Lab Experiment and Numerical Modeling of Sulfur-resisting Downhole Choke Under 105 MPa Differential Pressure

doi:10.3969/J. ISSN.1006-768X.2021.04.19

Drilling & Production Technology ›› 2021, Vol. 44 ›› Issue (4): 81-85.DOI: 10.3969/J. ISSN.1006-768X.2021.04.19

• DRILLING & PRODUCTION EQUIPMENT • Previous Articles Next Articles

Lab Experiment and Numerical Modeling of Sulfur-resisting Downhole Choke Under 105 MPa Differential Pressure

XU Dingjiang^1,2, JIANG Yuan¹ , YANG Yunshan¹ , YU Chenggang¹, LI Kui¹, XIE Jia³

1 . Engineering Technology Research Institute, PetroChina Southwest Oil & Gas Field CO. , Chengdu, Sichuan 610017,China; 2. State Key Lab of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 3. Chuanzhong Oil & Gasfield, PetroChina Southwest Oil & Gas Field CO. , Suining, Sichuan 629018, China

Online:2021-07-25 Published:2021-07-25

105 MPa抗硫井下节流器研制及数值模拟实验

许定江^{1 ,2}, 江源¹, 杨云山¹, 喻成刚¹, 李奎¹, 谢嘉³

1 中国石油西南油气田公司工程技术研究院 2 西南石油大学油气藏地质及开发工程国家重点实验室 3 中国石油西南油气田公司川中油气矿

作者简介:许定江(1992-) , 硕士, 工程师, 主要从事井下工具的设计?研发及仿真计算。地址: ( 610017) 四川省成都市青羊区小关庙后街25 号, 电话:18144340215, E-mail: xdj_swpu@ 163 . com
基金资助:
中石油西南油气田公司科研项目“105 MPa 抗硫井下节流器研制及试验”( 编号:20190303 - 21 ) 。

Abstract

Abstract:

In view of the existence of abnormal ultra-high pressure sour gas reservoir in southwest oil and gas fields, such as Feixianguan formation, Changxing formation and Maokou formation, the current throttling differential pressure of sulfur resisting downhole choke is less than 70 MPa, which cannot meet the throttling and stable production demand of ultra-high pressure wells. To this end, a new type of ultra-high pressure sulfur-resisting downhole choke under 105 MPa differential pressure was developed. During the development of this tool, sulfur-resisting material was optimized, and the laboratory experiment for sealing and pressure bearing was carried out to ensure the sealing performance and pressure bearing performance of the tool. The throttling effect of the downhole choke is designed and verified by numerical simulation experiment,and the pressure distribution, density distribution, velocity distribution and temperature distribution of downhole choke are calculated. The structure is optimized according to the erosion and wear pattern of this tool. The numerical simulation results show that the throttling effect of the tool meets the field requirements, which can effectively reduce the risk of field experiments.

Key words: 105 MPa downhole choke, sulfur-resisting, numerical modeling, laboratory experiment

摘要： 针对西南油气田飞仙关、长兴组、茅口组等异常超高压含硫气藏，现有的抗硫井下节流器节流压差均小于７０ＭＰａ，不能满足超高压井的节流稳产需求。为此，研制了一种节流压差达到１０５ＭＰａ的新型抗硫固定式节流器。节流器研制过程中进行了抗硫材料的优选，并开展了室内高温密封承压实验，确保了工具的密封性能及承压性能。节流器的节流效果通过数值模拟实验进行设计和验证，计算得到了井下节流器的流场压力分布、密度分布、速度分布、温度分布，并根据工具冲蚀磨损情况进行了结构优化。数值模拟结果显示工具节流效果满足现场需求，能够有效降低现场实验的风险。

关键词: 105 MPa井下节流器, 抗硫, 数值模拟, 室内实验

XU Dingjiang, JIANG Yuan, YANG Yunshan, YU Chenggang, LI Kui, XIE Jia . Lab Experiment and Numerical Modeling of Sulfur-resisting Downhole Choke Under 105 MPa Differential Pressure[J]. Drilling & Production Technology, 2021, 44(4): 81-85.

许定江, 江源, 杨云山, 喻成刚, 李奎, 谢嘉. 105 MPa抗硫井下节流器研制及数值模拟实验[J]. 钻采工艺, 2021, 44(4): 81-85.

References

[1] WILLIAMSON J R, BOULDIN B. An infinitely variable choke for multi-zone intelligent well completions [ C ] .SPE 64280, 2000.
[2] KVERNLAND M, GORSKI D, SANT M, et al. Verification of downhole choke technology in a simulator using data from a north sea well [C] . SPE 194143, 2019.
[3] VACHON G, FURUI K. Production optimization in ESP completions with intelligent well technology by using downhole chokes to optimize ESP performance [C] . SPE 93621 , 2005.
[4] 谷成义, 冯朋鑫, 王晓荣, 等. HY-4 型节流器在苏里格气田的应用 [J] . 石油钻采工艺, 2010, 32 ( 4 ) :120-122.
[5] 段宝玉, 刘力军, 徐晓峰, 等. 免钢丝投捞井下节流器的研制与应用 [J] . 石油钻采工艺, 2011 ( 1 ) : 126-128.
[6] JIANG L, XU H L, SHI T H, et al. Downhole multistage choke technology to reduce sustained casing pressure in a HPHT gas well [ J] . Journal of Natural Gas Science and Engineering, 2015, 26( 9) : 992-998.
[7] WHITE A J, LAVERY P E, ROCK L. Downhole choke applications and performance impact: a tupper field montney evaluation [ C] . SPE 171598, 2014.
[8] 喻成刚, 张华礼, 邓友超. 新型井下节流器研制及应用 [ J] . 钻采工艺, 2008( 4) : 91-93.
[9] 蒋发光, 梁政, 李莲明, 等. ?73 mm 油管用井下节流器胶筒有限元分析 [ J] . 石油机械, 2011 ( 9) : 30-33.
[10] 吴义博, 杨光辉, 杨斌. 井下节流器胶筒密封性能的有限元分析 [J] . 机械设计与制造, 2018 ( 4 ) : 183-185.
[11 ] 王惠, 惠徐宁, 金伟, 等. 锁芯式井下节流器在苏里格气田的应用 [ J] . 钻采工艺, 2018, 41 ( 3) : 80-82.
[12] 胡丹, 侯治民, 滕汶江, 等. 新型活动式井下节流器的研制及应用 [ J] . 石油钻采工艺, 2014( 3) : 123-125.
[13] 赵先勤. 节流新途径及节流器的使用效果 [ J] . 天然气工业, 1993( 5) : 7071 .
[14] TIAN J L, LIANG Z, YANG L, et al. Numerical calculation of throttle nozzle diameter influence on downhole choke flow field [ J] . Applied Mechanics and Materials,2011 , 1376( 9) : 288293.
[15] 李国美, 王跃社, 王燕令, 等. 减弱节流器中颗粒冲蚀破坏措施的数值模拟 [J] . 化学工程, 2009, 37 ( 11 ) :16-19.
[16] 李国美, 王跃社, 孙虎, 等. 节流器内液固两相流固体颗粒冲蚀数值模拟 [J] . 石油学报, 2009, 30( 1 ) :145-148.

Lab Experiment and Numerical Modeling of Sulfur-resisting Downhole Choke Under 105 MPa Differential Pressure

105 MPa抗硫井下节流器研制及数值模拟实验

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments

[1]	ZHANG Ruiyao, LI Jun, LIU Gonghui. Separation Law of Hollow Spheres in Deepwater Multi-gradient Drilling and Its Influence on Wellbore Heat and Mass Transfer [J]. Drilling & Production Technology, 2021, 44(5): 16-21.
[2]	. Investigation on damage mechanism of combined brine intrusion into wells at western sichuan and countermeasures [J]. Drilling & Production Technology, 2019, 42(1): 14-16.