first cone tank 611 diametrically going up convergent is provided with bottom annular upper shield 61, outer tube 4 outer wall is positioned at below annular upper shield 61 and is arranged with a packing element that can move axially 62, in the present embodiment, packing element 62 is high temperature packing element, packing element 62 top is provided with second conical surface 621, second conical surface 621 that mates with the first cone tank 611 and the first cone tank 611 leans; Outer tube 4 outer wall is positioned at the annular lower shield 63 being arranged with below packing element 62 and can moving axially, annular lower shield 63 top is provided with the second cone tank 631 diametrically descending convergent, the having three pyramidal faces 622 mated with the second cone tank 631 is provided with bottom packing element 62, having three pyramidal faces 622 and the second cone tank 631 lean, lean bottom packing element 62 top and annular upper shield 61, lean with annular lower shield 63 top bottom packing element 62.It is descending that locking mechanism 5 promotes sealing mechanism 6, in pushing course, packing element 62 be squeezed diameter increase, sealing sand control hanger 100 and the borehole wall between annular space.
As shown in Figure 1, anchor mechanism 7 comprises the upper cone 71 being socketed on and outer tube 4 outer wall can move axially, and upper cone 71 is connected by the second shear pin 103 with outer tube 4; Upper cone 71 outer wall top is be provided with the 4th conical surface 712 diametrically descending convergent below first face of cylinder 711, the face of cylinder 711, first, and upper cone 71 top end face and sealing mechanism 6 bottom end face lean; Outer tube 4 outer wall is positioned at below upper cone 71 and is arranged with slips 72 (prior art), slips 72 top is provided with multiple fasteners 721 of the radial expansion of energy, fastener 721 upper inside wall is provided with the 5th conical surface 7211 mated with the 4th conical surface 712,5th conical surface 7211 is sheathed on outside the 4th conical surface 712, in the descending process of upper cone 71, the 5th conical surface 7211 is extruded by the 4th conical surface 712, make the radial expansion of fastener 721 (opening), the crown of fastener 721 embeds the borehole wall, realizes the grappling of sand control hanger 100.Outer tube 4 outer wall is positioned at below slips 72 and is arranged with slip spider 73, slip spider 73 top is provided with the 3rd flange 731,3rd flange 731 upper surface and slips 72 bottom end face lean, outer tube 4 bottom outer wall is provided with the 4th flange 41, and the upper surface of slip spider 73 bottom end face and the 4th flange 41 leans; Slip spider 73 outer wall below 3rd flange 731 is socketed with overcoat 74, and the lower surface of overcoat 74 top end face and the 3rd flange 731 leans, and overcoat 74 outer wall is connected by the second fixing pin 104 with the 4th flange 41 outer wall; Overcoat 74 outer wall bottom is connected with lower contact 8 inner wall sealing.In the present embodiment, the position be positioned at inside overcoat 74 below outer tube 4 is provided with the first step portion 741 of internally protruding, the overcoat 74 outer wall position be positioned at below first step portion 741 is provided with the second step portion 742 concaved, lower contact 8 top end face and second step portion 742 lean, overcoat 74 outer wall below second step portion 742 is provided with the first connecting thread 743, lower contact 8 upper inside wall is provided with the second connecting thread 81, and overcoat 74 and lower contact 8 are tightly connected by the first connecting thread 743, second connecting thread 81; The position be positioned at inside lower contact 8 below second connecting thread 81 is provided with to the 3rd projecting inward stage portion 82, and overcoat 74 bottom end face and the 3rd stage portion 82 lean; Be provided with the 6th conical surface 744 diametrically going up convergent bottom overcoat 74 inwall, lower contact 8 inwall is positioned at also to be provided with below the 3rd stage portion 82 and diametrically descends the 7th conical surface the 83, six conical surface 744 of convergent, the 7th conical surface 83 and top connection 8 inwall to form the first groove 84.
As shown in Figure 1, releasing gadget 9 comprises one and is socketed on pawl spring 91 (prior art) below central tube 3 outer wall, pawl spring 91 top is cylindrical sleeves 911, in the present embodiment, cylindrical sleeves 911 is connected by connecting thread with below central tube 3 outer wall, being connected with below cylindrical sleeves 911 can the reed 912 of radial expansion (opening), reed 912 lower outside is provided with diametrically lower the 8th cumulative conical surface 9121, reed 912 bottom outside is provided with the 9th conical surface 9122 diametrically descending convergent, 8th conical surface 9121 and the 9th conical surface 9122 lean with the first groove 84 side of lower contact 8 inwall, realize lower contact 8, anchor mechanism 7, sealing mechanism 6, locking mechanism 5, the axially mounting of outer tube 4 and hydraulic cylinder 2.Reed 912 inner wall lower is provided with diametrically lower the tenth cumulative conical surface 9123.Releasing gadget 9 also comprises the sliding sleeve 92 of giving up being sheathed on central tube 3 inner wall lower, sliding sleeve 92 outer wall top of giving up is provided with the 5th flange 921,5th flange 921 outer wall and central tube 3 inwall are connected, in the present embodiment, the 5th flange 921 is connected by the 3rd shear pin 105 with central tube 3 sidewall; Sliding sleeve 92 outer wall of giving up is positioned at below the 5th flange 921 and is arranged with gland 93, and gland 93 outer wall and central tube 3 lower inside are tightly connected, and in the present embodiment, gland 93 is connected by connecting thread with central tube 3 inwall; The 6th flange the 931, six flange 931 upper surface is provided with and central tube 3 bottom end face leans bottom gland 93; Sliding sleeve 92 outer wall of giving up is positioned at the 4th stage portion 922 being also provided with below gland 93 and concaving, sliding sleeve 92 outer wall of giving up is positioned at below the 4th stage portion 922 and is arranged with lower cone 94, lower cone 94 outer wall is the 11 conical surface 941 mated with the tenth conical surface 9123,11 conical surface 941 and the tenth conical surface 9123 lean, by the 11 conical surface 941 against the tenth conical surface 9123, guarantee the first groove 84 side of the 8th conical surface 9121 and the 9th conical surface 9122 and lower contact 8 inwall against; Give up bottom sliding sleeve 92 outer wall and be socketed with adjustable ring 95, in the present embodiment, adjustable ring 95 is connected by connecting thread with sliding sleeve 92 outer wall of giving up, and adjustable ring 95 top end face and lower cone 94 bottom end face lean.
The sand control hanger that the utility model provides in use, first top connection 1 is connected (prior art with oil pipe or drilling rod, not shown), lower contact 8 and downhole device (such as sand control screen, prior art, not shown) connect, then, in lower going-into-well, after arriving precalculated position, in central tube 3, steel ball 107 (prior art) is dropped into, steel ball 107 falls to sliding sleeve 92 top of giving up, and realizes central tube 3 sealed bottom.Oil pipe or drilling rod connect cementing truck and suppress at well head place, under the first through hole 32 connection effect, first seal cavity 31 pressure raises, hydraulic cylinder 2 promotes downwards, and when reaching certain pressure, the first shear pin 102 is cut off, hydraulic cylinder 2 promotes locking mechanism 5 and moves down, under unidirectional backing stop structure 521 acts on, locking mechanism 5 can only be descending, can not rollback.Under the effect of descending thrust, the radial expansion in the descending extrusion process of locking mechanism 5 of packing element 62 in sealing mechanism 6, upper cone 71 in anchor mechanism 7 and the second shear screw 103 between outer tube 4 are cut off, upper cone 71 moves down, the radial expansion of fastener 721 of slips 72, finally realize packing element 62 expansion sealing annular space, the crown of fastener 721 embeds the borehole wall, and the grappling completing sand control hanger 100 sets.After setting, continue to central tube internal pressurization, when reaching certain pressure, 3rd shear pin 105 is cut off, sliding sleeve 92 of giving up is descending, it is descending that 4th stage portion 922 of giving up on sliding sleeve 92 promotes lower cone 94, the 11 conical surface 941 on lower cone 94 departs from the tenth conical surface 9123 of reed 912 inwall, reed 912 inwardly resilience, 8th conical surface 9121 and the 9th conical surface 9122 depart from the inwall of lower contact 8, when the 5th flange 921 lower surface at sliding sleeve 92 top of giving up and gland 93 upper surface against time, sliding sleeve 92 of giving up stops descending, now stop pressurization, on put on joint 1, releasing gadget 9, central tube 3, hydraulic cylinder 2 and top connection 1 are suggested, outer tube 4 and locking mechanism 5, sealing mechanism 6, anchor mechanism 7, lower contact 8 is stayed in well and is realized sand-proof pipe suspension.
From the above mentioned, the sand control hanger that the utility model provides is simple and compact for structure, and inner latus rectum is large, can reach 120mm, facilitate subsequent technique operation; Be provided with locking mechanism, sealing mechanism and anchor mechanism, force distribution to set, slips and packing element have set and just can carry out operation of giving up afterwards, structural stability is strong, and site operation is safe and reliable, effectively ensure that sand control effect, extend life of equipment, reduce field produces cost.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (10)
1. a sand control hanger, it is characterized in that: described sand control hanger comprises a top connection, described top connection outer wall upper sleeve gasket is provided with a hydraulic cylinder that can move axially, described top connection inner wall lower is connected with a central tube, described hydraulic cylinder inner wall lower sealing shroud is located on described central tube outer wall, described top connection bottom end face, form the first seal cavity between described hydraulic cylinder inwall and described central tube outer wall, the position described central tube sidewall being positioned at described first seal cavity is provided with the first through hole; Described hydraulic cylinder outer wall bottom is arranged with an outer tube, and being arranged with one above described outer tube outer wall can along the unidirectional locking mechanism in axial sliding of described outer tube, and described locking mechanism top seal is sheathed on described hydraulic cylinder outer wall; Described outer tube outer wall is positioned at below described locking mechanism and is arranged with a sealing mechanism that can move axially along described outer tube, lean bottom described sealing mechanism top and described locking mechanism, described outer tube outer wall is positioned at below described sealing mechanism and is socketed with an anchor mechanism that can axially engage with radial direction, described anchor mechanism bottom is fixedly connected with described outer tube outer wall bottom, is connected with lower contact bottom described anchor mechanism; Described central tube bottom is connected with the releasing gadget of lower contact described in energy axial restraint, and described releasing gadget bottom and described lower contact inwall lean.
2. sand control hanger as claimed in claim 1, it is characterized in that: described locking mechanism comprises the first slip ring that a top seal is sheathed on described hydraulic cylinder outer wall, described first slip ring inner wall lower is sheathed on described outer tube outer wall, described outer tube outer wall is also socketed with a split ring, described split ring top and described first slip ring bottom end face lean, and are provided with unidirectional backing stop structure between described split ring and described outer tube outer wall, described outer tube outer wall is positioned at below described split ring and is socketed with the second slip ring, lean bottom described second slip ring top and described split ring, described first slip ring outer wall is provided with one first flange, one second flange is provided with bottom described second slip ring outer wall, described first slip ring outer wall is positioned at below described first flange and is socketed with a locking ring, described locking ring inner wall lower is socketed in described second slip ring outer wall top, described locking ring internal diameter is greater than the external diameter of described split ring, described locking ring top and described first flange lower surface lean, lean with described second flange upper surface bottom described locking ring, described second flange sidewall is connected by the first shear pin with between described outer tube.
3. sand control hanger as claimed in claim 2, it is characterized in that: described cylinder lower is positioned at described first seal cavity place and is provided with the first conical section that diametrically descends convergent, described first slip ring inwall top is provided with the first taper surface mated with described first conical section, described first slip ring top is provided with the first link slot of upper opening, and described first slip ring and described hydraulic cylinder are provided with the first fixing pin for circumference location at described first link slot place; Described unidirectional backing stop structure comprises the second circular saw section coordinated with described first annular toothed segment of the first annular toothed segment and the described split ring inwall setting arranged above described outer tube outer wall; Described first slip ring outer wall bottom, described second slip ring outer wall top are provided with the first rectangular thread, described locking ring inwall is provided with the second rectangular thread, and described locking ring is connected by described first rectangular thread, described second rectangular thread with described first slip ring, described second slip ring.
4. sand control hanger as claimed in claim 1, it is characterized in that: described sealing mechanism comprises the annular upper shield being sheathed on and described outer tube outer wall can move axially, top end face and the described locking mechanism bottom end face of described annular upper shield lean, described outer tube outer wall is positioned at described annular upper shield bottom and is arranged with a packing element that can move axially, described outer tube outer wall is positioned at the annular lower shield being arranged with below described packing element and can moving axially, lean bottom described packing element top and described annular upper shield, lean with described annular lower shield top bottom described packing element.
5. sand control hanger as claimed in claim 4, it is characterized in that: bottom described annular upper shield, be provided with the first cone tank diametrically going up convergent, described packing element top is provided with second conical surface mated with described first cone tank, and described second conical surface and described first cone tank lean; Described annular lower shield top is provided with the second cone tank diametrically descending convergent, and be provided with the having three pyramidal faces mated with described second cone tank bottom described packing element, described having three pyramidal faces and described second cone tank lean.
6. sand control hanger as claimed in claim 1, it is characterized in that: described anchor mechanism comprises the upper cone being socketed on and described outer tube outer wall can move axially, described upper cone is connected by the second shear pin with described outer tube; Described upper cone outer wall top is first face of cylinder, is provided with the 4th conical surface diametrically descending convergent below described first face of cylinder, and described upper cone top end face and described sealing mechanism bottom end face lean; Described outer tube outer wall is positioned at below described upper cone and is arranged with slips, multiple fasteners of the radial expansion of energy are provided with above described slips, described fastener upper inside wall is provided with the 5th conical surface mated with described 4th conical surface, and described 5th conical surface is sheathed on outside described 4th conical surface; Described outer tube outer wall is positioned at below described slips and is arranged with slip spider, described slip spider top is provided with the 3rd flange, described 3rd flange upper surface and described slips bottom end face lean, described outer pipe bottom outer wall is provided with the 4th flange, and the upper surface of described slip spider bottom end face and described 4th flange leans; Described slip spider outer wall is positioned at below described 3rd flange and is socketed with overcoat, the lower surface of described overcoat top end face and described 3rd flange leans, and described outer casing outer wall is connected by the second fixing pin with described 4th flange outer wall; Described outer casing outer wall bottom is connected with described lower contact inner wall sealing.
7. sand control hanger as claimed in claim 6, it is characterized in that: inside described overcoat, the position be positioned at below described outer tube is provided with the first step portion of internally protruding, the described outer casing outer wall position be positioned at below described first step portion is provided with the second step portion concaved, described lower contact top end face and described second step portion lean, described outer casing outer wall below described second step portion is provided with the first connecting thread, described lower contact upper inside wall is provided with the second connecting thread, described overcoat and described lower contact are by described first connecting thread, described second connecting thread is tightly connected, the position be positioned at inside described lower contact below described second connecting thread is provided with to the 3rd projecting inward stage portion, and described jacket bottom end face and described 3rd stage portion lean, the 6th conical surface diametrically going up convergent is provided with bottom described outer casing inner wall, described lower contact inwall is positioned at the 7th conical surface being also provided with below described 3rd stage portion and diametrically descending convergent, and described 6th conical surface, described 7th conical surface and described top connection inwall form the first groove.
8. sand control hanger as claimed in claim 1, it is characterized in that: described releasing gadget comprises the pawl spring that is socketed on described central tube outer wall bottom, described pawl spring top is cylindrical sleeves, being connected with below described cylindrical sleeves can the reed of radial expansion, described reed lower outside is provided with diametrically lower the 8th cumulative conical surface, described reed bottom outside is provided with and diametrically goes up the 9th cumulative conical surface, described 8th conical surface and described 9th conical surface and described lower contact inwall lean, and described reed inner wall lower is provided with diametrically lower the tenth cumulative conical surface; Described releasing gadget also comprises the sliding sleeve of giving up being sheathed on described central tube inner wall lower, described in sliding sleeve outer wall top of giving up be provided with the 5th flange, described 5th flange outer wall and described central tube inwall are connected; Described sliding sleeve outer wall of giving up is positioned at below described 5th flange and is arranged with gland, and described gland outer wall and described central tube inner wall lower are tightly connected, and are provided with the 6th flange bottom described gland, and described 6th flange upper surface and described central tube bottom end face lean; Described sliding sleeve outer wall of giving up is positioned at the 4th stage portion being also provided with below described gland and concaving, described sliding sleeve outer wall of giving up is positioned at below described 4th stage portion and is arranged with lower cone, described lower cone outer wall is the 11 conical surface mated with described tenth conical surface, and described 11 conical surface and described tenth conical surface lean; Be socketed with adjustable ring bottom described sliding sleeve outer wall of giving up, described adjustable ring top end face and described lower cone bottom end face lean.
9. sand control hanger as claimed in claim 8, it is characterized in that: described cylindrical sleeves is connected by connecting thread with described central tube outer wall bottom, described 5th flange is connected by the 3rd shear pin with described central tube sidewall, described gland is connected by connecting thread with described central tube inwall, and described adjustable ring is connected by connecting thread with described sliding sleeve outer wall of giving up.
10. sand control hanger as claimed in claim 1, is characterized in that: described top connection inner wall lower and described central tube outer wall top are tightly connected by taper thread; Described hydraulic cylinder top side wall is provided with the second link slot of upper opening, be provided with the 3rd fixing pin of locating for circumference at described second link slot place between described hydraulic cylinder and described top connection, be provided with the first sealing ring between bottom described hydraulic cylinder inwall and described top connection outer wall, between described hydraulic cylinder inwall and described central tube outer wall, be provided with the second sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334657.1U CN204703811U (en) | 2015-05-22 | 2015-05-22 | Sand control hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334657.1U CN204703811U (en) | 2015-05-22 | 2015-05-22 | Sand control hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703811U true CN204703811U (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520334657.1U Expired - Fee Related CN204703811U (en) | 2015-05-22 | 2015-05-22 | Sand control hanger |
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| Country | Link |
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| CN (1) | CN204703811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023196511A1 (en) * | 2022-04-08 | 2023-10-12 | Baker Hughes Oilfield Operations Llc | Method for assembling a liner system |
| US11898423B2 (en) | 2022-04-08 | 2024-02-13 | Baker Hughes Oilfield Operations | Liner system and method |
-
2015
- 2015-05-22 CN CN201520334657.1U patent/CN204703811U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023196511A1 (en) * | 2022-04-08 | 2023-10-12 | Baker Hughes Oilfield Operations Llc | Method for assembling a liner system |
| US11898423B2 (en) | 2022-04-08 | 2024-02-13 | Baker Hughes Oilfield Operations | Liner system and method |
| US11988076B2 (en) | 2022-04-08 | 2024-05-21 | Baker Hughes Oilfield Operations Llc | Method for assembling a liner system |
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Granted publication date: 20151014 |