Chevron U.s.a. Inc.

Mayank Malik

Albert Eugene Butterfield

Fuju Chen

Mark Allen Gracy

John A Best

Saijin Huang

John DeSantis

Li Jiang

Brian Christopher Weber

A wireline standoff can include a base comprising a base body having a base channel that traverses a thickness of the base body along its length, where the base channel has a width and a depth that are large enough to receive the wireline. The wireline standoff can also include an end piece having an end piece body having an end piece channel that traverses a thickness of the end piece body along the end piece length, where the end piece channel has a width and a depth that are large enough to receive the wireline. The base and the end piece are in a default position when the base channel and the end piece channel are aligned and in a secured position when the end piece is moved relative to the base so that the base channel and the end piece channel are misaligned with each other.

Standoff for wireline

Desirable completion zones can be identified using closure stress in combination with one or more other attributes such as porosity. One computer-based well placement method includes using the computer to: process a seismic data volume to map the spatial distribution of a seismic-based CSS attribute; acquire logs from one or more boreholes in the subsurface region; derive from the logs a relationship between CSS and a minimum in-situ stress; apply the relationship to the CSS attribute map to produce a landing map that highlights desirable completion zones; and place one or more wells in the desirable completion zones. The borehole logs may include direct measurements of minimum in-situ stress (acquired via microfracture testing), sonic tool measurements of P-wave and S-wave velocity, and density tool measurements of bulk formation density.

Well placement using closure stress based landing map

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Houston, TX, United States of America

Mayank Malik