CN204200133U - A kind of drilling and coring delivery ball-throwing apparatus - Google Patents
A kind of drilling and coring delivery ball-throwing apparatus Download PDFInfo
- Publication number
- CN204200133U CN204200133U CN201420559092.2U CN201420559092U CN204200133U CN 204200133 U CN204200133 U CN 204200133U CN 201420559092 U CN201420559092 U CN 201420559092U CN 204200133 U CN204200133 U CN 204200133U
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- plunger shaft
- piston
- central tube
- drilling
- shaped groove
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Abstract
The utility model discloses a kind of drilling and coring delivery ball-throwing apparatus, comprise piston and device body, device body is in cross centered by central tube, central tube bottom is provided with connector, the internal diameter of central tube is greater than the diameter of thrown in spheroid, at least four independently plunger shaft are dispersed with in central tube outer wall peripheral intervals, pressure transmission hole is provided with bottom plunger shaft, piston is provided with in plunger shaft, piston lower portion is provided with and forms with plunger shaft the piston seat sliding axially and be sealed and matched, piston seat lateral extends and the U-shaped groove be provided with in extension to inner opening, the bottom surface of U-shaped groove is interior inclined-plane, U-shaped groove is formed with the plunger shaft inwall near axle center and coordinates the spacing of steel ball, the chamber wall of plunger shaft near axle center exceeds the elemental height of piston base.It is simple that this device has structure, easy to operate, safe and reliable advantage.
Description
Technical field
The utility model relates to a kind of drilling and coring delivery ball-throwing apparatus in drilling extracting core device field.
Background technology
What current broken ground was cored cut heart technique mainly contains two kinds, and fluid power builds the pressure and cuts the heart and the heart is cut in pitching pressurization.Fluid power build the pressure cut heart technique mainly when hole deviation comparatively large (more than 40 degree), mechanical pressurization cannot be used to cut the heart use, and often there is the situation of cutting continuous rock core in part lithology compared with hard formation in this technique, and therefore the scope of application is restricted.
Now widely used is that the heart is cut in pitching pressurization, drops into four steel balls successively, utilize steel ball transmission of pressure mechanical depress to cut the mode of the heart after namely taking the heart.This heart mode of cutting operates relatively simple, and reliability is very high, but the mode of pitching has problems always.Stuff comprises: from manifold of ground pitching or from the plug pitching standpipe; Dismantle the plug pitching of kelly bar top.After the drawback of manifold of ground or the pitching of standpipe plug is pitching, need turn on pump drilling fluid that steel ball is sent into kelly bar from manifold of ground through standpipe, shaft bottom unconsolidated core may wash out by this process, and core recovery is affected.After being to take drilling depth from the drawback of kelly bar top plug pitching, kelly bar distance from top rig floor is greater than 3m usually, and personnel have a drilling tool in well, kelly bar plug is dismantled in work high above the ground is the operation that a danger is higher.When personnel ascend a height, kelly bar cannot rotate, cause (being generally 3 minutes) during this period of time drilling tool being still in well for a long time of pitching interval, more it is a risk that, if there are the complex situations such as well kick after dismantling in plug, drilling fluid directly will spray from plug, and plug now will be had little time to install, cannot circulating fluid, this will cause well kick to be difficult to control, and cause an immeasurable loss.
" the drilling and coring delivery ball injection joint device " of the invention such as Yi Guihua belongs to a kind of joint, need to be connected on drilling tool, need during pitching that this joint is brought up to more than turntable surface could operate, this operation is applicable to hard formation coring tool, and soft bottom coring tool is cored terminate all not allow to carry to kelly bar before cutting the heart, now ball injection joint is still in well, cannot operate it, therefore this technology cannot be applied in soft bottom centering technique, thus limits its scope of application.
" a kind of oil drilling is cored with ball-throwing apparatus " of the invention such as Wen Linrong has good, the simple to operate feature of safety, but this device is connected on manifold of ground, need turn on pump after pitching and reach a fixed displacement to make steel ball enter drilling tool by standpipe and hose, the process of turn on pump may cause shaft bottom unconsolidated core to be flushed away, thus affect core recovery, be therefore also restricted in the scope of application.
Summary of the invention
The purpose of this utility model is exactly the drawback existed to overcome prior art, proposes a kind of application more extensive, use safety, easily and efficiently drilling and coring delivery ball-throwing apparatus.
A kind of drilling and coring delivery ball-throwing apparatus, comprise piston and device body, device body is in cross centered by central tube, central tube bottom is provided with connector, the internal diameter of central tube is greater than the diameter of thrown in spheroid, at least four independently plunger shaft are dispersed with in central tube outer wall peripheral intervals, pressure transmission hole is provided with bottom plunger shaft, piston is provided with in plunger shaft, piston lower portion is provided with and forms with plunger shaft the piston seat sliding axially and be sealed and matched, piston seat lateral extends and the U-shaped groove be provided with in extension to inner opening, the bottom surface of U-shaped groove is interior inclined-plane, U-shaped groove is formed with the plunger shaft inwall near axle center and coordinates the spacing of steel ball, the chamber wall of plunger shaft near axle center exceeds the elemental height of piston base.
Such scheme also comprises:
U-shaped groove on piston is arch groove or conical surface groove, dovetail groove, and be interior inclined-plane near the plunger shaft inwall upper surface in axle center, piston seat is provided with sealing ring.
On device body, be connected with upper end cover, upper end cover and top land height to meet when top land arrives at upper end cover steel ball can free landing, and piston seat can not be deviate from plunger shaft.
Pressure transmission hole bottom plunger shaft is by connector, hydraulic tube, hydraulic control valve connecting fluid depressor.
