CN106351610A - Well mouth protection device and special tool - Google Patents
Well mouth protection device and special tool Download PDFInfo
- Publication number
- CN106351610A CN106351610A CN201610872654.2A CN201610872654A CN106351610A CN 106351610 A CN106351610 A CN 106351610A CN 201610872654 A CN201610872654 A CN 201610872654A CN 106351610 A CN106351610 A CN 106351610A
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- China
- Prior art keywords
- well mouth
- bull stick
- fixture block
- binding nut
- clamping
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Classifications
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- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0021—Safety devices, e.g. for preventing small objects from falling into the borehole
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- 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)
- Earth Drilling (AREA)
Abstract
The invention provides a well mouth protection device and a special tool. The well mouth protection device comprises a connecting pipe arranged in the vertical direction, wherein a clamping rotary rod is arranged in the connecting pipe in the axial direction, an eccentric crank hinge pin is arranged above the clamping rotary rod in the vertical direction, the axis of the eccentric crank hinge pin and the axis of a crank clamping rotary rod are mutually staggered, and the bottom end of the eccentric crank hinge pin is fixedly connected with the top end of the clamping rotary rod. The bottom end of the clamping rotary rod is connected with the top end of a locking lead screw, the locking lead screw comprises an upper threaded section located at the upper portion of the locking lead screw and a lower threaded section located at the lower portion of the locking lead screw, a lower clamping nut is screwed to the lower threaded section of the locking lead screw, an upper clamping nut is screwed on the upper threaded section of the locking lead screw, and the lower portion of the upper clamping nut is a shape of a circular truncated cone with a downward cone corner. The well mouth protection device and the special tool can prevent foreign matter from dropping into a well and thoroughly destroying the well, the event that well mouth accessories are stolen is prevented fundamentally, and safety guarantee is provide for oilfield production.
Description
Technical field
The present invention relates to a kind of well mouth protector and specific purpose tool.
Background technology
It is that protection abandoned well, length stop well, pending well and the Special wellhead protection device that designs in well mouth protector.
There are up to ten thousand mouthfuls of oil wells in oil field, and these oil wells are dispersed between city and township open country.Quantity is many, and distribution is wide, management work
Difficulty is big, and the stolen event of well head often occurs, and especially some abandoned wells, length stops well, pending well.These wells are not due to for a long time
With, then the four-way on well head, valve, shut-in well lid, clip, bolt etc. be easy to stolen.Once these wellhead assemblies are stolen, will
So that well head is opened wide, and unmanned concern, it is easy to cause foreign body to fall in well, makes oil well thoroughly destroy for a long time.Cause greatly to damage
Lose.Meanwhile, if there is pressure down-hole, it is excessive and erupt also to easily cause pressure, jeopardizes personal safety around.
In addition, abandoned well, length stop well, the well head processing mode of pending well usually installs a shut-in well lid additional, oil well is long
Time is in closed state, and the data such as pressure in well cannot judge, if rashly opening, can have an accident.
Content of the invention
It is an object of the invention to provide one kind can avoid foreign body to fall in well, oil well is made thoroughly to destroy, and fundamentally
Prevent the event stealing wellhead hardware from occurring, producing for oil field provides well mouth protector and the specific purpose tool of safety guarantee.Should
Well mouth protector is arranged on well head, can play the security protection to well head and borehole pressure detection effect.
Well mouth protector of the present invention, including vertically arranging the connecting tube made using steel, in connecting tube
It is provided with clamping bull stick vertically, the top of clamping bull stick is vertically provided with eccentric crank bearing pin, the axle of eccentric crank bearing pin
The axis that line and crank clamp bull stick mutually staggers setting, the bottom of eccentric crank bearing pin and the top fixing phase clamping bull stick
Even；
The top of the locking screw that the bottom of clamping bull stick is made with steel is connected, and locking screw is included positioned at locking screw
The upper thread segment on top and the lower thread segment being located at locking screw bottom, on the thread rotary orientation on upper thread segment and lower thread segment
Thread rotary orientation is opposite each other, and the lower thread segment of locking screw is installed with lower binding nut, and the upper thread segment of locking screw revolves
Equipped with upper binding nut, the bottom of upper binding nut is cone angle truncated cone-shaped directed downwardly, and the top of lower binding nut is for cone angle upward
Truncated cone-shaped, be located in the cavity between upper binding nut and lower binding nut in connecting tube and be provided with multiple cards around locking screw
Block, can be matched with the surface of the truncated cone-shaped of upper binding nut bottom in the top of each fixture block side inwardly, each fixture block court
In the bottom of side can match with the surface of the truncated cone-shaped on lower binding nut top, each fixture block can be in the work of back-moving spring
Moved radially inwards with lower edge locking screw.
The well mouth protector of the present invention, the outside of wherein said upper binding nut and lower binding nut is provided with the anchor of tubular
Determine body, the top of anchoring body is fixedly linked with the bottom in connecting tube, position corresponding with each fixture block difference one in anchoring body
Individual be provided with fixture block via, each fixture block radially fits through corresponding fixture block via using gap respectively.
The well mouth protector of the present invention, the side wall of wherein said anchoring body is vertically provided with gathering sill, described
Radially mounted respectively on the lateral wall of upper binding nut and lower binding nut have slip pin, and slip pin radially prolongs
Stretch in the gathering sill penetrating in anchoring body.
The well mouth protector of the present invention, the quantity of wherein said fixture block is 36, and each fixture block includes one respectively
The pedestal of cuboid, the upper and lower of pedestal end face inwardly is radially provided with a stage clip respectively and places counterbore, described multiple
The outer end of position spring withstands on the bottom that counterbore placed by corresponding stage clip, and the inner end of back-moving spring withstands on spring and blocks, and spring blocks up logical
Cross on the threaded side wall being arranged on described anchoring body, the middle part of pedestal end face outwardly and the inner end of jacking block are connected to one
Body, jacking block end face outwardly is the arcwall face of middle part outwardly convex, and jacking block end face outwardly is laid with multiple teeth.
The well mouth protector of the present invention, phase is installed with the bottom hanging short circuit sleeve in the top of wherein said connecting tube
Even, the top hanging short circuit sleeve is connected with the middle part installation hanging flange bottom.
The well mouth protector of the present invention, the bottom of wherein said anchoring body be threaded connection be fixed with bottom block up, described
Hang flange to be connected with the flange of well head four-way with anti-theft nut using anti-theft bolt.
The well mouth protector of the present invention, wherein said suspension flange end face directed downwardly is provided with well head steel ring, described folder
The top of tight bull stick lateral wall is fixed with spacing back-up ring.
The well mouth protector of the present invention, the top of wherein said suspension flange is installed with the bottom of nipple and is connected, short
The top of adapter is connected with valve, and the outside of valve and top are provided with anti-theft protective cover, and the bottom of anti-theft protective cover is provided with opening, described
Hang flange to be located in anti-theft protective cover, anti-theft protective cover is provided with and can will hang the lock that flange is locked together with anti-theft protective cover.
The well mouth protector of the present invention, wherein said anti-theft protective cover lateral wall is provided with handle, the side of nipple
Pressure gauge and pressure release safety valve are provided with wall, anti-theft protective cover is provided with the position corresponding with pressure gauge and pressure release safety valve
Pressure watch window, is provided with the gland that transparent material is made at pressure watch window.
For rotating the specific purpose tool opening described well mouth protector, including the sleeve vertically arranging, cover
The top of cylinder is fixedly linked with the bottom of spanner bull stick, and spanner bull stick is vertically arranged, and the top of spanner bull stick is provided with and turns
Fixed handle, the middle and upper part of hub internal bore is fitted with mandrel, the lower surface of mandrel is vertically provided with eccentric crank bearing pin and inserts
Enter hole, when described sleeve is sleeved on the lateral wall on described clamping bull stick top with gap cooperation, described bias crank bearing pin
Inserted in the hole with the eccentric crank bearing pin of gap cooperation insertion.
The well mouth protector of the present invention and specific purpose tool, when using, can open above-mentioned well head protection dress by being used for rotating
The sleeve of the specific purpose tool put is sleeved on the lateral wall on described clamping bull stick top with gap cooperation, now eccentric crank bearing pin
Then inserted in the hole with the eccentric crank bearing pin of gap cooperation insertion, then grasp turning handle rotating spanner bull stick again, you can
Allow clamping bar rotation.When needing clamping bull stick, eccentric crank bearing pin, fixture block etc. are fixed in production string, need to make
With the present invention for rotating the specific purpose tool opening above-mentioned well mouth protector, can pass through to clamp bar rotation locking screw,
Binding nut, lower binding nut is allowed to do approximating move toward one another along locking screw, using upper binding nut, lower clamping
The surface of the truncated cone-shaped of nut pushes out each fixture block, and each fixture block then can compress back-moving spring, while being affixed to oil reservoir
The inwall of sleeve pipe, and finally tightly withstand on the inwall of production string, the portions such as bull stick, eccentric crank bearing pin, fixture block will be clamped
Part is locked in production string.And when needing to take out well mouth protector it is also necessary to use above-mentioned for rotating unlatching
The specific purpose tool direction of well mouth protector rotates clamping bull stick, allows binding nut, lower binding nut to do along locking screw
Motion away from each other to each other, allows the distance between binding nut, lower binding nut become big, then each fixture block will reset
The inwall of production string is left under the thrust of spring 18, thus can be by portions such as clamping bull stick, eccentric crank bearing pin, fixture blocks
Part takes out production string 32.Therefore, the well mouth protector of the present invention can avoid foreign body to fall in well makes oil well thoroughly destroy, and
Fundamentally prevent the event stealing wellhead hardware from occurring, producing for oil field provides safety guarantee.
Well mouth protector of the present invention, using the exclusive design of the present invention, it has triple protection device, and first protects again
It is protective cover it is necessary to protective cover just can be opened using specific purpose tool.Second again protection be anti-theft bolt, after opening protective cover, can
To see that big four is connected by anti-theft bolt with wellhead flange it is necessary to four-way just can be removed by specific purpose tool.The triple anti-
Shield is the Protective lock including compositions such as clamping bull stick, eccentric crank bearing pin, fixture blocks, due to axis and the crank of eccentric crank bearing pin
The axis of clamping bull stick mutually staggers setting, only fixture block could be allowed to leave oil using special instrument insertion bias crank bearing pin
The inwall of layer sleeve pipe, and then just can remove the parts such as clamping bull stick in well head, eccentric crank bearing pin, fixture block.Above-mentioned cleverly
Design overcomes the defect of prior art presence, has prominent substantive distinguishing features and significantly improves.
Below in conjunction with the accompanying drawings well mouth protector of the present invention is described in further detail.
Brief description
Fig. 1 is the main view profile of the structural representation of well mouth protector of the present invention；
Fig. 2 is the upper binding nut of well mouth protector of the present invention and the enlarged drawing of lower binding nut part；
Fig. 3 is the main view profile of the specific purpose tool for rotating the well mouth protector opening the present invention.
Specific embodiment
As depicted in figs. 1 and 2, well mouth protector of the present invention, is made using steel including vertically arranging
Connecting tube 13, is provided with clamping bull stick 33 vertically in connecting tube 13, the top of clamping bull stick 33 is vertically provided with bias and shakes
Bearing pin 30, axis that the axis of eccentric crank bearing pin 30 clamps bull stick 33 with crank mutually staggers setting, eccentric crank bearing pin
30 bottom is fixedly linked with the top of clamping bull stick 33；
The top of the locking screw 14 that the bottom of clamping bull stick 33 is made with steel is connected, and locking screw 14 is included positioned at lock
The upper thread segment on tight leading screw 14 top and the lower thread segment being located at locking screw 14 bottom, the thread rotary orientation on upper thread segment with
Thread rotary orientation on thread segment is opposite each other, and the lower thread segment of locking screw 14 is installed with lower binding nut 21, locking screw
Binding nut 16 is installed with 14 upper thread segment, the bottom of upper binding nut 16 is cone angle truncated cone-shaped directed downwardly, lower clamping
The top of nut 21 is cone angle truncated cone-shaped upward, is located between upper binding nut 16 and lower binding nut 21 in connecting tube 13
It is provided with multiple fixture blocks 20 around locking screw 14, the top of each fixture block 20 side inwardly can be with upper binding nut 16 in cavity
Match in the surface of the truncated cone-shaped of bottom, the bottom of each fixture block 20 side inwardly can be with the round platform on lower binding nut 21 top
Matching in the surface of shape, can be matched with the inwall of production string 32 in each fixture block 20 side outwardly, and each fixture block 20 can be
Move radially inwards along locking screw 14 in the presence of back-moving spring 18.
As a further improvement on the present invention, the outside of above-mentioned upper binding nut 16 and lower binding nut 21 is provided with tubular
Anchoring body 15, the top of anchoring body 15 is fixedly linked with the bottom of connecting tube 13, corresponding with each fixture block 20 in anchoring body 15
Position be provided with fixture block via 34 for one respectively, each fixture block 20 radially fits through corresponding fixture block mistake using gap respectively
Hole 34.
As a further improvement on the present invention, the side wall of above-mentioned anchoring body 15 is vertically provided with gathering sill 35, on
Radially mounted respectively on the lateral wall of binding nut 16 and lower binding nut 21 have slip pin 17, and slip pin 17 is radially
Stretch out in the gathering sill 35 penetrating in anchoring body 15.
As a further improvement on the present invention, the quantity of above-mentioned fixture block 20 is 36, and each fixture block 20 includes one respectively
The pedestal 36 of individual cuboid, the upper and lower of pedestal 36 end face inwardly is radially provided with a stage clip respectively and places counterbore
37, the outer end of back-moving spring 18 withstands on the bottom that counterbore 37 placed by corresponding stage clip, and the inner end of back-moving spring 18 withstands on spring and blocks up
On 19, spring blocks up and 19 is threaded connection on the side wall be arranged on anchoring body 15, the middle part of pedestal end face outwardly and jacking block
38 inner end is connected as one, and jacking block 38 end face outwardly is the arcwall face of middle part outwardly convex, cloth on jacking block end face outwardly
It is provided with multiple teeth 36.
As a further improvement on the present invention, phase is installed in the top of above-mentioned connecting tube 13 and the bottom hanging short circuit sleeve 11
Even, the top hanging short circuit sleeve 11 is connected with the middle part installation hanging flange 8 bottom.
As a further improvement on the present invention, the bottom of above-mentioned anchoring body 15 is threaded connection and is fixed with bottom stifled 22, hangs
Hang flange 8 to be connected with the flange of well head four-way 31 with anti-theft nut 10 using anti-theft bolt 9.
As a further improvement on the present invention, above-mentioned suspension flange 8 end face directed downwardly is provided with well head steel ring 12, and clamping turns
The top of bar 33 lateral wall is fixed with spacing back-up ring 40.
As a further improvement on the present invention, the top of above-mentioned suspension flange 8 is installed with the bottom of nipple 4 and is connected, short
The top of adapter 4 is connected with valve 2, and the outside of valve 2 and top are provided with anti-theft protective cover 2, and the bottom of anti-theft protective cover 2 is provided with out
Mouthful, hang flange 8 and be located in anti-theft protective cover 2, anti-theft protective cover 2 is provided with and can will hang what flange 8 and anti-theft protective cover 2 lock together
Lock 7.
As a further improvement on the present invention, above-mentioned anti-theft protective cover 2 lateral wall on handle 1, the side of nipple 4 are installed
Pressure gauge 6 and pressure release safety valve 5 are provided with wall, the position corresponding with pressure gauge 6 and pressure release safety valve 5 on anti-theft protective cover 2
Place is provided with pressure watch window 28, is provided with the gland 29 that transparent material is made at pressure watch window 28.Above-mentioned design makes well
Mouth protecting device has gas pressure checking function, can detect the pressure in flowline or in sleeve pipe, protective cover has pressure
Watch window 28 then can be clearly observed borehole pressure.
As shown in figure 3, for rotating the specific purpose tool opening above-mentioned well mouth protector, including vertically arrange
Sleeve 41, the top of sleeve 41 is fixedly linked with the bottom of spanner bull stick 44, and spanner bull stick 44 is vertically arranged, and spanner turns
The top of bar 44 is provided with turning handle 45, and the middle and upper part of sleeve 41 endoporus is fitted with mandrel 42, and on the lower surface of mandrel 42, edge is perpendicular
Nogata, to being provided with eccentric crank bearing pin patchhole 43, is sleeved on, when sleeve 41 is coordinated with gap, the lateral wall clamping bull stick 33 top
When upper, eccentric crank bearing pin 30 is with the eccentric crank bearing pin patchhole 43 of gap cooperation insertion.The eccentric crank of this specific purpose tool
Eccentric throw between the axis of the axis of bearing pin patchhole 43 and sleeve 41 endoporus has to the axis with eccentric crank bearing pin 30
Eccentric throw between the axis that crank clamps bull stick 33 is equal, and the sleeve 41 of specific purpose tool so just can be allowed to coordinate with gap
It is sleeved on the lateral wall on clamping bull stick 33 top.By change specific purpose tool eccentric crank bearing pin patchhole 43 axis and
Eccentric throw between the axis of sleeve 41 endoporus, and change the axis of eccentric crank bearing pin 30 and the axle of crank clamping bull stick 33
Eccentric throw between line is it is possible to allow stranger be hard to turn on the well mouth protector of the present invention.
The well mouth protector of the present invention and specific purpose tool, when using, can open above-mentioned well head protection dress by being used for rotating
The sleeve 41 of the specific purpose tool put is sleeved on the lateral wall on clamping bull stick 33 top with gap cooperation, now eccentric crank bearing pin
30, in the eccentric crank bearing pin patchhole 43 of gap cooperation insertion, then to grasp turning handle 45 rotating spanner bull stick again
44, you can allow clamping bull stick 33 to rotate.When clamping bull stick, eccentric crank bearing pin, fixture block etc. are fixed on production string 32 by needs
When interior, need using the present invention for rotating the specific purpose tool opening above-mentioned well mouth protector, can be by clamping bull stick 33
Rotation lock leading screw 14, allows binding nut 16, lower binding nut 21 do approximating move toward one another along locking screw 14,
Push out each fixture block 20 using the surface of upper binding nut 16, the truncated cone-shaped of lower binding nut 21, each fixture block 20 then can
While compression back-moving spring 18, it is affixed to the inwall of production string 32, and finally tightly withstands on the inwall of production string 32
On, the parts such as clamping bull stick, eccentric crank bearing pin, fixture block are locked in production string 32.And work as and need to take out well head
It is also necessary to rotate clamping bull stick using for rotating the specific purpose tool direction opening above-mentioned well mouth protector during preventer
33, allow binding nut 16, lower binding nut 21 do away from each other to each other moving along locking screw 14, allow binding nut
16th, the distance between lower binding nut 21 becomes big, then each fixture block 20 will leave oil under the thrust of back-moving spring 18
The parts such as clamping bull stick, eccentric crank bearing pin, fixture block 20 thus can be taken out production string 32 by the inwall of layer sleeve pipe 32.Cause
This, the well mouth protector of the present invention can avoid foreign body to fall in well makes oil well thoroughly destroy, and fundamentally prevents from stealing well
The event of mouth accessory occurs, and producing for oil field provides safety guarantee.
The well mouth protector of the present invention is arranged on well head, may also function as the security protection to well head and borehole pressure inspection
Survey acts on.
Well mouth protector well mouth protector of the present invention has a triple protection device, first again protection be protective cover, must
Just need to can open protective cover using specific purpose tool.Second again protection be anti-theft bolt, it can be seen that big four after opening protective cover
It is connected by anti-theft bolt with wellhead flange it is necessary to four-way just can be removed by specific purpose tool.Triple protection are including clamping
The Protective lock of the compositions such as bull stick, eccentric crank bearing pin, fixture block, because axis and the crank of eccentric crank bearing pin clamp the axle of bull stick
Line mutually staggers setting, only fixture block could be allowed to leave in production string using the special eccentric crank bearing pin of instrument insertion
Wall, and then just can remove the parts such as clamping bull stick in well head, eccentric crank bearing pin, fixture block.
The installation procedure of well mouth protector of the present invention:
1st, manifold connects well head and pollution tank car, releases residual liquid in well, release；
2nd, cementing truck, tank car fill well head kill-job, and blowout prevention is processed；
3rd, with anti-theft bolt, well head four-way is connected on wellhead flange；
4th, fixture block 20 etc. is transferred in pit shaft, and locked；
5th, protective cover is buckled, anti-theft bolt of screwing on, install.
Well mouth protector disassembly procedure of the present invention:
1st, oil pipe, annular pressure meter reading are observed；
2nd, take off anti-theft bolt with specific purpose tool, take off protective cover；
3rd, open fixture block 20 with specific purpose tool, take off the Protective lock of the compositions such as clamping bull stick, eccentric crank bearing pin, fixture block；
4th, take off anti-theft bolt with specific purpose tool, take off big four, dismounting finishes.
Claims (10)
1. well mouth protector it is characterised in that: include the connecting tube (13) made using steel that vertically arranges, even
It is provided with clamping bull stick (33) vertically, the top of clamping bull stick (33) is vertically provided with eccentric crank bearing pin in adapter (13)
(30), the axis of eccentric crank bearing pin (30) and crank clamp the axis of bull stick (33) and mutually stagger setting, eccentric crank bearing pin
(30) bottom is fixedly linked with the top of clamping bull stick (33)；
The bottom of clamping bull stick (33) is connected with the top of the locking screw (14) made using steel, and locking screw (14) includes
Upper thread segment positioned at locking screw (14) top and the lower thread segment being located at locking screw (14) bottom, the spiral shell on upper thread segment
Stricture of vagina rotation direction is opposite each other with the thread rotary orientation on lower thread segment, and the lower thread segment of locking screw (14) is installed with lower binding nut
(21), the upper thread segment of locking screw (14) is installed with binding nut (16), the bottom of upper binding nut (16) is cone angle
Truncated cone-shaped directed downwardly, the top of lower binding nut (21) is to be located at upper clamping spiral shell in cone angle truncated cone-shaped upward, connecting tube (13)
It is provided with multiple fixture blocks (20), each fixture block around locking screw (14) in cavity between female (16) and lower binding nut (21)
(20) can be matched with the surface of the truncated cone-shaped of upper binding nut (16) bottom in the top of side inwardly, each fixture block (20) court
In the bottom of side can match with the surface of the truncated cone-shaped on lower binding nut (21) top, each fixture block (20) can reset
Move radially inwards along locking screw (14) in the presence of spring (18).
2. well mouth protector according to claim 1 it is characterised in that: described upper binding nut (16) and lower clamping spiral shell
The outside of female (21) is provided with the anchoring body (15) of tubular, the top of anchoring body (15) and the bottom fixing phase in connecting tube (13)
Even, the upper position corresponding with each fixture block (20) of anchoring body (15) is provided with fixture block via (34), each fixture block (20) for one respectively
Radially corresponding fixture block via (34) is fitted through using gap respectively.
3. well mouth protector according to claim 2 it is characterised in that: along vertically on the side wall of described anchoring body (15)
Direction is provided with gathering sill (35), radially mounted respectively on the lateral wall of described upper binding nut (16) and lower binding nut (21)
There is slip pin (17), slip pin (17) extends radially outward in the gathering sill (35) penetrating in anchoring body (15).
4. well mouth protector according to claim 3 it is characterised in that: the quantity of described fixture block (20) be 36,
Each fixture block (20) includes the pedestal (36) of a cuboid, the upper and lower edge respectively of pedestal (36) end face inwardly respectively
It is radially provided with a stage clip and places counterbore (37), the outer end of described back-moving spring (18) withstands on corresponding stage clip and places counterbore (37)
Bottom, the inner end of back-moving spring (18) withstands on spring and blocks up on (19), and spring blocks up (19) and is threaded connection and is arranged on described anchor
Determine on the side wall of body (15), the middle part of pedestal end face outwardly is connected as one with the inner end of jacking block (38), jacking block (38) court
Outer end face is the arcwall face of middle part outwardly convex, and jacking block end face outwardly is laid with multiple teeth (36).
5. well mouth protector according to claim 4 it is characterised in that: the top of described connecting tube (13) with hang short
The bottom of female connector cylinder (11) is installed and is connected, and phase is installed at the top hanging short circuit sleeve (11) and the middle part hanging flange (8) bottom
Even.
6. well mouth protector according to claim 5 it is characterised in that: the bottom of described anchoring body (15) pass through screw thread
It is fixedly connected with bottom and blocks up (22), described suspension flange (8) adopts anti-theft bolt (9) and anti-theft nut (10) and well head four-way (31)
Flange be connected.
7. well mouth protector according to claim 7 it is characterised in that: on described suspension flange (8) end face directed downwardly
It is provided with well head steel ring (12), the top of described clamping bull stick (33) lateral wall is fixed with spacing back-up ring (40).
8. the well mouth protector according to any one of claim 1 to 7 it is characterised in that: described suspension flange (8)
The bottom of top and nipple (4) install and be connected, the top of nipple (4) is connected with valve (2), the outside of valve (2) with
Top is provided with anti-theft protective cover (2), and the bottom of anti-theft protective cover (2) is provided with opening, and described suspension flange (8) is located at anti-theft protective cover (2)
Interior, anti-theft protective cover (2) is provided with and can will hang the lock (7) that flange (8) is locked together with anti-theft protective cover (2).
9. well mouth protector according to claim 8 it is characterised in that: the upper peace of described anti-theft protective cover (2) lateral wall
Equipped with handle (1), the side wall of nipple (4) is provided with pressure gauge (6) and pressure release safety valve (5), anti-theft protective cover (2) is upper and presses
It is provided with pressure watch window (28), pressure watch window (28) place is pacified at power table (6) and the corresponding position of pressure release safety valve (5)
The gland (29) made equipped with transparent material.
10. it is used for rotating the specific purpose tool opening the well mouth protector any one of claim 1 to 7, its feature
It is: include the sleeve (41) vertically arranging, the top of sleeve (41) is fixedly linked with the bottom of spanner bull stick (44),
Spanner bull stick (44) is vertically arranged, and the top of spanner bull stick (44) is provided with turning handle (45), sleeve (41) endoporus
Middle and upper part is fitted with mandrel (42), and the lower surface of mandrel (42) is vertically provided with eccentric crank bearing pin patchhole (43),
When described sleeve (41) is sleeved on the lateral wall on described clamping bull stick (33) top with gap cooperation, described bias crank pin
Axle (30) is with eccentric crank bearing pin patchhole (43) of gap cooperation insertion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610872654.2A CN106351610B (en) | 2016-09-30 | 2016-09-30 | Well mouth protector and specific purpose tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610872654.2A CN106351610B (en) | 2016-09-30 | 2016-09-30 | Well mouth protector and specific purpose tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106351610A true CN106351610A (en) | 2017-01-25 |
| CN106351610B CN106351610B (en) | 2018-10-30 |
Family
ID=57865882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610872654.2A Active CN106351610B (en) | 2016-09-30 | 2016-09-30 | Well mouth protector and specific purpose tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106351610B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361005A (en) * | 2018-03-15 | 2018-08-03 | 延安大学 | A kind of oil pumping machine well head safety guard |
| CN108729882A (en) * | 2018-04-17 | 2018-11-02 | 韩文晓 | A kind of vertical shaft protection tube |
| CN109025885A (en) * | 2018-08-29 | 2018-12-18 | 盘锦禹帝科技实业有限公司 | The well mouth protector of recyclable kill-job |
| CN109373049A (en) * | 2019-01-04 | 2019-02-22 | 王金霞 | A kind of oil well head Theft-proof collar clamp gate valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108361005A (en) * | 2018-03-15 | 2018-08-03 | 延安大学 | A kind of oil pumping machine well head safety guard |
| CN108361005B (en) * | 2018-03-15 | 2020-03-27 | 延安大学 | A safety protection device for the wellhead of a pumping unit |
| CN108729882A (en) * | 2018-04-17 | 2018-11-02 | 韩文晓 | A kind of vertical shaft protection tube |
| CN109025885A (en) * | 2018-08-29 | 2018-12-18 | 盘锦禹帝科技实业有限公司 | The well mouth protector of recyclable kill-job |
| CN109373049A (en) * | 2019-01-04 | 2019-02-22 | 王金霞 | A kind of oil well head Theft-proof collar clamp gate valve |
Also Published As
| Publication number | Publication date |
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| CN106351610B (en) | 2018-10-30 |
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