CN203441409U - Expansion type tail pipe hanging device of thermal production well - Google Patents
Expansion type tail pipe hanging device of thermal production well Download PDFInfo
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- CN203441409U CN203441409U CN201320579782.XU CN201320579782U CN203441409U CN 203441409 U CN203441409 U CN 203441409U CN 201320579782 U CN201320579782 U CN 201320579782U CN 203441409 U CN203441409 U CN 203441409U
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Abstract
The utility model provides an expansion type tail pipe hanging device of a thermal production well, which relates to the technical field of expansion type tail pipe hanging devices. The expansion type tail pipe hanging device comprises a hydraulic device, a drill pipe crossover joint, a release joint, an inverse buckling wheel, an expanded hanging cylinder, a release double-male joint and a two-stage pressure keeping device, wherein the outer wall of the upper end of the hydraulic device is fixedly mounted together with the inner wall of the lower end of the drill pipe crossover joint, an expansion cone is arranged on the outer wall of the lower part of the hydraulic device in a sleeved manner, and an annular limiting boss is fixed on the outer wall of the middle part of the expansion cone. The expansion type tail pipe hanging device has the advantages that the structure is reasonable and compact, and the use is convenient; the expansion type tail pipe hanging device has the characteristics of high hanging reliability and reliability in release without requiring an underground activity mark; the structure of the hanging device is simplified, the underground activity is convenient to implement and judge in a construction process, the field well completion requirements are met, the accurate construction is realized, the construction success rate is high, the well cementation quality is improved, oil and gas reservoirs can be well protected, and the damage to stratum is greatly reduced in the well cementation process.
Description
Technical field
the utility model relates to buckling type tail suspension arrangement technical field, is a kind of expansion type thermal recovery well tail pipe hanging device.
Background technology
drilling liner cementing is that risk is high, technical sophistication, difficulty of construction is large, quality requirement is high extraordinary well cementing operation.But because drilling liner cementing can be saved the materials such as sleeve pipe and cement in a large number, this operation has for many years brought huge economic benefit, and effectively improved drilling condition, especially, at the well of exploration well and brill chance bad ground, drilling liner cementing has become a kind of technology of indispensability.Extension hanger, as the special tool of drilling liner cementing, occupies important position in drilling liner cementing construction.The quality of its Performance and quality directly has influence on the quality of drilling liner cementing construction, even the success or failure of impact construction.Development along with domestic and international cementing technology; especially aspect tail tube hanging, technology is updated and is innovated; and in view of both at home and abroad to the Technology Need of protection oil-gas Layer, improve recovery ratio needs, be convenient to the needs such as site operation; although existing extension hanger can meet the construction of natural completion substantially, still can improve and improve technically.In completion work progress, there is no at present that obvious down-hole is movable to be indicated, is that the theory by experience and tail tube hanging is basis for estimation completely, if hole condition comparatively complicated situation is next be difficult to judge work progress in the actual conditions of down-hole.Due to down-hole situation more complicated often, the cementing operation of part tail tube hanging is to rely on casing and cementing's teacher micro-judgment to operate completely.In addition, there are many extension hangers due to design imperfection, operating difficulties, bring inconvenience to well cementation site operation, cause in construction, having potential risks, be difficult to guarantee to reach the requirement of design, bring more unfavorable factor to the oil extraction operation in later stage, even have influence on final recovery ratio.
Summary of the invention
the utility model provides a kind of expansion type thermal recovery well tail pipe hanging device, has overcome the deficiency of above-mentioned prior art, and it can effectively solve, and because existing tail tube hanging has, obvious down-hole is movable not to be indicated so that brought inconvenient problem to well cementation site operation.
the technical solution of the utility model realizes by following measures: a kind of expansion type thermal recovery well tail pipe hanging device, comprises hydraulic means, drill stem conversion connector, back-off sub, back-off wheel, back-off sub, expanding suspension cylinder, give up double male joint and two-stage build the pressure device, the upper end outer wall of hydraulic means and the lower end inwall of drill stem conversion connector are fixedly installed togather, on the outer wall of the bottom of hydraulic means, be set with expansion cone, on the middle part outer wall of expansion cone, be fixed with annular positive stop lug boss, on the expansion cone outer wall of positive stop lug boss below, be set with expansion tapered sleeve, the big up and small down conical surface of outer wall of expansion tapered sleeve, the lower end outer wall of hydraulic means and the upper end inwall of back-off sub are fixedly installed togather, between the outer wall of the inwall of hung drum joint and back-off wheel, by left hand thread, be fixedly installed togather, on the back-off sub outer wall of corresponding back-off wheel, along circumference, be radially evenly distributed with the axial mounting groove of at least two, axially in mounting groove, be installed with feather key, on the back-off wheel inwall of corresponding feather key, there is axial locked groove, the outer end of feather key is positioned at axial locked groove, on the back-off sub outer wall of feather key top, be installed with lock nut, the lower end inwall of expanding suspension cylinder and the upper end outer wall of hung drum joint are fixedly installed togather, the upper end of expanding suspension cylinder is sleeved on the outer wall of expansion tapered sleeve, in the external wall of upper portion of expanding suspension cylinder, there is suspension tooth, the bottom of hydraulic means, expansion cone, expansion tapered sleeve, expanding suspension cylinder, hung drum joint, between back-off wheel and back-off sub, form thrust chamber, on the bottom outer wall of hung drum joint, have annular on the mounting groove of giving up, give up have on the upper end outer wall of double male joint annular under the mounting groove of giving up, the top and bottom of releasing pup joint be fixedly mounted on respectively give up in mounting groove and under give up in mounting groove, on the outer wall of releasing pup joint, along circumference, be radially evenly fixed with the righting boss of at least three, the build the pressure external wall of upper portion of device of the lower end inwall of back-off sub and two-stage level is fixedly installed togather, on hydraulic means, there is the through hole of suppressing radially.