CN106337654B - A kind of drilling rig and method using supercritical carbon dioxide - Google Patents
A kind of drilling rig and method using supercritical carbon dioxide Download PDFInfo
- Publication number
- CN106337654B CN106337654B CN201611035838.XA CN201611035838A CN106337654B CN 106337654 B CN106337654 B CN 106337654B CN 201611035838 A CN201611035838 A CN 201611035838A CN 106337654 B CN106337654 B CN 106337654B
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- Prior art keywords
- outer tube
- drilling
- inner tube
- tube
- carbon dioxide
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Abstract
The present invention relates to oil-gas minings and the technical field of the device and method of drilling well jet stream, more particularly to a kind of drilling rig and method using supercritical carbon dioxide, it prevents " ice packet " from generating simultaneously efficient rock-breaking, improve bit speed and clear rock ability simultaneously, make drilling more efficient, the lower utilization supercritical carbon dioxide of cost；Drilling rig includes continuous-tube roller, inner tube drilling pump, outer tube drilling pump, injection head, outer tube, inner tube and drilling well main body；Drilling well main body includes screwed union, screwed union is internally provided with outer tube cavity and inner tube cavity, the side wall of screwed union and bottom end are respectively arranged with multiple backward nozzles and multiple forward direction nozzles, screwed union is internally provided with self-oscillation chamber and multiple points of chambers, the inside of chamber is each divided to be both provided with disc spring group, and disc spring group is mounted on by sealing ring and divided on chamber inner sidewall in multiple points of chambers.
Description
Technical field
The present invention relates to oil-gas mining and the technical field of the device and method of drilling well jet stream, more particularly to a kind of utilization
The drilling rig and method of supercritical carbon dioxide.
Background technology
It is well known that as national economic development is to the sharp increase of oil gas demand for energy and oil gas energy new strategy
Implementation, oil-gas exploration and development field constantly extends, from good geology such as self-contained, high pressure (or normal pressure), middle and high infiltration uniform sandstones
The oil field of condition has gradually been transferred to complex fault block, hypotonic, heavy crude reservoir, the old filed of pressure failure and shale oil gas, coal
The unconventional petroleum resources such as layer gas.Supercritical carbon dioxide drilling technology is by the use of supercritical carbon dioxide as drilling fluid
A kind of New well drilling method, deep-well down-hole motor can effectively be driven by having, and control bottom pressure is easy, broken rock threshold pressure is low,
The advantages that broken rock speed is fast, energy formation damage.Therefore it is a kind of great using supercritical carbon dioxide jet stream rock-breaking and well-drilling
The untraditional reservoir drilling method of potentiality.And supercritical carbon dioxide refers in 31.1 DEG C of critical-temperature, critical pressure
CO 2 fluid on 7.38MPa, with viscosity is low, diffusion coefficient is big, density is big, good fluidity, solvability are strong
With the characteristics such as mass transfer performances are strong；
But there is also some shortcomings at present for supercritical carbon dioxide fluidics.First, broken rock and clear rock efficiency are not
Height needs to improve broken rock pressure；Second is that the Joule-Thomson effect that supercritical carbon dioxide generates after jet nozzle can make
Temperature reduces, and so as to form " ice packet ", seriously affects drilling efficiency, and substantially reduce the service life of drilling rig；
In conclusion for improving drilling efficiency, had using supercritical carbon dioxide fluidics unrivaled excellent
Gesture, but broken rock and clear rock efficiency is low and " ice packet " problem constrains the further development of the technology, are the passes that need to be solved at present
Key problem.
Invention content
Prevent " ice packet " from generating simultaneously efficient rock-breaking, while improve brill in order to solve the above technical problems, the present invention provides one kind
Well speed and clear rock ability, make drilling more efficient, the lower drilling rig and method using supercritical carbon dioxide of cost.
The drilling rig using supercritical carbon dioxide of the present invention is bored including continuous-tube roller, inner tube drilling pump, outer tube
Well pump, injection head, outer tube, inner tube and drilling well main body, said inner tube drilling pump and outer tube drilling pump are connect with continuous-tube roller,
The outer tube and the top input terminal of inner tube are inserted into injection head, and the output terminal of said inner tube drilling pump passes through the first connection
Pipe with the input terminal of inner tube across connecting after injection head, after the output terminal of outer tube drilling pump passes through injection head by the second communicating pipe
It is connected with the input terminal of outer tube, and the outer tube is located at the outside of inner tube；The drilling well main body includes screwed union, the spiral shell
Rotary joint is mounted on the lower section of outer tube and inner tube, and the screwed union is internally provided with outer tube cavity and inner tube cavity, described
The top of screwed union is provided with outer tube interface and interior interface tube, and the side wall of screwed union and bottom end are respectively arranged with multiple backward
Nozzle and multiple forward direction nozzles, the output terminal of the outer tube and the input terminal of outer tube cavity are communicated with outer tube interface, and outer tube leads to
The output terminal of chamber is communicated with backward nozzle, and the output terminal of said inner tube and the input terminal of inner tube cavity are communicated with interior interface tube,
Screwed union is internally provided with self-oscillation chamber and multiple points of chambers, the output terminal of said inner tube cavity and multiple points of chambers it is defeated
Enter end to communicate with self-oscillation chamber, the output terminal of chamber is each divided to be communicated with a forward direction nozzle in multiple points of chambers, it is described
The inside of chamber is each divided to be both provided with disc spring group, and the disc spring group is mounted on by sealing ring and divides intracavitary side in multiple points of chambers
On wall.
The drilling rig using supercritical carbon dioxide of the present invention, further includes multiple V-type diversion trenches, and multiple V-types
Diversion trench is circumferentially positioned on the lateral wall of screwed union.
The drilling rig using supercritical carbon dioxide of the present invention, the top of the screwed union is provided with external screw thread knot
Structure further includes connector, and the connector is mounted on the top of screwed union, and outer spiral shell is provided on the lateral wall of connector
Internal thread structure, the top of the screwed union and outer tube are both provided on the inside tube wall of line structure, the outer tube and inner tube
The assembling of inside spiral shell close, the top of the connector and the inside spiral shell assembling of inner tube are closed.
The method that the drilling rig using supercritical carbon dioxide of the present invention carries out drilling well, includes the following steps：
1), prepare supercritical carbon dioxide and conventional drilling liquid；
2), inner tube drilling pump is driven supercritical carbon dioxide to be pumped into inner tube, while pass through company by continuous-tube roller
Continuous pipe drum driven outer tube drilling pump enters conventional drilling liquid pump in outer tube；
3), supercritical carbon dioxide sequentially passes through inner tube, interior interface tube and inner tube cavity and enters to self-oscillation chamber
It is interior, solid jet is changed to pulsing jet, supercritical carbon dioxide, which enters, later divides intracavitary drive disc spring group up-down vibration, then after
It is sprayed by preceding to nozzle；
4), conventional drilling liquid sprays after sequentially passing through outer tube, outer tube interface, outer tube cavity from backward nozzle.
Beneficial effects of the present invention are compared with prior art：Above-mentioned method and apparatus, by above-mentioned setting, in disc spring
Group up-down vibration under the drive of supercritical carbon dioxide, it is preceding to nozzle vibration so as to drive, prevent the generation of " ice packet "；And
And improve broken rock and clear rock efficiency, additionally it is possible to ground environment is protected, it is convenient and efficient, it is cost-effective.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of drilling well main body in the present invention；
Fig. 3 is the present invention looks up structural representation of drilling well main body in the present invention；
Fig. 4 is the sectional view of drilling well main body in the present invention；
Fig. 5 is the sectional view of drilling well main body in the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but be not limited to the scope of the present invention.
As shown in Figures 1 to 5, the drilling rig of the invention using supercritical carbon dioxide, including continuous-tube roller 2,
Inner tube drilling pump 1, outer tube drilling pump 3, injection head 4, outer tube 5, inner tube 6 and drilling well main body 7, inner tube drilling pump and outer tube drilling pump
It is connect with continuous-tube roller, the top input terminal of outer tube and inner tube is inserted into injection head, the output terminal of inner tube drilling pump
It is connected after passing through injection head by the first communicating pipe with the input terminal of inner tube, the output terminal of outer tube drilling pump passed through for the second communicating pipe
It is connected after across injection head with the input terminal of outer tube, and outer tube is located at the outside of inner tube；Drilling well main body includes screwed union 9,
Screwed union is mounted on the lower section of outer tube and inner tube, and screwed union is internally provided with outer tube cavity and inner tube cavity, and spiral connects
The top of head is provided with outer tube interface and interior interface tube, and the side wall of screwed union and bottom end are respectively arranged with multiple backward nozzles 10
With multiple forward direction nozzles 13, the output terminal of outer tube and the input terminal of outer tube cavity are communicated with outer tube interface, outer tube cavity it is defeated
Outlet is communicated with backward nozzle, and the output terminal of inner tube and the input terminal of inner tube cavity are communicated with interior interface tube, screwed union
It is internally provided with self-oscillation chamber 12 and multiple points of chambers, the input terminal of the output terminal of inner tube cavity and multiple points of chambers is and self-excitation
Concussion chamber communicates, and the output terminal of chamber is each divided to be communicated with a forward direction nozzle in multiple points of chambers, is each divided in multiple points of chambers
The inside of chamber is both provided with disc spring group 14, and disc spring group is mounted on by sealing ring 15 and divided on chamber inner sidewall.
The drilling rig using supercritical carbon dioxide of the present invention, further includes multiple V-type diversion trenches 11, and multiple V
Type diversion trench is circumferentially positioned on the lateral wall of screwed union, can further improve clear rock efficiency.
The drilling rig using supercritical carbon dioxide of the present invention, the top of screwed union are provided with external thread structure 8,
Connector is further included, connector is mounted on the top of screwed union, and is provided with external thread structure on the lateral wall of connector,
Internal thread structure is both provided on outer tube and the inside tube wall of inner tube, the top of screwed union and the inside spiral shell assembling of outer tube are closed,
The top of connector and the inside spiral shell assembling of inner tube are closed, and dismounting is more convenient.
The method that the drilling rig using supercritical carbon dioxide of the present invention carries out drilling well, includes the following steps：
1), prepare supercritical carbon dioxide and conventional drilling liquid；
2), inner tube drilling pump is driven supercritical carbon dioxide to be pumped into inner tube, while pass through company by continuous-tube roller
Continuous pipe drum driven outer tube drilling pump enters conventional drilling liquid pump in outer tube；
3), supercritical carbon dioxide sequentially passes through inner tube, interior interface tube and inner tube cavity and enters to self-oscillation chamber
It is interior, solid jet is changed to pulsing jet, supercritical carbon dioxide, which enters, later divides intracavitary drive disc spring group up-down vibration, then after
It is sprayed by preceding to nozzle；
4), conventional drilling liquid sprays after sequentially passing through outer tube, outer tube interface, outer tube cavity from backward nozzle.
Above-mentioned method and apparatus, the up-down vibration under drive of the disc spring group in supercritical carbon dioxide, before driving
It is vibrated to nozzle, prevents the generation of " ice packet "；And and improve broken rock and clear rock efficiency, additionally it is possible to ground environment is protected, it is convenient
Fast, it is cost-effective；Supercritical carbon dioxide is sprayed from forward direction nozzle, the V-arrangement diversion trench that acts on outside screwed union and generate
The energy of bigger improves clear rock efficiency.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and modification, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of drilling rig using supercritical carbon dioxide, which is characterized in that including continuous-tube roller, inner tube drilling pump,
Outer tube drilling pump, injection head, outer tube, inner tube and drilling well main body, said inner tube drilling pump and outer tube drilling pump are rolled with continuous pipe
The top input terminal of cylinder connection, the outer tube and inner tube is inserted into injection head, and the output terminal of said inner tube drilling pump passes through
First communicating pipe connected after passing through injection head with the input terminal of inner tube, and the output terminal of outer tube drilling pump is passed through by the second communicating pipe
It is connected after injection head with the input terminal of outer tube, and the outer tube is located at the outside of inner tube；The drilling well main body connects including spiral
Head, the screwed union are mounted on the lower section of outer tube and inner tube, and the screwed union is internally provided with outer tube cavity and inner tube
Cavity, the top of the screwed union are provided with outer tube interface and interior interface tube, and the side wall of screwed union and bottom end are set respectively
Have a multiple backward nozzles and multiple forward direction nozzles, the output terminal of the outer tube and the input terminal of outer tube cavity with outer tube interface phase
Logical, the output terminal of outer tube cavity is communicated with backward nozzle, and the output terminal of said inner tube and the input terminal of inner tube cavity are and inner tube
Interface communicates, and screwed union is internally provided with self-oscillation chamber and multiple points of chambers, the output terminal of said inner tube cavity and more
A input terminal for dividing chamber is communicated with self-oscillation chamber, each divide in multiple points of chambers the output terminal of chamber with a forward direction nozzle
It communicates, the inside of chamber is each divided to be both provided with disc spring group, and the disc spring group is installed by sealing ring in the multiple point of chamber
On chamber inner sidewall is divided.
2. a kind of drilling rig using supercritical carbon dioxide as described in claim 1, which is characterized in that further include multiple
V-type diversion trench, and multiple V-type diversion trenches are circumferentially positioned on the lateral wall of screwed union.
3. a kind of drilling rig using supercritical carbon dioxide as claimed in claim 2, which is characterized in that the spiral connects
The top of head is provided with external thread structure, further includes connector, and the connector is mounted on the top of screwed union, and is connecting
External thread structure is provided on the lateral wall of head, is both provided with internal thread structure on the inside tube wall of the outer tube and inner tube, institute
It states the top of screwed union and the inside spiral shell assembling of outer tube is closed, the top of the connector and the inside spiral shell assembling of inner tube are closed.
4. a kind of carry out drilling well using 3 any one of them of claims 1 to 3 using the drilling rig of supercritical carbon dioxide
Method, which is characterized in that include the following steps：
1), prepare supercritical carbon dioxide and conventional drilling liquid；
2), inner tube drilling pump is driven supercritical carbon dioxide to be pumped into inner tube, while by continuously managing by continuous-tube roller
Drum driven outer tube drilling pump enters conventional drilling liquid pump in outer tube；
3), supercritical carbon dioxide sequentially passes through inner tube, interior interface tube and inner tube cavity and enters in self-oscillation chamber, will
Solid jet is changed to pulsing jet, later supercritical carbon dioxide enter divides intracavitary drive disc spring group up-down vibration, then after pass through
Forward direction nozzle sprays；
4), conventional drilling liquid sprays after sequentially passing through outer tube, outer tube interface, outer tube cavity from backward nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035838.XA CN106337654B (en) | 2016-11-22 | 2016-11-22 | A kind of drilling rig and method using supercritical carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611035838.XA CN106337654B (en) | 2016-11-22 | 2016-11-22 | A kind of drilling rig and method using supercritical carbon dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337654A CN106337654A (en) | 2017-01-18 |
| CN106337654B true CN106337654B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611035838.XA Expired - Fee Related CN106337654B (en) | 2016-11-22 | 2016-11-22 | A kind of drilling rig and method using supercritical carbon dioxide |
Country Status (1)
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| CN (1) | CN106337654B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590512B (en) * | 2018-03-28 | 2023-10-10 | 中国矿业大学(北京) | Combustible ice-cold drilling method and device |
| CN108843393A (en) * | 2018-06-14 | 2018-11-20 | 山东山矿节能有限公司 | A kind of greenhouse CO2The discharge-reducing method for efficiently using and sealing up for safekeeping |
| CN109899081A (en) * | 2019-04-02 | 2019-06-18 | 中铁工程装备集团有限公司 | Utilize the development machine of supercritical carbon dioxide jet stream broken rock |
| CN115162954B (en) * | 2022-06-07 | 2023-08-22 | 西安石油大学 | Device and method for improving rock breaking efficiency of radial horizontal well |
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| CN105649537A (en) * | 2016-01-22 | 2016-06-08 | 西南石油大学 | Rotary self-propelled mixing jet bit with cutting wing ribs |
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| US20110079397A1 (en) * | 2009-10-05 | 2011-04-07 | IOR Canada Ltd. | Jet-drilling and completion process |
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|---|---|---|---|---|
| CN1091176A (en) * | 1993-02-17 | 1994-08-24 | 孙燕卿 | The flow control type vibration-jet device that is used for drill bit |
| US5411105A (en) * | 1994-06-14 | 1995-05-02 | Kidco Resources Ltd. | Drilling a well gas supply in the drilling liquid |
| US5944123A (en) * | 1995-08-24 | 1999-08-31 | Schlumberger Technology Corporation | Hydraulic jetting system |
| CN102041970A (en) * | 2010-11-30 | 2011-05-04 | 安东石油技术（集团）有限公司 | Protection device for separate stratum fracturing of continuous oil pipe |
| CN103502561A (en) * | 2011-04-29 | 2014-01-08 | 韦尔泰克有限公司 | Downhole casing system |
| CN203081296U (en) * | 2013-01-23 | 2013-07-24 | 中国石油化工股份有限公司 | Hydraulic jetting multi-nozzle radial drilling device |
| CN204200084U (en) * | 2014-09-27 | 2015-03-11 | 中国石油化工集团公司 | A kind of casing inner diameter of hydro powered is to boring high pressure rotary bistrique |
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| CN105298422A (en) * | 2015-10-21 | 2016-02-03 | 中国石油天然气集团公司 | Coiled tubing hydraulic-power rotary cutting system |
| CN105649537A (en) * | 2016-01-22 | 2016-06-08 | 西南石油大学 | Rotary self-propelled mixing jet bit with cutting wing ribs |
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| Publication number | Publication date |
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| CN106337654A (en) | 2017-01-18 |
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Granted publication date: 20180619 Termination date: 20211122 |