CN211477953U

CN211477953U - Measuring device for low-density drilling fluid

Info

Publication number: CN211477953U
Application number: CN202020201534.1U
Authority: CN
Inventors: 白海鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-09-11
Anticipated expiration: 2030-02-24

Abstract

The utility model discloses a measuring device of low density drilling fluid, including the drilling fluid densimeter main part, the drilling fluid densimeter main part includes that lever main scale, slip cap establish the number of swimming on the lever main scale and fix drilling fluid cup and the equilibrium post at lever main scale both ends respectively, the below of lever main scale is equipped with the support, and one side top fixedly connected with support arm of support, and the recess that front side and rear side were the opening setting is seted up at the top of support, and the recess internal rotation installs the pivot, the bottom fixedly connected with round seat of pivot. The utility model relates to a rationally, the frictional force of junction when can effectively reducing the lever main scale and place, through the frictional force influence that reduces the junction in order to improve the measurement precision, be convenient for carry out the balance calibration to the lever main scale fast, and can the position behind horizontal rotation adjustment lever main scale and the lock solid horizontal adjustment, guarantee measuring stability, be favorable to the use.

Description

Measuring device for low-density drilling fluid

Technical Field

The utility model relates to a drilling fluid measuring equipment technical field especially relates to measuring device of low density drilling fluid.

Background

The drilling fluid densimeter is a special instrument for measuring the density of the drilling fluid, the hydrostatic column pressure of the drilling fluid in a shaft can be adjusted through the change of the density of the drilling fluid so as to balance the pore pressure of a stratum, and leakage and drilling speed reduction can occur if the density is too high; when the density is too low, well kick and even blowout are easy to occur, and the well collapse well diameter shrinkage and the rock carrying capacity are reduced, so that strict requirements are imposed on the density measurement of the drilling fluid; the No. CN203758869U discloses a drilling fluid densimeter with differential weights, which comprises a drilling fluid cup, a knife edge, a knife bearing, a supporting arm, a floating weight, a lever, a balance column and a base, wherein the upper end of the base is connected with the lever through the supporting arm and the knife bearing, the left end part of the lever is connected with the drilling fluid cup, the right end part of the lever is connected with the balance column, the lever is provided with the floating weight which can move, the balance column is provided with a cavity for containing lead particles, the bottom of the balance column is provided with a movable switch, the top of the drilling fluid cup is provided with a cup cover, and the cup cover is provided with a calibration differential weight groove. The method is simple to operate, and meanwhile, the procedure of detecting the drilling fluid densimeter on site is simplified.

The above patents still have some disadvantages that it is inconvenient to calibrate the drilling fluid densimeter quickly and accurately when recalibration is needed due to factors such as abrasion after long-term use, and it is inconvenient to stably adjust the lever and reduce the friction force at the connection of the lever and the base when measuring,

the drilling fluid density measuring device comprises a base, a lever, a balance weight, a base, a measuring device and a measuring device, wherein the base is provided with a plurality of lead particles, the balance weight is matched with the weight of the lead particles, the base is provided with a plurality of lead particles, the lead particles are arranged on the.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a measuring device for low-density drilling fluid.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the measuring device for the low-density drilling fluid comprises a drilling fluid densimeter main body, wherein the drilling fluid densimeter main body comprises a lever main ruler, a sliding block sleeved on the lever main ruler, a drilling fluid cup and a balance column which are respectively fixed at two ends of the lever main ruler, a support is arranged below the lever main ruler, a supporting arm is fixedly connected to the top of one side of the support, a groove with openings at the front side and the rear side is arranged at the top of the support, a rotating shaft is rotatably arranged in the groove, a round seat is fixedly connected to the bottom end of the rotating shaft, the outer side of the round seat is movably contacted with the inner wall of the groove, the round seat is fastened with the support through threads, the top end of the rotating shaft extends to the upper side of the support and is fixedly connected with a cross rod, V-shaped blocks are fixedly connected to two sides of the top of the cross rod, the lever main ruler is positioned between the two V-shaped blocks, round shafts, the circle axle is located between the three abrasionproof ball that corresponds, the outside rolling contact of abrasionproof ball and the circle axle that corresponds, the top of horizontal pole is equipped with the U-shaped calibration balancing weight, and all nestification has two first balls on the front inner wall of U-shaped calibration balancing weight, rear inner wall and the top inner wall, two first balls that are located on two first balls on the U-shaped calibration balancing weight front inner wall and the rear inner wall respectively with the front side and the rear side rolling contact of lever main scale, the top rolling contact of two first balls that are located on U-shaped calibration balancing weight top inner wall and lever main scale, U-shaped calibration balancing weight and lever main scale screw-thread fastening.

Preferably, one side of the round seat is movably contacted with a first T-shaped fastening screw, a first threaded hole is formed in the inner wall of one side of the groove, and the first threaded hole is in threaded connection with the first T-shaped fastening screw.

Preferably, the front side of the lever main ruler is movably contacted with a second T-shaped fastening screw, a second threaded hole is formed in the inner wall of the front side of the U-shaped calibration balancing weight, and the second threaded hole is in threaded connection with the second T-shaped fastening screw.

Preferably, the same bearing is fixedly connected between the inner walls of the two sides of the groove, and the inner side of the inner ring of the bearing is fixedly connected with the outer side of the rotating shaft.

Preferably, one side of the top of the supporting arm is movably contacted with the bottom of the lever main ruler.

Compared with the prior art, the beneficial effects of the utility model are that:

the friction at the joint can be reduced to improve the measurement accuracy by the mode that the three anti-abrasion balls on the V-shaped block surround the outer side of the corresponding round shaft and are in rolling contact with the outer side of the round shaft, the friction at the joint can be reduced, the first T-shaped fastening screw rod is rotated reversely to enable the first T-shaped fastening screw rod to be displaced leftwards and separated from the round seat, the lever main ruler is rotated horizontally by the two round shafts to drive the two V-shaped blocks to rotate, the V-shaped block drives the rotating shaft and the round seat to rotate by the cross rod, when the bottom of the lever main ruler is rotated to be staggered with the top of the supporting arm, the first T-shaped fastening screw rod is rotated forwardly to enable the first T-shaped fastening screw rod to be displaced rightwards to squeeze and fix the round seat, and at the moment, the lever main ruler is staggered with the supporting arm up and down, the support arm is touch to the lever main scale when can avoiding measuring, during the calibration, the separation of second T shape fastening screw makes it and lever main scale is rotated in the opposite direction, if the left end upwarp of lever main scale this moment, then corresponding U-shaped calibration balancing weight that moves to the left, if the right-hand member tilt up of lever main scale like this, then corresponding U-shaped calibration balancing weight that moves to the right reaches the weight that can change both sides, thereby reach and calibrate lever main scale and make it be in the horizontality before not measuring.

The utility model relates to a rationally, the frictional force of junction when can effectively reducing the lever main scale and place, through the frictional force influence that reduces the junction in order to improve the measurement precision, be convenient for carry out the balance calibration to the lever main scale fast, and can the position behind horizontal rotation adjustment lever main scale and the lock solid horizontal adjustment, guarantee measuring stability, be favorable to the use.

Drawings

Fig. 1 is a schematic structural diagram of a measuring device for low-density drilling fluid according to the present invention;

FIG. 2 is a schematic structural view of portion A of FIG. 1;

FIG. 3 is a side view of the lever main scale, the U-shaped calibration weight, the first ball and the second T-shaped fastening screw attachment of FIG. 2;

FIG. 4 is a bottom view of the U-shaped calibration weight, first ball and second T-shaped clamping screw connection of FIG. 3.

In the figure: the drilling tool comprises a lever main scale 1, a vernier scale 2, a drilling fluid cup 3, a supporting arm 4, a support 5, a groove 6, a rotating shaft 7, a circular seat 8, a first T-shaped fastening screw rod 9, a cross rod 10, a V-shaped block 11, an anti-abrasion ball 12, a circular shaft 13, a U-shaped calibration balancing weight 14, a first ball 15 and a second T-shaped fastening screw rod 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a measuring device for low-density drilling fluid comprises a drilling fluid densimeter main body, the drilling fluid densimeter main body comprises a lever main ruler 1, a vernier 2 which is slidably sleeved on the lever main ruler 1, and a drilling fluid cup 3 and a balance column which are respectively fixed at two ends of the lever main ruler 1, a support 5 is arranged below the lever main ruler 1, a support arm 4 is fixedly connected with the top of one side of the support 5, a groove 6 with openings at the front side and the rear side is arranged at the top of the support 5, a rotating shaft 7 is rotatably arranged in the groove 6, a round seat 8 is fixedly connected with the bottom end of the rotating shaft 7, the outer side of the round seat 8 is movably contacted with the inner wall of the groove 6, the round seat 8 is fastened with the support 5 by screw threads, the top end of the rotating shaft 7 extends to the upper part of the support 5 and is fixedly connected with a cross rod 10, both, the front side and the rear side of the lever main ruler 1 are fixedly connected with round shafts 13, the inner walls at two sides and the inner wall at the bottom of the V-shaped block 11 are nested with anti-abrasion balls 12, the round shafts 13 are positioned between the corresponding three anti-abrasion balls 12, the anti-abrasion balls 12 are in rolling contact with the outer side of the corresponding round shafts 13, a U-shaped calibration balancing weight 14 is arranged above the cross bar 10, two first balls 15 are nested on the inner wall at the front side, the inner wall at the rear side and the inner wall at the top of the U-shaped calibration balancing weight 14, the two first balls 15 on the inner wall at the front side and the two first balls 15 on the inner wall at the rear side of the U-shaped calibration balancing weight 14 are respectively in rolling contact with the front side and the rear side of the lever main ruler 1, the two first balls 15 on the inner wall at the top of the U-shaped calibration balancing weight 14 are in rolling contact with the top of the lever main ruler 1, the U-, the friction of junction when can effectively reduce lever main scale 1 and place, through reducing the friction influence of junction in order to improve the measurement precision, be convenient for carry out the balance calibration to lever main scale 1 fast, and can horizontal rotation adjustment lever main scale 1 and lock solid position behind the horizontal adjustment, guarantee measured stability, be favorable to using.

In the utility model, one side of the round seat 8 is movably contacted with a first T-shaped fastening screw 9, one side inner wall of the groove 6 is provided with a first threaded hole, the first threaded hole is in threaded connection with the first T-shaped fastening screw 9, the front side of the lever main ruler 1 is movably contacted with a second T-shaped fastening screw 16, the front side inner wall of the U-shaped calibration counterweight block 14 is provided with a second threaded hole, the second threaded hole is in threaded connection with the second T-shaped fastening screw 16, the same bearing is fixedly connected between the two side inner walls of the groove 6, the inner ring inner side of the bearing is fixedly connected with the outer side of the rotating shaft 7, the top side of the supporting arm 4 is movably contacted with the bottom of the lever main ruler 1, the utility model has reasonable design, can effectively reduce the friction force of the joint when the lever main ruler 1 is placed, the measurement degree is improved by reducing the friction force influence of the joint, and is convenient for quickly balancing and calibrating the lever, and the lever main ruler 1 can be horizontally rotated and adjusted and the horizontally adjusted position is locked, so that the measuring stability is ensured, and the use is facilitated.

The working principle is as follows: when the device is used, the two circular shafts 13 on the lever main ruler 1 are respectively placed in the corresponding V-shaped blocks 11, at the moment, the three anti-abrasion balls 12 on the V-shaped blocks 11 surround the outer sides of the corresponding circular shafts 13 and are in rolling contact with the outer sides of the circular shafts 13, and the anti-abrasion balls 12 and the circular shafts 13 are supported in a rolling contact mode, so that the friction of a connecting part can be reduced, and the measurement accuracy is improved;

when the lever main ruler 1 is adjusted in a horizontal rotating mode, under the action of a first threaded hole formed in a support 5, a first T-shaped fastening screw 9 is rotated reversely to enable the first T-shaped fastening screw to move leftwards and be separated from a round seat 8, at the moment, the lever main ruler 1 is rotated horizontally to drive two round shafts 13 to rotate horizontally, the round shafts 13 drive a V-shaped block 11 to rotate through corresponding three anti-abrasion balls 12, the V-shaped block 11 drives a rotating shaft 7 and the round seat 8 to rotate through a cross rod 10, when the bottom of the lever main ruler 1 rotates to be staggered with the top of a support arm 4, the first T-shaped fastening screw 9 is rotated forwards to enable the first T-shaped fastening screw 9 to move rightwards to squeeze and fix the round seat 8, the position of the lever main ruler 1 after horizontal adjustment can be fixed, at the moment, the lever main ruler 1 and the support arm 4 are staggered up and down, the lever main ruler 1 can be prevented;

before drilling fluid is not poured into a drilling fluid cup 3, a floating weight 2 is in an initial position, and a lever main ruler 1 inclines, the balance degree calibration needs to be carried out, when the calibration is carried out, a second T-shaped fastening screw rod 16 is reversely rotated, under the action of a second threaded hole formed in the inner wall of the front side of a U-shaped calibration balancing weight 14, the second T-shaped fastening screw rod 16 rotates and is separated from the lever main ruler 1 forwards, at the moment, if the left end of the lever main ruler 1 tilts upwards, the corresponding U-shaped calibration balancing weight 14 moves leftwards, the U-shaped calibration balancing weight 14 drives a first ball 15 to roll on the outer side of the lever main ruler 1, and similarly, if the right end of the lever main ruler 1 tilts upwards, the U-shaped calibration balancing weight 14 correspondingly moves rightwards to change the weight on two sides, so that the lever main ruler 1 is calibrated to be in a horizontal state before the measurement is carried out, after the adjustment is finished, the second T-shaped fastening screw rod 16 is forwardly rotated to extrude the lever main ruler 1 backwards, the adjusted position of the U-shaped calibration weight 14 can be fixed.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Measuring device of low density drilling fluid, including the drilling fluid densimeter main part, the drilling fluid densimeter main part includes lever main scale (1), slip cover establishes trip yard (2) on lever main scale (1) and fixes drilling fluid cup (3) and the equilibrium post at lever main scale (1) both ends respectively, a serial communication port, the below of lever main scale (1) is equipped with support (5), and one side top fixedly connected with support arm (4) of support (5), the recess (6) that front side and rear side were the opening setting is seted up at the top of support (5), and recess (6) internal rotation installs pivot (7), the bottom fixedly connected with circle seat (8) of pivot (7), the outside of circle seat (8) and the inner wall movable contact of recess (6), circle seat (8) and support (5) screw-thread tightening, the top of pivot (7) extends to the top of support (5) and fixedly connected with horizontal pole (10), the two sides of the top of the cross rod (10) are fixedly connected with V-shaped blocks (11), the lever main ruler (1) is positioned between the two V-shaped blocks (11), the front side and the rear side of the lever main ruler (1) are fixedly connected with round shafts (13), the inner walls of the two sides and the inner wall of the bottom of each V-shaped block (11) are respectively nested with an anti-abrasion ball (12), each round shaft (13) is positioned between the corresponding three anti-abrasion balls (12), the anti-abrasion balls (12) are in rolling contact with the outer sides of the corresponding round shafts (13), a U-shaped calibration balancing weight (14) is arranged above the cross rod (10), the inner wall of the front side, the inner wall of the rear side and the inner wall of the top of the U-shaped calibration balancing weight (14) are respectively nested with two first balls (15), the two first balls (15) positioned on the inner wall of the front side of the U-shaped calibration balancing weight (14) and the two first balls (15) on the inner wall of, two first balls (15) positioned on the inner wall of the top of the U-shaped calibration balancing weight (14) are in rolling contact with the top of the lever main scale (1), and the U-shaped calibration balancing weight (14) is fastened with the lever main scale (1) through threads.

2. The device for measuring the low-density drilling fluid is characterized in that a first T-shaped fastening screw (9) is movably contacted with one side of the round seat (8), a first threaded hole is formed in the inner wall of one side of the groove (6), and the first threaded hole is in threaded connection with the first T-shaped fastening screw (9).

3. The low-density drilling fluid measuring device according to claim 1, wherein a second T-shaped fastening screw (16) is movably contacted with the front side of the lever main scale (1), a second threaded hole is formed in the inner wall of the front side of the U-shaped calibration counterweight block (14), and the second threaded hole is in threaded connection with the second T-shaped fastening screw (16).

4. The measuring device of the low-density drilling fluid is characterized in that the same bearing is fixedly connected between the inner walls of the two sides of the groove (6), and the inner side of the inner ring of the bearing is fixedly connected with the outer side of the rotating shaft (7).

5. The low density drilling fluid measuring device according to claim 1, wherein the top side of the support arm (4) is in movable contact with the bottom of the lever main scale (1).