Laboratory of Geochemical Studies of Oil, Water and Rock

The Laboratory of Geochemical Studies of Oil, Water and Rock of the Atyrau branch of KMG Engineering LLP (hereinafter referred to as the Laboratory) offers oil sample analysis using a unique fingerprinting technology using innovative methods of the Dutch-British Shell company (Patent number SR.15.12068).

The laboratory is equipped with the most modern equipment that meets international standards in the field of geochemical research, and also has highly qualified personnel who have been trained in the USA, England, the Netherlands and Russia, and have recommendations from leading companies in Kazakhstan and the world. The scientific activity of the laboratory is to provide the results of analytical studies and interpretation of the data obtained, which are further used to improve the methods of field development, exploration of promising structures, including three-dimensional modeling of sedimentary basins.

The laboratory was opened in 2015 and during the period of activity, geochemical studies were carried out on more than 5,000 oil samples from 118 different fields and structures of the Republic of Kazakhstan and the Russian Federation within the framework of 40 scientific projects. The laboratory has positive letters of recommendation from many project customers and closely cooperates with foreign institutions such as Tomsk Polytechnic University (Tomsk, Russia), TomskNIPIneft, Vtsemugol (nOvokuznetsk, Russia) in order to expand the range of services.

All numerical and graphical data are analyzed on OpenLab software (analogous to MassHunter). The latest versions of Malcom (Schlumberger) and PIGI (England) software are used to interpret geochemical data.

The laboratory performs all analyses according to the approved methods

MVI No.4-01-2015 – Component composition of oil fractions on a gas chromatograph with a mass detector;

MVI No. 4-02-2015 – Component composition of crude oil on a gas chromatograph; GOST 21153.0-75- GOST 21153.7-75 Methods of physical tests. Sampling and general requirements for methods

MVI 4 No.4-2018-SARA analysis (saturated, aromatic compound, resins and asphaltenes)from physical tests.

MVI 5 No.05-2020 Analysis of aromatic components (alkyl benzenes) in crude oil

on multidimensional gas chromatography with two flame ionizing detectors (LTM-MD-GC)

Oil fingerprinting on LTM-MD-GC and HRGC-FID

The novelty of fingerprinting technology is that this method allows you to correlate oils from different horizons, reservoirs and fields, as well as to identify similarities and differences of oil using unique components in their composition. Fingerprinting is especially beneficial when co-mining from several reservoirs at the same time, it allows you to determine the producing reservoir(s), assess the continuity of the reservoir. In the presence of several reservoirs by fingerprinting, it is possible to assess their communication in the context of one or more wells. Moreover, this technology makes it possible to quantify the volume of inflow from each individual reservoir or reservoir, as well as to distribute the volumes of extracted liquid as a percentage, thus allowing you to test the PLT technology (tests of the operated well). Fingerprinting involves the ability to identify the integrity of wells and the presence of leaks in them (corrosion of wells), as well as the throughput of tectonic faults. Such a method has not yet been used on the territory of Kazakhstan and is an innovative discovery.

The results of fingerprinting studies will allow solving issues in the construction of a geological and hydrodynamic model of the deposit, in particular in the construction of tectonic faults and facies zones. Assessment of lateral or vertical fluid communication of individual wells and reservoirs will also clarify the process of identifying development objects.

Oil analysis for fingerprinting will include:

– Preparation of an oil sample – assessment of the quality of the sample and its suitability for analysis;

– Analysis of crude oil on a high-resolution gas chromatograph with flame ionization detector and pulsating photometric detector (HR-GC FID/PFPD) (Agilent, USA)

– Analysis of crude oil on a low thermal mass gas chromatograph with two PID detectors (LTM-GC, FID/FID) (Agilent, USA)

Chromato-mass spectrometric analysis on GCMSD-SIM and GCMSMS-MRM

According to the complete biomarker and diamandoid analysis of crude oil and oil extracted from the core, the following geochemical results will be obtained:

· Determination of kerogen types of oil-producing rock on a gas chromatograph (GC) and a gas chromatograph with a mass spectrometer (GC-MS);

· Determination of the thermal maturity of oil or oil-source rock during generation and formation;

· Determination of the type of oil-producing rock (clay, carbonate);

· Determination of the degree of biodegradation and the degree of water blurring;

· Determination of sedimentation conditions during sedimentation and preservation of organic matter (oil of marine, terrigenous, lake or delta origin);

· Determination of redox conditions during sedimentation of oil-producing rock

· Determination of the type of initial organic matter (planktonic, algal, bacterial or mixed);

· Determination of the age of oil and/or oil source rocks;

· Complete analysis of biomarkers and diamandoids in oil composition;

· Determination of additional changes in oil composition during migration and in reservoir conditions;

· Determination of oil characteristics: paraffin content, concentration ratio of saturated and aromatic fractions;

* Fingerprinting and correlation “oil-oil”, “oil-oil source rock”;

C) According to the Rock-eval pyrolysis analysis, the following information can be obtained:

– The generative potential of the oil-producing rock and the content of Sorg (TOC);

– Determination of the type of organic matter and the type of kerogen

– Determination of thermal maturity of rocks

– Migrated and sought-after hydrocarbons of the rock;

– Determination of other characteristics of rocks

C) Based on the results of the analysis of the reflectivity of vitrinite, the following parameters are determined:

– thermal maturity of the oil-producing rock;

– type of maceral.

Water analysis on an ion chromatograph and MP-AES

Analysis by ion chromatography and atomic emission spectrometer with inductively coupled plasma

Nariman Sarsenbekov Department Director laboratory tests KMG Engineering LLP branch in Atyrau 060015, Atyrau, S.O. Geologist, S.Birlik, Telemunar industrial zone, st-e 4 Work phone: 8 (7122) 762 501 Cell phone: +7 701 488 89 49 e–mail: Sarsenbekov.N@llpcmg.kz

Yesimkhan Seithaziev Head of the Laboratory of geochemical studies of oil, water and rock KMG Engineering LLP branch in Atyrau 060015, Atyrau, S.O. Geologist, S.Birlik, Telemunar industrial zone, st-e 4 Work phone: 8 (7122) 762 533 Cell phone: 8(778)1870122   e–mail: Seitkhaziyev.Y@llpcmg.kz