CN204532267U - Drifting scraping integrated tool - Google Patents

Drifting scraping integrated tool Download PDF

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Publication number
CN204532267U
CN204532267U CN201520115370.XU CN201520115370U CN204532267U CN 204532267 U CN204532267 U CN 204532267U CN 201520115370 U CN201520115370 U CN 201520115370U CN 204532267 U CN204532267 U CN 204532267U
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CN
China
Prior art keywords
scraping
drifting
cylinder
supporting spring
cutter cylinder
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Withdrawn - After Issue
Application number
CN201520115370.XU
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Chinese (zh)
Inventor
施玉�
李君�
赵旭亮
张德海
吕春柳
马振
张建
喜恒坤
刘斌
孙宝功
李江南
赵小满
任德强
黄智�
蒋雪
张健
黄兴国
张远健
黄欢
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Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN201520115370.XU priority Critical patent/CN204532267U/en
Application granted granted Critical
Publication of CN204532267U publication Critical patent/CN204532267U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of drifting scraping integrated tool, and comprise scraping section and drifting joint, the inner chamber of drifting joint is provided with packer assembly; Scraping section comprises cutter cylinder, type scraping knife, hydraulic cylinder and supporting spring, and cutter cylinder is connected with drifting joint, the inner chamber of cutter cylinder and the intracavity inter-connection of drifting joint, and forms by packer assembly the chamber that builds the pressure; Type scraping knife is located at the lateral wall of cutter cylinder, and one end of type scraping knife is the fixed end connecting cutter cylinder lateral wall, and the other end is free end; Hydraulic cylinder is located at the lateral wall of cutter cylinder, and is connected with the chamber that builds the pressure; Supporting spring is located at the lateral wall of cutter cylinder, and between type scraping knife and hydraulic cylinder, one end of supporting spring is connected with hydraulic cylinder, by controlling to build the pressure the pressure in chamber, make Driven by Hydraulic Cylinder supporting spring insert between type scraping knife and cutter cylinder by free end, supporting spring makes type scraping knife expand and forms scraping external diameter.The utility model has both drifting and scraping function, and can to the strengthening scraping of emphasis scraping position.

Description

Drifting scraping integrated tool
Technical field
The utility model relates to the downhole tool in oil recovery field, especially a kind of drifting scraping integrated tool having drifting, scraping internal surface of sleeve pipe function concurrently.
Background technology
Drifting and scraping are the basic working procedure in underground work.Drifting is the conventional means of latus rectum size in detection thimble, oil pipe, drilling rod and other pipes, check after its distortion by biggest size of element, be well workover, operation detect requisite technique.Scraping internal surface of sleeve pipe, eliminating casing wall cement, hard wax, salt crust and borehole burr, is one important procedure of workover treatment, for entering under downhole tool and the important role that normally works.The things such as the iron oxide that casing scraper produces after can be used for removing the cement block remained on internal surface of sleeve pipe, cement sheath, hard wax, various saline crystallization and deposit, perforation burrs and sleeve pipe corrosion, so that unblocked underground enters various lower well tool.Especially lower well tool and internal surface of sleeve pipe annular space less time, more should fully scraping, use scraper to become a kind of requisite operation, enter under its object is to raising instrument and the success rate of operation (the setting success rate etc. of such as packer).
At present, on-the-spot conventional process sequence is first drifting, then could enter down scraper and carry out scraping, repeatedly play lower tubular column work consuming time-consuming, repeatedly play lower tubular column and tubing string also can be caused to wear and tear; In addition, existing scraper can only carry out full pit shaft scraping, for emphasis doctor locations scraping scarce capacity.
Utility model content
The purpose of this utility model is to provide a kind of drifting scraping integrated tool, to solve drifting that prior art exists and scraping cannot carry out, problem to emphasis doctor locations scraping scarce capacity simultaneously.
For achieving the above object, the utility model proposes a kind of drifting scraping integrated tool, it comprises: drifting joint, in a tubular form, is provided with packer assembly in the inner chamber of described drifting joint; Scraping section, comprising: cutter cylinder, in a tubular form, is connected with described drifting joint, the inner chamber of described cutter cylinder and the intracavity inter-connection of described drifting joint, and the inner chamber of described cutter cylinder forms by described packer assembly the chamber that builds the pressure; Type scraping knife, is located at the lateral wall of described cutter cylinder, and one end of described type scraping knife is the fixed end connecting described cutter cylinder lateral wall, and the other end is free end; Hydraulic cylinder, is located at the lateral wall of described cutter cylinder, and is connected with the described chamber that builds the pressure; Supporting spring, is located at the lateral wall of described cutter cylinder, and between described type scraping knife and described hydraulic cylinder, one end of described supporting spring is connected with described hydraulic cylinder; Wherein, by the pressure in the chamber that builds the pressure described in controlling, make supporting spring described in described Driven by Hydraulic Cylinder insert between described type scraping knife and described cutter cylinder by described free end, described supporting spring makes described type scraping knife expand and forms scraping external diameter.
Drifting scraping integrated tool as above, wherein, described hydraulic cylinder is enclosed by fluid cylinder inner sleeve and the fluid cylinder overcoat be positioned at outside described fluid cylinder inner sleeve and is formed, described fluid cylinder overcoat can be located at outside described cutter cylinder by sealing shroud slidably, one end of described supporting spring is connected with described fluid cylinder overcoat, described fluid cylinder inner sleeve sealing shroud is connected on outside described cutter cylinder, and described hydraulic cylinder is connected by the inlet opening being located at described cutter cylinder sidewall with the described chamber that builds the pressure; Wherein, under the state increasing to the first pressure in described hydraulic cylinder, described fluid cylinder overcoat drives described supporting spring to march to primary importance, and described type scraping knife is expanded to has the first scraping external diameter; By under the state of described first pressure increase to the second pressure in described hydraulic cylinder, described fluid cylinder overcoat drives described supporting spring to march to the second place, described type scraping knife is expanded to has the second scraping external diameter, distance between described primary importance and described fluid cylinder inner sleeve, be less than the distance between the described second place and described fluid cylinder inner sleeve, described second scraping external diameter is greater than described first scraping external diameter.
Drifting scraping integrated tool as above, wherein, lock ring is provided with between described fluid cylinder overcoat and described supporting spring, described lock ring is sheathed on outside described cutter cylinder, described lock ring can slide with described fluid cylinder overcoat and described supporting spring, described cutter cylinder lateral wall is arranged with locking slot, and under the state that described lock ring is clamped in described locking slot, described supporting spring is positioned at described primary importance.
Drifting scraping integrated tool as above, wherein, the sidewall of described drifting joint is provided with the well-flushing passage for well-flushing, and described packer assembly can be connected by the shear pin be connected in described well-flushing passage discretely with described drifting joint; In described hydraulic cylinder by described second pressure increase under the state of the 3rd pressure, described packer assembly cuts off described shear pin under the driving of the described cavity pressure that builds the pressure, and depart from described drifting joint, described chamber and the described hydraulic cylinder pressure relief of building the pressure, described fluid cylinder overcoat drives described supporting spring to return described primary importance, described type scraping knife is decreased to described first scraping external diameter by described second scraping external diameter, the intracavity inter-connection of described well-flushing passage and described cutter cylinder.
Drifting scraping integrated tool as above, wherein, described type scraping knife is multiple, and be intervally arranged along the circumference of described cutter cylinder, between the free end of described type scraping knife and the lateral wall of described cutter cylinder, there is opening, the inwall of described type scraping knife is inclined plane, and described inclined plane from described free end to described fixed end to tilting near the direction of described cutter cylinder lateral wall gradually.
Drifting scraping integrated tool as above, wherein, described supporting spring is multiple, and corresponding described type scraping knife is intervally arranged along the circumference of described cutter cylinder, one end of described supporting spring is the link connecting described hydraulic cylinder, the other end of described supporting spring is the insertion end for inserting between described inclined plane and the lateral wall of described cutter cylinder, and described supporting spring is skewed, and tilts to the direction away from described cutter cylinder lateral wall from described insertion end to described link.
Drifting scraping integrated tool as above, wherein, the lateral wall of described cutter cylinder is provided with multiple scraper reed, the corresponding described type scraping knife of described scraper reed is intervally arranged along the circumference of described cutter cylinder, one end and the described cutter cylinder of described scraper reed fix, the other end of described scraper reed convexes to form protuberance, and the fixed end correspondence of each described type scraping knife is connected with the protuberance of each described scraper reed.
Drifting scraping integrated tool as above, wherein, described fluid cylinder overcoat has the integrated first paragraph that is connected and second segment, described first paragraph sealing shroud is located at outside described cutter cylinder, described second segment sealing shroud is located at outside described fluid cylinder inner sleeve, and described first paragraph, described second segment and described fluid cylinder inner sleeve enclose and form described hydraulic cylinder.
Drifting scraping integrated tool as above, wherein, described packer assembly comprises sliding sleeve and steel ball, described sliding sleeve is connected by described shear pin with the inwall of described drifting joint, and engage with the inner wall sealing of described drifting joint, described steel ball sealing fits in the port of described sliding sleeve near described scraping section one end.
Drifting scraping integrated tool as above, wherein, described drifting scraping integrated tool is provided with two described scraping sections, and described in two, scraping section symmetry is connected to the two ends of box cupling, and scraping section described in connect successively two and described drifting joint form the pipe integrated instrument of syllogic dredging, scraping.
Feature and the advantage of drifting scraping integrated tool of the present utility model are:
1, drifting scraping integrated tool of the present utility model, its drifting joint has drifting effect, its scraping section is provided with type scraping knife, insert between type scraping knife and cutter cylinder by Driven by Hydraulic Cylinder supporting spring, type scraping knife is expanded, get final product scraping internal surface of sleeve pipe, drifting operation and scraping are carried out simultaneously, and without the need to repeatedly playing lower tubular column; In addition, owing to adopting hydraulic-driven, the scraping external diameter of type scraping knife can be changed by controlled pressure, be convenient to carry out scraping to emphasis doctor locations.
2, drifting scraping integrated tool of the present utility model, the sidewall of its drifting joint is provided with well-flushing passage, after scraping and drifting operation complete, by increasing the pressure built the pressure in chamber, drive packer assembly to depart from the sidewall of drifting joint, well-flushing passage is opened, just can carry out clean-out service.
3, drifting scraping integrated tool of the present utility model, convenient operation, can reduce maintenance cost, effectively can improve operating efficiency.
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 is the schematic diagram of scraping section in the utility model;
Fig. 2 is scraping section schematic diagram in working order in the utility model;
Fig. 3 is the assembling schematic diagram of scraping section and drifting joint;
Fig. 4 is the schematic diagram of the utility model embodiment.
Critical element label declaration:
1 scraping section
11 cutter cylinders 111 build the pressure chamber
12 fluid cylinder inner sleeve 121 sealing rings
13 fluid cylinder overcoat 131 hydraulic cylinder 132 sealing rings
133 first paragraph 134 second segments
14 back-up rings
15 supporting spring 151 elastic deformation spaces
16 type scraping knife 161 openings
17 scraper reed 171 intervals
18 lock ring 19 inlet openings
2 drifting joints
21 well-flushing passage 22 shear pin 23 sliding sleeves
24 steel balls
3 box cuplings
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 to Figure 3, the utility model provides a kind of drifting scraping integrated tool, comprise the scraping section 1 and drifting joint 2 that are connected, drifting joint 2 in a tubular form, for drifting operation, possess the function of drift size gauge tool, in the inner chamber of drifting joint 2, be provided with packer assembly, for cutting off the inner chamber of drifting joint 2.
As shown in Figure 1 and Figure 2, scraping section 1 comprises cutter cylinder 11, hydraulic cylinder 131 (or fluid cylinder), supporting spring 15 and type scraping knife 16, wherein, cutter cylinder 11 in a tubular form, cutter cylinder 11 is connected with drifting joint 2, the inner chamber of cutter cylinder 11 and the intracavity inter-connection of drifting joint 2, due to the packing effect of packer assembly, make the inner chamber of cutter cylinder 11 form the chamber 111 that builds the pressure, type scraping knife 16 is located at the lateral wall of cutter cylinder 11, and one end of type scraping knife 16 is the fixed end be connected with the lateral wall of described cutter cylinder, and the other end of type scraping knife 16 is free end, hydraulic cylinder 131 is located at the lateral wall of cutter cylinder 11, and be connected with the chamber 111 (or inner chamber of cutter cylinder 11) that builds the pressure of cutter cylinder 11, by controlling to build the pressure the pressure in chamber 111, get final product the motion of hydraulic control cylinder 131, such as, build the pressure chamber 111 with outside for pressing system (such as, from well head to the inner chamber of cutter cylinder conveying fluid under pressure) be connected, the outside pressing system that supplies is to chamber 111 and hydraulic cylinder 131 input pressure of building the pressure, controlled the pressure built the pressure in chamber for pressing system by outside, and then the pressure in hydraulic control cylinder 131, supporting spring 15 can be located at the lateral wall of cutter cylinder 11 slidably, and between type scraping knife 16 and hydraulic cylinder 131, one end of supporting spring 15 is connected with hydraulic cylinder 131, outside for pressing system, build the pressure chamber 111 and hydraulic cylinder 131 forms the fluid pressure drive device that supporting spring 15 can be driven to move, by controlling the pressure built the pressure in chamber 111, hydraulic cylinder 131 is made to drive supporting spring 15 to insert between type scraping knife 16 and cutter cylinder 11 by the free end of type scraping knife, supporting spring 15 is extruding type scraping knife 16 outwards, make type scraping knife 16 expand (or ejection) and form scraping external diameter, scraping can be carried out, by increasing the pressure built the pressure in chamber and hydraulic cylinder, increase the intubating length of supporting spring 15, thus increase the scraping external diameter of type scraping knife, just the scraping of keypoint part can be carried out, improve scraping ability.
Wherein, because type scraping knife 16 is be affixed on outside cutter cylinder in original state, enter in process under drifting scraping integrated tool, type scraping knife 16 does not have scraping action, drifting joint 2 plays the effect of drift size gauge tool, after transferring to doctor locations, then build the pressure, type scraping knife 16 is expanded and carries out scraping.
In a specific embodiment, hydraulic cylinder 131 is enclosed by fluid cylinder inner sleeve 12 and the fluid cylinder overcoat 13 be positioned at outside fluid cylinder inner sleeve 12 and is formed, fluid cylinder overcoat 13 can be located at outside cutter cylinder 11 by sealing shroud slidably, one end of supporting spring 15 is connected with fluid cylinder overcoat 13, fluid cylinder inner sleeve 12 sealing shroud is connected on outside cutter cylinder 11, and hydraulic cylinder 131 is connected by the inlet opening 19 being located at cutter cylinder sidewall with the chamber 111 that builds the pressure; By controlling the pressure built the pressure in chamber 111 and hydraulic cylinder 131, fluid cylinder overcoat 13 can be driven to promote supporting spring 15 and advance to the direction near type scraping knife 16, supporting spring 15 makes type scraping knife 16 expansion have scraping external diameter, just can carry out scraping.By changing the pressure built the pressure in chamber 111 and hydraulic cylinder 131, the travel distance of supporting spring 15 can be changed, thus just can change the scraping external diameter of type scraping knife 16.
As shown in Figure 1, specifically, fluid cylinder overcoat 13 has the integrated first paragraph 133 that is connected and second segment 134, first paragraph 133 sealing shroud is located at outside cutter cylinder 11, second segment 134 sealing shroud is located at outside fluid cylinder inner sleeve 12, to ensure the sealing of hydraulic cylinder 131, specifically, the storage tank of annular is formed between the lateral wall of second segment 134 and cutter cylinder 11, the internal diameter of second segment 134 is greater than the external diameter of cutter cylinder 11, space between second segment 134 and cutter cylinder 11 is storage tank, fluid cylinder inner sleeve 12 is sheathed in storage tank, and seal with second segment 134 and fit, to ensure the sealing of hydraulic cylinder 131, first paragraph 133, second segment 134 and fluid cylinder inner sleeve 12 enclose and form hydraulic cylinder 131.
As shown in Figure 2, wherein, under the state increasing to the first pressure in hydraulic cylinder 131, fluid cylinder overcoat 13 drives supporting spring 15 to march to primary importance, supporting spring 15 makes type scraping knife 16 be expanded to have the first scraping external diameter (full pit shaft scraping state), now can carry out scraping; By under the state of the first pressure increase to the second pressure in hydraulic cylinder 131, fluid cylinder overcoat 13 drives supporting spring 15 to be continued to march to the second place by primary importance, supporting spring 15 makes type scraping knife 16 be expanded to have the second scraping external diameter, distance between primary importance and fluid cylinder inner sleeve 12, be less than the distance between the second place and fluid cylinder inner sleeve 12, second scraping external diameter is greater than the first scraping external diameter, when type scraping knife 16 has the second larger scraping external diameter, scraping can be carried out to emphasis doctor locations.
In a specific embodiment, lock ring 18 is provided with between fluid cylinder overcoat 13 and supporting spring 15, lock ring 18 is sheathed on outside cutter cylinder 11, lock ring 18 can slide with fluid cylinder overcoat 13 and supporting spring 15, cutter cylinder 11 lateral wall is arranged with locking slot (not shown), the shape of locking slot and lock ring 18 are matched, under the state that lock ring 18 is clamped in locking slot, supporting spring 15 is positioned at primary importance, namely fluid cylinder overcoat 13 promotes lock ring 18 and supporting spring 15 and marches to lock ring 18 when clamping locking slot, position residing for supporting spring 15 is primary importance, now type scraping knife 16 is expanded to and has the first scraping external diameter.For the particular location of locking slot, can arrange according to the size of the first required scraping external diameter.
As shown in Figure 1, wherein, lock ring 18 is clamped and fastened between fluid cylinder overcoat 13 and a back-up ring 14, back-up ring 14 is located between supporting spring 15 and fluid cylinder overcoat 13, one end of back-up ring 14 is set in outside cutter cylinder 11, and be connected with fluid cylinder overcoat 13, such as be threaded connection, the other end of back-up ring 14 radially-inwardly protrudes out formation annular protrusion along cutter cylinder 11, lock ring 18 is clamped and fastened between annular protrusion and fluid cylinder overcoat 13, one end of supporting spring 15 is connected to outside back-up ring 14, such as be threaded connection, namely supporting spring 15 is connected with fluid cylinder overcoat 13 by back-up ring 14.
In another specific embodiment, the sidewall of drifting joint 2 is provided with the well-flushing passage 21 for well-flushing, and packer assembly can be connected by the shear pin 22 be connected in well-flushing passage 21 discretely with drifting joint 2, pressure in hydraulic cylinder 131 be the first pressure and the second pressure time, packer assembly is connected with the inwall of drifting joint 2, in hydraulic cylinder 131 by the second pressure increase under the state of the 3rd pressure, packer assembly cuts off shear pin 22 under the driving of the pressure in chamber 111 of building the pressure, and depart from drifting joint 2 and fall into down-hole, build the pressure chamber 111 and hydraulic cylinder 131 pressure release, fluid cylinder overcoat 13 drives lock ring 18 to be retracted into clamping locking slot, drive supporting spring 15 to be retracted into primary importance simultaneously, type scraping knife 16 is decreased to the first scraping external diameter by the second scraping external diameter, scraping can be proceeded, simultaneously, the intracavity inter-connection of well-flushing passage 21 and cutter cylinder 11, well-flushing passage 21 is opened, clean-out service can be carried out, thus complete scraping, drifting, well-flushing whole set process flow process.
In a feasible technical scheme, type scraping knife 16 is multiple, and be intervally arranged along the circumference of cutter cylinder 11, the outer wall of type scraping knife has blade, energy scraping internal surface of sleeve pipe, between the free end of type scraping knife 16 and the lateral wall of cutter cylinder 11, there is opening 161, so that supporting spring 15 inserts, namely type scraping knife 16 is in wedge shape, the inwall of type scraping knife 16 is inclined plane, and inclined plane is from free end to fixed end to tilting near the direction of cutter cylinder 11 lateral wall gradually, distance in other words between the inwall of type scraping knife 16 and the lateral wall of cutter cylinder 11, reduce gradually to its fixed end from the free end of type scraping knife 16, the inwall of type scraping knife 16 is similar to conical inboard wall.
In addition, supporting spring 15 is multiple, and one_to_one corresponding type scraping knife 16 is intervally arranged along the circumference of cutter cylinder 11, one end of supporting spring 15 is the link of connecting fluid cylinder pressure 131 (namely connecting fluid cylinder overcoat 13), the other end of supporting spring 15 is the insertion end for inserting between the inclined plane of type scraping knife 16 and the lateral wall of cutter cylinder 11, supporting spring 15 is in skewed, and tilt to the direction away from cutter cylinder lateral wall to link from insertion end, the similar conical outer wall of the outer wall of supporting spring 15 in other words, match with the inwall of type scraping knife 16, with can stretching in the process in type scraping knife 16, outside expanded support type scraping knife makes its scraping external diameter increase gradually.
Specifically, supporting spring 15 body in the form of sheets, the lateral wall of its insertion end laminating cutter cylinder 11, its link is connected with fluid cylinder overcoat 13, part between its insertion end and link is skewed, and and between the lateral wall of cutter cylinder 11, form leg-of-mutton elastic deformation space 151, therefore supporting spring 15 can provide soft support for type scraping knife 16, forms elasticity scraping.
In addition, the lateral wall of cutter cylinder 11 is provided with multiple scraper reed 17, the fixed end of type scraping knife 16 realizes the connection with cutter cylinder 11 by scraping reed 17, scraper reed 17 is intervally arranged and one_to_one corresponding type scraping knife 16 along the circumference of cutter cylinder 11, one end and the cutter cylinder 11 of scraper reed 17 fix, such as be fixed on the sidewall of cutter cylinder 11 by scraper reed staple along the radial direction of cutter cylinder, the other end of scraper reed 17 convexes to form protuberance, and the fixed end correspondence of each type scraping knife 16 is connected with the protuberance of each scraper reed 17.
Specifically, scraper reed 17 body in the form of sheets, its one end posts and fixes the lateral wall in cutter cylinder 11, its other end arches upward formation protuberance, there is between the lateral wall of its protuberance and cutter cylinder 11 interval 171, this interval 171 adds the elasticity of scraper reed 17, also type scraping knife 16 is made can fully to launch to form larger scraping radius, the fixed end of type scraping knife 16 is such as axially fixed at protuberance by scraper staple along cutter cylinder, when type scraping knife 16 is expanded, this protuberance can tilt with type scraping knife 16, and scraper reed 17 can provide soft support for type scraping knife 16, forms elasticity scraping.
As shown in Figure 3, in a preferred technical scheme, packer assembly comprises sliding sleeve 23 and steel ball 24, sliding sleeve 23 is connected by shear pin 22 with the inwall of drifting joint 2, and engage with the inner wall sealing of drifting joint 2, be such as provided with O type rubber seal between sliding sleeve and drifting joint, to ensure sealing, steel ball 24 sealing fits in the port of sliding sleeve 23 near scraping section 1 one end, with the sealing in the chamber 111 that ensures to build the pressure.After drifting scraping integrated tool is lowered into doctor locations, then drop into steel ball 24, make steel ball 24 be seated on sliding sleeve 23, the cutter tube inner chamber above steel ball 24 just forms the chamber that builds the pressure,
In the embodiment as shown in fig .4, drifting scraping integrated tool is provided with two scraping sections 1, two scraping section 1 symmetries are connected to the two ends of box cupling 3, the concrete structure of two scraping sections 1 is all identical, and identical parts are all symmetrical arranged centered by box cupling 3, and two the scraping sections 1 connected successively and drifting joint 2 form the pipe integrated instrument of syllogic dredging, scraping, by arranging two scraping sections 1, the area coverage of type scraping knife 16 can be increased, improve scraping efficiency, ensure complete scraping.
Drifting scraping integrated tool of the present utility model, efficiently solve and repeatedly play lower tubular column and expend man-hour, cause the problems such as down-hole string wearing and tearing, can be implemented in while carrying out drifting technique, scraping is carried out to tubing string, one time running string can complete drifting, for flow charts such as mud, sleeve pipe scraping, well-flushings, reduce lower tubular column number of times, strengthening scraping can be carried out for emphasis doctor locations simultaneously, improve operation quality and workover treatment efficiency, reduce the labour intensity of workover rig service to oil well cost and workman.In addition, because the utility model is provided with drifting joint as drifting mechanism, also can use as drift size gauge tool separately.
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, the 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.And it should be noted that, each ingredient of the present utility model is not limited in above-mentioned overall applicability, the each technical characteristic described in manual of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model covers other relevant with this case inventive point in the nature of things and combines and embody rule.

Claims (10)

1. a drifting scraping integrated tool, is characterized in that, described drifting scraping integrated tool comprises:
Drifting joint, in a tubular form, is provided with packer assembly in the inner chamber of described drifting joint;
Scraping section, comprising:
Cutter cylinder, in a tubular form, is connected with described drifting joint, the inner chamber of described cutter cylinder and the intracavity inter-connection of described drifting joint, and the inner chamber of described cutter cylinder forms by described packer assembly the chamber that builds the pressure;
Type scraping knife, is located at the lateral wall of described cutter cylinder, and one end of described type scraping knife is the fixed end connecting described cutter cylinder lateral wall, and the other end is free end;
Hydraulic cylinder, is located at the lateral wall of described cutter cylinder, and is connected with the described chamber that builds the pressure;
Supporting spring, be located at the lateral wall of described cutter cylinder, and between described type scraping knife and described hydraulic cylinder, one end of described supporting spring is connected with described hydraulic cylinder, by the pressure in the chamber that builds the pressure described in controlling, make supporting spring described in described Driven by Hydraulic Cylinder insert between described type scraping knife and described cutter cylinder by described free end, described supporting spring makes described type scraping knife expand and forms scraping external diameter.
2. drifting scraping integrated tool as claimed in claim 1, it is characterized in that, described hydraulic cylinder is enclosed by fluid cylinder inner sleeve and the fluid cylinder overcoat be positioned at outside described fluid cylinder inner sleeve and is formed, described fluid cylinder overcoat can be located at outside described cutter cylinder by sealing shroud slidably, one end of described supporting spring is connected with described fluid cylinder overcoat, described fluid cylinder inner sleeve sealing shroud is connected on outside described cutter cylinder, and described hydraulic cylinder is connected by the inlet opening being located at described cutter cylinder sidewall with the described chamber that builds the pressure;
Under the state increasing to the first pressure in described hydraulic cylinder, described fluid cylinder overcoat drives described supporting spring to march to primary importance, and described type scraping knife is expanded to has the first scraping external diameter;
By under the state of described first pressure increase to the second pressure in described hydraulic cylinder, described fluid cylinder overcoat drives described supporting spring to march to the second place, described type scraping knife is expanded to has the second scraping external diameter, distance between described primary importance and described fluid cylinder inner sleeve, be less than the distance between the described second place and described fluid cylinder inner sleeve, described second scraping external diameter is greater than described first scraping external diameter.
3. drifting scraping integrated tool as claimed in claim 2, it is characterized in that, lock ring is provided with between described fluid cylinder overcoat and described supporting spring, described lock ring is sheathed on outside described cutter cylinder, described lock ring can slide with described fluid cylinder overcoat and described supporting spring, described cutter cylinder lateral wall is arranged with locking slot, and under the state that described lock ring is clamped in described locking slot, described supporting spring is positioned at described primary importance.
4. drifting scraping integrated tool as claimed in claim 2, it is characterized in that, the sidewall of described drifting joint is provided with the well-flushing passage for well-flushing, and described packer assembly can be connected by the shear pin be connected in described well-flushing passage discretely with described drifting joint;
In described hydraulic cylinder by described second pressure increase under the state of the 3rd pressure, described packer assembly cuts off described shear pin under the driving of the described cavity pressure that builds the pressure, and depart from described drifting joint, described chamber and the described hydraulic cylinder pressure relief of building the pressure, described fluid cylinder overcoat drives described supporting spring to return described primary importance, described type scraping knife is decreased to described first scraping external diameter by described second scraping external diameter, the intracavity inter-connection of described well-flushing passage and described cutter cylinder.
5. the drifting scraping integrated tool as described in any one of Claims 1-4, it is characterized in that, described type scraping knife is multiple, and be intervally arranged along the circumference of described cutter cylinder, between the free end of described type scraping knife and the lateral wall of described cutter cylinder, there is opening, the inwall of described type scraping knife is inclined plane, and described inclined plane from described free end to described fixed end to tilting near the direction of described cutter cylinder lateral wall gradually.
6. drifting scraping integrated tool as claimed in claim 5, it is characterized in that, described supporting spring is multiple, and corresponding described type scraping knife is intervally arranged along the circumference of described cutter cylinder, one end of described supporting spring is the link connecting described hydraulic cylinder, the other end of described supporting spring is the insertion end for inserting between described inclined plane and the lateral wall of described cutter cylinder, described supporting spring is skewed, and tilts to the direction away from described cutter cylinder lateral wall from described insertion end to described link.
7. drifting scraping integrated tool as claimed in claim 5, it is characterized in that, the lateral wall of described cutter cylinder is provided with multiple scraper reed, the corresponding described type scraping knife of described scraper reed is intervally arranged along the circumference of described cutter cylinder, one end and the described cutter cylinder of described scraper reed fix, the other end of described scraper reed convexes to form protuberance, and the fixed end correspondence of each described type scraping knife is connected with the protuberance of each described scraper reed.
8. the drifting scraping integrated tool as described in any one of claim 2 to 4, it is characterized in that, described fluid cylinder overcoat has the integrated first paragraph that is connected and second segment, described first paragraph sealing shroud is located at outside described cutter cylinder, described second segment sealing shroud is located at outside described fluid cylinder inner sleeve, and described first paragraph, described second segment and described fluid cylinder inner sleeve enclose and form described hydraulic cylinder.
9. drifting scraping integrated tool as claimed in claim 4, it is characterized in that, described packer assembly comprises sliding sleeve and steel ball, described sliding sleeve is connected by described shear pin with the inwall of described drifting joint, and engage with the inner wall sealing of described drifting joint, described steel ball sealing fits in the port of described sliding sleeve near described scraping section one end.
10. the drifting scraping integrated tool as described in any one of Claims 1-4, it is characterized in that, described drifting scraping integrated tool is provided with two described scraping sections, described in two, scraping section symmetry is connected to the two ends of box cupling, and scraping section described in connect successively two and described drifting joint form the pipe integrated instrument of syllogic dredging, scraping.
CN201520115370.XU 2015-02-25 2015-02-25 Drifting scraping integrated tool Withdrawn - After Issue CN204532267U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104653154A (en) * 2015-02-25 2015-05-27 中国石油天然气股份有限公司 Drifting and scraping integrated tool
CN110552648A (en) * 2018-05-31 2019-12-10 中国石油化工股份有限公司 throw-in type drill rod drift diameter gauge and use method thereof
CN111056214A (en) * 2017-07-10 2020-04-24 李红艳 High-efficient expansion booster
CN112593897A (en) * 2021-01-14 2021-04-02 长江大学 Controllable reducing pipe scraper

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104653154A (en) * 2015-02-25 2015-05-27 中国石油天然气股份有限公司 Drifting and scraping integrated tool
CN104653154B (en) * 2015-02-25 2017-06-13 中国石油天然气股份有限公司 Drifting scraping integrated tool
CN111056214A (en) * 2017-07-10 2020-04-24 李红艳 High-efficient expansion booster
CN111056213A (en) * 2017-07-10 2020-04-24 李红艳 Working method of expansion booster
CN111056213B (en) * 2017-07-10 2021-03-05 台州来智科技有限公司 Working method of expansion booster
CN111056214B (en) * 2017-07-10 2021-03-09 台州来智科技有限公司 High-efficient expansion booster
CN110552648A (en) * 2018-05-31 2019-12-10 中国石油化工股份有限公司 throw-in type drill rod drift diameter gauge and use method thereof
CN110552648B (en) * 2018-05-31 2022-05-03 中国石油化工股份有限公司 Throw-in type drill rod drift diameter gauge and use method thereof
CN112593897A (en) * 2021-01-14 2021-04-02 长江大学 Controllable reducing pipe scraper
CN112593897B (en) * 2021-01-14 2022-12-09 长江大学 Controllable reducing scraper

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