Halliburton Energy Services, Inc.

Halliburton Company

James L Hunt

Michael H Johnson

Tim Wiemers

Edgar Chacon

Stephen Rester

John J Baldauff

Rob L Allen

A novel method, system and tool for performing formation and well evaluation while drilling are disclosed. These inventions determine the properties of a particular formation within a reservoir as the reservoir is being intersected during well construction. In one form of the invention, the formation evaluation is made using a direct measurement of the formation's ability to flow fluids. The flow potential of a reservoir during underbalanced well construction is determined as the well is being constructed. The methods produce an understanding of the volumes and types of fluids such as oil, gas, and/or water, that can be produced out of discrete sections of a formation within a reservoir as the reservoir is intersected. The trajectory and path of the wellbore through the reservoir are modified to intersect formation having more desirable permeability and productivity to decrease the time to market of the hydrocarbon reserves within a reservoir without the time delay inherent when conventional formation evaluation techniques are applied. A downhole flow measurement instrument is used to obtain actual flow ratios. The instrument is integrated into a near-bit stabilizer and can be used for early kick and benign &ldquo;breathing&rdquo; fractures detection in the open hole wellbore.

Method, system and tool for reservoir evaluation and well testing during drilling operations

A real-time matrix evaluation method based on the line-source solution to the radial-flow transient well testing problem. Skin factor is calculated directly from the bottomhole pressure response based on a number of known input parameters for the well being treated.

Method for evaluating acidizing operations

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Katy, TX, United States of America

James L Hunt