CN105756603A - Stationary type sucker-rod annular preventer - Google Patents
Stationary type sucker-rod annular preventer Download PDFInfo
- Publication number
- CN105756603A CN105756603A CN201410793558.XA CN201410793558A CN105756603A CN 105756603 A CN105756603 A CN 105756603A CN 201410793558 A CN201410793558 A CN 201410793558A CN 105756603 A CN105756603 A CN 105756603A
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- glue spraying
- horn mouth
- seal groove
- platen
- blowout
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Abstract
The invention belongs to the technical field of oil fields and particularly relates to a stationary type sucker-rod annular preventer.The stationary type sucker-rod annular preventer comprises a pressure plate, a blowout-prevention rubber core, a middle spacer bush and a four-way joint, wherein the blowout-prevention rubber core and the middle spacer bush are vertically arranged between the pressure plate and the four-way joint in a paralleling mode, the blowout-prevention rubber core and the middle spacer bush are connected, the pressure plate and the four-way joint are connected, the upper end of the blowout-prevention rubber core is connected with the pressure plate, and the lower end of the blowout-prevention rubber core is arranged in the four-way joint.The blowout-prevention rubber core is in a shape of double horn mouths, the size of a sealed part is smaller than the outer diameter of a sucker-rod body, and penetration of a coupling and a centralizer on a sucker rod is promoted.Due to the fact that the blowout-prevention rubber core uses polyurethane good in elastic deformation and resistant to abrasion and corrosion as a raw material, the sucker rod, the coupling, the centralizer and the like greater than the blowout-prevention rubber core in inner hole diameter pass through smoothly, crude oil blowout is effectively prevented, and crude oil on the rod is scraped off.
Description
Technical field
The invention belongs to oilfield technology field, be specifically related to a kind of fixed pumping rod annular preventer.
Background technology
In oilfield downhole operation is constructed, carry out the key that oil well blowout-prevention is construction safety.Blowout preventer of sucker rod must be installed when rod job.At present, without unified blowout preventer of sucker rod on domestic each oil field, the blowout preventer for sucker rod that each equipment manufacturer or oil field user develop exist of a great variety, structure is complicated, cost is high, volume is big, thus increasing shortcomings such as operating labor intensity.By contrasting the blowout preventer for sucker rod of oil field at home constituent parts onsite application, optimize and have developed sucker rod annular preventer, this device have quick and easy for installation, volume is little, lightweight, it is possible to be greatly reduced the labor intensity of operative employee, thus having accomplished essential safety production.
Summary of the invention
It is an object of the invention to provide a kind of fixed pumping rod annular preventer, be used for preventing oil pipe and sucker rod annular space oil-water-gas from gushing out from well head or spraying.
Technical scheme is as follows:
Fixed pumping rod annular preventer, including platen, anti-glue spraying core, middle spacer, four-way, described anti-glue spraying core and middle spacer are vertically located between platen and four-way side by side, described anti-glue spraying core is connected with middle spacer, described platen is connected with four-way, described anti-glue spraying core upper end is connected with platen, and anti-glue spraying core lower end is located in four-way；
Described anti-glue spraying core is by upper horn mouth, fusiformis inner chamber, lower horn mouth is sequentially connected with composition from top to bottom, described upper horn mouth and the lower equal opening of horn mouth are outwardly, described upper horn mouth end and lower horn mouth end are arranged with the first connection dish about anti-glue spraying core central horizontal, this the first connection dish upper, it is provided with the first projection separately below, first lower convexity, described fusiformis lumen outer bump level connection joint has the second connection dish, this the second connection dish upper, it is provided with the second projection separately below, second lower convexity, described fusiformis inner chamber and upper horn mouth, lower horn mouth intersection is respectively formed hollow inwall.
Being cavity in the middle part of described platen, top cylindrical or inner circle are provided with screw thread, and bottom is flange, and this flange lower surface is provided with the first seal groove and the first bolt hole.
Septum set is made up of the semicircular cylinder of two horizontal symmetry, the outer surface intermediate symmetry of two semicircular cylinders is provided with annular groove, the upper and lower end surface symmetric in two ends is provided with the second seal groove, the 3rd seal groove, and side is provided with the 4th seal groove and the 5th seal groove that are located along the same line with two seal grooves, the 3rd seal groove.
The upper logical upper end of described four-way is the cylinder body being connected with anti-glue spraying core, and cylinder body welds with ring flange, and ring flange is provided with the 6th sealed groove, the lower hoop structure led to for the connection of hoop formula；
Described platen is connected by screw bolt passes the first bolt hole and the second bolt hole bolt hole with four-way, described first projection of anti-glue spraying core is mated with the first seal groove of platen and fitted seal, described first lower convexity and the second seal groove coupling also fitted seal, described second projection is mated with the 4th seal groove and fitted seal, and described second lower convexity and the 5th seal groove mate and fitted seal.
The length of described hollow inwall is 20 ~ 40mm, and diameter is 12 ~ 16mm.
Described fusiformis cavity heights is 100 ~ 110mm, and middle part internal diameter is 50 ~ 70mm, and two ends diameter is 12 ~ 16mm, the described big end of upper horn mouth is 60 ~ 90mm, and small end is 12 ~ 16mm, is highly 20 ~ 40mm, the described big end of lower horn mouth is 60 ~ 90mm, and small end is 12 ~ 16mm, is highly 60 ~ 80mm.
Being barrel in the middle part of described four-way, about being arranged with left bypass and right bypass in the middle part of barrel, described right bypass is provided with plug.
Described anti-glue spraying core adopts polyurethane material.
The invention has the beneficial effects as follows: the anti-glue spraying core of the present invention is the double horn degree of lip-rounding, seal position and be smaller in size than this body diameter of sucker rod, be conducive to the box cupling on sucker rod, centralizer to pass；Owing to anti-glue spraying core elastic deformation polyurethane good, wear-resisting, corrosion resistant is raw material, so, the sucker rod bigger than its internal orifice dimension, box cupling, centralizer etc. by time very smooth, effectively prevent crude oil ejection and the crude oil having wiped off on rod member.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 be the present invention partly cut open structural representation；
Fig. 2 is press plate structure schematic diagram；
Fig. 3 is middle spacer structure schematic diagram；
Fig. 4 is anti-glue spraying cored structure schematic diagram；
Fig. 5 is four-way structural representation；
Fig. 6 is present invention scheme of installation on well head.
In figure: 1, platen；2, anti-glue spraying core；3, middle spacer；4, four-way；5, plug；6, the first bolt hole；7, annular groove；8, the first connection dish；9, the second connection dish；10, the first projection；11, the first lower convexity；12, the second projection；13, the second lower convexity；14, the first seal groove；15, the second seal groove；16, the 3rd seal groove；17, the 4th seal groove；18, upper horn mouth；19, lower horn mouth；20, fusiformis inner chamber；21, hollow inwall；22, the second bolt hole；23, barrel；24, upper logical；25, left bypass；26, right bypass；27, lower logical；28, cylinder body；29, the 5th seal groove；30, the 6th seal groove.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of fixed pumping rod annular preventer as shown in Figure 1, including platen, anti-glue spraying core, middle spacer, four-way, anti-glue spraying core and middle spacer are vertically located between platen and four-way side by side, anti-glue spraying core is connected with middle spacer, platen is connected with four-way, described anti-glue spraying core upper end is connected with platen, and anti-glue spraying core lower end is located in four-way；
As shown in Figure 4, anti-glue spraying core is by upper horn mouth, fusiformis inner chamber, lower horn mouth is sequentially connected with composition from top to bottom, upper horn mouth and the lower equal opening of horn mouth are outwardly, described upper horn mouth end and lower horn mouth end are arranged with the first connection dish about anti-glue spraying core central horizontal, this the first connection dish upper, it is provided with the first projection separately below, first lower convexity, described fusiformis lumen outer bump level connection joint has the second connection dish, this the second connection dish upper, it is provided with the second projection separately below, second lower convexity, described fusiformis inner chamber and upper horn mouth, lower horn mouth intersection is respectively formed hollow inwall.
The present embodiment is clamped with between platen and four-way anti-glue spraying core and middle spacer, makes platen, middle spacer, four-way, anti-glue spraying core, form sealing passage from top to bottom, it is prevented that crude oil sprays.Sucker rod annular preventer as shown in Figure 6, during use, is loaded on the gate valve on well head big four top by well head scheme of installation, and platen 1 upper end is connected with the secondary lubricator on well head by screw thread, gets final product work.
Embodiment 2:
On the basis of embodiment 1, being cavity in the middle part of platen, top cylindrical or inner circle are provided with screw thread, and bottom is flange, and this flange lower surface is provided with the first seal groove and the first bolt hole, as shown in Figure 2.
Middle spacer is made up of the semicircular cylinder of two horizontal symmetry, the outer surface intermediate symmetry of two semicircular cylinders is provided with annular groove, the upper and lower end surface symmetric in two ends is provided with the second seal groove, the 3rd seal groove, side is provided with the 4th seal groove and the 5th seal groove that are located along the same line with two seal grooves, the 3rd seal groove, as shown in Figure 3.
The upper logical upper end of four-way is the cylinder body being connected with anti-glue spraying core, and cylinder body welds with ring flange, and ring flange is provided with the 6th sealed groove, lower leads to the hoop structure connected for hoop formula, as shown in Figure 5；
Platen is connected by screw bolt passes the first bolt hole and the second bolt hole bolt hole with four-way, described first projection of anti-glue spraying core is mated with the first seal groove of platen and fitted seal, first lower convexity and the second seal groove coupling also fitted seal, second projection is mated with the 4th seal groove and fitted seal, and the second lower convexity and the 5th seal groove mate and fitted seal.
The present embodiment is clamped with between platen and four-way anti-glue spraying core and middle spacer, makes platen, middle spacer, four-way, anti-glue spraying core, form sealing passage from top to bottom, it is prevented that crude oil sprays.Sucker rod annular preventer as shown in Figure 6, during use, is loaded on the gate valve on well head big four top by well head scheme of installation, and platen 1 upper end is connected with the secondary lubricator on well head by screw thread, gets final product work.
Embodiment 3:
On the basis of embodiment 1, on the basis of embodiment 1, fusiformis inner chamber 20 and upper horn mouth 18, lower horn mouth 19 intersection is respectively formed hollow inwall 21, the length of hollow inwall 21 is 20 ~ 40mm, diameter is 12 ~ 16mm, fusiformis inner chamber 20 is highly 100 ~ 110mm, middle part internal diameter is 50 ~ 70mm, two ends diameter is 12 ~ 16mm, it is 60 ~ 90mm that upper horn mouth 18 is held greatly, small end is 12 ~ 16mm, it is highly 20 ~ 40mm, it is 60 ~ 90mm that lower horn mouth 19 is held greatly, small end is 12 ~ 16mm, it is highly 60 ~ 80mm, main purpose is advantageous for the box cupling on sucker rod, the crude oil on anti-glue spraying core 2 is wiped in centralizer traverse off, prevent crude oil from spraying.When well head scheme of installation uses as shown in Figure 6, being loaded on by sucker rod annular preventer on the gate valve on well head big four top, platen 1 upper end is connected with the secondary lubricator on well head by screw thread, gets final product work.
Embodiment 4:
On the basis of embodiment 1, anti-glue spraying core 2 adopts polyurethane material, owing to the diameter of sucker rod is at 15～25 millimeters, the external diameter of box cupling and centralizer, within 60 millimeters, owing to anti-glue spraying core 2 is raw material with elastic deformation polyurethane good, wear-resisting, corrosion resistant, has good retractility, so, the sucker rod bigger than its internal orifice dimension, box cupling, centralizer etc. by time very smooth, while wiping crude oil thereon off and hold sucker rod all the time tightly, play sealing function.Sucker rod annular preventer as shown in Figure 6, during use, is loaded on the gate valve on well head big four top by well head scheme of installation, and platen 1 upper end is connected with the secondary lubricator on well head by screw thread, gets final product work.
The present embodiment does not have specifically described part to broadly fall into known general knowledge and the known technology of the art, no longer describes in detail one by one herein.
Exemplified as above is only illustration to the present invention, is not intended that the restriction to protection scope of the present invention, every belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (8)
1. fixed pumping rod annular preventer, it is characterized in that: include platen (1), anti-glue spraying core (2), middle spacer (3), four-way (4), described anti-glue spraying core (2) and middle spacer (3) are vertically located between platen (1) and four-way (4) side by side, described anti-glue spraying core (2) is connected with middle spacer (3), described platen (1) is connected with four-way (4), described anti-glue spraying core (2) upper end is connected with platen (1), and anti-glue spraying core (2) lower end is located in four-way (4)；
nullDescribed anti-glue spraying core (2) is by upper horn mouth (18)、Fusiformis inner chamber (20)、Lower horn mouth (19) is sequentially connected with composition from top to bottom，Described upper horn mouth (18) and lower horn mouth (19) all openings are outwardly，Described upper horn mouth (18) end and lower horn mouth end are arranged with the first connection dish (8) about anti-glue spraying core (2) central horizontal，This first connection dish (8) upper、It is provided with the first projection (10) separately below、First lower convexity (11)，Described fusiformis inner chamber (20) outer bumps part level connection joint has the second connection dish (9)，This second connection dish (9) upper、It is provided with the second projection (12) separately below、Second lower convexity (13)，Described fusiformis inner chamber (20) and upper horn mouth (18)、Lower horn mouth (19) intersection is respectively formed hollow inwall (21).
2. fixed pumping rod annular preventer according to claim 1, it is characterized in that: described platen (1) middle part is cavity, top cylindrical or inner circle are provided with screw thread, and bottom is flange, and this flange lower surface is provided with the first seal groove (14) and the first bolt hole (6).
3. fixed pumping rod annular preventer according to claim 2, it is characterized in that: septum set (3) is made up of the semicircular cylinder of two horizontal symmetry, the outer surface intermediate symmetry of two semicircular cylinders is provided with annular groove (7), the upper and lower end surface symmetric in two ends is provided with the second seal groove (15), the 3rd seal groove (16), and side is provided with the 4th seal groove (17) and the 5th seal groove (30) that are located along the same line with two seal grooves (15), the 3rd seal groove (16).
4. fixed pumping rod annular preventer according to claim 3, it is characterized in that: the upper logical upper end of described four-way is the cylinder body (28) being connected with anti-glue spraying core, cylinder body (28) welds with ring flange, ring flange is provided with the 6th sealed groove, the hoop structure that lower logical (27) connect for hoop formula；
Described platen (1) is connected by screw bolt passes the first bolt hole (6) and the second bolt hole (22) bolt hole with four-way (4), described first projection (10) of anti-glue spraying core (2) is mated with first seal groove (14) of platen (1) and fitted seal, described first lower convexity (11) is mated with the second seal groove (15) and fitted seal, described second projection (12) is mated with the 4th seal groove (16) and fitted seal, and described second lower convexity (13) is mated with the 5th seal groove (17) and fitted seal.
5. fixed pumping rod annular preventer according to claim 1, it is characterised in that: the length of described hollow inwall (21) is 20 ~ 40mm, and diameter is 12 ~ 16mm.
6. fixed pumping rod annular preventer according to claim 5, it is characterized in that: described fusiformis inner chamber (20) is highly 100 ~ 110mm, middle part internal diameter is 50 ~ 70mm, two ends diameter is 12 ~ 16mm, and described upper horn mouth (18) end greatly is 60 ~ 90mm, and small end is 12 ~ 16mm, it is highly 20 ~ 40mm, described lower horn mouth (19) end greatly is 60 ~ 90mm, and small end is 12 ~ 16mm, is highly 60 ~ 80mm.
7. fixed pumping rod annular preventer according to claim 4, it is characterized in that: described four-way (4) middle part is barrel (23), being arranged with left bypass (25) and right bypass (26) about barrel (23) middle part, described right bypass (26) is provided with plug (5).
8. fixed pumping rod annular preventer according to claim 1, it is characterised in that: described anti-glue spraying core (2) adopts polyurethane material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793558.XA CN105756603A (en) | 2014-12-20 | 2014-12-20 | Stationary type sucker-rod annular preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793558.XA CN105756603A (en) | 2014-12-20 | 2014-12-20 | Stationary type sucker-rod annular preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105756603A true CN105756603A (en) | 2016-07-13 |
Family
ID=56340574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410793558.XA Withdrawn CN105756603A (en) | 2014-12-20 | 2014-12-20 | Stationary type sucker-rod annular preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105756603A (en) |
-
2014
- 2014-12-20 CN CN201410793558.XA patent/CN105756603A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160713 |
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| WW01 | Invention patent application withdrawn after publication |