CN201943677U

CN201943677U - External adjustment stopper with double functions of polymer drive and water drive

Info

Publication number: CN201943677U
Application number: CN2011200402177U
Authority: CN
Inventors: 董力维
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-15
Filing date: 2011-02-15
Publication date: 2011-08-24
Anticipated expiration: 2021-02-15

Abstract

The utility model relates to an external adjustment stopper with double functions of polymer drive and water drive. The external adjustment stopper mainly solves the problems that no adjustable stopper is matched with simultaneous testing and adjusting instrument of a polymer injection layered well; and during water injection, the traditional stopper has a small automatic adjustment range, so that the whole stopper is easy to move up and down, and a plunger can rotate easily. The external-adjustment stopper is characterized in that a convex edge (16) is axially arranged outside a press cap (4); the lower part of the plunger (7) is in a conical shape, a lower conical head is in circular-arc transition, a correcting and limiting sleeve (6) is arranged in the lower part of a main barrel (2) outside the plunger (7) and fixed by a rotation-preventing pin (13), and the inner end of the rotation-preventing pin (13) is arranged in an axial key slot (4) of the plunger (7); and the axial vertical distance L between an extended clamp corner (15) of a cam (8) and the center of the cam (8) is 3 millimeters. During polymer injection and water injection, the external adjustment stopper with double functions of polymer drive and water drive has the advantages of large automatic adjustment range, good integral stability and long service life and is suitable for water injection or polymer injection.

Description

Poly-expelling water drives difunctional investigation mission outside the city or town blanking plug

Technical field:

The utility model relates to the used blanking plug of oil recovery field, oil field eccentric injection mandrel, and especially poly-expelling water drives difunctional investigation mission outside the city or town blanking plug.

Background technology:

In oil recovery field, oil field, adopt water injection well seperated layer water injection or polymer injection to improve recovery ratio.Water injection well or polymer injection well generally adopt eccentric injection mandrel, and water injection rate or polymer injection amount are to control by the blanking plug in the eccentric injection mandrel.Existing gathering driven layering commissioning process complexity, and efficient is low; Particularly do not develop and the supporting adjustable blanking plug of demodulating apparatus while surveying, poly-efficient and quality are annotated in influence.When water filling, existing adjustable blanking plug is because the automatic adjustable range of reasons in structure is little, and adjustable range is between the 0-10 millimeter.The whole easy rotation of blanking plug and the moving plunger rotational problems that reaches of going here and there up and down reduce adjusting operating efficiency and accuracy rate when adjusting, influence the water filling quality.

The utility model content:

Demodulating apparatus does not have supporting adjustable blanking plug while surveying in order to solve the poly-layering well of notes; The existing automatic adjustable range of blanking plug is little during water filling, the whole problem that easily string is moving and plunger easily rotates up and down of blanking plug.The utility model provides a kind of poly-expelling water to drive difunctional investigation mission outside the city or town blanking plug.It is big poly-expelling water to drive difunctional investigation mission outside the city or town blanking plug automatic adjustable range when annotating poly-and water filling, and the blanking plug resistance to overturning is good, and long service life is applicable to water filling or annotates poly-.

The technical solution of the utility model is: this poly-expelling water drives difunctional investigation mission outside the city or town blanking plug and comprises torsion spring sheath, main tube, torsion spring seat, pressure cap, regulating shaft, sets upright stop collar, plunger, cam, spring positioning sleeve and spring housing.The torsion spring sheath is by in upper end outer ring boss deck is on main tube; The torsion spring seat is by on the stage of middle part outer ring boss deck in the torsion spring sheath; Pressure cap is by being threaded in outside the main tube upper end, and pressure cap axially has fin outward, outside the torsion spring seat and between pressure cap stage clip is arranged; The pulling bar passes pressure cap and passes through bottom outer ring boss deck on the torsion spring seat; Regulating shaft is connected in the pulling bar bottom, on the outer ring boss of regulating shaft bottom screw thread is arranged, and with main tube inner step on screw thread match, regulating shaft lower endcaps head places in the blind hole of plunger upper end, the gap of catch is enclosed within cap head upper end neck, and is welded on the plunger upper end; The spring positioning sleeve is by in the main tube of dowel fixes on the regulating shaft annular boss; Spring housing is placed in regulating shaft annular boss upper end, is equipped with spring outside the spring housing and between the spring positioning sleeve; The plunger upper end places in the main tube bottom, the plunger bottom is conical, following conehead is an arc transition, the main outward tube of plunger bottom is built-in with sets upright stop collar, plunger lower end and eccentric injection mandrel eccentric orfice are movingly, setting upright stop collar endoporus and plunger outer diameter fit clearance is the 0.08-0.12 millimeter, and by the anti-rotation dowel fixes, anti-rotation pin the inner places in the plunger axial keyway; Cam and cam returning spring are connected in the main tube top by axle, on the main barrel of cam correspondence strip hole are arranged, and the axial vertical distance L that the extension Ka Jiao of cam delays outward with cam center is 3 millimeters; Main tube has sealing ring outside the bottom.

