CN105003211A - Self-propelled drilling pressure applying tool - Google Patents
Self-propelled drilling pressure applying tool Download PDFInfo
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- CN105003211A CN105003211A CN201510376785.7A CN201510376785A CN105003211A CN 105003211 A CN105003211 A CN 105003211A CN 201510376785 A CN201510376785 A CN 201510376785A CN 105003211 A CN105003211 A CN 105003211A
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- transmission shaft
- power transmission
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- tapping
- drill
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Abstract
The invention relates to a self-propelled drilling pressure applying tool for a large displacement well and a horizontal well. The problems that drilling pressure on a horizontal well section is difficult to apply and drill columns are difficult to feed are solved. According to the technical scheme, the upper end of a transmission shaft is in screwed connection to an output shaft of a positive displacement motor; the lower end of the transmission shaft is in screwed connection to a drill bit; a central tube is placed in an inner hole of the transmission shaft; three sliders penetrate in three through grooves of the transmission shaft and are inlaid in grooves in the middle of the central tube; a groove is formed in an inner circle of each half ring; two half rings are arranged on the three sliders; lower ends of half ring sleeves are in screwed connection to the upper end of a clamping seat; 'T'-shaped hooks of three tapping blocks are respectively arranged in three 'T'-shaped grooves in the lower portion of the clamping seat; projected outer edges of the lower portions of the tapping blocks are arranged in grooves in two sides of a slope of the transmission shaft; and after the self-propelled drilling pressure applying tool is mounted, screw blades of the three tapping blocks are distributed on the same helical line. A hydraulic driving mode is adopted, the self-propelled drilling pressure applying tool is reliable and easy to operate; after the self-propelled drilling pressure applying tool works, axial thrust is generated, the drilling pressure is applied to the drill bit, and a drill column on the upper portion of the drill bit can be dragged.
Description
Technical field
The self-advancing type the pressure of the drill that the present invention relates to a kind of extended reach well and horizontal well applies instrument.
Background technology
In oil and gas industry, the application of extended reach well and horizontal well is more and more extensive, has greatly saved drilling cost, has also improved the rate of oil and gas recovery.But the development difficulty of extended reach well and horizontal well is also much larger than the development difficulty of Vertical Well, especially produce frictional resistance at horizontal segment drill string and well, causing the pressure of the drill cannot pass to front end drill string and drill bit, even can there is deflection deformation in drill string.Therefore the drilling well length of horizontal segment is also restricted greatly, seriously constrains the technical development of extended reach well and horizontal well.
Applying comparatively successful a kind of instrument at horizontal segment is at present " hydroscillator ", this instrument utilizes continuous water hammer to make drill string produce axial vibration, make the stiction of drill string and well become dynamic friction multitude, reduce frictional resistance, make horizontal segment drill string send difficulty to and reduce.But the continuous shaking of hydroscillator generation has destruction to a certain degree to drill string and ground installation, the pressure of the drill on drill bit can not be changed simultaneously and apply the problem of difficulty.Based on the problems referred to above, spy of the present invention provides a kind of self-advancing type the pressure of the drill to apply instrument.
Summary of the invention
The object of the invention is: advancing to drag horizontal segment drill string, applying the pressure of the drill to drill bit, spy provides a kind of self-advancing type the pressure of the drill to apply instrument.
In order to achieve the above object, the present invention by the following technical solutions: a kind of self-advancing type the pressure of the drill applies instrument, is be made up of sheath, semi-ring, slide block, central tube, deck, tapping block and power transmission shaft; Its architectural feature is: power transmission shaft upper end and the screwed connection of helicoid hydraulic motor output shaft, power transmission shaft lower end and drill bit screwed connection; Power transmission shaft top circumference evenly arranges three grooves and is communicated with power transmission shaft interior or exterior space, and bottom cylindrical arranges a step, and step circumference evenly arranges three slopes, and the slope angle of wedge is 10 ° ~ 15 °, and both sides, slope are set to groove; Be set to a circle groove in the middle part of central tube cylindrical, power transmission shaft endoporus inserted by central tube, and three slide blocks embed in central tube central slot through power transmission shaft three grooves; Semi-ring inner circle is provided with a groove, and two semi-rings are arranged on three slide blocks, and slide block cylindrical embeds in half ring groove; Sheath is inserted in power transmission shaft, sheath lower end and the screwed connection of deck upper end; Arc surface is set to inside tapping block, lower inside is set to outward-dipping slope, the slope angle of wedge is identical with the power transmission shaft slope angle of wedge, tapping block arranged outside is arc surface, face is provided with screw blade to outer arc, and the lead angle of screw blade is 2 ° ~ 9 °, and rotation direction is dextrorotation, tapping block lower outside is provided with raised brim, and tapping block top is set to T-shape hook; Deck bottom circumference evenly arranges three T-shape grooves, the T-shape hook of three tapping blocks is arranged in the T-shape groove of three, deck bottom respectively, tapping block lower lobes outer rim is arranged in the groove of both sides, power transmission shaft slope, after installation, the screw blade of three tapping blocks is distributed on same helix.
The invention has the beneficial effects as follows: (1) the present invention adopts hydraulic driving mode, and operation is simple and reliable; (2) produce end thrust after work of the present invention, the pressure of the drill is applied to drill bit; (3) upper drilling string is pulled, help drill string to send to, extend horizontal section length.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of self-advancing type the pressure of the drill of the present invention applies that instrument tapping block stretches out state;
Fig. 2 is the structural representation that a kind of self-advancing type the pressure of the drill of the present invention applies instrument tapping block retracted state;
Fig. 3 is the three-dimensional structure schematic diagram that a kind of self-advancing type the pressure of the drill of the present invention applies instrument;
Fig. 4 is the three-dimensional structure schematic diagram of power transmission shaft;
Fig. 5 is the three-dimensional structure schematic diagram of tapping block;
In figure: 1. sheath, 2. semi-ring, 3. slide block, 4. central tube, 5. deck, 6. tapping block, 7. power transmission shaft.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, a kind of self-advancing type the pressure of the drill of the present invention applies instrument, is be made up of sheath 1, semi-ring 2, slide block 3, central tube 4, deck 5, tapping block 6 and power transmission shaft 7; Its architectural feature is: power transmission shaft 7 upper end and the screwed connection of helicoid hydraulic motor output shaft, power transmission shaft 7 lower end and drill bit screwed connection; As shown in Figure 4, power transmission shaft 7 top circumference evenly arranges three grooves and is communicated with power transmission shaft 7 interior or exterior space, and bottom cylindrical arranges a step, and step circumference evenly arranges three slopes, and the slope angle of wedge is 10 ° ~ 15 °, and both sides, slope are set to groove; Be set to a circle groove in the middle part of central tube 4 cylindrical, power transmission shaft 7 endoporus inserted by central tube 4, and three slide blocks 3 embed in central tube 4 central slot through power transmission shaft 7 three grooves; Semi-ring 2 inner circle is provided with a groove, and two semi-rings 2 are arranged on three slide blocks 3, and slide block 3 cylindrical embeds in semi-ring 2 groove; Sheath 1 is inserted in power transmission shaft 7, sheath 1 lower end and deck 5 upper end screwed connection; As shown in Figure 5, arc surface is set to inside tapping block 6, lower inside is set to outward-dipping slope, the slope angle of wedge is identical with the power transmission shaft 7 slope angle of wedge, and tapping block 6 arranged outside is arc surface, and face is provided with screw blade to outer arc, the lead angle of screw blade is 2 ° ~ 9 °, rotation direction is dextrorotation, and tapping block 6 lower outside is provided with raised brim, and tapping block 6 top is set to T-shape hook; Deck 5 bottom circumference evenly arranges three T-shape grooves, the T-shape hook of three tapping blocks 6 is arranged in the T-shape groove of three, deck 5 bottom respectively, tapping block 6 lower lobes outer rim is arranged in the groove of both sides, power transmission shaft 7 slope, after installation, the screw blade of three tapping blocks 6 is distributed on same helix.
The operating principle that a kind of self-advancing type the pressure of the drill of the present invention applies instrument is: under enter the present invention to net horizontal section, initial position is as shown in Figure 2; Turn on pump circulating fluid, central tube 4 moves downward under drilling fluid impetus, tapping block 6 is driven to move downward, tapping block 6 radial direction under the effect on power transmission shaft 7 slope is opened, the screw blade wedging borehole wall of tapping block 6, and the present invention rotates with the output shaft of helicoid hydraulic motor, screw blade axial advancement while rotating in a circumferential direction of tapping block 6, drive the present invention's axial advancement together, thus the pressure of the drill is applied to drill bit, and above dragging, drill string is sent to; When needing to regain drill string, stop circulation of drilling fluid, rotate backward drill string, after tapping block 6 is axial, return to initial position.
Claims (2)
1. self-advancing type the pressure of the drill applies an instrument, is be made up of sheath (1), semi-ring (2), slide block (3), central tube (4), deck (5), tapping block (6) and power transmission shaft (7); It is characterized in that: power transmission shaft (7) upper end and the screwed connection of helicoid hydraulic motor output shaft, power transmission shaft (7) lower end and drill bit screwed connection; Power transmission shaft (7) top circumference evenly arranges three grooves and is communicated with power transmission shaft (7) interior or exterior space, and bottom cylindrical arranges a step, and step circumference evenly arranges three slopes, and the slope angle of wedge is 10 ° ~ 15 °, and both sides, slope are set to groove; Be set to a circle groove in the middle part of central tube (4) cylindrical, power transmission shaft (7) endoporus inserted by central tube (4), and three slide blocks (3) embed in central tube (4) central slot through power transmission shaft (7) three grooves; Semi-ring (2) inner side is provided with a groove, and two semi-rings (2) are arranged on three slide blocks (3), and slide block (3) cylindrical embeds in semi-ring (2) groove; Sheath (1) is inserted in power transmission shaft (7), sheath (1) lower end and deck (5) upper end screwed connection; Tapping block (6) lower outside is provided with raised brim, and tapping block (6) top is set to T-shape hook; Deck (5) bottom circumference evenly arranges three T-shape grooves, the T-shape hook of three tapping blocks (6) is arranged in the T-shape groove of three, deck (5) bottom respectively, tapping block (6) lower lobes outer rim is arranged in the groove of power transmission shaft (7) both sides, slope, after installation, the screw blade of three tapping blocks (6) is distributed on same helix.
2. self-advancing type the pressure of the drill according to claim 1 applies instrument, it is characterized in that: described tapping block (6) inner side is set to arc surface, lower inside is set to outward-dipping slope, the slope angle of wedge is identical with power transmission shaft (7) the slope angle of wedge, tapping block (6) arranged outside is arc surface, face is provided with screw blade to outer arc, and the lead angle of screw blade is 2 ° ~ 9 °, and rotation direction is dextrorotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376785.7A CN105003211B (en) | 2015-07-01 | 2015-07-01 | A kind of self-advancing type the pressure of the drill applies instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376785.7A CN105003211B (en) | 2015-07-01 | 2015-07-01 | A kind of self-advancing type the pressure of the drill applies instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105003211A true CN105003211A (en) | 2015-10-28 |
| CN105003211B CN105003211B (en) | 2017-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510376785.7A Expired - Fee Related CN105003211B (en) | 2015-07-01 | 2015-07-01 | A kind of self-advancing type the pressure of the drill applies instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003211B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545225A (en) * | 2016-01-07 | 2016-05-04 | 西南石油大学 | Horizontal well drill stem feeding tool |
| CN108035688A (en) * | 2018-01-03 | 2018-05-15 | 西南石油大学 | A kind of anti-rotation is sent into instrument |
| CN108856916A (en) * | 2017-05-08 | 2018-11-23 | 施耐宝公司 | Internal screw thread screw tap |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463252A (en) * | 1966-09-19 | 1969-08-26 | Smith International | Automatic driller |
| CN201297129Y (en) * | 2008-11-21 | 2009-08-26 | 东营市创元石油机械制造有限公司 | Automatic well hydraulic pressure vibration reduction bit-feeding device |
| CN102206992A (en) * | 2011-04-01 | 2011-10-05 | 西南石油大学 | Crawler and crawling method for continuous oil pipe |
| CN102374360A (en) * | 2011-11-29 | 2012-03-14 | 西南石油大学 | Hydraulic drive telescopic downhole tool running device of horizontal well |
| CN103015894A (en) * | 2013-01-21 | 2013-04-03 | 西南石油大学 | Friction and resistance reducing tool with axial crawling function |
| CN103541666A (en) * | 2013-11-19 | 2014-01-29 | 西南石油大学 | Hydraulic variable-diameter centralizer |
-
2015
- 2015-07-01 CN CN201510376785.7A patent/CN105003211B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463252A (en) * | 1966-09-19 | 1969-08-26 | Smith International | Automatic driller |
| CN201297129Y (en) * | 2008-11-21 | 2009-08-26 | 东营市创元石油机械制造有限公司 | Automatic well hydraulic pressure vibration reduction bit-feeding device |
| CN102206992A (en) * | 2011-04-01 | 2011-10-05 | 西南石油大学 | Crawler and crawling method for continuous oil pipe |
| CN102374360A (en) * | 2011-11-29 | 2012-03-14 | 西南石油大学 | Hydraulic drive telescopic downhole tool running device of horizontal well |
| CN103015894A (en) * | 2013-01-21 | 2013-04-03 | 西南石油大学 | Friction and resistance reducing tool with axial crawling function |
| CN103541666A (en) * | 2013-11-19 | 2014-01-29 | 西南石油大学 | Hydraulic variable-diameter centralizer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545225A (en) * | 2016-01-07 | 2016-05-04 | 西南石油大学 | Horizontal well drill stem feeding tool |
| CN105545225B (en) * | 2016-01-07 | 2017-12-12 | 西南石油大学 | A kind of drillstring in horizontal section is sent into instrument |
| CN108856916A (en) * | 2017-05-08 | 2018-11-23 | 施耐宝公司 | Internal screw thread screw tap |
| US10596648B2 (en) | 2017-05-08 | 2020-03-24 | Snap-On Incorporated | Internal thread chase |
| CN108856916B (en) * | 2017-05-08 | 2024-03-19 | 施耐宝公司 | Internal thread tap |
| CN108035688A (en) * | 2018-01-03 | 2018-05-15 | 西南石油大学 | A kind of anti-rotation is sent into instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105003211B (en) | 2017-03-08 |
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Granted publication date: 20170308 Termination date: 20180701 |