钻柱强度校核实例
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displacement is 680 meters. Horizontal distance is 3.8 meters. In drilling process, accident treatment and disadvantages will be inevitably stucked, such as torque operation. Therefore pipe wrest resistant strength is the key parameters. Drill pipe joints wrest resistant intensity is a multivariate function. These variables include steel strength, connector size, thread form, palpitation, taper and surface thread or pre-tightening force and friction coefficient, etc. Drill pipe diameter and inner fittings, in certain extent determine the joints of drill pipe wrest resistant intensity. The intensity checking wrest resistant ensure the hose body wrest resistant yield strength. Pipe structure design decision was designed. Simulated performance, in the sபைடு நூலகம்me materials , conditions ,and pipe diameter in the same case, different structure size of drill pipe showed what performance is not the same. Therefore, through the structure design of drill pipe calculated and checked the strength that is not just the meaning of practical application. For example, with the pipe failure to explore more reasonable drill pipe research, which is based on the structure design are given in the standard API, based on the results of previous studies. The S135 of a factory for drill physical-chemical properties of the analysis and structural design strength calculation and checking. To drill pipe structure design, currently has a decisive impact performance in use of pipe. Failure is an important subject in the research of drill pipe, which is based on the drill pipe failure analysis that from the perspective of failure in the structural design optimization drill problems that should be paid attention to on the drill pipe structure, in order to put forward some theoretical basis for design . Specific content as follows : 1. Oilfield drilling tools failure situation investigation; 2. A company S135 pipe materials; chemical performance analysis; 3. A company S135 pipe strength calculation and analysis ;
keyword: drill column, Strength calculation, Design, Check, Drilling tools, failure
西安石油大学毕业设计(论文)
目
1. 2. 1.1 1.2 1.3
录
绪论 ....................................................................................................................................... 1 课题的意义 ............................................................................................................ 1 国内外研究现状 .................................................................................................... 2 钻柱的工作状态 .................................................................................................. 5 钻柱的受力分析 .................................................................................................. 8 钻井过程中各种应力的计算 ............................................................................ 11 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 2.1 钻柱轴向应力的计算 ............................................................................. 11 钻柱下部压力(Compressive stress)的计算 ................................. 14 钻柱剪应力(Shear stress)的计算 ................................................. 15 钻柱弯曲应力(Bending stress)的计算 ......................................... 17 钻柱抗挤(collapse Resistance)计算 ........................................... 19
1 钻柱 ................................................................................................................................. 5
2 钻具失效现状及分析 ................................................................................................... 23 钻具主要失效类型 ............................................................................................ 23 2.2.1 2.2.2 2.2.3 2.2 2.3 3.1 3.2 3.3 3.4 4.1 4.2 过量变形 ................................................................................................... 23 断裂 ........................................................................................................... 23 表面损伤 ................................................................................................... 24
关键词:钻柱;强度计算;设计;校核;钻具失效
西安石油大学毕业设计(论文)
A well drilling column strength check
Abstract: Due to a well of 5110 is an one mouthful of horizontal Wells rice. Horizontal
西安石油大学毕业设计(论文)
某井钻柱强度校核
摘 要:由于某井是一口 5110 米的深井水平井,水平位移 680 米,水平段距离 380
米。在钻井过程中不可避免地要遇到卡钻、弊钻、处理事故等过扭矩操作。因此钻杆 的抗扭强度是关键参数。钻杆接头的抗扭强度是一个多变量函数,这些变量包括钢材 强度、接头尺寸、螺纹形式、导程、锥度以及配合面螺纹或台肩的预紧力及摩擦系数 等。钻杆接头的外径和内径,在一定程度上决定了接头的抗扭强度,对钻杆的抗扭强 度进行校核,保证管体的抗扭屈服强度。 钻杆的结构设计决定了钻杆的性能,在同样材料,同样工况,钻杆外径相同的情 况下,不同结构尺寸的钻杆所表现出的性能也不一样,因此,通过对钻杆结构设计进 行强度计算和校核不仅仅有着实际应用的意义,更可以从另一种角度,例如结合钻杆 失效等问题,来探索研究更合理的钻杆结构设计,本文依据 API 给出的标准,在前人 研究结果的基础上,对某厂的 S135 钻杆进行理化性能分析和结构设计的强度计算与 校核。 目前在钻杆的使用中,失效问题是钻杆研究中的重要课题,基于钻杆的失效分析, 从失效的角度来分析优化钻杆在结构设计上应注意的问题,为今后的钻杆结构设计提 出一些理论依据。具体内容如下: 1. 2. 3. 油田钻具失效现状调研; 某公司 S135 钻杆材料理化性能分析; 某公司 S135 钻杆强度分析计算;
