CN201818263U - Horizontal well coring tool - Google Patents
Horizontal well coring tool Download PDFInfo
- Publication number
- CN201818263U CN201818263U CN2010205669283U CN201020566928U CN201818263U CN 201818263 U CN201818263 U CN 201818263U CN 2010205669283 U CN2010205669283 U CN 2010205669283U CN 201020566928 U CN201020566928 U CN 201020566928U CN 201818263 U CN201818263 U CN 201818263U
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- cylinder
- bearing
- core
- inner core
- urceolus
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- Expired - Lifetime
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Abstract
The utility model discloses a horizontal well coring tool, which comprises an upper joint, a differential device, an inner-cylinder ball positioning device, an inner-cylinder suspension bearing unit, a drainage divide joint, an inner-cylinder centralizer, an outer-cylinder centralizer, a rock core pawl device, an outer cylinder, an inner cylinder and a coring drill bit. The two ends of the upper joint are equipped with pipe threads, which are connected with a drilling tool and a hexagonal rod respectively. The hexagonal rod is fit for a hexagonal sleeve. The lower end of the hexagonal sleeve is in threaded connection with an outer-cylinder positioning bearing pipe nipple, the outer cylinder, the outer-cylinder centralizer and the drill bit in turn. The lower end of the hexagonal rod is in hoop connection with the upper end of an inner-cylinder positioning pipe nipple, and the lower end of the inner-cylinder positioning pipe nipple is in threaded connection with a bearing holder. The suspension bearing is installed between the shoulder of a suspension shaft and the end face of the drainage divide joint and is arranged at the internal of the lower end of the inner-cylinder positioning pipe nipple, which is positioned by the shoulder and the bearing holder. The lower end of the drainage divide joint is in threaded connection with the inner cylinder and a reducing sleeve in turn. The strengthening bearing of the inner cylinder cooperates with the drainage divide joint and is arranged on the drainage divide joint.A roller strengthening bearing and a mussel shell rock core pawl are integrated into one piece and is arranged in the annular space formed by the coring drill bit body and the reducing sleeve, wherein the upper and lower end faces thereof are positioned by the end face of an outer-cylinder connection male buckle and the drill bit shoulder.
Description
Technical field
The utility model relates to a kind of coring tool that is used for oil, the operation of gas water horizontal well drilling and coring delivery.
Background technology
In oil, natural gas exploration or the development process,,, often need to carry out drilling and coring delivery in order to as the foundation of formulating next step development plan for parameters such as the structure of understanding the stratum, rerum naturas.Horizontal well is widely used the increase in demand that horizontal well drilling is cored in cluster well, marine drilling platform, extra large oily land prospect pit.Because horizontal well drilling operating mode and straight well are different, suitable water horizontal well coring tool is also also different with straight well drilling and coring delivery instrument.A kind of horizontal well coring tool designs according to the particularity of horizontal well drilling technique.
The characteristics that horizontal well drilling is cored: 1. big, the easy bit freezing of horizontal well frictional resistance, coring construction should simplify the operation as far as possible.2. the horizontal well coring tool is in level (inclination) state, and the setting upright of inner core helps rock core and advance tube.3. the horizontal well drilling strata buries shallowly, and rock core is loose, the heart is easily fallen in fragmentation.
The product of patent No. 91227994.X is that shoulder hangs, pin locking inner core; When utilizing hydraulic drive bullet hanging scroll to move down certain distance in the groove of pin indentation bullet hanging scroll under the effect of spring force, inner core release this moment, urceolus moves down under the effect of gravity, opens the clamp core grabber after inner core, urceolus are differential.One of its deficiency is that the success rate opened of clamp core grabber is not high, and the centering technique technology does not improve the success rate of pin release.Pin can not release causes the clamp core grabber not open, the drilling fluid passage is not smooth when pulling out of hole.The 2nd, the clamp core grabber easily falls the heart.
Summary of the invention
Characteristics and the deficiencies in the prior art at horizontal well, Rational structure with inner core ball hanging and locating device, two core grabber composite set, inner core erection device is invented a kind of horizontal well coring tool, make that the tool component flexible movements are reliable, the parts action shows obviously, improve centering technique advance, improve core recovery.The object of the present invention is to provide a kind of a kind of horizontal well coring tool that is applicable to various operating modes, easy to operate, stable performance.
