CN201695991U - Oil field well cementation tool with drilling-free capacity - Google Patents
Oil field well cementation tool with drilling-free capacity Download PDFInfo
- Publication number
- CN201695991U CN201695991U CN2010202490657U CN201020249065U CN201695991U CN 201695991 U CN201695991 U CN 201695991U CN 2010202490657 U CN2010202490657 U CN 2010202490657U CN 201020249065 U CN201020249065 U CN 201020249065U CN 201695991 U CN201695991 U CN 201695991U
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- blind plate
- drilling
- well cementation
- oil field
- free capacity
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Abstract
The utility model relates to the field of oil field well cementation, and relates to an oil field well cementation tool with drilling-free capacity in particular which includes a guide shoe, a sieve tube, a blind plate component, an external packer, a grading hoop, and a bushing string; the blind plate component consists of an upper joint, a lower joint and a blind plate; the blind plate is arranged between the upper joint and the lower joint; the oil field well cementation tool with drilling-free capacity is characterized in that the thickness of the blind plate is selected to be between 1 and 3mm; the blind plate is a manganese-aluminum disk plate; and a blind line is arranged on the blind plate. The utility model provides an oil field well cementation tool with drilling-free capacity which can improve the well cementation aging, and save a plurality of drilling costs.
Description
Technical field
The utility model relates to a kind of reinforcing oil well field, particularly has the reinforcing oil well instrument of exempting from the ability of boring.
Background technology
Along with the compression day by day of drilling cost, the most important thing of field operations all is used as drilling well speed-raising work in each oil field.Well cementation work is as the important ring in the drilling engineering, and can well cementation realize raising speed and be related to the success or failure of drilling well speed-raising work.At present, serious restriction well cementation timeliness important has 2 points, and the low-density high-strength cement slurry cementing is adopted in the long sealing well cementation of one horizontal well, and not only cost height but also curing time are long, if adopt conventional sizing collar well cementation then to need bradawl brill sizing collar down, expend the plenty of time; Its two horizontal wells screen casing well cementation blind plate down is the above ironcasting of 10mm, needs bradawl down, expends time in.
Summary of the invention
The purpose of this utility model provides a kind of reinforcing oil well instrument of exempting from the ability of boring that has that improves the well cementation timeliness, saves a large amount of drilling costs.
The object of the present invention is achieved like this, has the reinforcing oil well instrument of exempting from the ability of boring, it comprises guide shoe, screen casing, blind plate assembly, external packer of pipe, sizing collar, bunch tube, the blind plate assembly is made up of top connection, lower contact and blind plate, blind plate is characterized in that between top connection and lower contact: blind plate thickness is chosen between the 1-3mm.
Described blind plate is the aluflex plectane.
Blind line is arranged on the described blind plate.
The utility model has the advantages that: owing between top connection and lower contact, add blind plate, blind plate thickness aluflex between 1～3mm, in the pipe string, lead to like this and press, pressure greater than 18Mpa after, the aluflex blind plate will be suppressed logical, this has not only shortened well construction period, and can reduce pollution to oil reservoir, help Oilfield developing, reduced labor strength, its economic benefit and social benefit are very remarkable; Press the drill sleeve annex with calculating: drilling team's drill sleeve annex calculated by average 3 days; 3 days * 4.5 ten thousand/sky=13.5 ten thousand yuan; Lease bradawl tool expense: 100,000 yuan; Add up to reduce expenses ten thousand yuan of 13.5+10=23.5 of a mouthful well.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment accompanying drawing:
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is blind plate assembly 3 enlarged drawings of Fig. 1.
Among the figure:1, guide shoe; 2 screen casings; 3, blind plate assembly; 4, external packer of pipe; 5, sizing collar; 6, blind plate; 7, bunch tube;
8,Top connection; 9, lower contact.
The specific embodiment
As shown in Figure 1, managing string structure substantially is: guide shoe 1, screen casing 2, blind plate assembly 3, external packer of pipe 4, sizing collar 5, bunch tube 7.
As shown in Figure 2, blind plate assembly 3 is made up of top connection 8, lower contact 9 and blind plate 6, and blind plate 6 is between top connection 8 and lower contact 9, and blind plate 6 thickness are chosen between the 1-3mm, and blind plate 6 is aluflex plectanes.Blind plate 6 is fixed on top connection 8 and lower contact 9 sealings is separated, top connection 8 and lower contact 9 are packed in the bunch tube 7, and with bunch tube 7 down to the shaft bottom, behind the normal construction, transmit pressure by the top tubing string, after pressure reaches setting value, suppress logical blind plate 6, suppress logical pressure 18
-25MPa, the aluflex of blind plate 6 thickness between 1-3mm, aluflex blind plate 6 broken and fall into the shaft bottom after, keep the latus rectum at blind plate 6 places between top connection 8 and the lower contact 9 and to external seal.
In order to make the pressure that can bear before blind plate 6 normal constructions between 18MPa ~ 25Mpa, blind plate 6 increases blind line, can make its technology better.
The utility model is mainly used in the horizontal well, must fit tube external packer 4 on the bunch tube 7, broken after reaching setup pressure value in order to make blind plate 6 thin slices, thus must accomplish on the The field following some.
Cooperate corresponding external packer of pipe 4 on the bunch tube 7, exempt to bore blind plate and be positioned under the external packer of pipe 4.Preceding two sleeve pipes must in time be filled mud after blind plate was gone into well, and later every following 20 sleeve pipes (200 meters) must in time be irritated a mud, prevent inside and outside differential pressure excessive loss blind plate.To control lowering velocity in the going down process and prevent that the exciting blind plate of down-hole pressure from opening in advance.
Claims (3)
1. has the reinforcing oil well instrument of exempting from the ability of boring, it comprises: guide shoe, screen casing, blind plate assembly, external packer of pipe, sizing collar, bunch tube, the blind plate assembly is made up of top connection, lower contact and blind plate, blind plate is characterized in that between top connection and lower contact: blind plate thickness is chosen between the 1-3mm.
2. according to claim 1 have a reinforcing oil well instrument of exempting from the ability of boring, and it is characterized in that: described blind plate is the aluflex plectane.
3. according to claim 1 have a reinforcing oil well instrument of exempting from the ability of boring, and it is characterized in that: blind line is arranged on the described blind plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202490657U CN201695991U (en) | 2010-07-06 | 2010-07-06 | Oil field well cementation tool with drilling-free capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202490657U CN201695991U (en) | 2010-07-06 | 2010-07-06 | Oil field well cementation tool with drilling-free capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201695991U true CN201695991U (en) | 2011-01-05 |
Family
ID=43397231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202490657U Expired - Fee Related CN201695991U (en) | 2010-07-06 | 2010-07-06 | Oil field well cementation tool with drilling-free capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201695991U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989725A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Exempt from brill formula blind plate and exempts to bore plug well shaft fixing technology |
| CN110552657A (en) * | 2019-08-19 | 2019-12-10 | 大庆油田有限责任公司 | Well drilling is with soluble blind plate of trigger formula |
-
2010
- 2010-07-06 CN CN2010202490657U patent/CN201695991U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989725A (en) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | Exempt from brill formula blind plate and exempts to bore plug well shaft fixing technology |
| CN110552657A (en) * | 2019-08-19 | 2019-12-10 | 大庆油田有限责任公司 | Well drilling is with soluble blind plate of trigger formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20180706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |