大龙湫
QY-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 ud and repaired by customers, its reliability and performance may have some changes. The changes depend on the application conditions and maintenance level.
Becau of the continuous improvements on the products, some details in the manual may not be same as in actual operation. The differences don’t affect the understanding of the product's structure, the performance and the application by customers. If having any questions, plea contact us.
The rvice-life of the drilling jar and operation effects are related with not only designing and manufacturing but also properly operating of customers.
陀螺图片
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 insure 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 lection 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
86-10-62098867
Fax: 86-10-62311837,
Phone: 86-10-83597657（Sale）
86-10-83597659（Technical）
Homepage:
E-mail: h@
Content
(1)
1. Description
2. Model Illustration (1)
3. Principlecba规则
(1)
加大虚拟内存4. Application Notice (3)
in the BHA (3)
4.2 Position
4.3 Friction
the drill string (4)
of
(4)
4.4 Pump-open
Force
4.5 Jarring up (5)
4.6 Jarring down (5)
4.7 Methods of the adjusting of the relea force (5)
(6)
5. Maintenance
5.1 Preparation (6)
5.2 Disasmbling Procedure (7)
Procedure (8)
5.3 Asmbling
5.4 Repair & Coordinate the limiter (9)
小白菜的功效与作用6. Test & Oil Filling (10)
Filling (10)
6.1 Oil
6.2 Relea force test (10)
6.3 Sealing Test (11)
7. Trouble & Solutions (11)
8. Damageable Components (12)
9. Notices for Ordering (12)
1. Description
QY-A hydraulic drilling jar is a new kind of drilling jar which is suitable for a wide range of drilling operations. This drilling jar overcomes the defects of pure mechanical drilling jar or pure hydraulic drilling jar and combines with merits of them. Mechanical lock and hydraulic delay works together in the process of jarring up and jarring down.
The QY-A drilling jar has following features:
1) It can avoid unexpected strike effectively.
彩铅手绘2) No need any safety clamps or other special actions on the drilling or tripping.
3) Free position in the BHA (in tension, neutral or compression).
4) Mechanical lock unit is not affected by the torque.
5) The relea force of jarring up or down can be adjusted on the drilling platform. Its operation is
very simple, exact and stable.
6) Hydraulic delay allows the driller to adjust the jarring up or down force.
7) Enclod oil chambers increa als and components life.
8) Suitable to work in high temperature situation.
9) It is an ideal tool for controlled directional well and horizontal well.
2. Model Illustration
妊娠纹怎么预防
3. Principle
The structure of QY-A drilling jar is shown in Figure 1, which be made up of housings, mandrels, valve unit, spring unit and lock unit and so on.
全国985大学名单排名
QY-A is a new kind of drilling jar which combines the mechanical with hydraulic structures. The hook lifts the drill strings to make the mandrel move up, the spring unit takes place elastic deformation at the pull or push. The more energy from the hook, the spring unit does the greater deformation. When the deformation reaches high-point, the trip sleeve opens immediately and engages with friction sleeve, and then the jar enters the hydraulic-delay state. The cable hoist is baked at the same time. The drilling jar is
Code (Drilling jar with adjustable relea force)
