US Patent Application 17751968. DOUBLE-LAYERED WELLBORE TUBULAR ASSEMBLY simplified abstract

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DOUBLE-LAYERED WELLBORE TUBULAR ASSEMBLY

Organization Name

SAUDI ARABIAN OIL COMPANY

Inventor(s)

Ahmed Abdulaziz Al-mousa of Doha (SA)

Omar M. Al Hamid of Dammam (SA)

Mohamed A. Al Ammari of Dhahran (SA)

DOUBLE-LAYERED WELLBORE TUBULAR ASSEMBLY - A simplified explanation of the abstract

This abstract first appeared for US patent application 17751968 titled 'DOUBLE-LAYERED WELLBORE TUBULAR ASSEMBLY

Simplified Explanation

The patent application describes a double-layered wellbore tubular assembly for use in oil and gas drilling operations.

  • The assembly consists of two wellbore tubulars that are designed to be installed within each other in a wellbore.
  • The first wellbore tubular has a larger inner diameter and creates a hollow space inside it.
  • The second wellbore tubular has a smaller outer diameter and is installed within the hollow space of the first tubular.
  • The space between the outer wall of the second tubular and the inner wall of the first tubular forms a tubing-to-tubing annulus (TTA).
  • The TTA provides a pathway for fluids or other materials to flow between the two tubulars.
  • This double-layered design enhances the structural integrity of the wellbore and improves the efficiency of fluid flow.
  • The assembly can be used in various drilling operations, including oil and gas extraction.


Original Abstract Submitted

A double-layered wellbore tubular assembly includes a first wellbore tubular configured to be lowered into and installed within a wellbore. The first wellbore tubular has an inner diameter and defines a first hollow volume. The assembly includes a second wellbore tubular configured to be lowered into and installed within the first hollow volume of the first wellbore tubular. The second wellbore tubular has an outer diameter smaller than the inner diameter of the first wellbore tubular. The second wellbore tubular installed within the first hollow volume defines a tubing-to-tubing annulus (TTA) between an outer wall of the second wellbore tubular and an inner wall of the first wellbore tubular.

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