CN110424953A - Pressure testing pipe nipple - Google Patents
Pressure testing pipe nipple Download PDFInfo
- Publication number
- CN110424953A CN110424953A CN201910856120.4A CN201910856120A CN110424953A CN 110424953 A CN110424953 A CN 110424953A CN 201910856120 A CN201910856120 A CN 201910856120A CN 110424953 A CN110424953 A CN 110424953A
- Authority
- CN
- China
- Prior art keywords
- pressure testing
- pipe nipple
- testing pipe
- inlet
- preventer
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 182
- 210000002445 nipple Anatomy 0.000 title claims abstract description 105
- 239000007788 liquid Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010985 leather Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides pressure testing pipe nipple, and pressure testing pipe nipple is divided into 3 sections, includes successively from top to bottom upper pressure testing pipe nipple, middle pressure testing pipe nipple, lower pressure testing pipe nipple, and 3 sections are not connected, are respectively equipped with inlet I, inlet II on the tube wall of upper, middle pressure testing pipe nipple；The tube wall of the middle pressure testing pipe nipple of II lower part of inlet is equipped with liquid outlet；Preventer is mounted on well head oil tube head four-way, and pressure testing pipe nipple is integrally inserted into the central through hole in preventer, and the bottom of pressure testing pipe nipple is locked in the port of well head oil tube head four-way by hanger, and lower pressure testing pipe nipple is connected through a screw thread with hanger；Preventer is located in the liquid inlet between II and liquid outlet, and the top of upper pressure testing pipe nipple is connect with plug valve；When pressure testing, first to hanger pressure testing, finally to blowout preventer pressure-testing；The utility model has the advantages that test medium be water, save the cost, it is free from environmental pollution, can be more reliable to preventer, plug valve difference pressure testing, pressure testing result, safety is higher.
Description
Technical field
The present invention relates to testing pressure of well head pipe nipple technical fields, more particularly, to pressure testing pipe nipple.
Technical background
In petroleum production engineering workover treatment, installation preventer is needed before construction and pressure testing is qualified.For oil gas water well well memory
It is in traditional pressure-measuring method of tubing string: installs preventer in well head four-way, tripping in pressure testing pipe nipple is connected with hanger, closes
Ram block makes preventer be in sealing state, starts hydraulic test pump, and pressure testing oil enters the biography on pressure testing pipe nipple by hose
Carrying out pressure testing to preventer behind pressure hole is the pressure testing completed to preventer.
Plug valve can in case of emergency close well head, and traditional pressure testing pipe nipple is a section, therefore cannot be individually to blowout prevention
Device and the independent pressure testing of plug valve, and water flow from pressure testing pipe nipple bottom, by preventer section, to the plug valve at top, drawn again by its distance
It is longer, energy is weakened, thus the pressure that goes out of plug valve pressure testing be compared to independent pressure testing pressure it is opposite become smaller, therefore
Result after pressure testing is not accurate enough, and safety is not high enough.
Traditional test medium is directly the oil in shaft bottom, and the oil of pressure testing cannot be collected completely, therefore not only cause to waste
The problem of, it also will cause pollution well head, pollute the problem of environment.
Therefore need to develop new pressure testing pipe nipple.
Summary of the invention
To solve the above-mentioned problems, the present invention provide a kind of structure is simple, processing cost is low, its size is prefabricated in the factory,
Test medium is water, saves more money and do not pollute around well head, can carry out pressure testing to plug valve and preventer respectively, and safety is higher
Pressure testing pipe nipple.
Technical scheme is as follows:
Pressure testing pipe nipple, including pressure testing pipe nipple, the pressure testing pipe nipple are divided into 3 sections, from top to bottom successively include upper pressure testing pipe nipple, in
Pressure testing pipe nipple, lower pressure testing pipe nipple, 3 sections are not connected, the upper pressure testing pipe nipple, middle pressure testing pipe nipple tube wall on be equipped with feed liquor
Mouth, respectively inlet I, inlet II；Liquid outlet is additionally provided on the tube wall of the middle pressure testing pipe nipple of II lower part of inlet；
Preventer is mounted on well head oil tube head four-way by leather cup, and it is logical that pressure testing pipe nipple is integrally inserted into the center in preventer
Hole, the bottom of pressure testing pipe nipple are locked in the port of well head oil tube head four-way by hanger, wherein pressure testing pipe nipple and the suspension
The connection type of device are as follows: the bottom peripheral hardware screw thread of the lower pressure testing pipe nipple sets screw thread, the lower pressure testing pipe nipple in the hanger
It is connected through a screw thread with hanger；
The preventer is located in the liquid inlet between II and liquid outlet, and the top of the upper pressure testing pipe nipple is connect with plug valve；
The inlet I, inlet II, liquid outlet are in a vertical line on pressure testing pipe nipple；
The length of this pressure testing pipe nipple entirety is prefabricated in the factory according to the distance of the hanger, preventer, plug valve；It is described
Preventer include flashboard full-enclosed type preventer and half-closed type preventer, the length of the middle pressure testing pipe nipple is according to the height of preventer
Degree and type are configured, and are allowed to match with the preventer, and the length for further adjusting pressure testing pipe nipple is allowed to and preventer
Conjunction is fitted directly into, preventer is located in the liquid inlet between II and liquid outlet；
The inlet I, inlet II connect hydraulic test pump by pressure testing pipeline respectively；
The sequence that pressure testing pipeline is connect with inlet are as follows: first connect the inlet I and reconnect inlet II；
Test medium is water；
Pressure testing is carried out to the upper pressure testing pipe nipple first, pressure testing pipeline is connect with the inlet I, starts pressure testing at this time
Pump, test medium water is entered in upper pressure testing pipe nipple by the inlet I, the pressure of pressure testing is gradually increased to from 21Mpa
35Mpa pressure testing 10 minutes, observes the state of the pressure valve on the hanger, under normal circumstances, when pressure is less than 35Mpa, hangs
The pressure of pressure valve in hanging device is normal value between 0.3Mpa-0.5Mpa, and water is flowed out from the hanger, when on hanger
Pressure valve pressure be greater than 0.5Mpa after, the hanger, which is automatically closed, realizes closing well；Or when the pressure on hanger
The pressure of power valve manual energy when being greater than 0.5Mpa, which closes the hanger, realizes closing well, is further able to avoid blowout event
Occur；The pressure testing of the hanger is just completed at this time.
Pressure testing finally is carried out to the middle pressure testing pipe nipple, the connection closed pump, disconnect pressure testing pipeline and the inlet I will
Pressure testing pipeline is connect with the inlet II, starts hydraulic test pump at this time, and test medium water is entered by the inlet II
In middle pressure testing pipe nipple, the pressure of pressure testing is gradually increased to 35Mpa from 21Mpa, pressure testing 10 minutes, observes the pressure on the preventer
The state of power valve, under normal circumstances, when pressure is less than 35Mpa, the pressure of the pressure valve on the preventer is in 0.3Mpa-
Between 0.5Mpa, the preventer, which does not leak, completes work pressure test, and the preventer is qualified；When pressure is urgent greater than 0.5Mpa
In the case of, closing the hanger realizes closing well, is further able to that blowout event is avoided to occur.
It has the beneficial effect that
1. testing pressure of well head pipe nipple can carry out independent pressure testing to plug valve, preventer respectively, therefore water flow is not present from examination
The problem of pressure pipe nipple bottom is weakened by longer, the energy that plug valve its distance that preventer section arrives top again is drawn, because
This ensured plug valve, preventer in an emergency situation can closing well, further enhance the reliability of closing well, improve safety
Property.
2. wellhead blowout preventor pressure testing pipe nipple structure of the present invention is simple, manufacture craft and operating process are simple, therefore reduce
Pressure testing cost improves pressure testing efficiency.
3. traditional pressure testing is to carry out pressure testing with shaft bottom oil, therefore oil can splash down well head surrounding after will cause waste, pressure testing
The problem of polluting well head, we have selected water as test medium, save cost and will not bring problem of environmental pollution.
4. since the length of this pressure testing pipe nipple entirety is prefabricated in the factory according to the distance of hanger, preventer, plug valve, in
The length of pressure testing pipe nipple is configured according to the height and type of preventer, and the length for further adjusting pressure testing pipe nipple is allowed to and prevents
Spray apparatus fits directly into conjunction, is allowed to match with the preventer, so wellhead blowout preventor pressure testing pipe nipple of the present invention is able to satisfy difference
The demand of size testing pressure of well head, in addition to this since the length of pressure testing pipe nipple and preventer fit directly into conjunction so material can be saved
Material, avoids energy loss.
5. since inlet I, inlet II, inlet III, liquid outlet are in a vertical line on pressure testing pipe nipple, so connecing examination
When pressure pipeline more it is easy need not pitch of the laps connect pressure testing pipeline.
Detailed description of the invention
Fig. 1: pressure testing pipe nipple schematic diagram of the present invention；
In figure:
1, upper pressure testing pipe nipple 2, middle pressure testing pipe nipple 3, lower pressure testing pipe nipple
4, inlet I 5, inlet II
7, liquid outlet 8, preventer 9, hanger
10, plug valve
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
The present embodiment pressure testing pipe nipple, including pressure testing pipe nipple, the pressure testing pipe nipple are divided into 3 sections, from top to bottom successively include upper examination
Press pipe nipple 1, middle pressure testing pipe nipple 2,3,3 section of lower pressure testing pipe nipple not connected, the tube wall of the upper pressure testing pipe nipple 1, middle pressure testing pipe nipple 2
On be equipped with inlet, respectively inlet I 4, inlet II 5；The tube wall of the middle pressure testing pipe nipple 2 of II 5 lower part of inlet
On be additionally provided with liquid outlet 7；
Preventer 8 is mounted on well head oil tube head four-way by leather cup, and pressure testing pipe nipple is integrally inserted into the center in preventer 8
Through-hole, the bottom of pressure testing pipe nipple are locked in the port of well head oil tube head four-way by hanger 9, wherein pressure testing pipe nipple with it is described
The connection type of hanger 9 are as follows: the bottom peripheral hardware screw thread of the lower pressure testing pipe nipple 3 sets screw thread in the hanger 9, under described
Pressure testing pipe nipple 3 is connected through a screw thread with hanger 9；
The preventer 8 is located in the liquid inlet between II 5 and liquid outlet 7, the top of the upper pressure testing pipe nipple 1 and plug valve 10
Connection；
The inlet I 4, inlet II 5, liquid outlet 7 are in a vertical line on pressure testing pipe nipple；Due to inlet I 4, into
Liquid mouth II 5, liquid outlet 7 on pressure testing pipe nipple be in a vertical line, so when connecing pressure testing pipeline more it is easy need not pitch of the laps connect pressure testing
Pipeline.
The length of this pressure testing pipe nipple entirety is prefabricated in the factory according to the distance of the hanger 9, preventer 8, plug valve 10；
The preventer 8 include flashboard full-enclosed type preventer and half-closed type preventer, the length of the middle pressure testing pipe nipple 2
It is configured according to the height of preventer 8 and type, is allowed to match with the preventer 8, preventer 8 is located in the liquid inlet II 5
Between liquid outlet 7；
Since the length of this pressure testing pipe nipple entirety is prefabricated in the factory according to the distance of hanger 9, preventer 8, plug valve 10,
The length of middle pressure testing pipe nipple 2 is configured according to the height and type of preventer 8, so 8 pressure testing of wellhead blowout preventor of the present invention is short
Energy conservation meets the needs of different size testing pressure of well head.
The inlet I 4, inlet II 5, inlet III 6 connect hydraulic test pump by pressure testing pipeline respectively；
The sequence that pressure testing pipeline is connect with inlet are as follows: first connect the inlet I 4 finally connection inlet II 5；Its is suitable
Sequence is exchanged can also be with.
Test medium is water；
The course of work: 1, traditional pressure testing is to carry out pressure testing with shaft bottom oil, therefore oil can splash down after will cause waste, pressure testing
Well head surrounding pollutes the problem of well head, we have selected water as test medium, save cost and will not bring environmental pollution
Problem.Pressure testing is carried out to the upper pressure testing pipe nipple 1 first, pressure testing pipeline is connect with the inlet I 4, starts pressure testing at this time
Pump, test medium water is entered in upper pressure testing pipe nipple 1 by the inlet I 4, the pressure of pressure testing is gradually increased from 21Mpa
To 35Mpa, pressure testing 10 minutes, the state of the pressure valve on the hanger 9 is observed, under normal circumstances, pressure is less than 35Mpa
When, the pressure of the pressure valve on the hanger 9 is normal value between 0.3Mpa-0.5Mpa, and water is flowed from the hanger 9
Out, after pressure is more than or equal to 35Mpa, the hanger 9, which is automatically closed, realizes closing well；Or when pressure is more than or equal to
Manual energy, which closes the hanger 9, when 35Mpa realizes closing well, is further able to that blowout event is avoided to occur；It just completes at this time
The pressure testing of the hanger 9.
2, pressure testing is carried out to the middle pressure testing pipe nipple 2, the connection closed pump, disconnect pressure testing pipeline and the inlet I 4 will
Pressure testing pipeline is connect with the inlet II 5, starts hydraulic test pump at this time, and test medium water is entered by the inlet II 5
Into middle pressure testing pipe nipple 2, the pressure of pressure testing is gradually increased to 35Mpa from 21Mpa, pressure testing 10 minutes, observes on the preventer 8
Pressure valve state, under normal circumstances, when pressure is less than 35Mpa, the pressure of the pressure valve on the preventer 8 exists
Between 0.3Mpa-0.5Mpa, the preventer 8, which does not leak, completes work pressure test, and the preventer 8 is qualified；Water from it is described into
Liquid mouth II 5 is flowed out into from liquid outlet 7, and when pressure is greater than 0.5Mpa in emergency circumstances, the hanger 9 for closing its bottom is i.e. real
Closing well is showed, has been further able to that blowout event is avoided to occur.
8 pressure testing pipe nipple of wellhead blowout preventor of the present invention can carry out pressure testing to plug valve 10, preventer 8 respectively, therefore ensure
Plug valve 10, hanger 9, preventer 8 in an emergency situation can closing well, further enhance the reliability of closing well, improve
Safety.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" be based on attached orientation or positional relationship shown in FIG. 1, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (6)
1. pressure testing pipe nipple, including pressure testing pipe nipple, it is characterised in that: the pressure testing pipe nipple is divided into 3 sections, from top to bottom successively includes upper examination
Pipe nipple (1), middle pressure testing pipe nipple (2), lower pressure testing pipe nipple (3) are pressed, 3 sections are not connected, and the upper pressure testing pipe nipple (1), middle pressure testing are short
It saves and is equipped with inlet, respectively inlet I (4), inlet II (5) on the tube wall of (2)；Inlet II (5) lower part
Liquid outlet (7) are additionally provided on the tube wall of middle pressure testing pipe nipple (2)；
Preventer (8) is mounted on well head oil tube head four-way by leather cup, and pressure testing pipe nipple is integrally inserted into the center in preventer (8)
Through-hole, the bottom of pressure testing pipe nipple are locked in the port of well head oil tube head four-way by hanger (9)；The preventer (8) is located at
Between inlet II (5) and liquid outlet (7), the top of the upper pressure testing pipe nipple (1) is connect with plug valve (10).
2. pressure testing pipe nipple according to claim 1, it is characterised in that: the connection side of pressure testing pipe nipple and the hanger (9)
Formula are as follows: the bottom peripheral hardware screw thread of the lower pressure testing pipe nipple (3), the hanger (9) is interior to set screw thread, the lower pressure testing pipe nipple (3)
It is connected through a screw thread with hanger (9).
3. pressure testing pipe nipple according to claim 1, it is characterised in that: the inlet I (4), goes out liquid at inlet II (5)
Mouth (7) is in a vertical line on pressure testing pipe nipple.
4. pressure testing pipe nipple according to claim 1, it is characterised in that: the length of this pressure testing pipe nipple entirety is according to the suspension
Device (9), preventer (8), plug valve (10) distance be prefabricated in the factory；The length of the middle pressure testing pipe nipple (2) is according to preventer
(8) height and type, which is configured, to be allowed to match with the preventer (8).
5. pressure testing pipe nipple according to claim 1, it is characterised in that: the inlet I (4), inlet II (5) lead to respectively
Cross pressure testing pipeline connection hydraulic test pump, the sequence that pressure testing pipeline is connect with inlet are as follows: first connect the inlet I (4) and reconnect
Inlet II (5).
6. pressure testing pipe nipple described according to claim 1 or 2 or 2 or 4 or 5, it is characterised in that: test medium is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856120.4A CN110424953A (en) | 2019-09-11 | 2019-09-11 | Pressure testing pipe nipple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910856120.4A CN110424953A (en) | 2019-09-11 | 2019-09-11 | Pressure testing pipe nipple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110424953A true CN110424953A (en) | 2019-11-08 |
Family
ID=68418952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910856120.4A Pending CN110424953A (en) | 2019-09-11 | 2019-09-11 | Pressure testing pipe nipple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424953A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4347733A (en) * | 1980-10-03 | 1982-09-07 | Crain Jack A | Blowout preventor test system |
| RU2298637C2 (en) * | 2005-08-04 | 2007-05-10 | Открытое акционерное общество "Северо-Кавказский научно-исследовательский проектный институт природных газов" Открытого акционерного общества "Газпром" (ОАО "СевКавНИПИгаз" ОАО "Газпром") | Plant for threaded casing pipe connection air-tightness determination during casing pipe lowering in well |
| CN203310704U (en) * | 2013-07-12 | 2013-11-27 | 田金合 | Manual pressure test device with multifunctional blowout preventer |
| CN104359624A (en) * | 2014-10-15 | 2015-02-18 | 重庆中重石油机械有限公司 | Plug valve pressure tester |
| CN206174883U (en) * | 2016-11-03 | 2017-05-17 | 中国石油集团西部钻探工程有限公司 | Multi -functional pressure testing nipple joint |
| CN210422597U (en) * | 2019-09-11 | 2020-04-28 | 天津市正方科技发展有限公司 | Pressure test nipple |
-
2019
- 2019-09-11 CN CN201910856120.4A patent/CN110424953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4347733A (en) * | 1980-10-03 | 1982-09-07 | Crain Jack A | Blowout preventor test system |
| RU2298637C2 (en) * | 2005-08-04 | 2007-05-10 | Открытое акционерное общество "Северо-Кавказский научно-исследовательский проектный институт природных газов" Открытого акционерного общества "Газпром" (ОАО "СевКавНИПИгаз" ОАО "Газпром") | Plant for threaded casing pipe connection air-tightness determination during casing pipe lowering in well |
| CN203310704U (en) * | 2013-07-12 | 2013-11-27 | 田金合 | Manual pressure test device with multifunctional blowout preventer |
| CN104359624A (en) * | 2014-10-15 | 2015-02-18 | 重庆中重石油机械有限公司 | Plug valve pressure tester |
| CN206174883U (en) * | 2016-11-03 | 2017-05-17 | 中国石油集团西部钻探工程有限公司 | Multi -functional pressure testing nipple joint |
| CN210422597U (en) * | 2019-09-11 | 2020-04-28 | 天津市正方科技发展有限公司 | Pressure test nipple |
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