The cylinder bottom of the plunger in the such scheme is connected with 1 spheroidal by the circular groove transition, and the spheroidal bottom is connected with taper shape, and conical conehead down is an arc transition; The cylinder bottom of plunger is connected with 2 spheroidals by the circular groove transition, and terminal spheroidal bottom is connected with taper shape, and conical conehead down is an arc transition.

The utlity model has following beneficial effect: this poly-expelling water drives difunctional investigation mission outside the city or town blanking plug because employing is provided with the structure that fin is axially arranged outside pressure cap.Utilize fin to match, in water filling or the poly-adjustment process of notes, prevent that effectively this poly-expelling water from driving difunctional investigation mission outside the city or town blanking plug unitary rotation phenomenon and producing, make the adjusting operation time saving and energy saving, the efficient raising with axial notch in the injection well downhole flow regulator seating nipple eccentric orfice.Again owing to adopt the attach structure of the extension Ka Jiao that improves cam.Eliminate axial notch fit clearance in extension Ka Jiao and the injection well downhole flow regulator seating nipple eccentric orfice, make that being somebody's turn to do poly-expelling water drives difunctional investigation mission outside the city or town blanking plug resistance to overturning and regulate accurately raising.Also, on the outer ring boss of regulating shaft bottom screw thread is arranged owing to adopt regulating shaft to be connected in the pulling bar bottom, and with main tube inner step on screw thread match, the regulating shaft lower end is connected with the structure of plunger.Utilize pulling bar and regulating shaft to drive plunger and move up and down, change the water injection hole size of eccentric injection mandrel eccentric orfice, thereby it is big to enlarge automatic adjustable range, reaches the injection allocation water yield of designing requirement.Last the spheroidal bottom is connected with taper shape owing to adopt the cylinder bottom of plunger to be connected with 1-2 spheroidal by the circular groove transition, and conical conehead down is the arc transition structure.Utilize the plunger of conehead under spheroidal and the arc transition taper shape, the poly-pressure of notes is reduced greatly, the polymer shearing force is reduced greatly, thereby be adapted to annotate poly-demand, realize the poly-difunctional purpose of water filling notes.It is big thus should poly-expelling water to drive difunctional investigation mission outside the city or town blanking plug automatic adjustable range when annotating poly-and water filling, and the blanking plug resistance to overturning is good, and long service life is applicable to water filling or annotates poly-.

Description of drawings:

Accompanying drawing 1 is the utility model structural representation;

Accompanying drawing 2 is Fig. 1 vertical views;

Accompanying drawing 3 is that plunger is 1 spheroidal structural representation among Fig. 1;

Accompanying drawing 4 is that plunger is 2 spheroidal structural representations among Fig. 1.

1-torsion spring sheath among the figure, 2-master's tube, 3-torsion spring seat, the 4-pressure cap, the 5-regulating shaft, 6-sets upright stop collar, 7-plunger, 8-cam, 9-spring positioning sleeve, 10-spring housing, 11-pulling bar, 12-catch, 13-anti-rotation pin, 14-keyway, 15-extension Ka Jiao, 16-fin.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

As shown in drawings, this poly-expelling water drives difunctional investigation mission outside the city or town blanking plug and comprises torsion spring sheath 1, main tube 2, torsion spring seat 3, pressure cap 4, regulating shaft 5, sets upright stop collar 6, plunger 7, cam 8, spring positioning sleeve 9 and spring housing 10.

Torsion spring sheath 1 is barrel-shaped, and the bottom surface has through hole between two parties, and annular boss is arranged outside the upper end, and torsion spring sheath 1 passes through upper end outer ring boss deck in main tube 2 upper ends.

Torsion spring seat 3 is a tubulose, and annular boss is arranged outside the middle part, and on the stage of middle part outer ring boss deck in torsion spring sheath 1, torsion spring sheath 1 through hole is passed in torsion spring seat 3 bottoms.

Pressure cap 4 is a tubulose, pressure cap 4 is by being threaded in outside main tube 2 upper ends, fin 16 is axially arranged outside the pressure cap 4, fin 16 cutting ferrules are in injection well downhole flow regulator seating nipple eccentric orfice in the axial notch, thereby play the effect that this poly-expelling water drives difunctional investigation mission outside the city or town blanking plug unitary rotation of placing restrictions on, make the adjusting operation time saving and energy saving, improve and regulate efficient.Torsion spring seat 3 is outer to have stage clip with 4 of pressure caps, 4 main interconnect functions of pressure cap.

Have by pin outside pulling bar 11 upper ends to be connected with regulating block, annular boss is arranged outside the middle part, porose in the bottom, pulling bar 11 passes pressure cap 4 and passes through bottom outer ring boss deck on torsion spring seat 3, and pulling bar 11 mainly plays pulling and power transmission effect.

Regulating shaft 5 is shaft-like, annular boss is arranged outside the bottom, screw thread is arranged on the annular boss, there is the cap head lower end, regulating shaft 5 is connected in pulling bar 11 bottoms, can also adopt regulating shaft 5 tops to insert in pulling bar 11 bottom holes by the cubic bar mode that links to each other with cubic hole, utilize again at regulating shaft 5 pin to be set and to drive the mode that regulating shaft 5 rotates.On the regulating shaft 5 bottom outer ring boss screw thread is arranged, and with main tube 2 inner steps on screw thread match, regulating shaft 5 lower endcaps heads place in the plunger 7 upper end blind holes, the gap of catch 12 is enclosed within cap head upper end neck, and be welded on plunger 7 upper ends, when regulating shaft 5 rotated, plunger 7 moved up and down thereupon, realized that the down-hole is regulated water injection rate automatically or notes gather the function of measuring.

Spring positioning sleeve 9 is by in the main tube 2 of dowel fixes on regulating shaft 5 annular boss; Spring housing 10 is placed in regulating shaft 5 annular boss upper end, is equipped with spring outside the spring housing 10 and between the spring positioning sleeve 9, lays spring by spring positioning sleeve 9 and spring housing 10, eliminates gap on the regulating shaft 5 by spring.

Plunger 7 tops are cylindrical, the top reduced diameter portion places in main tube 2 bottoms, cylindrical lower portion is conical, conical conehead down is an arc transition, the cylindrical lower portion that also can be processed into plunger 7 is connected with 1 spheroidal by the circular groove transition, the spheroidal bottom is conical, conical conehead down is an arc transition, after the cylinder bottom that also can be processed into plunger 7 is connected with 1 spheroidal by the circular groove transition, be connected with 1 spheroidal by the circular groove transition again, terminal spheroidal bottom is conical, conical conehead down is an arc transition, by the spheroidal step-down, improve the step-down ability, minimizing is to the shearing force of polymer, be adapted to annotate poly-needs, annotate poly-designing requirement according to injection well, the cylindrical lower portion of design plunger 7 connects the spheroidal number by the circular groove transition, plunger 7 outer main tubes 2 bottoms are built-in with sets upright stop collar 6, plunger 7 lower ends and eccentric injection mandrel eccentric orfice are movingly, set upright stop collar 6 endoporus and plunger 7 external diameter fit clearances are 10 millimeters, and fixing by anti-rotation pin 13, anti-rotation pin 13 the inners place in plunger 7 axial keyways 14, at first, fixedly set upright stop collar 6 by anti-rotation pin 13, placed restrictions on the stroke and the rotation of plunger 7 again by anti-rotation pin 13, anti-rotation pin 13 had both guaranteed that plunger 7 can move up and down, and prevented that again plunger 7 from rotating, make and regulate accurately, set upright 6 centralizing functions of stop collar, simultaneously by adopting 10 millimeters fit clearances with plunger 7, so seal again because of setting upright stop collar 6, thereby both guaranteed that plunger 7 can move up and down, reached the tight sealing of most energy again.

