CN101126304A - Waterproof casing mounting method-immersed tube drilling method - Google Patents
Waterproof casing mounting method-immersed tube drilling method Download PDFInfo
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- CN101126304A CN101126304A CNA2006100153290A CN200610015329A CN101126304A CN 101126304 A CN101126304 A CN 101126304A CN A2006100153290 A CNA2006100153290 A CN A2006100153290A CN 200610015329 A CN200610015329 A CN 200610015329A CN 101126304 A CN101126304 A CN 101126304A
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Abstract
The invention relates to a water string installation method, namely, the immersed tube drilling method; a drill bit (2) is arranged at the lower end of a water string (1), the drill is connected with a power station (5) on a platform by a power hose bundle (8) in the water string (1), the water string (1) is hung on a large hook (3) of the platform drill and is lowered gradually, the rise and fall of the drilling tool and the power hose bundle (8) is realized by a cable winch (7) arranged on the platform and a hose winch (6), the drill bit (2) drills holes by the combination way of the mechanical drilling force and the water flushing force; the diameter of a drill hole (4) is greater than that of the water string (1), the water string (1) is inserted into the drill hole (4) together with the drill bit (2) until the design position is reached. The invention firstly proposes that the drill bit is arranged at the lower end of the water string and the well pipe is lowered during the drilling process, which avoids that the drill hole collapses and reduces the installation cost, and the invention is especially suitable for the addition of a small amount of new wells on the existing platform facility.
Description
Technical field
The invention belongs to the innovation of waterproof casing offshore installation method in the offshore oil engineering.
Background technology
The work of following waterproof casing belongs to bores preceding preparation, and purpose is insulating sea water, control drilling tool direction and provides mud circulation to return the passage of platform.Traditional waterproof casing offshore installation method is squeezed into method and is pierced method.The method of squeezing into is when fixed platform is dug a well, and after jacket installs and fixes, presses cluster well design well location, one by one waterproof casing is squeezed into well location by pile driver, is driven into the degree of depth and is not less than 40m.The method of piercing is to utilize drilling equipment on floating type or movable offshore boring island, and the well of subdrilling is descended waterproof casing then, grouting well cementation at last.As seen, traditional waterproof casing mounting method all needs Large-Scale Equipment, and therefore, marine mounting cost is high.For the situation that increases the minority well at existing platform facility, traditional waterproof casing mounting method is particularly uneconomical, the more important thing is that the method for piercing still squeezes into method and all have intrinsic defective, the defective of squeezing into method is to cause the platform vibration, influences ordinary production; The defective that pierces method is borehole wall slump problem.
Summary of the invention
Especially pierce the defective that method exists for fear of traditional waterproof casing mounting method, also for reducing marine mounting cost, the present invention proposes to pierce method at a kind of waterproof casing mounting method-immersed tube of the newly-increased minority well situation of existing platform facility simultaneously.Immersed tube pierces method and pierces in reservation on the basis of method friction advantage, and the rig drill bit is installed in bottom, waterproof casing bottom, and the waterproof casing that hangs is followed drill bit and pierced and sink in the soil.Avoid holing borehole wall slump thereby reached, reduce the purpose of mounting cost again.
The scheme that the present invention solves its technical problem is that waterproof casing is hung into mud by platform brill (repairing) well machine hook, the rig drill bit that is positioned at bottom, the waterproof casing bottom boring of breaking ground, bore diameter is slightly larger than the waterproof casing external diameter, and waterproof casing inserts in the boring, up to design attitude with rig.According to this invention, the concrete use of this method comprises rig is installed on bottom, waterproof casing bottom; Rig is connected with power station on the platform by the power hose bundle in the waterproof casing; Waterproof casing is hung on platform and bores on the hook of (repairing) well machine and slowly transfer; Realize the handling and the power hose bundle folding and unfolding of drilling tool by placing cable winch on the platform and hose winch; The rig drill bit dashes the mode that combines with power auger strand and waterpower spray and bores native pore-forming, and the aperture is greater than the waterproof casing diameter, and waterproof casing creeps into drill bit and inserts in the boring.
Be described further below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a general arrangement of the present invention
Fig. 2 is a related drilling tool sectional drawing of the present invention
Fig. 3 is the drill bit schematic diagram
1. waterproof casings wherein, 2. drill bit, 3. hook, 4. boring, 5. power station, 6. hose winch, 7. cable winch, 8. power hose bundle, 9. wirerope, 10. assembly pulley, 11. the mud face, 12. waters surface, 13. Platform Decks, 14. overcurrent swivel joints, 15. hydraulic motors, 16. saddle weight, 17. retaining wall rings, 18. limits are turned round bar, 19. spacing rings, 20. gas tube, 21. diffusing compression ring pipes, 22. grout pipes, 23. reamers, 24. centre drill, 25. knife plates, 26. hydraulic cylinders, 27. springs.
