CN2677595Y - Lifting hydraulic cartridge container hanger - Google Patents
Lifting hydraulic cartridge container hanger Download PDFInfo
- Publication number
- CN2677595Y CN2677595Y CN 200320104213 CN200320104213U CN2677595Y CN 2677595 Y CN2677595 Y CN 2677595Y CN 200320104213 CN200320104213 CN 200320104213 CN 200320104213 U CN200320104213 U CN 200320104213U CN 2677595 Y CN2677595 Y CN 2677595Y
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- CN
- China
- Prior art keywords
- mandrel
- float
- hand thread
- sealing device
- hanger
- 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
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Abstract
Disclosed is a lifting hydraulic cartridge container hanger, applied to the operation of the oil well cementing in oil drilling engineering. The utility model is characterized in that a sealing device (21) is fixed on a central pipe (14), and the sealing device (21) seals the central pipe (14), seals the annular space of a mandrel (18) and seals the inlet hole (20) on the mandrel (18). The utility model realizes the operating mode of firstly cementing and then suspending a tail pipe for improving oil well cementing quality. The utility model is provided with a float (4) structure, and the float (4) is arranged under a cover disk (3) and is penetrated on the same pipe nipple (2) as the cover disk (3). The annular space below the float (4) and above the sealing device (21) is filled with hydraulic oil. The design of the float provides a reliable guarantee for back-buckling screw thread fit realizing reverse buckling under the lubricating and clean external condition, and other structures and connected relation are the same as the cartridge container hanger with the former technology.
Description
Technical field
The utility model belongs to the petroleum drilling technology field, is applied in the petroleum drilling engineering well cementing operation, is a kind of hanger that hangs minor diameter sleeve pipe (being called tail pipe on the engineering) thousands of meters outer layer sleeve end, down-hole, belongs to a kind of of hydraulic suspension device.
Technical background
On-the-spot employed hydraulic pressure extension hanger all is made up of hanger body and running tool two parts at present, and hanger body and running tool are threaded togather by left-hand thread.Earlier with in the tail pipe lower going-into-well, tail pipe top connects hanger during use, and the hanger that will have a tail pipe by drilling tool is sent into hanging position again.This hanger is gone into the well the back by hydraulic-driven suspension tail pipe, cementing then earlier.
The hanger body is made up of tieback tube, left-hand thread joint, mandrel, cone, slips, slips sheet, fluid cylinder, supporting positive cover, sleeve pipe plug pipe nipple etc.Tieback tube and left-hand thread joint are one, mandrel penetrates from the lower end behind the supporting positive cover and the screwed connection of sleeve pipe plug pipe nipple, be screwed respectively on fluid cylinder after slips and the riveted joint of slips sheet, slips is generally the 3-6 sheet, after the fluid cylinder that will have a slips penetrates mandrel, again cone is penetrated mandrel, mandrel is connected posterior pyramids and is fixed on the mandrel with left-hand tool joint thread, and fluid cylinder can slide on mandrel.Three inlet openings, the hanger hanging position of going into the well is arranged in same cross section on the mandrel, annotate mud from ground and enter fluid cylinder through inlet opening, promote to move on the fluid cylinder, make slips enter the big end of cone, slips is stuck on outer internal surface of sleeve pipe, realizes that extension hanger hangs.
Running tool is made up of top connection, shrouding disc, pipe nipple, centering short segment, bearing, splined shaft, jump ring, spring, left-hand thread swivel nut, sealing shroud, central tube etc.Top connection top has drill rod thread to be connected with the drilling rod of sending into hanger, and the top connection bottom is threaded with splined shaft by pipe nipple, penetrates left-hand thread swivel nut and spring on the splined shaft, and fixes with jump ring.Inner and the splined shaft spline fitted of left-hand thread swivel nut, the outside is threaded with left-hand thread joint sawtooth pattern left-hand thread, and thrust bearing is placed on the interior shoulder of left-hand thread joint.Sealing shroud is in the splined shaft bottom, internal diameter and central tube matched in clearance, the external surface upper end is the major diameter cylinder, the lower end is the minor diameter cylinder, left-hand thread joint and mandrel tighten the back and with end face sealing shroud are fixed on the body, sealing mandrel and base pipe annulus, the passage that blocking-up liquid makes progress, make mud enter fluid cylinder, realize that extension hanger hangs through inlet opening.After the hanger assembling, shrouding disc gets lodged on the tieback tube horn mouth, prevents that the bulky grain dirt from entering hanger inside.
The job order of original extension hanger is to hang tail pipe, cementing well then earlier.Log data after the well cementation proves, adopts this method well cementation, and cement is skewness in the annular space of well and tail pipe, cementing concrete is loose, particularly cements the well in slim-hole and inclined shaft, because annular clearance is too little, even sectional cement tomography appears, cementing quality is poor.
Summary of the invention
The purpose of this utility model provides a kind of first cementing, and the back hangs the extension hanger of tail pipe.After getting into predetermined well depth under the extension hanger, with method cementing in well of conventional cementing, after cementing finishes, on put and put the movable drilling tool of tail pipe, after annular space cement evenly distributes, hang tail pipe again and finish well cementation, thereby improve cementing quality greatly.
The utility model is made up of hanger body and running tool two parts.Hanger body and running tool are threaded togather by left-hand thread, and after well cementation finished, running tool was suggested well head.
The hanger body is made up of tieback tube, left-hand thread joint, mandrel, cone, slips, slips sheet, fluid cylinder, supporting positive cover, sleeve pipe plug pipe nipple etc.Its structure is identical with the extension hanger of original technology with annexation, does not introduce in detail.
Running tool is made up of top connection, pipe nipple, shrouding disc, float, centering short segment, bearing, splined shaft, jump ring, spring, left-hand thread swivel nut, sealing device, central tube etc.It is characterized in that: top connection top has drill rod thread to be connected with the drilling rod of sending into hanger, the top connection bottom is threaded with splined shaft by pipe nipple, penetrate float and shrouding disc on the pipe nipple, rubber seal packoff nipple external diameter is arranged on the internal diameter of float, rubber seal sealing tieback tube internal diameter is arranged on the external diameter of float.Hydraulic oil is filled with in the bottom of float, the upper, annular space of sealing device in hanger assembling back, and float can slide on pipe nipple.Penetrate left-hand thread swivel nut and spring on the splined shaft successively, and fix, penetrate bearing and centering short segment then with jump ring.There is spline left-hand thread swivel nut inside, and with the splined shaft spline fitted, the outside has sawtooth pattern left-hand thread screw thread to be threaded with left-hand thread joint sawtooth pattern left-hand thread, and bearing is placed on the interior shoulder of left-hand thread joint.The splined shaft bottom connects central tube, and sealing device is fixed on the central tube, and sealing device seals the inlet opening on the mandrel in center seal pipe and mandrel annular space.
Adopt the lifting type hydraulic pressure extension hanger of the utility model manufacturing to change sealing shroud in original technology and be fixed on the mode of laying on the body, designed new type sealing device, thereby changed the former hydraulic pressure extension hanger back of going into the well and hung earlier the cemented working method in back.Realized putting the movable drilling tool of tail pipe putting on earlier after the cementing, after annular space cement is evenly distributed, again hanger is put into the shaft bottom, dextrorotation drilling tool 8-12 circle, on carry drilling tool and make on the sealing device and move, open inlet opening, the working method that builds the pressure extension hanger is hung, thus improve cementing quality greatly.The left-hand thread threaded engagement that is designed to of float realizes that back-off provides reliable assurance all the time under the external condition of glossy, cleaning.
Description of drawings
Accompanying drawing is a lifting type hydraulic pressure extension hanger schematic diagram, because appearance and size is long, shows so be divided into two segment tables.Basic configuration, position and the annexation of lifting type extension hanger have been the figure shows.
What represent in the accompanying drawing is top connection (1), short circuit (2), shrouding disc (3), float (4), left-hand thread joint (5), centering short segment (6), bearing (7), jump ring (8), splined shaft (9), spring (10), left-hand thread swivel nut (11), liquid injection hole (12), screw (13), central tube (14), cone (15), slips (16), slips sheet (17), mandrel (18), fluid cylinder (19), inlet opening (20), sealing device (21), supporting positive cover (22), hollow plug pipe nipple (23).
The specific embodiment
In lifting type hydraulic pressure extension hanger body, tieback tube and left-hand thread joint (5) are one.Mandrel (18) penetrates supporting positive cover (22) back and sleeve pipe plug pipe nipple (23) screwed connection from the lower end, slips (16) is screwed respectively on fluid cylinder (19) after riveting with slips sheet (17), slips (16) is generally the 3-6 sheet, after the fluid cylinder (19) that will have slips (16) penetrates mandrel (18), again cone (15) is penetrated mandrel (18), mandrel (18) is threaded with left-hand thread joint (5), cone (15) is fixed on the mandrel (18) by screw (13), and fluid cylinder (19) can be gone up at mandrel (19) and slide.Three inlet openings (20) are arranged on the mandrel (18).These three inlet openings (20) are on same cross section.
In lifting type hydraulic pressure extension hanger running tool, top connection (1) top has drill rod thread to be connected with the drilling rod of sending into hanger, top connection (1) bottom is threaded with splined shaft (9) by pipe nipple (2), penetrate float (4) and shrouding disc (3) on the pipe nipple (2), float (4) can be gone up at pipe nipple (2) and slide.Penetrate left-hand thread swivel nut (11) and spring (10) on the splined shaft (9) successively, and fixing with jump ring (8), penetrate bearing (7) and centering short segment (6) then.There is spline left-hand thread swivel nut (11) inside, and with splined shaft (9) spline fitted, the outside has sawtooth pattern left-hand thread screw thread to be threaded with left-hand thread joint (5) sawtooth pattern left-hand thread, and bearing (7) is placed on the interior shoulder of left-hand thread joint (5).Splined shaft (9) bottom connects central tube (14), and sealing device (21) is connected on the central tube (14), and sealing device (21) seals the inlet opening (20) on the mandrel (18) in center seal pipe (14) and mandrel (18) annular space.
Claims (1)
- A kind of lifting type hydraulic pressure extension hanger is made up of hanger body and running tool two parts, wherein the hanger body is by tieback tube (5), left-hand thread joint (5), mandrel (18), cone (15), slips (16), slips sheet (17), fluid cylinder (19), supporting positive cover (22), sleeve pipe plug pipe nipple compositions such as (23), tieback tube and left-hand thread joint (5) are one, mandrel (18) penetrates supporting positive cover (22) back and sleeve pipe plug pipe nipple (23) screwed connection from the lower end, slips (16) is screwed respectively on fluid cylinder (19) after riveting with slips sheet (17), slips (16) is generally the 3-6 sheet, after the fluid cylinder (19) that will have slips (16) from mandrel (18) upper end penetrates mandrel (18), again cone (15) is penetrated mandrel (18), mandrel (18) upper end is threaded with left-hand thread joint (5), cone (15) is fixed on the mandrel (18) by screw (13), fluid cylinder (19) can be gone up at mandrel (18) and slide, three inlet openings (20) are arranged on the mandrel (18), these three inlet openings (20) are on same cross section, running tool is by top connection (1), pipe nipple (2), shrouding disc (3), float (4), centering short segment (6), bearing (7), splined shaft (9), spring (10), left-hand thread swivel nut (11), sealing device (21), central tube compositions such as (14), top connection (1) top has drill rod thread to be connected with the drilling rod of sending into hanger, top connection (1) bottom is threaded with splined shaft (9) by pipe nipple (2), penetrate float (4) and shrouding disc (3) on the pipe nipple (2), float (4) can be gone up at pipe nipple (2) and slide, penetrate left-hand thread swivel nut (11) and spring (10) on the splined shaft (9) successively, and it is fixing with jump ring (8), penetrate bearing (7) and centering short segment (6) then, there is spline left-hand thread swivel nut (11) inside, with splined shaft (9) spline fitted, the outside has sawtooth pattern left-hand thread screw thread to be threaded with left-hand thread joint (5) sawtooth pattern left-hand thread, bearing (7) is placed on the interior shoulder of left-hand thread joint (5), splined shaft (9) bottom connects central tube (14), sealing device (21) is connected on the central tube (14), sealing device (21) is in center seal pipe (14) and mandrel (18) annular space, inlet opening (20) on the sealing mandrel (18)It is characterized in that: sealing device (21) is fixed on the central tube (14), sealing device (21) is in center seal pipe (14) and mandrel (18) annular space, inlet opening (20) on the sealing mandrel (18), designed float (4) structure, this float (4) is in the below of shrouding disc (3), be through on the same pipe nipple (2) with shrouding disc (3), rubber seal packoff nipple (2) external diameter is arranged on the internal diameter of float (4), rubber seal sealing tieback tube (5) internal diameter is arranged on the external diameter of float (4), hanger assembling back is in the bottom of float (4), hydraulic oil is filled with in the upper, annular space of sealing device (21), float (4) can be gone up at pipe nipple (2) and slide
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104213 CN2677595Y (en) | 2003-12-15 | 2003-12-15 | Lifting hydraulic cartridge container hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104213 CN2677595Y (en) | 2003-12-15 | 2003-12-15 | Lifting hydraulic cartridge container hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2677595Y true CN2677595Y (en) | 2005-02-09 |
Family
ID=34580655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320104213 Expired - Lifetime CN2677595Y (en) | 2003-12-15 | 2003-12-15 | Lifting hydraulic cartridge container hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2677595Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173601B (en) * | 2007-11-29 | 2010-09-01 | 中国石油天然气集团公司 | Rotatable hydraulic expanding type tail pipe hanger |
| CN101187300B (en) * | 2007-11-29 | 2010-09-29 | 中国石油天然气集团公司 | Rotary hydraulic machinery double function expansion type tail pipe hanger |
| CN102444387A (en) * | 2011-12-13 | 2012-05-09 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Tie-back self-lock mechanism for suspended packer |
| CN101392633B (en) * | 2007-09-21 | 2012-07-18 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion sieve tube hanger |
| CN103015930A (en) * | 2012-12-11 | 2013-04-03 | 中国石油集团川庆钻探工程有限公司 | Multistage heavy-load rotary tail pipe hanger |
| CN112696162A (en) * | 2021-03-12 | 2021-04-23 | 东营市福利德石油科技开发有限责任公司 | Downhole double-tube sliding self-sealing tool |
-
2003
- 2003-12-15 CN CN 200320104213 patent/CN2677595Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392633B (en) * | 2007-09-21 | 2012-07-18 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion sieve tube hanger |
| CN101173601B (en) * | 2007-11-29 | 2010-09-01 | 中国石油天然气集团公司 | Rotatable hydraulic expanding type tail pipe hanger |
| CN101187300B (en) * | 2007-11-29 | 2010-09-29 | 中国石油天然气集团公司 | Rotary hydraulic machinery double function expansion type tail pipe hanger |
| CN102444387A (en) * | 2011-12-13 | 2012-05-09 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Tie-back self-lock mechanism for suspended packer |
| CN102444387B (en) * | 2011-12-13 | 2015-04-08 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Tie-back self-lock mechanism for suspended packer |
| CN103015930A (en) * | 2012-12-11 | 2013-04-03 | 中国石油集团川庆钻探工程有限公司 | Multistage heavy-load rotary tail pipe hanger |
| CN103015930B (en) * | 2012-12-11 | 2015-08-19 | 中国石油集团川庆钻探工程有限公司 | Multistage heavy-load rotary tail pipe hanger |
| CN112696162A (en) * | 2021-03-12 | 2021-04-23 | 东营市福利德石油科技开发有限责任公司 | Downhole double-tube sliding self-sealing tool |
| CN112696162B (en) * | 2021-03-12 | 2022-07-01 | 东营市福利德石油科技开发有限责任公司 | Downhole double-tube sliding self-sealing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131215 Granted publication date: 20050209 |