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned hydraulic means comprises axle, fluid cylinder joint, fluid cylinder sliding axle and liquid cylinder in fluid cylinder, in fluid cylinder, the upper end outer wall of axle and the lower end inwall of drill stem conversion connector are fixedly installed togather, on the middle part inwall of fluid cylinder joint, be fixed with annular docking boss, in the fluid cylinder inner nosepiece wall of docking boss top and fluid cylinder, the lower end outer wall of axle is fixedly installed togather, the fluid cylinder inner nosepiece wall of docking boss below and the upper end inwall of fluid cylinder sliding axle are fixedly installed togather, the upper end inwall of the lower end of fluid cylinder sliding axle and back-off sub is fixedly installed togather, in the external wall of upper portion of fluid cylinder sliding axle, be set with expansion cone, on the expansion cone outer wall of positive stop lug boss top, be installed with liquid cylinder joint, in fluid cylinder, on the outer wall of axle, be installed with liquid cylinder righting hoop, in fluid cylinder between liquid cylinder righting hoop and tool joint, on axle outer wall, be set with abutment sleeve, on the outer wall of liquid cylinder righting hoop, along circumference, be radially evenly distributed with the righting hoop boss of at least three, the upper end of liquid cylinder is sleeved on the liquid cylinder righting hoop outer wall of righting hoop boss below, the lower end inwall of liquid cylinder and the outer wall of liquid cylinder joint are fixedly installed togather, on fluid cylinder joint and docking boss, there is the through hole of suppressing radially, on the fluid cylinder joint outer wall of suppressing above through hole, be fixed with minute chamber boss of annular, fluid cylinder joint, divide chamber boss, liquid cylinder, mineralization pressure counter balance pocket between axle in liquid cylinder righting hoop and fluid cylinder, on liquid cylinder righting hoop, along circumference, be radially distributed with axial pressure compensation opening, fluid cylinder joint, divide chamber boss, liquid cylinder, liquid cylinder joint, mineralization pressure chamber between expansion cone and fluid cylinder sliding axle, the bottom of fluid cylinder sliding axle, expansion cone, expansion tapered sleeve, expanding suspension cylinder, hung drum joint, between back-off wheel and back-off sub, form thrust chamber.
above-mentioned two-stage build the pressure device comprise catch spherojoint, ball seat and catch ball stopper plate expands, the lower end outside of catching spherojoint be fixed with that external diameter is less than respectively hung drum joint internal diameter and the double male joint internal diameter of giving up catch ball cylinder, on the lower end inwall of back-off sub, there is installation annular groove, the top of catching spherojoint is fixedly mounted on installs in annular groove, catch on the inwall of spherojoint and be installed with by expanded spheres seat pin nail the expansion ball seat that there is axial passage inside, catch the upper surface of spherojoint and the upper surface of expansion ball seat forms up big and down small ball seat bellmouth, catch on the inwall of ball cylinder lower end and be installed with and catch ball stopper plate, there is the axial opening that can block expansion ball seat and pitching at the middle part of catching ball stopper plate, catching of opening outside has the circulation port that can block expansion ball seat and pitching on ball stopper plate.
the above-mentioned radial direction through hole catching inside and outside the perforation that is distributed with four row on ball cylinder along even circumferential, often shows four radial direction through hole; Or/and, on the outer wall of releasing pup joint, along circumference, be radially evenly fixed with the righting boss of at least three.
in above-mentioned drill stem conversion connector and fluid cylinder, between axle, be installed with sealing ring, between minute chamber boss and liquid cylinder, be installed with sealing ring, in fluid cylinder joint and fluid cylinder, between axle, be installed with sealing ring, between fluid cylinder joint and fluid cylinder sliding axle, be installed with sealing ring, between liquid cylinder joint and expansion cone, be installed with sealing ring, between expansion cone and expansion tapered sleeve, be installed with sealing ring, between expansion cone and fluid cylinder sliding axle, be installed with sealing ring, between back-off sub and fluid cylinder sliding axle, be installed with sealing ring, catch between spherojoint and back-off sub and be installed with sealing ring, catch between spherojoint and expansion ball seat and be installed with sealing ring, between hung drum joint and releasing pup joint, be installed with sealing ring, releasing pup joint and give up and be installed with sealing ring between double male joint.
the lower end inwall of above-mentioned expanding suspension cylinder and the upper end outer wall of hung drum joint are fixedly installed togather by screw thread, the top and bottom of releasing pup joint by screw thread, be fixedly mounted on respectively in the mounting groove of giving up and under give up in mounting groove, in fluid cylinder, the upper end outer wall of axle and the lower end inwall of drill stem conversion connector are fixedly installed togather by screw thread, in the fluid cylinder inner nosepiece wall of docking boss top and fluid cylinder, the lower end outer wall of axle is fixedly installed togather by screw thread, the fluid cylinder inner nosepiece wall of docking boss below and the upper end inwall of fluid cylinder sliding axle are fixedly installed togather by screw thread, the upper end inwall of the lower end of fluid cylinder sliding axle and back-off sub is fixedly installed togather by screw thread, on the expansion cone outer wall of positive stop lug boss top, by screw thread, be installed with liquid cylinder joint, the lower end inwall of liquid cylinder and the outer wall of liquid cylinder joint are fixedly installed togather by screw thread, the top of catching spherojoint is fixedly mounted on and is installed in annular groove by screw thread, catch on the inwall of ball cylinder lower end and be installed with and catch ball stopper plate by screw thread, there are internal thread or external screw thread in the upper end of drill stem conversion connector.
the upper end of above-mentioned releasing pup joint and on give up and between mounting groove, be installed with backing-up screw, the lower end of releasing pup joint and under give up and between mounting groove, be installed with backing-up screw, in fluid cylinder, between the upper end of axle and the lower end of drill stem conversion connector, be installed with backing-up screw, axially in mounting groove, by backing-up screw, be installed with feather key, in the fluid cylinder joint of docking boss top and fluid cylinder, between the lower end of axle, be installed with backing-up screw, between the fluid cylinder joint of docking boss below and the upper end of fluid cylinder sliding axle, be installed with backing-up screw, between the lower end of fluid cylinder sliding axle and the upper end of back-off sub, be installed with backing-up screw, between the lower end of the upper end of expansion cone and liquid cylinder joint, be installed with backing-up screw, catch spherojoint and install between annular groove and be installed with backing-up screw, catch ball cylinder lower end and catch between ball stopper plate and be installed with backing-up screw, the inner side, upper end of liquid cylinder righting hoop is fixed with annular installation base, on the liquid cylinder righting hoop in installation base outside, along circumference, be radially distributed with axial pressure compensation opening, in fluid cylinder between installation base and drill stem conversion connector, on axle outer wall, be set with abutment sleeve, in installation base and fluid cylinder, between the outer wall of axle, be installed with backing-up screw.
the utility model reasonable and compact in structure; easy to use; in the situation that not needing the movable sign in down-hole; have and hang that reliability is high, the reliable feature of giving up, and simplified the structure of hanger, operation in constructability simultaneously, judgement down-hole are movable; meet on-the-spot completion requirement; reach accurate construction and be constructed into power high, improved cementing quality, can protect well oil and gas reservoir, greatly reduce the injury to stratum in well cementing process.
Accompanying drawing explanation
accompanying drawing 1 is looked half section structural representation for the first half master of the utility model most preferred embodiment.
accompanying drawing 2 is looked half section structural representation for the latter half master of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is drill stem conversion connector, 2 is expansion cone, 3 is positive stop lug boss, 4 is expansion tapered sleeve, 5 is back-off sub, 6 is hung drum joint, 7 is back-off wheel, 8 is axial mounting groove, 9 is feather key, 10 is axial locked groove, 11 is lock nut, 12 is expanding suspension cylinder, 13 for hanging tooth, 14 is thrust chamber, 15 on the mounting groove of giving up, 16 is the double male joint of giving up, 17 mounting grooves of giving up under being, 18 is releasing pup joint, 19 is righting boss, 20 is axle in fluid cylinder, 21 is fluid cylinder joint, 22 is docking boss, 23 is fluid cylinder sliding axle, 24 is liquid cylinder joint, 25 is liquid cylinder righting hoop, 26 is abutment sleeve, 27 is righting hoop boss, 28 is liquid cylinder, 29 for suppressing through hole, 30 is a minute chamber boss, 31 is pressure balance chamber, 32 is pressure compensation opening, 33 is pressure chamber, 34 for catching spherojoint, 35 for catching ball cylinder, 36 install annular groove is, 37 is expanded spheres seat pin nail, 38 is expansion ball seat, 39 is ball seat bellmouth, 40 for catching ball stopper plate, 41 is opening, 42 is circulation port, 43 is radial direction through hole, 44 is sealing ring, 45 is backing-up screw, 46 is installation base.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2, this expansion type thermal recovery well tail pipe hanging device comprises hydraulic means, drill stem conversion connector 1, back-off sub 5, hung drum joint 6, back-off wheel 7, expanding suspension cylinder 12, the double male joint 16 of giving up, releasing pup joint 18 and the two-stage device that builds the pressure, the upper end outer wall of hydraulic means and the lower end inwall of drill stem conversion connector 1 are fixedly installed togather, on the outer wall of the bottom of hydraulic means, be set with expansion cone 2, on the middle part outer wall of expansion cone 2, be fixed with annular positive stop lug boss 3, on expansion cone 2 outer walls of positive stop lug boss 3 belows, be set with expansion tapered sleeve 4, the big up and small down conical surface of outer wall of expansion tapered sleeve 4, the lower end outer wall of hydraulic means and the upper end inwall of back-off sub 5 are fixedly installed togather, between the outer wall of the inwall of hung drum joint 6 and back-off wheel 7, by left hand thread, be fixedly installed togather, on back-off sub 5 outer walls of corresponding back-off wheel 7, along circumference, be radially evenly distributed with the axial mounting groove 8 of at least two, axially in mounting groove 8, be installed with feather key 9, the back-off of corresponding feather key 9 is taken turns axial locked groove 10 on 7 inwalls, the outer end of feather key 9 is positioned at axial locked groove 10, on back-off sub 5 outer walls of feather key 9 tops, be installed with lock nut 11, the lower end inwall of expanding suspension cylinder 12 and the upper end outer wall of hung drum joint 6 are fixedly installed togather, the upper end of expanding suspension cylinder 12 is sleeved on the outer wall of expansion tapered sleeve 4, in the external wall of upper portion of expanding suspension cylinder 12, there is the tooth 13 of suspension, the bottom of hydraulic means, expansion cone 2, expansion tapered sleeve 4, expanding suspension cylinder 12, hung drum joint 6, between back-off wheel 7 and back-off sub 5, form thrust chamber 14, on the bottom outer wall of hung drum joint 6, have annular on the mounting groove 15 of giving up, give up have on the upper end outer wall of double male joint 16 annular under the mounting groove 17 of giving up, the top and bottom of releasing pup joint 18 be fixedly mounted on respectively in the mounting groove 15 of giving up and under give up in mounting groove 17, the build the pressure external wall of upper portion of device of the lower end inwall of back-off sub 5 and two-stage level is fixedly installed togather, on hydraulic means, have radially suppress through hole 29.When the utility model is used, first to the two-stage device that builds the pressure, drop into pitching, then to the utility model inside, suppress, pressure fluid is by suppressing through hole 29 to hydraulic means transmission of pressure, under the effect of hydraulic means, promoting expansion cone 2 moves down, and then drive expansion tapered sleeve 4 to move down, in the descending process of expansion tapered sleeve 4, expanding suspension cylinder 12 expands, hanging under the effect of tooth 13, the utility model is realized and being hung, the effect of annular space packing; When needs are given up, dextrorotation the utility model, back-off wheel 7 is triped with hung drum joint 6, now, above carry the utility model, expanding suspension cylinder 12, hung drum joint 6, releasing pup joint 18 and the double male joint 16 of giving up are stayed shaft bottom, give up successfully, in continuation, carry the utility model, complete recovery, axially the cooperation of mounting groove 8, feather key 9 and axial locked groove 10 can prevent the radial rotating of back-off wheel 7 in the process of triping; On the utility model, carry in process, for prevent back-off wheel 7 on move impact and put forward recovery operation on of the present utility model, spy is provided with lock nut 11, can lock back-off wheel 7, prevents from moving on back-off wheel 7; The utility model does not need obvious down-hole activation flag; have and hang that reliability is high, the reliable feature of giving up; and simplified the structure of hanger; operation in constructability simultaneously, the activity of judgement down-hole; meet on-the-spot completion requirement; reach accurate construction and be constructed into power high, improved cementing quality, can protect well oil and gas reservoir, greatly reduce the injury to stratum in well cementing process.
can according to actual needs, above-mentioned expansion type thermal recovery well tail pipe hanging device be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, hydraulic means comprises axle 20, fluid cylinder joint 21, fluid cylinder sliding axle 23 and liquid cylinder 28 in fluid cylinder, in fluid cylinder, the upper end outer wall of axle 20 and the lower end inwall of drill stem conversion connector 1 are fixedly installed togather, on the middle part inwall of fluid cylinder joint 21, be fixed with annular docking boss 22, in fluid cylinder joint 21 inwalls of docking boss 22 tops and fluid cylinder, the lower end outer wall of axle 20 is fixedly installed togather, fluid cylinder joint 21 inwalls of docking boss 22 belows and the upper end inwall of fluid cylinder sliding axle 23 are fixedly installed togather, the upper end inwall of the lower end of fluid cylinder sliding axle 23 and back-off sub 5 is fixedly installed togather, in the external wall of upper portion of fluid cylinder sliding axle 23, be set with expansion cone 2, on expansion cone 2 outer walls of positive stop lug boss 3 tops, be installed with liquid cylinder joint 24, in fluid cylinder, on the outer wall of axle 20, be installed with liquid cylinder righting hoop 25, in fluid cylinder between liquid cylinder righting hoop 25 and tool joint 1, on axle 20 outer walls, be set with abutment sleeve 26, on the outer wall of liquid cylinder righting hoop 25, along circumference, be radially evenly distributed with the righting hoop boss 27 of at least three, the upper end of liquid cylinder 28 is sleeved on liquid cylinder righting hoop 25 outer walls of righting hoop boss 27 belows, the lower end inwall of liquid cylinder 28 and the outer wall of liquid cylinder joint 24 are fixedly installed togather, on fluid cylinder joint 21 and docking boss 22, have radially suppress through hole 29, on fluid cylinder joint 21 outer walls of suppressing above through hole 29, be fixed with minute chamber boss 30 of annular, fluid cylinder joint 21, divide chamber boss 30, liquid cylinder 28, mineralization pressure counter balance pocket 31 between axle 20 in liquid cylinder righting hoop 25 and fluid cylinder, on liquid cylinder righting hoop 25, along circumference, be radially distributed with axial pressure compensation opening 32, fluid cylinder joint 21, divide chamber boss 30, liquid cylinder 28, liquid cylinder joint 24, mineralization pressure chamber 33 between expansion cone 2 and fluid cylinder sliding axle 23, the bottom of fluid cylinder sliding axle 23, expansion cone 2, expansion tapered sleeve 4, expanding suspension cylinder 12, hung drum joint 6, between back-off wheel 7 and back-off sub 5, form thrust chamber 14.First to two-stage, build the pressure after the pitching of device input, to the utility model inside, suppress, pressure fluid enters pressure chamber 33 and promotes expansion cone 2 and move down by suppressing through hole 29, when the utility model installation is about to carry out operation, in order to guarantee smooth work of the present utility model, avoid pressure balance chamber 31 external and internal pressures unbalance, spy is provided with pressure compensation opening 32, after the utility model installation, first pass through pressure compensation opening 32 to the interior injection pressure liquid of pressure balance chamber 31, again by the bottom of the utility model lower going-into-well, simultaneously, filling with the pressure balance chamber 31 of pressure fluid can avoid when the utility model is worked in shaft bottom, landwaste or other impurity enter pressure balance chamber 31, affect working effect of the present utility model.
as shown in accompanying drawing 1,2, the two-stage device that builds the pressure comprises and catches spherojoint 34, expansion ball seat 38 and catch ball stopper plate 40, the lower end outside of catching spherojoint 34 be fixed with that external diameter is less than respectively hung drum joint 6 internal diameters and double male joint 16 internal diameters of giving up catch ball cylinder 35, on the lower end inwall of back-off sub 5, there is the annular groove 36 of installation, the top of catching spherojoint 34 is fixedly mounted on installs in annular groove 36, catch on the inwall of spherojoint 34 and be installed with by expanded spheres seat pin nail 37 the expansion ball seat 38 that there is axial passage inside, catch the upper surface of spherojoint 34 and the upper surface of expansion ball seat 38 forms up big and down small ball seat bellmouth 39, catch on ball cylinder 35 lower end inwalls and be installed with and catch ball stopper plate 40, there is the axial opening that can block expansion ball seat 38 and pitching 41 at the middle part of catching ball stopper plate 40, catching of opening 41 outsides has the circulation port 42 that can block expansion ball seat 38 and pitching on ball stopper plate 40.Drop into after pitching, pitching seat is in ball seat bellmouth 39, build the pressure, hydraulic means effect, continues to build the pressure, and cuts off expansion ball seat 38 pins, expansion ball seat 38 with catch spherojoint 34 and depart from, catch the effect of accepting that ball stopper plate 40 is realized expansion ball seat 38 and pitching, shaft bottom is fallen in avoid expanding ball seat 38 and pitching, and opening 41 and circulation port 42 are realized the circulation of mud in the utility model and upper and lower fastening means.
as shown in accompanying drawing 1,2, at the radial direction through hole 43 of catching inside and outside the perforation that is distributed with four row on ball cylinder 35 along even circumferential, often show four radial direction through hole 43; Or/and, on the outer wall of releasing pup joint 18, along circumference, be radially evenly fixed with the righting boss 19 of at least three.Radial direction through hole 43 can guarantee mud discharge in time and circulation; 19 pairs of the utility model of righting boss on releasing pup joint 18 outer walls play the effect of righting, make the utility model remain in the course of the work placed in the middle.
as accompanying drawing 1, shown in 2, in drill stem conversion connector 1 and fluid cylinder, between axle 20, be installed with sealing ring 44, between minute chamber boss 30 and liquid cylinder 28, be installed with sealing ring 44, in fluid cylinder joint 21 and fluid cylinder, between axle 20, be installed with sealing ring 44, between fluid cylinder joint 21 and fluid cylinder sliding axle 23, be installed with sealing ring 44, between liquid cylinder joint 24 and expansion cone 2, be installed with sealing ring 44, between expansion cone 2 and expansion tapered sleeve 4, be installed with sealing ring 44, between expansion cone 2 and fluid cylinder sliding axle 23, be installed with sealing ring 44, between back-off sub 5 and fluid cylinder sliding axle 23, be installed with sealing ring 44, catch between spherojoint 34 and back-off sub 5 and be installed with sealing ring 44, catch between spherojoint 34 and expansion ball seat 38 and be installed with sealing ring 44, between hung drum joint 6 and releasing pup joint 18, be installed with sealing ring 44, releasing pup joint 18 and give up and be installed with sealing ring 44 between double male joint 16.Sealing ring 44 can be realized positiver sealing, and sealing ring 44 all adopts metal material without rubber seal, has improved the high temperature resistant enduring quality of the utility model to thermal production well high temperature vapours.
as accompanying drawing 1, shown in 2, the lower end inwall of expanding suspension cylinder 12 and the upper end outer wall of hung drum joint 6 are fixedly installed togather by screw thread, the top and bottom of releasing pup joint 18 by screw thread, be fixedly mounted on respectively in the mounting groove 15 of giving up and under give up in mounting groove 17, in fluid cylinder, the upper end outer wall of axle 20 and the lower end inwall of drill stem conversion connector 1 are fixedly installed togather by screw thread, in fluid cylinder joint 21 inwalls of docking boss 22 tops and fluid cylinder, the lower end outer wall of axle 20 is fixedly installed togather by screw thread, fluid cylinder joint 21 inwalls of docking boss 22 belows and the upper end inwall of fluid cylinder sliding axle 23 are fixedly installed togather by screw thread, the upper end inwall of the lower end of fluid cylinder sliding axle 23 and back-off sub 5 is fixedly installed togather by screw thread, on expansion cone 2 outer walls of positive stop lug boss 3 tops, by screw thread, be installed with liquid cylinder joint 24, the lower end inwall of liquid cylinder 28 and the outer wall of liquid cylinder joint 24 are fixedly installed togather by screw thread, the top of catching spherojoint 34 is fixedly mounted on and is installed in annular groove 36 by screw thread, catch on ball cylinder 35 lower end inwalls and be installed with and catch ball stopper plate 40 by screw thread, there are internal thread or external screw thread in the upper end of drill stem conversion connector 1.Be threaded and facilitate installation and removal, above-mentioned screw thread is right-handed thread.
as accompanying drawing 1, shown in 2, the upper end of releasing pup joint 18 and on give up and between mounting groove 15, be installed with backing-up screw 45, the lower end of releasing pup joint 18 and under give up and between mounting groove 17, be installed with backing-up screw 45, in fluid cylinder, between the upper end of axle 20 and the lower end of drill stem conversion connector 1, be installed with backing-up screw 45, axially in mounting groove 8, by backing-up screw 45, be installed with feather key 9, in the fluid cylinder joint 21 of docking boss 22 tops and fluid cylinder, between the lower end of axle 20, be installed with backing-up screw 45, between the docking fluid cylinder joint 21 of boss 22 belows and the upper end of fluid cylinder sliding axle 23, be installed with backing-up screw 45, between the upper end of the lower end of fluid cylinder sliding axle 23 and back-off sub 5, be installed with backing-up screw 45, between the lower end of the upper end of expansion cone 2 and liquid cylinder joint 24, be installed with backing-up screw 45, catch spherojoint 34 and install between annular groove 36 and be installed with backing-up screw 45, catch ball cylinder 35 lower ends and catch and between ball stopper plate 40, be installed with backing-up screw 45, the inner side, upper end of liquid cylinder righting hoop 25 is fixed with annular installation base 46, on the liquid cylinder righting hoop 25 in installation base 46 outsides, along circumference, be radially distributed with axial pressure compensation opening 32, in fluid cylinder between installation base 46 and drill stem conversion connector 1, on axle 20 outer walls, be set with abutment sleeve 26, in installation base 46 and fluid cylinder, between the outer wall of axle 20, be installed with backing-up screw 45.Backing-up screw 45 can be avoided the utility model reliable connection of each parts in the course of the work.