Cam 8 and cam returning spring are connected in main tube 2 tops by axle, on main tube 2 walls of cam 8 correspondences strip hole is arranged, the extension card angle 15 of cam 8 can be stretched out outside the main tube 2 by strip hole, be stuck in the interior axial notch of injection well downhole flow regulator seating nipple eccentric orfice, the axial vertical distance L that the extension card angle 15 of cam 8 is outer to be delayed with cam 8 centers is 3 millimeters, because extension card angle 15 is improved 3 millimeters, dwindle greatly with clamping gap in the axial notch in the injection well downhole flow regulator seating nipple eccentric orfice, eliminate and to drive the moving phenomenon of the whole string of difunctional investigation mission outside the city or town blanking plug by poly-expelling water, reduce the damage of parts, prolong the application life that this poly-expelling water drives difunctional investigation mission outside the city or town blanking plug.

Main tube 2 bottoms are outside equipped with 2 sealing rings, seal.

This poly-expelling water drives difunctional investigation mission outside the city or town blanking plug integral body and mainly is grouped into by pulling, locking, running part and adjusting portion.The pulling part is identical with the existing connected mode and the kind of drive, just outside pressure cap 4, axially be provided with the fin 16 of arc transition, effectively prevented the unitary rotation that this poly-expelling water drives difunctional investigation mission outside the city or town blanking plug, made the adjusting operation time saving and energy saving, improved and regulate efficient.The lock part has been improved 3 millimeters with the extension card angle 15 of cam 8, dwindle greatly with injection well downhole flow regulator seating nipple eccentric orfice in clamping gap in the axial notch, eliminate and should drive the moving phenomenon of the whole string of difunctional investigation mission outside the city or town blanking plug by poly-expelling water.It is identical with existing mode to regulate part, just plunger 7 employing tops are cylindrical, the top reduced diameter portion places in main tube 2 bottoms, cylindrical lower portion is conical, conical conehead down is an arc transition, or adopt the cylindrical lower portion of plunger 7 to be connected with 1-2 spheroidal by the circular groove transition, terminal spheroidal bottom is conical, conical conehead down is an arc transition, annotating the arc transition of passing through conehead under spheroidal, taper shape and the taper shape when gathering, make and annotate poly-pressure drop raising, reduce the polymer shearing force.Plunger 7 connects employing by setting upright in stop collar 6 and outer main tube 2 bottoms, and it is fixing by anti-rotation pin 13, anti-rotation pin 13 the inners place the connected mode in plunger 7 axial keyways 14, and set upright stop collar 6 endoporus and plunger 7 external diameter fit clearances are 10 millimeters, at first, fixedly set upright stop collar 6 by anti-rotation pin 13, place restrictions on the stroke and the rotation of plunger 7 again by anti-rotation pin 13, anti-rotation pin 13 had both guaranteed that plunger 7 can move up and down, prevent that again plunger 7 from rotating, make and regulate accurately, set upright 6 of stop collars and set upright and sealing function, both guaranteed that plunger 7 can move up and down, reached the tight sealing of most energy again.Adopt pulling bar 11 to drive regulating shaft 5 rotations at last, screw thread matches with main tube 2 screw threads on the regulating shaft 5, making regulating shaft 5 drive plunger 7 moves up and down, utilize moving up and down of plunger 7 to change the water injection hole size, thereby expansion adjustable range, by the scope of 0-10 millimeter, bring up to 4-20 millimeter scope, one times of enlarged proximal.

Operating principle:

Should gather expelling water earlier drives difunctional investigation mission outside the city or town blanking plug and renders in the eccentric injection mandrel eccentric orfice, rotating pulling bar 11 by testing arrangement, pulling bar 11 drives regulating shaft 5 and rotates, have on the regulating shaft 5 bottom outer ring boss that screw thread matches on screw thread and main tube 2 inner steps, making regulating shaft 5 drive plunger 7 moves up and down, water injection hole progressively amplified when plunger 7 moved up, move on to more than the water injection hole on the plunger 6, water injection hole reaches maximum injecting quantity, regulating shaft 5 continues rotation and realizes idle running by spring positioning sleeve 9, reach protection and regulate the effect of motor, spring housing 10 upwards is pressed on the spring positioning sleeve 9 and prevents to leak, spring plays equilibrium pressure, and assurance regulating shaft 5 is rotated down and is connected on main tube 2 internal threads; Regulating shaft 5 moves down water injection hole and progressively dwindles, and breaks away from main tube 2 internal threads up to regulating shaft 5, and plunger 7 bottoms move down into below the water injection hole, and it is minimum that water injection hole reaches, and regulating shaft 5 is realized idle running by anti-rotation pin 13, and prevents plunger 7 and the element falling that is connected.Should poly-expelling water drive difunctional investigation mission outside the city or town blanking plug and be not only applicable to water filling, be applicable to also and annotate poly-ly that and in water filling or annotate when poly-, adjustable range is big, resistance to overturning is good, and the pressure drop that produces when poly-is big annotating, and is little to the polymer shearing force, long service life.

Should drive difunctional investigation mission outside the city or town blanking plug at 0～10 millimeter of the existing blanking plug adjustable range in oil field by poly-expelling water, and incompatiblely annotate poly-and development, the scope of application expands all water fillings to and annotates poly-interval.Testing efficiency can be enhanced about more than once, and the seperated layer water injection effect will be got a qualitative improvement, and obviously improves the water drive development effectiveness, further improves recovery ratio.Huge economic benefit and social benefit will be produced.This technology is in domestic and international top standard at present.

Claims

1. a poly-expelling water drives difunctional investigation mission outside the city or town blanking plug, comprise torsion spring sheath (1), main tube (2), torsion spring seat (3), pressure cap (4), regulating shaft (5), set upright stop collar (6), plunger (7), cam (8), spring positioning sleeve (9) and spring housing (10), it is characterized in that: torsion spring sheath (1) passes through upper end outer ring boss deck in main tube (2) upper end; Torsion spring seat (3) is by on the stage of middle part outer ring boss deck in torsion spring sheath (1); Pressure cap (4) axially has fin (16) by being threaded in outside main tube (2) upper end outside the pressure cap (4), outside the torsion spring seat (3) and between pressure cap (4) stage clip is arranged; Pulling bar (11) passes pressure cap (4) and passes through bottom outer ring boss deck on torsion spring seat (3); Regulating shaft (5) is connected in pulling bar (11) bottom, on the outer ring boss of regulating shaft (5) bottom screw thread is arranged, and with main tube (2) inner step on screw thread match, regulating shaft (5) lower endcaps head places in the blind hole of plunger (7) upper end, the gap of catch (12) is enclosed within cap head upper end neck, and is welded on plunger (7) upper end; Spring positioning sleeve (9) is by in the main tube (2) of dowel fixes on regulating shaft (5) annular boss; Spring housing (10) is placed in regulating shaft (5) annular boss upper end, is equipped with spring outside the spring housing (10) and between the spring positioning sleeve (9); Plunger (7) upper end places in main tube (2) bottom, plunger (7) bottom is conical, following conehead is an arc transition, the outer main tube of plunger (7) (2) bottom is built-in with sets upright stop collar (6), plunger (7) lower end and eccentric injection mandrel eccentric orfice are movingly, set upright stop collar (6) endoporus and plunger (7) external diameter fit clearance is the 0.08-0.12 millimeter, and fixing by anti-rotation pin (13), and anti-rotation pin (13) the inner places in plunger (7) axial keyway (14); Cam (8) and cam returning spring are connected in main tube (2) top by axle, on corresponding main tube (2) wall of cam (8) strip hole are arranged, and the axial vertical distance (L) that the extension Ka Jiao (15) of cam (8) is outer to be delayed with cam (8) center is 3 millimeters; Main tube has sealing ring outside (2) bottom.

2. poly-expelling water according to claim 1 drives difunctional investigation mission outside the city or town blanking plug, it is characterized in that: the cylinder bottom of plunger (7) is connected with 1 spheroidal by the circular groove transition, and the spheroidal bottom is connected with taper shape, and conical conehead down is an arc transition.

3. poly-expelling water according to claim 2 drives difunctional investigation mission outside the city or town blanking plug, it is characterized in that: the cylinder bottom of plunger (7) is connected with 2 spheroidals by the circular groove transition, and terminal spheroidal bottom is connected with taper shape, and conical conehead down is an arc transition.