API 7-1 Double Acting Mechanical-Hydraulic Drilling Jar/Fishing Jar

• Customization: Available
• After-sales Service: Support
• Warranty: Support
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Type: Drilling Jar
• Style: Mechanical-Hydraulic
• Size: 95mm-168mm
• Top Sub V Mandrel: 3600-36000ibft
• Lower Mandrel: 1400-4300lbft
• Washpipe V Lower Mandrel: 700-2900lbft
• Transport Package: Container
• Specification: Standrad
• Origin: China
• HS Code: 84314310
• Production Capacity: 5000 Sets Per Month

Product Description

API 7-1 Double Acting Mechanical-Hydraulic Drilling Jar/Fishing Jar

Product Application

The drilling jar is consists of drilling up jar and drilling down jar in one body, which has stable working performance and strong jarring force both up and down. When in down hole, it can release the struck; it is a desire tool for directional well and deep well

 

 

Working principle

Up jarring

Lowering drill string to make drilling jar closed completely (in locking position), elevating drill string by the order of small tonnage to larger tonnage, which make spring and hydraulic cylinder delay, when mandrel move to a position and become release resistance, the spring force stored in drill string will transfer to upforward energy and up jarring. Repeating the above several times can force tool to produce continues up jarring.

Down jarring

Move up and down the drill string to make drilling jar closed completely (in locking position), lowering drill string to make spring compressed and stored energy. When pressure of jar is larger than the desired lower unlocking force, grapple will slide out from mandrel to release the locking and make down jarring. Repeating the above several times can force tool to produce continues down jarring. 
 

Parameters/Model		ZSJ80B	ZSJ76B	ZSJ70B	ZSJ64B	ZSJ62B	ZSJ56B	ZSJ46B
		ZXJ80B	ZXJ76B	ZXJ70B	ZXJ64B	ZXJ62B	ZXJ56B	ZXJ46B
O.D. (mm)		203	197	178	165	160	146	121
I.D. (mm)		71.4	71.4	70	57	57	57	47
Pull down overall length	Up	5515	5515	5424	5360	5360	5730	5300
(mm)	Down	5250	5250	5215	5215	5215	5000	4760
Pull down stroke (mm)	Up	368	368	344	344	344	332	305
	Down	178	178	178	178	178	180	178
API Connection		6 5/8 REG	6 5/8 REG	NC50	NC46	NC46	4 1/2 FH	NC38
Max.tensile load (KN)		2500	2500	2300	2200	2200	2000	1400
Max.working Torque (N.m)		20×103	18×103	15×103	15×103	15×103	15×103	13×103
Rated release force for up jar (KN)		400~600	400~600	350~550	300~450	300~450	200~350	150~250
Max.up jarring released force (KN)		750	750	550	550	550	450	270
Max.down jarring release force (KN)		600	600	550	500	500	400	250
Weight		2124kg	1950kg	1350kg	1200	1090kg	870kg	650kg

Company Profile

 

 

 

We shandong yacheng petroleum technology are established in 2003 year, located in Dongying city, shengli oilfield,which is  second largest oilfield of China. 

Our business scope includes oilfield equipment supply, such as, drilling equipment and spares, wellhead equipment ,oil recovery equipment. 
We have been served Shengli oilfield in the last 19 years, established a solid partnership and network with quality OEM factories. 
Based on our responsive and responsible  engineering & commercial team, we can provide one-stop shop service to our customer, and package plan of procurement which brings added value in terms of delivery time, fair prices, inventory in stock. 
We are Looking forward to build up partnership with your company and provide our attentive service to you.

 

Certifications

Packaging & Shipping

 

FAQ

 

1) About Packing Inner packing: white box, color boxes (upon request), Outer packing: cartons or pallets
2) Terms of payment: We accept T/T,L/C
3)Terms of Shipment: About 30 days after receiving the advance payment,or according to both parties agreement
4)Ports of shipment: Tianjin,Qingdao, shanghai or other required Port, by sea or air
5)Guarantee: One year since delivery.
6)Inspection: 100% testing before delivery.