Oil and gas well development adopts network neural cable and directional measurement system

Abstract

The invention relates to the field of oil production in oil fields, and specifically discloses a network neural cable for oil and gas well development, including a cable body, the cable body includes an insulating layer, a detection sub-cable and a vibration sensing optical fiber arranged in the insulating layer; one end of the cable body is provided with a shear Cutting head, the end of the detection sub-cable passes through the cutting head and then extends to the outside of the cutting head, and the cutting head is provided with a cutting assembly for cutting the detection sub-cable. In the present invention, a vibration sensing optical fiber is added in the cable, and the vibration signal generated by the drilling tool motor in the drilling is collected through the vibration sensing optical fiber itself, and the position of the drilling tool motor (that is, the vibration source) is calculated for detection, thereby obtaining the positive vibration signal. Drilling position information, and use this information as a reference value for traditional magnetic steering system detection, to improve the deviation defects that may be caused by traditional single magnetic steering control, so as to accurately control the horizontal well trajectory.

Description

technical field [0001] The invention belongs to the technical field of oil production in oil fields, and in particular relates to a network neural cable and a directional measurement system for oil and gas well development. Background technique [0002] SAGD technology, that is, steam-assisted gravity unloading technology, is suitable for the exploitation of ultra-heavy oil reservoirs or natural bitumen with very high crude oil viscosity. This technology uses steam as the heat source, through the combination of heat conduction and heat convection, realizes the convection between steam and oil and water, and then relies on the gravity of crude oil and condensate to recover oil. [0003] SAGD can be realized in the following two ways: the first way is to adopt a pair of parallel horizontal wells, and the second way is to adopt a combination of vertical wells and horizontal wells. In the double horizontal well SAGD method, it is more complicated and difficult to complete the h...

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Problems solved by technology

[0006] Aiming at the deficiencies of the above-mentioned prior art, the technical problems to be solved by the present invention are: a single measurement method has relatively large control trajectory error, high requirements for measurement conditions, long construction period, and many hidden dangers of operation safety.

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