CN2584807Y - Pressure retaining thermal insulation core extracting pipe for natrual gas hydrate at deep water shallow hole station - Google Patents
Pressure retaining thermal insulation core extracting pipe for natrual gas hydrate at deep water shallow hole station Download PDFInfo
- Publication number
- CN2584807Y CN2584807Y CN 02255626 CN02255626U CN2584807Y CN 2584807 Y CN2584807 Y CN 2584807Y CN 02255626 CN02255626 CN 02255626 CN 02255626 U CN02255626 U CN 02255626U CN 2584807 Y CN2584807 Y CN 2584807Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- utility
- model
- pressure
- gas hydrate
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000009413 insulation Methods 0.000 title claims description 7
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 150000004677 hydrates Chemical class 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 6
- 239000011435 rock Substances 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a pressure retaining, heat insulating and core extracting pipe for natural gas hydrate at a deep water shallow hole station. The utility model comprises steel pipes, and the external surface of the utility model is provided with a heat insulating layer and a pressure stabilizer. The utility model is characterized in that the utility model is provided with a plurality of segments of steel pipes, and the contiguous steel pipes are connected by flanges. Each connecting position, and the upper end and the lower end of the whole steel pipe are all provided with ball valves. The upper end of the pipe of the upper segment is provided with an end cover, the pressure stabilizer is arranged above the end cover, the upper part of the pressure stabilizer is provided with an active force hydraulic device, the external surface of the top part is sheathed with a stop base, and the upper surface of the top part is provided with a water cooling device. The external surface of the pipe of the lower segment is provided with a locking and positioning base, the lower surface of the locking and positioning base is connected with a rock core cutting device and a flushing device communicated with the steel pipes. The utility model can satisfy the needs of the drilling construction of an in-situ sampling drill for the natural gas hydrate at the deep water shallow hole station, and the utility model can realize the pressure retaining, the heat insulating, and the core extracting drilling of the natural gas hydrate under the conditions of deep sea (300-3000m) and a shallow hole (50m). The utility model has the advantages of good heat insulating property and excellent pressure retaining property. The total length of the core extracting pipe is 50m, and the total power is about 40 kw.
Description
Technical field
The utility model relates to a kind of pipe of coring of drilling usefulness, and particularly relates to a kind of gas hydrates deep water shallow bore hole pressure-maintaining and heat-preservation pipe of coring.
Technical background
At present, for technical datas such as the latent amount that accurately ascertains deep-sea shallow layer gas hydrate resource, physicochemical characteristics, aspect the drill sampling operation of gas hydrates, Japan has developed and the pipe of coring at the matching used pressure-maintaining and heat-preservation of ODP plan (ODP) drilling ship, this long steel pipe of Guan Youyi 3m of coring, there is insulation layer the outside, and this steel pipe top connects a nitrogen accumulator, in order to reach the purpose of heat-insulation pressure keeping.It is a kind of recovery type inner tube, is transferred by rope during use.Still for vacancy, shortcoming is that the length of tube of coring is little to this pipe of coring, and must use simultaneously with ODP special surveying ship again, therefore can not satisfy the needs of China's natural gas hydrate deep-sea expedition sampling in China.
Summary of the invention
Order of the present utility model provides a kind of gas hydrates deep water shallow bore hole pressure-maintaining and heat-preservation pipe of coring, and it can overcome the above-mentioned shortcoming of the existing pipe of coring.
A kind of gas hydrates deep water shallow bore hole pressure-maintaining and heat-preservation pipe of coring, steel pipe is arranged, and there is insulation layer the outside, and stable-pressure device is arranged, it is characterized in that having the multistage steel pipe, connect with flange between the adjacent steel pipe, at the upper and lower end of each junction and whole steel pipe ball valve is housed all, there is end cap the upper end of epimere pipe, stable-pressure device is equipped with in the top of end cap, the active force hydraulic means is equipped with on the latter's top, and outside, top suit one stopping seat is equipped with chilled water unit above the top; The locking positioning pedestal is equipped with in the hypomere tube outside, the latter's following connection one core shearing device, and flusher is communicated with steel pipe.
The utility model can satisfy the needs of deep-sea shallow bore hole gas hydrate fidelity Sampling driller drilling operation, can realize the deep-sea (300～3000m), the pressure-maintaining and heat-preservation core drilling of gas hydrates under shallow bore hole (50m) condition, heat-insulating property: 1 ℃/24 hours; Pressure maintaining performance: 0.1Mpa/24 hour; Get core diameter: φ 65; Guan length overall: 50m cores; Gross weight: about 52000kg; General power: about 40kw.
The description of drawings and the specific embodiment
Accompanying drawing is a structural representation of the present utility model.
The integral body of the present utility model pipe of coring is divided into 5 sections from top to bottom, makes by bearing the steel pipe 2 of pressing in the 30Mpa for every section, and seal ball-valve 1 is equipped with in upper and lower side that it is whole and intersegmental junction.Steel pipe 2 internal diameters are φ 65mm, every segment length 10m, and 50m is long altogether.Connecting of adjacent each section by flange.There is end cap 14 upper end of epimere pipe 13, stable-pressure device 3 is equipped with in the top of end cap 14, active force hydraulic means 11 is equipped with on the latter's top, outside, top suit one stopping seat 7, chilled water unit 12 is housed above the top, locking positioning pedestal 5 is equipped with in hypomere pipe 8 outsides, the latter's following connection core shearing device 6.Flusher 4 is communicated with steel pipe 2.End cap 14 is connected with stable-pressure device 3 by pipeline, upper end hydraulic control ball valve 1.This stable-pressure device 3 is made up of vacuum tank and respective line, valve.There is insulation layer 9 each steel pipe 2 outside, and the latter selects the butyl rubber layer for use, can be that 3000m considers that its thickness is about 100mm by maximum working depth directly with the external surface of its sulfuration at steel pipe 2 and ball valve 1.Butyl rubber layer external application stainless (steel) wire is made topping 10.
When using the utility model, on workboat a certain amount of water is injected in stable-pressure device 3 lower floors, nitrogen is poured on the upper strata, the pressure when nitrogen pressure is used when coring, close pressure maintaining valve, admission valve, the water injection valve of stable-pressure device 3, draining valve is opened into full-gear.The core upper and lower end ball valve 1 of pipe of all each sections all is opened into full-gear.Originally core pipe and put into seawater of assembling piecemeal by winch.After the pipe of originally coring has been got the heart, cut off rock core by hydraulic-driven rock core shearing device 6.By flusher 4 seawater is blown in the pipe of coring by standby rock core blow device subsequently, the rock chip purge in the seal ball-valve of lower end is clean, close the lower end seal ball-valve by hydraulic-driven then, close the upper end draining valve, open pressure maintaining valve.
In mentioning in the process of this corer, the temperature of core is kept by rubber insulation layer 9; Pressure is kept by stable-pressure device 3.Originally after the pipe of coring hung on workboat, close the ball sealer 1 at each steel pipe 2 two ends piecemeal, and unclamp every section connecting flange, every section pipe of having got core is put into assigned address finishes and deposit and carry out correlative study.
Claims (1)
1, a kind of gas hydrates deep water shallow bore hole pressure-maintaining and heat-preservation pipe of coring has steel pipe (2), the outside
Insulation layer (9) is arranged, stable-pressure device (3) is arranged, it is characterized in that having multistage steel pipe (2), adjacent steel
Connect with flange between the pipe (2), equal at the upper and lower end of each junction and whole steel pipe (2)
Ball valve (1) is housed, and there is end cap (14) upper end of epimere pipe (13), the top dress of end cap (14)
Stable-pressure device (3) is arranged, and active force hydraulic means (11) is equipped with on the latter's top, the outside, top
Suit one stopping seat (7) is equipped with chilled water unit (12) above the top, hypomere pipe (8) outside
Locking positioning pedestal (5) is housed, and the latter's following connection one core shearing device (6) dashes
Cleaning device (4) is communicated with steel pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255626 CN2584807Y (en) | 2002-11-29 | 2002-11-29 | Pressure retaining thermal insulation core extracting pipe for natrual gas hydrate at deep water shallow hole station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02255626 CN2584807Y (en) | 2002-11-29 | 2002-11-29 | Pressure retaining thermal insulation core extracting pipe for natrual gas hydrate at deep water shallow hole station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584807Y true CN2584807Y (en) | 2003-11-05 |
Family
ID=33724078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02255626 Expired - Fee Related CN2584807Y (en) | 2002-11-29 | 2002-11-29 | Pressure retaining thermal insulation core extracting pipe for natrual gas hydrate at deep water shallow hole station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584807Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639416B (en) * | 2009-08-31 | 2011-05-25 | 合肥通用机械研究院 | On-line solid sampling device |
| CN104179469A (en) * | 2014-08-07 | 2014-12-03 | 中国海洋石油总公司 | Active pressure maintaining and coring tool and use method thereof |
| CN105143594A (en) * | 2013-01-21 | 2015-12-09 | 自然环境研究委员会 | Determining gas content of a core sample |
| CN106351597A (en) * | 2016-11-17 | 2017-01-25 | 湖南科技大学 | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill |
| CN110552644A (en) * | 2019-10-05 | 2019-12-10 | 中国石油大学(华东) | In-situ coal rock heat-preservation pressure-maintaining coring device and application method |
| CN112012685A (en) * | 2020-10-11 | 2020-12-01 | 东北石油大学 | Horizontal well in-situ monitoring fidelity continuous coring tool |
-
2002
- 2002-11-29 CN CN 02255626 patent/CN2584807Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639416B (en) * | 2009-08-31 | 2011-05-25 | 合肥通用机械研究院 | On-line solid sampling device |
| CN105143594A (en) * | 2013-01-21 | 2015-12-09 | 自然环境研究委员会 | Determining gas content of a core sample |
| CN104179469A (en) * | 2014-08-07 | 2014-12-03 | 中国海洋石油总公司 | Active pressure maintaining and coring tool and use method thereof |
| CN104179469B (en) * | 2014-08-07 | 2017-01-25 | 中国海洋石油总公司 | Active pressure maintaining and coring tool and use method thereof |
| CN106351597A (en) * | 2016-11-17 | 2017-01-25 | 湖南科技大学 | Natural gas hydrate pressure retaining rope coring drill applicable to submarine drill |
| CN110552644A (en) * | 2019-10-05 | 2019-12-10 | 中国石油大学(华东) | In-situ coal rock heat-preservation pressure-maintaining coring device and application method |
| CN110552644B (en) * | 2019-10-05 | 2024-01-23 | 中国石油大学(华东) | In-situ coal rock heat-preserving pressure-maintaining coring device and application method |
| CN112012685A (en) * | 2020-10-11 | 2020-12-01 | 东北石油大学 | Horizontal well in-situ monitoring fidelity continuous coring tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204663496U (en) | A kind of canned pair of down-hole electric submersible pump producing tubular column | |
| WO2006101606B1 (en) | Method for running tubulars in wellbores | |
| CN111520110B (en) | Supercritical CO of horizontal well2Method and system for developing enhanced geothermal energy by fracturing | |
| CN2584807Y (en) | Pressure retaining thermal insulation core extracting pipe for natrual gas hydrate at deep water shallow hole station | |
| CN101210483B (en) | Continuous sand flushing technique and continuous sand flushing device thereof | |
| AU2008342468B2 (en) | Submarine device | |
| CN106320983A (en) | Method and device for running casing in ultra-deep water whiling drilling | |
| CN111411912A (en) | Fireflooding formation well drilling and coring method and well drilling and coring device thereof | |
| US11702889B2 (en) | Maritime drilling with fluid reverse circulation without using drilling riser | |
| CN205858311U (en) | A kind of bore hole staged fracturing completion tubular column | |
| CN2740765Y (en) | Fidelity sampling drilling tool | |
| CN204532070U (en) | A kind of well system based on subsea pump pressure control | |
| CN110485969A (en) | A kind of device and its Completion of Drilling Hole method for exploiting dry-hot-rock geothermal resource | |
| CN101338658B (en) | Hermetic electric submersible pump production completion system capable of proceeding steel wire operation | |
| CN206627305U (en) | Seabed refrigerating and pressure keeping formula gravity piston sampler | |
| CN205743734U (en) | The built-in oil drill rocker of oil pipe | |
| WO2021240121A1 (en) | Storing and extracting thermal energy in a hydrocarbon well | |
| CN111270994A (en) | Casing running process and device for deep sea riser-free pipe following drilling | |
| CN206429196U (en) | A kind of ultra-deep-water is with the cased device of brill | |
| CN205445495U (en) | Novel high elasticity petroleum casing pipe | |
| CN102116148A (en) | Machine exploitation test pipe string for floating drilling rig | |
| CN212774166U (en) | Well drilling barrel suitable for shallow well completion | |
| CN204899857U (en) | Geothermal well is with high temperature resistant multi -functional floating valve | |
| CN102654023A (en) | Main and auxiliary underwater system for deepwater drilling and setting method thereof | |
| CN113622832A (en) | Offshore thermal recovery external cable electric submersible pump injection-production integrated pipe column and operation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |