CN110318700A - A kind of double lance ropes of double hook are sent into and marine salvage equipment - Google Patents
A kind of double lance ropes of double hook are sent into and marine salvage equipment Download PDFInfo
- Publication number
- CN110318700A CN110318700A CN201910651361.5A CN201910651361A CN110318700A CN 110318700 A CN110318700 A CN 110318700A CN 201910651361 A CN201910651361 A CN 201910651361A CN 110318700 A CN110318700 A CN 110318700A
- Authority
- CN
- China
- Prior art keywords
- card
- card pipe
- wire line
- fishing
- bearing
- 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.)
- Granted
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Abstract
The present invention relates to the technical fields of wire line coring can control connection types by the double lances of double hook, realize the differential movement of two-tube corer more particularly to a kind of double lance ropes feedings of double hook and marine salvage equipment；Including running tool part, fishing tool part and salvaged part, running tool part includes the first wirerope, the first wire line thimble, first bearing, the first nut, first axle bearing sleeve, connecting-rod body and the first off card pipe, further includes two groups of running tool recovery hooks, the first spring, the first pin shaft and running tool guide cup；Fishing tool part includes the second wirerope, the second wire line thimble, second bearing set, second bearing, the second nut, the fishing tool body of rod, two groups of fishing tool recovery hooks, second spring, the second pin shaft and fishing tool guide cup；Salvaged part includes the first spear-head, corer recovery hook, third spring, third pin shaft, the second spear-head, off card pipe fitting and the second off card pipe.
Description
Technical field
The present invention relates to the technical fields of wire line coring, are sent into more particularly to a kind of double lance ropes of double hook and set with salvaging
It is standby.
Background technique
Two-tube corer is the CORING TECHNOLOGY generally used, while being also applied to wire line coring field.Wire line coring is wanted
Seeking the ball valve of corer front end, perhaps plate valve opens basket and passes through ball valve or plate valve；After completing round trip coring, basket is wanted
Ask be recycled to corer front end ball valve perhaps it is more than plate valve could solid ball valve or plate valve close.Therefore wire line coring device mentions
It realizes that the two-tube difference under different operating conditions of corer transports function for reliable, convenient and fast method, is this field urgent problem.
Summary of the invention
In order to solve the above technical problems, the present invention, which provides one kind, can control connection type by the double lances of double hook, realize double
The double lance ropes of the double hook of the differential movement of pipe corer are sent into and marine salvage equipment.
A kind of double lance ropes of double hook of the invention are sent into and marine salvage equipment, including running tool part, fishing tool part
With salvaged part, the running tool part includes the first wirerope, the first wire line thimble, first bearing, the first nut, the
One bearing holder (housing, cover), connecting-rod body and the first off card pipe, first wirerope one end are fixedly connected with the first wire line thimble, and described
One bearing is fixedly mounted in first axle bearing sleeve, and the first wirerope ring pads are inserted into first axle bearing sleeve, and the first steel
Cord ring lower half region passes through and is fixed on first bearing inner wall, and the first nut spiral shell is filled to the first wire line thimble bottom,
The connecting-rod body top is connect with first axle bearing sleeve bottom end, the first off card pipe can along the first wirerope from well head according to
Set is launched by gravity to be filled to outside connecting-rod body, and running tool part and the salvaged running tool that partially breaks off relations can be completed
Part further includes two groups of running tool recovery hooks, the first spring, the first pin shaft and running tool guide cup, two groups of feeding works
Tool recovery hook middle section be rotatably connected by the first pin shaft, first spring left and right ends respectively with two groups of running tools
The connection of recovery hook upper half area, and two groups of running tool recovery hook lower half regions are respectively positioned in running tool guide cup, it is described
Two groups of running tool recovery hook upper half areas are respectively positioned in the first off card pipe；
The fishing tool part includes the second wirerope, the second wire line thimble, second bearing set, second bearing, second
