Schlumberger Technology Corporation

Moin Muhammad

Peter S Hegeman

Ahmed Hammami

Youxiang (Julian) Zuo

Oliver Clinton Mullins

Yiyan Chen

Tsutomu Yamate

Cosan Ayan

Bhavani Raghuraman

Anthony R H Goodwin

Mohan K R Panga

Ricardo Vasques

Chengli Dong

Abdel Kharrat

Soraya Sofia Betancourt

Michael O'Keefe

John Ratulowski

Gale Hyslip Gustavson

John Allan Nighswander

Philip Rabbito

Erwan Olliero

Jinglin Gao

Hussein Alboudwarej

Craig Borman

Dingan (Dan) Zhang

Jiabao (Jack) Zhu

Jiasen Tan

Raymond G Kennedy

A method of placing proppant into a fracture formed in a subterranean formation from a wellbore is disclosed. The method comprises injecting through the wellbore a first treatment fluid to initiate the fracture in the subterranean formation; injecting through the wellbore a second treatment fluid comprising a particulate blend slurry made of proppant; the particulate blend comprising at least a first amount of particulates having a first average particle size between about 100 and 5000 &#x3bc;m and at least a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size; and forming with the particulate blend slurry a plurality of proppant-rich clusters spaced apart by proppant-free regions forming open channels.

Proppant pillar placement in a fracture with high solid content fluid

An improved method and system for characterizing the compositional components of a hydrocarbon reservoir of interest and analyzing fluid properties of the reservoir of interest based upon its compositional components.

Methods and apparatus for characterization of petroleum fluid and applications thereof

A method and system are provided for characterizing a reservoir of interest by comparing measured downhole fluid analysis measurement data with predicted downhole fluid analysis measurement data for the corresponding depth within the reservoir. The downhole fluid analysis measurement data may comprise the results of compositional analysis, gas-oil ratio measurements, and spectrophotometry measurements. The compositional analyses may be delumped to characterize the compositional components of the downhole fluid and equations of state may be used to predict compositional gradients and fluid properties with depth. The method and system enable the user to characterize a reservoir as to its states of compartmentalization and equilibrium.

Methods and apparatus for analysis of downhole compositional gradients and applications thereof

Compositions and methods of using same are described for negating asphaltene deposition in a formation, wellbore, near wellbore region, and production tubing. Compositions of the invention comprise an asphaltene solvent and a viscosity reducing agent, the asphaltene solvent and viscosity reducing agent present in a ratio so as to substantially reduce viscosity of an asphaltene-containing material while substantially negating deposition of asphaltenes either in a reservoir, in production tubing, or both when mixed or otherwise contacting the asphaltene-containing material. Methods of the invention comprise forcing a composition comprising an asphaltene solvent and a viscosity reducing agent to contact an asphaltene-containing hydrocarbon in an underground geologic formation, and producing from the formation a production composition comprising at least some of the treatment composition and at least some of the asphaltene-containing hydrocarbon under conditions sufficient to substantially negate deposition of asphaltenes in the formation.

Compositions and methods of using same in producing heavy oil and bitumen

Methods for performing downhole fluid compatibility tests include obtaining an downhole fluid sample, mixing it with a test fluid, and detecting a reaction between the fluids. Tools for performing downhole fluid compatibility tests include a plurality of fluid chambers, a reversible pump and one or more sensors capable of detecting a reaction between the fluids.

Systems and methods for downhole fluid compatibility

Methods and apparatuses for high-temperature and high-pressure measurement of pH and/or alkalinity of a fluid is described.

Spectroscopic pH measurement at high-temperature and/or high-pressure

A method of assuring the collection of reliable and quality fluid sample includes the steps of acquiring a fluid sample at a point of acquisition, analyzing physical and chemical properties of the fluid sample at the point of acquisition; recording the point of acquisition sample properties in an electronic database archive, analyzing physical and chemical properties of the fluid sample at a location remote from the point of acquisition, recording the remote location sample properties in the archive, validating the fluid sample through comparison of the point of acquisition sample properties and the remote location sample properties and recording the validated sample properties in the archive.

Fluids chain-of-custody

Growing community of inventors

Edmonton, Canada

Moin Muhammad