CN212475621U - Well head ground pulley for well logging - Google Patents

Abstract

The utility model provides a well head ground pulley for well logging, which comprises a clamping piece structure, a pulley, a first supporting rod, a second supporting rod and a hook structure; the clamping piece structure comprises two clamping pieces, the two clamping pieces are arranged in parallel, one ends of the two clamping pieces are connected through a first supporting rod, the other ends of the two clamping pieces are connected through a hook structure, the two clamping pieces are symmetrically arranged on the left side and the right side of the pulley, and the axial center of the pulley is connected with the two clamping pieces through a second supporting rod; two cable guide blocks are symmetrically arranged on the upper side and the lower side of the pulley, the two cable guide blocks are fixedly connected with the clamping pieces, and the thickness of each cable guide block is larger than or equal to the gap between the pulley and the clamping piece. A well head ground pulley for well logging, ground pulley among the prior art has been solved and has appeared clamping piece and pulley in the well logging process engineering often and clip the cable between, and then lead to cable damage and extension operating time's technical problem.

Description

Well head ground pulley for well logging

Technical Field

The utility model belongs to the technical field of the well logging, especially, relate to a well head ground pulley is used in well logging.

Background

The well head ground pulley is a special well head device for well logging, perforation and well wall coring operation. The wellhead pulley is a device used for changing the running direction of a cable, and the cable is lowered into a well through the wellhead pulley and drives the wellhead pulley to rotate. The device can be matched with other wellhead special equipment (tensiometer and the like) for use, calculates the running speed and the indicating depth of the cable in the well, and can reflect the tensile force born by the cable. Ground pulley among the prior art often appears in the engineering of logging well process between clamping piece and the pulley with the cable clip, and then leads to cable damage and extension operating time to pulley among the ground pulley among the prior art and clamping piece are connected the pivot and are appeared sliding easily, and then lead to the safety risk in the construction to improve.

Disclosure of Invention

In view of the above, the utility model aims to provide a well head ground pulley for well logging, which solves the technical problems that the ground pulley in the prior art often clamps a cable between a clamping piece and a pulley in the well logging engineering, thereby causing the cable to be damaged and prolonging the operation time;

further solved among the ground pulley of prior art pulley and clamping piece connection pivot slide appears easily, and then lead to the technical problem that the safety risk in the construction improves.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a wellhead ground pulley for well logging comprises a clamping piece structure, a pulley, a first supporting rod, a second supporting rod and a hook structure;

the clamping piece structure comprises two clamping pieces, the two clamping pieces are arranged in parallel, one ends of the two clamping pieces are connected through the first supporting rod, the other ends of the two clamping pieces are connected through the hook structure, the two clamping pieces are symmetrically arranged on the left side and the right side of the pulley, and the axle center position of the pulley is connected with the two clamping pieces through the second supporting rod;

each clamping piece inboard all is equipped with two cable guide blocks, two the cable guide block symmetry sets up both sides about the pulley, two the cable guide block with the clamping piece rigid coupling, the thickness of cable guide block is more than or equal to the clearance between pulley and the clamping piece.

Furthermore, the section A of the cable guide block is of a fan-shaped structure.

Furthermore, the section B of the cable guide block is a right trapezoid.

Furthermore, be equipped with two spacing structures that can be spacing to the pulley on the second branch, two the spacing structure symmetry sets up the pulley left and right sides, two spacing structure sets up two between the clamping piece.

Furthermore, two annular grooves are formed in the second supporting rod, and each annular groove is internally provided with a limiting structure correspondingly.

Furthermore, limit structure is the jump ring.

Further, the pulley is connected with the second supporting rod through two bearings.

Further, the couple structure includes couple, couple sleeve and third branch, the couple sleeve with couple top rigid coupling, third branch is through two the through-hole of reserving on the clamping piece, the couple cover barrel casing is established the third branch is outside, the couple sleeve sets up two between the clamping piece, tip all is through a nut and one about the third branch splint locking.

Further, the hook sleeve is integrally connected with the hook.

Further, the two cable guide blocks are welded with the clamping plate.

Compared with the prior art, a well head ground pulley for well logging have following advantage:

a well head ground pulley for well logging, overall structure is compact to the operation process of use is also simple and practical, can effectively avoid the condition emergence that the ground wheel held the cable through the cable guide block on two clamping pieces, and then the effectual condition of avoiding damaging the cable. The cable damages a bit in the work progress, and last kilometer cable on the winch can not be used, has caused very big economic loss, can effectually save economic loss through the ground pulley of this well head.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a wellhead ground pulley for well logging according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a combination of a limiting structure and a second supporting rod in a wellhead ground pulley for logging according to an embodiment of the present invention;

FIG. 3 is a front view of a wellhead ground pulley for logging purposes in accordance with an embodiment of the present invention;

FIG. 4 is a side view of a wellhead ground pulley for logging purposes in accordance with an embodiment of the present invention;

FIG. 5 is a top view of a wellhead ground pulley for logging purposes in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural view of a section a of a cable guide block in a wellhead ground pulley for logging according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a section B of a cable guide block in a wellhead ground pulley for logging in an embodiment of the present invention.

Description of reference numerals:

101. a clip; 102. a first support bar; 201. a pulley; 202. a cable guide block; 203. a second support bar; 2031. an annular groove; 204. a limiting structure; 205. a bearing; 301. a third support bar; 3021. A hook sleeve; 3022. and (4) hanging hooks.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A wellhead ground pulley for well logging is shown in figure 1 and comprises a clamping piece structure, a pulley 201, a first support rod 102, a second support rod 203 and a hook structure;

the clamping piece structure comprises two clamping pieces 101, the two clamping pieces 101 are arranged in parallel, one ends of the two clamping pieces 101 are connected through a first supporting rod 102, the other ends of the two clamping pieces 101 are connected through a hook structure, the two clamping pieces 101 are symmetrically arranged on the left side and the right side of a pulley 201, and the axle center position of the pulley 201 is connected with the two clamping pieces 101 through a second supporting rod 203;

each clamping piece 101 inboard all is equipped with two cable guide blocks 202, two cable guide block 202 symmetries set up both sides about pulley 201, two cable guide blocks 202 and clamping piece 101 rigid coupling, in this embodiment, two cable guide blocks 202 and splint welding, the thickness of cable guide block 202 is more than or equal to the clearance between pulley 201 and the clamping piece 101, in this embodiment, the section A of cable guide block 202 is fan-shaped structure, the section B of cable guide block 202 is right trapezoid, the condition that can effectively avoid land wheel appearance cable through cable guide block 202 on two clamping pieces 101 takes place, and then the effectual condition of damaging the cable of having avoided. The cable damages a bit in the work progress, and last kilometer cable on the winch can not be used, has caused very big economic loss, can effectually save economic loss through the ground pulley of this well head.

Be equipped with two limit structure 204 that can be to pulley 201 spacing on second branch 203, spacing direction is the axial of second branch 203, two limit structure 204 symmetries set up in the pulley 201 left and right sides, two limit structure 204 set up between two clamping pieces 101, as shown in fig. 2, be equipped with two annular groove 2031 on the second branch 203, each annular groove 2031 is inside all to correspond and is equipped with a limit structure 204, in this embodiment, limit structure 204 is the jump ring, pulley 201 is connected with second branch 203 through two bearings 205, pulley 201 and clamping piece 101 connection pivot among the ground pulley of having solved among the prior art through two limit structure slide easily appears, and then lead to the technical problem that the safety risk in the construction improves, and then can effectively avoid pulley 201 to appear the not hard up condition appearance.

The couple structure includes couple 3022, couple sleeve 3021 and third branch 301, couple sleeve 3021 and couple 3022 top rigid coupling, and third branch 301 is through the through-hole of reserving on two clamping pieces 101, and the couple sleeve 3021 cover is established at third branch 301 outsidely, and couple sleeve 3021 sets up between two clamping pieces 101, and the tip all locks through a nut and a splint about third branch 301, and in this embodiment, couple sleeve 3021 is connected with couple 3022 integral type.

Working mode of the example

In operation, the first strut 102 is connected to other equipment, a string is tied at the wellhead location, and the ground sheave is connected to the string at the wellhead location via a hook structure.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a well head ground pulley for well logging which characterized in that: comprises a clamping piece structure, a pulley (201), a first supporting rod (102), a second supporting rod (203) and a hook structure;

the clamping piece structure comprises two clamping pieces (101), the two clamping pieces (101) are arranged in parallel, one ends of the two clamping pieces (101) are connected through the first supporting rod (102), the other ends of the two clamping pieces (101) are connected through the hook structure, the two clamping pieces (101) are symmetrically arranged on the left side and the right side of the pulley (201), and the axle center position of the pulley (201) is connected with the two clamping pieces (101) through the second supporting rod (203);

each clamping piece (101) inboard all is equipped with two cable guide blocks (202), two cable guide block (202) symmetry sets up both sides about pulley (201), two cable guide block (202) with clamping piece (101) rigid coupling, the thickness of cable guide block (202) is more than or equal to the clearance between pulley (201) and clamping piece (101).

2. A wellhead ground pulley for logging as defined in claim 1, wherein: the section A of the cable guide block (202) is of a fan-shaped structure.

3. A wellhead ground pulley for logging as defined in claim 1, wherein: the section B of the cable guide block (202) is a right trapezoid.

4. A wellhead ground pulley for logging as defined in any one of claims 1-3, wherein: be equipped with two spacing structure (204) that can be spacing to pulley (201) on second branch (203), two spacing structure (204) symmetry sets up pulley (201) left and right sides, two spacing structure (204) set up two between clamping piece (101).

5. A wellhead ground pulley for logging as defined in claim 4, wherein: two annular grooves (2031) are formed in the second supporting rod (203), and each annular groove (2031) is internally provided with a limiting structure (204) correspondingly.

6. A wellhead ground pulley for logging as defined in claim 5, wherein: the limiting structure (204) is a clamp spring.

7. A wellhead ground pulley for logging as defined in claim 4, wherein: the pulley (201) is connected with the second support rod (203) through two bearings (205).

8. A wellhead ground pulley for logging purposes according to any of claims 5 to 7, wherein: couple structure includes couple (3022), couple sleeve (3021) and third branch (301), couple sleeve (3021) with couple (3022) top rigid coupling, third branch (301) are through two the through-hole of reserving on clamping piece (101), couple sleeve (3021) cover is established third branch (301) are outside, couple sleeve (3021) set up two between clamping piece (101), the tip all locks through a nut and a splint about third branch (301).

9. A wellhead ground pulley for logging as defined in claim 8, wherein: the hook sleeve (3021) is integrally connected with the hook (3022).

10. A wellhead ground pulley for logging as defined in claim 8, wherein: two cable guide blocks (202) are welded to the clamping plate.

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