Nut, the fishing tool body of rod, two groups of fishing tool recovery hooks, second spring, the second pin shaft and fishing tool guide cup, described
Two wirerope one end are fixedly connected with the second wire line thimble, and the second bearing is fixedly mounted in second bearing set, and described the
Two wirerope ring pads are inserted into second bearing set, and the second wire line thimble lower half region passes through and is fixed in second bearing
On wall, the second nut spiral shell is filled to the second wire line thimble bottom, and fishing tool body of rod top and second bearing cover bottom end
Connection, two groups of fishing tool recovery hook middle sections are rotatably connected by the second pin shaft, described second spring or so two
End is connect with two groups of fishing tool recovery hook upper half areas respectively, and the fishing tool guide cup is located at two groups of fishing tools and salvages
Hook lower zone；
The salvaged part includes the first spear-head, corer recovery hook, third spring, third pin shaft, second dozen
Fishing spearhead, off card pipe fitting and the second off card pipe, first spear-head top are inserted into running tool guide cup or salvaging
In tool guide cup and between running tool recovery hook or fishing tool recovery hook, the corer recovery hook middle section
It is rotatably connected by third pin shaft, third spring left and right ends are connect with corer recovery hook upper half area respectively, institute
It states off card pipe fitting and is mounted on the second off card tube top portion, second spear-head is located in the second off card pipe, and second dozen
Spearhead top is fished out between corer recovery hook, it is oblique that the first long sliding slot, long sliding slot are provided on the second off card inside pipe wall
Section and off card barrel bolt eye further include resilient key, bullet card pedestal, support card pipe, adapter coupling, bullet card, mention skirt, hanging ring, seat
Long sliding hole is provided on ring, the support card pipe, resilient key is fixedly mounted in the off card barrel bolt eye of the second off card pipe lower end, mentions and drawing
Pin eye is provided on pipe, resilient key passes through the pin eye for mentioning skirt and protrudes into the long sliding hole of support card pipe, and the skirt that mentions is inserted into
It holds in the palm in card pipe, support card pipe is inserted into the second off card pipe with bullet card pedestal, and the bullet card pedestal is contacted with the fixation of the second off card pipe, institute
It states the second spear-head bottom end to contact with the fixation of bullet card pedestal, the hanging ring is mounted on support card bottom of the tube, and hangs ring seat
It hangs on the seat ring of outer tube, the bullet card is mounted on bullet card pedestal inner cavity, and from off card pipe first sliding groove, elasticity is stretched out outward, is thrown
It puts to shaft bottom seat card bullet card and is contacted with adapter coupling, complete round trip coring and salvage off card, the second off card pipe above mentions oblique to long sliding slot
Section is contacted with bullet card, and the gathering of bullet card is disengaged with adapter coupling.
Compared with prior art the invention has the benefit that
1, by the recovery hook of running tool or fishing tool it is different from the first, second fishing spear of corer connection,
Unhook mode is realized that corer is sent into and is moved with the successive triggering for salvaging internal different institutions；
2, it will integrally launch and be sent into shaft bottom, the second fishing spear is arranged in the first fishing spear of coring tool, running tool handle takes
Heart device be sent into bottom hole, the lower part weight of corer successively from bullet card pedestal be transferred to the second fishing spear of corer, the second recovery hook,
First fishing spear, running tool part, wirerope；
3, it will integrally be thrown to shaft bottom and sit card, after corer is fed through hole pedestal card, put into the first off card pipe, the first off card
Pipe slides along wirerope under gravity, after sliding to connecting-rod body, continues to slide impact running tool recovery hook, be sent into
Tool recovery hook top half is squeezed into the first off card pipe, is unclamped running tool recovery hook and is connected with the first spear-head
It connects, running tool and corer disengage at this time, after recycling running tool to well head by wirerope, connect drilling rod and carry out round trip time
Turn coring；
4, complete round trip coring, launch fishing tool, under the guidance of fishing tool guide cup, fishing tool recovery hook with
