研磨性

利用微型钻头模拟PDC钻头的切削破岩过程，对PDC钻头的岩石研磨性进行了试验研究。

The rock abrasiveness encountered in drilling using PDC bit was discussed .

PDC钻头的岩石研磨性试验研究

Experimental study on rock abrasiveness with PDC bit

VorteX技术在研磨性硬地层水平井中的应用实践

PD vortex application in hard abrasive formation in horizontal wells

加入适量CeO2能降低胎体的粘滞性，适宜切割研磨性较弱的石材。

The addition of CeO2 can decrease the viscidity of matrix . It is suitable for cutting flexible stone materials .

PDC钻头切削刃与钨-钴合金基体的磨损情况和较大接触应力、冲击载荷及较高的摩擦面温度引起的加速磨损，是导致PDC钻头钻遇硬的研磨性地层时磨损失效的主要原因。

Because of the accelerating wear of PDC cutters caused by serious contact stress , stronger impact forces , and higher temperature on friction face , PDC bits failed to drill hard and abrasive formations .

WH-1型电镀金刚石钻头的研制及其在坚硬、致密和弱研磨性地层中的应用

The research of WH-1 type electroplated diamond bit and its application in the hard , compact and low-abrasive formations

人造金刚石钻进中岩石研磨性的试验研究

The experimental study on the abrasiveness of rocks in synthetic diamond drilling

坚硬致密弱研磨性岩层电镀金刚石钻头研究

Study on Electroplated Diamond Bit for Extra - hard , Compact and Weak-abrasiveness Formation

切勿使用研磨性清洁剂或化学溶剂清洁，以免损坏外壳。

Never use abrasive cleansers or chemical solvents , as they may mar the casing .

金刚石钻头钻进坚硬致密弱研磨性岩层的研究现状与进展

Progress of the research on diamond drilling bits for extro-hard , compact and WEAK-ABRASION rock formation

针对软硬交错、研磨性高的地层设计了一种新型人造金刚石混合孕镶块。

A new synthetic diamond impregnated matrix for drill bit used in hard formation is designed .

适用于弱碱，弱酸，油类，尤其能耐研磨性介质。

Applicable to weak base , weak acid , oli , especially resistant to abrasive medium .

试验表明：铜针的单位路程磨损量较好地反映了岩石研磨性的高低。

It is shown that the wearing capacity of a copper needle well reflects the rock abrasiveness .

本文阐述了用钢针磨损法测定岩石研磨性的试验结果。

The results obtained from abrasiveness measurement of rocks by using the wearing capacity of a copper needle are described in this paper .

总结目前地层抗钻特性评价方法，选取岩石可钻性级值和岩石研磨性作为评价标准。

According to the summary of the methods to evaluate the formation drilling resistance , the rock drillability and abrasiveness were selected to be the standards .

收集了大量钻井岩石力学性能指标，包括岩石可钻性、压入硬度、研磨性、抗压强度、泊松比、渗透率等10余种。

Rock mechanical properties include many indicators , such as , drillability , hardness , plastic coefficient , compressive strength , modulus of elasticity , permeability , etc.

在深井和硬地层钻井中，地质构造复杂、地层倾角大、地层研磨性强，机械钻速低、钻具失效严重，钻柱设计是其中的制约因素之一。

In the process of drilling deep well and hard formations , the drill string design is one of the factors restricting low ROP and serious BHA failure .

这是因为你在商场购买的大部分锉刀研磨性太强，太坚硬，会导致指甲剥落和断裂。

This is because most nail files that you buy in the stores are too abrasive and harsh for your own nail and this can cause peeling and cracking .

该仪器结构简单，具有多种功能，可进行回转或冲击回转钻进法的可钻性测试及钻进规程的模拟，也可用来测试岩石研磨性。

This instrument , simple in structure and of multi-function , may be used to measuring the drillability and abrasivity of rocks , and simulate rotary or rotary-percussive drilling as well .

本文回顾了我国自推广金刚石钻进技术以来，金刚石钻头在坚硬致密弱研磨性岩层中钻进研究进展。

In this paper , the development of drilling extro-hard , compact and weak - abrasive rock structure with diamond bit was summarized since diamond drilling technology ' was popularized in China .

该区块地层硬、研磨性强、可钻性差、钻速低，制约着深井钻井技术水平的提高。

Because of the geological characteristics of high hardness , strong abrasiveness and the bad drill ability , the drilling speed is low , so as to restrict the advance of drilling technology .

在BCM&Ⅲ型微机上，对其数据进行了数理统计，建立了以岩石压入硬度、研磨性和塑性系数为主因子的岩石可钻性预测方程，方程的预估精度达80%左右。

The regression equations between Vdm and the main properties of the rocks have been made up for predicting rock drillability in the light of these factors , having precision of about 80 % .

自从我国推广应用金刚石钻进技术以来，就如何提高金刚石在钻进坚硬、致密、弱研磨性岩层（打滑岩层）的效率进行了许多研究。

A lot of research work has been done concerning the improvement of the effectiveness of diamond drilling through the massive and hard to cut layer since the diamond drilling technology was introduced to China .

通过对比分析研究，认为造成钻杆耐磨环失效的主要原因有：地层研磨性、钻杆的井下工况、耐磨材料选择与敷焊工艺的影响。

After Analyses and research , it was thought that the main facts which affect drilling pipe abrasion resistant ring failure were abrasive property of formations , selection of high-abrasive material , and wielding technique .

川西坳陷上三叠统至侏罗系地层主要表现为岩石致密、研磨性强，钻井速度慢，建井周期长。

From upper Triassic to Jurassic of west Sichuan Depression , the rock is dense , the grinding is strong , the speed of well drilling is slow and the cycle of building well is long .

由于大庆油田深层具有地温梯度高、岩石硬度高、研磨性强等特点，目前大庆深井钻井技术与国内外先进水平相比，仍存在一定的差距。

In deep formations of Daqing oilfield , it has high geothermal gradient , high degree of hardness and abrasivity . Compared daqing deep well drilling technology with the international advanced level , there is great gap between them .

采用气基流体作为钻井循环介质，通过改变井底应力状态、消除压持效应、降低岩石强度和研磨性、延长钻头寿命和提高井底清洁效率可有效提高钻速。

Drilling with gas-based fluids can improve drilling rate efficiently through changing bottom hole stress state , elimination of chip hold down effect , weakening rock strength and abrasive property , prolonging bit life and enhancing bottom hole cleaning efficiency .

利用灰色关联理论，建立了钻头型号和岩石力学参数、岩石可钻性、岩石研磨性之间关联关系，优选了QK18-1有不同层位不同井眼尺寸的钻头类型。

Gray correlative method is used to establish the relationship between the drill models and the parameters of formation rock mechanics , drillability , abrasivity . Based on this method , the bits for different layers and different hole sizes were optimized .

在钻探生产中经常遇到砂卵石层，砂卵石层中石英含量高，坚硬，研磨性强，形状各异，大小不一，钢粒钻进和硬质合金钻进都不适用钻进砂卵石层；

During the process of drilling , sand and gravel strata are often encountered , in which there are a lot of quartzs that are very hard and rubbing with variable shapes and sizes , so steel grains and horniness alloy drilling are not fit for the strata .

对STI的平坦化，基于CMP对不同密度图形研磨均匀性的考虑，传统的浅沟道隔离平坦化（STICMP）工艺已经无法满足要求。

For STI planarization , CMP-based polishing consider different density graphics uniformity , traditional shallow trench isolation planarization ( STI CMP ) process has been unable to meet the requirements .