CN212927823U - Well head deviation measurement auxiliary alignment device - Google Patents

Abstract

The utility model discloses a well head deviation measurement assists alignment device, reaches the purpose that shortens the time of well head centering operation, improves well head centering operating efficiency, it includes a pair of snap ring by axle swing joint, the snap ring middle part sets up the through-hole with polished rod clearance fit, the snap ring outer fringe sets up plane I, mark an auxiliary line I parallel with the central line of polished rod on the plane I, the plane that comprises auxiliary line I and the central line of polished rod is perpendicular to plane I; the positioning block is provided with a conical groove matched with the pendant, and the side surface of the positioning block is marked with a longitudinal center line as an auxiliary line II; the plane I and the side face are located on the same longitudinal plane.

Description

Well head deviation measurement auxiliary alignment device

Technical Field

The utility model relates to a well head centering technical field specifically relates to a supplementary aligning device of well head deviation measurement.

Background

The centering degree of adjustment well head for polished rod and horse head centering have important effect to the safe high-efficient operation of beam-pumping unit, if the deviation between polished rod and the horse head surpassed the scope of regulation, a series of problems such as polished rod strain, well head seepage will appear, influence the normal production of rod-pumped well, consequently, the staff can regularly carry out the well head to rod-pumped well and tuningout the operation.

The operation process comprises a link for measuring wellhead deviation, a worker adjusts the position of a walking beam according to the deviation value, in the specific operation process, a high-altitude worker puts down a pendant from the middle of a horse head, a ground worker measures the distance between the central line of a polish rod and the central line of the pendant to obtain the deviation value, under the normal condition, the pendant can be quickly stabilized under the self gravity, the worker can obtain the deviation value by measuring the distance between a tip at the lower part of the pendant and the polish rod, but in the actual measurement process, influence factors exist, such as lack of a tool for positioning the pendant, operation in windy weather, the shaking of the pendant is easy to cause deviation, in addition, the determination of the central line of the polish rod is also judged by the worker through naked eyes, the problem of large error exists, and multiple measurements are needed in the operation process, and (5) adjusting for multiple times.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an alignment apparatus is assisted in wellhead offset measurement utilizes this supplementary alignment apparatus to accurately measure wellhead offset numerical value under the prerequisite that compresses tightly the pendant, reaches the time that shortens wellhead centering operation, improves wellhead centering operating efficiency's purpose.

The technical scheme is as follows: a well head deviation measurement auxiliary alignment device is characterized in that: the clamp comprises a pair of clamping rings movably connected by a shaft, wherein the middle parts of the clamping rings are provided with through holes capable of being in clearance fit with a polished rod, the outer edges of the clamping rings are provided with planes I, an auxiliary line I parallel to the central line of the polished rod is marked on the planes I, and the plane formed by the auxiliary line I and the central line of the polished rod is vertical to the planes I; the positioning block is provided with a conical groove which can be matched with a pendant, and the side surface of the positioning block is marked with a longitudinal center line which is used as an auxiliary line II; the plane I and the side surface are located on the same longitudinal plane.

Furthermore, an elastic pressing sheet is fastened on the upper surface of the clamping ring through a screw, and the elastic pressing sheet can be pressed on the upper surface of the pendant.

Furthermore, the clamping ring is attracted by the magnetic block.

Has the advantages that: use this utility model to measure the well head deviation, it is accurate quick to have the measurement, measures the advantage that numerical error is little, can avoid the drawback of staff's adjustment walking beam position repeatedly because of measuring error arouses to effectively shorten the time that whole operation consumes, improve the efficiency of well head centering operation.

Drawings

FIG. 1 is a schematic elevation structure of the utility model;

fig. 2 is a schematic plan view of an embodiment of the present invention.

Description of reference numerals:

1. elastic tabletting; 2. a screw; 3. a magnetic block; 4. a snap ring; 5. a through hole; 6. a shaft; 7. positioning blocks; 8. a pendant; 9. hanging wires; 10. a polish rod; 11. a tapered groove; l1, auxiliary line I; l2, auxiliary line II; alpha, plane I; beta, side face.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying fig. 1 to 2, but the invention can be implemented in many different ways as defined and covered by the claims.

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed, unless otherwise specified, and all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

According to the technical problems recorded in the background technology, after a high-altitude worker puts down a pendant 8 through a suspension wire 9, the ground worker adjusts the position of a walking beam according to the measured numerical value between the central lines of the pendant 8 and a polished rod 10, but the problems that the pendant 8 shakes, the central line of the polished rod 10 is not easy to determine and the like exist in actual measurement, data is inaccurate, and the defect that the worker needs to repeatedly measure and repeatedly adjust exists.

With reference to fig. 1 to 2, the present invention provides an alignment assisting device for wellhead offset measurement, which includes a pair of snap rings 4 movably connected by a shaft 6, a through hole 5 capable of being in clearance fit with a polished rod 10 is disposed in the middle of each snap ring 4, a plane ia surface is disposed on the outer edge of each snap ring 4, an assisting line I L1 parallel to the central line of the polished rod 10 is marked on the plane ia surface, and the plane formed by the assisting line I L1 and the central line of the polished rod 10 is perpendicular to the plane ia surface; the positioning device also comprises a positioning block 7 with a square cross section, wherein a tapered groove 11 capable of being matched with the pendant 8 is formed in the middle of the positioning block 7, and the longitudinal center line of the beta surface mark on the side surface of the positioning block 7 is used as an auxiliary line II L2; the plane lala face and the side face β face are located on the same longitudinal plane.

According to the structure of the above embodiment, it can be found that the utility model utilizes the snap ring 4 to cooperate with the polished rod 10 to draw out the central line of the polished rod 10, namely the auxiliary line I L1, and then utilizes the positioning block 7 to cooperate with the pendant 8 to draw out the central line of the pendant 8, namely the auxiliary line II L2, because the auxiliary line I L1 and the auxiliary line II L2 are in the same longitudinal plane, the value L obtained by measuring the distance between the auxiliary line I L1 and the auxiliary line II L2 is the wellhead offset value.

Specifically, on one hand, because the matching between the cone and the tapered groove has the characteristic of reducing the radial clearance, the pendant 8 is a cone, after the pendant 8 is tightly attached to the tapered groove 11 of the positioning block 7, the longitudinal centerline auxiliary line II L2 of the side surface β surface of the positioning block 7 is the center line of the pendant 8 led out, on the other hand, the through hole 5 of the snap ring 4 is in clearance fit with the polished rod 10, the auxiliary line I L1 on the plane I α surface of the outer edge of the snap ring 4 is parallel to the center line of the polished rod 10, when the plane formed by the auxiliary line I L1 and the center line of the polished rod 10 is perpendicular to the plane I α surface, the auxiliary line I L1 is the center line of the polished rod 10 led out, the distance L between the auxiliary line I L1 and the auxiliary line II L2 is the distance between the center line of the pendant 8 and the center line of the polished rod 10, and a worker can quickly and accurately measure the wellhead deviation number by only tightly attaching the measuring ruler to The value L.

With reference to fig. 1 to 2, an elastic pressing sheet 1 is fastened on the upper surface of the snap ring 4 through a screw 2, and the elastic pressing sheet 1 can be pressed on the upper surface of the pendant 8.

The utility model discloses an in the above-mentioned embodiment, utilize elasticity preforming 1 to compress tightly pendant 8 and can reach the purpose of stabilizing pendant 8, the staff's of being convenient for measurement deviation numerical value.

With reference to fig. 1 and 2, the snap ring 4 is attracted by the magnetic block 3.

The utility model discloses an in the above-mentioned embodiment, for the convenience of staff's dismouting this utility model, snap ring 4 is by 3 attractions of magnetic path, only needs the staff to establish 4 covers of snap ring on polished rod 10 in the operation process for 3 attractions of magnetic path snap ring 4's opening can, dismantle the in-process suction that only need overcome magnetic path 3 and separately can take off snap ring 4.

To sum up, this utility model creatively utilizes the cone and the characteristic that the bell jar cooperation has, utilizes the characteristic that clearance fit has between the hole axle simultaneously, draws forth two central lines of cone (pendant) and member (polished rod) respectively on an easy measuring plane, for prior art, has the quick accurate advantage of measurement, can effectively shorten the time of well head centering operation, improves well head centering operating efficiency.

Claims (3)

1. A well head deviation measurement auxiliary alignment device is characterized in that: the clamp comprises a pair of clamping rings movably connected by a shaft, wherein the middle parts of the clamping rings are provided with through holes capable of being in clearance fit with a polished rod, the outer edges of the clamping rings are provided with planes I, an auxiliary line I parallel to the central line of the polished rod is marked on the planes I, and the plane formed by the auxiliary line I and the central line of the polished rod is vertical to the planes I;

the positioning block is provided with a conical groove which can be matched with a pendant, and the side surface of the positioning block is marked with a longitudinal center line which is used as an auxiliary line II;

the plane I and the side surface are located on the same longitudinal plane.

2. The wellhead offset measurement assisted alignment device of claim 1, wherein: an elastic pressing sheet is fastened on the upper surface of the clamping ring through a screw, and the elastic pressing sheet can be pressed with the upper surface of the pendant.

3. A wellhead offset measurement assisted alignment device as claimed in claim 1 or claim 2, wherein: the clamping ring is attracted by the magnetic block.

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