the utility model reasonable and compact in structure; easy to use; in the situation that not needing the movable sign in down-hole; have and hang that reliability is high, the reliable feature of giving up, and simplified the structure of hanger, operation in constructability simultaneously, judgement down-hole are movable; meet on-the-spot completion requirement; reach accurate construction and be constructed into power high, improved cementing quality, can protect well oil and gas reservoir, greatly reduce the injury to stratum in well cementing process.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (10)
1. an expansion type thermal recovery well tail pipe hanging device, is characterized in that comprising hydraulic means, drill stem conversion connector, back-off sub, back-off wheel, back-off sub, expanding suspension cylinder, give up double male joint and two-stage build the pressure device, the upper end outer wall of hydraulic means and the lower end inwall of drill stem conversion connector are fixedly installed togather, on the outer wall of the bottom of hydraulic means, be set with expansion cone, on the middle part outer wall of expansion cone, be fixed with annular positive stop lug boss, on the expansion cone outer wall of positive stop lug boss below, be set with expansion tapered sleeve, the big up and small down conical surface of outer wall of expansion tapered sleeve, the lower end outer wall of hydraulic means and the upper end inwall of back-off sub are fixedly installed togather, between the outer wall of the inwall of hung drum joint and back-off wheel, by left hand thread, be fixedly installed togather, on the back-off sub outer wall of corresponding back-off wheel, along circumference, be radially evenly distributed with the axial mounting groove of at least two, axially in mounting groove, be installed with feather key, on the back-off wheel inwall of corresponding feather key, there is axial locked groove, the outer end of feather key is positioned at axial locked groove, on the back-off sub outer wall of feather key top, be installed with lock nut, the lower end inwall of expanding suspension cylinder and the upper end outer wall of hung drum joint are fixedly installed togather, the upper end of expanding suspension cylinder is sleeved on the outer wall of expansion tapered sleeve, in the external wall of upper portion of expanding suspension cylinder, there is suspension tooth, the bottom of hydraulic means, expansion cone, expansion tapered sleeve, expanding suspension cylinder, hung drum joint, between back-off wheel and back-off sub, form thrust chamber, on the bottom outer wall of hung drum joint, have annular on the mounting groove of giving up, give up have on the upper end outer wall of double male joint annular under the mounting groove of giving up, the top and bottom of releasing pup joint be fixedly mounted on respectively give up in mounting groove and under give up in mounting groove, on the outer wall of releasing pup joint, along circumference, be radially evenly fixed with the righting boss of at least three, the build the pressure external wall of upper portion of device of the lower end inwall of back-off sub and two-stage level is fixedly installed togather, on hydraulic means, there is the through hole of suppressing radially.
2. expansion type thermal recovery well tail pipe hanging device according to claim 1, is characterized in that hydraulic means comprises axle, fluid cylinder joint, fluid cylinder sliding axle and liquid cylinder in fluid cylinder, in fluid cylinder, the upper end outer wall of axle and the lower end inwall of drill stem conversion connector are fixedly installed togather, on the middle part inwall of fluid cylinder joint, be fixed with annular docking boss, in the fluid cylinder inner nosepiece wall of docking boss top and fluid cylinder, the lower end outer wall of axle is fixedly installed togather, the fluid cylinder inner nosepiece wall of docking boss below and the upper end inwall of fluid cylinder sliding axle are fixedly installed togather, the upper end inwall of the lower end of fluid cylinder sliding axle and back-off sub is fixedly installed togather, in the external wall of upper portion of fluid cylinder sliding axle, be set with expansion cone, on the expansion cone outer wall of positive stop lug boss top, be installed with liquid cylinder joint, in fluid cylinder, on the outer wall of axle, be installed with liquid cylinder righting hoop, in fluid cylinder between liquid cylinder righting hoop and tool joint, on axle outer wall, be set with abutment sleeve, on the outer wall of liquid cylinder righting hoop, along circumference, be radially evenly distributed with the righting hoop boss of at least three, the upper end of liquid cylinder is sleeved on the liquid cylinder righting hoop outer wall of righting hoop boss below, the lower end inwall of liquid cylinder and the outer wall of liquid cylinder joint are fixedly installed togather, on fluid cylinder joint and docking boss, there is the through hole of suppressing radially, on the fluid cylinder joint outer wall of suppressing above through hole, be fixed with minute chamber boss of annular, fluid cylinder joint, divide chamber boss, liquid cylinder, mineralization pressure counter balance pocket between axle in liquid cylinder righting hoop and fluid cylinder, on liquid cylinder righting hoop, along circumference, be radially distributed with axial pressure compensation opening, fluid cylinder joint, divide chamber boss, liquid cylinder, liquid cylinder joint, mineralization pressure chamber between expansion cone and fluid cylinder sliding axle, the bottom of fluid cylinder sliding axle, expansion cone, expansion tapered sleeve, expanding suspension cylinder, hung drum joint, between back-off wheel and back-off sub, form thrust chamber.
3. expansion type thermal recovery well tail pipe hanging device according to claim 2, it is characterized in that two-stage build the pressure device comprise catch spherojoint, ball seat and catch ball stopper plate expands, the lower end outside of catching spherojoint be fixed with that external diameter is less than respectively hung drum joint internal diameter and the double male joint internal diameter of giving up catch ball cylinder, on the lower end inwall of back-off sub, there is installation annular groove, the top of catching spherojoint is fixedly mounted on installs in annular groove, catch on the inwall of spherojoint and be installed with by expanded spheres seat pin nail the expansion ball seat that there is axial passage inside, catch the upper surface of spherojoint and the upper surface of expansion ball seat forms up big and down small ball seat bellmouth, catch on the inwall of ball cylinder lower end and be installed with and catch ball stopper plate, there is the axial opening that can block expansion ball seat and pitching at the middle part of catching ball stopper plate, catching of opening outside has the circulation port that can block expansion ball seat and pitching on ball stopper plate.
4. expansion type thermal recovery well tail pipe hanging device according to claim 3, is characterized in that catching on ball cylinder along even circumferential and is distributed with the radial direction through hole inside and outside the perforation of four row, often shows four radial direction through hole; Or/and, on the outer wall of releasing pup joint, along circumference, be radially evenly fixed with the righting boss of at least three.
5. according to the expansion type thermal recovery well tail pipe hanging device described in claim 3 or 4, it is characterized in that between axle, being installed with sealing ring in drill stem conversion connector and fluid cylinder, between minute chamber boss and liquid cylinder, be installed with sealing ring, in fluid cylinder joint and fluid cylinder, between axle, be installed with sealing ring, between fluid cylinder joint and fluid cylinder sliding axle, be installed with sealing ring, between liquid cylinder joint and expansion cone, be installed with sealing ring, between expansion cone and expansion tapered sleeve, be installed with sealing ring, between expansion cone and fluid cylinder sliding axle, be installed with sealing ring, between back-off sub and fluid cylinder sliding axle, be installed with sealing ring, catch between spherojoint and back-off sub and be installed with sealing ring, catch between spherojoint and expansion ball seat and be installed with sealing ring, between hung drum joint and releasing pup joint, be installed with sealing ring, releasing pup joint and give up and be installed with sealing ring between double male joint.
6. according to the expansion type thermal recovery well tail pipe hanging device described in claim 3 or 4, it is characterized in that the lower end inwall of expanding suspension cylinder and the upper end outer wall of hung drum joint are fixedly installed togather by screw thread, the top and bottom of releasing pup joint by screw thread, be fixedly mounted on respectively in the mounting groove of giving up and under give up in mounting groove, in fluid cylinder, the upper end outer wall of axle and the lower end inwall of drill stem conversion connector are fixedly installed togather by screw thread, in the fluid cylinder inner nosepiece wall of docking boss top and fluid cylinder, the lower end outer wall of axle is fixedly installed togather by screw thread, the fluid cylinder inner nosepiece wall of docking boss below and the upper end inwall of fluid cylinder sliding axle are fixedly installed togather by screw thread, the upper end inwall of the lower end of fluid cylinder sliding axle and back-off sub is fixedly installed togather by screw thread, on the expansion cone outer wall of positive stop lug boss top, by screw thread, be installed with liquid cylinder joint, the lower end inwall of liquid cylinder and the outer wall of liquid cylinder joint are fixedly installed togather by screw thread, the top of catching spherojoint is fixedly mounted on and is installed in annular groove by screw thread, catch on the inwall of ball cylinder lower end and be installed with and catch ball stopper plate by screw thread, there are internal thread or external screw thread in the upper end of drill stem conversion connector.
7. expansion type thermal recovery well tail pipe hanging device according to claim 5, it is characterized in that the lower end inwall of expanding suspension cylinder and the upper end outer wall of hung drum joint are fixedly installed togather by screw thread, the top and bottom of releasing pup joint by screw thread, be fixedly mounted on respectively in the mounting groove of giving up and under give up in mounting groove, in fluid cylinder, the upper end outer wall of axle and the lower end inwall of drill stem conversion connector are fixedly installed togather by screw thread, in the fluid cylinder inner nosepiece wall of docking boss top and fluid cylinder, the lower end outer wall of axle is fixedly installed togather by screw thread, the fluid cylinder inner nosepiece wall of docking boss below and the upper end inwall of fluid cylinder sliding axle are fixedly installed togather by screw thread, the upper end inwall of the lower end of fluid cylinder sliding axle and back-off sub is fixedly installed togather by screw thread, on the expansion cone outer wall of positive stop lug boss top, by screw thread, be installed with liquid cylinder joint, the lower end inwall of liquid cylinder and the outer wall of liquid cylinder joint are fixedly installed togather by screw thread, the top of catching spherojoint is fixedly mounted on and is installed in annular groove by screw thread, catch on the inwall of ball cylinder lower end and be installed with and catch ball stopper plate by screw thread, there are internal thread or external screw thread in the upper end of drill stem conversion connector.
