WO2011050500A1 - Tubulure de papillon de pointe multiniveau et système de commande automatique - Google Patents

Tubulure de papillon de pointe multiniveau et système de commande automatique Download PDF

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Publication number
WO2011050500A1
WO2011050500A1 PCT/CN2009/001248 CN2009001248W WO2011050500A1 WO 2011050500 A1 WO2011050500 A1 WO 2011050500A1 CN 2009001248 W CN2009001248 W CN 2009001248W WO 2011050500 A1 WO2011050500 A1 WO 2011050500A1
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WO
WIPO (PCT)
Prior art keywords
throttle
pressure
control
automatic control
point
Prior art date
Application number
PCT/CN2009/001248
Other languages
English (en)
Chinese (zh)
Inventor
柳贡慧
朱忠喜
李军
Original Assignee
北京联合大学
中国石油大学(北京)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京联合大学, 中国石油大学(北京) filed Critical 北京联合大学
Priority to AU2009354568A priority Critical patent/AU2009354568A1/en
Publication of WO2011050500A1 publication Critical patent/WO2011050500A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems

Definitions

  • the invention relates to automatic control of oil and gas exploration and development, and particularly relates to a fine automatic control system for oil and gas well drilling throttling pressure.
  • underbalanced drilling method to better protect the oil and gas layer effectively reduce the damage of the drilling fluid to the oil and gas layer, reduce or overcome the impact of the pressure difference on the drilling rate, effectively reduce the comprehensive cost of oil and gas well development, and greatly improve the mechanical drill Speed up and improve the success rate of oil and gas well drilling;
  • drilling a formation with a very narrow or even close mud density window it is necessary to maintain a constant wellbore annulus density throughout the drilling process to ensure drilling. The construction went smoothly. In this way, it is necessary to ensure that during the drilling process, whether it is drilling, or taking a single root, or drilling down, the wellhead back pressure can be adjusted in a timely manner to reach the construction requirements and maintain stability.
  • the currently used killing throttle manifold system is a multi-piece series structure.
  • the flow rate of the drilling fluid must be required to pass through the respective valve members, and the throttle pressure can be controlled by controlling the opening of the throttle valve.
  • the throttle valve has a serious nonlinearity in the adjustment accuracy and adjustment intensity in the relative opening range (0 ⁇ 100%), the linear adjustment area is very narrow, and the adjustment precision of the throttle valve is difficult to control under large flow conditions. And the large flow rate is more serious for the erosion of the throttling, and the throttle valve is prone to failure.
  • the technical solution of the present invention provides a multi-stage fine detail flow manifold and automatic control system, which comprises a ground throttle manifold system and an automatic control system, wherein three flat valves and one throttle The valves are connected in parallel to form a throttle manifold system.
  • the multi-stage fine detail flow manifold and the automatic control system are provided with a pressure sensor for measuring the inlet pressure of the throttle tube, a displacement sensor for measuring the opening degree of the throttle valve, and an outlet flow for measuring the throttle valve.
  • the flow meter, the sensor for measuring the switching state of each flat valve is also provided with a device for filtering and amplifying and A/D converting each signal, and sending the filter amplification and A/D converted signal to the control cabinet and the engineer.
  • Station device device for storing and displaying data
  • automatic control device which calculates and issues control commands according to the current working state of the pipeline and the back pressure pump, and steps according to various stages of throttle control flow steps
  • the opening of the valve and the opening of the throttle valve operate and speed, thereby achieving a wellhead throttling back pressure.
  • the device for storing and displaying data uses a standard industrial control computer, and is connected to the controller through a data bus, and a complete computer monitoring interface is programmed in the upper computer, and all parameters can be performed in the upper computer. It shows that the operator can control the entire pressure-controlled drilling unit through the monitoring interface.
  • the automatic control device adopts a standard control cabinet, and is internally equipped with electrical components such as a controller module, a bus module, an I/O module, a relay, a safety barrier, an isolation barrier, and a terminal block, and is mainly used for realizing control. Power distribution settings in the system, signal input, output, isolation and other functions.
  • the system makes a judgment. Selecting the switching state of each flat valve corresponding to the specific pressure control level, and then adjusting the opening value of the wellhead corresponding to the specific throttle flow channel to control the throttle valve to accurately adjust the demand value of the wellhead back pressure, and the result can greatly improve the wellhead Back pressure control accuracy.
  • the system can realize the automatic disturbance-free switching function of the throttling operation process at all levels through automatic control, ensuring the safe and smooth transition of the throttling control pressure to various control level ranges.
  • Figure 1 is a plan view of a preferred embodiment of a multi-stage fine detail flow manifold system in accordance with the present invention, wherein Figure 1A is a front view, Figure 1B is a side view, and Figure 1C is a top view.
  • Figure 2 is a schematic illustration of a preferred embodiment of a multi-stage fine detail flow manifold system automatic control system in accordance with the present invention.
  • Figure 3 is a schematic illustration of an embodiment of a flow channel for each pressure level in a multi-stage fine detail manifold system and an automatic control system in accordance with the present invention.
  • Fig. 4 is an explanatory view showing an embodiment of each pressure regulating section in the multi-stage fine detail flow manifold system and the automatic control system according to the present invention.
  • Figure 5 is a flow chart showing the data acquisition and automatic control in an embodiment of the multi-stage fine detail flow manifold system and automatic control system in accordance with the present invention. detailed description
  • 1 shows a ground multi-level fine detail flow manifold system in a preferred embodiment of the multi-stage fine detail flow manifold and automatic control system of the present invention.
  • 1 is the drilling fluid outlet gate valve returned from the wellhead;
  • 2 is 3 is the gate valve at the inlet of the throttle pipe;
  • 3 is the gate valve of the outlet of the throttle pipe;
  • 4, 5, 6 are the three plate widths for the different pressure level adjustment of the parallel throttle manifold system;
  • J is used for different pressures
  • the system is a three-layer hierarchical control structure, which is divided into the bottom layer measurement and control device from bottom to top, and the middle layer controller is controlled by an upper layer computer.
  • Step of step-by-step throttling operation in the pressure control level operation is as follows: First control pressure level: Point 1 J456 is the lower limit of the throttle pressure drop adjustment ⁇ , the throttle back pressure is
  • Second control pressure level The throttle valve is gradually closed by point 1 J456, which can increase the throttle pressure drop to point 2 J45. At this time, the throttle pressure drop can reach 2 ⁇ ; the adjustment of the pressure drop at this stage is ⁇
  • Third control pressure level The throttle valve is gradually closed by point 2 J45, which can increase the throttle pressure drop of the throttle tube to point 3 J4. At this time, the throttle pressure drop can reach 3 ⁇ ; the adjustment of the pressure drop at this stage is ⁇ . However, the back pressure generated by throttling increases from ⁇ 0+2 ⁇ to ⁇ 0+3 ⁇ ;
  • the throttle valve is gradually closed by point 3 J4, which can increase the throttle pressure drop to point ⁇ , and the throttle pressure drop can reach 4 ⁇ ; the adjustment of the pressure drop at this stage is ⁇ , However, the back pressure generated by throttling increases from ⁇ 0+3 ⁇ to ⁇ 0+4 ⁇ ;
  • P0 is defined as the true pressure of the downstream outlet of the throttle manifold.
  • point 1 J456 is currently used as the lower limit of throttling, and it is also based on this.
  • Figure 5 illustrates the data acquisition and automatic control flow in a preferred embodiment of a multi-stage fine detail flow manifold and automatic control system in accordance with the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Control Of Fluid Pressure (AREA)
  • Flow Control (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invention concerne une tubulure de papillon de pointe multiniveau et un système de commande automatique. Le système de tubulure de papillon de pointe multiniveau est composé de multiples soupapes à plaque et d'un papillon qui sont raccordés en parallèle. Le système de commande automatique permet un réglage de précision de la pression de retour de la tête de puits sous différents grades de pression par démarrage et fermeture des différentes soupapes à plaque, et par réglage des papillons en continu. Un système de commande automatique implémente une commutation en douceur pour le procédé de réglage du degré d'ouverture des soupapes afin de rendre le procédé de réglage de la pression de retour de la tête de puits rapide et sans à-coups.
PCT/CN2009/001248 2009-10-30 2009-11-12 Tubulure de papillon de pointe multiniveau et système de commande automatique WO2011050500A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2009354568A AU2009354568A1 (en) 2009-10-30 2009-11-12 Multi-level refined throttle manifold and automatic control system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200910207405 CN101694152B (zh) 2009-10-30 2009-10-30 多级精细节流管汇及自动控制系统
CN200910207405.1 2009-10-30

Publications (1)

Publication Number Publication Date
WO2011050500A1 true WO2011050500A1 (fr) 2011-05-05

Family

ID=42093145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/001248 WO2011050500A1 (fr) 2009-10-30 2009-11-12 Tubulure de papillon de pointe multiniveau et système de commande automatique

Country Status (3)

Country Link
CN (1) CN101694152B (fr)
AU (2) AU2009101354A4 (fr)
WO (1) WO2011050500A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132982A (zh) * 2013-03-22 2013-06-05 广州东塑石油钻采专用设备有限公司 一键关井系统
WO2015107447A1 (fr) * 2014-01-16 2015-07-23 Drillmec Spa Circuit collecteur pour un système de circulation de fluide de forage et procédé de déviation de la circulation du fluide
CN110887659A (zh) * 2019-12-25 2020-03-17 中国海洋石油集团有限公司 一种用于评价高温高压测试循环阀安全性的实验装置

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Publication number Priority date Publication date Assignee Title
CN101892824B (zh) * 2010-07-22 2013-07-03 中国石油天然气集团公司 一种组合式多级压力控制方法与装置
CN102536191B (zh) * 2012-03-15 2015-06-17 中国石油集团西部钻探工程有限公司 控压钻井用自动节流控制装置
CN104481436B (zh) * 2014-12-05 2017-05-10 中国石油天然气集团公司 精细控压钻井节流阀的调节方法及系统
CN107191154B (zh) * 2016-03-15 2020-07-31 中国石油化工股份有限公司 井口回压调控方法与装置
US10253585B2 (en) 2017-03-31 2019-04-09 Tech Energy Products, L.L.C. Managed pressure drilling manifold, modules, and methods
WO2018183861A1 (fr) * 2017-03-31 2018-10-04 Stasis Drilling Solutions, Llc Collecteur de forage à pression gérée, modules et procédés
CN108643887B (zh) * 2018-04-26 2020-02-21 中国石油大学(华东) 用于钻井作业的控制方法及控制装置
CN109538141B (zh) * 2018-11-27 2020-09-29 重庆科技学院 一种钻井节流管汇嵌入式自动控制装置
CN112031684B (zh) * 2019-06-03 2023-02-10 中国石油天然气集团有限公司 控压钻井回压补偿系统
CN110608026B (zh) * 2019-11-07 2020-09-15 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 基于压力波通信的井下多级压裂智能滑套控制系统及方法
CN111206895A (zh) * 2020-03-29 2020-05-29 中国石油集团渤海钻探工程有限公司 精细控压钻井液流量监测系统及方法
CN111502546B (zh) * 2020-05-29 2021-11-12 中国石油天然气集团有限公司 一种用于旋转导向系统地面遥控关闭井下单元的方法
CN114517666B (zh) * 2020-11-20 2023-08-22 中国石油天然气股份有限公司 气井的节流方法、装置、计算机设备及存储介质
CN113431513B (zh) * 2021-06-01 2022-12-16 四川宏华电气有限责任公司 一种高压节流管汇全自动控制系统
CN115749710A (zh) * 2021-12-17 2023-03-07 中国石油天然气集团有限公司 一种水力喷射回压自动控制系统及方法
CN114458178B (zh) * 2022-01-17 2022-08-05 大庆市天德忠石油科技有限公司 一种用于石油井防泄流的节流管汇

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132982A (zh) * 2013-03-22 2013-06-05 广州东塑石油钻采专用设备有限公司 一键关井系统
WO2015107447A1 (fr) * 2014-01-16 2015-07-23 Drillmec Spa Circuit collecteur pour un système de circulation de fluide de forage et procédé de déviation de la circulation du fluide
US10094187B2 (en) 2014-01-16 2018-10-09 Drillmec S.P.A. Collector circuit for drilling fluid circulation system and method for diverting the circulation of the fluid
CN110887659A (zh) * 2019-12-25 2020-03-17 中国海洋石油集团有限公司 一种用于评价高温高压测试循环阀安全性的实验装置
CN110887659B (zh) * 2019-12-25 2021-06-25 中国海洋石油集团有限公司 一种用于评价高温高压测试循环阀安全性的实验装置

Also Published As

Publication number Publication date
AU2009354568A1 (en) 2011-08-11
CN101694152B (zh) 2012-12-26
AU2009101354A4 (en) 2011-09-29
CN101694152A (zh) 2010-04-14

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