GEOPHYSICAL CABLE (OPTIONS) AND THE WELLS RESEARCH METHODS Russian patent published in 2019 - IPC G01V1/52 G01V1/40 G01V3/18 H01B7/22 

FIELD: oil and gas industry; mining.

SUBSTANCE: invention relates to the oil and gas and mining industries, in particular, to the geophysical surveys and special operations in vertical, directional and horizontal wells devices and methods. Geophysical cable with one or more electrically insulated conductors is made with one, or two, or three pairs of oppositely directed armor layers. At that, in order to increase the cable axial stiffness, contractile stability and to ensure the mounting downhole tools durability to 40÷70 % of making the 60÷300 kN and more the cable tensile strength, along with this, each pair of load bearing armor is made of wire of the same diameter, which value in the 2^nd and 3^rd pairs is 1.2÷2.5 times of the first pair of armor wires diameter. Cable is made with the possibility of application of the polymer or composite material coating with the necessary durability, thermal and chemical resistance onto each pair of armor. Also disclosed is the well testing method, in which the devices to the well delivery is carried out by means of a cable of the above-mentioned construction using the sealing wellhead systems and pushing devices.

EFFECT: increase in the cable axial rigidity and contractile stability, as well as the downhole tools to the cable attachment durability and, as a result, increase in the obtained research data information content.

2 cl, 1 tbl