• Skip to main content
  • Skip to primary sidebar
  • Skip to footer
  • Primary Cementing
  • Remedial Cementing
  • Plug Cementing
  • Job Execution
  • Post-job results interpretation
  • Equipment
  • Laboratory
  • Mission
  • About
  • Contact and Questions?
  • My Cementing Challenges

Better Well Cementing for ALL

The Leading Online Support Hub for Better Oil Well Cementing.

Tie-back Casing Cementing

May 31, 2016 By Lenin Diaz Torres 6 Comments

Tie-back Casing Cementing

As regular readers are aware, I encourage the asking of cementing problems so that I can publish them. If one person has a question, the chances are that others do too, and we can share the knowledge.

An inbound question from a reader

Below is a summary of an answer recently given in response to a general request about tie-back casing cementing.

Sometimes I receive questions related to a specific job, and the discussion can’t get published online. The content of this page is about a non-confidential question topic.

I have categorised this post as remedial cementing according to the original request. However, we should note that tie-back cementing can be initially defined as an extension of a casing during well construction, i.e., primary cementing.

Please feel free to provide your comments or more information about tie-back casing cementing.

Summary:

Tie-back casing and cementing is a remedial technique with the intention to cover a damaged intermediate casing above the top of an existing production liner. The cementing procedure follows the same principles and methods of primary cementing.

Tie-back cementing under such conditions involves important differences and additional risks.

  • The use of washes and spacers ahead of cement slurries will prevent cement contamination and mixing with the fluid in the hole. (Important due to the potential incompatibility with the completion fluid or brine).
  • The condition of the outer-casing should be appropriately accessed. The application of safety factors for the outer-casing burst pressure. TOC, cement density and rheology shall be selected accordingly to lower the maximum ECD.
  • The dimensions and position of the tie-back tool (mule shoe) during cementing (accounting for casing elongation) shall be adequately understood and any restriction to flow shall be appropriately identified and considered in the cement job simulation.
  • Plan for an adequate number of short joints of casing to prevent the cement head becoming too high above the rig floor.
  • We should consider a cast iron bridge plug (CIBP). The ECD generated during the tie-back cementing operation could leak downwards and/or exceed formation pressure.
  • The most important cement slurry properties are Free Water, Fluid Loss, Rheology, Gelling tendency, i.e., Cement Slurry Stability.

Need more information?

Feel free to comment below.

Related posts:

  1. Workover Cementing Techniques 2: Squeeze Cementing
  2. Cement, Spacer, all there. But where’s the wiper plug?
  3. Misconceptions About Cementing
  4. Primary Cementing Checklist (Customer)

Filed Under: Remedial Cementing

Article Posted By:

Lenin Diaz is an oil industry specialist with 26 years of technical and operational expertise in fluids, cementing, water control and shut-off. A distinguished track record spanning BP, Schlumberger, and NAPESCO. Lenin lives in Tenerife, Spain and is the creator of this website. Read More…

Reader Interactions

Comments

  1. Jahromi says

    June 5, 2016 at 12:02 pm

    what range of fluid loss is ok for in example: 7″ tie back in 9 5/8″ csg? I asked this question because there is no formation as porous media to loss fluid into it.
    thank you Mr. Diaz

    Reply
    • Lenin Diaz says

      June 5, 2016 at 8:56 pm

      In tie-back cementing, the cement slurry sometimes flows through narrow annular gaps and/or small clearance in the tie-back assembly. In this geometry, the pressure drop might be high enough to cause slurry filtration eventually impeding further cement displacement.
      The fluid loss requirement has to be assessed taking into account the tool schematic/dimensions, position of the tool (mule shoe/openings/receptacle) during the job, elongation of the casing and volume of cement (the higher the cement volume the higher the risk, hence the lower the fluid loss requirement). However a value of 75 to 150 ml/30min should be acceptable.

      Reply
      • Jahromi says

        June 10, 2016 at 6:13 am

        thank you for your complete answer.

        Reply
        • Lenin Diaz says

          June 10, 2016 at 4:18 pm

          Thanks for your contribution
          L. Diaz

          Reply
      • Jahromi says

        June 10, 2016 at 8:31 am

        Dear Mr. Diaz,
        Would you plz send me some references that exactly mention acceptable fluid loss value in primary and remedial cementing.

        Reply
        • Lenin Diaz says

          June 10, 2016 at 4:45 pm

          Jahromi,

          I will post acceptable values of API FL for primary and remedial cementing operations ASAP. However, in general the importance of FL control increases with depth, differential pressure and restrictions. FL values are also usually lower in Remedial than in primary cementing, but under certain conditions like HPHT, permeable formations layers, gas/fluids migration control or other; The FL values in primary cementing can be required to be as low as 30 ml/30min or less.
          Finally, just to understand what is low and high in terms of FL, the FL values for a cement slurry go from 15 (very low control) to 1500 ml/30min (no control).

          Thanks for your contribution

          L. Diaz

          Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Trango DEPM is a team of Oil&Gas professionals with broad experience in the O&G industry. Working on onshore and offshore projects around the world, including most vivid and challenging areas as Saudi Arabia, US Marcellus shale and North Sea, but also small on small projects, requiring individual approach, we are well equipped to help you plan, budget, implement and execute your drilling project successfully. We also cooperate with number of other professionals with experience in such areas as drilling, geology, geophysics, procurement or logistics. This allows us to fully run your project or just support you in desired areas of expertise, depends on you needs.

How I survived the 2016 Downturn and the current difficult times?

Find the content you need

Archives

24 Page Free Primary Cementing Guide

Click this image to take a look. It is comprehensive and easy to follow too!

In 2016, I launched Better Cementing for All. Now, I want to keep it alive.

For more than 26 years, I have worked in oil well cementing, offering my services to some of the largest oil corporations in the world and committing myself to excellence. I have mastered my role, and in doing so, I have accrued a skill set that is extremely valuable to my fellow professionals. Eager to do whatever I can to help them, I have owned and operated Better Cementing for All since 2016.
Let me tell you what Better Cementing for All does and what it means. A resource for all oil industry professionals and for cementers both established and prospective, this is a non-profit resource that I established in order to do nothing but serve and make an impact on people who are looking to build careers for themselves in cementing.
From primary cementing to remedial cementing to plug cementing to post-job results, I do it all, and I am comfortable answering in-depth questions about each and every one of these topics. I also offer tools and tips for jobseekers, general self-development advice, and guidance for equipment choices. TO put it simply, this is the go-to spot for anyone who wants to know anything about oil well cementing.
The problem, however, is that covid-19 has made the structure of the website seem untenable. I am trying to juggle the work that I do and my non-profit initiatives and finding it all unhealthy and unsustainable. I want to keep Better Cementing for All up and running, but to do that, I need your help.


My NEW introductory VIDEO

Recent Posts

Max Out Your Cement Coverage

If we consider the main variables to ensure proper mud in hole replacement with cement: stand-off, … [Read More...] about Max Out Your Cement Coverage

Cementing Flowchart

In recent weeks, I received some reader requests to include cement job processes or procedures as … [Read More...] about Cementing Flowchart

Cementing. Challenges across permeable zones

This article will provide you with some actionable suggestions for cementing across permeable zones. … [Read More...] about Cementing. Challenges across permeable zones

Forensic Cementing

Forensic is a term usually associated with crimes. Criminal forensics is the use of science to … [Read More...] about Forensic Cementing

Cement Slurry design Basics

First, here is a handy table to simplify the process of cement slurry design: Additive … [Read More...] about Cement Slurry design Basics

well cementing pre-job cement challenge question

Remedial Cementing with Coiled Tubing (animation)

Though I am far from being an animation expert, during my training courses I have always wanted to … [Read More...] about Remedial Cementing with Coiled Tubing (animation)

Need urgent help?

WhatsApp me at this number: +34 657 07 01 78

Footer

Recent activity

Visit our latest posts and help others by adding a comment.

Make your contribution and help keep Better Cementing for All alive!

Now more than ever, we are facing a loss of expertise in our industry, and Better Cementing for All is a unifying force, featuring interactions among industry professionals, knowledge sharing through posts, and other valuable pieces of content that we need to preserve.

Recent Comments

  • Merit on Cementing Equipment from Serva SJS Limited
  • Lenin Diaz on Cementing Equipment from Serva SJS Limited
  • Lenin Diaz on All you need to know about Bentonite in Cement Slurries
  • Lenin Diaz on Cementing Equipment from Serva SJS Limited
  • Lenin Diaz on Cementing Equipment from Serva SJS Limited
  • Lenin Diaz on Suicide Squeeze Cementing: risky but valid
  • Samuel Bekele Bedjiga on All you need to know about Bentonite in Cement Slurries

Recent Posts

  • Max Out Your Cement Coverage
  • Cementing Flowchart
  • Cementing. Challenges across permeable zones
  • Forensic Cementing
  • Cement Slurry design Basics
  • Remedial Cementing with Coiled Tubing (animation)
  • Plug and Abandonment Webinar (Español)
  • Webinar series (II). Quality Assurance in Cementing Operations (Spanish)
  • Webinar series (I). Log interpretation (Spanish)

Submit your email

&middot Better Well Cementing For All is owned by L. Diaz © 2023 &middot TOS & Privacy Policy &middot Web Design &middot