CN106168118A - A kind of Worm-gear type drillstring in horizontal section is sent into instrument - Google Patents
A kind of Worm-gear type drillstring in horizontal section is sent into instrument Download PDFInfo
- Publication number
- CN106168118A CN106168118A CN201610524525.4A CN201610524525A CN106168118A CN 106168118 A CN106168118 A CN 106168118A CN 201610524525 A CN201610524525 A CN 201610524525A CN 106168118 A CN106168118 A CN 106168118A
- Authority
- CN
- China
- Prior art keywords
- worm
- righting
- screwed connection
- shaft
- inner chamber
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
Abstract
The present invention relates to during a kind of horizontal well creeps into, provide axial feeding thrust for drill string, the Worm-gear type drillstring in horizontal section reducing drill string and frictional resistance is sent into instrument.It solves the problem that drillstring in horizontal section is sent into difficulty.Its technical scheme is: elastomer stator is fixed on stator case inner chamber, stator case upper end and the screwed connection of top connection lower end, stator case lower end and the screwed connection of universal shaft housing upper end；Screw rotor inserts elastomer stator inner chamber, screw rotor lower end and the screwed connection of universal drive shaft upper end；Worm shaft is inserted in righting tube inner chamber stepped hole, worm shaft upper end and the screwed connection of universal drive shaft lower end, worm shaft lower end and the screwed connection of end cap upper end；Righting cylinder upper end and the screwed connection of universal shaft housing lower end, righting cylinder lower end and the screwed connection of lower contact upper end；In worm gear seat, worm gear and the bearing pin integral installation axial pass trough on three righting ribs of righting cylinder.The present invention provides power for drill string axial feeding, effectively extends horizontal section wellbore length.
Description
Technical field
The present invention relates to during a kind of horizontal well creeps into, provide axial feeding thrust for drill string, reduce drill string and well
The Worm-gear type drillstring in horizontal section of frictional resistance is sent into instrument.
Background technology
In oil and gas industry, the application of horizontal well technology substantially increases well yield and oil gas field recovery ratio,
Reduce oil-gas field development cost.But, during horizontal well creeps into, owing to horizontal section wellbore is big with the frictional resistance of drill string, lead
Cause drillstring in horizontal section and be sent into difficulty, seriously constrain the length of horizontal section wellbore.Drill string is sent into difficulty can further result in drill string
Deflection deformation and destruction occur, and the exploitation to oil-gas reservoir resource is totally unfavorable.
Some are had to be specifically designed to reduction horizontal section wellbore and the antifriction of drill string frictional resistance at present on domestic and international market
Instrument, representative is installs the antifriction short circuit of roller and produces the hydroscillator of continuous shaking, the former by drill string and
The static friction of well becomes rolling friction, and the static friction of drill string and well is become dynamic friction by the latter, rises the most to a certain extent
Arrive the effect of antifriction.But above-mentioned antifriction instrument is the most only based on the friction resistance reduced between drill string and well
Power, along with the increase of well horizontal section length, is difficult to ensure that drill string is effectively sent into all the time.
Therefore based on above-mentioned technical background, spy of the present invention provides a kind of Worm-gear type drillstring in horizontal section to be sent into instrument, permissible
Axial feeding thrust is actively provided for drill string, helps drill string to be effectively sent into.
Summary of the invention
It is an object of the invention to: the problem being sent into difficulty in order to solve drillstring in horizontal section, a kind of Worm-gear type of special offer
Drillstring in horizontal section is sent into instrument.
