Selection of a criteria and a method for micro-colmatants efficiency assessment on the example of tests in clay suspension
UDC: 622.244.442.063
DOI: 10.33285/0207-2351-2023-7(655)-34-41
Authors:
SPIRIDONOV PAVEL YU.1,
ZHIVAEVA VERA V.
2,
KAPITONOV VLADIMIR A.1,2,
EVDOKIMOV DENIS V.1
1 SamaraNIPIneft, Samara, Russia
2 Samara State Technical University, Samara, Russia
Keywords: micro-colmatant, asphaltene, asphalt, gilsonite, mudstones, solubility, HTHP filtration, LTLP filtration, rheology, plastic viscosity, dynamic shear stress, static shear stress
Annotation:
The article presents the results of study of micro-colmatants used when drilling wells in the territory of the Russian Federation. The work was aimed at finding a parameter that affects the efficiency of micro-colmatants to strengthen the wells walls by comparing filtration indicators and evaluating the effect of micro-colmatants on the rheological and structural-mechanical properties of flushing fluids.
The scientific novelty of the work lies in the selection of a methodology for assessing the effectiveness of micro colmatants in a clay suspension in terms of LTLP, HTHP filtration under well conditions, as well as in assessing the effect of micro-colmatants solubility in water on the filtration index of a clay suspension with a micro-colmatant.
The purpose of the study is the selection of micro-colmatants and a comparative assessment with reagents already used for similar conditions. Based on the results of the studies, differences were identified in the mechanism of interaction between inhibitors, colmatants and micro-colmatants, the component composition of micro-colmatants was determined, the parameters measured during the studies were selected and the physicochemical and mechanical parameters indicated by the manufacturers in the accompanying documentation were analyzed. A methodology for conducting comparative studies of micro-colmatants has been developed. The results obtained have been analyzed.
Bibliography:
1. Bulatov A.I., Makarenko P.P., Proselkov Yu.M. Burovye promyvochnye i tamponazhnye rastvory: ucheb. posobie dlya vuzov. – M.: Nedra, 1999. – 424 s.
2. Ryazanov Ya.A. Entsiklopediya po burovym rastvoram. – Orenburg, 2005. – 663 s.
3. Grey Dzh.R., Darli G.S.G. Sostav i svoystva burovykh agentov (promyvochnykh zhidkostey). – M.: Nedra, 1985. – 509 s.
4. Akhmadeev R.G. Osobennosti bureniya v glinistykh otlozheniyakh // Razrabotka neftyanykh i gazovykh mestorozhdeniy. Itogi nauki i tekhniki. – M.: VINITI, 1977. – № 9.
5. Prakticheskoe primenenie metodov podbora kol’matantov dlya preduprezhdeniya oslozhneniy pri burenii skvazhin na mestorozhdeniyakh Samarskoy oblasti / M.E. Koval’, V.A. Kapitonov, K.A. Shipovskiy, A.Yu. Komareus // Stroitel’stvo neftyanykh i gazovykh skvazhin na sushe i na more. – 2017. – № 7. – S. 9–15.
6. GOST 33213-2014. Kontrol’ parametrov burovykh rastvorov v promyslovykh usloviyakh. Rastvory na vodnoy osnove: Mezhgosudarstvennyy standart: 2014. – M.: Standartinform, 2015. – 75 s.
Back to issue