The design scheme that a kind of horizontal well coring tool is adopted: the utility model has following critical piece: top connection; Differential gear comprises six square bars, six sides cover; The ball hanging and locating device is made up of urceolus location pressure-bearing pipe nipple, inner core orientation spool, the cover of blocking, pin, Φ 30 locking balls, ball cover parts; The drop-hanger bearing device comprises: bearing, suspended axle, bearing retainer, return connector; The core grabber device comprises: clip core grabber and the combination of undergauge cover, totally-enclosed core grabber; The upper and lower erection device of inner core; Inner core; Urceolus; Core bit.
Top connection is a tubular structure, and both ends all have gas thread to be connected with drilling tool and six square bars respectively; Six square bars cooperate with six sides cover; Six sides cover lower end is threaded with urceolus location pressure-bearing pipe nipple, urceolus, urceolus centralizer, drill bit successively; Six square bar lower ends are connected in the clip mode with inner core orientation spool upper end, and the lower end is threaded with bearing retainer; The suspended axle lower end is threaded with the upper end of return connector, and drop-hanger bearing is installed between suspended axle shoulder and the return connector upper surface and is installed on inside, inner core orientation spool lower end, with the shoulder and the bearing retainer location of inner core orientation spool inside.The return connector lower end is threaded successively with inner core, undergauge cover; Centralizer is matched with on the return connector on the inner core; The totally-enclosed core grabber of centralizer and clam shell is combined into one under the inner core, is placed in the annular space of core bit body and undergauge cover, and upper and lower end face connects pin thread end face, drill bit shoulder location by urceolus.
Jointing clip be with cylinder along two semicircular body that axis is divided into two, perpendicular to axis screw is arranged, with screw rod two semicircular body are connected as one; There is cannelure inside, with six square bar lower ends, outside staggered cooperation of cannelure of inner core orientation spool upper end.
Block cover for cylindric, and the upper end is a concave spherical surface, two relative pin holes of middle part processing of side; The inner core orientation spool is a cylinder, and inside is the circular hole of up-small and down-big two sections connections, outside mid portion processing cannelure, radially process two relative pin holes on the cannelure, there is cannelure the upper end, forms boss behind the upper end processing cannelure, and there is internal thread the lower end; Urceolus location pressure-bearing pipe nipple is cylindric, and the mid portion internal diameter is little, and radially processes relative two through hole, and there is screw thread at two ends.
Be connected on the return connector of inner core upper end alignment bearing on the inner core is installed, the undergauge that is connected inner core puts with the roller alignment bearing to be set upright.Alignment bearing is the two halves circle cylinders on the inner core, and cylindrical is processed with boss, on the two wherein relative boss processing porose, through this hole with the screw rod ways of connecting with two semicircular body connections and be snug fit on the return connector.
The body of totally-enclosed core grabber is a cylinder, and inner and outside, lower end, upper end is working groove and have the hole connection all, and bottom diameter is a variable-diameter structure; Totally-enclosed core grabber is the clam shell structure, is connected on the totally-enclosed core grabber body with bearing pin; Be hidden in the annular space of totally-enclosed core grabber body and undergauge cover.The part of setting upright of roller alignment bearing is a cylinder, is installed on totally-enclosed core grabber body top with screw rod.
The utility model has the advantages that: 1. differential gear---six square bars, six side's nested structures are closed when following brill, core-drilling operating mode, and mud cake is clogged the flexible gap of six square bars, six sides cover when avoiding down boring.2. ball hangs location inner core double insurance, and is safe and reliable.3. hydraulic pressure release, hydraulic drive urceolus are realized the differential so that totally-enclosed core grabber shutoff rock core of inner/outer tube.4. two core grabbers---be suitable for soft, broken, shaping stratum, 5. inner core sets upright to improve the rock core quality, to improve core recovery.6. inner core and six square bars adopt clamp connection, the quick and satisfied installation of hanging steel ball of assembling.7. drilling fluid runner design is more reasonable, the risk that the spray drilling fluid of avoiding pulling out of hole causes.8. it is simple to operate to cut the heart; The release of inner core, the differential distance of inner/outer tube can obviously show with the rising of pump pressure, reduction on ground.
Description of drawings
A kind of horizontal well coring tool of Fig. 1 structural representation
1. top connection 2. 6 square bars 3. 6 sides overlap
4. jointing clip 5. is blocked and is overlapped 6. pins
7. Φ 30 locking balls 8. ball covers 9. urceolus are located the pressure-bearing pipe nipple
10. inner core orientation spool 11. suspended axles 12. drop-hanger bearings
13. urceolus 14. return connectors 15. bearing retainers
16. alignment bearing 17. inner cores 18. urceolus centralizers on the inner core
19. roller alignment bearing 20. full envelope core grabber body 21. clam shell core grabbers
22. clip core grabber 23. undergauges overlap 24. core bits
The specific embodiment
According to Fig. 1 the utility model is further described.The centering technique process: coring tool assembles-joins that drilling tool-down brill-circulating fluid-pitching-core-drilling-pitching-heart-trip-out circulates-cut.
The utility model assembles by Fig. 1.Join drilling tool, down brill, circulating fluid, pitching, core-drilling, trip-out are identical with the technology of straight well.
Specific descriptions are cut heart process: core-drilling finishes, after throwing Φ 50 steel balls, the turn on pump release puts in place, the pump pressure rising reaches setting value back fluid pressure and cuts off pin 6, the fluid pressure cover 5 that promotes to block moves down, drilling fluid puts on fluid pressure through the drilling fluid by-pass prot on the urceolus location pressure-bearing pipe nipple 9 on the pressure-bearing surface of urceolus location pressure-bearing pipe nipple 9 simultaneously, this tries hard to recommend moving urceolus location pressure-bearing pipe nipple 9, six sides cover 3 and urceolus 13, force Φ 30 locking balls 7 to break away from original position and enter inner core orientation spool 10 inside, the suspension positioning action of inside and outside tube solves.Pump pressure this moment edge down (drilling fluid passage current limliting), its flow pressure drop acts on the pressure-bearing surface of urceolus location pressure-bearing pipe nipple 9, fluid pressure promotes urceolus 13 and moves, realize the differential of inner core 17 urceolus 13, differential distance reach 3 designs of six square bars 2, six sides cover flexible apart from the time, the clam shell core grabber 21 of totally-enclosed core grabber can be drawn close to the inner core center, and the drilling fluid routing restoration is to normal condition, and pump pressure reduces; When transferring drilling tool, mechanism power-assisted clam shell closes up.
After cutting the heart and finishing, pull out of hole, go out the heart.
Claims (6)
1. a horizontal well coring tool mainly comprises following parts: top connection (1), and six square bars (2), six sides overlap (3), jointing clip (4), the cover (5) of blocking, pin (6), Φ 30 locking balls (7), ball cover (8), urceolus location pressure-bearing pipe nipple (9), inner core orientation spool (10), suspended axle (11), drop-hanger bearing (12), urceolus (13), return connector (14), bearing retainer (15), alignment bearing on the inner core (16), inner core (17), urceolus centralizer (18), roller alignment bearing (19), full envelope core grabber body (20), clam shell core grabber (21), clip core grabber (22), undergauge cover (23), core bit (24) is characterized in that: top connection (1) is a tubular structure, and both ends all have screw thread to be connected with drilling tool and six square bars (2) respectively; Six square bars (2) cooperate with six sides covers (3); Six sides cover (3) lower end is threaded with urceolus location pressure-bearing pipe nipple (10), urceolus (13), urceolus centralizer (18), core bit (24) successively; Six square bars (2) lower end is connected with jointing clip (4) with inner core orientation spool (10) upper end, and the lower end is threaded with bearing retainer (15); Suspended axle (11) lower end is threaded with the upper end of return connector (14), drop-hanger bearing (12) is between suspended axle (11) shoulder and return connector (14) and be installed on inner core orientation spool (10) inside, lower end, with inner core orientation spool (10) inner shoulder and bearing retainer (15) location; Return connector (14) lower end is threaded successively with inner core (13), undergauge cover (23); Alignment bearing on the inner core (16) is matched with on the return connector (14); Roller alignment bearing (19) is combined into one with clam shell core grabber (21), is placed in the annular space of core bit (24) body and undergauge cover (23), and upper and lower end face is connected the shoulder location of pin thread end face and core bit (24) by urceolus (13).
2. a kind of horizontal well coring tool according to claim 1 is characterized in that: jointing clip (4) be with cylinder along two semicircular body that axis is divided into two, perpendicular to axis screw is arranged, with screw rod two semicircular body are connected as one; There is cannelure inside, with staggered cooperation of the formed boss of cannelure of six square bars (2) lower end, inner core orientation spool (10) upper end external process.
3. a kind of horizontal well coring tool according to claim 1 is characterized in that: the cover (5) of blocking is for cylindric, and the upper end is a concave spherical surface, two relative pin holes of middle part processing of side; Inner core orientation spool (10) is a cylinder, and inside is the circular hole of up-small and down-big two sections connections, and outside mid portion processing cannelure is radially processed two relative pin holes on the cannelure, and there is cannelure the upper end, and there is internal thread the lower end; Urceolus location pressure-bearing pipe nipple (9) is cylindric, and the mid portion internal diameter is little and internal thread through hole is radially arranged, and there is screw thread at two ends.
4. a kind of horizontal well coring tool according to claim 1, it is characterized in that: be connected on the return connector (14) of inner core (17) upper end alignment bearing on the inner core (16) is installed, the undergauge cover (23) that is connected inner core (17) is set upright with roller alignment bearing (19); Alignment bearing on the inner core (16) is circle cylinders in two, and cylindrical is processed with boss, on the two wherein relative boss processing porose, through this hole with the screw rod ways of connecting with two semicircular body connections and be snug fit on the return connector (14).
5. a kind of horizontal well coring tool according to claim 1, it is characterized in that: the body of totally-enclosed core grabber (20) is a cylinder, inner and outside, lower end, upper end is working groove and with the circular hole connection all, and the little circular hole of the big-and-middle internal diameter of upper and lower end internal diameter is processed in inside; Totally-enclosed core grabber (21) is the clam shell structure, is connected on the totally-enclosed core grabber body (20) with bearing pin; Be hidden in the annular space between totally-enclosed core grabber body (20) the undergauge cover (23).
6. a kind of horizontal well coring tool according to claim 1 is characterized in that: the part of setting upright of erection device is a cylinder under the inner core, is installed on totally-enclosed core grabber body (20) top with screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205669283U CN201818263U (en) | 2010-10-19 | 2010-10-19 | Horizontal well coring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205669283U CN201818263U (en) | 2010-10-19 | 2010-10-19 | Horizontal well coring tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818263U true CN201818263U (en) | 2011-05-04 |
Family
ID=43916225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205669283U Expired - Lifetime CN201818263U (en) | 2010-10-19 | 2010-10-19 | Horizontal well coring tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818263U (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913163A (en) * | 2012-11-09 | 2013-02-06 | 四川川庆石油钻采科技有限公司 | Pressure bearing device suitable for pressurized coring tool |
| CN103775013A (en) * | 2012-10-20 | 2014-05-07 | 中国石油化工股份有限公司 | Differential type air-drilling coring device and differential type air-drilling coring method |
| CN104295256A (en) * | 2014-08-12 | 2015-01-21 | 中国石油集团长城钻探工程有限公司 | Jet type coring tool |
