CN2740765Y - Fidelity sampling drilling tool - Google Patents

Fidelity sampling drilling tool Download PDF

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Publication number
CN2740765Y
CN2740765Y CN 200420091976 CN200420091976U CN2740765Y CN 2740765 Y CN2740765 Y CN 2740765Y CN 200420091976 CN200420091976 CN 200420091976 CN 200420091976 U CN200420091976 U CN 200420091976U CN 2740765 Y CN2740765 Y CN 2740765Y
Authority
CN
China
Prior art keywords
pipe
joint
socket
ball valve
rock core
Prior art date
Application number
CN 200420091976
Other languages
Chinese (zh)
Inventor
张永勤
孙建华
黎毅力
Original Assignee
地质矿产部勘探技术研究所
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Filing date
Publication date
Application filed by 地质矿产部勘探技术研究所 filed Critical 地质矿产部勘探技术研究所
Priority to CN 200420091976 priority Critical patent/CN2740765Y/en
Application granted granted Critical
Publication of CN2740765Y publication Critical patent/CN2740765Y/en

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Abstract

The utility model relates to a fidelity sampling drilling tool, belonging to the technical field of the device for abstracting the primary geological sample in the geology prospecting exploration, used for solving the problem that the ball valve of the existing sampling device has complicated close structure, low fidelity reliability, and high matching application cost, comprising an outer pipe, a centralizer, a bit upper short, a coring bit, an outer connection shaft, a central single acting mechanism, a central short, an external draining water inlet steel sleeve, a ring piston, a toothed bar, a ball valve, a gear, a ball body, and a coring bit. A steel ball is mounted on a guiding valve flow guiding side steering mounted in the pipe on the lower part of the outer joint through an inner single acting mechanism, and the lower part of the outer joint is provided with an inter channel; the upper end of the inner connection shaft is connected with the inner single acting mechanism, and the lower part is connected with a pressure compensation device; the upper end of the multichannel distributary joint is connected with the pressure compensation device, and the lower end is connected with a rock core containing pipe; the multichannel distributary joint is provided with a backwater ball valve, a channel, a hydraulic overflowing hole, and a pressure compensation hole; the rock core containing pipe is connected with a rock core clip base; the outer joint and an inner joint are provided with water holes; the water inlet steel sleeve is provided with backwater holes. The fidelity sampling drilling tool can be widely applied for abstracting the primary sample in the geology analyzation and the prospecting.

Description

The fidelity sampling boring tool
Technical field
The utility model relates to extraction primitive rock center device in a kind of geological prospecting, particularly a kind of fidelity sampling boring tool that is used for gas hydrates.
Background technology
Population increase, social development and progressive increasing to the demand of the energy, but the reserves of oil, natural gas and coal in the earth are limited, and if can not find the new energy of taking over, following human survival will face serious threat.Scientist finds that through continuous exploratory development benthos and permafrost haorizon inside, land exist a kind of energy---gas hydrates of huge energy.Through scientist's preresearch estimates, the 2-3 that the energy of ocean and land permafrost haorizon internal water compound is equivalent to verify petroleum gas and coal energy doubly.China scientist has also found gas hydrates in the relevant marine site of China, and the total amount of the relevant gas hydrates of prediction China is equivalent to 1-1.5 that China verified oil, natural gas and coal energy summation doubly.Scientist thinks that gas hydrates very likely become the following human novel type energy of taking over.At present the estimation of hydrate is just predicted the hydrate total amount according to relevant Detection Techniques and theory.Want really to determine the actual reserves of hydrate, also must obtain the primary sample of hydrate by the method for drill sampling.Because special living environment and the mechanism of gas hydrates, be subjected to the influence of environmental change responsive especially, particularly temperature and the pressure when hydrate existence changes, hydrate will decompose, if can not adopt a kind of hydrate sample drilling tool device that can keep reset condition in the core drilling work progress, not only can not take out real sample, influence authentic assessment, also might cause serious natural calamity the various parameters of hydrate.For the actual requirement of satisfying the hydrate investigation and surveying, needing that invention is a kind of can be with the use that matches of existing oil drilling drilling rod, rig, and can take out the drive sampling device of initial condition laminate samples, so that satisfy hydrate sample boring construction requirement as early as possible.In addition, China is formulating and is setting up new coal base planning at present, for quality and the real content of understanding coal bed gas more accurately, also needs a kind of assurance sample boring device.
Having the ball valve closing motion that extracts the primitive rock center device in geological prospecting at present, is by adopting the gravity mode or realizing by the fishing device drive associated mechanisms on the face of land.There is that structure is very complicated, the fidelity reliability is low and use the high problem of supporting cost.
Summary of the invention
The utility model overcomes shortcoming of the prior art, and a kind of simple in structure, fidelity reliability height, simple to operate, easy to utilize and supporting, fidelity sampling boring tool that cost is low are provided.
In order to solve the problem of above-mentioned technology, the utility model is achieved through the following technical solutions: the fidelity sampling boring tool is by outer tube, centralizer, short circuit on the drill bit, core bit, outer connecting shaft, centre single action mechanism, middle short circuit, efflux into water steel bushing, annular piston, tooth bar, ball valve, gear, spheroid, core bit is formed, wherein steel ball is contained in guiding valve water conservancy diversion side steering top, guiding valve water conservancy diversion side steering is contained in the pipe of socket bottom by the connector in the interior single action mechanism, the socket bottom is provided with internal channel, interior connecting shaft is connected with interior single action mechanism by connector upper end, the lower end is connected with pressure compensator, many reduction of fractions to a common denominator stream joints are connected with pressure compensator by the connector upper end, the lower end is connected with the rock core containing pipe, many reduction of fractions to a common denominator stream joints bottom is provided with backwater ball valve and passage and hydraulic pressure flowing hole, rock core containing pipe lower end is connected with core spring and clip spring seat by connector, socket and the spigot corresponding with guiding valve water conservancy diversion side steering are provided with the circulation of drilling fluid hydrophthalmia, and the water inlet steel bushing corresponding with many reduction of fractions to a common denominator stream joints is provided with backwater hole.
The utility model also can be achieved through the following technical solutions: be provided with between above-mentioned socket and spigot and be in axial sliding connection part.
The utility model can also be achieved through the following technical solutions: be provided with screw thread in above-mentioned socket upper end.
Compared with prior art, the beneficial effects of the utility model are: drilling tool structure is simple, reliable, does not need special-purpose drilling rod and equipment, and use cost simple to operate, supporting is low, easy to utilize, for hydrate and coal bed gas probing fidelity sampling provides more simple and reliable technological means.
Description of drawings
Fig. 1 is the utility model top water mechanism sectional drawing.
Fig. 2 is the utility model middle part single action mechanism sectional drawing.
Fig. 3 be the utility model middle part accumulator operating principle and advance, backwater diffluence mechanism sectional drawing.