The connection of the first fishing spear of coring tool, while fishing tool guide cup squeezes coring tool recovery hook, makes coring tool recovery hook
It is disengaged with the second fishing spear of coring tool, lifts wirerope, fishing tool, which mentions, draws the first fishing spear of coring tool, while driving the
Two off card pipes move up.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of running tool part and salvaged part connection in the present invention；
Fig. 2 is the schematic cross-section of A-A and B-B in Fig. 1；
Fig. 3 is the structural schematic diagram of fishing tool part and salvaged part connection in the present invention；
Fig. 4 is the schematic diagram that the present invention is thrown to shaft bottom when in use；
Fig. 5 is that the present invention is thrown to shaft bottom seat card when in use, and the first off card pipe downslide connecting-rod body simultaneously impacts feeding work
Has the schematic diagram of recovery hook；
Fig. 6 is in the use of the present invention, the schematic diagram that running tool and corer disengage；
Fig. 7 is in the use of the present invention, completion round trip coring, launches the schematic diagram that fisher is salvaged；
Fig. 8 is in the use of the present invention, completing round trip coring, and dispensing fisher salvages the structural schematic diagram of off card state；
It is attached marked in the figure: the 21, first wirerope；221, the first wire line thimble；222, first bearing；223, the first nut；
224, first axle bearing sleeve；225, connecting-rod body；226, the first off card pipe；227, running tool recovery hook；2271, the first spring；
2272, the first pin shaft；228, running tool guide cup；231, the first spear-head；232, corer recovery hook；2321, third
Spring；2322, third pin shaft；233, off card pipe fitting；234, the second off card pipe；2341, long sliding slot；2342, long sliding slot bevel
Face；2343, off card barrel bolt eye；235, resilient key；241, the second spear-head；242, bullet card pedestal；243, support card pipe；2431,
Long sliding hole；251, adapter coupling；252, bullet card；261, skirt is mentioned；2611, eye is sold；271, hanging ring；272, seat ring；31, second
Wirerope；321, the second wire line thimble；322, second bearing set；323, second bearing；324, the second nut；325, fishing tool
The body of rod；326, fishing tool recovery hook；327, fishing tool guide cup；328, second spring；329, the second pin shaft.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figures 1 to 8, a kind of double lance ropes feedings of double hook of the invention and marine salvage equipment, including running tool portion
Divide, fishing tool part and salvaged part, running tool part include the first wirerope 21, the first wire line thimble 221, first
Bearing 222, the first nut 223, first axle bearing sleeve 224, connecting-rod body 225 and the first off card pipe 226,21 one end of the first wirerope
It is fixedly connected with the first wire line thimble 221, first bearing 222 is fixedly mounted in first axle bearing sleeve 224, the first wire line thimble
221 pads are inserted into first axle bearing sleeve 224, and 221 lower half region of the first wire line thimble passes through and is fixed to first bearing 222
On inner wall, 223 spiral shell of the first nut is filled to 221 bottom of the first wire line thimble, 225 top of connecting-rod body and first axle bearing sleeve
The connection of 224 bottom ends, the first off card pipe 226 can launch the set company of being filled to by gravity from well head along the first wirerope (21)
Outside extension bar body 225, it further includes two groups of feedings that running tool part and salvaged part unhook running tool part, which can be completed,
Tool recovery hook 227, the first spring 2271, the first pin shaft 2272 and running tool guide cup 228, two groups of running tool recovery hooks
227 middle sections are rotatably connected by the first pin shaft 2272,2271 left and right ends of the first spring respectively with two groups of running tools
The connection of 227 upper half area of recovery hook, and two groups of 227 lower half regions of running tool recovery hook are respectively positioned on running tool guide cup
In 228；
Fishing tool part includes the second wirerope 31, the second wire line thimble 321, second bearing set 322, second bearing
323, the second nut 324,325, two groups of fishing tool recovery hooks 326 of the fishing tool body of rod, second spring 328, the second pin shaft 329
With fishing tool guide cup 327,31 one end of the second wirerope is fixedly connected with the second wire line thimble 321, and second bearing 323 is fixed
It is mounted in second bearing set 322, the second wire line thimble 321 pad is inserted into second bearing set 322, and the second wire line thimble
321 lower half regions pass through and are fixed on 323 inner wall of second bearing, and 324 spiral shell of the second nut is filled to 321 bottom of the second wire line thimble
