«Onshore and offshore oil and gas well construction»

Technology of the integrated impact on fractured oil-saturated carbonate reservoirs of oil and gas fields in the south of the Siberian Platform

UDC: 622.276.245.142
DOI: 10.33285/0130-3872-2022-6(354)-49-54

Authors:

¹ Institute of the Earth's Crust SB RAS, Irkutsk, Russian Federation
² Irkutsk National Research Technical University, Irkutsk, Russian Federation
³ RN-Burenie, Irkutsk, Russian Federation
⁴ Irkutsk Scientific Center SB RAS, Irkutsk, Russian Federation
⁵ RANS, Moscow, Russian Federation

Keywords: Riphean, carbonates, acid treatment, drying, hydrophobization, polymethylhydrosiloxane

Annotation:

There are several deposits in the sSouth of the Siberian Platform, of which the Riphean is the main one. It is represented by the Kuyumba, Dolgokta and Yurubchen strata. The geological conditionality of the problems of cluster production drilling is proved. The following factors complicating the drilling cycle can be distinguished: the structure of the productive horizon, the features of the hydrocarbon system, and technical limitations. Thus, in the process of initial opening, the well productivity decreases due to the interaction of the drilling fluid and its components with the rocks of the deposit and the fluids that saturate it. This problem is solved by secondary opening, which consists in various treatments of the formation well bottom zone. However, the maximum efficiency of the secondary opening requires taking into account, the uniqueness of the Riphean deposit. In this regard, the authors of the article consider the following methods: treatment with an aqueous 12,6 % hydrochloric acid solution, drying the formation by methanol and hydraulic phobization by polymethyl hydrosiloxane. Laboratory tests were carried out to evaluate the effectiveness of these methods.

Bibliography:

1. Makarov A.N., Bagrintseva K.I., Sadybekov A.T. Osobennosti stroeniya rifeyskikh karbonatnykh kollektorov Yurubchenskogo gazoneftyanogo mestorozhdeniya // Geologiya nefti i gaza. – 1998. – № 4. – S. 18–30.
2. Stepanenko G.F., Petrenko Yu.A. Issledovanie poverkhnostnykh svoystv karbonatnykh porod Yurubcheno-Tokhomskoy zony gazoneftenakopleniya // Stroenie i neftegazonosnost' karbonatnykh rezervuarov Sibirskoy platformy: sb. nauch. tr. – Novosibirsk: SNIIGGiMS, 1991. – S. 133–137.
3. Litologicheskie i gidrodinamicheskie faktory, opredelyayushchie usloviya pervichnogo vskrytiya gorizontal'nym bureniem i osvoenie produktivnykh intervalov rifeyskogo prirodnogo rezervuara Yurubcheno-Tokhomskogo NGKM / A.G. Vakhromeev, R.K. Razyapov, O.V. Postnikova [i dr.] // Geologiya i mineral'no-syr'evye resursy Sibiri. – 2015. – № 3. – S. 67–81.
4. Ibragimov G.S., Fazlutdinov K.S., Khisamutdinov N.I. Primenenie khimicheskikh reagentov dlya intensifikatsii dobychi nefti. – M.: Nedra, 1991. – 384 s.
5. Kristian M., Sokol S., Konstantinesku A. Uvelichenie produktivnosti i priemistosti skvazhin. – M.: Nedra, 1985. – S. 20–21.
6. Pat. 2205270 Ros. Federatsiya, MPK E21B 43/27. Sposob kislotnoy obrabotki plasta / G.A. Polyakov, E.N. Rylov, V.I. Tokunov [i dr.]; patentoobladatel' OOO "Astrakhan'gazprom". – № 2001123155/03; zayavl. 16.08.2001; opubl. 27.05.2003, Byul. № 15.
7. Ibragimov L.Kh., Veres S.P., Puzanov O.V. Laboratornye issledovaniya protsessa obrabotki prizaboynoy zony plasta rastvoritelyami // Geologiya, geofizika i razrabotka neftyanykh i gazovykh mestorozhdeniy. – 1995. – № 3. – S. 56–59.
8. Pat. 2181832 Ros. Federatsiya, MPK E21B 43/27, E21B 43/25. Khimreagentnyy sposob obrabotki prizaboynoy zony skvazhin / G.N. Pozdnyshev, V.N. Manyrin, V.N. Manyrin, R.F. Gaysin. – № 2000108907/03; zayavl. 10.04.2000; opubl. 27.04.2002, Byul. № 12.
9. Pat. 2236576 Ros. Federatsiya, MPK E21B 43/27. Gidrofobnaya emul'siya dlya obrabotki karbonatnogo plasta / S.B. Beketov, A.V. Serov, A.Yu. Kosyak; patentoobladatel' ZAO "Gaztekhnologiya". – № 2003125803/03; zayavl. 25.08.2003; opubl. 20.09.2004, Byul. № 26.
10. Pat. 2235198 Ros. Federatsiya, MPK E21B 43/263, E21B 43/27. Sposob obrabotki prizaboynoy zony produktivnogo plasta skvazhiny / A.V. Baldin, N.I. Novoselov, Yu.N. Kusakin [i dr.]; patentoobladateli FGUP "NII polimernykh materialov", ZAO "Permskiy inzhenerno-tekhnicheskiy tsentr "Geofizika". – № 2002126094/03; zayavl. 01.10.2002; opubl. 27.08.2004, Byul. № 24.
11. Bukhgalter E.V. Metanol i ego ispol'zovanie v gazovoy promyshlennosti. – M.: Nedra, 1986. – 238 s.
12. Novyy sposob obrabotki priskvazhinnoy zony plasta / L.A. Vyglezhaeva [i dr.] // Problemy nauchno-tekhnicheskogo progressa v stroitel'stve skvazhin v Zapadnoy Sibiri: tez. dokl. nauch.-prom. konf. – Tyumen', 1990. – S. 47.
13. Babalyan G.A. O dostizheniyakh v oblasti primeneniya PAV i khimicheskikh reagentov v neftedobyvayushchey promyshlennosti // Primenenie PAV i drugikh khimicheskikh reagentov v neftedobyvayushchey promyshlennosti: sb. st. / pod obshch. red. P.A. Rebindera [i dr.]. – M.: Nedra, 1970. – S. 3–4.
14. Primenenie kompozitsiy poverkhnostno-aktivnykh veshchestv pri ekspluatatsii skvazhin / N.M. Sherstnev, L.M. Gurvich, I.G. Bulina [i dr.]. – M.: Nedra, 1988. – 184 s.
15. Suchkov B.M. Solyanokislotnye obrabotki skvazhin v dinamicheskom rezhime // Neft. khoz-vo. – 1987. – № 6. – S. 52–56.
16. Vskrytie produktivnykh plastov i ispytanie skvazhin v usloviyakh zasolonennogo razreza / A.B. Fuks, V.V. Kazanskiy, G.N. Moskalets [i dr.] – M.: Nedra, 1978. – 127 s.
17. Pat. 2183255 Ros. Federatsiya, MPK E21B 37/06, E21B 43/25. Sposob obrabotki prizaboynoy zony produktivnogo plasta gazovoy skvazhiny / V.A. Kazakov, A.B. Fuks, V.S. Bogdanov [i dr.]; patentoobladatel' OAO "Kompaniya "RUSIA Petroleum". – № 2000115058/03; zayavl. 09.06.2000; opubl. 10.06.2002, Byul. № 16.
18. Pat. 2230897 Ros. Federatsiya, MPK E21B 43/22. Sposob gidrofobnoy obrabotki prizaboynoy zony produktivnogo plasta / V.A. Kazakov, A.B. Fuks, V.S. Bogdanov [i dr.]. – № 2002105054/03; zayavl. 26.02.2002; opubl. 20.06.2004, Byul. № 17.