CN2615643Y

CN2615643Y - Mud displacement measuring apparatus

Info

Publication number: CN2615643Y
Application number: CN 03245811
Authority: CN
Inventors: 王会永; 白汉栋; 薛高峰; 管林泽
Original assignee: Drilling Engineering Technology Research Institute Of Zhongyuan Petroleum Exploration Bureau Sinopec
Current assignee: Drilling Engineering Technology Research Institute Of Zhongyuan Petroleum Exploration Bureau Sinopec
Priority date: 2003-05-08
Filing date: 2003-05-08
Publication date: 2004-05-12
Anticipated expiration: 2013-05-08

Abstract

The utility model discloses a measuring device for sludge output volume. The utility model comprises a machine base, a bearing frame and a shaft. A hole is opened in the machine base under the shaft. A baffle plate handle and a blocking baffle plate are arranged on the middle portion of the shaft. A balance bar is equipped on one side of the shaft, and an inductive wheel is equipped on the other side of the shaft. An inductive voltage or current output sensing device is equipped on the centering portion of the inductive wheel. The measuring device for sludge output volume has simple mechanic structure, convenient assemblage and debugging, and the sensing device has long servicelife, high functional reliability, wherein signal has high anti-interference ability. And the measuring device for sludge output volume achieves that the situation of variation of fluid can be judged audio-visually by sway of the balance bar while monitoring variation of output volume by variation of voltage or current.

Description

The mud displacement measurement mechanism

The utility model relates to a kind of mud displacement measurement mechanism, belongs to the drilling fluid testing tool.

In the well drilling industry, mud returns this parameter of output and is provided with as security parameter at home, and it is directly connected to the safety of drilling process, and therefore, it is particularly important that the reliability of its metering system and accuracy seem.Because the special operation condition of drilling engineering, the detection that drilling fluid is returned output at present generally adopts mechanical driving device to drive the mode of slide rheostat, by the change of resistance and the dividing potential drop effect of resistance, realizes the time real monitoring of displacement variation.But, this mud displacement measurement mechanism adopts the contact type measurement mode, and because its operating characteristic is to move reciprocatingly in small range of potentiometer, make measurement mechanism concentrated wear or damage, cause whole surveying work reliability low, influenced the driller returns output to mud accurate judgement.

The purpose of this utility model just provides a kind ofly can accurately measure the mud displacement measurement mechanism that mud returns output.

The purpose of this utility model is achieved in that the mud displacement measurement mechanism is made up of base, bearing bracket stand, axle, bearing bracket stand is fixed on the base, on the base below the axle, have the hole, the central part of axle is equipped with the baffle plate handle, the baffle plate handle inserts in the hole, be equipped with on the baffle plate handle adjustable positions the choked flow baffle plate, one side of axle is equipped with balance stem, balance stem is provided with the balancing weight of adjustable positions, on the opposite side of axle, induction wheel is housed, and induction type electricity (pressure) stream output transducer is housed on the position of induction wheel centering.

The utility model physical construction is simple, and Installation and Debugging are convenient, the sensor long service life, the functional reliability height, the signal antijamming capability is strong, and can be implemented in when utilizing electricity (pressure) flow valuve variation monitoring displacement variation, can judge the change of fluid situation intuitively by the swing of balance stem.

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1: the utility model structural representation;

Fig. 2: eccentric wheel and the comparison synoptic diagram of induction type electricity (pressure) stream output transducer when two working positions of A, B.

The mud displacement measurement mechanism is by base 1, bearing bracket stand 9, axle 10 is formed, as shown in Figure 1, bearing bracket stand 9 is fixed on the base 1, on the base below the axle 10 1, have hole 2, the central part of axle 10 is equipped with baffle plate handle 3, in baffle plate handle 3 patchholes 2, be equipped with on the baffle plate handle 3 adjustable positions choked flow baffle plate 4, one side of axle 10 is equipped with balance stem 5, balance stem 5 is provided with the balancing weight 6 of adjustable positions, adjust the angle that axle 10 rotates by balancing weight 6 moving on balance stem 5, induction wheel 8 is housed on the opposite side of axle 10, with induction type electricity (pressure) stream output transducer 7 is housed on the position of induction wheel 8 centerings, sensor 7 sensitive surface and induction wheel 8 distance of end of curve (i.e. minor increment between the two) farthest can pass through sensor 7 self threaded adjusting.

During use, choked flow baffle plate 4 is put into slush-pit launder, promote choked flow baffle plate 4 when mud is discharged and drive axle 10 rotations, if mud returns output and changes, choked flow baffle plate 4 drives axle 10 angles that turn over and also changes thereupon, also just makes the induction wheel 8 and the distance of sensor 7 sensitive surface change, thereby changes output electricity (pressure) stream of sensor, finish the non-contact measurement that drilling fluid returns output, the purpose of real monitoring displacement variation when reaching.We illustrate the effect of this device by Fig. 2, shown in Figure 2 is that this device compares synoptic diagram when two working positions of A, B, A figure expression eccentric wheel 8 is bigger with the operating distance d1 of sensor 7 among Fig. 2, electricity (pressure) stream of sensor 7 outputs is also bigger, show that axle 10 angles that turn over are big, the discharge capacity of institute's fluid measured is big; The working position state of the eccentric wheel 8 that B figure is among Fig. 2 after axle turns over 60 degree clockwise, at this moment between eccentric wheel 8 and the sensor 7 apart from the operating distance of d2 less than d1, electricity (pressure) stream of sensor 7 outputs is also less, shows that axle 10 angles that turn over are less, and the discharge capacity of the mud of surveying is corresponding also less.

Claims

1, a kind of mud displacement measurement mechanism is by base (1), bearing bracket stand (9), axle (10) is formed, bearing bracket stand (9) is fixed on the base (1), it is characterized in that: on the base (1) of axle (10) below, have hole (2), the central part of axle (10) is equipped with baffle plate handle (3), in baffle plate handle (3) patchhole (2), be equipped with on the baffle plate handle (3) adjustable positions choked flow baffle plate (4), one side of axle (10) is equipped with balance stem (5), balance stem (5) is provided with the balancing weight (6) of adjustable positions, induction wheel (8) is housed on the opposite side of axle (10), and induction type electricity (pressure) stream output transducer (7) is housed on the position of induction wheel (8) centering.