CN106441980B - Rock sample coring device - Google Patents
Rock sample coring device Download PDFInfo
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- CN106441980B CN106441980B CN201510484929.0A CN201510484929A CN106441980B CN 106441980 B CN106441980 B CN 106441980B CN 201510484929 A CN201510484929 A CN 201510484929A CN 106441980 B CN106441980 B CN 106441980B
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- rock sample
- cylinder
- accommodation tube
- fixing piece
- coring device
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Abstract
The present invention relates to a kind of rock sample coring device, the accommodation tube including receiving rock sample, and be connected with accommodation tube and the corer in accommodation tube can be extend into, wherein corer can carry out coring to the rock sample in sample accommodating chamber.Using this coring device, the rock sample for estimating natural Gas content more accurately can be provided.
Description
Technical field
The present invention relates to geological exploration and development technical field, a kind of particularly rock sample coring device.
Background technique
In the stratum of such as rammell, it is stored with a large amount of natural gas usually in a manner of adsorbing or dissociate, belongs to non-
Normal gas pools.In shale, the content for the natural gas stored in the form of this is generally higher than 90%, therefore the size of its content is straight
Connect the enrichment degree and development technique for being related to natural gas.
In China, usually obtain the rock sample of rammell by non-closed method, and to this rock sample into
Row detection is to estimate the natural Gas content in stratum.It adsorbs or dissociates during obtaining rock sample, in rock sample
Natural gas, the natural gas for especially adsorbing or dissociating on rock sample surface and its nearby, is easy to escape under the action of pressure drop.
Since rammell is usually relatively deep, the time for obtaining rock sample is longer, therefore this evolution is more serious, so that natural gas
Loss it is larger, and the fluctuation of loss amount is also larger.When estimating the natural gas of loss, this loss, which will lead to, to be estimated
The error of calculation is larger, so that the estimation that will cause the storage capacity of the natural gas in the stratum to such as rammell generates biggish mistake
Difference.This can cause large effect to the further R and D of natural gas.
Therefore, it is necessary to a kind of the device of rock sample can be provided to estimate natural Gas content more accurately.
Summary of the invention
In view of the above-mentioned problems, the invention proposes a kind of rock sample coring device, it can be natural to estimate more accurately
Gas content and rock sample is provided.
The invention proposes a kind of rock sample coring device, the accommodation tube including accommodating rock sample, and with receiving
The corer that cylinder is connected and can extend into accommodation tube, wherein corer can take the rock sample in sample accommodating chamber
Core.
The rock sample coring device proposed through the invention can carry out coring to the rock sample taken out from stratum.
Natural gas inside rock sample is compared with the natural gas on rock sample surface, and loss is less, especially for this tool of shale
For the rock sample for having low porosity and low permeability feature, internal natural gas loss can substantially ignore.It will be from stratum directly
The rock sample of taking-up is put into the intracorporal sample accommodating chamber of cylinder, and is fixed by clamp assemblies.Pass through corer again
Coring is carried out to the rock sample fixed, the less core of natural gas loss amount can be obtained.This core is detected,
The natural Gas content estimated can be made more accurate.
In one embodiment, rock sample coring device further includes the fixing piece being contained in accommodation tube, fixing piece with
One end of rock sample is in contact to fix rock sample.Rock sample is fixed in accommodation tube by fixing piece, it can be effective
Guarantee that rock sample will not be movable in location of the coring procedure, so that going on smoothly for coring process be effectively ensured.
In one embodiment, fixing piece includes the abutting part with the axis perpendicular of accommodation tube, and abutting part can be against rock
To fix rock sample on the surface of stone sample.Rock sample can be against on other fixing pieces by abutting part or accommodation tube
On inner wall, rock sample is fixed in accommodation tube by this structure.
In one embodiment, rock sample coring device further includes prolonging from abutting part towards the side of setting rock sample
The claw stretched, wherein claw and abutting part surround one end of rock sample to fix rock sample.Pass through claw and abutting part one
Contact rock sample is played, rock sample can be more steadily fixed.In addition, abutting part need not be larger to rock sample application at this time
Pressure, thus prevent rock sample and be squeezed and damage.
In one embodiment, fixing piece with the barrel of accommodation tube is sealed contacts.Where capable of making rock sample in this way
Environment sealing, to can prevent rock sample from continuing to outward leakage natural gas during coring.
In one embodiment, there are two fixing piece, two fixing pieces are opposite along the axis of cylinder for setting in accommodation tube
It is arranged to fix rock sample between two fixing pieces.The opposite end of rock sample is capable of fixing by two fixing pieces, from
And energy is more efficient and steadily fixes rock sample.
In one embodiment, at least one of two fixing pieces can be moved along the axis of accommodation tube.Pass through this knot
Structure can be conveniently adjusted position and the size in the space between two fixing pieces, and thus, it is possible to the rock sample progress to sizes
Coring.
In one embodiment, accommodation tube includes that first end is opening and second end is closed cylinder, and and cylinder
First end be connected to close the cover of opening, fixing piece is contained in cylinder.The receiving barrel structure of this structure is simple, and enables
Rock sample can be more easily put into accommodation tube by user.
In one embodiment, two fixing pieces are relatively arranged in cylinder along the axis of cylinder, in cover and apart from cylinder
Cover the locating piece that the position for fixing fixing piece is provided between closer fixing piece.It can be to rock-like by this structure
During product coring, locating piece is effectively fixed, thus, it is possible to effectively fix rock sample.
In one embodiment, rock sample coring device further includes being communicated to the inside of accommodation tube to adjust rock sample
The pressure regulator and/or rock sample coring device of the pressure of the environment at place further include be communicated to the inside of accommodation tube with
Adjust the thermoregulator of the temperature of the environment where rock sample.It can be by the environment where rock sample by pressure regulator
In pressure be adjusted to it is same or similar with the pressure in stratum, to reduce or even eliminate the pressure drop inside and outside rock sample, in turn
The natural gas in rock sample is prevented to escape.The temperature in the environment where rock sample can be adjusted by thermoregulator
It is extremely same or similar with the pressure in stratum, to further prevent the evolution of the natural gas in rock sample.
Compared with the prior art, the advantages of the present invention are as follows：It (1) can be to the rock-like taken out from the stratum of such as shale
Product carry out coring.(2) will be put into sample accommodating chamber from the rock sample directly taken out in stratum, and by clamp assemblies into
Row is fixed.Coring is carried out to the rock sample fixed by corer again, the less core of natural gas loss amount can be obtained.
(3) this core is detected, the natural Gas content estimated can be made more accurate.It (4) is unconventional gas reservoir, especially
The exploration engineering application of natural Gas content in shale gas reservoir provides reliable technological means, has relatively economical, just and greatly
The advantages that measuring examination, application prospect are optimistic.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 shows the overall structure diagram of one embodiment of rock sample coring device of the invention.
Fig. 2 shows the structural schematic diagram in the rock sample coring device by rock sample load map 1.
Fig. 3 shows the overall structure diagram of another embodiment of rock sample coring device of the invention.
Fig. 4 shows the structural schematic diagram in the rock sample coring device by rock sample load map 3.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 schematically shows the whole knot of rock sample coring device 10 (hereinafter referred to as device 10) of the invention
Structure.Device 10 includes the accommodation tube for accommodating rock sample 20.Accommodation tube includes cylinder 11 and the cover that is connected with cylinder 11
12.The first end 111 of cylinder 11 be opening, second end 112 be it is closed, cover 12 be arranged at first end 111 with cylinder
Body 11 surrounds rock sample 20 together, provides the sample accommodating chamber 30 for being suitable for coring for rock sample 20.
Preferably, cover with cylinder is sealed is connected, so as to make the pressure in accommodation tube keep certain, Jin Erneng
So that the pressure in accommodation tube is leveled off to the pressure in rock sample, thus reduces the pressure drop inside and outside rock sample, prevent rock-like
Natural gas in product further escapes.For example, accommodation tube can be closed pressure maintaining case.
Device 10 further includes the corer 17 that can be extended in sample accommodating chamber 30.It can be to rock sample by corer 17
20 carry out coring, to obtain core.
Due to the rock sample of rock sample, especially shale, need to take out from deeper stratum, therefore in taking-up
The natural gas that rock sample is included in the process easily escapes under the action of pressure drop, to can make the rock sample detected
There is very big error in natural gas storage amount.But the natural gas inside rock sample is compared with the natural gas on rock sample surface,
It is not easy to escape.Has the characteristics that the rock of low porosity and low permeability especially for such as shale is this, although the rock sample table of acquirement
Face and its neighbouring natural gas have biggish loss, but the natural gas inside rock sample can be remained preferably,
Loss amount is negligible.To this rock sample coring, it is smaller and even negligible that natural gas loss amount can be obtained
Core, thus, it is possible to the detection accuracy of natural gas storage amount is effectively ensured.This first aspect is due in above-mentioned rock sample
The natural gas loss amount in portion is lower.Second aspect be due to, it is shorter to the process of rock sample coring, core face and its near
Natural gas also have not enough time to escape, can start to have detected.The third aspect, this is because core is one of rock sample
Point, therefore its surface area is relatively small, the natural gas of surface losses then can be correspondingly less.Factor in terms of these three is incorporated in
Together, actual natural Gas content when ensure that the natural Gas content of the core detected closer in stratum existing for it.