Fig. 4 is portion's ball valve of following step of the utility model mechanism's sectional drawing of closing and core.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail: the gastight sampling drilling tool is exceptionally piping, middle piping, interior piping and ball valve closing organ three parts mainly.Outer piping is made up of short circuit 23, core bit 30 etc. on spigot 2, outer tube 4, centralizer 20, the drill bit.Middle piping is made up of socket 1, outer connecting shaft 7, middle single action mechanism 11, middle short circuit 12, outer draining steel bushing 16, annular piston 25, tooth bar 26, ball valve 27, gear 28 etc.Interior piping is made up of steel ball 3, guiding valve water conservancy diversion side steering 5, interior single action mechanism 8, interior connecting shaft 10, pressure compensator 14, many reduction of fractions to a common denominators stream joint 17, backwater ball valve and passage 19, rock core containing pipe 24, core spring and clip spring seat 29 etc.The socket 1 of drilling tool upper end can be processed into screw thread with its adapted according to the drilling rod that is connected, so that be connected with the oil drill rocker or the geologic drilling rod of employed all size.
With can be lowered to boring after employed oil drill rocker or geologic drilling rod are connected, and open the pumps water cleaning bottom of hole and creep into, without any need for other special implements and equipment.
In going down process, wouldn't throw in steel ball 3.Under bore or carry in the brill process, socket 1 is thrown off certain distance up and down with spigot 2.Bore if in going down process, need to carry under the flushing liquor cleaning bottom of hole, can flushing liquor be returned to the aperture in drilling rod (the external splines upper end connects), hydrophthalmia 6, outer annular space 13 arrival core bits 30 and boring and the circulation of outer tube annular space turn on pump.After drilling tool arrived at the bottom of the hole, socket 1 moved down also and spigot 2 meshes fully, and core spring and clip spring seat 29 move down and pass the interior shoulder that ball valve 27 arrives core bits 30.Can carry flushing liquor to begin normal core-drilling by turn on pump this moment.The water of rock core containing pipe 24 process back-water valve (BWV) and passage 19, backwater hole 18 enter outer annular space 13 in the drilling process, have guaranteed normally to creep into rock core to enter rock core containing pipe 24 smoothly.The pressure of the drill in the drilling process, moment of torsion male and female spline and outer tube 4, centralizer 20, drill bit top connection etc. by socket 1 and spigot 2 passes to core bit 30.
Need carry when drilling through the heart (sample) creeping into certain depth, carry drilling rod and drive socket 1 and spigot 2 between spline slide piping up certain distance earlier in making relatively.Piping core spring and clip spring seat 29 bottom was up to the upper end of ball valve system spheroid 31 and do not influence 90 ° of spheroid rotations in the distance of sliding between socket 1 and the spigot 2 was enough to make, and reliably closed to cause ball valve 27.When interior piping was up, the disconnected device of core spring and card can guarantee that the rock core card is disconnected, and makes rock core be up to the upper end of spheroid 31 with jump ring and clip spring seat 29.In order to close ball valve 27, must manage to make the spheroid 31 in the ball valve to rotate 90 °.It is descending that can utilize drill-in fluid to promote annular piston 25 this moment, and make the spheroid rotation reach the purpose of closing ball valve 27 by tooth bar 26, gear 28.In order drilling fluid to be played promote annular piston 25 descending and close the purpose of ball valve 27, through the inner steel ball 3 that drops into of drilling rod, start slush pump then and utilize drilling rod in drilling tool, to carry drilling fluid at well head.After the steel ball 3 that drops into arrives guiding valve water conservancy diversion side steering 5, make that the circulation canal of drill-in fluid stopped up when originally normally creeping into, force guiding valve descending, change the circulation canal of original drilling fluid, drilling fluid annular space 22 in the hydraulic pressure flowing hole 21 of guiding valve water conservancy diversion side steering 5, internal channel 9, many reduction of fractions to a common denominators stream joint 17 reaches arrives annular pistons 25, under the pressure effect of drill-in fluid, it is descending to promote annular piston 25, and spheroid 31 rotations that promote ball valve 27 by tooth bar 26 and gear 28 are closed ball valve 27 for 90 °.Carry drilling rod make in after the up certain distance of piping, corresponding drain hole is closed thereupon on many reduction of fractions to a common denominators stream joints 17.Pressure compensator one end communicates with rock core containing pipe 24, and communicates with seawater.At the bottom of the hole time, the seawater water column pressure forces the piston compression of pressure compensator 14, and keeps equilibrium pressure with water column at the bottom of the hole.When ball valve 27 was closed in the seabed, 24 of rock core containing pipes communicated by ftercompction hole 15 with pressure compensator 14, and the pressure in the rock core containing pipe 24 and pressure compensation are adorned 14 to put interior pressure consistent.After promoting drilling rod and drilling tool rising certain distance, the external pressure of rock core containing pipe 24 changes with the depth of water and reduces, along with carrying on drilling rod and the drilling tool, rock core containing pipe 24 inside and outside pressure reduction increase, if this moment, relevant junction or ball valve sealing place revealed, the energy that stores in the pressure compensator 14 begin to expand (because in the pressure compensator preliminary filling liquid nitrogen of certain pressure), and in rock core containing pipe 24, replenish certain pressure, to reach the purpose that keeps rock core containing pipe 24 internal pressures.After drilling tool is mentioned the face of land or is bored on the boat deck, lay down the top connection of coring bit 30 and coring bit 30 upper ends, ball valve 27 lower ends of piping in the middle of the drilling tool are connected with ready prepd sample collection device by screw thread, open ball valve then, sample in the rock core containing pipe 24 is transferred in the sample collection device, promptly reach the purpose of sample boring.Again with in the hand-hole under drilling tool and the drilling rod, repeat said process subsequently, continue drilling construction.More than be the basic functional principle of this novel practical drilling tool.

Claims (3)

1, a kind of fidelity sampling boring tool that is used for geological prospecting, be by outer tube (4), centralizer (20), short circuit on the drill bit (23), core bit (30), outer connecting shaft (7), middle single action mechanism (11), middle short circuit (12), efflux into water steel bushing (16), annular piston (25), tooth bar (26), ball valve (27), gear (28), spheroid (31) and core bit (30) are formed, it is characterized in that steel ball (3) is contained on the guiding valve water conservancy diversion side steering (5), guiding valve water conservancy diversion side steering (5) is contained in the pipe of socket (1) bottom by the connector in the interior single action mechanism (8), socket (1) bottom is provided with internal channel (9), interior connecting shaft (10) is connected with interior single action mechanism (8) by the connector upper end, the lower end is connected with pressure compensator (14), interior connecting shaft (10) bottom is provided with ftercompction hole (15), many reduction of fractions to a common denominator stream joints (17) are connected with pressure compensator (14) by the connector upper end, the lower end is connected with rock core containing pipe (24), many reduction of fractions to a common denominator stream joints (17) bottom is provided with backwater ball valve and passage (19) and hydraulic pressure flowing hole (21), rock core containing pipe (24) lower end is connected with core spring and clip spring seat (29) by connector, socket (1) and the spigot (2) corresponding with guiding valve water conservancy diversion side steering (5) are provided with hydrophthalmia (6), and the water inlet steel bushing (16) corresponding with many reduction of fractions to a common denominator stream joints (17) is provided with backwater hole (18).
2, fidelity sampling boring tool as claimed in claim 1 is characterized in that being provided with between socket (1) and the spigot (2) and is in axial sliding connection part.
3, fidelity sampling boring tool as claimed in claim 1 or 2 is characterized in that socket (1) upper end is provided with screw thread.
CN 200420091976 2004-10-22 2004-10-22 Fidelity sampling drilling tool CN2740765Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420091976 CN2740765Y (en) 2004-10-22 2004-10-22 Fidelity sampling drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420091976 CN2740765Y (en) 2004-10-22 2004-10-22 Fidelity sampling drilling tool

Publications (1)

Publication Number Publication Date
CN2740765Y true CN2740765Y (en) 2005-11-16

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101308062B (en) * 2008-02-19 2011-08-17 华北科技学院 Self sealed self decompressed coal seam sampling method and apparatus
CN102322225A (en) * 2011-05-18 2012-01-18 中水北方勘测设计研究有限责任公司 Drilling tool for drilling and sampling complex stratum
CN105089534A (en) * 2015-08-27 2015-11-25 淮北矿业(集团)勘探工程有限责任公司 Coring device
CN107288565A (en) * 2017-07-28 2017-10-24 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool
CN108756796A (en) * 2018-05-30 2018-11-06 广州海洋地质调查局 Drilling at the sea coring drilling with keep up pressure method
CN109751003A (en) * 2019-03-01 2019-05-14 广州海洋地质调查局 The safety-type rotary coring drilling with keep up pressure method of drilling at the sea
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
CN110043210A (en) * 2019-05-05 2019-07-23 三峡大学 Rock body drilled samples stress fidelity device and method under a kind of high-ground stress
CN110513050A (en) * 2019-09-30 2019-11-29 于燕 Move compensation drill bit device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101308062B (en) * 2008-02-19 2011-08-17 华北科技学院 Self sealed self decompressed coal seam sampling method and apparatus
CN102322225A (en) * 2011-05-18 2012-01-18 中水北方勘测设计研究有限责任公司 Drilling tool for drilling and sampling complex stratum
CN105089534A (en) * 2015-08-27 2015-11-25 淮北矿业(集团)勘探工程有限责任公司 Coring device
CN107288565A (en) * 2017-07-28 2017-10-24 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool
CN107288565B (en) * 2017-07-28 2018-11-20 中国地质科学院勘探技术研究所 A kind of sea bed gas hydrate rock core coring drilling with keep up pressure drilling tool
CN108756796A (en) * 2018-05-30 2018-11-06 广州海洋地质调查局 Drilling at the sea coring drilling with keep up pressure method
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
CN109751003A (en) * 2019-03-01 2019-05-14 广州海洋地质调查局 The safety-type rotary coring drilling with keep up pressure method of drilling at the sea
CN110043210A (en) * 2019-05-05 2019-07-23 三峡大学 Rock body drilled samples stress fidelity device and method under a kind of high-ground stress
CN110043210B (en) * 2019-05-05 2021-05-04 三峡大学 Rock mass drilling sampling stress fidelity device and method under high ground stress
CN110513050A (en) * 2019-09-30 2019-11-29 于燕 Move compensation drill bit device
CN110513050B (en) * 2019-09-30 2021-01-26 胜利油田盛辉石油技术开发有限责任公司 Movable compensation type drill bit device

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C19 Lapse of patent right due to non-payment of the annual fee
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