The specific embodiment
Represented as Fig. 1～3, realize that according to this invention the device that this method reflected is illustrated with reference numbers.Waterproof casing (1) hangs on platform and bores on the hook (3) of (repairing) well machine.For ease of installing and using drilling tool, be convenient to return slurry and grouting, pipeline need be handled or set up to waterproof casing lower end and outer wall especially.Waterproof casing (1) lower end inwall is provided with four vertical uniform limits and turns round bar (18) and spacing ring (19) together, and opposing is positioned over the rotation torque of drilling tool wherein, and defines drilling tool extreme lower position in waterproof casing; Waterproof casing (1) one retaining wall ring of lower end outer wall setting (17), a gas tube (20), a diffusing compression ring pipe (21) and a grout pipe (22); retaining wall ring (17) has the effect of finishing and protection hole wall; gas tube (20) and diffusing compression ring pipe (21) are used for gaslift plasma discharge air feed, and grout pipe (22) is reserved for the grouting operation.
Borer system is made up of drilling tool, power station (5), hoisting gear (6) (7), power hose bundle (8) and the pressure of the drill, brill position monitoring meter (not marking), and forms brill strand, two subsystems of plasma discharge.Bore the hybrid system that the strand system dashes two cover systems by power auger strand and waterpower spray, the plasma discharge system is hydraulic pressure and gaslift dual-purpose scheme.
Drilling tool comprise the drill bit (2) that destroys the soil body, with water under high pressure be transported to drill bit overcurrent swivel head (14), the hydraulic motor (15) that drill bit rotates, the saddle weight (16) that provides drill bit to bury the pressure of the drill are provided.Drill bit (2) is formed one by centre drill (24) and reamer (23) two parts, it is characterized in that reamer (23) drives hydraulic cylinder (26) by spray bath flowing pressure knife plate (25) is opened, after disappearing, hydraulic pressure rely on spring (27) that knife plate (25) is resetted, the rotating diameter of knife plate (25) when opening is slightly larger than waterproof casing (1) external diameter and equals the external diameter of retaining wall ring (17), guarantee boring (4) diameter greater than waterproof casing (1) external diameter, the side friction when making waterproof casing (1) insert boring (4) is near 0; The rotating diameter of knife plate (25) when resetting is slightly less than waterproof casing (1) internal diameter, and the assurance drilling tool can be mentioned recovery in waterproof casing (1).Hydraulic Station, the gas station that the required gas of gaslift plasma discharge is provided that the hydraulic motor rotational power is provided, the low pressure water station that provides spray to break through the high pressure water station of soil and provide annular space instead to starch are provided power station (5).Hoisting gear comprises cable winch (7) that is used for the handling drilling system and the hose winch (6) that is used for the folding and unfolding hose bundle.Power hose bundle (8) comprises the hydraulic hose that connects Hydraulic Station and hydraulic motor, is connected the water supply hose that air compressor machine and waterproof casing are accompanied the air supply hose of pipe, are connected drilling tool and high pressure water station.Drill bit is monitored by the monitoring meter the pressure of the drill of soil, and the pressure of the drill monitoring meter adopts the hydraulic pressure tensiometer, and the hydraulic pressure tensiometer adopts a hydraulic cylinder to connect a far defeated flexible pipe and a pressure meter, but the value of thrust direct-reading; Drill bit is monitored by the lining rope method with respect to the position of waterproof casing (1).
The operating procedure that the immersed tube of waterproof casing (1) pierces method is: A, arrange that according to Fig. 1 waterproof casing (1) is hung by platform workover rig hook (3).After drilling tool connects power hose bundle (8) and wirerope (9), hang in the waterproof casing and be placed on the waterproof casing bottom spacing ring (19), drill bit (2) is positioned at waterproof casing (1) bottom with upper/lower positions.The assembly pulley (10) that power hose bundle (8) and wirerope (9) are walked around respectively under the hook (3) is wrapped on hose winch (6) and the cable winch (7), and the power hose bundle (8) of hose winch (6) is connected with corresponding power station (5) respectively.B, debugging borer system.Start power station (5) (comprising Hydraulic Station, high pressure water station), drill bit this moment (2) rotation and inject high pressure water, reamer (23) knife plate (25) under the driving of water under high pressure is overhanging.C, pierce immersed tube.Hook (3) is hung waterproof casing and is slowly transferred, and behind the drill bit contact soil, provides the pressure of the drill boring of breaking ground by saddle weight, and bore diameter is greater than the waterproof casing external diameter, and waterproof casing (1) pierces and inserts in the boring (4) with drill bit (2).Start gas station and low pressure water station afterwards, help drilling slurry to be discharged to more than the mud face (11) from the space between waterproof casing (1) and the boring (4).Insert (1) to projected depth by this operation up to waterproof casing.D, drilling tool reclaim.Close power station, the rotation and the jet of drill bit (2) stop, the knife plate (25) of reamer (23) bounces back under the effect of spring, and cable winch (7) and hose winch (6) reclaim wirerope (9) and power hose bundle (8), and drilling tool is regained from waterproof casing (1).E, grouting operation.The grout pipe (22) that waterproof casing (1) outer wall is reserved is connected with grout pump on the platform by flexible pipe, pumps into cement mortar to the waterproof casing (1) and the space of holing between (4), returns to mud face (11) bottom the space up to cement mortar.
Claims (5)
1. a waterproof casing mounting method---immersed tube pierces method, the drill bit that it is characterized in that borer system is positioned at bottom, waterproof casing bottom, slowly transfer by the waterproof casing that platform workover rig hook is hung, drill bit break ground boring slightly larger in diameter in the waterproof casing external diameter, waterproof casing creeps into drill bit and inserts in the boring, up to projected depth.
2. borer system according to claim 1, at least form by drilling tool, power station, hoisting gear, power hose bundle and the pressure of the drill, brill position monitoring meter, and form and bore strand, two subsystems of plasma discharge, it is characterized in that boring the hybrid system that the strand system dashes two cover systems by power auger strand and waterpower spray, the plasma discharge system is hydraulic pressure and gaslift dual-purpose scheme.
3. waterproof casing according to claim 1; it is characterized in that in its bottom and limit that outer wall has been set up opposing drilling tool rotary torque is turned round bar, defined the retaining wall ring of spacing ring, finishing and the effect of protection hole wall of drilling tool extreme lower position in waterproof casing, the gas tube that is used for gaslift plasma discharge air feed and diffusing compression ring pipe, and the grout pipe of reserving for the grouting operation.
4. drilling tool according to claim 2 by the drill bit that destroys the soil body, with water under high pressure be transported to drill bit the overcurrent swivel head, the hydraulic motor that drill bit rotates, the saddle weight that provides drill bit to bury the pressure of the drill are provided, it is characterized in that drilling tool is positioned at the waterproof casing bottom, wherein drill bit is positioned at outside the waterproof casing, and remainder is positioned at waterproof casing.
5. drill bit according to claim 4, form one by centre drill and reamer two parts, it is characterized in that reamer drives hydraulic cylinder by spray bath flowing pressure knife plate is opened, after disappearing, hydraulic pressure rely on spring that knife plate is resetted, rotating diameter when knife plate opens is slightly larger than the waterproof casing external diameter and equals the external diameter of retaining wall ring, guarantee bore diameter greater than the waterproof casing external diameter, the side friction when making waterproof casing insert boring is near 0; Rotating diameter when knife plate resets is slightly less than the waterproof casing internal diameter, and the assurance drilling tool can be mentioned recovery in waterproof casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100153290A CN101126304A (en) | 2006-08-15 | 2006-08-15 | Waterproof casing mounting method-immersed tube drilling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100153290A CN101126304A (en) | 2006-08-15 | 2006-08-15 | Waterproof casing mounting method-immersed tube drilling method |
