[1]王彬  許紅林  文敏  范志利.在渤海灣多層薄互層稠油油藏防砂實踐分析[J].石油鉆采工藝,2018,40(6):818-822.[doi:10.13639/j.odpt.2018.06.023]
 WANG Bin,XU Honglin,WEN Min,et al.Analysis on the practical sand control of heavy oil reservoirs with multiple thin interbeds in the Bohai Bay Oilfield[J].Oil Drilling & Production Technology,2018,40(6):818-822.[doi:10.13639/j.odpt.2018.06.023]
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在渤海灣多層薄互層稠油油藏防砂實踐分析
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《石油鉆采工藝》[ISSN:1000-7393/CN:13-1072/TE]

卷:
40卷
期數:
2018年6期
頁碼:
818-822
欄目:
油氣開采
出版日期:
2018-11-20

文章信息/Info

Title:
Analysis on the practical sand control of heavy oil reservoirs with multiple thin interbeds in the Bohai Bay Oilfield
文章編號:
1000 – 7393( 2018 )06 – 0818 – 05
作者:
王彬1  許紅林2  文敏1  范志利1
1. 中海油研究總院有限責任公司;2. 重慶科技學院
Author(s):
WANG Bin1 XU Honglin2 WEN Min1 FAN Zhili1
1. CNOOC Research Institute, Beijing 100028, China; 2. Chongqing University of Science & Technology, Chongqing 401331, China
關鍵詞:
稠油油藏 優質篩管防砂 壓裂充填防砂 黏土礦物 蒙脫石
Keywords:
heavy oil reservoir high-quality screen sand control frac-packing sand control clay mineral montmorillonite
分類號:
TE257
DOI:
10.13639/j.odpt.2018.06.023
文獻標志碼:
B
摘要:
根據油田地質特征、儲量規模和地理位置,在渤海灣油田開展了10 余年的完井及其防砂方式的探索和實踐,先后提出并實施了適度防砂、ECP+ 優質篩管、膨脹篩管、壓裂充填等多種完井及其防砂方式。然而,這些完井及其防砂方式難以完全滿足該油田對高產、穩產的要求。前期試驗結果表明,裸眼內下入優質篩管的適度出砂技術,因其完井費用低、表皮因數低, 成為該油田的主要防砂方式,截至2011 年5 月,先后應用在171 口生產井當中。但是,隨著生產的進行,多數生產井出現產能遞減快、出砂嚴重、生命周期短等現象。壓裂充填防砂技術有效解決了油井出砂的難題,同時能夠使油井長期保持穩產,截至2015 年7 月,壓裂充填防砂技術在該油田作業已經超過了150 井次,多達507 個防砂層位,該技術已成為該油田后期生產井的主要防砂方式。文章分析了該油田完井及防砂方式變化的主要原因,并提出了相關的優化改進建議,為后續稠油油田防砂方式的選擇提供了借鑒。
Abstract:
Bohai Bay Oilfield has explored and practiced well completion technologies and their sand control modes for over 10 years according to its geological characteristics, reserve scale and geographical location, and it has successively developed and implemented several completion technologies and their sand control modes, including appropriate sand control, ECP+high-quality screen, expandable screen and fracture packing. However, these well completion technologies and their sand control modes can hardly satisfy Bohai Bay Oilfield’s requirements of high production and stable production. It is shown from the pre-stage test that the appropriate sand control technology of running the high-quality screen into the open hole was once the main sand control mode in Bohai Bay Oilfield due to its low well completion cost and low skin factor. And by May 2011, it had been applied in 171 production wells. As the production goes, however, most production wells are suffered from fast production decline, serious sand production and short service life. In this situation, the frac-packing sand control technology solves the difficulty of sand production in oil wells effectively, while keeping the long-term stable production of oil wells. By July 2015, the frac-packing sand control technology had been applied in Bohai Bay Oilfield by more than 150 well times in 507 sand control horizons. And this technology is now the main sand control mode used in late production wells in Bohai Bay Oilfield. In this paper, the main reasons for the change of well completion technologies and their sand control modes in Bohai Bay Oilfield were analyzed, and the corresponding optimization and improvement suggestions were proposed. The research results provide the guidance for the selection of sand control modes in heavy oil fields in the future.

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