Adopt the drilling and coring delivery ball-throwing apparatus of such scheme, when needing pitching, operating personnel only need operate control on rig floor, according to different pitching quantity and the requirement of pitching interval time, pressure can be reached piston by the control valve controlling every bar pipeline respectively, and ball is removed spacing, steel ball will fall into drilling tool in interval, until finish, therefore there is advantage safely, easily and fast.Do not need turn on pump release during pitching, ensure that unconsolidated core is not flushed away, yield rate obtains guarantee.Rotation drilling tool at any time can be needed according to scene in pitching process, can turn on pump circulation at any time at needs circulation time.This device is specially adapted to broken ground and cores middle core breaking by hydraulic pressure, also other need the technique of pitching to can be applicable to oil drilling industry, and according to the difference of technique, the size of this device can be changed, thus be applicable to the requirement that needs drop into different size and varying number steel ball.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is A-A position sectional view in Fig. 1.
Fig. 3 is that a kind of embodiment of the utility model is raised the structural representation of state at right hand piston.
In figure: 1 upper end cover, 2 steel balls, 3 pistons, 4 device bodies, 5 sealing rings, 6 hydraulic tubes.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, the utility model is further described.
With reference to accompanying drawing 1, 2, according to core this apparatus design of needs of input four steel balls of soft bottom, four pistons 3 are housed, every piston 3 coordinates with a steel ball 2 respectively and is installed in the plunger shaft 4 of body, sealing ring 5 is equipped with in piston 3 bottom, upper end cover 1 is connected with body 4 by screw thread after installing piston 3, whole device is by the plug box being threaded in kelly bar gooseneck position of device body 4 bottom, four pressure transmission holes are had respectively bottom the plunger shaft of device body 4, be connected with hydraulic line 6 by gas thread, hydraulic line opposite side manually valve is connected to the hydraulic press (station) of rig floor.
Plunger shaft on device body 4 can, by the part of central tube as chamber wall, can be also the plunger shaft of having a style of one's own, and immediately falls into central tube as long as meet after steel ball comes off.
At the control valve of the corresponding hydraulic tube 6 of rig floor manual unlocking when needing pitching, it is up that hydraulic cavities corresponding in body 4 will be subject to hydraulic drive piston 3, what lose corresponding steel ball 2 after the up certain altitude of piston 3 is spacing, steel ball 4 gravitate falls in drilling tool by central tube, such ball has just successfully been dropped into, and other 3 balls can make to drop into successively in a like fashion in the time interval as requested.So just meet the requirement dropping into four steel balls respectively.
The situation of Fig. 3 when to be a piston outreach by hydraulic drive is up, now piston is spacing by upper end cover, device body loses the position-limiting action to steel ball simultaneously, falls in drilling tool, thus achieve the object of an input ball under steel ball gravitate along slope in piston.
Claims (4)
1. a drilling and coring delivery ball-throwing apparatus, it is characterized in that comprising piston and device body, device body is in cross centered by central tube, central tube bottom is provided with connector, the internal diameter of central tube is greater than the diameter of thrown in spheroid, at least four independently plunger shaft are dispersed with in central tube outer wall peripheral intervals, pressure transmission hole is provided with bottom plunger shaft, piston is provided with in plunger shaft, piston lower portion is provided with and forms with plunger shaft the piston seat sliding axially and be sealed and matched, piston seat lateral extends and the U-shaped groove be provided with in extension to inner opening, the bottom surface of U-shaped groove is interior inclined-plane, U-shaped groove is formed with the plunger shaft inwall near axle center and coordinates the spacing of steel ball, the chamber wall of plunger shaft near axle center exceeds the elemental height of piston base.
2. drilling and coring delivery ball-throwing apparatus according to claim 1, is characterized in that: the U-shaped groove on piston is arch groove or conical surface groove, dovetail groove, and be interior inclined-plane near the plunger shaft inwall upper surface in axle center, piston seat is provided with sealing ring.
3. drilling and coring delivery ball-throwing apparatus according to claim 1 and 2, it is characterized in that: on device body, be connected with upper end cover, upper end cover and top land height to meet when top land arrives at upper end cover steel ball can free landing, and piston seat can not be deviate from plunger shaft.
4. drilling and coring delivery ball-throwing apparatus according to claim 3, is characterized in that: the pressure transmission hole bottom plunger shaft is by connector, hydraulic tube, hydraulic control valve connecting fluid depressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559092.2U CN204200133U (en) | 2014-09-27 | 2014-09-27 | A kind of drilling and coring delivery ball-throwing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559092.2U CN204200133U (en) | 2014-09-27 | 2014-09-27 | A kind of drilling and coring delivery ball-throwing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200133U true CN204200133U (en) | 2015-03-11 |
Family
ID=52658102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420559092.2U Expired - Fee Related CN204200133U (en) | 2014-09-27 | 2014-09-27 | A kind of drilling and coring delivery ball-throwing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200133U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545310A (en) * | 2015-09-18 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of down-hole automatic ball-throwing ball seat |
| CN107100573A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | One kind is cored with exempting from ball pitching tool |
| CN111577233A (en) * | 2020-05-28 | 2020-08-25 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
-
2014
- 2014-09-27 CN CN201420559092.2U patent/CN204200133U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545310A (en) * | 2015-09-18 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of down-hole automatic ball-throwing ball seat |
| CN106545310B (en) * | 2015-09-18 | 2019-02-15 | 中国石油化工股份有限公司 | A kind of underground automatic ball-throwing ball seat |
| CN107100573A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | One kind is cored with exempting from ball pitching tool |
| CN111577233A (en) * | 2020-05-28 | 2020-08-25 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
| CN111577233B (en) * | 2020-05-28 | 2022-03-29 | 中国石油天然气集团有限公司 | Device and method capable of remotely and automatically and continuously throwing fracturing balls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |