阅读说明：本技术 一种油田注水井井口防护盖 (Wellhead protective cover for oil field water injection well ) 是由 不公告发明人 于 2019-11-29 设计创作，主要内容包括：本发明一种油田注水井井口防护盖公开了一种通过盖板对井口进行防护,通过防护网对掉落的行人进行承接,避免产生安全事故的防护盖,其特征在于所述座板为方形板状结构,所述座板的两侧分别开有一组侧拉把槽,一组所述侧拉把槽由两个侧拉把槽组成,一组内的两个所述侧拉把槽分别靠近座板的侧边两端,所述座板两侧向下弯折形成连接板,所述座板中部开有圆槽,固定环固定置于座板中部的圆槽内,多个导向杆的一端等角度置于固定环内壁上,且通过螺钉相连接,所述导向杆的另一端先向下延伸一段距离,再向内弯曲,且弯曲面为弧形面,内承托环置于多个导向杆之间,所述内承托环和导向杆通过螺钉相连接,所述内承托环上表面为斜面。(The invention discloses a wellhead protective cover for an oil field water injection well, which protects the wellhead by a cover plate and receives falling pedestrians by a protective net to avoid safety accidents, and is characterized in that a seat plate is of a square plate-shaped structure, two sides of the seat plate are respectively provided with a group of side pull handle grooves, one group of side pull handle grooves consists of two side pull handle grooves, the two side pull handle grooves in one group are respectively close to two ends of the side edge of the seat plate, two sides of the seat plate are bent downwards to form a connecting plate, the middle part of the seat plate is provided with a circular groove, a fixing ring is fixedly arranged in the circular groove in the middle part of the seat plate, one ends of a plurality of guide rods are arranged on the inner wall of the fixing ring at equal angles and are connected by screws, the other ends of the guide rods extend downwards for a certain distance and then are bent inwards, the bending surface is an arc surface, and an inner bearing ring is arranged, the inner bearing ring is connected with the guide rod through a screw, and the upper surface of the inner bearing ring is an inclined plane.)

1. The utility model provides an oil field water injection well head protective cover which characterized by: the seat board is of a square plate-shaped structure, a group of side pull handle grooves are respectively formed in two sides of the seat board, the group of side pull handle grooves consists of two side pull handle grooves, the two side pull handle grooves in the group are respectively close to two ends of the side edge of the seat board, a circular groove is formed in the middle of the seat board, a fixing ring is fixedly arranged in the circular groove in the middle of the seat board, one ends of a plurality of guide rods are arranged on the inner wall of the fixing ring at equal angles and are connected through screws, an inner bearing ring is arranged among the guide rods, the inner bearing ring is connected with the guide rods through screws, a plurality of limiting grooves are formed in the upper surface of the inner bearing ring, the limiting grooves are positioned between every two adjacent guide rods, a protective net is arranged in the inner bearing ring, one ends of the plurality of connecting rods are arranged in the plurality of limiting grooves in a one-to-one correspondence mode, limiting rods are arranged at the, and the limiting plates on one sides of the two cover plates are respectively connected with the connecting plates on two sides of the seat plate through the hinged chains, two side pull handle grooves are formed in one side of each cover plate and respectively correspond to the side pull handle grooves in the cover plates, the turnover handles are arranged on the cover plates and are close to the other sides of the cover plates, the limiting plates are arranged on one sides of the cover plates, and pull grooves are formed in the limiting plates.

2. The wellhead protecting cover for the oilfield injection well according to claim 1, wherein the two sides of the seat plate are bent downward to form connecting plates, and the connecting plates can provide a mounting surface for the hinged chain.

3. The wellhead protecting cover for the oilfield injection well as defined by claim 1, wherein the other end of the guide rod extends downward for a distance and then bends inward, the curved surface is an arc-shaped surface, the support rod is easy to be clamped at the wellhead when being placed in the wellhead, and the bending device is convenient for a person to place the device in the injection well.

4. The wellhead protecting cover for water injection well in oil field as claimed in claim 1, wherein the upper surface of said inner support ring is a slope, so that the position of said position-limiting groove is inclined to the groove to form a certain position-limiting.

5. The wellhead protecting cover for the oilfield water injection well according to claim 1, wherein the protecting net is formed by connecting a plurality of concentric rings through connecting rods.

6. The wellhead protecting cover for the oilfield injection well according to claim 1, wherein the limiting rod further limits and fixes the protecting net to prevent the protecting net from being shifted under water flow impact.

7. The wellhead protecting cover for the oilfield flooding well as recited in claim 5, wherein the protecting net is fitted with an inner supporting ring, and can be disposed in the well to effectively support the falling personnel.

8. The wellhead protecting cover for the oilfield water injection well according to claim 7, wherein the protecting net can be taken down from the inner bearing ring.

9. The wellhead protecting cover for the oilfield water injection well according to claim 1, wherein the cover plate is matched with the seat plate, so that the wellhead can be sealed through the closing of the cover plate in a normal state.

Technical Field

The invention discloses a wellhead protecting cover for an oil field water injection well, relates to a protecting cover for protecting the wellhead of the oil field water injection well, and belongs to the field of petroleum engineering. In particular to a protective cover which protects a well mouth through a cover plate and accepts falling pedestrians through a protective net to avoid safety accidents.

Background

At present, the water injection well head in oil field can exceed ground certain distance usually, ensure the safety of water injection operation, the back finishes to the well head water injection simultaneously, need seal the protection to the well head, avoid personnel carelessly to fall into in the well at night, the incident takes place, it is only to block up the well head now, it is when carrying out the operation, need remove the shutoff facility again, it leaks outward to remove the back well head, at the water injection in-process, the risk that carelessly falls into in the well still can appear, lack safeguard measure in the well, and current safeguard plate structure is complicated, remove and waste time and energy, can not form monolithic stationary with the well head.

The publication number CN209621277U discloses a wellhead protection device for an oil field water injection well, which comprises a wellhead, a protective cover, a positioning plate, a limiting plate, a cover plate, a connecting plate and a screw rod, wherein the protective cover is provided with a protective cover inner hole, the wellhead is arranged in the protective cover inner hole, the lower surface of the protective cover is connected with the ground, the outer side of the positioning plate is connected with the protective cover inner hole, the positioning plate is provided with a plurality of inserted rods, the inner side of the protective cover is provided with a plurality of inserted rod grooves, the inserted rods are matched with the inserted rod grooves, the positioning plate is provided with a positioning side plate, the positioning side plate is provided with a wellhead groove, the outer side of the wellhead is matched with the wellhead groove, the outer side of the wellhead is connected with the wellhead groove, the positioning plate is symmetrically arranged at the left side and the right side of the wellhead, the upper part of the positioning, the limiting plate passes through bolted connection well head, and the protection casing diameter is greater than the well head diameter, and the protection casing is higher than the well head, and the device structure is complicated, can not directly combine with current water injection well to form the protection, lacks interior protective structure of well.

Disclosure of Invention

In order to improve the situation, the invention provides a well head protective cover for an oil field water injection well, which protects a well head through a cover plate and receives falling pedestrians through a protective net so as to avoid safety accidents.

The invention relates to a wellhead protective cover of an oil field water injection well, which is realized by the following steps: the invention relates to a wellhead protective cover of an oil field water injection well, which consists of a cover plate, a turnover handle, a limiting plate, a seat plate, guide rods, inner bearing rings, a protective net, a hinged chain, side pull handle grooves, a fixing ring and a limiting rod, wherein the seat plate is of a square plate structure, two sides of the seat plate are respectively provided with a group of side pull handle grooves, one group of side pull handle grooves consists of two side pull handle grooves, the two side pull handle grooves in one group are respectively close to two ends of the side edge of the seat plate, two sides of the seat plate are bent downwards to form the connecting plate, the middle part of the seat plate is provided with a circular groove, the fixing ring is fixedly arranged in the circular groove in the middle part of the seat plate, one ends of the guide rods are arranged on the inner wall of the fixing ring at equal angles and are connected through screws, the other ends of the guide rods extend downwards for a certain distance and then are bent inwards, the bent surfaces are arc surfaces, the inner bearing rings are arranged, the upper surface of the inner bearing ring is an inclined plane, a plurality of limiting grooves are arranged on the upper surface of the inner bearing ring, the limiting grooves are positioned between two adjacent guide rods, the protective net is arranged in the inner bearing ring and is formed by connecting a plurality of concentric rings through connecting rods, one end of each connecting rod is correspondingly arranged in the limiting grooves, a limiting rod is arranged at the bottom of the connecting rod, the limiting rod is close to one end of the connecting rod, two cover plates are arranged on the seat plate, one side of each cover plate is bent upwards to form a limiting plate, and the limit plates at one side of the two cover plates are respectively connected with the connecting plates at two sides of the seat plate through hinged chains, two side pull handle grooves are arranged at one side of the cover plate, the turnover handle is arranged on the cover plate and is close to the other side of the cover plate, the limiting plate is arranged on one side of the cover plate, and the limiting plate is provided with a pull groove.

Has the beneficial effects.

The split structure can be opened to inject water on one side, and operation safety is improved.

And secondly, a protection structure is formed in the well, so that the accident caused by carelessness can be protected.

And thirdly, the device can be combined with the existing well mouth for use, and the installation is rapid and convenient.

Drawings

Fig. 1 is a three-dimensional structure diagram of a wellhead protective cover of an oil field water injection well.

Fig. 2 is a three-dimensional structure diagram of the wellhead protective cover of the oilfield injection well according to the invention when the wellhead protective cover is unfolded.

In the attached drawings

Wherein the method comprises the following steps: the novel multifunctional seat comprises a cover plate (1), a turnover handle (2), a limiting plate (3), a seat plate (4), a guide rod (5), an inner bearing ring (6), a protective net (7), a hinged chain (8), a side pull handle groove (9), a fixing ring (10) and a limiting rod (11).

The specific implementation mode is as follows:

the invention relates to a wellhead protective cover of an oil field water injection well, which is realized by the following steps: the invention relates to a wellhead protective cover of an oil field water injection well, which comprises a cover plate (1), a turnover handle (2), a limiting plate (3), a seat plate (4), a guide rod (5), an inner supporting ring (6), a protective net (7), a hinged chain (8), side pull handle grooves (9), a fixing ring (10) and a limiting rod (11), wherein the seat plate (4) is of a square plate-shaped structure, two sides of the seat plate (4) are respectively provided with a group of side pull handle grooves (9), one group of side pull handle grooves (9) are composed of two side pull handle grooves (9), the two side pull handle grooves (9) in one group are respectively close to two ends of the side edge of the seat plate (4), two sides of the seat plate (4) are bent downwards to form connecting plates, the middle part of the seat plate (4) is provided with a circular groove, the fixing ring (10) is fixedly arranged in the circular groove in the middle part of the seat plate (4), one end of a plurality of the guide rods (5), the protective net is connected through screws, the other ends of the guide rods (5) extend downwards for a certain distance and then are bent inwards, the bent surface is an arc-shaped surface, the inner bearing ring (6) is arranged among the guide rods (5), the inner bearing ring (6) is connected with the guide rods (5) through screws, the upper surface of the inner bearing ring (6) is an inclined surface, a plurality of limiting grooves are formed in the upper surface of the inner bearing ring (6), the limiting grooves are positioned between every two adjacent guide rods (5), the protective net (7) is arranged in the inner bearing ring (6), the protective net (7) is formed by connecting a plurality of concentric circular rings through connecting rods, one ends of the connecting rods are correspondingly arranged in the limiting grooves one by one, the limiting rods (11) are arranged at the bottoms of the connecting rods, the limiting rods (11) are close to one ends of the connecting rods, the two cover plates (1) are arranged on the seat plate (4), the utility model discloses a cover plate, including apron (1), limiting plate (3), apron (1) one side is upwards buckled and is formed limiting plate (3), and two limiting plate (3) of apron (1) one side are connected through the connecting plate of articulated chain (8) and bedplate (4) both sides respectively, apron (1) one side is opened there are two side pull handle grooves (9), and respectively with apron (1) on side pull handle groove (9) corresponding, on apron (1) was arranged in upset handle (2), and was close to the opposite side of apron (1), on one side of apron (1) was arranged in to limiting plate (3), it has the kerve to open on limiting plate (3).

When the device is used, a person firstly places the device on a water injection well mouth, so that the seat plate (4) is placed on the well mouth, the fixing ring (10), the guide rod (5) and the protective net (7) are positioned in the water injection well, the cover plate (1) is closed in a normal state, the well mouth is sealed, and pedestrians are prevented from falling; when water needs to be injected, a person opens the cover plate (1) and injects water into the water injection well, and when the pedestrian falls into the water injection well carelessly, the protective net (7) between the guide rods (5) supports the pedestrian, so that safety accidents are avoided, the structure is simple, the safety cover can be combined with the existing water injection well for use, and is integrally fixed, and the safety coefficient is high;

the protective net (7) can be taken down from the inner supporting ring (6);

the design of the side pull handle groove (9) is convenient for personnel to pull the side pull handle groove (9) to carry and move;

the two sides of the seat plate (4) are bent downwards to form a connecting plate design, so that an installation surface can be provided for the hinged chain (8);

the other end of the guide rod (5) extends downwards for a certain distance and then is bent inwards, the bent surface is an arc-shaped surface, the support rod is easy to clamp a wellhead when being placed in, and the bending equipment is convenient for personnel to place the device in a water injection well;

the upper surface of the inner supporting ring (6) is designed to be an inclined surface, so that the limiting groove position is inclined to the groove to further form certain limiting, and the protective net (7) is prevented from being deflected under the impact of water flow to affect use;

the protective net (7) is designed by connecting a plurality of concentric rings through connecting rods, the strength of the protective net (7) is high, and falling personnel can be well supported;

the design of the limiting rod (11) further limits and fixes the protective net (7), so that the protective net (7) is prevented from being deviated under the impact of water flow to influence use;

the limiting plate (3) is provided with a side pull handle groove (9), so that a person can conveniently pull the side pull handle groove (9) to carry and move;

the protective net (7) is matched with the inner bearing ring (6) and can be arranged in a well to effectively bear falling personnel;

the cover plate (1) is matched with the seat plate (4), and a well mouth can be sealed through closing the cover plate (1) in a normal state;

the seat plate (4) is placed at a wellhead, and the protective net (7) is arranged in the well, so that the falling personnel can be supported, and the accidental dangerous accidents can be protected;

the well mouth is protected through the apron (1), and the pedestrian who drops is accepted through protection network (7), avoids producing the purpose of incident.

The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.