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Year Established:2013

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Hydraulic Mechanical Drilling Jar

Hydraulic Mechanical Drilling Jar

  • Full Hydraulic Drilling Jar

Full Hydraulic Drilling Jar

Payment Terms:        T/T, L/C
Port:                           China Port
Machine Type:           Drilling Tool
Brand Name:              TIANHE
Material:                     Carbon Steel
Packing:                     Steel shelf or Wooden cases

Product Details

Quick Details

Description

1. General
 
  Type QYSZ Full Hydraulic Drilling Jar is a kind of drilling jar which combines the jarring up and down actions. This series of jar is suitable for various drilling operations. When used, it goes downhole with BHA. For some reason blocked or stuck occurs in the downhole in the process of drilling, the operator can lift or lower the drilling string on the drilling platform to make the drilling jar provide a huge impact and strike upward or downward to free the jar so that the drilling operation could be resumed quickly. Avoiding the blocked or stuck evolves into an accident, resulting in greater economic losses. Type QYSZ Full Hydraulic Drilling Jar gives full consideration to a series of serious impact on problems of drilling such as high temperature, high pressure, high torque, and so on.
 
  A series of specific design has been adopted to make Type QYSZ Full Hydraulic Drilling Jar has the advantages of simple operation, big shock force, convenient adjustment, high connection strength, stable performance, safety and reliability, convenient maintenance and so on many merits. Done properly, mistaken shock will not occur when the product in the drilling, tripping, making a connection or hit the downhole. The hydraulic delay function allows the operator to dynamically adjust jarring up and down forces. Fully sealed oil bath lubrication is helpful to reduce wear and tear, thus improve the service life. In addition, the jar should be connected most appropriately above the neutral point of the BHA to keep the jar in tension to make it meet the needs of various working conditions such as the land and sea (including the underbalanced drilling), when used in the downhole. Our company production of Type QYSZ Full Hydraulic Drilling Jar see figure 1.
 
 
                        
Figure 1 Type QYSZ Full Hydraulic Drilling Jar
 
 
 
 
2. Construction
 
  The construction of Full Hydraulic Drilling Jar is shown in figure 2. (Note: not to scale.).
The Full Hydraulic Drilling Jar consists of round key mandrel, round key outer barrel,
round key, upper crossover sub, mandrel coupling, upper float, upper float outer barrel, upper mandrel, lock sleeve, metering valve, middle mandrel, lower float, lower float outer barrel, crossover sub, lower mandrel, lower valve outer barrel, lower sub, seal kits and so on. The technical parameters of type QYSZ Full Hydraulic Drilling Jar see table 1.
   
Type
O.D. (mm)
I.D.
(mm)
Connection
(API)
Maximum
working
load
(kN)
Tensile yield
strength
(kN)
Torsion
strength
(kN-m)
QYSZ121
121
50.8
NC38
350
1500
18
QYSZ165
165
69
NC50
700
3750
75
QYSZ172
172
69
NC50
700
3750
75
QYSZ178
178
69
NC50
800
4650
91
QYSZ203
203
76
6 5/8 REG
1000
6650
133
QYSZ229
229
76
7 5/8 REG
1200
7000
160
QYSZ241
241
76
7 5/8 REG
1250
7350
180
 
 Table 1 Technical parameters of type QYSZ Full Hydraulic Drilling Jar
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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