In order to achieve the above object, the present invention is by the following technical solutions: a kind of Worm-gear type drillstring in horizontal section is sent into
Instrument, be by top connection, screw rotor, elastomer stator, stator case, universal drive shaft, universal shaft housing, worm shaft, upper sealing ring,
Upper taper roll bearing, righting cylinder, screw, bearing pin, worm gear seat, worm gear, lower taper roll bearing, lower seal, end cap and under
Joint is constituted；Its architectural feature is: top connection upper end and upper drilling string screwed connection, and lower contact lower end and lower drilling string screw thread are even
Connect；Elastomer stator is fixed on stator case inner chamber, stator case upper end and the screwed connection of top connection lower end, stator case lower end and
The screwed connection of universal shaft housing upper end；Screw rotor inner chamber arranges an axially extending bore, and screw rotor lower end is set to box thread, spiral shell
Bar rotor bottom circumference is uniformly arranged three inclined hole connection interior or exterior spaces；Screw rotor inserts elastomer stator inner chamber, screw rotor
Lower end and the screwed connection of universal drive shaft upper end；Universal drive shaft lower end is set to box thread, and universal drive shaft bottom circumference is uniformly arranged three tiltedly
Hole connection interior or exterior space；Worm shaft upper end is set to male thread, and lower end is set to male thread, and worm shaft cylindrical top arranges a circle
Raised step, the raised step face of cylinder is provided with sealed groove, is set to worm screw in the middle part of worm shaft cylindrical, and worm shaft inner chamber sets
Put a lower upper surface of axially extending bore connection；End cap inner chamber arranges an axially extending bore, and end cap upper end is provided with box thread, end cap cylindrical
Bottom arranges a circle raised step, and raised step is provided with sealed groove on the face of cylinder；Righting tube inner chamber arrange two ends big,
Middle little axial step hole, righting cylinder upper end is provided with male thread, and righting cylinder lower end is provided with box thread, in righting cylinder cylindrical
Portion's circumference is uniformly arranged three righting ribs, and each righting rib arranges an axial pass trough connection righting cylinder interior or exterior space, righting rib
It is provided with step surface outside upper axial pass trough, step surface is provided with screw hole；Upper sealing ring is arranged on worm shaft upper lobes
In sealed groove on stepped cylindrical face, lower seal is arranged in the sealed groove on end cap lower lobes stepped cylindrical face；
Worm shaft is inserted in righting tube inner chamber stepped hole, worm shaft upper end and the screwed connection of universal drive shaft lower end, worm shaft lower end and end cap
Upper end screwed connection；Upper taper roll bearing is arranged on the step surface on righting tube inner chamber stepped hole top, lower taper roller axle
Hold on the step surface being arranged on righting tube inner chamber stepped hole bottom；Righting cylinder upper end and the screwed connection of universal shaft housing lower end, hold up
Positive cylinder lower end and the screwed connection of lower contact upper end；Being provided with groove in the middle part of worm gear seat, groove both sides are provided with through hole, worm gear seat two
End is provided with stepped hole；The centrally disposed axially extending bore of worm gear；Worm gear bearing pin is arranged in worm gear seat central slot；Worm gear
In seat, worm gear and bearing pin integral installation axial pass trough on three righting ribs of righting cylinder, worm gear seat and righting cylinder are solid with screw
Fixed connection.
After installation, the worm and worm wheel in the middle part of worm-wheel shaft cylindrical constitute drive connection.
The invention has the beneficial effects as follows: (1) present invention can utilize worm gear to rotate to be drill string axial feeding and provide power, changes
Become the mode that traditional well drilling drill string is sent into, horizontal section wellbore length can be greatly prolonged；(2) present invention utilizes drilling fluid to drive
Dynamic, control simple and reliable；(3) present invention is purely mechanic structure, it is easy to adapt to down-hole complex working condition.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention a kind of Worm-gear type drillstring in horizontal section is sent into instrument；
Fig. 2 is righting cylinder of the present invention, worm gear seat and the structural representation of worm gear；
Fig. 3 is righting cylinder of the present invention, worm gear seat and the schematic three dimensional views of worm gear；
Fig. 4 is the schematic three dimensional views of righting cylinder of the present invention；
Fig. 5 is worm gear seat of the present invention, bearing pin and the schematic three dimensional views of worm gear；
In figure: 1. top connection, 2. screw rotor, 3. elastomer stator, 4. stator case, 5. universal drive shaft, 6. universal shaft housing,
7. worm shaft, 8. go up sealing ring, 9. go up taper roll bearing, 10. righting cylinder, 11. screws, 12. bearing pins, 13. worm gear seats, 14.
Worm gear, 15. times taper roll bearings, 16. lower seal, 17. end caps, 18. lower contacts.
