Logging Tools

Tension Sub

Tension is one of the items that must be measured during open-hole logging.

The tension sub is used to measure the tensile and compressive forces acting on both ends of the tool in the axial direction.

Facilitate the early detection of stuck or obstructed tool strings during the logging process, provide warning information for the system, and take emergency measures in a timely manner.

If you feel any interests in Vigor's Tension Sub or other relevant downhole tools, you can always contact us for learning more.

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Product Detail

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Description

The Tension Sub from Vigor is used to correctly judge the status of the cable or instrument stuck in the logging process, which is of great significance to improve the logging efficiency and reduce the logging cost.

In the real job, there is often a phenomenon that the instrument is stuck when it is run into the well or lifted up, but it is difficult to distinguish whether the cable is stuck or the instrument is stuck in the process of lifting.

If the correct measures cannot be taken according to the real status of the downhole string, the cable will have risks of being cut down or the instrument is left the well, which will seriously affect the furnishing of the logging task and increase extra cost.

Vigor's Tension Sub with great technical properties which will help client to avoid these potential risks.

Features

· Truly reflect the real-time force of downhole instruments.

· Can be combined with a variety of instruments for logging.

· Can be used in high-temperature and high-pressure jobs.

· Maximum tension ranges up to 25,000 lbf.

Tension sub working Principle

Tension Sub is usually connected to the lower end of the cable head and the upper of the telemetry. The axial tensile or compressive force received by any link of the tool string is transmitted to the tension sensor to generate an electrical signal, which is sent to the remote transmission tool.

The outline drawing of the Tension Sub is shown in Figure 1:Figure 1 outline drawing of the Tension Sub

Technical Parameter

Diameter	3-3/8 In.
Makeup Length	42.4 In.
Max. Temperature	-20℃-175℃
Max. Pressure	20,000 psi
Max. Tension	25,000lbf
Max. Compression	25,000lbf
Overload Rating	150%
Max. Load Cell Excition Voltage	15 VDC
Output	Tension Sensitivity: 2.5027mV/V@ +20,000lbs; Compression Sensitivity: -2.4973mV/V @ -20,000lbs

* Other profiles and seal bore sizes available depending on tubing size selected and request.

Delivered Photoes

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Our Packages are tight and convenient for storage, we make sure Tension Sub safely reach client fields even after thousands of kilometers long trip transportation by sea and by truck, we also have our inventory which can meet the requirements of large and urgent orders from client.

About VIGOR

China Vigor Drilling Oil Tools and Equipment Co., Ltd.

Vigor is committed to researching, developing, manufacturing, and selling high-tech downhole tools and equipment. Our focus is on utilizing advanced technologies to help our customers reduce the costs of oil and gas exploration, production, and completion while keeping up with the development of the world's energy industry.

VIGOR'S MISSION

We continue to promote the development of the world's energy industry with high quality and innovative models.

VIGOR'S VISION

Become a century-old enterprise in the energy industry, serving 1000 leading enterprises in the energy industry worldwide.

VIGOR'S VALUES

Team spirit, innovation and change, focus, integrity, and live our dream true!

Company History

Vigor is always your reliable partner in the oil and gas industry.

Vigor expanded our manufacturing facilities in different locations of China which help us to serve the customers with swift delivery, diversity and efficiency of production. All our manufacturing facilities meet and exceed APl and international quality standards.

With a solid background, experiences, full support from the engineering team, and high efficiency in production, Vigor has established stable and long terms cooperation with well-known international companies from the US, Canada, Colombia, Argentina, Brazil, Mexico, Italy, Norway, UAE, Oman, Egypt, Saudi Arabia and Nigeria, Etc.

Vigor R&D Certificates

Vigor team has consistently prioritized investment in product research and development. In 2017, several new products developed by Vigor were successfully tested and widely promoted, with advanced technological offerings being adopted in bulk by clients on-site. By 2019, our modular disposable guns and site selection perforating series had been successfully deployed in client wells. In 2022, Vigor invested in a high-tech tool manufacturing plant to further enhance our production capabilities.

Our commitment to the R&D, production, and testing of new products remains unwavering. If you are interested in industry-leading products or technologies, do not hesitate to contact our professional technical team.