CN207905763U - A kind of novel ring flat-plate of cluster well batch brill - Google Patents

Abstract

The utility model discloses a kind of cluster wells batch to bore novel ring flat-plate, including two semi-circular rings, the both ends of semi-circular ring are respectively provided with protrusion, through-hole is threaded on protrusion, it is bolted between one group of protrusion facing each other, telescopic rod is set between another group of protrusion facing each other, the both ends of telescopic rod are separately connected two bearings, one end connecting screw of the bearing far from telescopic rod, the screw rod connected on bearing pass through the tapped through hole of face；It is additionally provided with groove on the protrusion of telescopic rod both sides；Several first fixture blocks, the second fixture block are also fixed in the bottom surface of semi-circular ring, and the first fixture block surrounds the circular radius formed and is more than the circular radius that the second fixture block surrounds formation.Adjustment surface pipe centralizer takes time and effort when the utility model is to solve the problems, such as that offshore platform one opens operation in the prior art, realizes the purpose directly adjusted to the centralizer of surface pipe by ring flat-plate.

Description

A kind of novel ring flat-plate of cluster well batch brill

Technical field

The utility model is related to offshore oil and gas drilling applications, and in particular to a kind of novel ring flat-plate of cluster well batch brill.

Background technology

Well cementation is directed to tripping in casing in well, and the construction work of cement is injected to the annular space between wellbore and casing Industry.It is an indispensable important link during being drilled well operations, it includes setting of casing and cementing.Cementing technology is more The comprehensive application technology of subject has the characteristics that systematicness, disposable and time are short.The main purpose of well cementation is protection and support Casing in oil/gas well, the stratum such as packing oil, gas and water.For offshore drilling engineering, since engineering department leads in erection Riser pipe will be hammered when pipe support and enters mud, therefore unlike Terrestrial casing, surface pipe in offshore drilling engineering It is tripping in riser pipe.Meanwhile " excellent fast " work pattern is advocated in each marine shallow water oil field domestic at present energetically, for For operation is opened on surface layer one, after work pattern is tripping in surface pipe, ring flat-plate is set on riser pipe in well head chain-wales seat, The box cupling of surface pipe is placed on ring flat-plate and is carried, dismantles surface pipe from the box cupling on ring flat-plate later, you can is adjusted The cantilever beam and derrick location of whole drilling platforms carry out the operation of next well, while using Simple cement head in well head chain-wales Surface casing cementing operation is carried out, to realize a large amount of savings of duration.Such work pattern has been current domestic offshore production well The conventional exploitation pattern bored is criticized, in such work pattern, ring flat-plate needs seat simultaneously to keep surface pipe on riser pipe, Therefore the height, ring flat-plate of ring flat-plate installation accuracy and the concentric rate of riser pipe will have a direct impact on the centralizer of surface pipe, into And rate is returned on cement mortar when seriously affecting surface pipe well cementation, if the adjustment of ring flat-plate position is bad, it is very easy to lead to surface pipe It cements the well ineffective, this is for the cluster well of offshore production platform, in some instances it may even be possible to phenomena such as causing cement mortar to alter slot occurs, Security risk is buried for the well accident of touching.In view of the above-mentioned problems, when being all present ring flat-plate in the prior art, in well head chain-wales by two The ring plate of a semicircle ring type is fixed composition ring flat-plate seat and is embraced on riser pipe, by surface pipe, then by several workers by leading Chain (bottle gouard moved by hands), which is wrapped on surface pipe, to be pulled, and so as to adjust the centralizer of surface pipe, is driven by surface pipe Ring flat-plate is in place between two parties.But this adjustment mode is needed to expend a large amount of manpower and could be completed, while it is also desirable to find at the scene The place of suitable fixed guide chain, cause inefficiency, take it is very long.

Utility model content

The purpose of this utility model is to provide a kind of cluster wells batch to bore novel ring flat-plate, marine in the prior art to solve The problem of surface pipe centralizer takes time and effort is adjusted when platform one opens operation, realizes the centralizer to surface pipe by ring flat-plate The purpose directly adjusted.

The utility model is achieved through the following technical solutions：

A kind of novel ring flat-plate of cluster well batch brill, including two semi-circular rings, the both ends of the semi-circular ring are respectively provided with edge The protrusion extended radially out is threaded through-hole on the protrusion, and the protrusion in two semi-circular rings includes difference Two groups of face are bolted between one group of protrusion facing each other, are set between another group of protrusion facing each other Telescopic rod is set, the both ends of telescopic rod are separately connected two bearings, one end connecting screw of the bearing far from telescopic rod, two axis The screw rod for holding connection is each passed through tapped through hole on the protrusion of respective face, the screw rod and the tapped through hole phase Match；Groove, the groove face telescopic rod direction, the same protrusion are additionally provided on the protrusion of telescopic rod both sides Groove in portion is coaxial with tapped through hole and is connected to；The bearing can be put into groove；The bottom surface of the semi-circular ring is also solid Fixed several first fixture blocks, the second fixture block, several first fixture blocks are uniformly distributed circumferentially, and several second fixture blocks circumferentially uniformly divide Cloth, the circle that first fixture block, the second fixture block surround formation is concentric with semi-circular ring, and the first fixture block surrounds formation Circular radius be more than the second fixture block surround formation circular radius.

The problem of surface pipe centralizer takes time and effort is adjusted when opening operation for offshore platform surface layer one in the prior art, Novel ring flat-plate is bored the utility model proposes a kind of cluster well batch, the ring flat-plate of the utility model is also including two semi-circular rings, and two A semi-circular ring collectively forms ring flat-plate for seat in riser pipe, and the both ends of semi-circular ring, which are respectively provided with, radially to be stretched out Protrusion, existing ring flat-plate are that two groups of protrusions of two semi-circular rings are facing each other and then are bolted.And this In utility model between two semi-circular rings only have one group of protrusion be bolted, another group by bearing, telescopic rod into Row connection.Specifically, on two protrusions facing each other respectively by two screw rods pass through respective tapped through hole, two Screw rod one end facing each other respectively connects a bearing, then is connected two bearings by telescopic rod.Due to two axis The presence held, therefore a screw rod can carry out opposite rotation relative to another screw rod, the rotation of two screw rods is respectively independent It does not interfere with each other, and telescopic rod plays important connection function wherein.Simultaneously as there is the presence of telescopic rod, avoid every time It needs that the utility model is thoroughly dismantled the problem of being assembled at the scene when use, when use only needs to tune up the length of telescopic rod Degree, can increase the spacing between two semi-circular rings, consequently facilitating by two semi-circular rings of the utility model from bolt One end of connection, which is opened, is inserted in outside surface pipe, avoids the dismounting and assembly at scene, greatly improves field operation efficiency. When the utility model is used, bolt is removed first, length of telescopic bar is adjusted to maximum, to by two semi-circular rings from bolt One end of connection, which is opened, is inserted in outside surface pipe, connects one group of protrusion being bolted later, then pass through pin etc. Conventional means locks the length of telescopic rod, and observation judges the situation placed in the middle of surface pipe, the degree of eccentricity in direction residing for which screw rod It is excessive, then it rotates the side screw rod while gripping other side screw rod using tools such as pipe wrench, due to screw rod and tapped through hole phase Matching, and under the action of two bearings and telescopic rod, screw rod can not be moved along own axes direction, therefore with to spiral shell The rotation of bar drives the protrusion that the screw rod is passed through to move linearly, to drive the side semi-circular ring to be moved, from And surface pipe is pushed so that surface pipe and ring flat-plate are all gradually placed in the middle stable.The utility model is by rotating two The specific orientation of semi-circular ring, can in any direction on the centralizer of surface pipe is adjusted, hence for surface layer The bias of casing any direction simply and easily can be modified and adjust, and overcome and be directed to different sides in the prior art Position needs to find guide chain different fixed points, is awkward, occurs the bad connection on well head chain-wales of certain orientation often The problem of guide chain；The utility model only needs rotation screw rod that can be adjusted simultaneously, pulls guide chain without more people, greatly drops Low manpower consumption also reduces the time needed for adjustment surface pipe centralizer, has reality outstanding compared to the prior art Matter feature and significant progress.In addition, being additionally provided with groove on the protrusion of telescopic rod both sides, the groove face is stretched Contracting bar direction, the groove on the same protrusion is coaxial with tapped through hole and is connected to；The bearing can be put into groove. Bearing can be put into groove, refer to that the internal diameter of groove is more than bearing outside diameter, setting groove is in order at two in the utility model When semi-circular ring connects, bearing, telescopic rod are subjected to storage as far as possible and hidden, reduced intermediate after two semi-circular rings connect Gap, therefore the deeper the depth of groove can be the better under conditions of meeting protrusion intensity requirement, so that two and half The connected post gap of torus is minimum.In addition, the utility model further comprise be arranged semi-circular ring bottom surface the first fixture block, second Fixture block, wherein the first fixture block is used to be fastened on the outside of riser pipe, since each first fixture block annular is uniformly distributed, when each the As soon as fixture block all fits with riser pipe lateral wall, entire ring flat-plate is also placed centrally, therefore the utility model passes through first The setting of fixture block, additionally it is possible to auxiliary judgment be carried out to the placement situation of two semi-circular rings, quickly confirmed convenient for worker placed in the middle Situation.Madial wall of second fixture block for being stuck in the annular space between riser pipe and surface pipe, being fitted in riser pipe, from And so that the entire wall thickness of riser pipe is all fallen between the first fixture block and the second fixture block, to further increase the utility model Integral strength after being connected with riser pipe and stabilization improve the utility model safety in utilization.

Preferably, first fixture block is wedge block, the center of circle of a side plane face semi-circular ring of the wedge block.It is logical The side plane for crossing the wedge block face semi-circular ring center of circle, makes the plane be resisted against the appearance of riser pipe in the operating condition Face so that between the first fixture block and riser pipe for line contacts and non-face contact, to greatly improve the utility model use When to the rotation adjustment capability of semi-circular ring, consequently facilitating flexibly adjustment cylinder direction, to more flexible adjustment surface layer The centralizer of casing.

Preferably, the arc-shaped strip of second fixture block, all second fixture blocks are concentric with semi-circular ring.Second fixture block Inside riser pipe, therefore it is set as the strip of arc so that the second fixture block can be fitted in riser pipe inner wall, pass through Second fixture block provides more stable reliable limit and blocking for riser pipe.In addition between the second fixture block and the first fixture block respectively It is preferably the wall thickness for being exactly equal to riser pipe used in the platform to surround the spacing between the circle formed also, to More improve stability.

Preferably, the both ends of the telescopic rod are connected in the inner ring of two bearings.Telescopic rod connects in this programme In bearing inner ring, therefore two screw rods are connected on the outer shroud of two bearings, improve the structural stability of the utility model.

Preferably, several the first fixture blocks being uniformly distributed circumferentially also are fixed in the semi-circular ring bottom surface.First card Block is used to be fastened on the outside of riser pipe, since each first fixture block annular is uniformly distributed, works as each first fixture block and water proof When conduit lateral wall fits, entire ring flat-plate is also just placed centrally, therefore this programme passes through the setting of the first fixture block, additionally it is possible to right The placement situation of two semi-circular rings carries out auxiliary judgment, and situation placed in the middle is quickly confirmed convenient for worker.

Preferably, the collapsing length of the telescopic rod is 2~5cm.Be telescopic rod it is most short be retracted to 2cm, longest can It is elongated to 5cm, avoids telescopic rod from shrinking too short intensity deficiency, while avoiding telescopic rod elongation is long from being not easy to store.

Preferably, the telescopic rod is electric pushrod.Preferred electric pushrod, can be simply square as telescopic rod in this programme Directly controlling it and elongate or shorten just so that the utility model has higher stability in use.

The utility model compared with prior art, has the following advantages and advantages：

1, a kind of cluster well of the utility model batch bores novel ring flat-plate, under the action of two bearings and telescopic rod, screw rod It can not be moved along own axes direction, therefore with the rotation to screw rod, the protrusion that the screw rod is passed through is driven to carry out Linear movement, to drive the side semi-circular ring to be moved, to be pushed to surface pipe so that surface pipe and ring Plate is all gradually placed in the middle to be stablized.

2, a kind of cluster well of the utility model batch bores novel ring flat-plate, by rotating the specific orientation of two semi-circular rings, Can in any direction on the centralizer of surface pipe is adjusted, hence for surface pipe any direction it is eccentric all Simply and easily it can be modified and adjust, overcome and need to find difference to guide chain in the prior art for different orientation Fixed point, be awkward, occur certain orientation often the bad connection guide chain on well head chain-wales the problem of.

3, a kind of cluster well of the utility model batch bores novel ring flat-plate, it is only necessary to which rotating screw rod can be adjusted, and be not necessarily to More people pull guide chain, greatly reduce manpower consumption, also reduce the time needed for adjustment surface pipe centralizer, compared to The prior art has substantive distinguishing features outstanding and significant progress.

4, a kind of cluster well of the utility model batch bores novel ring flat-plate, and due to there is the presence of telescopic rod, avoid makes every time Used time needs that the utility model is thoroughly dismantled the problem of being assembled at the scene, and when use only needs to tune up the length of telescopic rod, The spacing between two semi-circular rings can be increased, consequently facilitating by two semi-circular rings of the utility model from being bolted One end open be inserted in outside surface pipe, avoid scene dismounting and assembly, greatly improve field operation efficiency.

5, a kind of cluster well of the utility model batch bores novel ring flat-plate, passes through the setting of the first fixture block, additionally it is possible to two The placement situation of semi-circular ring carries out auxiliary judgment, and situation placed in the middle is quickly confirmed convenient for worker.Second fixture block for be stuck in every In annular space between water conduit and surface pipe, it is fitted in the madial wall of riser pipe, to further increase the utility model Integral strength after being connected with riser pipe and stabilization improve the security and stability that the utility model uses.

Description of the drawings

Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：

Fig. 1 is the upward view of the utility model specific embodiment；

Fig. 2 is the partial enlarged view at A in Fig. 1；

Fig. 3 is the outside schematic diagram of a semi-circular ring in the utility model specific embodiment.

Label and corresponding parts title in attached drawing：

1- semi-circular rings, 2- protrusions, 3- bolts, 4- telescopic rods, 5- bearings, 6- screw rods, 7- tapped through holes, 8- first block Block, 9- grooves, the second fixture blocks of 10-.

Specific implementation mode

To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

Embodiment 1：

A kind of cluster well as shown in Figure 1 to Figure 3 batch bores novel ring flat-plate, including two semi-circular rings 1, the semicircular ring The both ends of body 1 are respectively provided with the protrusion 2 radially stretched out, and through-hole 7, two semicircular rings are threaded on the protrusion 2 Protrusion 2 on body 1 includes two groups of face respectively, is connected by bolt 3 between one group of protrusion 2 facing each other, another Telescopic rod 4 is set between group protrusion 2 facing each other, and the both ends of telescopic rod 4 are separately connected two bearings 5, and the bearing 5 is remote One end connecting screw 6 from telescopic rod 4, the screw rod 6 connected on two bearings 4 are each passed through on the protrusion 2 of respective face Tapped through hole 7, the screw rod 6 match with the tapped through hole 7；It is additionally provided on the protrusion 2 of 4 both sides of telescopic rod recessed Slot 9,9 face telescopic rod of the groove, 4 direction, the groove 9 on the same protrusion 2 is coaxial with tapped through hole 7 and is connected to, The bearing 5 can be put into groove 9；Several first fixture blocks 8, the second fixture block 10 are also fixed in the bottom surface of the semi-circular ring 1, if Dry first fixture block 8 is uniformly distributed circumferentially, and several second fixture blocks 10 are uniformly distributed circumferentially, first fixture block 8, the second fixture block 10 surround the round concentric with semi-circular ring 1 of formation, and the first fixture block 8 surrounds the circular radius formed and is more than the second card Block 10 surrounds the circular radius formed.First fixture block 8 is wedge block, a side plane face semicircular ring of the wedge block The center of circle of body 1.The arc-shaped strip of second fixture block 10, all second fixture blocks 10 are concentric with semi-circular ring 1.It is described flexible The both ends of bar 4 are connected in the inner ring of two bearings 5.The collapsing length of the telescopic rod 4 is 2~5cm.The telescopic rod 4 be electric pushrod.

Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of cluster well batch bores novel ring flat-plate, including two semi-circular rings (1), the both ends of the semi-circular ring (1) are all provided with The protrusion (2) radially stretched out is set, is threaded through-hole (7) on the protrusion (2), on two semi-circular rings (1) Protrusion (2) include two groups of face respectively, which is characterized in that pass through bolt between one group of protrusion facing each other (2) (3) it connects, setting telescopic rod (4) between another group of protrusion facing each other (2), the both ends of telescopic rod (4) are separately connected two A bearing (5), one end connecting screw (6) of the bearing (5) far from telescopic rod (4), the screw rod connected on two bearings (5) (6) tapped through hole (7) being each passed through on the protrusion (2) of respective face, the screw rod (6) and the tapped through hole (7) phase Matching；Groove (9), groove (9) face telescopic rod (4) institute are additionally provided on the protrusion (2) of telescopic rod (4) both sides Groove (9) on direction, the same protrusion (2) is coaxial with tapped through hole (7) and is connected to, and the bearing (5) can be put into In groove (9)；Several first fixture blocks (8), the second fixture block (10), several first cards are also fixed in the bottom surface of the semi-circular ring (1) Block (8) is uniformly distributed circumferentially, and several second fixture blocks (10) are uniformly distributed circumferentially, first fixture block (8), the second fixture block (10) it is concentric with semi-circular ring (1) to surround the circle formed, and the first fixture block (8) surrounds the circular radius formed and is more than Second fixture block (10) surrounds the circular radius formed.

2. a kind of cluster well according to claim 1 batch bores novel ring flat-plate, which is characterized in that first fixture block (8) For wedge block, the center of circle of a side plane face semi-circular ring (1) of the wedge block.

3. a kind of cluster well according to claim 1 batch bores novel ring flat-plate, which is characterized in that second fixture block (10) Arc-shaped strip, all second fixture blocks (10) are concentric with semi-circular ring (1).

4. a kind of cluster well according to claim 1 batch bores novel ring flat-plate, which is characterized in that the telescopic rod (4) Both ends are connected in the inner ring of two bearings (5).

5. a kind of cluster well according to claim 1 batch bores novel ring flat-plate, which is characterized in that the telescopic rod (4) Collapsing length is 2~5cm.

6. a kind of cluster well according to claim 1 batch bores novel ring flat-plate, which is characterized in that the telescopic rod (4) is Electric pushrod.