Detailed description of the invention
As it is shown in figure 1, one Worm-gear type drillstring in horizontal section of the present invention is sent into instrument, it is by top connection 1, screw rotor
2, elastomer stator 3, stator case 4, universal drive shaft 5, universal shaft housing 6, worm shaft 7, upper sealing ring 8, upper taper roll bearing 9,
Righting cylinder 10, screw 11, bearing pin 12, worm gear seat 13, worm gear 14, lower taper roll bearing 15, lower seal 16, end cap 17 and under
Joint 18 is constituted；Its architectural feature is: top connection 1 upper end and upper drilling string screwed connection, lower contact 18 lower end and lower drilling string
Screwed connection；Elastomer stator 3 is fixed on stator case 4 inner chamber, stator case 4 upper end and top connection 1 lower end screwed connection, stator
Housing 4 lower end and universal shaft housing 6 upper end screwed connection；Screw rotor 2 inner chamber arranges an axially extending bore, screw rotor 2 lower end
Being set to box thread, screw rotor 2 bottom circumference is uniformly arranged three inclined hole connection interior or exterior spaces；Screw rotor 2 inserts rubber
Stator 3 inner chamber, screw rotor 2 lower end and universal drive shaft 5 upper end screwed connection；Universal drive shaft 5 lower end is set to box thread, universal drive shaft 5
Bottom circumference is uniformly arranged three inclined hole connection interior or exterior spaces；Worm shaft 7 upper end is set to male thread, and lower end is set to public spiral shell
Stricture of vagina, worm shaft 7 cylindrical top arranges a circle raised step, and the raised step face of cylinder is provided with sealed groove, worm shaft 7 cylindrical
Middle part is set to worm screw, and worm shaft 7 inner chamber arranges a lower upper surface of axially extending bore connection；End cap 17 inner chamber arranges one and axially leads to
Hole, end cap 17 upper end is provided with box thread, and end cap 17 cylindrical bottom arranges a circle raised step, and the raised step face of cylinder is arranged
There is sealed groove；Upper sealing ring 8 is arranged in the sealed groove on worm shaft 7 upper lobes stepped cylindrical face, lower seal 16
It is arranged in the sealed groove on end cap 17 lower lobes stepped cylindrical face；Worm shaft 7 is inserted in righting cylinder 10 inner chamber stepped hole,
Worm shaft 7 upper end and universal drive shaft 5 lower end screwed connection, worm shaft 7 lower end and end cap 17 upper end screwed connection；Upper taper roller axle
Holding on 9 step surfaces being arranged on righting cylinder 10 inner chamber stepped hole top, lower taper roll bearing 15 is arranged on righting cylinder 10 inner chamber
On the step surface of stepped hole bottom；Righting cylinder 10 upper end and universal shaft housing 6 lower end screwed connection, righting cylinder 10 lower end and under connect
18 upper end screwed connections；As shown in Fig. 2, Fig. 3 and Fig. 5, being provided with groove in the middle part of worm gear seat 13, groove both sides are provided with logical
Hole, worm gear seat 13 two ends are provided with stepped hole；The centrally disposed axially extending bore of worm gear 14；Worm gear 14 bearing pin 12 is arranged on worm gear
In seat 13 central slot；Worm gear seat 13, worm gear 14 and bearing pin 12 integral installation axially leading on 10 3 righting ribs of righting cylinder
In groove, worm gear seat 13 and righting cylinder 10 connect with screw 11 is fixing.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, righting cylinder 10 inner chamber arranges little axial step hole big, middle, two ends,
Righting cylinder 10 upper end is provided with male thread, and righting cylinder 10 lower end is provided with box thread, and in the middle part of righting cylinder 10 cylindrical, circumference uniformly sets
Put three righting ribs, each righting rib arranges axial pass trough connection righting cylinder 10 interior or exterior space, axial pass trough on righting rib
Outside is provided with step surface, and step surface is provided with screw hole.
The present invention a kind of Worm-gear type drillstring in horizontal section be sent into instrument operation principle be: under enter the present invention to horizontal segment
Well, turn on pump circulating fluid, a drilling fluid part drives screw rotor 2 to rotate, and another part is from screw rotor 2 central through hole
Flowing through, drilling fluid flows through from worm shaft 7 intracavity through hole through universal drive shaft 5 bottom inclined hole；Screw rotor 2 drives universal drive shaft 5 to rotate, and ten thousand
Driving worm-wheel shaft 7 to rotate to axle 5, worm-wheel shaft 7 drives worm gear 14 to rotate；Worm gear 14 contacts with well, and worm gear 14 is sent out in well
Raw rolling；The present invention utilizes the active of worm gear 14 to roll as power, and being sent into for drill string provides axial thrust, completely difference with
Operation principle toward horizontal well antifriction.
Claims (2)
1. Worm-gear type drillstring in horizontal section be sent into an instrument, be by top connection (1), screw rotor (2), elastomer stator (3),
Stator case (4), universal drive shaft (5), universal shaft housing (6), worm shaft (7), upper sealing ring (8), upper taper roll bearing (9),
Righting cylinder (10), screw (11), bearing pin (12), worm gear seat (13), worm gear (14), lower taper roll bearing (15), lower seal
(16), end cap (17) and lower contact (18) are constituted；It is characterized in that: top connection (1) upper end and upper drilling string screwed connection, lower contact
(18) lower end and lower drilling string screwed connection；Elastomer stator (3) is fixed on stator case (4) inner chamber, stator case (4) upper end and
Top connection (1) lower end screwed connection, stator case (4) lower end and universal shaft housing (6) upper end screwed connection；Screw rotor (2)
Inner chamber arranges an axially extending bore, and screw rotor (2) lower end is set to box thread, and screw rotor (2) bottom circumference is uniformly arranged three
Individual inclined hole connection interior or exterior space；Screw rotor (2) inserts elastomer stator (3) inner chamber, screw rotor (2) lower end and universal drive shaft (5)
Upper end screwed connection；Universal drive shaft (5) lower end is set to box thread, and universal drive shaft (5) bottom circumference is uniformly arranged three inclined hole connections
Interior or exterior space；Worm shaft (7) upper end is set to male thread, and lower end is set to male thread, and worm shaft (7) cylindrical top arranges a circle
Raised step, the raised step face of cylinder is provided with sealed groove, is set to worm screw, worm shaft (7) in the middle part of worm shaft (7) cylindrical
Inner chamber arranges a lower upper surface of axially extending bore connection；End cap (17) inner chamber arranges an axially extending bore, and end cap (17) upper end is provided with
Box thread, end cap (17) cylindrical bottom arranges a circle raised step, and raised step is provided with sealed groove on the face of cylinder；Upper sealing
Circle (8) is arranged in the sealed groove on worm shaft (7) upper lobes stepped cylindrical face, and lower seal (16) is arranged on end cap
(17) in the sealed groove on lower lobes stepped cylindrical face；Worm shaft (7) is inserted in righting cylinder (10) inner chamber stepped hole, worm screw
Axle (7) upper end and universal drive shaft (5) lower end screwed connection, worm shaft (7) lower end and end cap (17) upper end screwed connection；Upper circular cone rolls
Sub-bearing (9) is arranged on the step surface on righting cylinder (10) inner chamber stepped hole top, and lower taper roll bearing (15) is arranged on holds up
On the step surface of positive cylinder (10) inner chamber stepped hole bottom；Righting cylinder (10) upper end and universal shaft housing (6) lower end screwed connection, hold up
Positive cylinder (10) lower end and lower contact (18) upper end screwed connection；Worm gear seat (13) middle part is provided with groove, and groove both sides are provided with
Through hole, worm gear seat (13) two ends are provided with stepped hole；The centrally disposed axially extending bore of worm gear (14)；Worm gear (14) bearing pin (12)
It is arranged in worm gear seat (13) central slot；Worm gear seat (13), worm gear (14) and bearing pin (12) integral installation are in righting cylinder (10)
In axial pass trough on three righting ribs, worm gear seat (13) and righting cylinder (10) connect with screw (11) is fixing；Installation with
After, the worm and worm wheel (14) in the middle part of worm-wheel shaft (7) cylindrical constitute drive connection.
Worm-gear type drillstring in horizontal section the most according to claim 1 is sent into instrument, it is characterized in that: described righting cylinder (10)
Inner chamber arranges little axial step hole big, middle, two ends, and righting cylinder (10) upper end is provided with male thread, under righting cylinder (10)
End is provided with box thread, and in the middle part of righting cylinder (10) cylindrical, circumference is uniformly arranged three righting ribs, and each righting rib arranges an axle
Connect righting cylinder (10) interior or exterior space to groove, outside the axial pass trough on righting rib, be provided with step surface, step surface is arranged
There is screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524525.4A CN106168118B (en) | 2016-07-04 | 2016-07-04 | A kind of Worm-gear type drillstring in horizontal section is sent into instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524525.4A CN106168118B (en) | 2016-07-04 | 2016-07-04 | A kind of Worm-gear type drillstring in horizontal section is sent into instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106168118A true CN106168118A (en) | 2016-11-30 |
| CN106168118B CN106168118B (en) | 2018-02-09 |
Family
ID=58065549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610524525.4A Expired - Fee Related CN106168118B (en) | 2016-07-04 | 2016-07-04 | A kind of Worm-gear type drillstring in horizontal section is sent into instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168118B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894755A (en) * | 2017-05-08 | 2017-06-27 | 西南石油大学 | A kind of waterpower pulse formula is spun helicoid hydraulic motor |
| CN108104744A (en) * | 2017-12-22 | 2018-06-01 | 西华大学 | A kind of reciprocating wellbore dredging tool |
| CN112377127A (en) * | 2020-11-30 | 2021-02-19 | 西华大学 | Drilling tool with well cleaning function |
| RU2777048C1 (en) * | 2021-11-26 | 2022-08-01 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Device for creating an axial force on a chisel when drilling horizontal wells |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2215139C1 (en) * | 2002-05-20 | 2003-10-27 | Закрытое акционерное общество Научно-производственная фирма "Самарские Горизонты" | Generator-multiplier for supply of bottomhole telemetering system |
| US20060131079A1 (en) * | 2004-12-16 | 2006-06-22 | Halliburton Energy Services, Inc. | Composite motor stator |
| CN200943442Y (en) * | 2006-08-26 | 2007-09-05 | 德州联合石油机械有限公司 | Helicoid drill for saturated salt-water-resistant drilling well |
| CN102425382B (en) * | 2011-09-22 | 2014-06-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
-
2016
- 2016-07-04 CN CN201610524525.4A patent/CN106168118B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2215139C1 (en) * | 2002-05-20 | 2003-10-27 | Закрытое акционерное общество Научно-производственная фирма "Самарские Горизонты" | Generator-multiplier for supply of bottomhole telemetering system |
| US20060131079A1 (en) * | 2004-12-16 | 2006-06-22 | Halliburton Energy Services, Inc. | Composite motor stator |
| CN200943442Y (en) * | 2006-08-26 | 2007-09-05 | 德州联合石油机械有限公司 | Helicoid drill for saturated salt-water-resistant drilling well |
| CN102425382B (en) * | 2011-09-22 | 2014-06-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894755A (en) * | 2017-05-08 | 2017-06-27 | 西南石油大学 | A kind of waterpower pulse formula is spun helicoid hydraulic motor |
| CN106894755B (en) * | 2017-05-08 | 2019-01-01 | 西南石油大学 | A kind of waterpower pulse formula is spun helicoid hydraulic motor |
| CN108104744A (en) * | 2017-12-22 | 2018-06-01 | 西华大学 | A kind of reciprocating wellbore dredging tool |
| CN108104744B (en) * | 2017-12-22 | 2019-11-29 | 西华大学 | A kind of reciprocating wellbore dredging tool |
| CN112377127A (en) * | 2020-11-30 | 2021-02-19 | 西华大学 | Drilling tool with well cleaning function |
| RU2777048C1 (en) * | 2021-11-26 | 2022-08-01 | Публичное акционерное общество "Татнефть" имени В.Д. Шашина | Device for creating an axial force on a chisel when drilling horizontal wells |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106168118B (en) | 2018-02-09 |
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Granted publication date: 20180209 Termination date: 20200704 |