QJ-A机械式随钻震击器使用说明书(英文)
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QJ-A DRILLING JAR
OPERATION MANUAL BEIJING PETROLEUM MACHINERY CO.
SEP 2010
Foreword This new kind of drilling jar, including its structure, principle and application is introduced in this manual. After the drilling jar being used and repaired by customers, its reliability and performance may have some changes. These changes depend on the application conditions and maintenance level. Because of the continuous improvements on the products, some details in the manual may not be same as in actual operation. These differences don’t affect the understanding of the product's structure, the performance and the application by customers. If having any questions, please contact us. The service-life of the drilling jar and operation effects are related with designing, manufacturing, and also properly operating of customers. We would like to supply customers with high quality products in compliance with specification of the quality assurance system of ISO9001, and also hope that the operators can carefully read the manual to give full play to the quality and the performance of products and successfully achieve the expectant drilling operations. The drilling jar and the information in this manual may not be suitable in some special applications. The operator should make right judgment on the selection and the application of the drilling jars. As the continuous improvements on the drilling technology, the customers will have new requirements on the application. We will be very happy to continuously improve our products to meet your special requirements. Welcome to contact us by the following methods!
BPM Beijing Petroleum Machinery Co.
Address: No. 41 Zhixin Road,Haidian District, Beijing 100083, China Fax: 86-10-62311837 Phone: 86-10-83597657（Sale） 86-10-83597659（Technical） Homepage: http://www.bpmf.com.cn E-mail: bpm.tech@vip.163.com
Content
1. Description ....................................................................................................................................... 1
2. Model Illustration ............................................................................................................................. 1
3. Principle ........................................................................................................................................... 1
4. Application Notice ............................................................................................................................ 3
4.2 Position in the BHA .......................................................................................................... 3
4.3 Friction of the drill string ................................................................................................... 3
4.4 Pump-open Force ............................................................................................................. 4
4.5 Jarring up ......................................................................................................................... 4
4.6 Jarring down ..................................................................................................................... 4
4.7 Methods of the adjusting of the release force .................................................................. 5
5. Maintenance .................................................................................................................................... 6
5.1 Preparation ....................................................................................................................... 6
5.2 Disassembling Procedure ................................................................................................ 6
5.3 Assembling Procedure ..................................................................................................... 7
5.4 Repair & Coordinate the limiter ......................................................................................... 8
6. Test & Oil Filling ............................................................................................................................... 9
6.1 Oil Filling ........................................................................................................................... 9
6.2 Release force test ............................................................................................................ 9
6.3 Sealing Test .................................................................................................................... 10
7. Trouble & Solutions ....................................................................................................................... 10
