Қазақстанның мұнай-газ саласының хабаршысыҚазақстанның мұнай-газ саласының хабаршысы2707-42262957-806XKMG Engineering10861610.54859/kjogi108616Research ArticleAnalysis of the efficiency of horizontal wells operation at the field “X” of Embamunaigas JSCMaylybayevAlekhan S.A.Mailybayev@kmge.kzUteyevRakhim N.R.Uteyev@kmge.kzJaxylykovTalgat S.jaxylykov.t@kmge.kzBektasAzamat A.a.bektas@kmge.kzNiyazbaevaAinur B.niyazbaeva.a@kmge.kzAtyrau branch of KMG Engineering13042023511031160410202216032023Copyright © 2023, Maylybayev A.S., Uteyev R.N., Jaxylykov T.S., Bektas A.A., Niyazbaeva A.B.2023<p>Due to the growing share of hard-to-recover oil reserves, the task of their development becomes more urgent. The development of reservoirs with a complex geological structure is caused by low rates of sampling and values of the oil recovery coefficient. This article discusses the effectiveness of the application of horizontal well drilling technology at field X in order to increase the efficiency of development and coverage of oil deposits. A horizontal well was successfully drilled at the X field, the trunk of which reaches up to 1,000 m. For all the time, 4 horizontal wells have been drilled at the field, with the exception of the one already mentioned, the length of the trunks of other wells vary from 300 to 358 m.</p>drilling technologyhorizontal wellsproductive horizonwater cutproductionoil recovery coefficientбұрғылау технологиясыкөлденең ұңғымаларөнімді горизонтсулануөндірумұнай шығару коэффициентітехнология бурениягоризонтальные скважиныпродуктивный горизонтобводненностьвыработкакоэффициент извлечения нефти1.Order of the Minister of Energy of the Republic of Kazakhstan No. 17131 dated June 28, 2018 “Ob utverzhdenii Yedinykh pravil po ratsional’nomu I kompleksnomu ispol’zovaniyu nedr”. Available from: https://adilet.zan.kz/rus/docs/V1800017131 [cited 2022 Aug 12]. (In Russ).2.Lysenko VD. Development of oil fields (design and analysis). Moscow: Nedra; 2003. P. 638. (In Russ).3.Amelin ID, Andriasov RS, Gimatudinov SK, et al. Operation and technology of development of oil and gas fields. Moscow: Nedra; 1978. P. 356. (In Russ).4.Zozulya GP, Kustyshev AV, Matieshin IS, et al. Features of oil and gas production from horizontal wells. Tyumen’: TIU; 2008. P. 161. (In Russ).5.Khissamov RS, Miyassarov AS, Khuzin RR, et al. Improving the efficiency of developing hard-to-recover reserves using horizontal and multilateral wells on the example of the Nekrasovsk oye field of OOO Karbon-Oil. Georesursy. 2017;19(3):204–208. doi: 10.18599/grs.19.3.9. (In Russ).6.Vadetskiy YV. Drilling oil and gas wells. Moscow: Academy; 2013. P. 352. (In Russ).7.Delamaide E. Using Horizontal Wells for Chemical EOR: Field Cases. Georesursy. 2017;19(3)166–175. doi: 10.18599/grs.19.3.3. (In Russ).