CN202946094U - Double-power-source packer for air-tight seal detection of oil sleeve - Google Patents
Double-power-source packer for air-tight seal detection of oil sleeve Download PDFInfo
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- CN202946094U CN202946094U CN 201220655169 CN201220655169U CN202946094U CN 202946094 U CN202946094 U CN 202946094U CN 201220655169 CN201220655169 CN 201220655169 CN 201220655169 U CN201220655169 U CN 201220655169U CN 202946094 U CN202946094 U CN 202946094U
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- packing assembly
- core pipe
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Abstract
The utility model discloses a double-power-source packer for air-tight seal detection of an oil sleeve. The double-power-source packer is assembled by a pneumatic control packing assembly and a hydraulic control packing assembly. The double-power-source packer for the air-tight seal detection of the oil sleeve is last detection before the oil sleeve is put into a well, is safer and more reliable, and is an important guarantee of safety production. Mixed inert gas of helium and nitrogen serves as a detection medium, and is safe and non-toxic, and the double-power-source packer does not corrode or damage the oil sleeve, and is clean and safe. The double-power-source packer works rapidly, cannot have a great influence on the working time of the oil sleeve, and is suitable for all the specifications of the oil sleeves for oilfield working, and each detection time is about 2.5min.
Description
Technical field
The utility model relates to a kind of oilfield well completion Casing Detection rig tool, and particularly a kind of tubing and casing hermetic seal detects the dual power source packer.
Background technology
Along with the large-scale development of deep-well, horizontal well natural gas and the foundation of various types of underground natural gas storage tanks, more and more higher to the sealing requirements of tubing and casing and surface line.Investigation finds that more than 18%, there is leakage phenomenon in the brand-new airtight closure of oil casing, does not go into the well after testing and will cause huge loss.Leak for reducing to greatest extent special gas tightness screw thread the potential risk that causes the accident, the hermetic seal of special screw thread is detected in China's part oil field has become mandatory testing requirement.
The hermetic seal of tubing and casing detects generally to be carried out in factory, utilizes compressed air can accurately detect the gas tightness of tubing and casing.But, to sample hermetic seal test of the tubing and casing of dispatching from the factory, can not accomplish that product examines entirely, can not the simulation well downforce and gas-condition carry out air-sealed experiment.Oil field at home, not enough to detecting the oil pipe hermetic seal means, air low pressure commonly used detects the sampling test of sealing, can not reach the purpose of quality control, because in gas well, the do not hunt leak full well result of losing of not hunting leak of becoming estranged of a button is the same danger.Even detect qualified hermetic seal tubing and casing in factory, due to factors such as colliding with in the machining tolerance between tubing and casing, transportation, microcorrosions, particularly as above detain repeatedly Reusability etc. of the unreasonable and oil pipe of moment of torsion in the tubing and casing operation process under high-pressure gas well, very easily cause sealing performance to lose efficacy.
The utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly detects that the caliber scope is large, efficient is high, safe and reliable, can not detect the dual power source packer to the tubing and casing hermetic seal of tubing and casing injury.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
a kind of tubing and casing hermetic seal detects the dual power source packer, comprises gas control packing assembly and hydraulic control packing assembly, and described gas control packing assembly comprises: high-pressure air pipe, top connection, upper adjustment joint, upper core pipe, described hydraulic control packing assembly comprises: in establish the lower core pipe of inlet opening, the bottom of described upper core pipe is provided with the through hole that is communicated with high-pressure air pipe, in described through hole, gas throttling valve is housed, be provided with the high-pressure liquid tube that lower high pressure adapter is equipped with in a bottom in described high-pressure air pipe, the top of described lower core pipe is threaded connection the lower adjustment joint that is communicated with described inlet opening, this time adjusted nipple tip and has been threaded connection transit joint, be provided with a top in this transit joint the high pressure coil pipe of high pressure adapter is housed, this high pressure coil pipe is packed in the top of described lower adjustment joint by lower high pressure connection, and be communicated with the inlet opening in described lower core pipe, described lower high pressure adapter and upper high pressure adapter are connected, the lower end of described upper core pipe and transit joint are threaded connection described gas control packing assembly and hydraulic control packing assembly are fixedly mounted with.
Improved, the upper end of described high-pressure air pipe is packed in described top connection by upper high pressure connection.The firm of high-pressure air pipe head guaranteed in upper high pressure connection.
Improved, the lower end of lower core pipe has been threaded connection starting taper, and is more smooth and easy when this starting taper makes tubing and casing hermetic seal detection dual power source packer enter tubing and casing.
Improved, in described top connection, suspension bracket is housed.Suspension bracket is convenient to the lifting that the tubing and casing hermetic seal detects the dual power source packer.
Preferably, described suspension bracket upper end is provided with lifting eye.This lifting eye is convenient to install steel wire rope sling.
The beneficial effects of the utility model:
It is that tubing and casing enters the front last detection together of well that this tubing and casing hermetic seal detects the dual power source packer, more safe and reliable, is the important guarantee of safety in production.The mixed inert gas that utilizes helium and nitrogen is as detecting medium, safety non-toxic, to tubing and casing without burn into not damaged, cleaning, safety.Operation is rapid, and every button detection time is two minutes halfs approximately, can not cause large impact to the tubing and casing activity duration, are fit to all tubing and casing specifications of oil field operation.
Description of drawings
The tubing and casing hermetic seal that Fig. 1 provides for the utility model detects the decomposition texture schematic diagram of dual power source packer;
The tubing and casing hermetic seal that Fig. 2 provides for the utility model detects the dual power source packer and is lowered to position view after sleeve pipe.
The specific embodiment
From the utility model embodiment illustrated in figures 1 and 2 as can be known:
The hermetic seal of the utility model tubing and casing detects the dual power source packer, comprises gas control packing assembly and hydraulic control packing assembly.
gas control packing assembly comprises: from top to bottom be threaded successively, be placed with the top connection 5 of high-pressure air pipe 2 in it, upper adjustment joint 6, upper core pipe 7, be fixedly mounted with core pipe 7 tops and be positioned at the upper gland 8 that raises under whole joint 6, be arranged on and be positioned at its top under gland 8 on core pipe 7, the middle part, the bottom is respectively arranged with the upper packing element 11 of upper isolating ring 10, be sleeved on the upper spring 9 that is placed on core pipe 7 in gland 8, be sleeved on that on core pipe 7, its upper end is placed in packing element 11 and upper gland 8, the top is positioned at the upper piston 29 under upper spring 9, be provided with the radially venthole 12 that is communicated with high-pressure air pipe 2 on upper core pipe 7, this venthole 12 is positioned at the inside, lower end of upper piston 29,
hydraulic control packing assembly comprises: in establish the lower core pipe 21 of inlet opening, be packed in the lower gland 26 of lower core pipe 21 bottoms, be arranged on to be positioned on lower core pipe 21 and press down its top on cover 26, the middle part, the bottom is respectively arranged with the lower rubber cylinder 25 of lower isolating ring 24, be sleeved on the lower spring 27 that is placed on lower core pipe 21 in lower gland 26, be sleeved on that on lower core pipe 21, its lower end is placed in lower rubber cylinder 25 and lower gland 26, the bottom is positioned at the lower piston 23 on lower spring 27, be provided with the radially fluid hole 22 that is communicated with inlet opening on lower core pipe 21, this fluid hole 22 is positioned at the inside, upper end of lower piston 23,
the bottom of upper core pipe 7 is provided with the through hole 13 that is communicated with high-pressure air pipe 2, gas throttling valve 14 is housed in through hole 13, be provided with a bottom in high-pressure air pipe 2 high-pressure liquid tube 3 of lower high pressure adapter 15 is housed, high-pressure liquid tube 3 passes in high-pressure air pipe 2, form a concentric double pipe line with high-pressure air pipe 2, the top of lower core pipe 21 is threaded connection the lower adjustment joint 20 that is communicated with inlet opening, this time adjustment joint 20 tops have been threaded connection transit joint 18, be provided with a top in this transit joint 18 the high pressure coil pipe 17 of high pressure adapter 16 is housed, this high pressure coil pipe 17 is packed in the top of lower adjustment joint 20 by lower high pressure connection 19, and be communicated with the inlet opening in lower core pipe 21, lower high pressure adapter 15 is connected with upper high pressure adapter 16, the lower end of upper core pipe 7 and transit joint 18 are threaded connection gas control packing assembly and hydraulic control packing assembly are fixedly mounted with.
The upper end of high-pressure air pipe 2 is packed in top connection 5 by upper high pressure connection 4.Suspension bracket 30 is housed in top connection 5.Suspension bracket 30 upper ends are provided with lifting eye 1.The lower end of lower core pipe 21 has been threaded connection starting taper 28.
On lower piston 23 and piston 29, lower isolating ring 24 and upper isolating ring 10, lower rubber cylinder 25 and upper packing element 11, lower gland 26 is the same with upper gland 8 structures and size, is convenient to standardization and processes, and cuts down finished cost, and guarantees setting effect.Gas control packing assembly and hydraulic control packing assembly assemble respectively, debugging respectively, and the labour intensity that has reduced assembling and debugged, the instrument quality easily guarantees.
Use procedure is as follows:
Lower high pressure adapter 15 is connected with upper high pressure adapter 16, and the lower end of upper core pipe 7 and transit joint 18 are threaded connection gas control packing assembly and hydraulic control packing assembly are fixedly mounted with, and is combined into the tubing and casing hermetic seal and detects the dual power source packer.
This tubing and casing hermetic seal detects dual power source packer after well, high-pressure air pipe 2 is connected with high-pressure liquid tube be connected with the high pressure liquid pump with high-pressure pump respectively, the high-pressure pump infusion be the helium nitrogen mixture gas, liquid pump can the infusion clear water, can be also machine oil.By lifting eye 1 use winch wire, the tubing and casing hermetic seal is detected the dual power source packer and sling, and put into two of well head up and down and gone up between the retaining ring pipe, upper packing element 11 is positioned at the top of casing coupling, and lower rubber cylinder 25 is positioned at the below of casing coupling.
At first suppress in high-pressure liquid tube 3, hydraulic pressure promotes lower piston 23 extruding lower rubber cylinder 25 expansions by high-pressure liquid tube 3 → high pressure coil pipe 17 → fluid hole 22, realizes setting.
Then suppress in high-pressure air pipe 2, be subject to the throttling action of gas throttling valve 14, Pneumatic pipe cleaner is crossed high-pressure air pipe 2 → venthole 12, promotes upper piston 29 extruding packing element 11 expansions, realizes setting.
With reference to Fig. 2, continue to improve air pressure, gas enters annular space between casing gas sealing detection dual power source packer and sleeve pipe 31 by gas throttling valve 14, because lower rubber cylinder 25 and upper packing element 11 all are in setting state, airtight upper packing element 11 is to the casing space between lower rubber cylinder 25, gas forms high pressure gradually in this annular space, pressure requires to set according to casing pressure test.Can in the outer installing gas analytical instrument of casing coupling 32, detect whether there is Leakage Gas this moment.
After completing detection, at first high-pressure liquid tube 3 pressure releases, lower rubber cylinder 25 shrinks deblocking and returns to original state under self elastic force and lower spring 27 effects, the discharging decompressing in the cased borehole of the gases at high pressure in annular space.Subsequently, in high-pressure air pipe 2 pressure releases, packing element 11 shrinks deblocking and returns to original state under self elastic force and upper spring 9 effects, can detect the dual power source packer with the hermetic seal of the utility model tubing and casing and propose sleeve pipe this moment, after being lowered to another root sleeve pipe, according to said procedure, the screw thread between two sleeve pipes is carried out hermetic seal and detect, until complete the detection of full casing.
In sum, content of the present utility model is not limited in the above-described embodiments, and those skilled in the art can propose other embodiment easily according to guiding theory of the present utility model, within these embodiments all are included in scope of the present utility model.
Claims (5)
1. a tubing and casing hermetic seal detects the dual power source packer, comprises gas control packing assembly and hydraulic control packing assembly, and described gas control packing assembly comprises: high-pressure air pipe (2), top connection (5), upper adjustment joint (6), upper core pipe (7); Described hydraulic control packing assembly comprises: in establish the lower core pipe (21) of inlet opening; it is characterized in that: the bottom of described upper core pipe (7) is provided with the through hole (13) that is communicated with high-pressure air pipe (2), gas throttling valve (14) is housed in described through hole (13), be provided with a bottom in described high-pressure air pipe (2) high-pressure liquid tube (3) of lower high pressure adapter (15) is housed, the top of described lower core pipe (21) is threaded connection the lower adjustment joint (20) that is communicated with described inlet opening, this time adjustment joint (20) top has been threaded connection transit joint (18), be provided with a top in this transit joint (18) the high pressure coil pipe (17) of high pressure adapter (16) is housed, this high pressure coil pipe (17) is packed in the top of described lower adjustment joint (20) by lower high pressure connection (19), and be communicated with the inlet opening in described lower core pipe (21), described lower high pressure adapter (15) is connected with upper high pressure adapter (16), the lower end of described upper core pipe (7) and transit joint (18) are threaded connection described gas control packing assembly and hydraulic control packing assembly are fixedly mounted with.
2. tubing and casing hermetic seal according to claim 1 detects the dual power source packer, and it is characterized in that: the upper end of described high-pressure air pipe (2) is packed in described top connection (5) by upper high pressure connection (4).
3. tubing and casing hermetic seal according to claim 1 detects the dual power source packer, and it is characterized in that: the lower end of described lower core pipe (21) has been threaded connection starting taper (28).
4. according to claim 1 to 3, the described tubing and casing hermetic seal of any one detects the dual power source packer, it is characterized in that: suspension bracket (30) is housed in described top connection (5).
5. tubing and casing hermetic seal according to claim 4 detects the dual power source packer, it is characterized in that: described suspension bracket (30) upper end is provided with lifting eye (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655169 CN202946094U (en) | 2012-12-03 | 2012-12-03 | Double-power-source packer for air-tight seal detection of oil sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220655169 CN202946094U (en) | 2012-12-03 | 2012-12-03 | Double-power-source packer for air-tight seal detection of oil sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946094U true CN202946094U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220655169 Expired - Fee Related CN202946094U (en) | 2012-12-03 | 2012-12-03 | Double-power-source packer for air-tight seal detection of oil sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946094U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764566B (en) * | 2015-04-22 | 2017-07-28 | 西南石油大学 | A kind of external tubing and casing pneumatic sealing test device and detection method |
| CN107702901A (en) * | 2017-09-12 | 2018-02-16 | 中国石油天然气股份有限公司 | A kind of horizontal well repeats K344 removing seal for packer ability test device and methods under transformation operating mode |
| CN112664157A (en) * | 2020-12-30 | 2021-04-16 | 核工业北京地质研究院 | Pressure regulation and control device and method for packer |
| CN112901138A (en) * | 2019-11-17 | 2021-06-04 | 中石化石油工程技术服务有限公司 | Sleeve air-tight seal detection device |
-
2012
- 2012-12-03 CN CN 201220655169 patent/CN202946094U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764566B (en) * | 2015-04-22 | 2017-07-28 | 西南石油大学 | A kind of external tubing and casing pneumatic sealing test device and detection method |
| CN107702901A (en) * | 2017-09-12 | 2018-02-16 | 中国石油天然气股份有限公司 | A kind of horizontal well repeats K344 removing seal for packer ability test device and methods under transformation operating mode |
| CN107702901B (en) * | 2017-09-12 | 2019-07-05 | 中国石油天然气股份有限公司 | A kind of horizontal well repeats K344 removing seal for packer ability test method under transformation operating condition |
| CN112901138A (en) * | 2019-11-17 | 2021-06-04 | 中石化石油工程技术服务有限公司 | Sleeve air-tight seal detection device |
| CN112664157A (en) * | 2020-12-30 | 2021-04-16 | 核工业北京地质研究院 | Pressure regulation and control device and method for packer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20161203 |