| CN107060676A (en) * | 2017-04-21 | 2017-08-18 | 四川川庆石油钻采科技有限公司 | A kind of horizontal well coring tool |
| 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 |
| CN109025875A (en) * | 2018-08-13 | 2018-12-18 | 中国地质科学院勘探技术研究所 | A kind of built-in steel-ball type hydraulic differential mechanism |
| CN109025874A (en) * | 2018-08-13 | 2018-12-18 | 四川大学 | Core drilling rig self-starter structure |
| CN109403899A (en) * | 2018-11-08 | 2019-03-01 | 深圳大学 | Core drilling rig drive system |
| CN109403898A (en) * | 2018-11-08 | 2019-03-01 | 深圳大学 | Core drilling rig drills through mechanism |
| CN109403901A (en) * | 2018-11-08 | 2019-03-01 | 深圳大学 | Core drilling rig fluid passage structure |
| CN109441383A (en) * | 2018-11-08 | 2019-03-08 | 深圳大学 | Core drilling rig drills through control mechanism |
| CN109505549A (en) * | 2018-11-08 | 2019-03-22 | 深圳大学 | Core drilling rig control mechanism |
| CN109779552A (en) * | 2018-08-13 | 2019-05-21 | 四川大学 | Core drilling rig automatic start-stop mechanism |
| CN109869106A (en) * | 2018-08-13 | 2019-06-11 | 四川大学 | A kind of core drilling rig ends automatically mechanism |
-
2010
- 2010-10-19 CN CN2010205669283U patent/CN201818263U/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775013A (en) * | 2012-10-20 | 2014-05-07 | 中国石油化工股份有限公司 | Differential type air-drilling coring device and differential type air-drilling coring method |
| CN103775013B (en) * | 2012-10-20 | 2017-05-31 | 中石化石油工程技术服务有限公司 | Differential type air drilling coring device and method |
| CN102913163A (en) * | 2012-11-09 | 2013-02-06 | 四川川庆石油钻采科技有限公司 | Pressure bearing device suitable for pressurized coring tool |
| CN102913163B (en) * | 2012-11-09 | 2016-01-20 | 四川川庆石油钻采科技有限公司 | Be applicable to the pressure-bearing device of pressurized coring tool |
| CN104295256A (en) * | 2014-08-12 | 2015-01-21 | 中国石油集团长城钻探工程有限公司 | Jet type coring tool |
| 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 |
| CN107060676A (en) * | 2017-04-21 | 2017-08-18 | 四川川庆石油钻采科技有限公司 | A kind of horizontal well coring tool |
| CN109869106A (en) * | 2018-08-13 | 2019-06-11 | 四川大学 | A kind of core drilling rig ends automatically mechanism |
| CN109779552A (en) * | 2018-08-13 | 2019-05-21 | 四川大学 | Core drilling rig automatic start-stop mechanism |
| CN109869106B (en) * | 2018-08-13 | 2023-12-19 | 四川大学 | Automatic end mechanism of core drilling machine |
| CN109025874B (en) * | 2018-08-13 | 2023-05-26 | 四川大学 | Automatic starting mechanism of core drilling machine |
| CN109025874A (en) * | 2018-08-13 | 2018-12-18 | 四川大学 | Core drilling rig self-starter structure |
| CN109025875A (en) * | 2018-08-13 | 2018-12-18 | 中国地质科学院勘探技术研究所 | A kind of built-in steel-ball type hydraulic differential mechanism |
| CN109403901A (en) * | 2018-11-08 | 2019-03-01 | 深圳大学 | Core drilling rig fluid passage structure |
| CN109505549A (en) * | 2018-11-08 | 2019-03-22 | 深圳大学 | Core drilling rig control mechanism |
| CN109441383A (en) * | 2018-11-08 | 2019-03-08 | 深圳大学 | Core drilling rig drills through control mechanism |
| CN109403898A (en) * | 2018-11-08 | 2019-03-01 | 深圳大学 | Core drilling rig drills through mechanism |
| CN109505549B (en) * | 2018-11-08 | 2023-10-27 | 深圳大学 | Core drilling machine control mechanism |
| CN109403898B (en) * | 2018-11-08 | 2023-11-10 | 深圳大学 | Drilling mechanism of core drilling machine |
| CN109441383B (en) * | 2018-11-08 | 2023-11-10 | 深圳大学 | Drilling control mechanism of core drilling machine |
| CN109403901B (en) * | 2018-11-08 | 2023-11-10 | 深圳大学 | Drilling fluid channel structure of core drilling machine |
| CN109403899B (en) * | 2018-11-08 | 2023-12-08 | 深圳大学 | Coring drilling machine driving system |
| CN109403899A (en) * | 2018-11-08 | 2019-03-01 | 深圳大学 | Core drilling rig drive system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151116 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |