1
Andrew A Hrametz, Clarence C Gardner, Margaret C Waid, Mark A Proett: Focused formation fluid sampling probe. Halliburton Energy Services, Conley Rose & Tayon, October 16, 2001: US06301959 (171 worldwide citation)

A formation fluid sampling probe uses two hydraulic lines to recover formation fluids from two zones in a borehole. One of the zones is a guard zone and the other is a probe zone. The guard zone and the probe zone are isolated from each other by mechanical means, with the guard zone surrounding the ...


2
Andrew A Hrametz, James M Moore, Mark A Proett: Formation tester with improved sample collection system. Halliburton Energy Services, Eugene R Montalvo, August 10, 1999: US05934374 (88 worldwide citation)

This invention provides a formation evaluation tool for collecting a formation fluid in a chamber at a predetermined pressure and for maintaining the pressure of the collected fluid at a desired level during the retrieval of the chamber to the surface. The formation fluid is pumped into the chamber ...


3
James R Birchak, Mark A Proett: Apparatus and method for analyzing a retrieving formation fluid utilizing acoustic measurements. Halliburton Energy Services, Madan & Morris PLLC, April 21, 1998: US05741962 (87 worldwide citation)

This invention provides a closed-loop system for in situ testing of formation fluid conditions and for selectively collecting substantially mud filtrate free formation fluid samples at original formation conditions. The system contains an elongated member having a probe that is sealingly placed agai ...


4
Mohamed Y Soliman, Ali I Mese, Clark E Robison, James R Birchak, Paul F Rodney, Wei Han, Vimal V Shah, Eugene J Linyaev, Mark A Proett: Halliburton Energy Services, John W Wustenberg, Paul I Herman, Rodney B Carroll, September 16, 2003: US06619394 (62 worldwide citation)

A process and apparatus for treating a wellbore, comprising subjecting a substantially same portion of the wellbore to vibratory waves produced by a plurality of vibratory wave generators. The vibratory waves may have about the same frequency or a plurality of frequencies, and the frequencies may pa ...


5
Mark A Proett, Margaret C Waid, Wilson C Chin: Wireline formation tester supercharge correction method. Halliburton Energy Services, July 1, 1997: US05644076 (53 worldwide citation)

An improved formation testing method increases the accuracy of in-situ formation pressure measurements by characterizing the mudcake properties. Specifically, after a formation tester is lowered to a desired depth within a wellbore, a pad is extended to gently abut and seal against the mudcake witho ...


6
Michael T Pelletier, Mark A Proett, Bruce H Storm Jr, James Robert Birchak, Thomas Edward Ritter: Downhole densitometer. Halliburton Energy Services, William M Imwalle, Daniel J Krueger, April 30, 2002: US06378364 (49 worldwide citation)

A measurement device is provided that determines fluid properties from vibration frequencies of a sample cavity and a reference cavity. In one embodiment, the measurement device includes a sample flow tube, a reference flow tube, vibration sources and detectors mounted on the tubes, and a measuremen ...


7
Mark A Proett, Wilson C Chin, Chih C Chen: Method of formation testing. Halliburton Energy Services, December 30, 1997: US05703286 (48 worldwide citation)

A new technique for interpreting pressure data measured during a formation test. The new technique uses an exact spherical flow model that considers the effects of flow line storage and that can be solved in closed, analytical form. This technique generates a type-curve that matches the entire measu ...


8
Mark A Proett, Margaret C Waid: Wireline formation testing for low permeability formations utilizing pressure transients. Halliburton Company, February 11, 1997: US05602334 (45 worldwide citation)

An improved formation testing method for measuring initial sandface pressure and formation permeability in tight zone formations exhibiting formation permeabilities on the order of 1.0-0.001 millidarcies based on pressure transients which occur shortly after the tester enters its pressure buildup cy ...


9
James R Birchak, Thomas E Ritter, Ali I Mese, Diederik van Batenburg, William Trainor, Wei Han, Kwang Yoo, Daniel P Kusmer, Mark A Proett, Ferdinand van der Bas, Peter van der Sman, Jeroen Groenenboom, Pedro Zuiderwijk: Acoustic stimulation tool with axial driver actuating moment arms on tines. Halliburton Energy Services, Shell International Exploration and Production, John W Wustenberg, Baker Botts L, May 8, 2007: US07213681 (44 worldwide citation)

An apparatus for generating acoustic waves, the apparatus having: a support structure; two tines extending from the support structure so that proximal ends of the two tines are attached to the support structure so that distal ends of the two tines are positioned with standoffs relative to a dimensio ...


10
James R Birchak, Thomas E Ritter, Ali I Mese, Diederik van Batenburg, William Trainor, Wei Han, Kwang Yoo, Daniel P Kusmer, Mark A Proett, Ferdinand van der Bas, Peter van der Sman, Jeroen Groenenboom, Pedro Zuiderwijk: Acoustic stimulation method with axial driver actuating moment arms on tines. Halliburton Energy Services, Shell International Exploration and Production, John W Wustenberg, Baker Botts L, May 15, 2007: US07216738 (42 worldwide citation)

A method for generating acoustic waves, the method having the steps of: extending a tine from a support structure so that a proximal end of the tine is attached to the support structure and a distal end of the tine is uninhibited; positioning an oscillator so as to be supported by the support struct ...