Portion, 325 top of the fishing tool body of rod cover 322 bottom ends with second bearing and connect, and two groups of 326 middle sections of fishing tool recovery hook are logical
The second pin shaft 329 is crossed to be rotatably connected, 328 left and right ends of second spring respectively with two groups of 326 upper halfs of fishing tool recovery hook
Domain connection, fishing tool guide cup 327 are located at two groups of 326 lower zones of fishing tool recovery hook；
Salvaged part includes the first spear-head 231, corer recovery hook 232, third spring 2321, third pin shaft
2322, the second spear-head 241, off card pipe fitting 233 and the second off card pipe 234,231 top of the first spear-head, which is inserted into, to be sent
Enter in tool guide cup 2210 or fishing tool guide cup 327 and is located at running tool recovery hook 229 or fishing tool recovery hook
Between 326,232 middle section of corer recovery hook is rotatably connected by third pin shaft 2322, third spring 2321 or so two
End is connect with 232 upper half area of corer recovery hook respectively, and off card pipe fitting 233 is mounted at the top of the second off card pipe 234, and second
Spear-head 241 is located in the second off card pipe 234, and 241 top of the second spear-head be located at corer recovery hook 232 it
Between, it is provided with long sliding slot 2341, long sliding slot oblique section 2342 and off card barrel bolt eye 2343 on 234 inner wall of the second off card pipe, also wraps
It includes resilient key 235, bullet card pedestal 242, support card pipe 243, adapter coupling 251, bullet card 252, mention skirt 261, hanging ring 271, seat
It is provided with long sliding hole 2431 on ring 272, support card pipe 243, resilient key 235 is fixedly mounted on the off card of 234 lower end of the second off card pipe
It in barrel bolt eye 2343, mentions and is provided with pin eye 2611 on skirt 261, resilient key 235 passes through the pin eye 2611 for mentioning skirt 261 and protrudes into
The first long 2431 He of sliding slot for holding in the palm card pipe 243 mentions skirt 261 and is inserted into support card pipe 243, support card pipe 243 and bullet card pedestal 242
It is inserted into off card pipe 243, bullet card pedestal 242 is contacted with the fixation of off card pipe 243,241 bottom end of the second spear-head and bullet card pedestal
242 fixed contacts, hanging ring 271 are mounted on support 243 bottom of card pipe, and on hanging ring 271 seat rings 272 for hanging over outer tube,
Bullet card 252 is mounted on 242 inner cavity of bullet card pedestal, and from off card pipe range sliding slot 2341, elasticity is stretched out outward, is thrown to shaft bottom and is sat card
Bullet card 252 is contacted with adapter coupling 251, is completed round trip coring and is salvaged off card, off card pipe 234 is above mentioned to long sliding slot oblique section 2342
It is contacted with bullet card 252, the gathering of bullet card 252 is disengaged with adapter coupling.
By the connection different from the first, second fishing spear of corer of the recovery hook of running tool or fishing tool, take off
Hook mode is realized that corer is sent into and is moved with the successive triggering for salvaging internal different institutions；
Whole launch is sent into shaft bottom, is arranged the second fishing spear in the first fishing spear of coring tool, running tool is coring
Device is sent into bottom hole, and the lower part weight of corer is successively transferred to the second fishing spear of corer, the second recovery hook, the from bullet card pedestal
One fishing spear, running tool part, wirerope；
Shaft bottom will be integrally thrown to and sit card, after corer is fed through hole pedestal card, put into the first off card pipe, the first off card pipe
It is slid under gravity along wirerope, after sliding to connecting-rod body, continues to slide impact running tool recovery hook, be sent into work
Tool recovery hook top half is squeezed into the first off card pipe, is unclamped running tool recovery hook and is connect with the first spear-head,
Running tool and corer disengage at this time, after recycling running tool to well head by wirerope, connect drilling rod and carry out round trip revolution
Coring；
Complete round trip coring, launch fishing tool, under the guidance of fishing tool guide cup, fishing tool recovery hook with take
The first fishing spear of the heart tool connection, while fishing tool guide cup squeeze coring tool recovery hook, make coring tool recovery hook with
The second fishing spear of coring tool disengages, and lifts wirerope, and fishing tool, which mentions, draws the first fishing spear of coring tool, while driving second
Off card pipe moves up.
The above is only a 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 improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (1)
1. a kind of double lance ropes of double hook are sent into and marine salvage equipment, which is characterized in that including running tool part, fishing tool part
With salvaged part, the running tool part includes the first wirerope (21), the first wire line thimble (221), first bearing
(222), the first nut (223), first axle bearing sleeve (224), connecting-rod body (225) and the first off card pipe (226), first steel
Cord (21) one end is fixedly connected with the first wire line thimble (221), and the first bearing (222) is fixedly mounted on first axle bearing sleeve
(224) in, the first wire line thimble (221) pad is inserted into first axle bearing sleeve (224), and the first wire line thimble (221)
Lower half region passes through and is fixed on first bearing (222) inner wall, and the first nut (223) spiral shell is filled to the first wire line thimble
(221) bottom, connecting-rod body (225) top are connect with first axle bearing sleeve (224) bottom end, the first off card pipe (226)
Set being launched by gravity from well head along the first wirerope (21) and being filled to connecting-rod body (225) outside, feeding can be completed
Tool portion and salvaged part are broken off relations, and the running tool part further includes two groups of running tool recovery hooks (227), first bullets
Spring (2271), the first pin shaft (2272) and running tool guide cup (228), two groups of running tool recovery hooks (227) center
Region is rotatably connected by the first pin shaft (2272), the first spring (2271) left and right ends respectively with two groups of running tools
The connection of recovery hook (227) upper half area, and two groups of running tool recovery hook (227) lower half regions are respectively positioned on running tool guiding
In cup (228)；
The fishing tool part includes the second wirerope (31), the second wire line thimble (321), second bearing set (322), second
Bearing (323), the second nut (324), the fishing tool body of rod (325), two groups of fishing tool recovery hooks (326), second springs
(328), the second pin shaft (329) and fishing tool guide cup (327), described second wirerope (31) one end and the second wire line thimble
(321) it is fixedly connected, the second bearing (323) is fixedly mounted in second bearing set (322), second wire line thimble
(321) pad is inserted into second bearing set (322), and the second wire line thimble (321) lower half region passes through and is fixed to second
On bearing (323) inner wall, the second nut (324) spiral shell is filled to the second wire line thimble (321) bottom, the fishing tool body of rod
(325) top is connect with second bearing set (322) bottom end, and two groups of fishing tool recovery hooks (326) middle section passes through the
Two pin shafts (329) are rotatably connected, second spring (328) left and right ends respectively with two groups of fishing tool recovery hooks (326)
Upper half area connection, the fishing tool guide cup (327) are located at two groups of fishing tool recovery hook (326) lower zones；
The salvaged part includes the first spear-head (231), corer recovery hook (232), third spring (2321), third
Pin shaft (2322), the second spear-head (241), off card pipe fitting (233) and the second off card pipe (234), first fishing spear
Head (231) top is inserted into running tool guide cup (2210) or fishing tool guide cup (327) and beats positioned at running tool
Between crowfoot (229) or fishing tool recovery hook (326), corer recovery hook (232) middle section passes through third pin shaft
(2322) it is rotatably connected, third spring (2321) left and right ends connect with corer recovery hook (232) upper half area respectively
It connects, the off card pipe fitting (233) is mounted at the top of the second off card pipe (234), and second spear-head (241) is located at second
In off card pipe (234), and the second spear-head (241) top is located between corer recovery hook (232), second off card
It is provided with long sliding slot (2341), long sliding slot oblique section (2342) and off card barrel bolt eye (2343) on pipe (234) inner wall, further includes bullet
Property pin (235), bullet card pedestal (242), support card pipe (243), adapter coupling (251), bullet card (252), mention skirt (261), suspension
Ring (271), seat ring (272) are provided with long sliding hole (2431) on support card pipe (243), and resilient key (235) is fixedly mounted on the
In the off card barrel bolt eye (2343) of two off card pipe (234) lower ends, mentions and be provided with pin eye (2611), resilient key on skirt (261)
(235) the long sliding slot (2431) for mentioning the pin eye (2611) of skirt (261) and protruding into support card pipe (243) is passed through, it is described to mention skirt
(261) it is inserted into support card pipe (243), in support card pipe (243) and bullet card pedestal (242) insertion off card pipe (243), the bullet card
Pedestal (242) blocks pipe (243) fixation with support and contacts, and the second spear-head (241) bottom end connects with bullet card pedestal (242) fixation
Touching, the hanging ring (271) is mounted on support card pipe (243) bottom, and hanging ring (271) seat hangs over the seat ring (272) of outer tube
On, the bullet card (252) is mounted on bullet card pedestal (242) inner cavity, and from off card pipe range sliding slot (2341), elasticity is stretched out outward, is thrown
It puts to shaft bottom seat card bullet card (252) and is contacted with adapter coupling (251), complete round trip coring and salvage off card, off card pipe (234) above mentions
It is contacted to long sliding slot oblique section (2342) with bullet card (252), bullet card (252) gathering is disengaged with adapter coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651361.5A CN110318700B (en) | 2019-07-15 | 2019-07-15 | Double-hook double-spear rope feeding and fishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651361.5A CN110318700B (en) | 2019-07-15 | 2019-07-15 | Double-hook double-spear rope feeding and fishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110318700A true CN110318700A (en) | 2019-10-11 |
| CN110318700B CN110318700B (en) | 2021-06-18 |
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ID=68123950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910651361.5A Active CN110318700B (en) | 2019-07-15 | 2019-07-15 | Double-hook double-spear rope feeding and fishing equipment |
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| Country | Link |
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| CN (1) | CN110318700B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6425449B1 (en) * | 2001-02-08 | 2002-07-30 | Boart Longyear International Holdings, Inc. | Up-hole pump-in core barrel apparatus |
| CN2761803Y (en) * | 2005-01-25 | 2006-03-01 | 中国地质科学院勘探技术研究所 | Impact rotating single-tube follow up drill tool |
| CN102305022A (en) * | 2011-08-12 | 2012-01-04 | 中国地质大学（武汉） | Salvage-type casing pipe drilling tool for drilling |
| CN105156057A (en) * | 2015-07-01 | 2015-12-16 | 吉林大学 | Rope coring positioning suspension mechanism with in-place notifying function |
| CN106761513A (en) * | 2016-12-15 | 2017-05-31 | 中国地质科学院勘探技术研究所 | A kind of rope salvaging type coring drilling with keep up pressure drilling tool |
| CN109854195A (en) * | 2018-12-11 | 2019-06-07 | 广州海洋地质调查局 | The rotary coring drilling with keep up pressure method of drilling at the sea |
-
2019
- 2019-07-15 CN CN201910651361.5A patent/CN110318700B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6425449B1 (en) * | 2001-02-08 | 2002-07-30 | Boart Longyear International Holdings, Inc. | Up-hole pump-in core barrel apparatus |
| CN2761803Y (en) * | 2005-01-25 | 2006-03-01 | 中国地质科学院勘探技术研究所 | Impact rotating single-tube follow up drill tool |
| CN102305022A (en) * | 2011-08-12 | 2012-01-04 | 中国地质大学（武汉） | Salvage-type casing pipe drilling tool for drilling |
| CN105156057A (en) * | 2015-07-01 | 2015-12-16 | 吉林大学 | Rope coring positioning suspension mechanism with in-place notifying function |
| CN106761513A (en) * | 2016-12-15 | 2017-05-31 | 中国地质科学院勘探技术研究所 | A kind of rope salvaging type coring drilling with keep up pressure drilling tool |
| CN109854195A (en) * | 2018-12-11 | 2019-06-07 | 广州海洋地质调查局 | The rotary coring drilling with keep up pressure method of drilling at the sea |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110318700B (en) | 2021-06-18 |
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