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| Publication Number | Publication Date |
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| CN101126304A true CN101126304A (en) | 2008-02-20 |
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| CNA2006100153290A Withdrawn CN101126304A (en) | 2006-08-15 | 2006-08-15 | Waterproof casing mounting method-immersed tube drilling method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871321A (en) * | 2009-08-30 | 2010-10-27 | 天津市海王星海上工程技术有限公司 | Mounting method-immersed tube drilling method of drill conductor |
| CN102086766A (en) * | 2009-12-08 | 2011-06-08 | 鞍钢集团矿业公司 | Drilling machine tool special for opencast mining rotary drill rig and using method thereof |
| CN102606132A (en) * | 2012-03-13 | 2012-07-25 | 濮阳市百福瑞德石油科技有限公司 | Automatic grouting control method and automatic grouting control system in trip-up operation for oil drilling |
| CN103261568A (en) * | 2010-08-20 | 2013-08-21 | 质量干预科学院 | Well repair |
| CN105545215A (en) * | 2016-01-11 | 2016-05-04 | 安徽理工大学 | Drill bit for broken stratum drilling |
| CN108457596A (en) * | 2018-04-11 | 2018-08-28 | 煤炭工业合肥设计研究院有限责任公司 | It is a kind of to bore Self-sinking type borehole wall guard system certainly |
| CN109930993A (en) * | 2019-04-22 | 2019-06-25 | 北京城建勘测设计研究院有限责任公司 | A kind of pebble layer tube well dewatering well formation device and construction method |
| CN110566126A (en) * | 2019-09-23 | 2019-12-13 | 贵州黔西能源开发有限公司 | Method for casing running in long-distance directional drilling |
| CN110656890A (en) * | 2019-10-16 | 2020-01-07 | 中铁大桥勘测设计院集团有限公司 | Deepwater geological drilling casing, casing hoisting system and casing hoisting method |
| CN111005675A (en) * | 2019-12-18 | 2020-04-14 | 鲁德昊 | Self-sinking drilling equipment |
| CN112709538A (en) * | 2020-12-29 | 2021-04-27 | 中国电建集团中南勘测设计研究院有限公司 | Hole bottom power drilling double-layer isolation sleeve pipe following system and process |
| CN114016919A (en) * | 2021-10-25 | 2022-02-08 | 中国煤炭地质总局水文地质工程地质环境地质勘查院 | Method for installing underground roof drilling sleeve |
-
2006
- 2006-08-15 CN CNA2006100153290A patent/CN101126304A/en not_active Withdrawn
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871321A (en) * | 2009-08-30 | 2010-10-27 | 天津市海王星海上工程技术有限公司 | Mounting method-immersed tube drilling method of drill conductor |
| CN102086766A (en) * | 2009-12-08 | 2011-06-08 | 鞍钢集团矿业公司 | Drilling machine tool special for opencast mining rotary drill rig and using method thereof |
| CN102086766B (en) * | 2009-12-08 | 2012-12-19 | 鞍钢集团矿业公司 | Drilling machine tool special for opencast mining rotary drill rig and using method thereof |
| CN103261568A (en) * | 2010-08-20 | 2013-08-21 | 质量干预科学院 | Well repair |
| EP3173572A3 (en) * | 2010-08-20 | 2017-10-11 | Quality Intervention AS | Well intervention |
| CN102606132A (en) * | 2012-03-13 | 2012-07-25 | 濮阳市百福瑞德石油科技有限公司 | Automatic grouting control method and automatic grouting control system in trip-up operation for oil drilling |
| CN102606132B (en) * | 2012-03-13 | 2014-09-17 | 濮阳市百福瑞德石油科技有限公司 | Automatic grouting control method and automatic grouting control system in trip-up operation for oil drilling |
| CN105545215A (en) * | 2016-01-11 | 2016-05-04 | 安徽理工大学 | Drill bit for broken stratum drilling |
| CN108457596A (en) * | 2018-04-11 | 2018-08-28 | 煤炭工业合肥设计研究院有限责任公司 | It is a kind of to bore Self-sinking type borehole wall guard system certainly |
| CN109930993A (en) * | 2019-04-22 | 2019-06-25 | 北京城建勘测设计研究院有限责任公司 | A kind of pebble layer tube well dewatering well formation device and construction method |
| CN110566126A (en) * | 2019-09-23 | 2019-12-13 | 贵州黔西能源开发有限公司 | Method for casing running in long-distance directional drilling |
| CN110566126B (en) * | 2019-09-23 | 2021-05-14 | 贵州黔西能源开发有限公司 | Method for casing running in long-distance directional drilling |
| CN110656890A (en) * | 2019-10-16 | 2020-01-07 | 中铁大桥勘测设计院集团有限公司 | Deepwater geological drilling casing, casing hoisting system and casing hoisting method |
| CN111005675A (en) * | 2019-12-18 | 2020-04-14 | 鲁德昊 | Self-sinking drilling equipment |
| CN111005675B (en) * | 2019-12-18 | 2021-02-19 | 鲁德昊 | Self-sinking drilling equipment |
| CN112709538A (en) * | 2020-12-29 | 2021-04-27 | 中国电建集团中南勘测设计研究院有限公司 | Hole bottom power drilling double-layer isolation sleeve pipe following system and process |
| CN112709538B (en) * | 2020-12-29 | 2023-11-07 | 中国电建集团中南勘测设计研究院有限公司 | Double-layer isolation sleeve following pipe system and process for hole bottom power drilling |
| CN114016919A (en) * | 2021-10-25 | 2022-02-08 | 中国煤炭地质总局水文地质工程地质环境地质勘查院 | Method for installing underground roof drilling sleeve |
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