CN204457614U - A kind of two disc type circulating valve that breaks - Google Patents
A kind of two disc type circulating valve that breaks Download PDFInfo
- Publication number
- CN204457614U CN204457614U CN201520079840.1U CN201520079840U CN204457614U CN 204457614 U CN204457614 U CN 204457614U CN 201520079840 U CN201520079840 U CN 201520079840U CN 204457614 U CN204457614 U CN 204457614U
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- China
- Prior art keywords
- mandrel
- rupture disk
- chamber
- circulation port
- power arm
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Abstract
The utility model discloses a kind of two disc type circulating valve that breaks, comprise the first rupture disk, the second rupture disk, power arm, circulation port, upper mandrel, lower mandrel, shear pin, seal, ball valve and shell; Shell upper end for opening female internal thread hole, lower end is that car has externally threaded outside threaded holes, the housing parts radial direction below described internal thread hole has circulation port; Second rupture disk is located at below circulation port, the second rupture disk and upper mandrel chamber; Upper mandrel is provided with a projection, and projection is positioned at mandrel chamber, and upper mandrel is provided with three sealing rings; The lower end of upper mandrel arranges lower mandrel, and the lateral surface of lower mandrel upper end is provided with groove, is provided with the shear pin with fit depressions in shell; Lower mandrel lower end hangs power arm, and power arm is connected with ball valve, power arm lower end seal with screwed joint part, and shell is provided with the first rupture disk with seal radial relative position; The utility model is simple to operate, reliable in action.
Description
Technical field
The utility model relates to oil and gas well testing-perforation integration of operation technical field, in more detail, is a kind of two disc type circulating valve that breaks.
Background technology
Along with the development and deeply of oil-gas exploration, formation testing layer geological structure becomes increasingly complex.Task difficulty is increasing, particularly in the Oil testing of deep-well, deep-well generally has the feature of high temperature, high pressure, not only will consider the safety of oil reservoir, oil well, down-hole string in the Oil testing to this well, and also will consider may produced problem and corresponding measure in work progress.
In prior art, in TCP or the WCP underbalance perforating stage, use RTTS packer setting in the airtight annular space be made up of oil pipe and production string, add the negative pressure that fluid cushion or low density killing fluid form the relatively stressor layer of head of liquid in oil pipe before perforation or drilling rod in oil pipe or drilling rod, and carry out the sealing of pressure testing checking oil pipe or drilling rod in oil pipe or drilling rod; Then suppress to the airtight annular space be made up of oil pipe and production string, LPR-N valve is opened under pressure, continues to suppress enforcement perforation; LPR-N valve is test main valve, and after perforation terminates, need annular space to suppress further, opened by RD circulating valve rupture disk, be communicated with by circulation port oil jacket, carry out kill job, after kill-job, deblocking RTTS packer pulls out of hole.
But LPR-N valve price is high, safeguards complicated, need preliminary filling purity to be 99.999% nitrogen, once the gas leakage of nitrogen chamber, LPR-N valve just can not complete switch motion, and the LPR-N valve more renewed just needs to make a trip, and wastes time and energy.
Summary of the invention
For above-mentioned technical problem, the utility model provides a kind of two disc type circulating valve that breaks, to overcome high, the difficult technological deficiency safeguarded of LPR-N valve price.
The technical scheme solving above technological deficiency is, a kind of two disc type circulating valve that breaks, comprises the first rupture disk, the second rupture disk, power arm, circulation port, hollow chamber, upper mandrel, lower mandrel, upper mandrel chamber, lower mandrel chamber, shear pin, seal, ball valve and shell; Described shell upper end for opening female internal thread hole, lower end is that car has externally threaded outside threaded holes, housing parts radial direction below the internal thread hole of described shell has circulation port, described circulation port is communicated with hollow chamber, and described hollow chamber is axially communicated with described internal thread hole and described outside threaded holes; Housing parts radial direction below described circulation port arranges the second rupture disk, described second rupture disk and described upper mandrel chamber; Described upper mandrel is provided with a projection, and described projection is positioned at described upper mandrel chamber; The lower end of described upper mandrel arranges described lower mandrel, and the lateral surface of described lower mandrel upper end is provided with groove, is provided with the shear pin with described fit depressions in described shell; Described lower mandrel lower end hangs described power arm, described power arm is connected with described ball valve, described power arm lower end is threaded described seal, is provided with the first rupture disk on the housing, described first rupture disk and described lower mandrel chamber with described seal radial relative position.
The technical scheme of further improvement is: described upper mandrel is provided with the first sealing ring, the second sealing ring and the 3rd sealing ring, when described projection is positioned at the top of upper mandrel chamber, described first sealing ring is positioned at above circulation port, described second sealing ring is positioned at below circulation port, and described 3rd sealing ring is positioned on described projection.
The technical scheme of further improvement is: the fracture pressure value of described first rupture disk is lower than perforation force value, and the fracture pressure value of described second rupture disk is higher than perforation force value.
The superior effect of two disc type circulating valve that breaks described in the utility model is:
1, adopt the structure of two rupture disk, effectively prevent the gas leakage of LPR-N valve and cause the technical problem making a trip and waste time and energy;
2, describedly two break that disc type circulating valve is simple to operate, reliable in action, only need change necessary sealing ring, rupture disk is just reusable, and maintaining is simple, save human and material resources, financial resources, decrease personnel labor intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of two disc type circulating valve that breaks described in the utility model.
Description of reference numerals is as follows:
1-shell, the upper mandrel of 2-, mandrel under 3-, 4-first rupture disk, 5-second rupture disk, 6-power arm, 7-seal, 8-shear pin, 9-ball valve, 10-first sealing ring, 11-second sealing ring, 12-the 3rd sealing ring, 13-circulation port, the upper mandrel chamber of 14-, mandrel chamber under 15-, 16-hollow chamber, 21-projection.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.
As shown in Figure 1, a kind of two disc type circulating valve that breaks comprises the first rupture disk 4, second rupture disk 5, power arm 6, circulation port 13, hollow chamber 16, upper mandrel 2, lower mandrel 3, upper mandrel chamber 14, lower mandrel chamber 15, shear pin 8, seal 7, ball valve 9 and shell 1; Described shell 1 upper end for opening female internal thread hole, lower end is that car has externally threaded outside threaded holes, housing parts radial direction below described internal thread hole has circulation port 13, circulation port 13 is communicated with hollow chamber 16, and hollow chamber 16 is axially communicated with described internal thread hole and described outside threaded holes; Housing parts radial direction below circulation port 13 arranges the second rupture disk 5, second rupture disk 5 and is communicated with upper mandrel chamber 14; Upper mandrel 2 is provided with a projection 21, and projection 21 is positioned at mandrel chamber 14; The lower end of upper mandrel 2 arranges lower mandrel 3, and the lateral surface of lower mandrel 3 upper end is provided with groove, is provided with the shear pin 8 with described fit depressions in shell 1; Lower mandrel 3 lower end hangs power arm 6, and power arm 6 is connected with ball valve 9, and power arm 6 lower end has been threaded seal 7, and shell 1 diametrically with seal 7 is provided with the first rupture disk 4, first rupture disk 4 and is communicated with lower mandrel chamber 15 in position;
Further: upper mandrel 2 is provided with the first sealing ring 10, second sealing ring 11 and the 3rd sealing ring 12, when projection 21 is positioned at the upper end of upper mandrel chamber 14, first sealing ring 10 is positioned at above circulation port 13, second sealing ring 11 is positioned at below circulation port 13,3rd sealing ring 12 is positioned on projection 21,3rd sealing ring 12, for sealing projection 21 and the space of shell 1, prevents mud from entering in mandrel chamber 14;
Further: the fracture pressure value of the first rupture disk 4 is lower than perforation force value, and the fracture pressure value of the second rupture disk 5 is higher than perforation force value.
The workflow of two disc type circulating valve that breaks described in the utility model is as follows:
Described in the utility model two break disc type circulating valve under enter oil-gas Layer before, ball valve 9 is in closed condition, now according to strata pressure value pre-add fluid cushion or low density slurries in oil pipe of oil-gas Layer, when oil pipe arrives oil-gas Layer, build the pressure the sealing verified in oil pipe, after sealing performance is qualified, RTTS packer setting, closes wellhead blowout preventor, carry out annular space to suppress, when annular pressure value reach the first rupture disk 4 break value time, first rupture disk 4 breaks, annular space mud enters lower mandrel chamber 15 by the first rupture disk 4, promote lower mandrel 3 moves, lower mandrel 3 moves with on power arm 6, power arm 6 moves with on seal 7, move along with on power arm 6, ball valve 9 is opened gradually, instantly after mandrel 3 engages with upper mandrel 2, lower mandrel 3 drives upper mandrel 2 to move upward, when ball valve 9 is fully opened, seal 7 is by the first rupture disk 4 shutoff, shear pin 8 simultaneously in shell 1 enters in the groove of lower mandrel 3, the lower mandrel 2 of locking, complete the opening action of ball valve 9.
Continue to suppress, pressure is passed to perforating system by ball valve 9 by mud, completes perforation.
After perforation completes, annular space second time is suppressed, suppress pressure and be greater than perforation pressure, when suppress pressure be greater than the second rupture disk 5 break value time, the second rupture disk 5 breaks, mud enters upper mandrel chamber 14 by the second rupture disk 5, because the first rupture disk 4 is by seal 7 shutoff, upper mandrel 2 and lower mandrel 3, under the pressure reduction of upper mandrel chamber 14 and lower mandrel chamber 15, move downward in advance, under the effect of difference force, shear pin 8 is cut off; Subsequently, upper mandrel 2, lower mandrel 3, power arm 6 move downward together with the assembly of seal 7, ball valve 9 is closed by power arm 6 gradually, when ball valve 9 is closed, circulation port 13 is opened, and seal 7 moves past the first rupture disk 4 simultaneously, and mud enters lower mandrel chamber 15, now go up mandrel chamber 14 and lower mandrel chamber 15 pressure reduction is zero, the assembly of upper mandrel 2, lower mandrel 3, power arm 6 and seal 7 is not in motion.
Circulate to the mud in oil pipe, the mud in oil pipe returns to well head by circulation port 13 from annular space, completes and washes kill-job.
The utility model is not limited to above-mentioned embodiment, and when not deviating from flesh and blood of the present utility model, any distortion that it may occur to persons skilled in the art that, improvement, replacement all fall into scope of the present utility model.
Claims (3)
1. two disc type circulating valve that breaks, is characterized in that, comprise the first rupture disk, the second rupture disk, power arm, circulation port, hollow chamber, upper mandrel, lower mandrel, upper mandrel chamber, lower mandrel chamber, shear pin, seal, ball valve and shell; Described shell upper end for opening female internal thread hole, lower end is that car has externally threaded outside threaded holes, housing parts radial direction below the internal thread hole of described shell has circulation port, described circulation port is communicated with hollow chamber, and described hollow chamber is axially communicated with described internal thread hole and described outside threaded holes; Housing parts radial direction below described circulation port arranges the second rupture disk, described second rupture disk and described upper mandrel chamber; Described upper mandrel is provided with a projection, and described projection is positioned at described upper mandrel chamber; The lower end of described upper mandrel arranges described lower mandrel, and the lateral surface of described lower mandrel upper end is provided with groove, is provided with the shear pin with described fit depressions in described shell; Described lower mandrel lower end hangs described power arm, described power arm is connected with described ball valve, described power arm lower end is threaded described seal, is provided with the first rupture disk on the housing, described first rupture disk and described lower mandrel chamber with described seal radial relative position.
2. the two disc type circulating valve that breaks of one according to claim 1, it is characterized in that, described upper mandrel is provided with the first sealing ring, the second sealing ring and the 3rd sealing ring, when described projection is positioned at the top of upper mandrel chamber, described first sealing ring is positioned at above circulation port, described second sealing ring is positioned at below circulation port, and described 3rd sealing ring is positioned on described projection.
3. the two disc type circulating valve that breaks of one according to claim 1 and 2, it is characterized in that, the fracture pressure value of described first rupture disk is lower than perforation force value, and the fracture pressure value of described second rupture disk is higher than perforation force value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079840.1U CN204457614U (en) | 2015-02-04 | 2015-02-04 | A kind of two disc type circulating valve that breaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520079840.1U CN204457614U (en) | 2015-02-04 | 2015-02-04 | A kind of two disc type circulating valve that breaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457614U true CN204457614U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520079840.1U Expired - Fee Related CN204457614U (en) | 2015-02-04 | 2015-02-04 | A kind of two disc type circulating valve that breaks |
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| Country | Link |
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| CN (1) | CN204457614U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306859A (en) * | 2017-07-28 | 2019-02-05 | 深圳市百勤石油技术有限公司 | A kind of medicine-filling device of no pipeline oil jacket annulus |
| CN111364933A (en) * | 2020-01-11 | 2020-07-03 | 中石化石油工程技术服务有限公司 | Sand control supporting device |
| WO2021225962A1 (en) * | 2020-05-03 | 2021-11-11 | Schlumberger Technology Corporation | Reclosable circulation valve for well completion |
| CN109306859B (en) * | 2017-07-28 | 2024-04-26 | 百勤能源科技（惠州）有限公司 | Pipeline-free type medicine injection device for oil sleeve annulus |
-
2015
- 2015-02-04 CN CN201520079840.1U patent/CN204457614U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306859A (en) * | 2017-07-28 | 2019-02-05 | 深圳市百勤石油技术有限公司 | A kind of medicine-filling device of no pipeline oil jacket annulus |
| CN109306859B (en) * | 2017-07-28 | 2024-04-26 | 百勤能源科技（惠州）有限公司 | Pipeline-free type medicine injection device for oil sleeve annulus |
| CN111364933A (en) * | 2020-01-11 | 2020-07-03 | 中石化石油工程技术服务有限公司 | Sand control supporting device |
| CN111364933B (en) * | 2020-01-11 | 2024-01-30 | 中国石油化工集团有限公司 | Sand prevention supporting device |
| WO2021225962A1 (en) * | 2020-05-03 | 2021-11-11 | Schlumberger Technology Corporation | Reclosable circulation valve for well completion |
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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: 20150708 Termination date: 20190204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |