Special Oil & Gas Reservoirs >

2020 , Vol. 27 >Issue 6: 152 - 157

DOI: https://doi.org/10.3969/j.issn.1006-6535.2020.06.022

Drilling & Production Engineering

Research and Practice of Composite Sand Control Technology for Extra-heavy Oil in Deep Reservoirs

  • Lang Chengshan
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  • Liaohe Oilfield Company, PetroChina, Panjin, Liaoning 124010, China

Received date: 2020-05-19

  Revised date: 2020-09-01

  Online published: 2022-02-18

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Abstract

The marginal reserves of Wa 38 block in Liaohe Oilfield are difficult to exploit, and they are featured by large buried depth, long well section, multiple layers, thin layers, and high shale content. The serious sand production in these oil reservoirs has led to frequent sand sticking and pump inspections in oil wells, and the inefficient use of reserves has become increasingly serious. For this reason, a composite sand control technology idea offracturing sand control + screen sand control was put forward, forming series technologies such as resin coated sand, high-viscosity sand-carrying liquid system, sintered strainer screen, and high-sand ratio filling. The sand control efficiency has increased from 35% to more than 90%, the problem of serious sand production in the block has been solved completely, and the development effect has been improved dramatically. This technology realizes the overall efficient use of extra-heavy oil reservoirs as well as reasonable and economic development of the oilfield. This technology technically broadens the application limits of high-pressure squeeze-injection sand control technology, which can provide a technical reference for the development of similar reservoirs.

Key words： composite sand control; resin coated sand; sand-carrying liquid; sintered strainer screen; extra-heavy oil; Wa 38 block; Liaohe Oilfield

Cite this article

Lang Chengshan . Research and Practice of Composite Sand Control Technology for Extra-heavy Oil in Deep Reservoirs[J]. Special Oil & Gas Reservoirs, 2020 , 27(6) : 152 -157 . DOI: 10.3969/j.issn.1006-6535.2020.06.022

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