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Type O.D.
Max. Upward

Jarring Force

Max. Downward

Jarring Force

BZ121 121(4-3/4) 50.8(2) NC38 450 230 6356(250)
BZ159 159(6-1/4) 57.2(2-1/4) NC50 630 360 7265(286)
BZ165 165(6-1/2) 57.2(2-1/4) NC50 630 360 7265(286)
BZ196 196(7-3/4) 71.4(2-13/16) 6-5/8REG 820 460 7062(287)
BZ203 203(8) 71.4(2-13/16) 6-5/8REG 820 460 7062(287)

Hydraulic jar (up / down) designed to use accelerator and flow sub form a coiled tubing short heavy string. The Jar delay device let the energy stored in the stretched and elongated string accelerator, when the energy released will have a great impact, generating shock effect, loose card tool stuck.

Fishing Jar Drawing

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Why choose Lake Petro
Why choose Lake Petro?
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Methods of Payment & Quality Control
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Buyer’s Guide

Please send us your inquiry with detail item description or with Model number. If there is no packing demand we take it as our regular exported standard packing. We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

We can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.

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Lake Petro is located in Dongying City, which is famous for Shengli Oilfield and the largest manufacturing hub of petroleum equipment in China. Following the principle of “quality first, science and technology innovated, people oriented”, every Lake Petro person is sparing no effort to provide the customers with best products and services. Our products are based on advanced production line and testing equipment, our products are designed and manufactured according to certification of API, ISO, GOST, etc.