CN108150125A - A kind of high-pressure well wellhead assembly and its method for generating sound source - Google Patents
A kind of high-pressure well wellhead assembly and its method for generating sound source Download PDFInfo
- Publication number
- CN108150125A CN108150125A CN201711436374.8A CN201711436374A CN108150125A CN 108150125 A CN108150125 A CN 108150125A CN 201711436374 A CN201711436374 A CN 201711436374A CN 108150125 A CN108150125 A CN 108150125A
- Authority
- CN
- China
- Prior art keywords
- piston
- wellhead assembly
- shaft
- piston cylinder
- chamber
- 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
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000010985 leather Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction 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
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
-
- 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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- Earth Drilling (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of high-pressure well wellhead assembly and its methods for generating sound source, piston cylinder is fixedly installed on the outside of conventional wellhead assembly, it is slided in piston cylinder and is provided with piston, the gas chamber of conventional wellhead assembly is connected by the first stomata with first chamber, the casing of conventional wellhead assembly is connected by the second stomata with second chamber, the trepanning end of shaft and the threaded one end of piston rod connect, and the other end of shaft extend out to the outside of piston cylinder, and sealing element is provided between shaft and piston cylinder.It realizes the pneumatic sounding without external gas exchanges, with overcome the deficiencies in the prior art, meets the level test needs of high-pressure oil-gas well.Belong to oilfield well testing technical field of measurement and test.
Description
Technical field
The invention belongs to oilfield well testing technical field of measurement and test, and in particular to a kind of high-pressure well wellhead assembly and its generation sound
The method in source.
Background technology
During oilfield test oil (gas) well annulus liquid level depth, generally tested using echo method.I.e. in well head generation sound
Pulse determines level the time required to being returned further according to ping from liquid level.Therefore sound system is the core of wellhead assembly
Composition.
Existing wellhead assembly generally (is illustrated) using pneumatic sounding scheme see Fig. 2.By the extraneous gas for being higher than casing pressure
Body is filled with gas chamber (b) by the first stomata (c), and after control valve rod (11) is moved to the left, gas rapidly enters set in gas chamber (b)
It manages (a), and generates sound wave needed for test.High-pressure air source is not either connect, makes gas chamber (b) and atmosphere.It is directly moved during test
Ovable valve stem (11), makes gas rapidly enter gas chamber (b) by casing (a), and generates sound wave needed for test.After valve rod (11) resets,
The gas of gas chamber (b) is slowly discharged into air again.It is that casing gas is discharged into air pollutes the environment in place of the deficiencies in the prior art,
There is also security risks.Casing gas contains H2Forbid outer row during S.Such as using inflation trigger method, there is peace with air pump compresses air
Full hidden danger, pressure value are limited；High pressure nitrogen percussion is filled, gas cylinder capacity is limited, it is impossible to realize continuous monitoring；Work as casing
When pressure is higher than 15MPa, it is difficult to find the Nitrogen source gases of higher pressure.
Invention content
It is an object of the invention to：A kind of high-pressure well wellhead assembly and its method for generating sound source are provided, realized without right
The pneumatic sounding of outer gas exchanges with overcome the deficiencies in the prior art, meets the level test needs of high-pressure oil-gas well.
To achieve the above object, intend using such a high-pressure well wellhead assembly, including conventional wellhead assembly, conventional well
Piston cylinder is fixedly installed on the outside of mouth device, is slided in piston cylinder and is provided with piston, and piston cylinder internal chamber passes through piston
It is divided into first chamber and second chamber two parts, the gas chamber of conventional wellhead assembly on conventional wellhead assembly outer wall by offering
The first stomata be connected with first chamber, the casing of conventional wellhead assembly by offered on conventional wellhead assembly outer wall
Two stomatas are connected with second chamber, and one end of piston is fixed with externally threaded piston rod, and piston rod, which is coaxially arranged with, to be turned
Axis, one end of shaft is has female open-celled structure, and the threaded one end of the trepanning end of the shaft and piston rod connects,
The other end of shaft extend out to the outside of piston cylinder, and sealing element is provided between shaft and piston cylinder, the piston and piston
Anti-rotation structure is provided between cylinder, anti-rotation structure selects the anti-rotation structure between existing conventional piston and piston cylinder.
Anti-rotation structure described in aforementioned wellhead assembly is prejudicially perpendicularly fixed on piston for piston rod, i.e., piston rod is in work
Fixed position beyond the Great Wall is not the end face center of piston, this allows for shaft in the rotation, and piston rod is due to piston and work
The effect of contraction of plug cylinder will not rotate, constant in shaft lateral position so as to fulfill the relative rotation of piston rod and shaft
In the case of, piston rod band piston is slided in piston cylinder；
In aforementioned wellhead assembly, leather cup is provided on the piston；
In aforementioned wellhead assembly, the piston cylinder is also tubular construction, and piston rod and shaft are set along the axis of piston cylinder
It puts, and piston cylinder is parallel with conventional wellhead assembly.
Its application method is as follows：In use, rotating shaft, due to being provided with anti-rotation structure between piston and piston cylinder, because
This, piston rod will not rotate, and realize and relatively rotate between piston rod and shaft, living in the case of constant in shaft lateral position
Plug slides in piston cylinder along the length direction of piston cylinder, is acted on by connection, you can while realize the suction of conventional wellhead assembly
Gas and supercharging, so as to fulfill pneumatic sounding.
Compared with prior art, the present invention realizes the pneumatic sounding without external gas exchanges, solves high-pressure oil-gas well
The problem of air source is difficult to provide, while eliminate security risk.Because piston both sides connect respectively with gas chamber and casing, piston is held
Pressure difference is small, and driving is easy.If moved with motor control piston, solenoid valve control percussion can realize continuous monitoring；
Initial pressure is high in casing, and piston can be completed to pressurize in a stroke, and correlated parts are without apparent frictional heating, long lifespan,
Safety coefficient is high.
Description of the drawings
Accompanying drawing 1 is the structural representation of the present invention；
Structure diagram of the attached drawing 2 for existing conventional wellhead assembly.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
Embodiment：
With reference to Fig. 1, the present embodiment provides a kind of high-pressure well wellhead assemblies, including conventional wellhead assembly 1, conventional well head dress
The outside for putting 1 is fixedly installed piston cylinder 2, and piston cylinder 2 is tubular construction, is slided in piston cylinder 2 and is provided with piston 21, piston 21
On be provided with leather cup 25, and 2 internal chamber of piston cylinder is divided into first chamber d and second chamber e two parts by piston 21, often
The gas chamber b of rule wellhead assembly 1 is connected by the first stomata c offered on conventional 1 outer wall of wellhead assembly with first chamber d,
The casing a of conventional wellhead assembly 1 is connected by the second stomata f offered on conventional 1 outer wall of wellhead assembly with second chamber e
Logical, one end of piston 21 is fixed with externally threaded piston rod 22, and piston rod 22 and shaft 23 are along the axis of piston cylinder 2
Setting, and piston cylinder 2 is parallel with conventional wellhead assembly 1, piston rod 22 is coaxially arranged with shaft 23, and one end of shaft 23 is
Have female open-celled structure, and the trepanning end of the shaft 23 is connect with the threaded one end of piston rod 22, shaft 23 it is another
One end extend out to the outside of piston cylinder 2, and sealing element 24 is provided between shaft 23 and piston cylinder 2, the piston 21 and piston
Anti-rotation structure is provided between cylinder 2, which is prejudicially perpendicularly fixed at for piston rod 22 on piston 21, i.e., piston rod 22 exists
Fixed position on piston 21 is not the end face center of piston 21, this allows for shaft 23 in the rotation, piston rod 22 by
It will not rotate in the effect of contraction of piston 21 and piston cylinder 2, so as to fulfill the relative rotation of piston rod 22 and shaft 23,
In the case that 23 lateral position of shaft is constant, piston rod 22 is slided with piston 21 in piston cylinder 2.
In use, rotating shaft 23, due to being provided with anti-rotation structure between piston 21 and piston cylinder 2, piston rod 22
It will not rotate, realize and relatively rotate between piston rod 22 and shaft 23, in the case of constant in 23 lateral position of shaft, piston 21
It slides along the length direction of piston cylinder 2 in piston cylinder 2, is acted on by connection, you can while realize the suction of conventional wellhead assembly 1
Gas and supercharging, so as to fulfill pneumatic sounding.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of high-pressure well wellhead assembly, it is characterised in that：Including conventional wellhead assembly, the outside of conventional wellhead assembly is fixed
Be provided with piston cylinder, slided in piston cylinder and be provided with piston, and piston cylinder internal chamber by piston be divided into first chamber and
Second chamber two parts, the gas chamber of conventional wellhead assembly pass through the first stomata and first for being offered on conventional wellhead assembly outer wall
Chamber is connected, and the casing of conventional wellhead assembly passes through the second stomata and second chamber that are offered on conventional wellhead assembly outer wall
It is connected, one end of piston is fixed with externally threaded piston rod, and piston rod is coaxially arranged with shaft, and one end of shaft is tool
Female open-celled structure, and the threaded one end of the trepanning end of the shaft and piston rod connects, the other end of shaft stretches out
To the outside of piston cylinder, and sealing element is provided between shaft and piston cylinder, anti-rotation knot is provided between the piston and piston cylinder
Structure.
2. a kind of high-pressure well wellhead assembly according to claim 1, it is characterised in that：The anti-rotation structure is inclined for piston rod
Heart is perpendicularly fixed on piston.
3. a kind of high-pressure well wellhead assembly according to claim 1, it is characterised in that：Leather cup is provided on the piston.
4. a kind of high-pressure well wellhead assembly according to claim 1, it is characterised in that：The piston cylinder is also tubular knot
Structure, piston rod and shaft are set along the axis of piston cylinder, and piston cylinder is parallel with conventional wellhead assembly.
5. the method that sound source is generated using any claim described device in claim 1-4 is as follows：
In use, rotating shaft, due to being provided with anti-rotation structure between piston and piston cylinder, piston rod will not rotate, living
It realizes and relatively rotates between stopper rod and shaft, in the case of constant in shaft lateral position, piston is in piston cylinder along piston cylinder
Length direction slide, acted on by connection, you can while air-breathing and the supercharging of conventional wellhead assembly are realized, so as to fulfill pneumatic
Sounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436374.8A CN108150125A (en) | 2017-12-26 | 2017-12-26 | A kind of high-pressure well wellhead assembly and its method for generating sound source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436374.8A CN108150125A (en) | 2017-12-26 | 2017-12-26 | A kind of high-pressure well wellhead assembly and its method for generating sound source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150125A true CN108150125A (en) | 2018-06-12 |
Family
ID=62463175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711436374.8A Pending CN108150125A (en) | 2017-12-26 | 2017-12-26 | A kind of high-pressure well wellhead assembly and its method for generating sound source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617056A (en) * | 2019-11-07 | 2019-12-27 | 贵州航天凯山石油仪器有限公司 | Triggering method and device for liquid level test of high-pressure oil-gas well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509552A (en) * | 1983-04-18 | 1985-04-09 | Delta-X Corporation | Gas gun for determining the liquid level of a well |
| US4637463A (en) * | 1984-08-02 | 1987-01-20 | Mccoy James N | Echo ranging gun |
| CN101571042A (en) * | 2009-06-04 | 2009-11-04 | 付吉平 | Continuous remote telemetering method for liquid levels of oil wells |
| CN102022108A (en) * | 2010-07-27 | 2011-04-20 | 岳强 | Automatic infrasonic wave non-pressure oil well liquid level monitoring instrument |
| CN104879123A (en) * | 2015-06-02 | 2015-09-02 | 中国海洋石油总公司 | Self-pressurization oil-gas well liquid level testing device |
| CN205823269U (en) * | 2016-07-06 | 2016-12-21 | 沈阳新石科技有限公司 | A kind of Multifunctional oil-well liquid level automatic monitoring device |
-
2017
- 2017-12-26 CN CN201711436374.8A patent/CN108150125A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4509552A (en) * | 1983-04-18 | 1985-04-09 | Delta-X Corporation | Gas gun for determining the liquid level of a well |
| US4637463A (en) * | 1984-08-02 | 1987-01-20 | Mccoy James N | Echo ranging gun |
| CN101571042A (en) * | 2009-06-04 | 2009-11-04 | 付吉平 | Continuous remote telemetering method for liquid levels of oil wells |
| CN102022108A (en) * | 2010-07-27 | 2011-04-20 | 岳强 | Automatic infrasonic wave non-pressure oil well liquid level monitoring instrument |
| CN104879123A (en) * | 2015-06-02 | 2015-09-02 | 中国海洋石油总公司 | Self-pressurization oil-gas well liquid level testing device |
| CN205823269U (en) * | 2016-07-06 | 2016-12-21 | 沈阳新石科技有限公司 | A kind of Multifunctional oil-well liquid level automatic monitoring device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617056A (en) * | 2019-11-07 | 2019-12-27 | 贵州航天凯山石油仪器有限公司 | Triggering method and device for liquid level test of high-pressure oil-gas well |
| CN110617056B (en) * | 2019-11-07 | 2024-03-26 | 贵州航天凯山石油仪器有限公司 | Firing method and device for testing liquid level of high-pressure oil-gas well |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180612 |