CN2881074Y - Filling tool of pipe external packer - Google Patents
Filling tool of pipe external packer Download PDFInfo
- Publication number
- CN2881074Y CN2881074Y CN 200520136458 CN200520136458U CN2881074Y CN 2881074 Y CN2881074 Y CN 2881074Y CN 200520136458 CN200520136458 CN 200520136458 CN 200520136458 U CN200520136458 U CN 200520136458U CN 2881074 Y CN2881074 Y CN 2881074Y
- Authority
- CN
- China
- Prior art keywords
- central tube
- baffle plate
- cylinder
- central
- tube
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to an external casing packer filling tool. The upper part of a central tube is provided with external steps, with an upper rubber cylinder, an upper baffle plate, a lower baffle plate and a supporting cylinder covered in turns. The upper and lower baffle plates are fixedly connected by threads, the supporting cylinder is fixed on the central tube with a pin bolt, the lower rubber cylinder is covered on the supporting cylinder, a central blind hole is arranged on the lower baffle plate, with off-setting spring provided inside, the lower end leans against the supporting cylinder, the supporting cylinder is connected with the rubber plug base and the lower joints in turn, the lower part of the central tube is connected with an adapter, a spring is equipped between the adapter and the step in the rubber plug base, a hydraulic cylinder is fastened between the upper baffle plate and the central tube by the pin bolt, an off-setting spring is provided between the hydraulic cylinder and the upper baffle plate, the central blind hole on the lower part of the hydraulic cylinder and the central tube form a hydraulic chamber, a liquid flow through hole is equipped on the central tube corresponding to the hydraulic chamber and the corresponding baffle plate is also equipped with a liquid flow through hole. The utility model utilizes the deformation of the rubber cylinder to realize sealing. As the outer diameter of the required rubber cylinder is smaller than the well completion pipe column, when put into water, the sealing components can not be damaged due to the friction produced and the sealing effects can not be influenced.
Description
Technical field
The utility model relates to exploitation of oil-gas field horizontal well drilling completion tool, particularly a kind of external packer of pipe packing tool.
Background technology
The completion mode of horizontal well is mainly cutting seam sieve tube completion, well cementation completion and barefoot completion.From the back oil recovery condition of production of going into operation; the effect that the application level well development can obtain in fractured reservoir; but the horizontal well that adopts the cutting seam sieve tube completion merely occurs through regular meeting causing early stage stopping production of horizontal well to be scrapped thus owing to cross that early leaving but can't be tested, the situation of shutoff.The cementing well completion can satisfy acid fracturing and carry out the requirement that interlayer is separated shutoff gas cut water enchroachment (invasion), but cause the obstruction in crack easily at low pressure leakiness and fractured reservoir, thereby greatly reduce the oil pump capacity of intrinsic fracture oil reservoir, particularly low yield poor efficiency oil field is not suitable for adopting this method.Barefoot completion be only applicable to indivedual conditions better, do not have water enchroachment (invasion), need not acid fracturing, the horizontal well of hole stability.Facts have proved that adopt slot (or punching) screen casing to add the completion mode of multistage external packer of pipe, i.e. the horizontal well completion mode of sectional control is a kind of optimal way of horizontal well completion.In the horizontal well completion of sectional control, after completion tubular column is lowered to, need the filling of realization to the multiple valve external packer.No matter packing tool commonly used at present is leather cup formula or packing element formula, and the outside dimension of its sealing cup or packing element is all suitable substantially with the internal diameter size for the treatment of the filling tubing string, after putting in place under the packing tool, promptly carries out packing job.In actual use, because packing tool is lowered to the friction between process seal and the completion tubular column, it is damaged to make that rubber parts occurs, and influences its sealing performance.
Summary of the invention
For addressing the above problem, the utility model provides a kind of external packer of pipe packing tool.
