建设杏耀娱乐测速

办理会员咨询热线:010-68368810,010-68330319,010-82929830,010-68356353

水泥快速固化 提高作业效率-石油圈

所在地区:
其他地区
发布日期:
2019年8月13日
建设快讯正文

快速凝固水泥可缩短候凝时间,每口井可节约成本8000美元。

编译丨惊蛰

一家大型油气公司在Delaware盆地开发多口井过程中,采用了密度为15.6ppg的常规H级尾浆。水泥浆在10至13小时后,强度才能达到500psi要求。因此,在钻出管鞋前,还得等待2至3个小时。而现场平均费率高达每小时3200美元,水泥候凝造成的时间成本非常高。

开发商意识到需要更快地达到抗压强度,优化每口井的作业效率。然而,传统的添加剂由于粒径小、表面积大,容易导致水泥浆粘度过高。因此,哪怕在井场添加速凝剂,也并不能解决候凝时间过长这一问题。

Nine能源服务公司的作业团队利用创新型水泥来应对这一挑战,该系列水泥在规定的8小时侯凝时间内,水泥强度可增长至500psi,提前3小时达到了抗压强度。

该产品名为Rapid Set 1,结合了胶凝材料与特殊添加剂,在最短的候凝时间内,可使水泥尾浆达到足够的稠度与流体特性。

为便于现场搅拌,作业人员可以将这些水泥浆以4-6桶/分钟或更快的速度进行混合、泵送。在测试首浆过程中,以15.6ppg的密度泵入井中,在动态搅拌(相当于静置2小时)后6小时内,泥浆强度逐渐增加至500psi。

在抗压强度逐渐增加过程中,利用Micro-Motion密度计、放射性密度计以及压力泥浆比重计来维持与确认水泥浆的密度。这种统一的一致性,使开发商能够成功实现封隔,避免短期与长期的失效,确保井筒完整性。

对于需要轻质水泥浆的地层,其他开发商应用了密度为13.5至14.2 ppg的Rapid Set 1,并在不到8小时内,强度逐渐增至500psi。自该配方推出以来,已经在现场应用了150余次,通过缩短候凝时间,平均每口井能够节省成本8000美元。

缩短候凝与循环时间是该技术的主要优势之一,可以快速将水泥泵送入环空中。Nine公司的Rapid Set 1水泥浆仅需6个小时即可快速凝固,可以移至完井作业的下一阶段,节约作业时间。只需一天的时间,就可以获得完全硬化的胶结物,为下步作业做好充足准备。提前继续作业,这样该井就能更快的投产。

Rapid Set 1是一款真正的速凝水泥。在该公司的实验室里,它是按照快速凝固的特性来配制的,因此可以随时准备将其泵送至井内。无需在井场计算所要加入速凝添加剂的量,而其他同类产品供应商则需要这个流程。总之,使用Nine公司的Rapid Set 1,您可以增加作业的简易性、速度以及效率,从而缩短作业总时间。

Quick-Setting Cement Minimizes Wait Time In Delaware Basin, Saves $8,000 Per Well

A major operator was working to develop multiple wells in the Delaware Basin running a conventional Class H tail slurry at 15.6 ppg. The slurry was reaching 500 psi in 10-13 hours, causing a 2-3 hour wait per intermediate casing job prior to shoe drill-out. At a spread rate of $3,200 per hour, the time spent waiting on cement was adding up quickly.

The operator realized they needed to achieve compressive strength faster to optimize efficiency on each well. However, since conventional strength-enhancing additives can result in high slurry viscosity due to small particle size and increased surface area, the extra step of calculating and adding accelerators at the well site would not solve the problem.

Achieving compressive strength up to 3 hours sooner

The engineering team at Nine Energy Service answered this challenge by innovating a new line of cement designed to consistently reach 500 psi in less than the required regulatory wait time of 8 hours.

Called Rapid Set 1, the mixture combines cementitious materials and specialty additives to achieve adequate thickening and fluid properties for an intermediate tail slurry within the minimum wait time.

Designed for easy mixing on location, operators can combine and pump these slurries at 4-6 bbl/min or faster if needed. The first slurry was tested and run at a density of 15.6 ppg, which consistently reached 500 psi in under 6 hours after a dynamic conditioning time equal to the placement time (usually 2 hours).

A Micro-Motion densometer, radioactive densometer and pressurized mud scales help to maintain and confirm density throughout the process as psi levels increase. This uniform consistency allowed the operator to achieve successful isolations and helped protect against short- and long-term failures.

Other operators have run Rapid Set 1 at densities of 13.5-14.2 ppg for formations requiring a lighter-weight tail slurry and have consistently reached 500 psi in less than 8 hours. In the more than 150 jobs using this formulation since its introduction, operators have saved approximately $8,000 per well by cutting hours from their wait on cement to exceed drill-out time expectations

Reduce your setting and cycle times

Run your cement and get back in the hole faster. Rapid Set 1 from Nine sets up in about six hours, so you can move to the next phase of your completion and save rig time.

Save setting time, save rig time, save money

Can’t wait to get back in the hole and complete the well? Run your cement job using Rapid Set 1 and you don’t have to – at least not for long.

~ 6 Hours Setting Time

Rapid Set 1 typically sets in about six hours. In a mere fraction of a day, you achieve a fully hardened bond that’s ready for action. You get back to work sooner, so you can bring the well online sooner.

Advanced Pure-Blend Technology

Rapid Set 1 is the one true quick-setting cement. We formulate it with quick-setting properties in our state-of-the-art laboratories, so it comes to you ready for pumping. There is no need to calculate and mix in accelerator additives at the well site – a process required by other providers.

With Nine and Rapid Set 1 you gain simplicity, speed, and efficiency, allowing you to reduce overall rig days.

点赞

详情复制该链接:http://www.oilsns.com/article/416189

按照客观、公正、公开的原则,本条信息受业主方委托独家指定在中国建设杏耀娱乐测速 www.jszhaobiao.com 发布

更多招标采购信息

注册会员 享受贴心服务

标讯查询服务

让您全面及时掌握全国各省市拟建、报批、立项、施工在建项目的项目信息。

帮您跟对合适的项目、找对准确的负责人、全面掌握各项目的业主单位、设计院、总包单位、施工企业的项目 经理、项目负责人的详细联系方式。

帮您第一时间获得全国项目业主、招标代理公司和政府采购中心发布的招标、中标项目信息。

标讯定制服务

根据您的关注重点定制项目,从海量项目中筛选出符合您要求和标准的工程并及时找出关键负责人和联系方式。

根据您的需要,向您指定的手机、电子邮箱及时反馈项目进展情况。

咨询热线:010-010-68368810,010-68330319,010-82929830,010-68356353