CN208043192U - A kind of gas firing lock with pressure equalizing chamber - Google Patents
A kind of gas firing lock with pressure equalizing chamber Download PDFInfo
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- CN208043192U CN208043192U CN201820335437.4U CN201820335437U CN208043192U CN 208043192 U CN208043192 U CN 208043192U CN 201820335437 U CN201820335437 U CN 201820335437U CN 208043192 U CN208043192 U CN 208043192U
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Abstract
The utility model is related to a kind of gas firing lock with pressure equalizing chamber, structure is to be designed with cavity in gun body and piston seat, piston rod is made of three sections of cylinders of upper, middle and lower of different-diameter, one O-ring dress is on the piston rod, piston rod is in piston seat and both ends pass through piston seat, piston rod epimere to be connected with driving mechanism after being pierced by compact heap；Piston rod seals to form upper chamber by another two O-ring and piston seat, and piston seat makes annular groove in gun body be communicated with radial hole on piston seat, gas chamber in being formed between piston rod middle and lower sections and gun body loaded in gun body cavity by two O-rings of residue.Piston rod hypomere with well head after O-ring and gun body sealing by forming lower chamber.The utility model effectively reduces upward pressure suffered in the piston rod course of work due to the presence of upper chamber, improves the safety when test of mesohigh oil well liquid level and monitoring, effectively solves the problems, such as oil field mesohigh well sound hair device bad adaptability, difficult operation.
Description
Technical field
The utility model is related to air source sound acoustical generators used when the test of oilfield drilling fluid level and monitoring, specifically
It is related to a kind of gas firing lock with pressure equalizing chamber.
Background technology
Important process when oilfield drilling fluid level is tested and monitoring is oil drilling.Level
Test and monitoring instrument are commonly referred to as continuous liquid level tester, automatic liquid level monitor, mud liquid level monitor etc., lead
Will be by sound acoustical generator -- pulse signal acoustical generator (also referred to as wellhead assembly) and tester (also referred to as secondary instrument) form.Sound sounding
Device is connected to well head, generates sound wave pulse signal in well head when work, sound wave pulse signal is along drill pipe bore or casing and drilling rod
The annular space of formation transmits downwards, meets drill pipe coupling and liquid level reflection, and sound acoustical generator acoustic signals receive assembly and receive instead
The sound wave pulse signal penetrated simultaneously is transmitted to secondary instrument, and secondary instrument is amplified signal, filters calculation processing, according to well head and liquid level
The sound wave back wave time difference obtains level, and level monitoring curve is drawn out by level.
To ensure that instrument depth measurement ability, the sound wave pulse that air source sound acoustical generator generates need to reach some strength, pulse hair
Sound mouth diameter can not possibly design too small, the main problem of this sampling instrument in use：When in testing high-pressure well when, when
After piston rod lifts opening sound wave pulse generation mouth, since piston rod is big by well head gas pressure, it is difficult to be re-closing off sound wave arteries and veins
Mouth occurs for punching；Second of test can not be carried out, second is that piston rod lifts when opening sound wave pulse generation mouth, due to well head gas pressure
Power reason, impact force is big upwards suffered by piston rod, causes acoustical generator safety poor.During thus scene is adapted to there is an urgent need to one kind
High-pressure well level is tested, i.e., no matter piston rod, which is closed, pulse generation mouth or is opened pulse generation mouth, suffered by push up
Power is all smaller, and air source sound acoustical generator operational, that safety is all good.
Invention content
The utility model aim is exactly to provide a kind of gas firing lock with pressure equalizing chamber to meet oil field needs,
Cavity is designed in gun body and piston seat, for piston seat in gun body cavity, piston rod passes through piston seat in piston seat
Inside and outside each 2 sealing rings and piston-rod lower end sealing ring and gun body and piston rod packing, are integrally formed the gas chamber of upper, middle and lower 3,
And piston rod can move back and forth between upper and lower two work station points.It is connected to the hole of upper and lower gas chamber, annular groove ensures pressure equalizing chamber
It is exactly that upper chamber air pressure is consistent with oil well casing pressure always, piston rod is made of three sections of cylinders of different-diameter, and stage casing diameter is most
Greatly, upper diameter is minimum so that generates necessary pressure balance power on piston rod stage casing on annular surface.
The technical solution of the utility model：
A kind of gas firing lock with pressure equalizing chamber, including O-ring, gun body, piston seat, piston rod, feature exist
In：Cavity is designed in gun body and piston seat, piston rod is made of three sections of cylinders of upper, middle and lower of different-diameter, first O
Shape circle fills on the piston rod, and second is loaded in piston seat respectively with third O-ring, the 4th and the 5th O-ring difference
Outside loaded on piston seat, piston rod is in the piston seat and both ends pass through piston seat, and piston rod epimere is pierced by after compact heap and driving
Mechanism is connected；Piston rod seals to form upper chamber by second and third O-ring with piston seat, and piston seat is loaded on gun body type
Intracavitary makes annular groove in gun body be communicated with radial hole on piston seat by the 4th and the 5th O-ring, piston rod middle and lower sections with
Gas chamber in being formed between gun body, piston rod hypomere with well head after O-ring and gun body sealing by forming lower chamber.
The gun body is equipped with a hole, and hole lower end leads to lower chamber, that is, well head, and hole upper end is communicated with gun body interior annular groove, works as work
After obturating plug is packed into gun body, gun body interior annular groove is communicated with radial hole on piston seat.
The piston rod is made of three sections of cylinders of different-diameter, and wherein stage casing diameter is maximum, and upper diameter is minimum.
The piston rod of the utility model passes through each 2 sealing rings and piston-rod lower end inside and outside piston seat in piston seat
Sealing ring and gun body and piston rod packing, are integrally formed the gas chamber of upper, middle and lower 3, and piston rod can be between upper and lower two work station points
It moves back and forth.
Sound acoustical generator with this gas firing lock, when piston rod movement to lower station, piston rod is by acoustical generator sound
Wave impulse occurs mouth and closes, and while well head air pressure acts on piston-rod lower end face, acts also on annular surface on piston rod stage casing
On, to upward pressure suffered by balance portion piston rod.When the supreme station of piston rod movement, piston rod is by acoustical generator sound wave arteries and veins
Punching occurs mouth and opens, and upper, middle and lower gas chamber full-mesh, well head air pressure acts on annular end face under piston-rod lower end face and stage casing
Annular end face on piston rod stage casing is acted on again simultaneously, it equally can upward pressure suffered by balance portion piston rod.
Description of the drawings
Fig. 1 is gas type sound acoustical generator structural schematic diagram.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 a are that mouth closing structure principle schematic is occurred for sound wave pulse by the utility model gas firing lock piston rod.
Fig. 3 b are that mouth Unclosing structure principle schematic is occurred for sound wave pulse by the utility model gas firing lock piston rod.
Fig. 4 is the piston rod construction schematic diagram of the utility model.
Fig. 5 is the structure chart of the piston seat of the utility model.
Specific implementation mode
The present invention will be described in detail with reference to the accompanying drawings
Gas type sound acoustical generator structure is as shown in Figure 1, wherein 2 gun bodies, and 14 be well head connector assembly, 15 deflation assemblies,
16 piston seat assemblies, 17 electronic/mobile phone mechanisms, 18 signals receive assembly.
As shown in Fig. 2, Fig. 3 a, Fig. 3 b, a kind of gas firing lock with pressure equalizing chamber, including O-ring (Isosorbide-5-Nitrae, 6,9,
11), gun body 2, piston seat 3, piston rod 5, it is characterised in that：Cavity is designed in gun body 2 and piston seat 3, piston rod 5 is not by
With three sections of cylinder compositions of upper, middle and lower of diameter, wherein stage casing diameter is maximum, and upper diameter is minimum, the piston rod of the utility model
5 structures are as shown in Figure 4；For first O-ring 1 on piston rod 5, second is loaded on work respectively with third O-ring (6,11)
In obturating plug 3, the 4th and the 5th O-ring (4,9) are loaded on outside piston seat 3 respectively, and piston rod 5 is in piston seat 3 and both ends
Across piston seat 3,5 epimere of piston rod is connected after being pierced by compact heap with driving mechanism 8；Piston rod 5 passes through second and third O
Shape circle (6,11) forms upper chamber 10 with the sealing of piston seat 3, and piston seat 3 passes through the 4th and the 5th loaded in 2 cavity of gun body
O-ring (4,9) makes annular groove in gun body 2 be communicated with radial hole on piston seat 3, in being formed between piston rod middle and lower sections and gun body 2
Gas chamber 12, piston rod hypomere with well head after O-ring and gun body sealing by forming lower chamber 13.The piston seat 3 of the utility model
As shown in Figure 5.The gun body 2 is equipped with a hole, and it is well head, hole upper end and 2 interior annular groove phase of gun body that hole lower end, which leads to lower chamber 12,
Logical, after piston seat 3 is packed into gun body 2,2 interior annular groove of gun body is communicated with radial hole on piston seat 3.
As shown in Figure 3a, whole by first O-ring 1 when piston rod 5, which is in lower station-pulse generation mouth, closes
Gas chamber 12 and lower chamber 13 in formation.13 pressure of well head pressure, that is, lower chamber acts on 5 lower face of piston rod at this time, to piston rod
5 generate upwards thrust, while 13 pressure of well head pressure, that is, lower chamber is transmitted to upper chamber 10 also by hole in gun body 2, and act on
In annular surface on 5 stage casing of piston rod, down thrust is generated to piston rod 5, to reduce upwards thrust suffered by piston rod 5.
As shown in Figure 3b, when piston rod 5, which is in upper station-pulse generation mouth, to be opened, lower chamber 13 connects with middle gas chamber 12
Logical, well head pressure acts on annular surface under 5 stage casing of 5 lower face of piston rod and piston rod, while well head pressure is also by gun body 2
Hole be transmitted to upper chamber 10, and annular surface on 5 stage casing of piston rod is acted on, to reduce upwards thrust suffered by piston rod 5.
Claims (3)
1. a kind of gas firing lock with pressure equalizing chamber, including O-ring (Isosorbide-5-Nitrae, 6,9,11), gun body (2), piston seat (3),
Piston rod (5), it is characterised in that：It is designed with cavity in gun body (2) and piston seat (3), piston rod (5) is by the upper of different-diameter
In lower three sections of cylinders composition, on piston rod (5), second and third O-ring (6,11) divide first O-ring (1)
Zhuan Yu not be in piston seat (3), the 4th and the 5th O-ring (4,9) are loaded on piston seat (3) outside respectively, and piston rod (5) is mounted in work
The interior both ends of obturating plug (3) simultaneously pass through piston seat (3), piston rod epimere to be connected with driving mechanism (8) after being pierced by compact heap；Piston rod
(5) it seals to form upper chamber (10) with piston seat by second and third O-ring (6,11), piston seat (3) is loaded on gun body
(2) in cavity, annular groove and radial hole phase on piston seat (3) in gun body (2) are made by the 4th and the 5th O-ring (4,9)
It is logical, gas chamber (12) in being formed between piston rod middle and lower sections and gun body (2)；Piston rod hypomere by O-ring and gun body sealing after with
Well head forms lower chamber (13).
2. the gas firing lock with pressure equalizing chamber as described in claim 1, it is characterised in that：It is set on the gun body (2)
There are a hole, hole lower end to lead to lower chamber (13) i.e. well head, hole upper end is communicated with gun body (2) interior annular groove, when piston seat (3) is packed into rifle
After body (2), gun body (2) interior annular groove is communicated with radial hole on piston seat (3).
3. the gas firing lock with pressure equalizing chamber as described in claim 1, it is characterised in that：The piston rod (5)
It is made of three sections of cylinders of different-diameter, wherein stage casing diameter is maximum, and upper diameter is minimum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335437.4U CN208043192U (en) | 2018-03-12 | 2018-03-12 | A kind of gas firing lock with pressure equalizing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820335437.4U CN208043192U (en) | 2018-03-12 | 2018-03-12 | A kind of gas firing lock with pressure equalizing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208043192U true CN208043192U (en) | 2018-11-02 |
Family
ID=63949934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820335437.4U Active CN208043192U (en) | 2018-03-12 | 2018-03-12 | A kind of gas firing lock with pressure equalizing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208043192U (en) |
-
2018
- 2018-03-12 CN CN201820335437.4U patent/CN208043192U/en active Active
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