CN212583644U

CN212583644U - Centering positioner device for casing of highly deviated well

Info

Publication number: CN212583644U
Application number: CN202021420689.0U
Authority: CN
Inventors: 万宏辉; 李崇芹; 张雷
Original assignee: Jiangsu Saiwei Petroleum Technology Co ltd
Current assignee: Jiangsu Saiwei Petroleum Technology Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-02-23
Anticipated expiration: 2030-07-17

Abstract

The application relates to a high-inclination well casing centering positioner device which comprises an inner pipe through which an oil supply rod penetrates, wherein a flexible centralizer is fixed on the inner pipe and comprises an arc-shaped elastic sheet and mounting rings positioned at two ends of the arc-shaped elastic sheet, fastening frames are integrally formed at two ends of the arc-shaped elastic sheet and positioned on one side of the convex surface of the arc-shaped elastic sheet; follow the concave station has been seted up to a week of collar inner wall, the inner wall of collar seted up with inner tube threaded connection's installation screw thread, the installation screw thread is located the top of concave station, the outer peripheral face integrated into one piece of collar has the flange, the rectangular hole has been seted up on the flange, the rectangular hole runs through the both sides of collar, the fastening frame passes the rectangular hole is located the outside of collar, be provided with the locking on the flange the locking mechanism of fastening frame. This application has the effect of being convenient for change arc shell fragment, the rightting effect of guaranteeing the centralizer.

Description

Centering positioner device for casing of highly deviated well

Technical Field

The application relates to the field of petroleum drilling auxiliary tools, in particular to a centering positioner device for a casing of a highly-deviated well.

Background

The centering locator is also called a centralizer, the centering of the casing is required to be kept in the casing running process, the centralizer is generally added into a tubular column, the rigid rotational flow centralizer not only has the function of keeping the casing well centered, but also can provide a good annular flow channel for cement paste in the cement injection displacement process.

Chinese patent No. CN210659975U discloses a combined centralizer for sucker rod convenient to disassemble and assemble, which includes an inner tube for a sucker rod to pass through, a positioning ring is disposed on the top of the outer wall of the inner tube, a rigid centralizer and a flexible centralizer are sequentially sleeved below the positioning ring outside the inner tube, the top of the rigid centralizer is tightly pressed against the bottom of the positioning ring, a plurality of spiral centralizing ribs are disposed on the outer wall of the rigid centralizer, a plurality of balls are embedded on each centralizing rib, the flexible centralizer includes a top ring plate, a bottom ring plate and a plurality of arc-shaped elastic pieces fixed between the top ring plate and the bottom ring plate, the top ring plate of the flexible centralizer is tightly pressed against the bottom of the rigid centralizer, a connecting thread section is disposed at the bottom of the outer wall of the inner tube, and a connecting thread section matched with the connecting thread section is disposed on the inner wall of the bottom ring plate of the flexible centralizer.

To the correlation technique among the above-mentioned, the inventor thinks that there is the arc shell fragment after using for a long time, can produce the bending of warping, and then can't play the effect of righting, needs to change above-mentioned whole flexible centralizer, changes inconvenient and the defect that causes the waste.

SUMMERY OF THE UTILITY MODEL

In order to facilitate changing the arc-shaped elastic sheet, guarantee the righting effect of centralizer, this application provides a highly deviated well casing locator device placed in middle.

The application provides a pair of locator device placed in middle of highly deviated well casing pipe adopts following technical scheme:

a high-inclination well casing centering locator device comprises an inner pipe through which an oil supply rod penetrates, wherein a flexible centralizer is fixed on the inner pipe and comprises an arc-shaped elastic sheet and mounting rings positioned at two ends of the arc-shaped elastic sheet, fastening frames are integrally formed at two ends of the arc-shaped elastic sheet and positioned on one side of the convex surface of the arc-shaped elastic sheet; follow the concave station has been seted up to a week of collar inner wall, the inner wall of collar seted up with inner tube threaded connection's installation screw thread, the installation screw thread is located the top of concave station, the outer peripheral face integrated into one piece of collar has the flange, the rectangular hole has been seted up on the flange, the rectangular hole runs through the both sides of collar, the fastening frame passes the rectangular hole is located the outside of collar, be provided with the locking on the flange the locking mechanism of fastening frame.

Through adopting above-mentioned technical scheme, when one of them arc shell fragment takes place to damage in flexible centralizer, can dismantle the arc shell fragment that damages from the collar, and then can change the arc shell fragment that damages alone to need not to change whole flexible centralizer, therefore can reduce extravagant cost.

Preferably, locking mechanism includes the jam plate, the jam plate with the fastening frame cooperatees, the rigid coupling has the fixed plate on the flange, the fixed plate is located the top of rectangular hole, wear to be equipped with the carriage release lever in the fixed plate, the one end of carriage release lever with the side rigid coupling of jam plate, the other end are connected with the movable plate, the joint hole has been seted up on the fixed plate, the joint hole runs through the both sides wall of fixed plate, the movable plate is close to the rigid coupling has the trip on the side of fixed plate one side, the trip with joint hole joint.

Through adopting above-mentioned technical scheme, when changing the arc shell fragment, break away from the trip from the joint hole, then will move the board to the one side of keeping away from the fastening frame for the jam plate breaks away from the fastening frame, and then can realize the dismantlement or the locking of arc shell fragment.

Preferably, the moving plate is provided with a through hole, and a connecting bolt is connected with the end face of the moving rod through the through hole in a threaded manner.

Through adopting above-mentioned technical scheme, when installing the jam plate, can wear to locate the fixed plate with the carriage release lever earlier, recycle connecting bolt with movable plate bolted connection on the carriage release lever, and then the installer of being convenient for installs the jam plate.

Preferably, a counter bore is formed in the side face, close to one side of the moving rod, of the moving plate, the axis of the counter bore is collinear with the axis of the through hole, and the end portion of the moving rod sinks in the counter bore.

Through adopting above-mentioned technical scheme, when installing movable plate and carriage release lever, can sink in the counter bore with the tip of carriage release lever earlier, and then the connecting bolt of being convenient for is fixed the carriage release lever.

Preferably, the number of the clamping hooks is two, and the two clamping hooks respectively abut against two sides of the clamping hole.

Through adopting above-mentioned technical scheme, utilize two trips all to carry out the joint to the both sides that the joint connects the hole, and then can improve the steadiness between movable plate and the fixed plate.

Preferably, the length of the locking plate is greater than the distance between the open ends of the two ends of the fastening frame.

Through adopting above-mentioned technical scheme, set up the length of jam plate into being greater than the interval between the open end of fastening frame both ends, can be so that the jam plate runs through the both sides of fastening frame, be favorable to increaseing the locking area between jam plate and the fastening frame, reduce the possibility that fastening frame breaks away from the jam plate.

Preferably, the end face of the hook, which is far away from one end of the moving plate, is extended with a projection integrally formed with the hook.

Through adopting above-mentioned technical scheme, when arc shell fragment was dismantled to needs, operating personnel can promote the lug and break away from the joint hole with the trip, and then the operating personnel of being convenient for operates.

Preferably, the number of the moving rods is two, and the two moving rods respectively penetrate through two ends of the fixed plate.

Through adopting above-mentioned technical scheme, utilize two carriage bars, can hinder movable plate and jam plate to take place the rotatory possibility, be favorable to guaranteeing that the jam plate gets into in the fastening frame smoothly.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the fastening frames at the two ends of the arc-shaped elastic sheet, when one arc-shaped elastic sheet in the flexible centralizer is damaged, the damaged arc-shaped elastic sheet can be detached from the mounting ring, and the damaged arc-shaped elastic sheet can be independently replaced, so that the whole flexible centralizer does not need to be replaced, and the waste cost can be reduced;

by arranging the locking mechanism, when the arc-shaped elastic sheet is replaced, the clamping hook is separated from the clamping hole, and then the moving plate is moved to one side far away from the fastening frame, so that the locking plate is separated from the fastening frame, and the arc-shaped elastic sheet can be detached or locked;

through setting up the lug, when the arc shell fragment was dismantled to needs, operating personnel can promote the lug and break away from the joint hole with the trip, and then the operating personnel of being convenient for operates.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a centering fixture device according to an embodiment of the present application.

Fig. 2 is a schematic structural view of an arc-shaped elastic sheet according to an embodiment of the present application.

FIG. 3 is a schematic view of the structure of a mounting ring according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3, mainly illustrating the configuration of the locking mechanism.

Fig. 5 mainly illustrates the configuration of the moving plate in fig. 3.

Description of reference numerals: 1. an inner tube; 2. a flexible centralizer; 21. an arc-shaped elastic sheet; 211. fastening the frame; 22. a mounting ring; 221. a concave platform; 222. installing threads; 223. a convex plate; 224. a rectangular hole; 3. a locking mechanism; 31. a locking plate; 32. a fixing plate; 321. a clamping hole; 33. a travel bar; 34. moving the plate; 3401. a connecting bolt; 341. a through hole; 342. a counter bore; 35. a hook is clamped; 351. and (4) a bump.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a highly deviated well casing centering locator device. Referring to fig. 1, a locator device placed in middle of highly deviated well casing pipe includes inner tube 1 and flexible centralizer 2, and flexible centralizer 2 is fixed on the lateral wall of inner tube 1, and flexible centralizer 2 includes arc-shaped elastic piece 21 and collar 22, and collar 22 is two, and arc-shaped elastic piece 21 is fixed in between two collars 22, and arc-shaped elastic piece 21 is a plurality of and along a week evenly distributed of collar 22, and the convex surface of arc-shaped elastic piece 21 is located the one side of keeping away from inner tube 1.

As shown in fig. 2, the two ends of the arc-shaped elastic piece 21 are integrally formed with a fastening frame 211, the fastening frame 211 is a hollow cuboid with openings at the two ends, the opening direction of the fastening frame 211 is the same as the length direction of the arc-shaped elastic piece 21, and the fastening frame 211 is located on one side of the arc-shaped elastic piece 21 close to the convex surface.

As shown in fig. 3, the inner wall of the mounting ring 22 is provided with a concave platform 221, the concave platform 221 is communicated with the end surface of one end of the mounting ring 22, the height of the concave platform 221 is half of the height of the mounting ring 22, the inner wall of the mounting ring 22 is provided with a mounting thread 222, the mounting thread 222 is positioned above the concave platform 221, and the mounting ring 22 can be screwed on the inner pipe 1 by using the mounting thread 222. The integrated into one piece has the flange 223 on the lateral wall of collar 22, and the flange 223 is rectangular shape board and both ends and the terminal surface coplane at collar 22 both ends, and the flange 223 is a plurality ofly and along a week evenly distributed of collar 22. Rectangular holes 224 are formed in the convex plate 223, the rectangular holes 224 are close to the end face of one end of the mounting ring 22, the rectangular holes 224 penetrate through two sides of the mounting ring 22, the rectangular holes 224 are multiple and are evenly distributed along the circumference of the mounting ring 22, and the fastening frame 211 penetrates through the rectangular holes 224 and is located on the outer side of the mounting ring 22.

As shown in fig. 3 and 4, the locking mechanism 3 is disposed on the convex plate 223, and the locking mechanism 3 includes a locking plate 31, a fixed plate 32, a moving rod 33, a moving plate 34, and a hook 35. Fixed plate 32 is the bar form, and the fixed plate 32 rigid coupling is on the lateral wall of flange 223, and fixed plate 32 is located the top of rectangular hole 224, and the length direction of fixed plate 32 is perpendicular with the axis direction of collar 22, and joint hole 321 has been seted up to the intermediate position of fixed plate 32, and joint hole 321 is rectangular form and length direction and fixed plate 32's length direction unanimity, and joint hole 321 runs through the both sides of fixed plate 32. The number of the moving rods 33 is two, the two moving rods 33 are both disposed through the fixed plate 32 and slide along the axial direction of the mounting ring 22, two ends of the moving rods 33 are respectively located at two sides of the fixed plate 32, and the two moving rods 33 are located at two ends of the fixed plate 32. The locking plate 31 is a rectangular thin plate, the locking plate 31 is inserted into the rectangular frame, and the side edge of the locking plate 31 close to the moving rod 33 is fixedly connected with the end face of the moving rod 33.

As shown in fig. 5, the moving plate 34 is a strip-shaped plate, the moving plate 34 is parallel to the fixed plate 32 and is located above the fixed plate 32, through holes 341 are opened near two ends of the moving plate 34, and the axes of the two through holes 341 are respectively collinear with the axes of the two moving rods 33. Two counter bores 342 are formed in the side wall of the moving plate 34 close to one side of the moving rod 33, the axes of the two counter bores 342 are collinear with the axes of the two through holes 341, the ends of the two moving rods 33 sink into the two counter bores 342, and threaded holes (not shown) are formed in the end faces of the two moving rods 33. Two connecting bolts 3401 are arranged on one side of the moving plate 34 away from the moving rod 33, and the two connecting bolts 3401 respectively penetrate through the two through holes 341 to be in threaded connection with the threaded holes. When the locking plate 31 is installed, the moving rod 33 can be firstly inserted into the fixed plate 32, and then the connecting bolt 3401 is used for connecting the moving plate 34 to the moving rod 33, so that the installer can install the locking plate 31 conveniently.

As shown in fig. 5, the hooks 35 and the side surface of the moving plate 34 close to the fixed plate 32 are integrally formed, two hooks 35 are symmetrically disposed on two sides of the middle position of the moving plate 34, the hooks 35 are connected with the connecting holes 321 in a clamping manner, a protrusion 351 is integrally formed at one end of the hooks 35 far away from the moving plate 34, and the protrusion 351 is located below the connecting holes 321. When changing arc shell fragment 21, promote lug 351 to the intermediate position of joint hole 321 for trip 35 breaks away from in the joint hole 321, then moves movable plate 34 to the one side of keeping away from fastening frame 211, makes jam plate 31 break away from fastening frame 211, and then can realize dismantling or locking of arc shell fragment 21.

The implementation principle of the locator device placed in middle of highly deviated well casing pipe of this application embodiment does: when one of the arc-shaped elastic sheets 21 in the flexible centralizer 2 is damaged, the damaged arc-shaped elastic sheet 21 can be detached from the mounting ring 22 by using the locking mechanism 3, and then the damaged arc-shaped elastic sheet 21 can be replaced independently, so that the whole flexible centralizer 2 does not need to be replaced, and the waste cost can be reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a highly deviated well casing locator device placed in middle, includes inner tube (1) that the fuel rod passed, be fixed with flexible centralizer (2) on inner tube (1), flexible centralizer (2) include arc shell fragment (21) and be located collar (22) at arc shell fragment (21) both ends, its characterized in that: the two ends of the arc-shaped elastic sheet (21) are integrally formed with fastening frames (211), and the fastening frames (211) are positioned on one side of the convex surface of the arc-shaped elastic sheet (21); follow concave station (221) have been seted up to a week of installing ring (22) inner wall, the inner wall of installing ring (22) seted up with inner tube (1) threaded connection's installation screw thread (222), installation screw thread (222) are located the top of concave station (221), the outer peripheral face integrated into one piece of installing ring (22) has flange (223), rectangular hole (224) have been seted up on flange (223), rectangular hole (224) run through the both sides of installing ring (22), fastening frame (211) pass rectangular hole (224) are located the outside of installing ring (22), be provided with the locking on flange (223) fastening frame (211) locking mechanism (3).

2. A highly deviated well casing centraliser device according to claim 1, wherein: locking mechanism (3) are including jam plate (31), jam plate (31) with fastening frame (211) cooperate, the rigid coupling has fixed plate (32) on flange (223), fixed plate (32) are located the top of rectangular hole (224), wear to be equipped with carriage release lever (33) in fixed plate (32), the one end of carriage release lever (33) with the side rigid coupling of jam plate (31), the other end are connected with movable plate (34), joint hole (321) have been seted up on fixed plate (32), joint hole (321) run through the both sides wall of fixed plate (32), movable plate (34) are close to the rigid coupling has trip (35) on the side of fixed plate (32) one side, trip (35) with joint hole (321) joint.

3. A highly deviated well casing centraliser device according to claim 2, wherein: the moving plate (34) is provided with a through hole (341), and a connecting bolt (3401) is connected with the end face of the moving rod (33) through the through hole (341) in a threaded manner.

4. A highly deviated well casing centraliser device according to claim 3, wherein: the side surface of the moving plate (34) close to one side of the moving rod (33) is provided with a counter bore (342), the axis of the counter bore (342) is collinear with the axis of the through hole (341), and the end part of the moving rod (33) sinks in the counter bore (342).

5. A highly deviated well casing centraliser device according to claim 2, wherein: the number of the clamping hooks (35) is two, and the two clamping hooks (35) respectively abut against the two sides of the clamping hole (321).

6. A highly deviated well casing centraliser device according to claim 2, wherein: the length of the locking plate (31) is larger than the distance between the opening ends of the two ends of the fastening frame (211).

7. A highly deviated well casing centraliser device according to claim 2, wherein: the end face of one end, far away from the moving plate (34), of the clamping hook (35) is provided with a protruding block (351) integrally formed with the clamping hook (35) in an extending mode.

8. A highly deviated well casing centraliser device according to claim 2, wherein: the number of the moving rods (33) is two, and the two moving rods (33) respectively penetrate through two ends of the fixing plate (32).