CN205876247U - How long spend shell fragment formula core gripper and make up rock core and grab heart device - Google Patents
How long spend shell fragment formula core gripper and make up rock core and grab heart device Download PDFInfo
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- CN205876247U CN205876247U CN201620674258.4U CN201620674258U CN205876247U CN 205876247 U CN205876247 U CN 205876247U CN 201620674258 U CN201620674258 U CN 201620674258U CN 205876247 U CN205876247 U CN 205876247U
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Abstract
The utility model relates to a core gripper technical field is a how long spend shell fragment formula core gripper and make up rock core and grab heart device, including the claw cover body, keep off the ring, connect nipple joint and elastic sleeve, the internal side right part of claw cover is the narrow frustum shape in the wide right side in a left side, claw cover body middle part fixed mounting has the ring of keeping off, the internal side right part cover of claw cover is equipped with clamp formula core gripper, it has the interval to form the inclined hole to keep off between the ring sum clamp formula core gripper, claw cover body right -hand member an organic whole is fixed with the connection nipple joint, connects the flexible cover of nipple joint outside fixed mounting, the integrative interval of elastic sleeve right part is fixed with the shell fragment, the shell fragment is including long shell fragment, well shell fragment and short shell fragment. The utility model has the advantages of reasonable and compact structure, convenient to use can effectively make and how long spends shell fragment formula core gripper and hold the rock core tightly through establish long shell fragment, well shell fragment and short shell fragment in the elastic sleeve, prevents the rock core gliding, and the core recovery is guaranteed to the steadiment, satisfies the research of user to stratum rerum natura data.
Description
Technical field
This utility model relates to core grabber technical field, is a kind of multiple-length spring-piece type core grabber and combination core gripper with slip heart dress
Put.
Background technology
Oil field in order to grasp remaining oil distribution, evaluate development effectiveness, block oil and gas production etc. need to dispose some evaluate wells enter
Row coring operation, Partial Block is old liberated area, and through waterflooding extraction for many years, physical property and the mineral content of oil bearing bed change,
Stratum becomes loose, and formation cementation intensity reduces, and formation is mud stone or the higher sandstone of shale content in addition, on core grabber
Tungsten carbide coating easily blocked by mud or mud cake, surface is easily formed hydration shell, and core gripper with slip-collar can not the most descending armful
Tight rock core, cuts heart rock core and easily slips, and carries out easily blocking up during coring operation the heart in this case, reduces core recovery, this
Sample cannot meet user's requirement, needs to redeploy core hole or adopts and obtain record in other ways, adding into
This.At unconsolidated formation according to current structure of tackling all problems at once, due in stratum, interlayer is many and loose tight formation alternately, at the scene
Operation makes needs find in time to cut heart position, and otherwise, the card tackled all problems at once easily snaps off or cuts the heart and pressurize not running into hard formation
The easily disconnected rock core of card.
Summary of the invention
This utility model provides a kind of multiple-length spring-piece type core grabber and combination core gripper with slip center device, overcomes above-mentioned existing
Having the deficiency of technology, it can effectively solve core gripper with slip-collar the most descending can not hold rock core tightly, cut heart rock core easily slip and
The card tackled all problems at once run into hard formation easily snap off or cut the heart pressurize be difficult to the disconnected rock core of card problem.
One of the technical solution of the utility model is realized by following measures: a kind of multiple-length spring-piece type rock core
Pawl, including pawl body, baffle ring, connecting short section and resilient sleeve, inside pawl body, right part is left wide right narrow taper type, in pawl body
Portion is installed with baffle ring, and inside pawl body, right part is set with core gripper with slip-collar, between having between baffle ring and core gripper with slip-collar
Away from forming inclined hole, pawl body right-hand member is integrally fixed with connecting short section, is installed with resilient sleeve outside connecting short section, and resilient sleeve is right
One interval, portion is fixed with shell fragment, and shell fragment includes long shell fragment, middle shell fragment and short shell fragment.
The two of the technical solution of the utility model are realized by following measures: a kind of combination core gripper with slip center device,
Including multiple-length spring-piece type core grabber, inner core, urceolus, drill bit upper body and drill bit lower body, urceolus right-hand member is fixedly connected with on drill bit
Body, drill bit upper body right-hand member is fixedly connected with drill bit lower body, internal under drill bit is provided with left wide right narrow shrinkage hole, pawl body left end and
Inner core is fixed together, and the right-hand member of long shell fragment is positioned on the left side of shrinkage hole.
Further optimization and/or improvements to technique scheme are presented herein below:
Above-mentioned long shell fragment is at least six, and middle shell fragment is at least three, and short shell fragment is at least three.
Being provided with boss inside above-mentioned pawl body upper end, baffle ring lower surface is sitting on boss.
It is provided with at least two groove outside above-mentioned pawl body.
Above-mentioned connecting short section and resilient sleeve are threadably secured and link together.
It is provided with connection screw thread inside above-mentioned pawl body upper end.
Above-mentioned urceolus and drill bit upper body are threadably secured and link together.
Above-mentioned drill bit upper body and drill bit lower body weld together.
This utility model reasonable and compact in structure, easy to use, by setting long shell fragment, middle shell fragment and short bullet in resilient sleeve
Sheet can effectively make core grabber hold rock core tightly, prevents rock core from gliding, and increases stability, it is ensured that core recovery, meets user couple
The research of formation physical property data.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of this utility model embodiment 1 regards sectional structure schematic diagram.
Accompanying drawing 2 is that the master of this utility model embodiment 2 regards sectional structure schematic diagram.
It is pawl body that coding in accompanying drawing is respectively as follows: 1, and 2 is baffle ring, and 3 is connecting short section, and 4 is resilient sleeve, and 5 is clamping hoop type
Core grabber, 6 is inclined hole, and 7 is long shell fragment, and 8 is middle shell fragment, and 9 is short shell fragment, and 10 is boss, and 11 is groove, and 12 is inner core, and 13 are
Urceolus, 14 is drill bit upper body, and 15 is drill bit lower body, and 16 is shrinkage hole.
Detailed description of the invention
This utility model is not limited by following embodiment, can come with practical situation according to the technical solution of the utility model
Determine specific embodiment.
In this utility model, for the ease of describing, the description of the relative position relation of each parts is all according to description
The Butut mode of accompanying drawing 1 is described, such as: the position relationship of upper and lower, left and right etc. is based on the Butut of Figure of description
Direction determines.
Below in conjunction with embodiment and accompanying drawing, this utility model is further described:
Embodiment 1: as shown in Figure 1, this multiple-length spring-piece type core grabber includes pawl body 1, baffle ring 2, connecting short section 3 and
Resilient sleeve 4, inside pawl body 1, right part is left wide right narrow taper type, is installed with baffle ring 2, pawl body 1 in the middle part of pawl body 1
Inner side right part is set with core gripper with slip-collar 5, has spacing to form inclined hole 6 between baffle ring 2 and core gripper with slip-collar 5, and pawl body 1 is right
End is integrally fixed with connecting short section 3, is installed with resilient sleeve 4 outside connecting short section 3, and resilient sleeve 4 right part one interval is fixing
Shell fragment, shell fragment is had to include long shell fragment 7, middle shell fragment 8 and short shell fragment 9.
According to actual needs above-mentioned multiple-length spring-piece type core grabber can be made further optimization and/or improvements:
As shown in Figure 1, at least six, long shell fragment 7, at least three, middle shell fragment 8, at least three, short shell fragment 9.This
Sample, it is simple to preferably shrink and hold rock core tightly.
As shown in Figure 1, pawl body 1 inside middle portion is provided with boss 10, and baffle ring 2 right side seat is on boss 10.So, gear
Ring 2 can play upper end position-limiting action.
As shown in Figure 1, it is provided with at least two groove 11 outside pawl body 1.So, can seal by mounting O-shaped in groove 11
Circle and YX RunddichtringO.
As shown in Figure 1, connecting short section 3 and resilient sleeve 4 are threadably secured and link together.So, it is simple to install and tear open
Unload.
As shown in Figure 1, in order to be connected with other instrument, pawl body 1 is provided with connection screw thread inside upper end.
Embodiment 2: as shown in Figure 2, the combination core gripper with slip center device of this use multiple-length spring-piece type core grabber includes many
Length spring-piece type core grabber, inner core 12, urceolus 13, drill bit upper body 14 and drill bit lower body 15, urceolus 13 right-hand member is fixedly connected with brill
Head upper body 14, drill bit upper body 14 right-hand member is fixedly connected with drill bit lower body 15, is provided with left wide right narrow shrinkage hole in drill bit lower body 15
16, pawl body 1 left end and inner core 12 are fixed together, and the right-hand member of long shell fragment 7 is positioned on the left side of shrinkage hole 16.Use
Time, along with drill bit rotary drilling formed rock core in resilient sleeve 4 until pawl body 1 enters in coring inner drum 12；When cutting the heart,
Core according to the situation of creeping into and inner core 12, the cementing situation of geological logging Preliminary Analysis For Data drilled strata, which kind of uses cut the heart
Mode, runs into hard formation and just uses core gripper with slip-collar 5 to be main heart mode of cutting, and lifting drilling tool pulls off rock core；If running into loose
Stratum or loose and hard formation alternately time core gripper with slip-collar 5 and resilient sleeve 4 fabricated structure can be used to cut the heart, above carry drilling tool and see
Examining weight indicator situation, it is judged that cut mood condition, if showing without cutting the heart, pitching can build the pressure and force coring inner drum 12 descending drive resilient sleeve
4 is descending, and long shell fragment 7, middle shell fragment 8, short shell fragment 9 enter in the shrinkage hole 16 within drill bit lower body 15, forces long shell fragment 7, is hit by a bullet
Sheet 8, short shell fragment 9 shrink holds rock core tightly, it is achieved coring inner drum reservoir core plugging, completes coring operation.
As shown in Figure 2, urceolus 13 and drill bit upper body 14 are threadably secured and link together.So, it is simple to install and tear open
Unload.
As shown in Figure 2, drill bit upper body 14 and drill bit lower body 15 weld together.
Above technical characteristic constitutes embodiment of the present utility model, and it has stronger adaptability and implementation result, can
Increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. a multiple-length spring-piece type core grabber, it is characterised in that include pawl body, baffle ring, connecting short section and resilient sleeve, pawl set
Internal side right part is left wide right narrow taper type, is installed with baffle ring in the middle part of pawl body, and inside pawl body, right part is set with card
Hoop formula core grabber, has spacing to form inclined hole between baffle ring and core gripper with slip-collar, pawl body right-hand member is integrally fixed with connecting short section,
Being installed with resilient sleeve outside connecting short section, resilient sleeve right part one interval is fixed with shell fragment, and shell fragment includes long shell fragment, is hit by a bullet
Sheet and short shell fragment.
Multiple-length spring-piece type core grabber the most according to claim 1, it is characterised in that long shell fragment is at least six, middle shell fragment
At least three, short shell fragment is at least three.
Multiple-length spring-piece type core grabber the most according to claim 1 and 2, it is characterised in that pawl body inside middle portion is provided with convex
Platform, baffle ring right side seat is on boss.
Multiple-length spring-piece type core grabber the most according to claim 1 and 2, it is characterised in that be provided with at least two outside pawl body
Individual groove.
Multiple-length spring-piece type core grabber the most according to claim 3, it is characterised in that be provided with at least two outside pawl body
Groove.
6. according to the multiple-length spring-piece type core grabber described in claim 1 or 2 or 5, it is characterised in that connecting short section and resilient sleeve
It is threadably secured and links together, or/and, pawl body is provided with connection screw thread inside upper end.
Multiple-length spring-piece type core grabber the most according to claim 4, it is characterised in that connecting short section and resilient sleeve pass through spiral shell
Stricture of vagina is fixed together, or/and, pawl body is provided with connection screw thread inside upper end.
8. one kind uses the combination rock core according to multiple-length spring-piece type core grabber described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7
Grabbing center device, it is characterised in that include multiple-length spring-piece type core grabber, inner core, urceolus, drill bit upper body and drill bit lower body, urceolus is right
End is fixedly connected with drill bit upper body, and drill bit upper body right-hand member is fixedly connected with drill bit lower body, under drill bit internal be provided with left wide right narrow
Shrinkage hole, pawl body left end and inner core be fixed together, and the right-hand member of long shell fragment is positioned on the left side of shrinkage hole.
Combination core gripper with slip center device the most according to claim 8, it is characterised in that urceolus and drill bit upper body are solid by screw thread
Surely link together.
Combination core gripper with slip center device the most according to claim 8 or claim 9, it is characterised in that drill bit upper body and the weldering of drill bit lower body
It is connected together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620674258.4U CN205876247U (en) | 2016-06-30 | 2016-06-30 | How long spend shell fragment formula core gripper and make up rock core and grab heart device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620674258.4U CN205876247U (en) | 2016-06-30 | 2016-06-30 | How long spend shell fragment formula core gripper and make up rock core and grab heart device |
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| Publication Number | Publication Date |
|---|---|
| CN205876247U true CN205876247U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620674258.4U Active CN205876247U (en) | 2016-06-30 | 2016-06-30 | How long spend shell fragment formula core gripper and make up rock core and grab heart device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014313A (en) * | 2016-06-30 | 2016-10-12 | 中国石油集团西部钻探工程有限公司 | Multi-length bouncing piece type core gripper and combined core gripping device |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
-
2016
- 2016-06-30 CN CN201620674258.4U patent/CN205876247U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014313A (en) * | 2016-06-30 | 2016-10-12 | 中国石油集团西部钻探工程有限公司 | Multi-length bouncing piece type core gripper and combined core gripping device |
| CN109779553A (en) * | 2019-03-07 | 2019-05-21 | 中国地质科学院勘探技术研究所 | A kind of totally-enclosed boring sample device |
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