CN108518195A - Time-controlled extension hanger and its control method - Google Patents
Time-controlled extension hanger and its control method Download PDFInfo
- Publication number
- CN108518195A CN108518195A CN201810219746.XA CN201810219746A CN108518195A CN 108518195 A CN108518195 A CN 108518195A CN 201810219746 A CN201810219746 A CN 201810219746A CN 108518195 A CN108518195 A CN 108518195A
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- China
- Prior art keywords
- extension hanger
- motor
- control method
- top connection
- connect
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 210000002445 nipple Anatomy 0.000 claims description 30
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 7
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The present invention discloses a kind of time-controlled extension hanger and its control method, control method a, connect extension hanger upper end with drilling rod, extension hanger lower end is connect with tail pipe；B, timing is set in electric circuit in well plate, electric circuit in well plate can control down-hole battery to power to motor after reaching timing；C, extension hanger reaches progress seat when timing being arranged in step b and hangs operation.The extension hanger can realize that extension hanger automatic seat in remote control underground is hung by way of the opening time is set in advance on ground, the method meets remote control simultaneously, easy to operate, seat hangs reliable require, it is not influenced simultaneously by down-hole pressure variation, can effectively avoid the interference of a variety of underground complicated factors when prior art operation.
Description
Technical field
The present invention relates to oilfield drilling technical field, specifically a kind of time-controlled extension hanger and its controlling party
Method.
Background technology
When carrying out oil drilling, during drilling liner cementing, extension hanger is needed to hang over upper layer casing by slip spider
On, the tail pipe of support lower part connection.It is by building the pressure in well head, utilizing pipe that the general extension hanger used at present, which sits extension mode,
Inside and outside head of liquid difference pushes slips to move upwards, and seat is hung on the casing of upper layer.Maximum is asked existing for this seat hanging method
Topic is exactly that extension hanger inner wall needs that pressure transmission hole is arranged, and pressure transmission hole is connected to liquid in pipe, and intraluminal fluid column pressure passes through pressure transmission
Hole is applied on slips, once pressure transmission hole during going into the well due to blocking the impurity of underground more, intraluminal fluid column pressure can be caused
It can not be applied on slips by pressure transmission hole, leading to occur extension hanger can not seat the problem of hanging；On the other hand, if tail pipe
Hanger encounters overpressure during going into the well and increases situation extremely, extension hanger can be caused to shift to an earlier date seat extension, bringing need not
The down hole problem wanted.
Invention content
Goal of the invention：The purpose of the present invention is for the deficiency in current technology, it is outstanding to provide a kind of time-controlled tail pipe
Hanging device and its control method can realize the remote control underground tail tube hanging by way of the opening time is set in advance on ground
The automatic seat of device is hung, and the method meets remote control simultaneously, easy to operate, seat hangs reliable requirement, while not by down-hole pressure
The influence of variation can effectively avoid the interference of a variety of underground complicated factors when prior art operation.
Technical solution：To achieve the above object, a kind of time-controlled extension hanger of present invention offer and its controlling party
Method, control method are as follows：
A, extension hanger upper end is connect with drilling rod, extension hanger lower end is connect with tail pipe；
B, timing is set in electric circuit in well plate, electric circuit in well plate can control down-hole battery to motor after reaching timing
Power supply；
C, extension hanger reaches progress seat when timing being arranged in step b and hangs operation.
Extension hanger include promoted short circuit, packoff nipple, slips, motor housing body, electric circuit in well plate, rotor,
Motor inner housing, down-hole battery, coupling sleeve, lower contact and top connection, rotor are coupled with motor housing body by coupling sleeve；
Coupling sleeve is connect with motor housing body by threaded screw rod mode；Motor inner housing lower end connects lower contact；Motor inner housing with
Confined space is constituted by sealing ring between motor housing body, down-hole battery, electric circuit in well plate and induction coil are installed on wherein；
Motor housing body upper end is connected with slips, and top connection is connect with motor inner housing, and packoff nipple, institute are connected in the top connection
It states packoff nipple upper end and is connected with promotion short circuit, the promotion short circuit is connect with packoff nipple by reverse thread；The promotion
Short circuit, packoff nipple, top connection and motor inner housing are tubular structure, the channel of Inner Constitution uniform smooth after a combination thereof.
As a kind of improvement of this programme, rotor is connected through a screw thread with coupling sleeve, motor inner housing and lower contact
It is connected through a screw thread, packoff nipple is connected through a screw thread with top connection.
As a kind of improvement of this programme, outer wall seamlessly transits after packoff nipple is connect with top connection, and outside packoff nipple
Wall diameter is remained unchanged by with top connection contact portion after cumulative one section.
As a kind of improvement of this programme, packoff nipple upper end internal orifice is horn mouth.
As a kind of improvement of this programme, the outer wall bracket of top connection is less than diameter in motor housing body, and motor housing body moves up
When coupling can be coated.
Advantageous effect：Time-controlled extension hanger disclosed in this invention and its control method, in practice of construction mistake
Cheng Zhong sets start by set date function when ground assembles extension hanger in the program of electric circuit in well plate, and electric circuit in well plate connects
Self-clocking behind energization source, after reaching setting time, electric circuit in well plate automatically controls the work of underground direct current motor, tail tube hanging
Device starts to act；Down-hole battery is powered to electric circuit in well plate and underground direct current motor, and rotor rotation drives coupling sleeve rotation
Turn, under the cooperation of threaded screw rod, pushing motor outer housing moves upwards coupling sleeve, and motor housing body pushes slips short along sealing
Inclined-plane on section moves upwards, and realizes that extension hanger seat is hung.
Outer wall seamlessly transits after packoff nipple is connect with top connection, ensures that slips uplink is smooth, is not in clamping stagnation.
Packoff nipple upper end internal orifice is horn mouth, facilitates the installation for promoting short circuit.
Time-controlled extension hanger disclosed in this invention and its control method, can realize in ground remote control
Extension hanger automatic seat in underground is hung, and the method meets remote control simultaneously, easy to operate, seat hangs reliable requirement, and
It is not influenced by down-hole pressure variation, can effectively avoid the interference of a variety of underground complicated factors when traditional technology operation.
Description of the drawings
Fig. 1, extension hanger structural schematic diagram；
Fig. 2, extension hanger slips attachment structure schematic diagram；
Fig. 3, extension hanger downhole pipeline structural schematic diagram；
Fig. 4, extension hanger control principle drawing；
Structural schematic diagram after Fig. 5, extension hanger seat are hung；
Reference numerals list：1, short circuit is promoted；2, packoff nipple；3, slips；4, motor housing body；5, electric circuit in well plate；6, electric
Machine rotor；7, upper sealing ring；8, motor inner housing；9, down-hole battery；10, coupling sleeve；11, lower seal；12, lower contact；13、
Top connection；14, drilling rod；15, tail pipe；16, well head；17, extension hanger.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following specific implementation modes are only
For illustrating the present invention rather than limiting the scope of the invention.It should be noted that word " preceding " used in the following description,
" rear ", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to direction or remote
Direction from geometric center of specific component.
It is a kind of time-controlled extension hanger as shown in Figure 1, including promotes short circuit 1, packoff nipple 2, slips 3, electricity
Machine outer housing 4, electric circuit in well plate 5, rotor 6, motor inner housing 8, down-hole battery 9, coupling sleeve 10, lower contact 12 and on connect
First 13, rotor 6 is coupled with motor housing body 4 by coupling sleeve 10, and rotor 6 is connected through a screw thread with coupling sleeve 10；
Coupling sleeve 10 is connect with motor housing body 4 by threaded screw rod mode；Motor inner housing 8 is connected through a screw thread with lower contact 12；
Motor inner housing 8 is sealed composition confined air by upper sealing ring 7 and lower seal 11 respectively with 4 both ends of motor housing body
Between, down-hole battery 9 and electric circuit in well plate 5 are installed on wherein；4 upper end of motor housing body is connected with slips 3, as shown in Fig. 2, slips
3 are connect by mechanical engagement with motor housing body 4；Top connection 13 is connect with motor inner housing 8, and sealing is connected in top connection 13
Pipe nipple 2, packoff nipple 2 are connected through a screw thread with top connection 13, are promoted short circuit 1 and are connect by reverse thread with packoff nipple 2；Institute
State and promote short circuit 1, packoff nipple 2, top connection 13 and motor inner housing 8 are tubular structure, Inner Constitution is uniform after a combination thereof
Smooth channel.Outer wall seamlessly transits after packoff nipple 2 is connect with top connection 13, and 2 outer diameter of packoff nipple by with above connect
First 13 contact portion remains unchanged after starting cumulative one section.2 upper end internal orifice of packoff nipple is horn mouth.13 outer wall bracket of top connection
Less than 4 internal diameter of motor housing body, coupling can be coated when motor housing body 4 moves up.
When carrying out actual job, downhole pipeline structure is as shown in figure 3, promote 1 upper end jointed rod 14 of short circuit, lower contact 12
Union tail 15.
The control method for carrying out extension hanger seat extension is as follows：
A, extension hanger upper end is connect with drilling rod 14, extension hanger lower end is connect with tail pipe 15；
B, timing is set in the electric circuit in well plate 5, reach electric circuit in well plate 5 after timing can control down-hole battery 9 to
Motor is powered；
C, 15 hanger of tail pipe reaches progress seat when timing being arranged in step b and hangs operation.
Control method schematic diagram as shown in figure 4, ground assemble extension hanger 17 when, in the program of electric circuit in well plate 5
Middle setting start by set date function, electric circuit in well plate 5 powers on rear self-clocking, after reaching setting time, electric circuit in well plate 5
The work of underground direct current motor is automatically controlled, 15 hanger of tail pipe starts to act；Down-hole battery 9 is straight to electric circuit in well plate 5 and underground
Galvanic electricity machine is powered, and rotor 6 rotates, and drives coupling sleeve 10 to rotate, coupling sleeve 10 is under the cooperation of threaded screw rod, pushing motor
Outer housing 4 moves upwards, and motor housing body 4 pushes inclined-plane of the slips 3 on packoff nipple 2 to move upwards, and realizes tail tube hanging
Device seat is hung, and state is as shown in Figure 5 after extension hanger seat is hung.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
Claims (5)
1. a kind of time-controlled extension hanger and its control method, which is characterized in that including extension hanger, the tail pipe
Hanger includes promoting short circuit (1), packoff nipple (2), slips (3), motor housing body (4), electric circuit in well plate (5), motor to turn
Sub (6), motor inner housing (8), down-hole battery (9), coupling sleeve (10), lower contact (12) and top connection (13), rotor (6)
Coupled by coupling sleeve (10) with motor housing body (4)；Coupling sleeve (10) is connected with motor housing body (4) by threaded screw rod mode
It connects；Motor inner housing (8) lower end connects lower contact (12)；Pass through sealing ring between motor inner housing (8) and motor housing body (4)
Confined space is constituted, down-hole battery (9) and electric circuit in well plate (5) are installed on wherein；Motor housing body (4) upper end is connected with slips
(3), top connection (13) is connect with motor inner housing (8), and packoff nipple (2), the sealing are connected on the top connection (13)
Pipe nipple (2) upper end, which is connected with, promotes short circuit (1), and the promotion short circuit (1) is connect with packoff nipple (2) by reverse thread；Institute
It states and promotes short circuit (1), packoff nipple (2), top connection (13) and motor inner housing (8) are tubular structure, internal after a combination thereof
Constitute the channel of uniform smooth；
A kind of control method includes the following steps：
A, extension hanger upper end is connect with drilling rod (14), extension hanger lower end is connect with tail pipe (15)；
B, timing is set in electric circuit in well plate (5), electric circuit in well plate (5) can control down-hole battery after reaching timing
(9) it powers to motor；
C, extension hanger reaches progress seat when timing being arranged in step b and hangs operation.
2. a kind of time-controlled extension hanger as described in claim 1 and its control method, it is characterised in that：The electricity
Machine rotor (6) is connected through a screw thread with coupling sleeve (10), and the motor inner housing (8) is connected through a screw thread with lower contact (12),
The packoff nipple (2) is connected through a screw thread with top connection (13).
3. a kind of time-controlled extension hanger as claimed in claim 2 and its control method, it is characterised in that：It is described close
Outer wall seamlessly transits after envelope pipe nipple (2) is connect with top connection (13), and packoff nipple (2) outer diameter with top connection (13) by connecing
Contact portion separately begins to remain unchanged after cumulative one section.
4. a kind of time-controlled extension hanger as claimed in claim 3 and its control method, it is characterised in that:It is described
Packoff nipple (2) upper end internal orifice is horn mouth.
5. a kind of time-controlled extension hanger as claimed in claim 4 and its control method, it is characterised in that：On described
Connector (13) outer wall bracket is less than motor housing body (4) internal diameter, and motor housing body (4) can coat coupling when moving up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219746.XA CN108518195A (en) | 2018-03-16 | 2018-03-16 | Time-controlled extension hanger and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810219746.XA CN108518195A (en) | 2018-03-16 | 2018-03-16 | Time-controlled extension hanger and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518195A true CN108518195A (en) | 2018-09-11 |
Family
ID=63433957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810219746.XA Pending CN108518195A (en) | 2018-03-16 | 2018-03-16 | Time-controlled extension hanger and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518195A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267185B1 (en) * | 1999-08-03 | 2001-07-31 | Schlumberger Technology Corporation | Apparatus and method for communication with downhole equipment using drill string rotation and gyroscopic sensors |
| CN2453119Y (en) * | 2000-08-24 | 2001-10-10 | 胜利石油管理局渤海钻井总公司 | Oil well tail pipe holding means of mechanical slips locus type |
| CN101876243A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Control system of pumping system |
| CN102808589A (en) * | 2012-08-16 | 2012-12-05 | 中国石油大学(北京) | Motor-driven underground tractor for coiled tubing |
| CN105927179A (en) * | 2016-05-06 | 2016-09-07 | 西南石油大学 | Pressing expansion type downhole annular blowout preventer and communication method thereof |
| CN107227948A (en) * | 2017-05-19 | 2017-10-03 | 中国石油集团川庆钻探工程有限公司 | The method that ground controls downhole orientation hydrajet tool |
-
2018
- 2018-03-16 CN CN201810219746.XA patent/CN108518195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267185B1 (en) * | 1999-08-03 | 2001-07-31 | Schlumberger Technology Corporation | Apparatus and method for communication with downhole equipment using drill string rotation and gyroscopic sensors |
| CN2453119Y (en) * | 2000-08-24 | 2001-10-10 | 胜利石油管理局渤海钻井总公司 | Oil well tail pipe holding means of mechanical slips locus type |
| CN101876243A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Control system of pumping system |
| CN102808589A (en) * | 2012-08-16 | 2012-12-05 | 中国石油大学(北京) | Motor-driven underground tractor for coiled tubing |
| CN105927179A (en) * | 2016-05-06 | 2016-09-07 | 西南石油大学 | Pressing expansion type downhole annular blowout preventer and communication method thereof |
| CN107227948A (en) * | 2017-05-19 | 2017-10-03 | 中国石油集团川庆钻探工程有限公司 | The method that ground controls downhole orientation hydrajet tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180911 |
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| RJ01 | Rejection of invention patent application after publication |