the releasing and circulating overshot is the fishing tool which it is simple,high strength and high reliability and fishing from outside of fishing objects.
the internal catch mechanisms have two …
the releasing spear is a fishing tool that provide a dependable and simple means of engaging a fish internally. the spear is easy release from the fish when desired, and is easy reengagement after the…
the casing spear is used to engage a fish internally in order that it may be pulled or jarred from the hole. it is especially designed for marine operations.
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the impression block used in fishing operations is an assembly of a steel body and a pure lead founded at the bottom. it is designed to enable the operator to determine the configuration of the top of…
junk sub is normally run just above the drill bit or milling tool, with a cup for catching objects too heavy to be completely circulated out of the hole.
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the reverse circulation junk basket is used to retrieve all types of small junk objects in well bores. such as bit cones, cutting blades and hand tools, etc..
during operation, with the steel …
a few advatages of the float collar and float shoe provided by our company are:
1. high strenght design ensures high pressure bump and back flow resistance;
2. withstands long perids of circulat…
the square drive roller kelly bushing provides the following advantages:
1. pulling out or feeding off string can be done while rotating;
2. because fo its integral construction , it can not fly…
the pin drive roller kelly bushing provides the following advantages:
1. pulling out or feeding off string can be done while rotating;
2. because fo its integral construction , it can not fly ou…
the RCR centralizer consists of a rigid body, on which machined five spiral blades. there are three ro four modified alloy steel, fully heat treated rollers fixed on every spiral blades. the assembly …
the casing scraper is used to clean cement, mud, embedded bullets, rust, mill scale, paraffin, perforation burrs and other substances from the inside walls of casing. maintaining a clean casing I.D. i…
casing cup tester is mainly used for the pressure test on the casing string and blowout preventer stack. all of the oil (gas and water) well has been running in hole with casing and has been installin…
the quick-operating thread protector is a manually-operated device for protecting external pin-end threads on casing. it is simple, tough and secure, the fast and easy operation of quick-operating thr…
AJ type safety joint is a specialized joint consisting of two parts. the specialized joint takes protective effect for drilling stem in drilling, repairing and test oil (gas) engineering, etc. it is u…
tool joints of our company are made of modified alloy steel, then fully heat treated. so the mechanical properties in accordance with API standard ,such as hardness, strength and impact strength are a…
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea