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A. G. Kenicer
林立, 邢兆栋, 张宏: 抽油机间抽与功率切换控制装置. 石油大学, 刘芳, 北京同立伟业, July 2, 2003: CN01274782.3 (13 worldwide citation)

一种抽油机间抽与功率切换控制装置,它包括功率变送器、单片机控制器、A/D转换电路和开关量输出电路。功率变送器接电机的主回路,具体地接电机的电源空气开关与接触器回路中间。将电机的输出功率转换成电流信号,经过A/D转换器进行模数转换,送至控制装置的单片机控制器,单片机口线接程序存储器和数据存储器,单片机输出通过开关输出量通过继电器直接控制抽油机电控箱的交流接触器。单片机输入端接轻触式按键和显示器。本实用新型将Δ/Y双向切换与定时间抽控制功能合为一体,实现Δ/Y双向自动切换和具有定时间抽功能的智能控制,使得抽油机可以在更加节能与安全的状态下运行。


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Terizhandur S Ramakrishnan, R K Michael Thambynayagam: Real time monitoring and control of downhole reservoirs. Schlumberger Technology Corporation, David P Gordon, William B Batzer, November 30, 1999: US05992519 (206 worldwide citation)

The method for the active or automated control of the reservoir uses a reservoir model with available data such as seismic, log, and core data as inputs, and uses the reservoir model in conjunction with a reservoir simulation tool in order to determine a production strategy which will maximize certa ...


3
Lisa A Cantu, Marion W Osborne, Edward F McBride: Well treatment process. Conoco, Richard W Collins, September 18, 1990: US04957165 (194 worldwide citation)

Hydroxyacetic acid condensation product is used as a fluid loss material in a well completion or workover process in which a fluid comprising a hydrolyzable aqueous gel is used. The hydroxyacetic acid condensation product degrades at formation conditions to provide hydroxyacetic acid which breaks th ...


4
Robert Gardes: Method and system for drilling and completing underbalanced multilateral wells utilizing a dual string technique in a live well. Garvey Smith Nehrbass & Doody, May 23, 2000: US06065550 (176 worldwide citation)

A method and system of drilling multiple radial wells using underbalanced drilling, by first drilling a principal wellbore; then providing a first carrier string having a deflection member on its lowermost end to a certain depth within the principal wellbore; orienting the deflection member into a p ...


5
Paulo S Tubel, Albert A Mullins II, Kevin R Jones, Frank D Richardson: Downhole production well control system and method. Baker Hughes Incorporated, Fishman Dionne Cantor & Colburn, March 31, 1998: US05732776 (175 worldwide citation)

A downhole production well control system is provided for automatically controlling downhole tools in response to sensed selected downhole parameters. An important feature of this invention is that the automatic control is initiated downhole without an initial control signal from the surface or from ...


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John M Hirsch, George Leo Stegemeier, James William Hall, Harold J Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl Jr: Use of downhole high pressure gas in a gas-lift well and associated methods. Shell Oil Company, Rachael Stiegel, December 12, 2006: US07147059 (162 worldwide citation)

A gas-lift petroleum well and method for producing petroleum products using downhole pressurized gas to provide lift. The gas-lift well having a well casing, a production tubing, a packer, and a gas-lift valve. The well casing extends within a wellbore of the well, and the wellbore extends through o ...


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Benn Voll, Michael H Johnson, John W Harrell: Flow control apparatus and methods. Baker Hughes Incorporated, Madan Mossman & Sriram P C, September 5, 2000: US06112817 (162 worldwide citation)

The present invention provides a method for obtaining equalized production from deviated wellbores. A plurality of spaced apart flow control device are deployed along the length of the wellbore. The fluid from various zones are drawn in a manner that depletes the reservoir uniformly along the entire ...


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Harrell John W, Johnson Michael H, Voll Benn Arild: Flow control apparatus and method. Baker Hughes, December 9, 1998: GB2325949-A (145 worldwide citation)

A method for obtaining equalized production from deviated wellbores comprising a plurality of spaced apart flow control device 20a-n which are deployed along the length of the wellbore 14. Each control device includes a flow valve 24a-n and control units 26a-n to control flow output from the flow co ...


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Robert Gardes: Method and system for drilling underbalanced radial wells utilizing a dual string technique in a live well. Pravel Hewitt Kimball & Krieger, February 24, 1998: US05720356 (145 worldwide citation)

A method and system of drilling multiple radial wells using underbalanced drilling, by first drilling a principal wellbore. There would then be provided a first carrier string having a deflection member on its lowermost end to a certain depth within the principal wellbore. There is then lowered a se ...


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Michael David Fairbanks: Inhibiting reflux in a heated well of an in situ conversion system. Shell Oil Company, January 22, 2008: US07320364 (132 worldwide citation)

Certain embodiments provide a method for treating a subsurface formation. The method includes using heaters to form a heated portion of the subsurface formation. A production conduit is used to direct formation fluid in a vapor phase from the heated portion of the subsurface formation towards a surf ...