钻具失效的原因 ................................................................................................ 25 预防钻具失效的措施探讨 ................................................................................ 26 管体化学成分 .................................................................................................... 28 接头化学成分 .................................................................................................... 28 管体、加厚对焊区的机械性能 ........................................................................ 28 工具接头的机械性能 ........................................................................................ 29 钻杆抗拉强度计算 ............................................................................................ 30 钻杆抗扭屈服强度计算 .................................................................................... 31 4.2.1 4.2.2 钻杆管体的抗扭强度关 ........................................................................... 31 旋接接头扭矩计算 ................................................................................... 33 屈服强度挤毁压力计算公式 ................................................................... 34 塑性挤毁压力公式 ................................................................................... 35 过渡挤毁压力公式 ................................................................................... 37 弹性挤毁压力公式 ................................................................................... 38
keyword: drill column, Strength calculation, Design, Check, Drilling tools, failure
西安石油大学毕业设计(论文)
目
1. 2. 1.1 1.2 1.3
录
绪论 ....................................................................................................................................... 1 课题的意义 ............................................................................................................ 1 国内外研究现状 .................................................................................................... 2 钻柱的工作状态 .................................................................................................. 5 钻柱的受力分析 .................................................................................................. 8 钻井过程中各种应力的计算 ............................................................................ 11 1.3.1 1.3.2 1.3.3 1.3.4 1.3.5 2.1 钻柱轴向应力的计算 ............................................................................. 11 钻柱下部压力(Compressive stress)的计算 ................................. 14 钻柱剪应力(Shear stress)的计算 ................................................. 15 钻柱弯曲应力(Bending stress)的计算 ......................................... 17 钻柱抗挤(collapse Resistance)计算 ........................................... 19
1 钻柱 ................................................................................................................................. 5
2 钻具失效现状及分析 ................................................................................................... 23 钻具主要失效类型 ............................................................................................ 23 2.2.1 2.2.2 2.2.3 2.2 2.3 3.1 3.2 3.3 3.4 4.1 4.2 过量变形 ................................................................................................... 23 断裂 ........................................................................................................... 23 表面损伤 ................................................................................................... 24
关键词:钻柱;强度计算;设计;校核;钻具失效
西安石油大学毕业设计(论文)
A well drilling column strength check
Abstract: Due to a well of 5110 is an one mouthful of horizontal Wells rice. Horizontal
西安石油大学毕业设计(论文)
某井钻柱强度校核
摘 要:由于某井是一口 5110 米的深井水平井,水平位移 680 米,水平段距离 380
米。在钻井过程中不可避免地要遇到卡钻、弊钻、处理事故等过扭矩操作。因此钻杆 的抗扭强度是关键参数。钻杆接头的抗扭强度是一个多变量函数,这些变量包括钢材 强度、接头尺寸、螺纹形式、导程、锥度以及配合面螺纹或台肩的预紧力及摩擦系数 等。钻杆接头的外径和内径,在一定程度上决定了接头的抗扭强度,对钻杆的抗扭强 度进行校核,保证管体的抗扭屈服强度。 钻杆的结构设计决定了钻杆的性能,在同样材料,同样工况,钻杆外径相同的情 况下,不同结构尺寸的钻杆所表现出的性能也不一样,因此,通过对钻杆结构设计进 行强度计算和校核不仅仅有着实际应用的意义,更可以从另一种角度,例如结合钻杆 失效等问题,来探索研究更合理的钻杆结构设计,本文依据 API 给出的标准,在前人 研究结果的基础上,对某厂的 S135 钻杆进行理化性能分析和结构设计的强度计算与 校核。 目前在钻杆的使用中,失效问题是钻杆研究中的重要课题,基于钻杆的失效分析, 从失效的角度来分析优化钻杆在结构设计上应注意的问题,为今后的钻杆结构设计提 出一些理论依据。具体内容如下: 1. 2. 3. 油田钻具失效现状调研; 某公司 S135 钻杆材料理化性能分析; 某公司 S135 钻杆强度分析计算;
钻具失效的原因 ................................................................................................ 25 预防钻具失效的措施探讨 ................................................................................ 26 管体化学成分 .................................................................................................... 28 接头化学成分 .................................................................................................... 28 管体、加厚对焊区的机械性能 ........................................................................ 28 工具接头的机械性能 ........................................................................................ 29 钻杆抗拉强度计算 ............................................................................................ 30 钻杆抗扭屈服强度计算 .................................................................................... 31 4.2.1 4.2.2 钻杆管体的抗扭强度关 ........................................................................... 31 旋接接头扭矩计算 ................................................................................... 33 屈服强度挤毁压力计算公式 ................................................................... 34 塑性挤毁压力公式 ................................................................................... 35 过渡挤毁压力公式 ................................................................................... 37 弹性挤毁压力公式 ................................................................................... 38