8. according to the expansion type thermal recovery well tail pipe hanging device described in claim 3 or 4, it is characterized in that releasing pup joint upper end and on give up and between mounting groove, be installed with backing-up screw, the lower end of releasing pup joint and under give up and between mounting groove, be installed with backing-up screw, in fluid cylinder, between the upper end of axle and the lower end of drill stem conversion connector, be installed with backing-up screw, axially in mounting groove, by backing-up screw, be installed with feather key, in the fluid cylinder joint of docking boss top and fluid cylinder, between the lower end of axle, be installed with backing-up screw, between the fluid cylinder joint of docking boss below and the upper end of fluid cylinder sliding axle, be installed with backing-up screw, between the lower end of fluid cylinder sliding axle and the upper end of back-off sub, be installed with backing-up screw, between the lower end of the upper end of expansion cone and liquid cylinder joint, be installed with backing-up screw, catch spherojoint and install between annular groove and be installed with backing-up screw, catch ball cylinder lower end and catch between ball stopper plate and be installed with backing-up screw, the inner side, upper end of liquid cylinder righting hoop is fixed with annular installation base, on the liquid cylinder righting hoop in installation base outside, along circumference, be radially distributed with axial pressure compensation opening, in fluid cylinder between installation base and drill stem conversion connector, on axle outer wall, be set with abutment sleeve, in installation base and fluid cylinder, between the outer wall of axle, be installed with backing-up screw.
9. expansion type thermal recovery well tail pipe hanging device according to claim 5, it is characterized in that releasing pup joint upper end and on give up and between mounting groove, be installed with backing-up screw, the lower end of releasing pup joint and under give up and between mounting groove, be installed with backing-up screw, in fluid cylinder, between the upper end of axle and the lower end of drill stem conversion connector, be installed with backing-up screw, axially in mounting groove, by backing-up screw, be installed with feather key, in the fluid cylinder joint of docking boss top and fluid cylinder, between the lower end of axle, be installed with backing-up screw, between the fluid cylinder joint of docking boss below and the upper end of fluid cylinder sliding axle, be installed with backing-up screw, between the lower end of fluid cylinder sliding axle and the upper end of back-off sub, be installed with backing-up screw, between the lower end of the upper end of expansion cone and liquid cylinder joint, be installed with backing-up screw, catch spherojoint and install between annular groove and be installed with backing-up screw, catch ball cylinder lower end and catch between ball stopper plate and be installed with backing-up screw, the inner side, upper end of liquid cylinder righting hoop is fixed with annular installation base, on the liquid cylinder righting hoop in installation base outside, along circumference, be radially distributed with axial pressure compensation opening, in fluid cylinder between installation base and drill stem conversion connector, on axle outer wall, be set with abutment sleeve, in installation base and fluid cylinder, between the outer wall of axle, be installed with backing-up screw.
10. expansion type thermal recovery well tail pipe hanging device according to claim 7, it is characterized in that releasing pup joint upper end and on give up and between mounting groove, be installed with backing-up screw, the lower end of releasing pup joint and under give up and between mounting groove, be installed with backing-up screw, in fluid cylinder, between the upper end of axle and the lower end of drill stem conversion connector, be installed with backing-up screw, axially in mounting groove, by backing-up screw, be installed with feather key, in the fluid cylinder joint of docking boss top and fluid cylinder, between the lower end of axle, be installed with backing-up screw, between the fluid cylinder joint of docking boss below and the upper end of fluid cylinder sliding axle, be installed with backing-up screw, between the lower end of fluid cylinder sliding axle and the upper end of back-off sub, be installed with backing-up screw, between the lower end of the upper end of expansion cone and liquid cylinder joint, be installed with backing-up screw, catch spherojoint and install between annular groove and be installed with backing-up screw, catch ball cylinder lower end and catch between ball stopper plate and be installed with backing-up screw, the inner side, upper end of liquid cylinder righting hoop is fixed with annular installation base, on the liquid cylinder righting hoop in installation base outside, along circumference, be radially distributed with axial pressure compensation opening, in fluid cylinder between installation base and drill stem conversion connector, on axle outer wall, be set with abutment sleeve, in installation base and fluid cylinder, between the outer wall of axle, be installed with backing-up screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579782.XU CN203441409U (en) | 2013-09-18 | 2013-09-18 | Expansion type tail pipe hanging device of thermal production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579782.XU CN203441409U (en) | 2013-09-18 | 2013-09-18 | Expansion type tail pipe hanging device of thermal production well |
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| Publication Number | Publication Date |
|---|---|
| CN203441409U true CN203441409U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320579782.XU Withdrawn - After Issue CN203441409U (en) | 2013-09-18 | 2013-09-18 | Expansion type tail pipe hanging device of thermal production well |
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| Country | Link |
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| CN (1) | CN203441409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485739A (en) * | 2013-09-18 | 2014-01-01 | 新疆贝肯能源工程股份有限公司 | Expansion type thermal production well tail pipe suspension device |
| CN104265236B (en) * | 2014-07-28 | 2017-01-04 | 西南石油大学 | Drilling liner cementing tail pipe seat extension ball injector and control method thereof |
| CN112696162A (en) * | 2021-03-12 | 2021-04-23 | 东营市福利德石油科技开发有限责任公司 | Downhole double-tube sliding self-sealing tool |
-
2013
- 2013-09-18 CN CN201320579782.XU patent/CN203441409U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485739A (en) * | 2013-09-18 | 2014-01-01 | 新疆贝肯能源工程股份有限公司 | Expansion type thermal production well tail pipe suspension device |
| CN103485739B (en) * | 2013-09-18 | 2016-09-21 | 新疆贝肯能源工程股份有限公司 | Expansion type thermal production well tail pipe suspension device |
| CN104265236B (en) * | 2014-07-28 | 2017-01-04 | 西南石油大学 | Drilling liner cementing tail pipe seat extension ball injector and control method thereof |
| CN112696162A (en) * | 2021-03-12 | 2021-04-23 | 东营市福利德石油科技开发有限责任公司 | Downhole double-tube sliding self-sealing tool |
| CN112696162B (en) * | 2021-03-12 | 2022-07-01 | 东营市福利德石油科技开发有限责任公司 | Downhole double-tube sliding self-sealing tool |
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