CN204402376U - A kind of double-wall drill pipe well system - Google Patents
A kind of double-wall drill pipe well system Download PDFInfo
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- CN204402376U CN204402376U CN201420821199.XU CN201420821199U CN204402376U CN 204402376 U CN204402376 U CN 204402376U CN 201420821199 U CN201420821199 U CN 201420821199U CN 204402376 U CN204402376 U CN 204402376U
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Abstract
The utility model discloses a kind of double-wall drill pipe well system.This system primarily of gas phase injection device, liquid phase injection device, swivel control head, blowout preventer set, rotating fluid injection device, double-wall drill pipe, double-walled drill collar, measurement while drilling device and gas-liquid conflux pipe nipple, power drilling tool, drilling tool check valve drill bit composition; Gas phase and liquid phase, before measurement while drilling device, flow through respective passage, and respectively through measurement while drilling device; After flowing through measurement while drilling device, gas-liquid conflux short circuit place mixing, finally enter drilling well annular space from drill bit.The pulse that measurement mechanism produces, by pipe in the measurement of measurement while drilling device, is reached well head and detects by liquid phase.The method can solve the difficult problem that in deep-well and horizontal well, gas drilling while drilling is measured or logged well, and has wide market application foreground.
Description
Technical field
The utility model relates to a kind of double-wall drill pipe well system, belongs to oil-well drilling equipment and technology field.
Background technology
China has large-area low hole, hypotonic, low pressure, low abundance oil-gas reservoir, simultaneously deepening continuously along with oil-gas exploration and development, bores and meets easily leakage, high abrasive, extremely hard stratum are more and more.Air drilling solves an above-mentioned drilling well difficult problem, improve bit speed, the effective technology means of reservoir protec-tion, air drilling comprises air drilling, air-mist drilling, foam drilling and air-filling well-drilling, it is a kind of reservoir protec-tion, shorten the technology of well construction period, there is the huge advantage that other drilling technologies are incomparable, at present, measurement-while-drilling system both domestic and external generally adopts drilling fluid pulse to transmit survey data, this drilling measuring technology can reliablely and stablely work in liquid drilling fluid, but, for foam and air-filling well-drilling, because fluid compressibility is strong, drilling fluid pulse signal is very weak even can not produce effective pulse signal, therefore drilling liquid pressure pulse MWD cannot normally work.
Electromagnetic measurement while drilling (EM-MWD) is the new technology entering industrial applications the eighties in 20th century, having signaling rate height, not need circulating fluid just can transmit the DATA REASONING time short, EM-MWD system is not substantially by the impact of drilling fluid medium, be not only applicable to the measurement while drilling in conventional drilling liquid, but also be applicable to use in the drilling fluids such as gas foam atomizing air inflation.Form from EM-MWD transmission channel, it is built by underground signal emitter, down-hole dipole emission antenna, drill string, stratum, ground signal receiver etc. and forms, and stratum is channel ingredient, based on this transporting mechanism, the stability of EM-MWD channel and the electromagnetic property on reliability and stratum are closely-related, the transmission degree of depth especially vertical depth to be subject to the impact of formation resistivity larger.To decay along with drilling depth increases down-hole up-delivering signal thereupon, and cause signal to noise ratio to reduce the reliability decrease making Signal reception, when after arrival certain depth, ground cannot receive the signal uploaded down-hole, be the measurement while drilling difficult problem being difficult to go beyond.
Utility model content
The purpose of this utility model is the measurement while drilling problem in order to solve in foam drilling and air-filling well-drilling, especially the application such as deep-well peupendicular hole and horizontal well air drilling, a kind of double-wall drill pipe well system of special proposition.
The technical solution of the utility model comprises:
A kind of double-wall drill pipe well system, comprises gas phase injection device 1, liquid phase injection device 2, rotating fluid injection device 5, drilling rod 8, drill collar 11, measurement while drilling device 13 and gas-liquid and to conflux pipe nipple 14, power drilling tool 15, drilling tool check valve 16, drill bit 17; It is characterized in that: described drilling rod 8 is double-wall drill pipe 8, be made up of drilling rod 10 in concentric and outer drilling rod 9, between interior drilling rod 10 and outer drilling rod 9, form annular space; Described drill collar 11 is double-walled drill collar 11, has binary channels, is respectively inner liquid phase runner and outside gas phase runner; Described rotating fluid injection device 5 is made up of the central tube rotated and static housing, the central tube of rotating fluid injection device 5 is bimetallic tube composition, be respectively pipe and central tube outer tube in central tube, housing is processed with by-pass port, by-pass port is communicated with the annular space of central tube outer tube with interior pipe of central tube, and rotating fluid injection device 5 is arranged on the top of double-wall drill pipe 8; Liquid phase injection device 2 is communicated with the interior drilling rod 10 of double-wall drill pipe 8 by pipe in the central tube of rotating fluid injection device 5; Gas phase injection device 1 is communicated with the annular space of the interior drilling rod 10 of double-wall drill pipe 8 with outer drilling rod 9 with the annular space of central tube outer tube by pipe in the housing by-pass port of rotating fluid injection device 5, central tube; Measurement while drilling device 13 is two-layer pipe and is arranged on the lower end of double-walled drill collar 11, its bimetallic tube is made up of pipe and gaseous fluid outer tube in measurement respectively, liquid phase is by pipe in the measurement of measurement while drilling device 13, the pulse that measurement mechanism produces is reached well head detect, gas phase is flowed downward by gaseous fluid outer tube and pipe ring gap in measurement; The gas-liquid pipe nipple 14 that confluxes is connected to the lower end of measurement while drilling device 13, measures interior pipe together with the fluid collection of gaseous fluid outer tube, flow to drill bit 17 by power drilling tool 15, drilling tool check valve 16 by by measurement while drilling device 13.
The preferred drill string assembly of wherein said well system is rotating fluid injection device 5, double-wall drill pipe 8, double-walled drill collar 11, measurement while drilling device 13, gas-liquid are confluxed pipe nipple 14, power drilling tool 15, drilling tool check valve 16 and drill bit 17.
Such scheme also comprises: the outer drilling rod about 9 of described double-wall drill pipe 8 is processed with screw thread, is connected up and down between outer drilling rod 9 by screw thread, is connected, install wiper block between inside and outside drilling rod between interior drilling rod 10 by inserting mode.
The seal member of the annular space inside and outside the interior drilling rod 10 of described double-wall drill pipe 8 is provided with and isolates between drilling rod and the internal gutter of interior drilling rod 10.
The utility model has the advantages that measurement while drilling device upper aqueous phase and gas phase are carried respectively, pure liquid phase can make the pulse signal of measurement while drilling device pass to ground as the drilling well of conventional drilling liquid, carries out measurement while drilling or well logging.The method well solves the difficult problem that in deep-well and horizontal well, gas drilling while drilling is measured or logged well, and has wide market application foreground.
Accompanying drawing explanation
Fig. 1 is overall device and the connection diagram of a kind of double-wall drill pipe well system of the utility model.
Fig. 2 is the rotating fluid injection device schematic diagram of a kind of double-wall drill pipe well system of the utility model.
Fig. 3 is that the gas-liquid of a kind of double-wall drill pipe well system of the utility model is confluxed the schematic diagram of pipe nipple.
1. gas phase injection devices in figure, 2. liquid phase injection device, 3. gas phase injects pipeline, 4. liquid phase injects pipeline, 5. rotating fluid injection device, 6. swivel control head, 7. blowout preventer set, 8. the outer drilling rod of double-wall drill pipe 9., 10. drilling rod in, 11. double-walled drill collars (outward), 12. double-walled drill collars (interior), 13. measurement while drilling devices, 14. gas-liquids are confluxed pipe nipple, 15. power drilling tools, 16. drilling tool check valves, 17. drill bits, 18. swivel control head bypass, pipe in 19. rotating fluid injection device central tubes, 20. rotating fluid injection device point of suspension, 21. rotating fluid injection device central tube outer tube bypass, 22. gas-liquids are confluxed pipe nipple non-return flap, 23. air-flows conflux, and pipe nipple is interior manages.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
Embodiment 1:
With reference to accompanying drawing 1, a kind of double-wall drill pipe well system, comprise gas phase injection device 1(as the triumphant moral 1500-400HT of air compressor SULLAIR 1150XH/, supercharger E3430/243 etc.), liquid phase injection device 2(such as conventional drilling produces F-1600 slush pump etc. with Baoji petroleum machinery Co., Ltd), gas phase injects pipeline 3(as 3 " hard tubes, 3 " gas inject standpipe manifold, 6MPa shock-proof pressure gauge, supporting 3 " stop valve etc.), liquid phase injects pipeline 4(if conventional drilling is with 4 " ground high pressure hard tube and manifold group etc.), rotating fluid injection device 5(has another name called fill nipple/top, top and drives adapter, as Fig. 2), swivel control head 6(is as rotating blowout preventer/rotating flow guidance system), double-wall drill pipe 8, double-walled drill collar 11, measurement while drilling device 13 and gas-liquid conflux pipe nipple 14(as Fig. 3) composition.
Wherein: swivel control head 6 is provided with bypass 18.Double-wall drill pipe 8 is made up of drilling rod 10 in concentric and outer drilling rod 9, and form annular space between interior drilling rod 10 and outer drilling rod 9, outer drilling rod about 9 is processed with screw thread, is connected up and down between outer drilling rod 9 by screw thread, bears torsion and the stretching of drilling tool; Connected by inserting mode between interior drilling rod 10, interior drilling rod 10 is provided with seal member to isolate the internal gutter of annular space between inside and outside drilling rod and interior drilling rod 10, installs wiper block between inside and outside drilling rod.
As shown in Figure 2, rotating fluid injection device 5 is arranged on the top of double-wall drill pipe 8, is made up of the central tube rotated and static housing; The central tube of rotating fluid injection device 5 is bimetallic tube composition, be respectively pipe 19 and central tube outer tube in central tube, point of suspension 20(tri-on housing), central tube outer tube is processed with by-pass port 21, and by-pass port is communicated with the annular space of pipe in central tube 19 with central tube outer tube.
Liquid phase injection device 2 is communicated with the interior drilling rod 10 of double-wall drill pipe 8 by pipe in the central tube of rotating fluid injection device 5; Gas phase injection device 1 is communicated with the annular space of the interior drilling rod 10 of double-wall drill pipe 8 with outer drilling rod 9 with the annular space of central tube outer tube by pipe in the housing by-pass port of rotating fluid injection device 5, central tube.
Measurement while drilling device 13 is arranged on the lower end of double-walled drill collar 11 for two-layer pipe, its bimetallic tube is made up of pipe and gaseous fluid outer tube in measurement respectively, liquid phase is by pipe in the measurement of measurement while drilling device 13, the ranging pulse of generation is reached well head detect, gas phase is flowed downward by gaseous fluid outer tube and pipe ring gap in measurement.
As shown in Figure 3, the gas-liquid pipe nipple 14 that confluxes is made up of non-return flap 22 and the air-flow pipe 23 in pipe nipple that confluxes, be connected to the lower end of measurement while drilling device 13, by converging together for the fluid being measured interior pipe and gaseous fluid outer tube by measurement while drilling device 13, then flowing arrives drill bit 17.
Double-walled drill collar 11 has binary channels, is respectively inner liquid phase runner and outside gas phase runner.
The using method of the double-wall drill pipe well system of the present embodiment is as follows:
In the present embodiment, drill string assembly is: rotating fluid injection device 5+ double-wall drill pipe 8+ double-walled drill collar 11+ measurement while drilling device 13+ gas-liquid is confluxed pipe nipple 14+ power drilling tool 15+ drilling tool check valve 16+ drill bit 17.
Gas phase injection device 1 produces gas and by gas inject drilling tool, the annular space of drilling rod 10 and outer drilling rod 9, the gas phase runner of double-walled drill collar 11, the gaseous fluid outer tube of measurement while drilling device 13 and pipe ring gap in measuring in the annular space of pipe and central tube outer tube, double-wall drill pipe 8 in the central tube of the housing by-pass port of rotating fluid injection device 5, rotating fluid injection device 5 successively, the arrival gas-liquid pipe nipple 14 that confluxes mixes with liquid phase.
Liquid is injected drilling tool by liquid phase injection device 2, successively in the central tube internal tube duct, double-wall drill pipe 8 of rotating fluid injection device 5 the liquid phase runner of drilling rod 10 internal gutter, double-walled drill collar 11, measurement while drilling device 13 measurement in pipe arrive the gas-liquid pipe nipple 14 that confluxes and mix with gas phase.
Gas phase and liquid phase are confluxed after pipe nipple 14 confluxes in gas-liquid, be applicable to the power drilling tool of gas as drive medium through power drilling tool 15(), drilling tool check valve 16 (i.e. conventional drilling drilling tool check valve), drill bit 17, then enter the annular space of drilling tool and well; Then liquid phase reaches well head by pipe generation ranging pulse in the measurement of measurement while drilling device 13 and detects.
Gas-liquid mixed arrives shaft bottom, return on annular space after cutting carring, arrive blowout preventer set 7 and swivel control head 6 place, liquid-gas separator is entered through (choke manifold) by swivel control head bypass 18, torch is gone to after gas separaion, liquid and landwaste go to vibrosieve, and liquid enters circulating tank afterwards, recycle.
The ranging pulse of generation, by pipe in the measurement of measurement while drilling device 13, is reached well head and detects by liquid phase.
Claims (3)
1. a double-wall drill pipe well system, comprises gas phase injection device (1), liquid phase injection device (2), rotating fluid injection device (5), drilling rod (8), drill collar (11), measurement while drilling device (13) and gas-liquid and to conflux pipe nipple (14), power drilling tool (15), drilling tool check valve (16), drill bit (17); It is characterized in that: described drilling rod (8) is double-wall drill pipe (8), be made up of drilling rod (10) in concentric and outer drilling rod (9), between interior drilling rod (10) and outer drilling rod (9), form annular space; Described drill collar (11) is double-walled drill collar (11), has binary channels, is respectively inner liquid phase runner and outside gas phase runner; Described rotating fluid injection device (5) is made up of the central tube rotated and static housing, the central tube of rotating fluid injection device (5) is bimetallic tube composition, be respectively pipe and central tube outer tube in central tube, housing is processed with by-pass port, by-pass port is communicated with the annular space of central tube outer tube with interior pipe of central tube, and rotating fluid injection device (5) is arranged on the top of double-wall drill pipe (8); Liquid phase injection device (2) is communicated with the interior drilling rod (10) of double-wall drill pipe (8) by pipe in the central tube of rotating fluid injection device (5); Gas phase injection device (1) is communicated with the annular space of outer drilling rod (9) with the interior drilling rod (10) of double-wall drill pipe (8) with the annular space of central tube outer tube by pipe in the housing by-pass port of rotating fluid injection device (5), central tube; Measurement while drilling device (13) is for two-layer pipe and be arranged on the lower end of double-walled drill collar (11), its bimetallic tube is made up of pipe and gaseous fluid outer tube in measurement respectively, liquid phase is by pipe in the measurement of measurement while drilling device (13), the pulse that measurement mechanism produces is reached well head detect, gas phase is flowed downward by gaseous fluid outer tube and pipe ring gap in measurement; The gas-liquid pipe nipple (14) that confluxes is connected to the lower end of measurement while drilling device (13), in being measured by measurement while drilling device (13), pipe is together with the fluid collection of gaseous fluid outer tube, flows to drill bit (17) by power drilling tool (15), drilling tool check valve (16).
2. double-wall drill pipe well system according to claim 1, it is characterized in that: the outer drilling rod (9) of described double-wall drill pipe (8) is processed with screw thread up and down, outer drilling rod is connected up and down by screw thread between (9), interior drilling rod is connected by inserting mode between (10), installs wiper block between inside and outside drilling rod.
3. double-wall drill pipe well system according to claim 2, is characterized in that: the seal member of the annular space inside and outside the interior drilling rod (10) of described double-wall drill pipe (8) is provided with and isolates between drilling rod and the internal gutter of interior drilling rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821199.XU CN204402376U (en) | 2014-12-22 | 2014-12-22 | A kind of double-wall drill pipe well system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821199.XU CN204402376U (en) | 2014-12-22 | 2014-12-22 | A kind of double-wall drill pipe well system |
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| Publication Number | Publication Date |
|---|---|
| CN204402376U true CN204402376U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821199.XU Expired - Fee Related CN204402376U (en) | 2014-12-22 | 2014-12-22 | A kind of double-wall drill pipe well system |
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| CN (1) | CN204402376U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350913A (en) * | 2015-12-15 | 2016-02-24 | 重庆九州探矿机械技术开发公司 | Jet-grouting drilling rig and drilling mechanism thereof |
| CN105507812A (en) * | 2015-12-29 | 2016-04-20 | 中国矿业大学 | Microwave-radiation in-hole vaporized hydraulic flushing method |
| CN105781437A (en) * | 2014-12-22 | 2016-07-20 | 中石化胜利石油工程有限公司钻井工艺研究院 | Dual-wall drill pipe drilling system and drilling method |
| CN109441425A (en) * | 2018-11-20 | 2019-03-08 | 常州大学 | A kind of horizontal well double-wall drill pipe system large rock-carrying ability measurement device and measuring method |
-
2014
- 2014-12-22 CN CN201420821199.XU patent/CN204402376U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781437A (en) * | 2014-12-22 | 2016-07-20 | 中石化胜利石油工程有限公司钻井工艺研究院 | Dual-wall drill pipe drilling system and drilling method |
| CN105781437B (en) * | 2014-12-22 | 2018-01-26 | 中石化胜利石油工程有限公司钻井工艺研究院 | A kind of double-wall drill pipe well system and boring method |
| CN105350913A (en) * | 2015-12-15 | 2016-02-24 | 重庆九州探矿机械技术开发公司 | Jet-grouting drilling rig and drilling mechanism thereof |
| CN105507812A (en) * | 2015-12-29 | 2016-04-20 | 中国矿业大学 | Microwave-radiation in-hole vaporized hydraulic flushing method |
| CN105507812B (en) * | 2015-12-29 | 2017-08-11 | 中国矿业大学 | Waterpower hole-punching method is vaporized in a kind of microwave radiation hole |
| CN109441425A (en) * | 2018-11-20 | 2019-03-08 | 常州大学 | A kind of horizontal well double-wall drill pipe system large rock-carrying ability measurement device and measuring method |
| CN109441425B (en) * | 2018-11-20 | 2022-02-11 | 常州大学 | Method for measuring rock carrying capacity of horizontal well double-wall drill pipe system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20201222 |
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| CF01 | Termination of patent right due to non-payment of annual fee |