CN1470737A - Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits - Google Patents
Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits Download PDFInfo
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- CN1470737A CN1470737A CNA021359350A CN02135935A CN1470737A CN 1470737 A CN1470737 A CN 1470737A CN A021359350 A CNA021359350 A CN A021359350A CN 02135935 A CN02135935 A CN 02135935A CN 1470737 A CN1470737 A CN 1470737A
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Abstract
The present invention relates to a natural gas hydrate deep-water shallow-hole pressure-maintaining heat-insulating core drilling equipment, it has a pressure maintaining heat-insulating core pipe, its lower portion is equipped with a core drilling bit connected with a drilling bit driving device. Over the core pipe there is connector for bearing cable under which there is a supporting frame of drilling equipment, and deep-sea sealed pressure-maintained electric control device is mounted in inner side of near bottom portion of drilling equipment machine frame. Said supporting frame of drilling equipment has several leveling hydraulic cylinders with supporting action and supporting arms, and between supporting arms and locking-positioning base seat they are connected by means of flanges.
Description
Technical field
The present invention relates to a kind of core drill of drilling usefulness, particularly relate to a kind of natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits.
Technical background
At present, in order to accurately ascertain technical datas such as the latent amount of deep-sea shallow layer gas hydrate resource, physicochemical characteristic, in the drill sampling operation of gas hydrates, developed and the matching used pressure-maintaining and heat-preservation core drill of ODP plan (ODP) drilling ship, this column drill has the long steel pipe of a 3m, there is insulation layer the outside, connects a nitrogen accumulator on this steel pipe, in order to reach the purpose of heat-insulation pressure keeping.Drill bit is equipped with in the bottom of this steel pipe, is rock core drilling tool in a kind of recovery type.Transfer by rope during use.The shortcoming of this core drill is only to be applicable to the following sea water advanced probing of 100m, this drilling tool is so far through nearly 30 years updating, once in water, transferred and reclaimed with the parts of a kind of being called " lifting sealed compartment " in early days, changed the tube head that drilling tool is contained in steel pipe afterwards again into, place at the bottom of the shallow sea, realize probing by steel pipe, but still can not satisfy the requirement that drills through the gas hydrates water sample from the 1000m depths.
Summary of the invention.
The purpose of this invention is to provide a kind of natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits, it can overcome the above-mentioned shortcoming of existing core drill.
A kind of natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits, the pressure-maintaining and heat-preservation pipe of coring is arranged, one core bit is arranged below this pipe of coring, the latter connects a drill bit drive unit, it is characterized in that above the pipe of coring, having the connector of a carrying cable, there is a drilling tool support below, a deep-sea sealing pressurize electric control gear is installed in the nearly bottom inside of drilling tool frame, this drilling tool support has many passive leveling hydraulic cylinders and support arm, same number of diagonal brace hydraulic cylinder is set on the support arm, the two connects with hinge, is connected with flange between support arm and the locking positioning pedestal.
The present invention can satisfy the needs of deep-sea shallow bore hole gas hydrate fidelity sample boring construction, 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; Corer is long: 50m; Gross weight: about 52000kg; General power :～40kw.Simultaneously, this drilling tool also can be used for the evaluation of guarantor " very " drill sampling and construction coring operation of other multiple oceanic mineral resources.
The description of drawings and the specific embodiment
Accompanying drawing 1 is a structural representation of the present invention.
Accompanying drawing 2 is the structural representation of its pipe of coring.
This natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits have a pressure-maintaining and heat-preservation core the pipe 2, below this pipe 2 of coring a core bit 6 is arranged, the latter connects a drill bit drive unit 5, it is characterized in that above the pipe 2 of coring, having the connector 1 of a carrying cable, there is a drilling tool frame 3 below, a deep-sea sealing pressurize electric control gear 4 is installed in the nearly bottom inside of drilling tool frame 3, this drilling tool frame 3 has four passive leveling hydraulic cylinders 7 and support arm 8, four diagonal brace hydraulic cylinders 10 are set on the support arm 8, the two connects with hinge, is connected with flange between support arm 8 and the locking positioning pedestal 9.The described pipe 2 of coring has steel pipe 12, there is insulation layer 19 outside, stable-pressure device 13 is arranged, it is characterized in that having multistage steel pipe 12, connect with flange between the adjacent steel pipe 12, upper and lower end at each junction and whole steel pipe 12 all is equipped with ball valve 11, there is end cap 24 upper end of epimere pipe 23, stable-pressure device 13 is equipped with in the top of end cap 24, active force hydraulic means 21 is equipped with on the latter's top, and outside, top suit one stopping seat 17 is equipped with chilled water unit 22 above the top, locking positioning pedestal 15 is equipped with in hypomere pipe 18 outsides, rock core shearing device 16 is housed below the latter.Flusher 14 is communicated with steel pipe 12.During use, core pipe 2, core bit 6, drill bit drive unit 5 of pressure-maintaining and heat-preservation is contained in the foursquare drilling tool frame 3, can oscilaltion in drilling tool frame 3, and the coring bit 6 relative corers 2 of bottom rotate, thus realize that pressure-maintaining and heat-preservation corer drilling tool gets core and mention function.Characteristics of the present invention have:
1), the pressure-maintaining and heat-preservation pipe of coring utilizes electric energy to finish the type of drive of lifting and drill sampling;
2), drilling tool attitude levelling mode---when pressure-maintaining and heat-preservation drilling tool during near the seabed, start support hydraulic pressure system Hydraulic Station, driving four diagonal brace hydraulic cylinders 10 of drilling tool frame opens four support arms 8, after whole drilling tool frame 3 touches the seabed, leveling hydraulic cylinder 7 by four support arm 8 ends carries out leveling again, makes drilling tool frame 3 be in level.At this moment, pressure-maintaining and heat-preservation is cored pipe 2 and drilling tool frame 3 by mechanical interlocking method lock jail, prevents that whole coring apparatus pressure-maintaining and heat-preservation in the process of hanging pipe 2 string drilling tool frame 3 in of coring from moving.Drilling tool frame 3 tops have the permanent tension force of carrying cable and surface mother ship to be connected;
3), drilling tool frame 3 is the girder structure, is divided into three, following two or five parts, the technology of segmentation combination (the pipe 2-that on surface mother ship drilling tool frame 3 and pressure-maintaining and heat-preservation cored contains system pipeline and assembles piecemeal).
Claims (2)
1, a kind of natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits, the pressure-maintaining and heat-preservation pipe (2) of coring is arranged, below this pipe (2) of coring a core bit (6) is arranged, the latter connects a drill bit drive unit (5), it is characterized in that having the connector (1) of a carrying cable in the top of the pipe (2) of coring, there is a drilling tool frame (3) below, a deep-sea sealing pressurize electric control gear (4) is installed in the nearly bottom inside of drilling tool frame (3), this drilling tool frame (3) has many passive leveling hydraulic cylinders (7) and support arm (8), same number of diagonal brace hydraulic cylinder (10) is set on the support arm (8), the two connects with hinge, is connected with flange between support arm (8) and the locking positioning pedestal (9).
2, core drill as claimed in claim 1, it is characterized in that the described pipe (2) of coring has multistage steel pipe (12), there is insulation layer (19) outside, stable-pressure device (13) is arranged, adjacent steel pipe connects with flange between (12), on each junction and whole steel pipe (12), ball valve (11) all is equipped with in the lower end, there is end cap (24) upper end of epimere pipe (23), stable-pressure device (13) is equipped with in the top of end cap (24), active force hydraulic means (21) is equipped with on the latter's top, outside, top suit one stopping seat (17), chilled water unit (22) is housed above the top, hypomere pipe (18) outside is equipped with and rock core shearing device (16) is housed below the locking positioning pedestal (15), and flusher (14) is communicated with steel pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021359350A CN1470737A (en) | 2002-11-29 | 2002-11-29 | Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021359350A CN1470737A (en) | 2002-11-29 | 2002-11-29 | Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1470737A true CN1470737A (en) | 2004-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA021359350A Pending CN1470737A (en) | 2002-11-29 | 2002-11-29 | Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits |
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| CN (1) | CN1470737A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798924A (en) * | 2010-03-25 | 2010-08-11 | 吉林大学 | Icebound type pressure-maintaining and temperature-preserving sampler |
| CN102383723A (en) * | 2011-07-12 | 2012-03-21 | 中国地质大学（武汉） | Seabed type conical investigating and drilling integrated machine |
| CN102494428A (en) * | 2011-12-06 | 2012-06-13 | 吉林大学 | Hydraulic down-hole refrigerator |
| CN102913162A (en) * | 2012-10-26 | 2013-02-06 | 宝鸡石油机械有限责任公司 | Deep-sea sediment continuous pressure maintaining coring submarine drilling machine and operation method |
| 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 |
| CN105909202A (en) * | 2016-07-05 | 2016-08-31 | 中交第四航务工程勘察设计院有限公司 | Coring drilling tool based on hydraulic clamping coring |
| CN106441980A (en) * | 2015-08-07 | 2017-02-22 | 中国石油化工股份有限公司 | Rock sample coring device |
| CN112160727A (en) * | 2020-10-19 | 2021-01-01 | 高俊亭 | Directional rope core drill |
-
2002
- 2002-11-29 CN CNA021359350A patent/CN1470737A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798924B (en) * | 2010-03-25 | 2013-08-21 | 吉林大学 | Icebound type pressure-maintaining and temperature-preserving sampler |
| CN101798924A (en) * | 2010-03-25 | 2010-08-11 | 吉林大学 | Icebound type pressure-maintaining and temperature-preserving sampler |
| CN102383723A (en) * | 2011-07-12 | 2012-03-21 | 中国地质大学（武汉） | Seabed type conical investigating and drilling integrated machine |
| CN102383723B (en) * | 2011-07-12 | 2013-06-19 | 中国地质大学（武汉） | Seabed type conical investigating and drilling integrated machine |
| CN102494428A (en) * | 2011-12-06 | 2012-06-13 | 吉林大学 | Hydraulic down-hole refrigerator |
| CN102913162A (en) * | 2012-10-26 | 2013-02-06 | 宝鸡石油机械有限责任公司 | Deep-sea sediment continuous pressure maintaining coring submarine drilling machine and operation method |
| 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 |
| CN106441980A (en) * | 2015-08-07 | 2017-02-22 | 中国石油化工股份有限公司 | Rock sample coring device |
| CN106441980B (en) * | 2015-08-07 | 2018-11-23 | 中国石油化工股份有限公司 | Rock sample coring device |
| CN105909202A (en) * | 2016-07-05 | 2016-08-31 | 中交第四航务工程勘察设计院有限公司 | Coring drilling tool based on hydraulic clamping coring |
| CN112160727A (en) * | 2020-10-19 | 2021-01-01 | 高俊亭 | Directional rope core drill |
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