CN203347749U - Composite tube scraper - Google Patents
Composite tube scraper Download PDFInfo
- Publication number
- CN203347749U CN203347749U CN 201320422870 CN201320422870U CN203347749U CN 203347749 U CN203347749 U CN 203347749U CN 201320422870 CN201320422870 CN 201320422870 CN 201320422870 U CN201320422870 U CN 201320422870U CN 203347749 U CN203347749 U CN 203347749U
- Authority
- CN
- China
- Prior art keywords
- scraper
- center tube
- ball seat
- center
- pipeline scraper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a composite tube scraper, which comprises a symmetrical structure, an upper joint and a lower joint, wherein the symmetrical structure comprises an upper center pipe, a lower center pipe, two sets of scrapers and a piston structure, the two center pipes are connected through the two sets of scrapers, the piston structure drives the scrapers, the upper and the lower center pipes are connected through a center joint, and are communicated, the center joints are symmetrically arranged along the center, the upper center pipe is connected with an upper scraper, a gap is arranged between the upper center pipe and the upper scraper, a leaf spring support is arranged in the gap, and the upper scraper squeeze a leaf spring. The composite tube scraper has the function of a common tube scraper, further can cycle, also can be used in an open hole section and can be lightly rotated, can save nearly 36 hours in a well completion process, improves time efficiency, and can save 200,000 cost for one time.
Description
Technical field
The utility model relates to a kind of compound pipeline scraper, belongs to field of mechanical technique.
Background technology
After existing pipeline scraper enters well, after can removing the internal surface of sleeve pipe attachment, but can not circulate, can not enter bore hole and can not rotate.Take ground out of as removed attachment to pipeline scraper, need to trip out well head to former pipeline scraper, separately next time bored pipeline scraper removed to attachment, utilizes mud to take ground out of.Utilize existing pipeline scraper completion, need first pipe cleaning, rear well-flushing, then simulate drifting, need three brills just can complete, the time-consuming cost that takes.
The utility model content
The utility model provides a kind of compound pipeline scraper, and this pipeline scraper, except common pipeline scraper function is arranged, can also circulate, also can be lowered to barefoot interval and gently turn, in Completion Operations, can save the time of nearly 36 hours, improve timeliness, can be once cost-saving 200,000.
For solving above technical problem, the utility model provides following technical scheme: a kind of compound pipeline scraper comprises symmetrical structure and top connection and lower contact; Upper and lower two central tubes of described symmetrical structure, the two cover scrapers that connect two central tubes, the piston structure of driving scraper; Described upper and lower two central tubes connect by center sub, and two central tubes are communicated with; With center sub, be centrosymmetric; Upper center tube connects upper blade, between upper center tube and upper blade, has space, in space, has the sheet spring to support, upper blade extruding plate spring; The both sides of upper blade connect the upper piston structure, and described upper piston structure comprises two upper pistons and two upper piston covers, and upper piston is arranged between upper center tube and upper piston cover, for being slidably connected, the end of two upper pistons has inclined-plane, and inclined-plane is towards the sheet spring, and inclined-plane is communicated with upper center tube; The upper piston cover is positioned central tube by pin; The end of described two upper pistons has domatic, and the upper blade both sides also have domatic, and two domatic extruding connect; Described pipeline scraper also includes top connection and lower contact; The inner baffle plate that connects of described lower contact, the inboard of baffle plate has ball seat, and ball seat is connected in lower center tube by the ball seat cover; Described top connection is connected in the top of upper center tube.
Further, two upper pistons and two lower pistons all have pin hole, by pin, are connected in upper lower center tube.
Further, the internal face of described ball seat has slope, and ball seat adopts pin to be connected with the ball seat cover.
Further, described upper piston cover is connected in upper center tube by the internal and external threads joint.
This compound pipeline scraper that the utility model relates to, machine construction principle: scraper is contained in the center axial trough of pipeline scraper, in groove, the diameter of the effect lower coating blade of sheet spring can dwindle or support greatly, after in entering the sleeve pipe less than scraper diameter, when scraper moves up and down, just can scrape the attachment of internal surface of sleeve pipe and cement sheath in well, through pitching, scraper is being shunk, again the pipeline scraper tubing string is lowered in the bore hole well, utilize slush pump that the attachment scraped in well is taken out of to well with mud, realized pipe cleaning, well-flushing and simulation drifting operation complete with one-trip string.If use original pipeline scraper, first pipe cleaning, rear well-flushing, then simulate drifting and just can complete with three brills, and only with a brill, just complete with compound pipeline scraper.Both can remove the internal surface of sleeve pipe attachment, can also take well out of removing the internal surface of sleeve pipe attachment by circulating mud, also can be lowered to barefoot interval.Need the work repeatedly pulled out of hole in prior art, utilize once lower having bored of this pipeline scraper.
The accompanying drawing explanation
Fig. 1 is a kind of compound pipeline scraper structure chart of the utility model;
Fig. 2 is a kind of compound pipeline scraper ball seat enlarged drawing of the utility model;
A kind of compound pipeline scraper upper center tube johning knot composition of Fig. 3 the utility model.
The specific embodiment
As shown in Figure 1-Figure 3, compound pipeline scraper, integral body is comprised of top connection 1, upper piston 2, upper piston cover 3, upper blade 4, central tube 5, lower coating blade 6, lower piston cover 7, lower piston 8, ball seat cover 9, lower contact 10, web plate 11, ball seat 12, pin 13, anti-tripping screw 14, lower fluid cylinder connector 15, pin 16, lock ring 17, sheet spring 18 etc.Wherein, central tube 5 comprises upper center tube and lower center tube, between two central tubes, by center sub, connects.
Each parts installation process is as follows: upper blade 4, sheet spring 8 are packed on central tube 5, and upper piston 2, upper piston cover 3, lock ring 17 are assembled to top connection 1, will assemble top connection 1 assembly and be connected to central tube 5 upper ends, adjust upper piston cover 3 pin 16 is loaded onto; Sheet spring 8, lower coating blade 6 are packed on central tube 5, and lower piston 8, lower piston cover 7, lock ring 17 are packed on lower fluid cylinder connector 15, will assemble lower fluid cylinder connector 15 assemblies and be connected to 5. lower end of central tube, adjust lower piston and overlap 7 first-class pins 16; Again ball seat 12, pin 13 are packed into the lower end of lower fluid cylinder connector assembly, connect ball seat cover 9, web plate 11 and lower contact 10 is connected to cover for seat 9 lower ends of receiving, first-class anti-tripping screw 14, whole compound pipeline scraper installation.
After this pipeline scraper enters corresponding sleeve pipe, scraper is compressed and under the effect of sheet spring 18, and corresponding internal surface of sleeve pipe is scraped to bits (the same with pipeline scraper commonly used); After scraping wall, from the oil pipe pitching, after steel ball arrives pipeline scraper ball seat 12, progressively suppress shop bolt on piston 16 is cut off, the compression of pipeline scraper scraper is entered to fluid cylinder, while continuing to suppress a certain setting value, ball seat 12 is struck off, and ball seat 12 and steel ball all fall on ball seat cover 9 and web plate 11; Then continue lower tubular column to shaft bottom, carry out circulation well cleanup, lower completion practice tubing string pulls out of hole after well-flushing.
This pipeline scraper mainly before formation testing acid fracturing and lower down-hole instrument packer, can play a role in down-hole when the completion practice in order to make instrument, well head must be removed and taken out of to internal surface of sleeve pipe bur and cement sheath.After drilling engineering finishes, before being lowered to downhole tool, this pipeline scraper is connected on drilling rod, be lowered into correspondingly in sleeve pipe to moving up and down, utilize this pipeline scraper scraper elasticity, internal surface of sleeve pipe bur and cement sheath are removed, again by pitching, utilize the piston of this pipeline scraper that scraper is regained, then continue this pipeline scraper is lowered in the bore hole well, pipeline scraper arrives the projected depth that tubing string is lowered to, carry out the circulation of large discharge capacity, internal surface of sleeve pipe is scraped to attachment and take well out of, make well clean clean, be convenient to downhole tool and effectively play a role.
The specific embodiment described in the utility model does not form the restriction to the application's scope; every within the spirit and principle of the utility model design, any modification that one of skill in the art can make, be equal to and replace and within improvement etc. all should be included in protection domain of the present utility model.
Claims (4)
1. a compound pipeline scraper, is characterized in that, described pipeline scraper comprises symmetrical structure and upper and lower joint; Upper and lower two central tubes of described symmetrical structure, the two cover scrapers that connect two central tubes, the piston structure of driving scraper; Described upper and lower two central tubes connect by center sub, and two central tubes are communicated with; With center sub, be centrosymmetric; Upper center tube connects upper blade, between upper center tube and upper blade, has space, in space, has the sheet spring to support, upper blade extruding plate spring; The both sides of upper blade connect the upper piston structure, and described upper piston structure comprises two upper pistons and two upper piston covers, and upper piston is arranged between upper center tube and upper piston cover, for being slidably connected, the end of two upper pistons has inclined-plane, and inclined-plane is towards the sheet spring, and inclined-plane is communicated with upper center tube; The upper piston cover is positioned central tube by pin; The end of described two upper pistons has domatic, and the upper blade both sides also have domatic, and two domatic extruding connect; Described pipeline scraper also includes top connection and lower contact; The inner baffle plate that connects of described lower contact, the inboard of baffle plate has ball seat, and ball seat is connected in lower center tube by the ball seat cover; Described top connection is connected in the top of upper center tube.
2. a kind of compound pipeline scraper according to claim 1, is characterized in that, two upper pistons and two lower pistons all have pin hole, by pin, are connected in upper lower center tube.
3. a kind of compound pipeline scraper according to claim 1, is characterized in that, the internal face of described ball seat has slope, and ball seat adopts pin to be connected with the ball seat cover.
4. a kind of compound pipeline scraper according to claim 1, is characterized in that, described upper piston cover is connected in upper center tube by the internal and external threads joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320422870 CN203347749U (en) | 2013-07-17 | 2013-07-17 | Composite tube scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320422870 CN203347749U (en) | 2013-07-17 | 2013-07-17 | Composite tube scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203347749U true CN203347749U (en) | 2013-12-18 |
Family
ID=49747659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320422870 Expired - Fee Related CN203347749U (en) | 2013-07-17 | 2013-07-17 | Composite tube scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203347749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334716A (en) * | 2013-07-17 | 2013-10-02 | 新疆力信油田工程技术有限公司 | Composite tube scraper |
| CN108643863A (en) * | 2018-07-17 | 2018-10-12 | 杨志刚 | A kind of sucker rod self-adapting type pit shaft paraffin removal unit |
| CN112252987A (en) * | 2020-10-22 | 2021-01-22 | 北京探矿工程研究所 | Drilling reamer and operation method thereof |
-
2013
- 2013-07-17 CN CN 201320422870 patent/CN203347749U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334716A (en) * | 2013-07-17 | 2013-10-02 | 新疆力信油田工程技术有限公司 | Composite tube scraper |
| CN103334716B (en) * | 2013-07-17 | 2016-02-17 | 新疆力信油田工程技术有限公司 | A kind of composite tube scraper |
| CN108643863A (en) * | 2018-07-17 | 2018-10-12 | 杨志刚 | A kind of sucker rod self-adapting type pit shaft paraffin removal unit |
| CN108643863B (en) * | 2018-07-17 | 2020-11-17 | 嘉兴市国龙石油化工股份有限公司 | Sucker rod self-adaptation formula pit shaft paraffin removal device |
| CN112252987A (en) * | 2020-10-22 | 2021-01-22 | 北京探矿工程研究所 | Drilling reamer and operation method thereof |
| CN112252987B (en) * | 2020-10-22 | 2022-09-27 | 北京探矿工程研究所 | Drilling reamer and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103334716B (en) | A kind of composite tube scraper | |
| CN205277372U (en) | Well drilling trip -out drilling rod inner wall mud scrapping device | |
| CN203347749U (en) | Composite tube scraper | |
| CN100538003C (en) | The expansion sieve tube hanging method | |
| CN2931775Y (en) | Highly effective pipeline scraper | |
| CN205135400U (en) | Impacter but prospecting borehole recovery type high frequency surges | |
| CN204113225U (en) | Spring sleeve pipe drifting scraper | |
| CN202381036U (en) | Suspension type squeezing bridge plug | |
| CN202338283U (en) | Sleeve skiving device for thickened oil production well | |
| CN202325323U (en) | underground operation tool integrated with sand washing, paraffin scraping, sealing and separating | |
| CN201705260U (en) | Hydraulic jet deplugging device | |
| CN206571659U (en) | A kind of long plunger sand control can just wash energy-conserving and environment-protective oil well pump | |
| CN111577182B (en) | Deep sea hard rock efficient rope coring system and coring drilling method thereof | |
| CN203188929U (en) | Hexagonal outer circle drill stem device quick to connect and for coal mine tunnel drilling | |
| CN201318149Y (en) | Unidirectional inner blowout control pump-out type blanking plug | |
| CN103790529A (en) | Coalbed methane drainage extraction and backwashing device and method | |
| CN201100102Y (en) | Rotary type milling sand-washing pen point | |
| CN202249957U (en) | Coal powder spiral anti-blocking device | |
| CN206693965U (en) | A kind of rotary valve slurry pulsator takes out instrument | |
| CN202391368U (en) | Screen pipe hanger for petroleum drilling | |
| CN103821471A (en) | Method of processing cement sheath outside screen pipe after cementing well completion | |
| CN204532227U (en) | A kind of oil well time delay self-expansion type inserts sealing tool | |
| CN204571935U (en) | Whirling rabbit | |
| CN208280910U (en) | Naked eye sieve tube completion horizontal well is for the outer mud of pipe and acidification integral process tubing string | |
| CN201818261U (en) | Drilling sealed coring lower piston |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170720 Address after: 430040, Hubei, Wuhan, East and West Lake, gold and Silver Lake, Ma Chi Road, South Central School Patentee after: DOWNHOLE TESTING COMPANY OF SINOPEC JIANGHAN OILFIELD SERVICE CO.,LTD. Address before: 830000, 38 South Street, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, Guangzhou Patentee before: XINJIANG LIXIN OILFIELD ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20210717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |