公开(公告)号：US832431A

公开(公告)日：1906-10-02

申请号：US1906297790

申请日：1906-01-25

Applicant: STEWART GEORGE ,  STEWART GEORGE F

Inventor： STEWART GEORGE ,  STEWART GEORGE F

CPC classification number: F16J15/184

公开(公告)号：EP2129868A4

公开(公告)日：2015-10-28

申请号：EP08730879

申请日：2008-02-27

Applicant: PRECISION ENERGY SERVICES INC ,  STEWART GEORGE

Inventor： STEWART GEORGE

IPC: E21B47/00 ,  E21B21/00 ,  E21B49/00

CPC classification number: E21B47/06 ,  E21B49/00 ,  E21B2021/006

Abstract: In an underbalanced drilling system and method, a change is induced in flowing bottom hole pressure in a wellbore. Data of the surface flow rate of effluent is then measured in response to the induced change. This measured data is obtained using a multi-phase flow meter before a separator of the underbalanced drilling system. Algorithms in computer software analyze the flowing bottomhole pressure and the measured surface flow rate data and determine both permeability and formation pressure for a portion of the wellbore in real-time during the underbalanced drilling operation. Ultimately, portion of the wellbore is characterized with the determined permeability and formation pressure.

公开(公告)号：WO2008106544A3

公开(公告)日：2008-10-23

申请号：PCT/US2008055176

申请日：2008-02-27

Applicant: PRECISION ENERGY SERVICES INC ,  STEWART GEORGE

Inventor： STEWART GEORGE

IPC: E21B47/00

CPC classification number: E21B47/06 ,  E21B49/00 ,  E21B2021/006

Abstract: In an underbalanced drilling system and method, a change is induced in flowing bottom hole pressure in a wellbore. Data of the surface flow rate of effluent is then measured in response to the induced change. This measured data is obtained using a multi-phase flow meter before a separator of the underbalanced drilling system. Algorithms in computer software analyze the flowing bottomhole pressure and the measured surface flow rate data and determine both permeability and formation pressure for a portion of the wellbore in realtime during the underbalanced drilling operation. Ultimately, portion of the wellbore is characterized with the determined permeability and formation pressure.

Abstract translation: 在欠平衡钻井系统和方法中，在井眼中的井底压力下产生变化。 然后根据诱导的变化测量流出物表面流速的数据。 该测量数据在欠平衡钻井系统的分离器之前使用多相流量计获得。 计算机软件中的算法分析流动的井底压力和测量的表面流速数据，并且在欠平衡钻井操作期间实时地确定一部分井筒的渗透率和地层压力。 最终，井筒的一部分的特征在于确定的渗透率和地层压力。

公开(公告)号：GB191310234A

公开(公告)日：1914-02-12

申请号：GB191310234D

申请日：1913-05-01

Applicant: STEWART GEORGE

Inventor： STEWART GEORGE

IPC: F23L9/00

Abstract: 10,234. Stewart, G. May 1. Fire-bridges; air, supplying. - In a steamboiler furnace, heated air is supplied to the flue at the back of the bridge through a perforated refractory chamber D. One end of the chamber is supported on the bridge, which is recessed to receive it, and an opening d in it registers with an air passage g in the bridge. The chamber is semicircular in. shape and its upper surface is perforated with radial holes which may be tapered.

公开(公告)号：GB189922159A

公开(公告)日：1900-09-08

申请号：GB189922159D

申请日：1899-11-06

Applicant: HARLEY ERWIN MINER ,  STEWART GEORGE

Inventor： HARLEY ERWIN MINER ,  STEWART GEORGE

Abstract: 22,159. Harley, E. M., and Stewart, G. Nov. 6. Top-notches; runners. - The top - notch and runner of an umbrella, sunshade, or umbrella tent are made so that any rib may be independently removed. In the form shown in Figs. 4 and 5, a sleeve E, fitting over a sleeve D, has perforated flaps pressed out radially, similar flaps D' being pressed out from the sleeve D through the orifices in the sleeve E, forming pairs of lugs. The T-end or cross-pin of a rib F is placed between each pair, and secured by squeezing the pair together. Any rib is released by springing apart a pair of lugs, The Provisional Specification states that the sleeves may have a slight relative rotary movement, to release the ribs, a screw normally preventing such movement. In an alternative form shown in Fig. 6, lugs on a sleeve Care circumferentially slotted at H and radially slotted at J, forming sets of four points K which are closed in on the cross-pins, as shown. The Provisional Specification states that the lugs may be merely divided radially, to form pairs, which are treated as in the first form described.

公开(公告)号：CA2296A

公开(公告)日：1873-04-29

申请号：CA2296D

Applicant: STEWART GEORGE

Inventor： STEWART GEORGE

公开(公告)号：US802718A

公开(公告)日：1905-10-24

申请号：US1905257449

申请日：1905-04-26

Applicant: STEWART GEORGE

Inventor： STEWART GEORGE

CPC classification number: B28B7/183 ,  B28B5/10