CN105781471A - Sucker rod annular blowout preventer - Google Patents
Sucker rod annular blowout preventer Download PDFInfo
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- CN105781471A CN105781471A CN201410793563.0A CN201410793563A CN105781471A CN 105781471 A CN105781471 A CN 105781471A CN 201410793563 A CN201410793563 A CN 201410793563A CN 105781471 A CN105781471 A CN 105781471A
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- horn mouth
- seal groove
- glue spraying
- sucker rod
- way
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Abstract
The invention belongs to the technical field of the oil field, and particularly relates to a sucker rod annular blowout preventer. The sucker rod annular blowout preventer includes a pressing disc, a blowout-proof rubber core, an intermediate spacer sleeve, and a four-way part; the blowout-proof rubber core and the intermediate spacer sleeve are vertically arranged between the pressing disc and the four-way part in parallel; the blowout-proof rubber core is connected to the intermediate spacer sleeve; the pressing disc is connected to the four-way part; and the upper end of the blowout-proof rubber core is connected to the pressing disc, and the lower end of the blowout-proof rubber core is arranged in the four-way part. According to the invention, the blowout-proof rubber core is dual horn mouth-shaped, the size of a sealing part is less than the outer diameter of a sucker rod body, and then a coupling and a centering guide arranged on the sucker rod can easily pass through the blowout-proof rubber core; and the blowout-proof rubber core is made of polyurethane which is excellent in elastic deformation, wear-resisting and corrosion resisting, so the sucker rod, the coupling and the centering guide which are larger than the inner diameter of the blowout-proof rubber core can smoothly pass through the blowout-proof rubber core, and in this way, crude oil blowout can be effectively prevented, and crude oil on the rod can be scraped off.
Description
Technical field
The invention belongs to oilfield technology field, be specifically related to sucker 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 sucker 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.
Sucker 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；
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.
Described anti-glue spraying core is sequentially connected with from top to bottom is formed by upper horn mouth, fusiformis inner chamber, lower horn mouth, described upper horn mouth and the lower equal opening of horn mouth are outwardly, described upper horn mouth terminal horizontal is provided with the first connection dish, the above and below of this first connection dish is respectively equipped with the first projection, the first lower convexity, described fusiformis lumen outer bump level connection joint has the second connection dish, the above and below of this second connection dish is respectively equipped with the second projection, the second lower convexity, and described fusiformis inner chamber and upper horn mouth, lower horn mouth intersection are respectively formed hollow inwall.
Septum set is made up of the semicircular cylinder of two horizontal symmetry, and the outer surface intermediate symmetry of two semicircular cylinders is provided with annular groove, and the upper and lower end surface symmetric in two ends is provided with the second seal groove, the 3rd seal groove；
Described four-way top is the four-way ring flange being connected with anti-glue spraying core, and ring flange upper end is counterbore, and counterbore end face has the 4th seal groove, flange outer ring to be the second bolt hole, described lower horn mouth be located at four-way upper logical in, lower lead to the hoop structure connected for 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 3rd seal groove and fitted seal, and described second lower convexity and the 4th seal groove mate and fitted seal.
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.
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 first preventer of the present invention partly cut open structural representation；
Fig. 2 is press plate structure schematic diagram；
Fig. 3 is spacer structure schematic diagram in the first；
Fig. 4 is the first anti-glue spraying cored structure schematic diagram；
Fig. 5 is the first four-way structural representation；
Fig. 6 is the first preventer of present invention scheme of installation on well head；
Fig. 7 be the second preventer of the present invention partly cut open structural representation；
Fig. 8 is spacer structure schematic diagram in the second；
Fig. 9 is the anti-glue spraying cored structure schematic diagram of the second；
Figure 10 is the second four-way structural representation；
Figure 11 is the second preventer of the 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；31, four-way ring flange.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of sucker rod annular preventer as shown in Figure 1, including platen 1, anti-glue spraying core 2, middle spacer 3, four-way 4, anti-glue spraying core 2 and middle spacer 3 are vertically located between platen 1 and four-way 4 side by side, anti-glue spraying core 2 is connected with middle spacer 3, platen 1 is connected with four-way 4, 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；
Being cavity in the middle part of platen 1, 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, as in figure 2 it is shown,；
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 the equal opening of lower horn mouth 19 are outwardly, described upper horn mouth 18 terminal horizontal is provided with the first connection dish 8, this the 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 the 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, as shown in Figure 4；
Middle spacer 3 is made up of the semicircular cylinder of two horizontal symmetry, and the outer surface intermediate symmetry of two semicircular cylinders is provided with annular groove 7, and the upper and lower end surface symmetric in two ends is provided with the second seal groove the 15, the 3rd seal groove 16, as shown in Figure 3；
Four-way 4 top is the four-way ring flange 31 being connected with anti-glue spraying core 2, and ring flange upper end is counterbore, and counterbore end face has the 4th seal groove 17, flange outer ring is the second bolt hole 22, described lower horn mouth 19 is located in upper logical the 24 of four-way 4, the lower logical 27 hoop structures connected for hoop formula, as shown in Figure 5；
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, first projection 10 of anti-glue spraying core 2 is mated with the first seal groove 14 of platen 1 and fitted seal, first lower convexity 11 mates with the second seal groove 15 and fitted seal, second projection 12 is mated with the 3rd seal groove 16 and fitted seal, second lower convexity 13 mates with the 4th seal groove 17 and fitted seal, makes platen 1, anti-glue spraying core 2.Middle spacer 3, four-way 4 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:
Present embodiments provide a kind of fixed pumping rod annular preventer as shown in Figure 7, 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 9, 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.
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 8.
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 10；
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 11, 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 or embodiment 2, 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 is installed and used, 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 or embodiment 2, 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.When well head is installed and used, 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.
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 (9)
1. a sucker 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)；
Described platen (1) middle part is cavity, and 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).
null2. sucker rod annular preventer according to claim 1，It is characterized in that: described 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) terminal horizontal is provided with the first connection dish (8)，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).
3. sucker 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), and the upper and lower end surface symmetric in two ends is provided with the second seal groove (15), the 3rd seal groove (16)；
Described four-way (4) top is the four-way ring flange (31) being connected with anti-glue spraying core (2), ring flange upper end is counterbore, counterbore end face has the 4th seal groove (17), flange outer ring is the second bolt hole (22), described lower horn mouth (19) is located in upper logical (24) of four-way (4), 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 3rd seal groove (16) and fitted seal, and described second lower convexity (13) is mated with the 4th seal groove (17) and fitted seal.
null4. sucker rod annular preventer according to claim 1，It is characterized in that: described 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).
5. sucker rod annular preventer according to claim 4, 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)；
The upper logical upper end of described four-way is the cylinder body (28) being connected with anti-glue spraying core, and cylinder body (28) welds with ring flange, and 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.
6. the sucker rod annular preventer according to claim 2 or 4, it is characterised in that: the length of described hollow inwall (21) is 20 ~ 40mm, and diameter is 12 ~ 16mm.
7. sucker rod annular preventer according to claim 6, 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.
8. the sucker rod annular preventer according to claim 3 or 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).
9. sucker 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 |
|---|---|---|---|
| CN201410793563.0A CN105781471A (en) | 2014-12-20 | 2014-12-20 | Sucker rod annular blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410793563.0A CN105781471A (en) | 2014-12-20 | 2014-12-20 | Sucker rod annular blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105781471A true CN105781471A (en) | 2016-07-20 |
Family
ID=56374983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410793563.0A Withdrawn CN105781471A (en) | 2014-12-20 | 2014-12-20 | Sucker rod annular blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105781471A (en) |
-
2014
- 2014-12-20 CN CN201410793563.0A patent/CN105781471A/en not_active Withdrawn
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| C06 | Publication | ||
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Application publication date: 20160720 |