Weight Indicator System

Weight Indicator System

Application Areas

weight indicating system is used for indicating and recording variation of hookload of drilling string and weight on bit during drilling and workover service for oil exploration or geological prospecting. It can assist drilles to judges operation situation and obtain proper drilling parameters.

Features

1. there are 16 versions of JZ Series Weight Indicating Systems ranging from 500 tons to 40 tons for different types of drilling / workover rigs. Each set of weight indicating system is composed of a JZG deadline anchor, a JZ weight indicator and a JZJ recorder. According to the way of installation, deadline anchors can be classified into two types, namely, vertical type and horizontal type.
        2. It features high accuracy and excellent reliability.
        3. It is strongly corrosion-resistant, Anticorrosive escapement device adapts well to the working environment on the sea.
        4. The dual-system (metric and imperial) secondary instrument can be used not only in China but also in other countries.
        5. As quick self-sealing connectors are used, connection between hoses can be realized in a fast, convenient and reliable manner.
        6. Working curves recorded with ink facilitates creation of drilling files.

Technical Specifications

1. Allowable error of output pressure of deadline anchor: ±1.0% F.S
        2. Allowable error of weight indicating system: ±2.0% F.S
             Error of weight indicator: ±1.0% F.S
        3. Error of recorder: ±2.0% F.S
        4. Error of weight recording system:±2.5% F.S
        5. Sensitivity: 0.5%F.S
        6. Working temperature:-40~50℃

 

Type Anchor Type Form of Primary Instrument Max.Deadlineload(kN) Number of Lines Load(kN)
JZ900 JZG72 Horizontal 720 14
12
10080
8640
JZ700 JZG60 Vertical 600 14
12
8400
720
JZ500 JZG42 Vertical 420 12
10
5040
4200
JZ500A JZG41 Horizontal 410 12
10
4920
4100
JZ400 JZG35 Vertical 350 12
10
8
4200
3500
2800
JZ400B JZG34A Horizontal 340 12
10
4080
3400
JZ250 JZG24 Vertical 240 12
10
8
2880
2400
1920
JZ200 ZG20 Horizontal 200> 10
8
6
2000
1600
1200
JZ150A JZG18A Vertical 180 10
8
6
1800
1440
1080
JZ150 JZG18 Horizontal 180 10*
8
6
1800
1440
1080
JZ100 JZG15 Horizontal 150 10
8
6
1500
1200
900
JZ60 JZG10 Straight pull 100 8
6
4
800
600
400
JZ40 JZG10A Horizontal 100 6
4
600
400
JZ82 JZG13 Straight pull 136.6 6 820
JZ75 JZG12 Straight pull 125 6 750

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