The utility model is mainly by last box cupling 1, block 2, on, lower rubber cylinder 3,11, on, lower baffle plate 6,9, central tube 4, plug seat 15, following box cupling 17 and sealing ring, compositions such as spring, one outer step is arranged at central tube 4 tops, the step next coming in order are set with packing element 3, on, lower baffle plate 6,9, support tube 12, wherein go up, lower baffle plate 6, adopt screw thread fixedly connected between 9, support tube 12 usefulness pins 10 are fixed on the central tube 4, lower rubber cylinder 11 is sleeved on the support tube 12, lower baffle plate 9 inner chambers have central blind hole, back-moving spring 10 is positioned at this hole, its lower end leans against on the end face of support tube 12, support tube 12 lower ends and plug seat 15, lower contact 17 connects successively, central tube 4 bottoms link to each other with crossover sub 14, between the step spring 16 are housed in crossover sub 14 and the plug seat 15; In the annular space of overhead gage 6 and central tube 4 fluid cylinder 8 is arranged, pin 7 is fixed on fluid cylinder on the overhead gage 6, between fluid cylinder 8 and the overhead gage 6 back-moving spring 5 is housed, the central blind hole of fluid cylinder 8 bottoms and central tube 4 form a hydraulic cavities, central tube 4 corresponding hydraulic cavities positions have a liquid opening, and the liquid opening is also arranged on the relevant position overhead gage 6.
Advantage of the present utility model is: utilize the downforce of tubing string to make the rubber tube distortion realize the annular space packing, and control the opening and closing of pack hole by building the pressure, because the rubber tube external diameter that seals is less than the internal diameter of completion tubular column, rubber tube does not contact with tubing string in the well in the process so be lowered to, and can guarantee that rubber tube goes into the sealing effectiveness of well after in place.
Description of drawings
Fig. 1 the utility model structural representation
The specific embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model is mainly by last box cupling 1, block 2, on, lower rubber cylinder 3,11, on, lower baffle plate 6,9, central tube 4, plug seat 15, following box cupling 17 and sealing ring, compositions such as spring, one outer step is arranged at central tube 4 tops, the step next coming in order are set with packing element 3, on, lower baffle plate 6,9, support tube 12, these parts all can endwisely slip along central tube, wherein go up, lower baffle plate 6, adopt screw thread fixedly connected between 9, support tube 12 usefulness pins 10 are fixed on the central tube 4, lower rubber cylinder 11 is sleeved on the support tube 12, lower baffle plate 9 inner chambers have central blind hole, back-moving spring 10 is positioned at this hole, its lower end leans against on the end face of support tube 12, support tube 12 lower ends and plug seat 15, lower contact 17 connects successively, central tube 4 bottoms link to each other with crossover sub 14, between the step spring 16 are housed in crossover sub 14 and the plug seat 15; In the annular space of overhead gage 6 and central tube 4 fluid cylinder 8 is arranged, pin 7 is fixed on fluid cylinder on the overhead gage 6, between fluid cylinder 8 and the overhead gage 6 back-moving spring 5 is housed, the central blind hole of fluid cylinder 8 bottoms and central tube 4 form a hydraulic cavities, central tube 4 corresponding hydraulic cavities positions have a liquid opening, and the liquid opening is also arranged on the relevant position overhead gage 6.Above-mentioned all can between the parts of relative motion sealing ring be housed all.
Operating principle of the present utility model: with the utility model upper end with send into tubing string and be connected, the lower end links to each other with orientation tool, after the orientation tool realization is located, press down tubing string, under this load, central tube 4 moves down, cut off shear pin 13, upper and lower packing element 3,11 expands successively, realizes the annular space sealing.Build the pressure then, pin 7 is cut off, and fluid cylinder 8 moves up, back-moving spring 5 is compressed, and meanwhile, the liquid opening on the overhead gage 6 exposes, set up fluid course with the liquid opening on the central tube 4, utilize this fluid course that external packer of pipe is carried out packing job then.After packing job finished, under the effect of back-moving spring 5, fluid cylinder 8 resetted, and the liquid opening on the overhead gage 6 is blocked, and closes fluid course.The upper lifting pipe post, packing element returns to original shape owing to lost the effect of time compressive load.
Claims (1)
1. external packer of pipe packing tool, mainly by last box cupling (1), block (2), on, lower rubber cylinder (3,11), on, lower baffle plate (6,9), central tube (4), plug seat (15), following box cupling (17) and sealing ring, spring is formed, it is characterized in that: an outer step is arranged at central tube (4) top, the step next coming in order are set with packing element (3), on, lower baffle plate (6,9), support tube (12), on, lower baffle plate (6,9) adopt screw thread fixedly connected, support tube (12) is fixed on the central tube (4) with pin (10), lower rubber cylinder (11) is sleeved on the support tube (12), lower baffle plate (9) inner chamber has central blind hole, back-moving spring (10) is positioned at this hole, its lower end leans against on the upper surface of support tube (12), support tube (12) lower end and plug seat (15), lower contact (17) connects successively, central tube (4) bottom links to each other with crossover sub (14), between crossover sub (14) and the interior step of plug seat (15) spring (16) is housed; In the annular space of overhead gage (6) and central tube (4) fluid cylinder (8) is arranged, pin (7) is fixed on fluid cylinder (8) on the overhead gage (6), between fluid cylinder (8) and the overhead gage (6) back-moving spring (5) is housed, the central blind hole of fluid cylinder (8) bottom and central tube (4) form a hydraulic cavities, the corresponding hydraulic cavities of central tube (4) position has a liquid opening, and the relevant position overhead gage also has the liquid opening on (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136458 CN2881074Y (en) | 2005-11-29 | 2005-11-29 | Filling tool of pipe external packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136458 CN2881074Y (en) | 2005-11-29 | 2005-11-29 | Filling tool of pipe external packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2881074Y true CN2881074Y (en) | 2007-03-21 |
Family
ID=37880914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520136458 Expired - Lifetime CN2881074Y (en) | 2005-11-29 | 2005-11-29 | Filling tool of pipe external packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2881074Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821479A (en) * | 2014-02-17 | 2014-05-28 | 康庆刚 | Device not pressing oil reservoir during thermal washing of mechanical producing well |
| CN107208470A (en) * | 2015-02-17 | 2017-09-26 | 哈利伯顿能源服务公司 | Grid seal pack device assembly and other downhole tools |
-
2005
- 2005-11-29 CN CN 200520136458 patent/CN2881074Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821479A (en) * | 2014-02-17 | 2014-05-28 | 康庆刚 | Device not pressing oil reservoir during thermal washing of mechanical producing well |
| CN103821479B (en) * | 2014-02-17 | 2016-05-18 | 康庆刚 | The device of force feed layer function not while thering is well hot washing |
| CN107208470A (en) * | 2015-02-17 | 2017-09-26 | 哈利伯顿能源服务公司 | Grid seal pack device assembly and other downhole tools |
| CN107208470B (en) * | 2015-02-17 | 2020-11-13 | 哈利伯顿能源服务公司 | Lattice seal packer assembly and other downhole tools |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102330546B (en) | Open hole staged fracturing well completion pipe string provided with controllable valve and hydraulic control switching pipe string | |
| CN201883994U (en) | Self-pressure-retaining expansion open hole packer | |
| CN201908613U (en) | Opening valve type expansion packer | |
| CN103321604A (en) | Packer with safety valve | |
| CN109372474B (en) | A kind of coal bed gas and sandstone gas are the same as well flow string and recovery method | |
| CN203383772U (en) | Packer with safety valve | |
| CN2851503Y (en) | Hydraulic automatic anti-deflection drilling tools | |
| CN108868732B (en) | Tool of coiled tubing separate-layer fracturing system and separate-layer fracturing method thereof | |
| CN2881074Y (en) | Filling tool of pipe external packer | |
| CN201152160Y (en) | Horizontal well fracturing hydraulic seat packer | |
| CN103742099A (en) | Perforation, fracturing, sealing and separating device | |
| CN2777184Y (en) | External packer filling tool for completion pipe of horizontal well | |
| CN201943639U (en) | Pressure-typed sealing machine for oil well polish rod | |
| CN200946497Y (en) | Downhole oil extraction pipe string for gas drive oil well | |
| CN2773305Y (en) | Hydraulic self sealing hole stopper with position concerned releasement | |
| CN202325457U (en) | Naked eye segmented fracturing completion string for placement of controllable valves and liquid control switch string | |
| CN201546665U (en) | Recyclable bridge plug | |
| CN201460802U (en) | Insertion pipe packer | |
| CN2559780Y (en) | Isolation type unpacking valve control packer | |
| CN2841949Y (en) | Reverse differential pressure anchor packer | |
| CN203476282U (en) | Staged fracturing packer of horizontal well | |
| CN2720104Y (en) | Fully-closed hydraulic packer | |
| CN201206458Y (en) | Controllable switch hole sliding bush assembly | |
| CN202249942U (en) | Oil-water-well casing swabbing tool | |
| CN201581856U (en) | Multilevel compressive extro-pipe packer used for segmented completion of horizontal well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070321 |
|
| EXPY | Termination of patent right or utility model |