CN104712279A - Coiled tubing hydraulic double-way jar - Google Patents
Coiled tubing hydraulic double-way jar Download PDFInfo
- Publication number
- CN104712279A CN104712279A CN201510094165.4A CN201510094165A CN104712279A CN 104712279 A CN104712279 A CN 104712279A CN 201510094165 A CN201510094165 A CN 201510094165A CN 104712279 A CN104712279 A CN 104712279A
- Authority
- CN
- China
- Prior art keywords
- cylinder sleeve
- piston
- impact tube
- coiled tubing
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 15
- 230000002457 bidirectional effect Effects 0.000 claims description 14
- 238000003801 milling Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000004809 Teflon Substances 0.000 claims description 6
- 229920006362 Teflon® Polymers 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
- E21B31/113—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically-operated
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of oil and gas field coiled tubing working and well repairing, in particular to a coiled tubing hydraulic double-way jar which comprises an upper connector, an upper cylinder sleeve, an O-shaped sealing ring, a sealing ring back ring, a sealing ring, a sand-prevention blocking ring, an impact tube nut, hydraulic oil, an impact tube, an O-shaped sealing ring blocking ring, an upper piston, a middle connector, a lower piston, a sand-prevention blocking ring, a locking nut, a lower cylinder sleeve, a spline lower connector and a spline sleeve. During coiled tubing drilling and grinding, due to various reasons such as complex geologic structures, improper technical measures, mud, tubular columns and well holes, accidents of drilling tool blocking often happen. During drilling tool blocking, upward or downward strong impact force is applied to a blocking point through the jar, so that the blocking point is loosened, and accordingly the purpose of quick unblocking is achieved. The jar can be widely used in well repairing working such as coiled tubing salving, and salving working is reliable and quick.
Description
Technical field
The present invention relates to oil gas field continuous oil pipe operation and well workover technology field, particularly a kind of coiled tubing hydraulic bidirectional bumper jar.
Background technology
In the operation of continuous tubing drill mill, because complicated geological, technical measures are improper and a variety of causes such as mud, tubing string, well, usually there is drilling tool by the accident of card (namely bit freezing).Due to coiled tubing own characteristic, tensile strength degree, often can not trip out stuck pipe post effectively.So drilling tool meet card time, can by two-way bumper jar to stuck point place up or down with strong jarring force, stuck point is loosened, thus reaches the object of rapid unfreezing.Bumper jar also can be widely applied in the workover treatments such as coiled tubing salvaging, makes fishing more reliable, quick.Bumper jar has upwards bumper jar, downwards bumper jar, two-way bumper jar.China starts to introduce bumper jar technology from the seventies, but compared with drilling technology, all there is very large gap in technical level, product quality and maintenance service always, particularly small-sized and the supporting bumper jar of coiled tubing, affect by continuous oil pipe operation overall situation, bumper jar self seal material and processing machining accuracy, all there is no good solution always.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of coiled tubing hydraulic bidirectional bumper jar is provided, effectively can solves lock of tool drilling.
For realizing above-mentioned technical purpose, scheme provided by the invention is: a kind of coiled tubing hydraulic bidirectional bumper jar, comprise the coat part be made up of the top connection be threaded successively, upper cylinder sleeve, transition joint, lower cylinder sleeve, tail cover, with, the mandrel segment be made up of the impact tube nut be threaded successively, impact tube, lower contact, the inner chamber of mandrel segment and coat part is slidably connected, described impact tube is the reducer pipe seamlessly transitted that middle part caliber is greater than two ends caliber, and its outside annular space is full of hydraulic oil; The lower end of described upper cylinder sleeve, the upper end of lower cylinder sleeve are external screw thread, the two ends of transition joint are internal thread, the internal diameter of transition joint has bulge loop, annular space between this bulge loop and impact tube is oil duct, the space holding upper piston is formed between the lower end of upper cylinder sleeve and bulge loop, form the space holding lower piston between the upper end of bulge loop and lower cylinder sleeve, upper piston and the equal slip cap of lower piston are located at impact tube cylindrical, and the internal diameter of upper piston and lower piston is close to the maximum caliber of impact tube; Upper end and the lower end of upper cylinder sleeve of upper piston are the conical surface mutually mated, flow path groove offered by the conical surface of upper piston, the groove milling be convenient to hydraulic oil and passed through all is offered in the cylindrical of upper piston and lower surface, lower end and the upper end of lower cylinder sleeve of lower piston are the conical surface mutually mated, flow path groove offered by the conical surface of lower piston, and the groove milling be convenient to hydraulic oil and passed through all is offered in the cylindrical of lower piston and upper surface.
And, the connection of thread of described top connection and upper cylinder sleeve arranges No. I O type circle sealing ring, the connection of thread of upper cylinder sleeve and transition joint arranges No. I O RunddichtringO back-up ring, No. III O RunddichtringO, the connection of thread of transition joint and lower cylinder sleeve arranges No. IV O RunddichtringO, No. II O RunddichtringO back-up ring, and the connection of thread that lower cylinder sleeve and tail overlap arranges No. VI O RunddichtringO; The connection of thread of described impact tube nut and impact tube arranges No. II O RunddichtringO, and the connection of thread of impact tube and lower contact arranges No. V O RunddichtringO, and has locking nut locking.
And described impact tube nut upper end is interior hexagonal structure, and cylindrical upper end groove arranges combined seal ring and upper inboard wall of cylinder liner forms slipper seal, this combined seal ring seals back band by multiple No. I sealing ring sulfiding and configuration No. I, two ends and forms.
And described impact tube nut cylindrical lower end groove arranges No. I sand control baffle ring, this No. I sand control baffle ring is the annulus that the Teflon material in its side with slant cutting edge manufactures.
And groove arranges combined seal ring and lower cylinder sleeve bore forms slipper seal on the cylindrical of described impact tube lower end, this combined seal ring configures No. II, two ends sealing ring back band by multiple No. II sealing ring sulfided and forms.
And described impact tube cylindrical lower groove arranges No. II sand control baffle ring and coordinates with lower cylinder sleeve bore, this No. II sand control baffle ring is the annulus that the Teflon material in its side with slant cutting edge manufactures.
And described tail cover has the spline housing of groove milling for internal diameter, the cylindrical of described lower contact has the spline be made up of the convex key of monolithic, the groove milling of spline housing and the spline fitted of lower contact, forms bumper jar moment of torsion and transmits auxiliary connection.
And described upper piston and/or lower piston adopt 17-4PH material.
Beneficial effect of the present invention is: structure is simple, is easy to maintaining; Pure hydraulic structure, does not have spring; The brief supporting variable-diameter structure of upper and lower piston is shorter than most bumper jar; Special hermetically-sealed construction ensures that bumper jar can repeatedly use, and can bear high temperature simultaneously; The piston structure of particulate metal 17-4PH is adopted to make jarring dynamics larger, longer service life; There is adjustment compensation mechanism, without the need to discharging hydraulic oil according to downhole temperature before going into the well; Monolithic spline structure can bear very high moment of torsion.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the amplification assumption diagram of part A in Fig. 1.
Fig. 3 is the amplification assumption diagram of part B in Fig. 1.
Fig. 4 is the amplification assumption diagram of C part in Fig. 1.
Fig. 5 is the combined seal ring structural representation at impact tube nut place.
Fig. 6 is the combined seal ring structural representation of impact tube lower end.
Fig. 7 is the structural representation of upper piston.
Fig. 8 is sand control baffle ring structural representation.
Wherein, 1, top connection, 2, upper cylinder sleeve, 3, No. I O type circle sealing ring, 4, No. I sealing ring back band, 5, No. I sealing ring, 6, No. II O RunddichtringO, 7, No. I sand control baffle ring, 8, impact tube nut, 9, hydraulic oil, 10, impact tube, 11, No. I O RunddichtringO back-up ring, 12, No. III O RunddichtringO, 13, upper piston, 14, transition joint, 15, lower piston, 16, No. IV O RunddichtringO, 17, No. II O RunddichtringO back-up ring, 18, No. II sealing ring back band, 19, No. II sealing ring, 20, No. V O RunddichtringO, 21, No. II sand control baffle ring, 22, locking nut, 23, lower cylinder sleeve, 24, lower contact, 25, No. VI O RunddichtringO, 26, spline housing, 27, reducing, 28, flow path groove, 29, groove milling, 30, slant cutting edge.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
The present embodiment provides a kind of coiled tubing hydraulic bidirectional bumper jar, as shown in Fig. 1 ~ 4, comprise the coat part be made up of the top connection 1 be threaded successively, upper cylinder sleeve 2, transition joint 14, lower cylinder sleeve 23, tail cover, with, the mandrel segment be made up of the impact tube nut 8 be threaded successively, impact tube 10, lower contact 24, the inner chamber of mandrel segment and coat part is slidably connected, and both can move to axial.Described impact tube 10 is greater than the reducer pipe seamlessly transitted of two ends caliber for middle part caliber, and its outside annular space is full of hydraulic oil 9; The lower end of described upper cylinder sleeve 2, the upper end of lower cylinder sleeve 23 are external screw thread, the two ends of transition joint 14 are internal thread, the internal diameter of transition joint 14 has bulge loop, annular space between this bulge loop and impact tube 10 is oil duct, the space holding upper piston 13 is formed between the lower end of upper cylinder sleeve 2 and bulge loop, the space holding lower piston 15 is formed between the upper end of bulge loop and lower cylinder sleeve 23, upper piston 13 and lower piston 15 all slip cap are located at impact tube 10 cylindrical, and the internal diameter of upper piston 13 and lower piston 15 is close to the maximum caliber of impact tube 10; Upper end and the lower end of upper cylinder sleeve 2 of upper piston 13 are the conical surface mutually mated, as shown in Figure 7, the conical surface of upper piston 13 is offered flow path groove 28, the groove milling 29 be convenient to hydraulic oil 9 and passed through all is offered in the cylindrical of upper piston 13 and lower surface, lower end and the upper end of lower cylinder sleeve 23 of lower piston 15 are the conical surface mutually mated, the conical surface of lower piston 15 is offered flow path groove 28, the groove milling 29 be convenient to hydraulic oil 9 and passed through all is offered in the cylindrical of lower piston 15 and upper surface.
Further, described top connection 1 arranges No. I O type circle sealing ring 3 with the connection of thread of upper cylinder sleeve 2, upper cylinder sleeve 2 arranges No. I O RunddichtringO back-up ring 11, No. III O RunddichtringO 12 with the connection of thread of transition joint 14, transition joint 14 arranges No. IV O RunddichtringO 16, No. II O RunddichtringO back-up ring 17 with the connection of thread of lower cylinder sleeve 23, and the connection of thread that lower cylinder sleeve 23 and tail overlap arranges No. VI O RunddichtringO 25; Described impact tube nut 8 arranges No. II O RunddichtringO 6 with the connection of thread of impact tube 10, and impact tube 10 arranges No. V O RunddichtringO 20 with the connection of thread of lower contact 24, and has locking nut 22 locking.
Further, described impact tube nut 8 upper end is interior hexagonal structure, cylindrical upper end groove arranges combined seal ring and upper cylinder sleeve 2 inwall forms slipper seal, as shown in Figure 5, No. I sealing ring 5 being sulfided by multiple (can preferably three) of this combined seal ring and configuration No. I, two ends seal back band and form.
Further, described impact tube nut 8 cylindrical lower end groove arranges No. I sand control baffle ring 7, and this No. I sand control baffle ring 7 is the annulus that the Teflon material in its side with slant cutting edge 30 manufactures, as shown in Figure 8.
Further, on the cylindrical of described impact tube 10 lower end, groove arranges combined seal ring and lower cylinder sleeve 23 endoporus forms slipper seal, as shown in Figure 6, No. II sealing ring 19 that this combined seal ring is sulfided by multiple (can preferably three) configures No. II, two ends sealing ring back band 18 and forms.
Further, described impact tube 10 cylindrical lower groove arranges No. II sand control baffle ring 21 and lower cylinder sleeve 23 inner hole, and this No. II sand control baffle ring is the annulus that the Teflon material in its side with slant cutting edge 30 manufactures, as shown in Figure 8.
Further, described tail cover has the spline housing 26 of groove milling 29 for internal diameter, the cylindrical of described lower contact 24 has the spline be made up of the convex key of monolithic, the groove milling 29 of spline housing 26 and the spline fitted of lower contact 24, form bumper jar moment of torsion and transmit auxiliary connection, form the globality that bumper jar moment of torsion transmits, high moment of torsion can be born.
Further, described upper piston 13 and/or lower piston 15 adopt 17-4PH material.
Operating principle of the present invention is: when hitting under hydraulic bidirectional bumper jar, press down bumper jar jacket structure, when upper piston 13 passes through the reducing 27 on impact tube 10, it is very little that reducing 27 gap on upper piston 13 internal diameter and impact tube 10 becomes, upper piston 13 lower end hydraulic oil 9 only flows to upper piston 13 upper end by the flow path groove 28 on the conical surface of upper piston 13 upper end, this creates the terminal hydraulic delay.This hydraulic delay stores energy in jacket structure.Once upper piston 13 have passed the reducing 27 of impact tube 10, the fault offset of storage, produces the effect of a hammering core shaft structure, produces an impact force to the bottom of instrument.In like manner, when bumper jar is in tension (that is, contraction state), when lower piston 15 passes through the reducing 27 on impact tube 10, lower piston 15 upper end hydraulic oil 9 only flows to lower piston 15 lower end by the flow path groove 28 on the conical surface of lower piston 15 lower end, so also can create hydraulic delay.Once the fault offset stored, bumper jar jacket structure is made promptly to accelerate to the top of stroke.This process produces an impact force, and it is equivalent to the pulling force that pipe pulls out by twice, and this impact force depends on the power of the instrument of acting on.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvement or distortion, these improve or distortion also should be considered as protection scope of the present invention.
Claims (8)
1. a coiled tubing hydraulic bidirectional bumper jar, comprise the coat part be made up of the top connection be threaded successively, upper cylinder sleeve, transition joint, lower cylinder sleeve, tail cover, with, the mandrel segment be made up of the impact tube nut be threaded successively, impact tube, lower contact, the inner chamber of mandrel segment and coat part is slidably connected, it is characterized in that: described impact tube is the reducer pipe seamlessly transitted that middle part caliber is greater than two ends caliber, and its outside annular space is full of hydraulic oil; The lower end of described upper cylinder sleeve, the upper end of lower cylinder sleeve are external screw thread, the two ends of transition joint are internal thread, the internal diameter of transition joint has bulge loop, annular space between this bulge loop and impact tube is oil duct, the space holding upper piston is formed between the lower end of upper cylinder sleeve and bulge loop, form the space holding lower piston between the upper end of bulge loop and lower cylinder sleeve, upper piston and the equal slip cap of lower piston are located at impact tube cylindrical, and the internal diameter of upper piston and lower piston is close to the maximum caliber of impact tube; Upper end and the lower end of upper cylinder sleeve of upper piston are the conical surface mutually mated, flow path groove offered by the conical surface of upper piston, the groove milling be convenient to hydraulic oil and passed through all is offered in the cylindrical of upper piston and lower surface, lower end and the upper end of lower cylinder sleeve of lower piston are the conical surface mutually mated, flow path groove offered by the conical surface of lower piston, and the groove milling be convenient to hydraulic oil and passed through all is offered in the cylindrical of lower piston and upper surface.
2. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1, it is characterized in that: the connection of thread of described top connection and upper cylinder sleeve arranges No. I O type circle sealing ring, the connection of thread of upper cylinder sleeve and transition joint arranges No. I O RunddichtringO back-up ring, No. III O RunddichtringO, the connection of thread of transition joint and lower cylinder sleeve arranges No. IV O RunddichtringO, No. II O RunddichtringO back-up ring, and the connection of thread that lower cylinder sleeve and tail overlap arranges No. VI O RunddichtringO; The connection of thread of described impact tube nut and impact tube arranges No. II O RunddichtringO, and the connection of thread of impact tube and lower contact arranges No. V O RunddichtringO, and has locking nut locking.
3. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1, it is characterized in that: described impact tube nut upper end is interior hexagonal structure, its cylindrical upper end groove arranges combined seal ring and upper inboard wall of cylinder liner forms slipper seal, and this combined seal ring seals back band by multiple No. I sealing ring sulfiding and configuration No. I, two ends and forms.
4. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1 or 3, it is characterized in that: described impact tube nut cylindrical lower end groove arranges No. I sand control baffle ring, this No. I sand control baffle ring is the annulus that the Teflon material in its side with slant cutting edge manufactures.
5. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1, it is characterized in that: on the cylindrical of described impact tube lower end, groove arranges combined seal ring and lower cylinder sleeve bore forms slipper seal, this combined seal ring configures No. II, two ends sealing ring back band by multiple No. II sealing ring sulfided and forms.
6. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1 or 5, it is characterized in that: described impact tube cylindrical lower groove arranges No. II sand control baffle ring and coordinates with lower cylinder sleeve bore, this No. II sand control baffle ring is the annulus that the Teflon material in its side with slant cutting edge manufactures.
7. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1, it is characterized in that: described tail cover has the spline housing of groove milling for internal diameter, the cylindrical of described lower contact has the spline be made up of the convex key of monolithic, the groove milling of spline housing and the spline fitted of lower contact, form bumper jar moment of torsion and transmit auxiliary connection.
8. a kind of coiled tubing hydraulic bidirectional bumper jar according to claim 1, is characterized in that: described upper piston and/or lower piston adopt 17-4PH material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094165.4A CN104712279B (en) | 2015-03-03 | 2015-03-03 | Coiled tubing hydraulic double-way jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510094165.4A CN104712279B (en) | 2015-03-03 | 2015-03-03 | Coiled tubing hydraulic double-way jar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104712279A true CN104712279A (en) | 2015-06-17 |
| CN104712279B CN104712279B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510094165.4A Active CN104712279B (en) | 2015-03-03 | 2015-03-03 | Coiled tubing hydraulic double-way jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712279B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457597A (en) * | 2018-02-28 | 2018-08-28 | 西南石油大学 | A kind of combination sealing formula long-life oscillation assembly |
| CN108571302A (en) * | 2017-03-13 | 2018-09-25 | 中国石油化工股份有限公司 | Bit freezing preventing mean |
| CN108868680A (en) * | 2018-04-11 | 2018-11-23 | 中国石油天然气集团有限公司 | Continuous bumper jar |
| CN109630056A (en) * | 2019-01-24 | 2019-04-16 | 西安石竹能源科技有限公司 | A kind of movable sealing structure of the mandrel of bumper jar and bumper jar based on the structure |
| CN112324378A (en) * | 2020-11-02 | 2021-02-05 | 海塔石油科技有限公司 | Pipe column vibration-impact hydraulic reinforcement stuck freeing device, stuck freeing equipment and stuck freeing method |
| CN113294110A (en) * | 2021-06-01 | 2021-08-24 | 合力（天津）能源科技股份有限公司 | Bidirectional hydraulic jarring method and system for improving drill sticking treatment effect |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571302A (en) * | 2017-03-13 | 2018-09-25 | 中国石油化工股份有限公司 | Bit freezing preventing mean |
| CN108457597A (en) * | 2018-02-28 | 2018-08-28 | 西南石油大学 | A kind of combination sealing formula long-life oscillation assembly |
| CN108868680A (en) * | 2018-04-11 | 2018-11-23 | 中国石油天然气集团有限公司 | Continuous bumper jar |
| CN108868680B (en) * | 2018-04-11 | 2020-11-06 | 中国石油天然气集团有限公司 | Continuous jar |
| CN109630056A (en) * | 2019-01-24 | 2019-04-16 | 西安石竹能源科技有限公司 | A kind of movable sealing structure of the mandrel of bumper jar and bumper jar based on the structure |
| CN109630056B (en) * | 2019-01-24 | 2023-09-01 | 西安石竹能源科技有限公司 | Dynamic seal structure of mandrel of jar and jar based on dynamic seal structure |
| CN112324378A (en) * | 2020-11-02 | 2021-02-05 | 海塔石油科技有限公司 | Pipe column vibration-impact hydraulic reinforcement stuck freeing device, stuck freeing equipment and stuck freeing method |
| CN113294110A (en) * | 2021-06-01 | 2021-08-24 | 合力（天津）能源科技股份有限公司 | Bidirectional hydraulic jarring method and system for improving drill sticking treatment effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104712279B (en) | 2017-01-18 |
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