CN104775773A - Continuous oil pipe stepper injection mechanism - Google Patents
Continuous oil pipe stepper injection mechanism Download PDFInfo
- Publication number
- CN104775773A CN104775773A CN201410011872.8A CN201410011872A CN104775773A CN 104775773 A CN104775773 A CN 104775773A CN 201410011872 A CN201410011872 A CN 201410011872A CN 104775773 A CN104775773 A CN 104775773A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cylinder
- single piston
- rod cylinder
- coiled tubing
- 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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 42
- 238000002347 injection Methods 0.000 title abstract description 6
- 239000007924 injection Substances 0.000 title abstract description 6
- 239000007788 liquid Substances 0.000 claims description 42
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003129 oil well Substances 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a continuous oil pipe stepper injection mechanism. The mechanism comprises an upper clamping mechanism, a lower clamping mechanism and a longitudinal extension mechanism, wherein the upper clamping mechanism and the lower clamping mechanism clamp and fix continuous oil pipes at the center, and the longitudinal extension mechanism is connected between the two clamping mechanisms; when the longitudinal extension mechanism extends, one of the upper and lower clamping mechanisms can clamp the continuous oil pipes. The continuous oil pipe stepper injection mechanism completely consists of hydraulic elements; and the continuous oil pipes are injected into an oil-water well section by section from a well mouth. The continuous oil pipe stepper injection mechanism has no need to use a large crane for lifting, and only adopts an oil-water well minor repair working vehicle.
Description
Technical field
The present invention relates to continuous oil pipe operation equipment, especially a kind of coiled tubing stepping injecting mechanism.
Background technology
Continuous oil pipe operation equipment is the one of oil field job that requires special skills equipment, has the title of " omnipotent working equipment ".But current coiled tubing injection head is by motor direct-drive, there is driving force of going into the well little, equipment heaviness needs crane lifting, there is job safety risk, the problem such as to install, field-strip workload is large.
Summary of the invention
The object of the present invention is to provide a kind of coiled tubing stepping injecting mechanism, all adopt Hydraulic Elements composition coiled tubing step-by-step movement injecting mechanism, coiled tubing is entered oil-water well from well head one section of one section of underground.Without the need to large-scale crane lifting, adopt light overhaul of oil-water well working vehicle.
In order to reach above-mentioned purpose, present invention employs following technical scheme, this coiled tubing stepping injecting mechanism, comprise clamping device, lower clamping device, longitudinal extension mechanism, described upper clamping device, the coiled tubing of lower clamping device to center grip, and be connected with longitudinal extension mechanism between above-mentioned two clamping devices, described longitudinal extension mechanism is when flexible, and upper and lower two clamping devices can only one of them clamp coiled tubing.
Described upper clamping device comprises top single piston rod cylinder and be arranged on the top pawl that being used for inside this top single piston rod cylinder clamps coiled tubing, and described top single piston rod cylinder and top pawl to distribute 2 or 4 around coiled tubing Central Symmetry; Described lower clamping device comprises end single piston rod cylinder and is arranged on the end pawl that being used for inside this end single piston rod cylinder clamps coiled tubing, and single piston rod cylinder of the described end and end pawl to distribute 2 or 4 around coiled tubing Central Symmetry; Described longitudinal extension mechanism is perpendicular single piston rod cylinder, and the quantity that described top single piston rod cylinder, perpendicular single piston rod cylinder, end single piston rod cylinder three are arranged is consistent.
Described top single piston rod cylinder is provided with the tailpiece of the piston rod inlet for connecting interior liquid pipe of taking blame for others at tailpiece of the piston rod, and described top single piston rod cylinder is provided with the cylinder body bottom inlet for connecting outer liquid pipe of taking blame for others in cylinder body bottom; The tailpiece of the piston rod inlet of described top single piston rod cylinder is connected with a liquid outlet of three position four-way electrohy-draulic valve by steel pipe, and the cylinder body bottom inlet of described top single piston rod cylinder is connected with another liquid outlet of three position four-way electrohy-draulic valve by another steel pipe.
Single piston rod cylinder of the described end is provided with the tailpiece of the piston rod inlet for connecting liquid pipe in end cylinder at tailpiece of the piston rod, single piston rod cylinder of the described end is provided with the cylinder body bottom inlet for connecting the outer liquid pipe of end cylinder in cylinder body bottom, the tailpiece of the piston rod inlet of single piston rod cylinder of the described end is connected with a liquid outlet of three position four-way electrohy-draulic valve by steel pipe, and the cylinder body bottom inlet of single piston rod cylinder of the described end is connected with another liquid outlet of three position four-way electrohy-draulic valve by another steel pipe.。
Described perpendicular single piston rod cylinder is provided with the tailpiece of the piston rod inlet for connecting liquid pipe on perpendicular cylinder at tailpiece of the piston rod, described perpendicular single piston rod cylinder is provided with the cylinder body bottom inlet for connecting liquid pipe under perpendicular cylinder in cylinder body bottom, the tailpiece of the piston rod inlet of described perpendicular single piston rod cylinder is connected with a liquid outlet of three position four-way electrohy-draulic valve by steel pipe, and the cylinder body bottom inlet of described perpendicular single piston rod cylinder is connected with another liquid outlet of three position four-way electrohy-draulic valve by another steel pipe.
Single piston rod cylinder of the described end is connected with mounting disc by the cylinder body of self, and described mounting disc is connected by bolt, nut with wellhead flange dish.
Described three position four-way electrohy-draulic valve has in external control lets out function, and containing manual-operated emergent control device.
Compared to prior art, the present invention has following beneficial effect:
Whole employing Hydraulic Elements composition coiled tubing injection head, driving pressure is large; Structure is simple, does not need Special crane to lift; Technique is simple, and operation harm risk is low, reduces cost of labor.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of coiled tubing stepping injecting mechanism of the present invention;
Fig. 2 is the top view of a kind of coiled tubing stepping injecting mechanism of the present invention;
Fig. 3 is the hydraulic control lines figure of a kind of coiled tubing stepping injecting mechanism of the present invention.
In figure: coiled tubing 1, top pawl 2, top single piston rod cylinder 3, liquid pipe 4 on perpendicular cylinder, perpendicular single piston rod cylinder 5, liquid pipe 6 under perpendicular cylinder, end single piston rod cylinder 7, end pawl 8, mounting disc 9, wellhead flange dish 10, bolt 11, nut 12, to take blame for others outer liquid pipe 13, to take blame for others interior liquid pipe 14, to take blame for others the total liquid in-out mouth 15 of interior liquid pipe, to take blame for others the total liquid in-out mouth 16 of outer liquid pipe, steel pipe 21, another steel pipe 22, three position four-way electrohy-draulic valve 23, tailpiece of the piston rod inlet 31, cylinder body bottom inlet 32, tailpiece of the piston rod inlet 51, cylinder body bottom inlet 52, tailpiece of the piston rod inlet 71, cylinder body bottom inlet 72.
Detailed description of the invention
Detailed description for the present invention and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited the present invention.
As Figure 1-3, a kind of coiled tubing stepping injecting mechanism, comprise clamping device, lower clamping device, longitudinal extension mechanism, described upper clamping device, the coiled tubing of lower clamping device to center grip, and be connected with longitudinal extension mechanism between above-mentioned two clamping devices, described longitudinal extension mechanism is when flexible, and upper and lower two clamping devices can only one of them clamp coiled tubing.Described upper clamping device comprises top single piston rod cylinder and be arranged on the top pawl that being used for inside this top single piston rod cylinder clamps coiled tubing, and described top single piston rod cylinder and top pawl to distribute 2 or 4 around coiled tubing Central Symmetry; Described lower clamping device comprises end single piston rod cylinder and is arranged on the end pawl that being used for inside this end single piston rod cylinder clamps coiled tubing, and single piston rod cylinder of the described end and end pawl to distribute 2 or 4 around coiled tubing Central Symmetry; Described longitudinal extension mechanism is perpendicular single piston rod cylinder, and the quantity that described top single piston rod cylinder, perpendicular single piston rod cylinder, end single piston rod cylinder three are arranged is consistent.
Described top pawl 2, top single piston rod cylinder 3, perpendicular single piston rod cylinder 5, end pawl 8, end single piston rod cylinder 7 to distribute 2 or 4 around coiled tubing Central Symmetry.
Between described top single piston rod cylinder 3, tailpiece of the piston rod inlet 31 interior liquid pipe 14 of taking blame for others connects, and cylinder body bottom inlet 32 outer liquid pipe 13 of taking blame for others connects.
Between described perpendicular single piston rod cylinder 5, tailpiece of the piston rod inlet 51 liquid pipe 4 on perpendicular cylinder connects, and cylinder body bottom inlet 52 liquid pipe 6 under perpendicular cylinder connects.
Between described end single piston rod cylinder 7, tailpiece of the piston rod inlet 71 liquid pipe in end cylinder connects, and the cylinder body bottom inlet 72 outer liquid pipe of end cylinder connects.
The tailpiece of the piston rod inlet 31 of described top single piston rod cylinder 3, perpendicular single piston rod cylinder 5 cylinder body bottom inlet 52, end single piston rod cylinder 7 cylinder body bottom inlet 72 are communicated with by steel pipe, and are connected with a liquid outlet of three position four-way electrohy-draulic valve 23.
Described top single piston rod cylinder 3 cylinder body bottom inlet 32, the perpendicular tailpiece of the piston rod inlet 51 of single piston rod cylinder 5, the tailpiece of the piston rod inlet 71 of end single piston rod cylinder 7 are communicated with by steel pipe, and are connected with another liquid outlet of three position four-way electrohy-draulic valve 23.
The cylinder body of described end single piston rod cylinder 7 is connected with mounting disc 9.
Described mounting disc 9 is connected by bolt 11, nut 12 with wellhead flange dish 10.
Described three position four-way electrohy-draulic valve 23 has in external control lets out function, and containing manual-operated emergent control device.
Concrete operational method: provide hydraulic pressure to top single piston rod cylinder 3, perpendicular single piston rod cylinder 5, end single piston rod cylinder 7 by three position four-way electrohy-draulic valve 23 1 liquid outlets, end single piston rod cylinder 7 promotes end pawl 8 and clamps coiled tubing 1, the piston rod simultaneously pushing up single piston rod cylinder 3 is regained, and the piston rod of perpendicular single piston rod cylinder 5 promotes top single piston rod cylinder 3 moves.After the piston rod of perpendicular single piston rod cylinder 5 moves to design attitude, three position four-way electrohy-draulic valve 23 controls commutation, another liquid outlet passes through hydraulic pressure, the piston rod of top single piston rod cylinder 3 stretches out and makes top pawl 2 clamp coiled tubing 1, the piston rod of end single piston rod cylinder 7 is regained, and end pawl 8 unclamps coiled tubing 1, and the piston rod of perpendicular single piston rod cylinder 5 is regained, drive top single piston rod cylinder 3 to move down, coiled tubing 1 is moved down and injects oil well.
The foregoing is only preferred embodiment of the present invention, be not used to limit the scope of the claims of the present invention, other use the equivalence of patent spirit of the present invention to change, and all should all belong to the scope of the claims of the present invention.
Claims (1)
1. a coiled tubing stepping injecting mechanism, it is characterized in that, comprise clamping device, lower clamping device, longitudinal extension mechanism, described upper clamping device, the coiled tubing of lower clamping device to center grip, and be connected with longitudinal extension mechanism between above-mentioned two clamping devices, described longitudinal extension mechanism is when flexible, and upper and lower two clamping devices can only one of them clamp coiled tubing.
2. a kind of coiled tubing stepping injecting mechanism according to claim 1, it is characterized in that, described upper clamping device comprises top single piston rod cylinder and be arranged on the top pawl that being used for inside this top single piston rod cylinder clamps coiled tubing, and described top single piston rod cylinder and top pawl to distribute 2 or 4 around coiled tubing Central Symmetry; Described lower clamping device comprises end single piston rod cylinder and is arranged on the end pawl that being used for inside this end single piston rod cylinder clamps coiled tubing, and single piston rod cylinder of the described end and end pawl to distribute 2 or 4 around coiled tubing Central Symmetry; Described longitudinal extension mechanism is perpendicular single piston rod cylinder, and the quantity that described top single piston rod cylinder, perpendicular single piston rod cylinder, end single piston rod cylinder three are arranged is consistent.
3. a kind of coiled tubing stepping injecting mechanism according to claim 2, it is characterized in that, described top single piston rod cylinder is provided with the tailpiece of the piston rod inlet for connecting interior liquid pipe of taking blame for others at tailpiece of the piston rod, and described top single piston rod cylinder is provided with the cylinder body bottom inlet for connecting outer liquid pipe of taking blame for others in cylinder body bottom; The tailpiece of the piston rod inlet of described top single piston rod cylinder is connected with a liquid outlet of three position four-way electrohy-draulic valve by steel pipe, and the cylinder body bottom inlet of described top single piston rod cylinder is connected with another liquid outlet of three position four-way electrohy-draulic valve by another steel pipe.
4. a kind of coiled tubing stepping injecting mechanism according to claim 2, it is characterized in that, single piston rod cylinder of the described end is provided with the tailpiece of the piston rod inlet for connecting liquid pipe in end cylinder at tailpiece of the piston rod, single piston rod cylinder of the described end is provided with the cylinder body bottom inlet for connecting the outer liquid pipe of end cylinder in cylinder body bottom, the tailpiece of the piston rod inlet of single piston rod cylinder of the described end is connected with a liquid outlet of three position four-way electrohy-draulic valve by steel pipe, and the cylinder body bottom inlet of single piston rod cylinder of the described end is connected with another liquid outlet of three position four-way electrohy-draulic valve by another steel pipe.
5. a kind of coiled tubing stepping injecting mechanism according to claim 2, it is characterized in that, described perpendicular single piston rod cylinder is provided with the tailpiece of the piston rod inlet for connecting liquid pipe on perpendicular cylinder at tailpiece of the piston rod, described perpendicular single piston rod cylinder is provided with the cylinder body bottom inlet for connecting liquid pipe under perpendicular cylinder in cylinder body bottom, the tailpiece of the piston rod inlet of described perpendicular single piston rod cylinder is connected with a liquid outlet of three position four-way electrohy-draulic valve by steel pipe, and the cylinder body bottom inlet of described perpendicular single piston rod cylinder is connected with another liquid outlet of three position four-way electrohy-draulic valve by another steel pipe.
6. a kind of coiled tubing stepping injecting mechanism according to claim 2, is characterized in that, single piston rod cylinder of the described end is connected with mounting disc by the cylinder body of self, and described mounting disc is connected by bolt, nut with wellhead flange dish.
7. a kind of coiled tubing stepping injecting mechanism according to claim 3 or 4 or 5, it is characterized in that, described three position four-way electrohy-draulic valve has in external control lets out function, and containing manual-operated emergent control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011872.8A CN104775773A (en) | 2014-01-11 | 2014-01-11 | Continuous oil pipe stepper injection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011872.8A CN104775773A (en) | 2014-01-11 | 2014-01-11 | Continuous oil pipe stepper injection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104775773A true CN104775773A (en) | 2015-07-15 |
Family
ID=53617497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410011872.8A Pending CN104775773A (en) | 2014-01-11 | 2014-01-11 | Continuous oil pipe stepper injection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104775773A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239948A (en) * | 2015-10-28 | 2016-01-13 | 新奥气化采煤有限公司 | Unclamping device and continuous pipe injection device having unclamping device |
| CN110076910A (en) * | 2019-05-09 | 2019-08-02 | 西南交通大学 | A kind of contact net concrete pillar sectional cutter |
| US10995563B2 (en) | 2017-01-18 | 2021-05-04 | Minex Crc Ltd | Rotary drill head for coiled tubing drilling apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998428A (en) * | 1975-11-18 | 1976-12-21 | Miles William B | Well pipe extractor and installer |
| US20040011530A1 (en) * | 2002-03-26 | 2004-01-22 | Felthager Michael J. | Long stroking tool |
| CN101333915A (en) * | 2007-06-28 | 2008-12-31 | 中信重工机械股份有限公司 | Fastener device for connecting and detaching bore rod |
| CN202913986U (en) * | 2012-08-03 | 2013-05-01 | 中国石油天然气集团公司 | Coiled tubing injection head |
| CN103114819A (en) * | 2013-03-06 | 2013-05-22 | 宝鸡通力鼎新专用汽车有限公司 | Auxiliary injection device of continuous oil pipe operation machine |
-
2014
- 2014-01-11 CN CN201410011872.8A patent/CN104775773A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3998428A (en) * | 1975-11-18 | 1976-12-21 | Miles William B | Well pipe extractor and installer |
| US20040011530A1 (en) * | 2002-03-26 | 2004-01-22 | Felthager Michael J. | Long stroking tool |
| CN101333915A (en) * | 2007-06-28 | 2008-12-31 | 中信重工机械股份有限公司 | Fastener device for connecting and detaching bore rod |
| CN202913986U (en) * | 2012-08-03 | 2013-05-01 | 中国石油天然气集团公司 | Coiled tubing injection head |
| CN103114819A (en) * | 2013-03-06 | 2013-05-22 | 宝鸡通力鼎新专用汽车有限公司 | Auxiliary injection device of continuous oil pipe operation machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239948A (en) * | 2015-10-28 | 2016-01-13 | 新奥气化采煤有限公司 | Unclamping device and continuous pipe injection device having unclamping device |
| CN105239948B (en) * | 2015-10-28 | 2018-08-10 | 新奥科技发展有限公司 | Release device and injection device for coiled tubing with the release device |
| US10995563B2 (en) | 2017-01-18 | 2021-05-04 | Minex Crc Ltd | Rotary drill head for coiled tubing drilling apparatus |
| US11136837B2 (en) | 2017-01-18 | 2021-10-05 | Minex Crc Ltd | Mobile coiled tubing drilling apparatus |
| CN110076910A (en) * | 2019-05-09 | 2019-08-02 | 西南交通大学 | A kind of contact net concrete pillar sectional cutter |
| CN110076910B (en) * | 2019-05-09 | 2021-06-08 | 西南交通大学 | Contact net concrete pillar segmentation cutting device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150715 |