Device 10 further includes the fixing piece being arranged in accommodation tube, and fixing piece is surrounded and formed together with the inner wall of accommodation tube
Sample accommodating chamber 30, rock sample energy fixture are fixed in sample accommodating chamber 30.
In the embodiment shown in fig. 1, a fixing piece 13 is provided only in accommodation tube (cylinder 11).Fixing piece 13 wraps
Include the abutting part 131 perpendicular to the axis of cylinder 11.After rock sample 20 is encased in cylinder 11, abutting part can be passed through
131 are against rock sample 20 on the inner wall of second end 112 of cylinder, to fix rock sample 20 in the axial direction of cylinder.
In addition, when rock sample 20 is against in the second end 112 of cylinder by abutting part 131 with enough power, moreover it is possible to effectively prevent rock
Stone sample 20 is moved along the axially vertical direction with cylinder, to further ensure going on smoothly for location of the coring procedure.
Fixing piece 13 preferably also comprises the claw 132 being connected with abutting part 131.Axis direction of the claw 132 along cylinder
Sample accommodating chamber 30 from abutting part 131 towards setting rock sample 20 extends.After rock sample 20 is put into cylinder,
Claw and abutting part can be respectively contacted on the surface of irrelevancy row of rock sample, and surround one end of rock sample, with more
Add and steadily fixes rock sample.As shown in Figure 1, rock sample 20 is generally cylindrical, and its axis and cylinder 11
Axis is parallel or is overlapped.In the lower section of rock sample 20, claw 131 is set, to hold the peripheral surface of rock sample 20, and
Abutting part 131 is enabled to resist the end face of rock sample 20.Rock sample is fixed on fixing piece 13 and cylinder 11 by this structure
Between, steadily to carry out coring.
Preferably, claw 132 is multiple, circumferentially in the inside of cylinder 11.Such as can as shown in Figure 2 by
Two claws 132 are symmetricly set on the two sides up and down of rock sample, by rock sample be stably fixed at two claws 132 it
Between.It can guarantee that rock sample is not easy to move on the axially vertical direction with cylinder in this way.In addition, can also be along the week of cylinder 11
To other claws 132 are arranged again, to fix rock sample in the other direction.
Especially during being put into rock sample, first rock sample can be clamped between claw 132, then by rock
Sample and fixing piece are put into togerther in cylinder 13, are fixed to it.In this way, can be further ensured that going on smoothly for location of the coring procedure,
It ensure that the integrality of the core of acquirement.The distance between claw 132 and the axis of cylinder be it is adjustable, to adapt to different sizes
Rock sample.
In an embodiment as illustrated in figure 3, fixing piece 14 is additionally provided in cylinder.As shown in figure 3, fixing piece 14 is arranged
Between fixing piece 13 and the second end 112 of cylinder, thus make sample accommodating chamber 30 be formed in fixing piece 13 and fixing piece 14 it
Between.
Fixing piece 14 includes the abutting part 141 perpendicular to the axis of cylinder, and abutting part 141 is oppositely arranged with abutting part 131.
As shown in Figure 4, after rock sample 20 being packed into, the abutting part 131 of fixing piece 13 can be with the abutting part of fixing piece 14
141 are against at the both ends of rock sample 20, and fixed rock sample 20.
As shown in figure 4, fixing piece 14 can also include the claw 142 being connected with abutting part 141.It the structure of claw 142 and sets
It is substantially similar to claw 132 to set mode.Claw 142 is set to abutting part 141 for clamping the side of rock sample, and towards cylinder
The axis of body extends.Claw 142 surrounds the other end of rock sample with abutting part 141 together, more stably to fix rock
Sample.
Preferably, claw 142 is also multiple, circumferentially in the inside of cylinder 11.Such as it can be as shown in Figure 2
Two claws 142 are symmetricly set on to the two sides up and down of rock sample, by rock sample be stably fixed at two claws 142 it
Between.It can guarantee that rock sample is not easy to move on the axially vertical direction with cylinder in this way.In addition, can also be along the week of cylinder 11
To other claws 132 are arranged again, to fix rock sample in the other direction.
When rock sample to be put into cylinder, first rock sample can be sandwiched between claw 142, keep its relatively fixed,
Then fixing piece 13 is pushed into again, rock sample is completely fixed.The distance between axis of claw 142 and cylinder is can
It adjusts, to adapt to various sizes of rock sample.
In order to be adapted to various sizes of rock sample, fixing piece 13 can be moved along the axis of cylinder, and be arranged in cylinder
First end and corer 17 between any position at.The position of fixing piece 14 can be fixed, may be alternatively provided as it is variable,
Further to adapt to the size of rock sample.
It, can be in fixing piece 13 and cover 12 in order to guarantee 13 energy effective position of fixing piece when for 20 coring of rock sample
Between be arranged locating piece 15.After fixing rock sample 20 by fixing piece 13, the natural gas in rock sample be will continue to
It is escaped under the action of pressure drop, so that the pressure in cylinder 11 can be increased accordingly, and biggish pressure is generated to fixing piece 13.Such as figure
Locating piece one end shown in 1 to 4 is in contact with cover, and the other end is in contact with fixing piece, so as to using cylinder and cover it
Between strength connection and guarantee fixing piece 13 can be stably maintained at clamping rock sample position.
Preferably, locating piece is scalable locating piece.This locating piece can more easily adapt to various sizes of rock
Sample 20.
As shown in figure 3 or 4, can enable fixing piece 13 and 14 with the circumferential inner sidewall of cylinder 11 is sealed is connected.Specifically,
Can enable abutting part 131 and 141 with the inner wall of cylinder 11 is sealed is connected.Preferably, claw 132 and 142 and cylinder 11 can also be enabled
Inner wall it is sealed be connected.So, natural gas can only escape into the lesser sample accommodating chamber 30 of volume, to make rock
The pressure energy in environment where sample rapidly increases to equal with the gas pressure in rock sample, and then is further reduced
Natural gas loss amount.
In addition, the also settable pressure regulator being connected with sample accommodating chamber, and held sample by pressure regulator
Intracavitary pressure of receiving is adjusted to the pressure that rock sample is subject in the earth formation, thus facilitate and directly eliminate rock sample with
Its pressure drop in the environment.
In a preferred embodiment, the also settable thermoregulator being connected with sample accommodating chamber.Pass through temperature
Environment temperature where rock sample is adjusted to the temperature in stratum by adjuster, to reduce the day even prevented in rock sample
Right gas evolution.
It should be understood that pressure regulator and thermoregulator can be respectively set, it can also be by pressure regulator and temperature tune
Section device is integrated into the temperature and pressure adjuster 16 as shown in Fig. 1 to 4.Temperature and pressure adjuster 16 is fixed in the circumferential side wall of cylinder, and
It extends in sample accommodating chamber, to adjust the temperature and pressure in sample accommodating chamber.And it can be by sealing element 18 in cylinder and cylinder
It is formed and is sealed between lid, cylinder and clamp assemblies, cylinder and corer 17 and cylinder and temperature and pressure adjuster.
Using above-mentioned apparatus 10, it can adequately estimate natural Gas content and core is provided, is i.e. natural gas loss amount is less
Rock sample a part so that natural Gas content error in the unconventional gas reservoir estimated, especially shale gas reservoir compared with
It is small, more accurate, reliable air content data are provided for the exploration research of unconventional gas reservoir, especially shale gas reservoir.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (9)
1. a kind of rock sample coring device, the accommodation tube including accommodating rock sample, and the simultaneously energy that is connected with the accommodation tube
The corer extending into the accommodation tube,
Wherein, the corer can carry out coring to the rock sample in sample accommodating chamber,
It further include the fixing piece being contained in the accommodation tube, the fixing piece is in contact with one end of rock sample to fix rock
Stone sample.
2. rock sample coring device according to claim 1, which is characterized in that the fixing piece includes and accommodation tube
The abutting part of axis perpendicular, the abutting part can be against on the surface of rock sample with the fixation rock sample.
3. rock sample coring device according to claim 2, which is characterized in that further include being set from the abutting part direction
The claw that the side of rock sample extends is set,
Wherein, the claw and abutting part surround one end of the rock sample to fix rock sample.
4. according to claim 1 to rock sample coring device described in any one of 3, which is characterized in that the fixing piece with
The sealed contact of the barrel of accommodation tube.
5. according to claim 1 to rock sample coring device described in any one of 3, which is characterized in that in the accommodation tube
Interior setting there are two the fixing piece, two fixing pieces along the axis of cylinder be oppositely arranged with two fixing pieces it
Between fix rock sample.
6. rock sample coring device according to claim 5, which is characterized in that at least one in two fixing pieces
It is a to be moved along the axis of the accommodation tube.
7. according to claim 1 to rock sample coring device described in any one of 3, which is characterized in that the accommodation tube packet
It includes that first end is opening and second end is closed cylinder, and is connected with the first end of cylinder to close the cylinder of the opening
Lid, the fixing piece are contained in the cylinder.
8. rock sample coring device according to claim 7, which is characterized in that axis of two fixing pieces along cylinder
Line is relatively arranged in the cylinder, is used in the cover and being provided between the closer fixing piece of the cover
The locating piece of the position of the fixed fixing piece.
9. according to claim 1 to rock sample coring device described in any one of 3, which is characterized in that further include being communicated to
The inside of the accommodation tube to adjust the pressure regulator of the pressure of the environment where rock sample, and/or
The rock sample coring device further includes being communicated to the inside of the accommodation tube to adjust the environment where rock sample
Temperature thermoregulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484929.0A CN106441980B (en) | 2015-08-07 | 2015-08-07 | Rock sample coring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510484929.0A CN106441980B (en) | 2015-08-07 | 2015-08-07 | Rock sample coring device |
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| CN106441980A CN106441980A (en) | 2017-02-22 |
| CN106441980B true CN106441980B (en) | 2018-11-23 |
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| CN201510484929.0A Active CN106441980B (en) | 2015-08-07 | 2015-08-07 | Rock sample coring device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663498B (en) * | 2017-03-27 | 2021-07-20 | 中国石油化工股份有限公司 | High-temperature depressurization and fracturing shale gas field desorption experimental device and method |
| CN110116379B (en) * | 2018-02-05 | 2023-11-24 | 中国石油化工股份有限公司 | Clamping device for rock samples |
| CN110700781B (en) * | 2018-07-09 | 2021-11-23 | 中国石油化工股份有限公司 | Shale fluid-retaining closed coring device and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470737A (en) * | 2002-11-29 | 2004-01-28 | 青岛海洋地质研究所 | Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits |
| CN2740766Y (en) * | 2004-11-05 | 2005-11-16 | 中国地质科学院探矿工艺研究所 | Directional coring device for rock core |
| CN1948940A (en) * | 2006-09-30 | 2007-04-18 | 长沙矿山研究院 | Deep sea hard rock fidelity corer |
| CN101603424A (en) * | 2009-07-13 | 2009-12-16 | 中国水电顾问集团华东勘测设计研究院 | Drilling non-destructive sampling method for deep-buried rock |
| CN102278085A (en) * | 2010-06-13 | 2011-12-14 | 淮南矿业(集团)有限责任公司 | Drilling and coring device |
| CN203008834U (en) * | 2012-12-21 | 2013-06-19 | 中国海洋石油总公司 | Rotary well wall chip taker |
| CN103711480A (en) * | 2013-12-27 | 2014-04-09 | 中国地质大学（北京） | Horizontal drilling testing device |
| CN104677805A (en) * | 2015-03-20 | 2015-06-03 | 中国海洋石油总公司 | Rock core clamping device, pollution kettle and rock core damage evaluation experiment method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120070883A1 (en) * | 2010-09-17 | 2012-03-22 | Ward F Prescott | High temperature high pressure microbial reactor |
-
2015
- 2015-08-07 CN CN201510484929.0A patent/CN106441980B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470737A (en) * | 2002-11-29 | 2004-01-28 | 青岛海洋地质研究所 | Natural gas hydrate deep-water shallow-hole pressure-retaining and heat-insulatnig core drilling outfits |
| CN2740766Y (en) * | 2004-11-05 | 2005-11-16 | 中国地质科学院探矿工艺研究所 | Directional coring device for rock core |
| CN1948940A (en) * | 2006-09-30 | 2007-04-18 | 长沙矿山研究院 | Deep sea hard rock fidelity corer |
| CN101603424A (en) * | 2009-07-13 | 2009-12-16 | 中国水电顾问集团华东勘测设计研究院 | Drilling non-destructive sampling method for deep-buried rock |
| CN102278085A (en) * | 2010-06-13 | 2011-12-14 | 淮南矿业(集团)有限责任公司 | Drilling and coring device |
| CN203008834U (en) * | 2012-12-21 | 2013-06-19 | 中国海洋石油总公司 | Rotary well wall chip taker |
| CN103711480A (en) * | 2013-12-27 | 2014-04-09 | 中国地质大学（北京） | Horizontal drilling testing device |
| CN104677805A (en) * | 2015-03-20 | 2015-06-03 | 中国海洋石油总公司 | Rock core clamping device, pollution kettle and rock core damage evaluation experiment method |
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