«Onshore and offshore oil and gas well construction»

Approaches to design and quality control of drilling fluids when constructing wells

UDC: 622.244.4.062
DOI: -

Authors:

¹ PermNIPIneft, Perm, Russia

Keywords: drilling fluid, design, drilling fluid selection algorithm, quality control, infrared spectroscopy, sedimentation stability, tender, filtration studies on core

Annotation:

The authors of the article consider an integrated approach to the issues of design and quality control of drilling fluids and chemical reagents. The criteria and algorithms for selecting the type and properties of drilling fluids at the stage of developing design solutions are given. The process of conducting drilling fluids laboratory studies of applicant companies at the stage of tender procedures for selecting service contractors for drilling fluids by a subsoil user is considered. The experience of organizing and conducting on-site quality control of drilling fluids and chemical reagents is described as well. For a comparative study of the chemical composition of reagents used to prepare drilling fluids, a method of infrared spectroscopy is proposed, which allows obtaining information on the structure of the main carbon skeleton of the molecule of organic compounds and the nature of the functional groups complementing it. Examples of IR spectra of drilling reagents of various chemical compositions are given. An integrated approach to the design and quality control of drilling fluids during wells construction allows reducing the number of complications and non-productive time during drilling.

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