CN204552658U - Self-balancing gaseous-pressure driving bridging plug setting tool - Google Patents
Self-balancing gaseous-pressure driving bridging plug setting tool Download PDFInfo
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- CN204552658U CN204552658U CN201520246258.XU CN201520246258U CN204552658U CN 204552658 U CN204552658 U CN 204552658U CN 201520246258 U CN201520246258 U CN 201520246258U CN 204552658 U CN204552658 U CN 204552658U
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Abstract
The utility model discloses a kind of self-balancing gaseous-pressure driving bridging plug setting tool, ignition module is arranged on cartridge case upper end, cartridge case lower end and upper piston cylinder upper end are sealedly and fixedly connected, bridging plug gunpowder is provided with in cartridge case, piston is arranged in upper piston cylinder, upper piston cylinder lower end and transition joint are sealedly and fixedly connected, be Medium Oil in upper piston cylinder between piston and transition joint, and transition joint is positioned at lower piston cylinder, transition joint lower end and lower piston cylinder are sealed and matched, annular space is formed between transition joint and lower piston cylinder, Medium Oil passage end in transition joint is communicated to and is provided with in the upper piston cylinder of Medium Oil, the other end is communicated to annular space, lower contact upper end and lower piston cylinder are sealedly and fixedly connected, lower end and thrust cylinder are sealedly and fixedly connected, piston rod is fixedly connected in transition joint through lower contact inner chamber.The utility model can make the power that in well, fluid pressure acts in lower contact cancel out each other, and makes the impact not being subject to fluid pressure in well during lower contact campaign.
Description
Technical field
The utility model relates to a kind of self-balancing gaseous-pressure driving bridging plug setting tool, belongs to oil-gas field development technical field.
Background technology
Bridging plug is applied very extensive in Oil/gas Well sealing, is that Pressure Curve in Oil Testing Well shutoff tries layer, returns the main sealing technique of formation testing on carrying out.The special layers positions such as the dried layer, water layer, gas-bearing formation and the abnormal high pressure well that occur in middle-shallow layer formation testing construction at present, for convenience of follow-up formation testing, plugged and abandoned layer position, usually adopt bridging plug to carry out sealing, terminate well simultaneously also adopt bridging plug to shunt in a well for part formation testing.
Bridging plug fixes on inside pipe casing by the outside expansible anchor of slips, and packing element forms the sealing with internal surface of sleeve pipe by extrusion expansion.The extruding of bridging plug and expansion process generally need the setting tool filling in well by means of conveying-bridge to realize.
Bridging plug setting tool conventional at present mainly contains the gaseous-pressure driving relying on cable transfer, the hydraulic push type relying on oil pipe or Drill-pipe conveyed and mechanical setting type three kinds, such as, the little latus rectum oil-pipe bridge plug of a kind of hydraulic setting formula disclosed in China Patent Publication No. 103806864A, publication date is 2014-05-21.Machinery setting type bridging plug setting tool reliability is low, particularly for part high angle hole and horizontal well, bridging plug cannot be made to set completely; Hydraulic push type bridging plug setting tool uses oil pipe or Drill-pipe conveyed due to needs, so efficiency of construction is lower, and during the construction of hydraulic-pressure bridge plug setting tool, because circumstances is complicated, easily occurs situation about being hampered in the process that bridging plug is gone into the well; Conventional cable transfer gaseous-pressure driving bridging plug setting tool adopts cable transfer mode to enter well, and efficiency of construction is high, assembles easy.But because structure design is reasonable not, instrument is subject to the impact of the opposition that fluid pressure produces in well all the time in the process of extruding bridging plug, could extrude bridging plug motion after the pressure that powder burning produces must overcome the reaction force of borehole pressure.When borehole pressure is higher than certain value, conventional gaseous-pressure driving bridging plug setting tool cannot make bridging plug set completely, cause operation failure.
Summary of the invention
The purpose of this utility model is the problems referred to above overcoming prior art existence, provides a kind of self-balancing gaseous-pressure driving bridging plug setting tool.The utility model can make the power that in well, fluid pressure acts in lower contact cancel out each other, and makes the impact not being subject to fluid pressure in well during lower contact campaign.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of self-balancing gaseous-pressure driving bridging plug setting tool, it is characterized in that: comprise ignition module, cartridge case, piston, upper piston cylinder, transition joint, lower piston cylinder, lower contact, piston rod and thrust cylinder, ignition module is arranged on cartridge case upper end, cartridge case lower end and upper piston cylinder upper end are sealedly and fixedly connected, bridging plug gunpowder is provided with in cartridge case, piston is arranged in upper piston cylinder, upper piston cylinder lower end and transition joint are sealedly and fixedly connected, be Medium Oil in upper piston cylinder between piston and transition joint, and transition joint is positioned at lower piston cylinder, transition joint lower end and lower piston cylinder are sealed and matched, annular space is formed between transition joint and lower piston cylinder, Medium Oil passage is provided with in transition joint, Medium Oil passage end is communicated to and is provided with in the upper piston cylinder of Medium Oil, the other end is communicated to annular space, lower contact upper end and lower piston cylinder are sealedly and fixedly connected, lower end and thrust cylinder are sealedly and fixedly connected, piston rod is fixedly connected in transition joint through lower contact inner chamber, and piston rod coordinates with thrust cylinder inner wall sealing.
Described ignition module comprises pressure cap, igniting coyote hole and back-up ring, and pressure cap is arranged on igniting coyote hole upper end, and back-up ring is arranged on ignition charge indoor, igniting coyote hole and cartridge case inner space.
Described cartridge case has relief hole, in relief hole, is provided with pressure release assembly.
Described pressure release assembly comprises clamp nut, pressure release bolt and valve seat, and clamp nut and pressure release bolt are arranged on valve seat.
Described transition joint is consistent with the sealing surface of lower piston cylinder and the size of seal contact face of thrust cylinder and piston rod.
Described piston rod is provided with at least two pressure transmission holes.
Described thrust cylinder is at least provided with two sump pits.
Be connected with elastic cylindrical pin between described transition joint with lower piston cylinder.
Described Medium Oil passage is provided with the screw for regulating rate of pressure change with the connectivity part of the upper piston cylinder being provided with Medium Oil.
Employing the utility model has the advantage of:
One, structure of the present utility model is adopted, make lower contact band dynamicthrust cylinder and the motion of lower piston cylinder, the power that in well, fluid pressure acts in lower contact can be made like this to cancel out each other, make the impact not being subject to fluid pressure in well during lower contact campaign, therefore the present invention may be used for setting bridging plug in high-pressure well.
Two, the bridging plug of ring structure is broken for adopting, unfixing between upper slips and body, therefore can not act on effectively on bridging plug card in bridging plug goes into the well process, otherwise may cause and set by mistake, major accident occurs; Be connected with elastic cylindrical pin between the utility model transition joint with lower piston cylinder, make piston rod and thrust cylinder can not produce relative motion before bridging plug sets, prevent thrust cylinder in process gone into the well by instrument from acting directly on bridging plug slips, thus prevent bridging plug in the process of going into the well from setting by mistake.
Three, utility model is more simple than domestic similar-type products structure, operating efficiency is high, device reliability is high, and safe effect is good.This utility model can improve the overall ability to provide the auxiliary items of my company, for user overcomes a difficulty, also can embody my the unique technology advantage of company in the product development of oil field simultaneously.
Four, in the utility model, transition joint is consistent with the sealing surface of lower piston cylinder and the size of seal contact face of thrust cylinder and piston rod, protects the power that in well, fluid pressure acts in lower contact further and cancels out each other.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Be labeled as in figure: 1, pressure cap, 2, igniting coyote hole, 3, back-up ring, 4, cartridge case, 5, piston, 6, upper piston cylinder, 7, screw, 8, transition joint, 9, pin, 10, lower piston cylinder, 11, lower contact, 12, thrust cylinder, 13, piston rod, 14, valve seat, 15, pressure release bolt, 16, clamp nut.
Detailed description of the invention
Embodiment 1
A kind of self-balancing gaseous-pressure driving bridging plug setting tool, comprise ignition module, cartridge case 4, piston 5, upper piston cylinder 6, transition joint 8, lower piston cylinder 10, lower contact 11, piston rod 13 and thrust cylinder 12, ignition module is arranged on cartridge case 4 upper end, cartridge case 4 lower end and upper piston cylinder 6 upper end are sealedly and fixedly connected, bridging plug gunpowder is provided with in cartridge case 4, piston 5 is arranged in upper piston cylinder 6, upper piston cylinder 6 lower end and transition joint 8 are sealedly and fixedly connected, be Medium Oil in upper piston cylinder 6 between piston 5 and transition joint 8, and transition joint 8 is positioned at lower piston cylinder 10, transition joint 8 lower end and lower piston cylinder 10 are sealed and matched, annular space is formed between transition joint 8 and lower piston cylinder 10, Medium Oil passage is provided with in transition joint 8, Medium Oil passage end is communicated to and is provided with in the upper piston cylinder 6 of Medium Oil, the other end is communicated to annular space, lower contact 11 upper end and lower piston cylinder 10 are sealedly and fixedly connected, lower end and thrust cylinder 12 are sealedly and fixedly connected, piston rod 13 is fixedly connected in transition joint 8 through lower contact 11 inner chamber, and piston rod 13 coordinates with thrust cylinder 12 inner wall sealing.
In this enforcement, described ignition module comprises pressure cap 1, igniting coyote hole 2 and back-up ring 3, and pressure cap 1 is arranged on igniting coyote hole 2 upper end, and back-up ring 3 is arranged in igniting coyote hole 2, igniting coyote hole 2 and cartridge case 4 inner space.
In this enforcement, described cartridge case 4 has relief hole, in relief hole 4, is provided with pressure release assembly.
In this enforcement, described pressure release assembly comprises clamp nut 16, pressure release bolt 15 and valve seat 14, and clamp nut 16 and pressure release bolt 15 are arranged on valve seat 14.
In this enforcement, described transition joint 8 should be consistent with the size of seal contact face of piston rod 13 with thrust cylinder 12 with the sealing surface of lower piston cylinder 10.
In this enforcement, described piston rod 13 is provided with at least two pressure transmission holes.
In this enforcement, described thrust cylinder 12 is at least provided with two sump pits.
In this enforcement, described transition joint 8 is connected with elastic cylindrical pin with between lower piston cylinder 10.
In this enforcement, described Medium Oil passage is provided with the screw 7 for regulating rate of pressure change with the connectivity part of the upper piston cylinder being provided with Medium Oil.
Embodiment 2
Below in conjunction with accompanying drawing, clear, complete description is carried out to the technical scheme in the present embodiment.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on embodiment of the present utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of self-balancing gaseous-pressure driving bridging plug setting tool, comprises ignition module, pressure release assembly, cartridge case, piston, upper piston cylinder, screw, transition joint, pin, lower piston cylinder, lower contact, piston rod, thrust cylinder composition.
In this enforcement, described transition joint should there is the internal thread of mounting screw, transition joint diameter of bore is changed from small to big;
In this enforcement, described piston rod should there be at least two pressure transmission holes.
In this enforcement, at least two pins between described transition joint and lower piston cylinder, should be had to fix.
In this enforcement, described thrust cylinder at least should process two troughs, discharge opeing when facilitating movement of tool.
In this enforcement, described upper piston cylinder planted agent fills hydraulic oil or machine oil.
In this enforcement, described transition joint should be consistent with the size of seal contact face of thrust cylinder and piston rod with the sealing surface of lower piston cylinder.
Refer to Fig. 1, self-balancing gaseous-pressure driving bridging plug setting tool comprises the ignition module that pressure cap 1, igniting coyote hole 2 and back-up ring 3 form and the pressure release assembly be made up of clamp nut 16, pressure release bolt 15, valve seat 14.
Described ignition module is connected with cartridge case 4, and pressure release assembly is arranged in the relief hole on cartridge case 4.Cartridge case 4 is connected with upper piston cylinder 6 upper end, and piston 5 is arranged in piston cylinder 6, and upper piston cylinder 6 lower end is connected with transition joint 8, and mounting screw 7 in transition joint 8, fills hydraulic oil in upper piston cylinder 6;
Transition joint 8 and piston rod 13 are threaded connection, lower contact 11 and lower piston cylinder 10, thrust cylinder 12 are threaded connection, lower contact 11 and thrust cylinder 12 are enclosed within piston rod 13, and piston rod 13 connects bridging plug by joint, and lower piston cylinder 10 is fixed by pin 9 with transition joint 8.
Pressure balance principle: lower contact 11 and lower piston cylinder 10, thrust cylinder 12 are threaded connection, form an entirety, because lower piston cylinder 10 is identical with the sealing surface diameter that thrust cylinder 12 affects by well liquid, in well, to act on lower contact 11, lower piston cylinder 10 and thrust cylinder 12 active force up and down on the whole just equal for fluid pressure, is just no longer subject to the impact of well hydraulic coupling during the motion such as lower contact 11.
Adopt self-balancing gaseous-pressure driving bridging plug setting tool to set bridging plug to comprise the steps:
Set operation: one, two, three bridging plug gunpowder is installed in ignition module and cartridge case, ground energising is successively ignited one, two, three bridging plug gunpowder, the gas push piston that powder burning produces moves downward, hydraulic oil in piston promotion upper piston cylinder or machine oil are by the downward piston cylinder motion of the aperture in transition joint, hydraulic oil promotes lower contact after entering lower piston cylinder and drives lower piston cylinder and thrust cylinder to move downward, and realizes setting by thrust cylinder extruding bridging plug.
Claims (9)
1. a self-balancing gaseous-pressure driving bridging plug setting tool, it is characterized in that: comprise ignition module, cartridge case (4), piston (5), upper piston cylinder (6), transition joint (8), lower piston cylinder (10), lower contact (11), piston rod (13) and thrust cylinder (12), ignition module is arranged on cartridge case (4) upper end, cartridge case (4) lower end and upper piston cylinder (6) upper end are sealedly and fixedly connected, cartridge case is provided with bridging plug gunpowder in (4), piston (5) is arranged in upper piston cylinder (6), upper piston cylinder (6) lower end and transition joint (8) are sealedly and fixedly connected, be Medium Oil in upper piston cylinder (6) between piston (5) and transition joint (8), and transition joint (8) is positioned at lower piston cylinder (10), transition joint (8) lower end and lower piston cylinder (10) are sealed and matched, annular space is formed between transition joint (8) and lower piston cylinder (10), transition joint is provided with Medium Oil passage in (8), Medium Oil passage end is communicated to and is provided with in the upper piston cylinder (6) of Medium Oil, the other end is communicated to annular space, lower contact (11) upper end and lower piston cylinder (10) are sealedly and fixedly connected, lower end and thrust cylinder (12) are sealedly and fixedly connected, piston rod (13) is fixedly connected in transition joint (8) through lower contact (11) inner chamber, and piston rod (13) coordinates with thrust cylinder (12) inner wall sealing.
2. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 1, it is characterized in that: described ignition module comprises pressure cap (1), igniting coyote hole (2) and back-up ring (3), pressure cap (1) is arranged on igniting coyote hole (2) upper end, back-up ring (3) is arranged in igniting coyote hole (2), igniting coyote hole (2) and cartridge case (4) inner space.
3. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 1 and 2, is characterized in that: (4) have relief hole with described cartridge case, are provided with pressure release assembly in relief hole.
4. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 3, it is characterized in that: described pressure release assembly comprises clamp nut (16), pressure release bolt (15) and valve seat (14), clamp nut (16) and pressure release bolt (15) are arranged on valve seat (14).
5. the self-balancing gaseous-pressure driving bridging plug setting tool according to claim 1,2 or 4, is characterized in that: described transition joint (8) is consistent with the sealing surface of lower piston cylinder (10) and the size of seal contact face of thrust cylinder (12) and piston rod (13).
6. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 5, is characterized in that: (13) are provided with at least two pressure transmission holes to described piston rod.
7. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 6, is characterized in that: described thrust cylinder (12) is at least provided with two sump pits.
8. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 7, is characterized in that: be connected with elastic cylindrical pin between described transition joint (8) with lower piston cylinder (10).
9. self-balancing gaseous-pressure driving bridging plug setting tool according to claim 8, is characterized in that: described Medium Oil passage is provided with the screw (7) for regulating rate of pressure change with the connectivity part of the upper piston cylinder (6) being provided with Medium Oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246258.XU CN204552658U (en) | 2015-04-22 | 2015-04-22 | Self-balancing gaseous-pressure driving bridging plug setting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246258.XU CN204552658U (en) | 2015-04-22 | 2015-04-22 | Self-balancing gaseous-pressure driving bridging plug setting tool |
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| CN204552658U true CN204552658U (en) | 2015-08-12 |
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| CN201520246258.XU Active CN204552658U (en) | 2015-04-22 | 2015-04-22 | Self-balancing gaseous-pressure driving bridging plug setting tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178330A (en) * | 2017-07-27 | 2017-09-19 | 中国科学技术大学 | A kind of underground bridging plug impact loading device |
| CN109281635A (en) * | 2018-09-29 | 2019-01-29 | 西南石油大学 | A kind of explosion excitation formula downhole annular blowout preventer |
| CN110485957A (en) * | 2019-08-20 | 2019-11-22 | 成都若克石油技术开发有限公司 | Disposable setting tool |
| CN115680533A (en) * | 2021-07-23 | 2023-02-03 | 中国石油天然气集团有限公司 | High-thrust bridge plug setting tool |
-
2015
- 2015-04-22 CN CN201520246258.XU patent/CN204552658U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178330A (en) * | 2017-07-27 | 2017-09-19 | 中国科学技术大学 | A kind of underground bridging plug impact loading device |
| CN109281635A (en) * | 2018-09-29 | 2019-01-29 | 西南石油大学 | A kind of explosion excitation formula downhole annular blowout preventer |
| CN110485957A (en) * | 2019-08-20 | 2019-11-22 | 成都若克石油技术开发有限公司 | Disposable setting tool |
| CN115680533A (en) * | 2021-07-23 | 2023-02-03 | 中国石油天然气集团有限公司 | High-thrust bridge plug setting tool |
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